Naturally occurring complex liquid hydrocarbons which, after distillation, yield combustible fuels, petrochemicals, and lubricants.
The industry concerned with the removal of raw materials from the Earth's crust and with their conversion into refined products.
Release of oil into the environment usually due to human activity.
Hydrocarbons are organic compounds consisting entirely of hydrogen and carbon atoms, forming the basis of classes such as alkanes, alkenes, alkynes, and aromatic hydrocarbons, which play a vital role in energy production and chemical synthesis.
Volative flammable fuel (liquid hydrocarbons) derived from crude petroleum by processes such as distillation reforming, polymerization, etc.
Complex petroleum hydrocarbons consisting mainly of residues from crude oil distillation. These liquid products include heating oils, stove oils, and furnace oils and are burned to generate energy.
Toxic, volatile, flammable liquid hydrocarbon byproduct of coal distillation. It is used as an industrial solvent in paints, varnishes, lacquer thinners, gasoline, etc. Benzene causes central nervous system damage acutely and bone marrow damage chronically and is carcinogenic. It was formerly used as parasiticide.
A plant genus of the family VITACEAE. Cissus rufescence gum is considered comparable to TRAGACANTH.
Substances which pollute the soil. Use for soil pollutants in general or for which there is no specific heading.
The generic name for the group of aliphatic hydrocarbons Cn-H2n+2. They are denoted by the suffix -ane. (Grant & Hackh's Chemical Dictionary, 5th ed)
Adverse effect upon bodies of water (LAKES; RIVERS; seas; groundwater etc.) caused by CHEMICAL WATER POLLUTANTS.
Elimination of ENVIRONMENTAL POLLUTANTS; PESTICIDES and other waste using living organisms, usually involving intervention of environmental or sanitation engineers.
Areas of the earth where hydrocarbon deposits of PETROLEUM and/or NATURAL GAS are located.
A colloidal system of semisolid hydrocarbons obtained from PETROLEUM. It is used as an ointment base, topical protectant, and lubricant.
A refined petroleum fraction used as a fuel as well as a solvent.
A body of water located at the southeastern corner of North America. It is bordered by the states to the north of Florida, Alabama, Mississippi, Louisiana, Texas; by five Mexican states to the west: Tamaulipas, Veracruz, Tabasco, Campeche, Yucatan; and by Cuba to the southeast.
Concentrated pharmaceutical preparations of plants obtained by removing active constituents with a suitable solvent, which is evaporated away, and adjusting the residue to a prescribed standard.
A mixture of liquid hydrocarbons obtained from petroleum. It is used as laxative, lubricant, ointment base, and emollient.
The exposure to potentially harmful chemical, physical, or biological agents that occurs as a result of one's occupation.
The aggregate enterprise of manufacturing and technically producing chemicals. (From Random House Unabridged Dictionary, 2d ed)
Compounds that provide LUBRICATION between surfaces in order to reduce FRICTION.
A family of anaerobic METHANOMICROBIALES whose cells are coccoid to straight or slightly curved rods. There are six genera.
Removal of ENVIRONMENTAL POLLUTANTS or contaminants for the general protection of the environment. This is accomplished by various chemical, biological, and bulk movement methods, in conjunction with ENVIRONMENTAL MONITORING.
Organic compounds containing carbon and hydrogen in the form of an unsaturated, usually hexagonal ring structure. The compounds can be single ring, or double, triple, or multiple fused rings.
Chemical compounds which pollute the water of rivers, streams, lakes, the sea, reservoirs, or other bodies of water.
Diseases caused by factors involved in one's employment.
The means of moving persons, animals, goods, or materials from one place to another.
The presence of bacteria, viruses, and fungi in the soil. This term is not restricted to pathogenic organisms.
Any combustible hydrocarbon deposit formed from the remains of prehistoric organisms. Examples are petroleum, coal, and natural gas.
'Ink,' when used in a medical context, typically refers to a dark watery substance used in diagnostic procedures like Schirmer's test for measuring tear production or in certain artistic applications like tattooing, which is not to be confused with the pharmaceutical or medicinal usage of the term 'ink' that relates to a preparation intended for internal use.
One of the three domains of life (the others being Eukarya and ARCHAEA), also called Eubacteria. They are unicellular prokaryotic microorganisms which generally possess rigid cell walls, multiply by cell division, and exhibit three principal forms: round or coccal, rodlike or bacillary, and spiral or spirochetal. Bacteria can be classified by their response to OXYGEN: aerobic, anaerobic, or facultatively anaerobic; by the mode by which they obtain their energy: chemotrophy (via chemical reaction) or PHOTOTROPHY (via light reaction); for chemotrophs by their source of chemical energy: CHEMOLITHOTROPHY (from inorganic compounds) or chemoorganotrophy (from organic compounds); and by their source for CARBON; NITROGEN; etc.; HETEROTROPHY (from organic sources) or AUTOTROPHY (from CARBON DIOXIDE). They can also be classified by whether or not they stain (based on the structure of their CELL WALLS) with CRYSTAL VIOLET dye: gram-negative or gram-positive.
A major group of unsaturated cyclic hydrocarbons containing two or more rings. The vast number of compounds of this important group, derived chiefly from petroleum and coal tar, are rather highly reactive and chemically versatile. The name is due to the strong and not unpleasant odor characteristic of most substances of this nature. (From Hawley's Condensed Chemical Dictionary, 12th ed, p96)
Worthless, damaged, defective, superfluous or effluent material from industrial operations.
Materials or phenomena which can provide energy directly or via conversion.
Hydrocarbon-rich byproducts from the non-fossilized BIOMASS that are combusted to generate energy as opposed to fossilized hydrocarbon deposits (FOSSIL FUELS).
Organic compounds composed exclusively of carbon and hydrogen where no carbon atoms join to form a ring structure.
Six-carbon saturated hydrocarbon group of the methane series. Include isomers and derivatives. Various polyneuropathies are caused by hexane poisoning.
Inorganic or organic compounds that contain sulfur as an integral part of the molecule.
Constituent of 30S subunit prokaryotic ribosomes containing 1600 nucleotides and 21 proteins. 16S rRNA is involved in initiation of polypeptide synthesis.
A region, north-central Asia, largely in Russia. It extends from the Ural Mountains to the Pacific Ocean and from the Arctic Ocean to central Kazakhstan and the borders of China and Mongolia.
A genus of ascomycetous fungi in the family Trichocomaceae, order EUROTIALES. Some species can cause opportunistic infections in humans, similar to its anamorph ASPERGILLUS.
Eight-carbon saturated hydrocarbon group of the methane series. Include isomers and derivatives.
A class of devices combining electrical and mechanical components that have at least one of the dimensions in the micrometer range (between 1 micron and 1 millimeter). They include sensors, actuators, microducts, and micropumps.
Techniques using energy such as radio frequency, infrared light, laser light, visible light, or acoustic energy to transfer information without the use of wires, over both short and long distances.
The external elements and conditions which surround, influence, and affect the life and development of an organism or population.

Anaerobic oxidation of o-xylene, m-xylene, and homologous alkylbenzenes by new types of sulfate-reducing bacteria. (1/660)

Various alkylbenzenes were depleted during growth of an anaerobic, sulfate-reducing enrichment culture with crude oil as the only source of organic substrates. From this culture, two new types of mesophilic, rod-shaped sulfate-reducing bacteria, strains oXyS1 and mXyS1, were isolated with o-xylene and m-xylene, respectively, as organic substrates. Sequence analyses of 16S rRNA genes revealed that the isolates affiliated with known completely oxidizing sulfate-reducing bacteria of the delta subclass of the class Proteobacteria. Strain oXyS1 showed the highest similarities to Desulfobacterium cetonicum and Desulfosarcina variabilis (similarity values, 98.4 and 98.7%, respectively). Strain mXyS1 was less closely related to known species, the closest relative being Desulfococcus multivorans (similarity value, 86.9%). Complete mineralization of o-xylene and m-xylene was demonstrated in quantitative growth experiments. Strain oXyS1 was able to utilize toluene, o-ethyltoluene, benzoate, and o-methylbenzoate in addition to o-xylene. Strain mXyS1 oxidized toluene, m-ethyltoluene, m-isoproyltoluene, benzoate, and m-methylbenzoate in addition to m-xylene. Strain oXyS1 did not utilize m-alkyltoluenes, whereas strain mXyS1 did not utilize o-alkyltoluenes. Like the enrichment culture, both isolates grew anaerobically on crude oil with concomitant reduction of sulfate to sulfide.  (+info)

Microbial desulfurization of organic sulfur compounds in petroleum. (2/660)

Sulfur removal from petroleum is important from the standpoint of the global environment because the combustion of sulfur compounds leads to the production of sulfur oxides, which are the source of acid rain. As the regulations for sulfur in fuels become more stringent, the existing chemical desulfurizations are coming inadequate for the "deeper desulfurization" to produce lower-sulfur fuels without new and innovative processes. Biodesulfurization is rising as one of the candidates. Several microorganisms were found to desulfurize dibenzothiophene (DBT), a representative of the organic sulfur compounds in petroleum, forming a sulfur-free compound, 2-hydroxybiphenyl. They are promising as biocatalysts in the microbial desulfurization of petroleum because without assimilation of the carbon content, they remove only sulfur from the heterocyclic compounds which is refractory to conventional chemical desulfurization. Both enzymological and molecular genetic studies are now in progress for the purpose of obtaining improved desulfurization activity of organisms. The genes involved in the sulfur-specific DBT desulfurization were identified and the corresponding enzymes have been investigated. From the practical point of view, it has been proved that the microbial desulfurization proceeds in the presence of high concentrations of hydrocarbons, and more complicated DBT analogs are also desulfurized by the microorganisms. This review outlines the progress in the studies of the microbial desulfurization from the basic and practical point of view.  (+info)

Potential effects of gas hydrate on human welfare. (3/660)

For almost 30 years. serious interest has been directed toward natural gas hydrate, a crystalline solid composed of water and methane, as a potential (i) energy resource, (ii) factor in global climate change, and (iii) submarine geohazard. Although each of these issues can affect human welfare, only (iii) is considered to be of immediate importance. Assessments of gas hydrate as an energy resource have often been overly optimistic, based in part on its very high methane content and on its worldwide occurrence in continental margins. Although these attributes are attractive, geologic settings, reservoir properties, and phase-equilibria considerations diminish the energy resource potential of natural gas hydrate. The possible role of gas hydrate in global climate change has been often overstated. Although methane is a "greenhouse" gas in the atmosphere, much methane from dissociated gas hydrate may never reach the atmosphere, but rather may be converted to carbon dioxide and sequestered by the hydrosphere/biosphere before reaching the atmosphere. Thus, methane from gas hydrate may have little opportunity to affect global climate change. However, submarine geohazards (such as sediment instabilities and slope failures on local and regional scales, leading to debris flows, slumps, slides, and possible tsunamis) caused by gas-hydrate dissociation are of immediate and increasing importance as humankind moves to exploit seabed resources in ever-deepening waters of coastal oceans. The vulnerability of gas hydrate to temperature and sea level changes enhances the instability of deep-water oceanic sediments, and thus human activities and installations in this setting can be affected.  (+info)

Effects of surfactant mixtures, including Corexit 9527, on bacterial oxidation of acetate and alkanes in crude oil. (4/660)

Mixtures of nonionic and anionic surfactants, including Corexit 9527, were tested to determine their effects on bacterial oxidation of acetate and alkanes in crude oil by cells pregrown on these substrates. Corexit 9527 inhibited oxidation of the alkanes in crude oil by Acinetobacter calcoaceticus ATCC 31012, while Span 80, a Corexit 9527 constituent, markedly increased the oil oxidation rate. Another Corexit 9527 constituent, the negatively charged dioctyl sulfosuccinate (AOT), strongly reduced the oxidation rate. The combination of Span 80 and AOT increased the rate, but not as much as Span 80 alone increased it, which tentatively explained the negative effect of Corexit 9527. The results of acetate uptake and oxidation experiments indicated that the nonionic surfactants interacted with the acetate uptake system while the anionic surfactant interacted with the oxidation system of the bacteria. The overall effect of Corexit 9527 on alkane oxidation by A. calcoaceticus ATCC 31012 thus seems to be the sum of the independent effects of the individual surfactants in the surfactant mixture. When Rhodococcus sp. strain 094 was used, the alkane oxidation rate decreased to almost zero in the presence of a mixture of Tergitol 15-S-7 and AOT even though the Tergitol 15-S-7 surfactant increased the alkane oxidation rate and AOT did not affect it. This indicated that there was synergism between the two surfactants rather than an additive effect like that observed for A. calcoaceticus ATCC 31012.  (+info)

Determination of tin, vanadium, iron, and molybdenum in various matrices by atomic absorption spectrometry using a simultaneous liquid-liquid extraction procedure. (5/660)

An atomic-absorption spectrometric method is described for the determination of tin, vanadium, iron, and molybdenum in two certified reference materials, food samples, and petroleum crude. After treatment with acids, these elements are separated from matrix elements by simultaneous solvent extraction of 5,5'-methylenedisalicylohydroxamic acid complexes from HCl/NaClO4 solution into an isobutyl methyl ketone/tributyl phosphate solution. The detection limits range from 0.018 to 0.19 microg/mL (n = 3), and the relative standard deviations do not exceed 2.0% at levels of 0.5, 0.6, 2.0, and 7.0 microg/mL of Fe, Mo, V, and Sn, respectively. The method is selective and suffers only from interference by Zr(IV), Ti(IV), Th(IV), W(VI), PO4(3-), and F-.  (+info)

Petroleum distillate solvents as risk factors for undifferentiated connective tissue disease (UCTD). (6/660)

Occupational solvent exposure may increase the risk of connective tissue disease (CTD). The objective of this case-control study was to investigate the relation between undifferentiated connective tissue disease (UCTD) and solvent exposure in Michigan and Ohio. Women were considered to have UCTD if they did not meet the American College of Rheumatology classification criteria for any CTD but had at least two documented signs, symptoms, or laboratory abnormalities suggestive of a CTD. Detailed information on solvent exposure was ascertained from 205 cases, diagnosed between 1980 and 1992, and 2,095 population-based controls. Age-adjusted odds ratios (OR) and 95 percent confidence intervals (CI) were calculated for all exposures. Among 16 self-reported occupational activities with potential solvent exposure, furniture refinishing (OR = 9.73, 95 percent CI 1.48-63.90), perfume, cosmetic, or drug manufacturing (OR = 7.71, 95 percent CI 2.24-26.56), rubber product manufacturing (OR = 4.70, 95 percent CI 1.75-12.61), work in a medical diagnostic or pathology laboratory (OR = 4.52, 95 percent CI 2.27-8.97), and painting or paint manufacturing (OR = 2.87, 95 percent CI 1.06-7.76) were significantly associated with UCTD. After expert review of self-reported exposure to ten specific solvents, paint thinners or removers (OR = 2.73, 95 percent CI 1.80-4.16) and mineral spirits (OR = 1.81, 95 percent CI 1.09-3.02) were associated with UCTD. These results suggest that exposure to petroleum distillates increases the risk of developing UCTD.  (+info)

Marinobacter aquaeolei sp. nov., a halophilic bacterium isolated from a Vietnamese oil-producing well. (7/660)

Several strains of moderately halophilic and mesophilic bacteria were isolated at the head of an oil-producing well on an offshore platform in southern Vietnam. Cells were Gram-negative, non-spore-forming, rod-shaped and motile by means of a polar flagellum. Growth occurred at NaCl concentrations between 0 and 20%; the optimum was 5% NaCl. One strain, which was designated VT8T, could degrade n-hexadecane, pristane and some crude oil components. It grew anaerobically in the presence of nitrate on succinate, citrate or acetate, but not on glucose. Several organic acids and amino acids were utilized as sole carbon and energy sources. The major components of its cellular fatty acids were C12:0 3-OH, C16:1, omega 9c, C16:0 and C18:1 omega 9c. The DNA G + C content was 55.7 mol%. 16S rDNA sequence analysis indicated that strain VT8T was closely related to Marinobacter sp. strain CAB (99.8% similarity) and Marinobaster hydrocarbonoclasticus (99.4% similarity). Its antibiotic resistance, isoprenoid quinones and fatty acids were similar to those of Marinobacter hydrocarbonoclasticus and Pseudomonas nautica. However, the whole-cell protein pattern of VT8T differed from that of other halophilic marine isolates, including P. nautica. DNA-DNA hybridization indicated that the level of relatedness to Marinobacter hydrocarbonoclasticus was 65% and that to P. nautica was 75%. Further differences were apparent in Fourier-transformed IR spectra of cells and lipopolysaccharide composition. It is proposed that VT8T should be the type strain of a new species and should be named Marinobacter aquaeolei. P. nautica may have been misclassified, as suggested previously, and may also belong to the genus Marinobacter.  (+info)

The role of dermal irritation in the skin tumor promoting activity of petroleum middle distillates. (8/660)

Petroleum middle distillates (PMDs), a class of hydrocarbons which boil between 350-700 degrees F, are tumor promoters in mouse skin. The promotional activity is produced under conditions that also result in local changes, including chronic irritation and epidermal hyperplasia. The present study was conducted by comparing equal weekly doses of irritating and minimally or nonirritating test materials, to assess whether tumor promotion was a secondary response to these effects. Four PMDs, C10-C14 normal paraffins (NP), lightly refined paraffinic oil (LRPO), Jet Fuel A (JF), and steam-cracked gas oil (SCGO), were evaluated. Test materials were applied undiluted (2x/week) or as 28.6% (7x/week) or 50% (4x/week) concentrations in mineral oil for 52 weeks following initiation with dimethylbenzanthracene (DMBA). When applied undiluted, all materials produced moderate irritation and significant increase in tumor incidence. When NP, LRPO, or JF were applied in mineral oil diluent, skin irritation was generally ameliorated and few, if any, tumors were produced. SCGO was irritating and produced a significant increase in tumor frequency when administered in mineral-oil diluent. These data indicate that the promotional activity of straight-run PMDs is likely related to chronic irritation at the application site and not to dose. Thus, when used appropriately in the absence of prolonged irritation, these materials should not present a tumorigenic hazard to humans.  (+info)

Petroleum is not a medical term, but it is a term used in the field of geology and petrochemicals. It refers to a naturally occurring liquid found in rock formations, which is composed of a complex mixture of hydrocarbons, organic compounds consisting primarily of carbon and hydrogen.

Petroleum is not typically associated with medical definitions; however, it's worth noting that petroleum and its derivatives are widely used in the production of various medical supplies, equipment, and pharmaceuticals. Some examples include plastic syringes, disposable gloves, catheters, lubricants for medical devices, and many active ingredients in medications.

In a broader sense, environmental or occupational exposure to petroleum and its byproducts could lead to health issues, but these are not typically covered under medical definitions of petroleum itself.

The Extraction and Processing Industry, also known as the extraction industry or the mining sector, is a major category of businesses and economic activities involved in the removal of minerals and other natural resources from the earth. This industry includes several types of extraction operations, such as:

1. Oil and gas extraction: This involves the exploration, drilling, and pumping of crude oil and natural gas from underground reservoirs.
2. Mining: This includes the extraction of various minerals like coal, iron ore, copper, gold, silver, and other metals and non-metallic minerals. There are different methods used for mining, such as surface mining (open-pit or strip mining) and underground mining.
3. Support activities for mining: This category includes services and supplies needed for the extraction of minerals, like drilling, exploration, and mining support services.

After the extraction process, these raw materials undergo further processing to transform them into usable forms, such as refining crude oil into various petroleum products or smelting metals for manufacturing purposes. This processing stage is often included in the definition of the Extraction and Processing Industry.

The medical definition of this industry may not be explicitly stated; however, it indirectly impacts public health and the environment. For instance, mining activities can lead to air and water pollution, exposure to harmful substances, and increased risk of accidents and injuries for workers. Therefore, understanding the Extraction and Processing Industry is essential in addressing potential health hazards associated with these operations.

Petroleum pollution is not a medical term per se, but it is an environmental and public health issue. It refers to the contamination of the environment, particularly water bodies, soil, and air, by petroleum products or hydrocarbons. These pollutants can originate from various sources, including oil spills, leaks from underground storage tanks, runoff from roads, and improper disposal of industrial waste.

The health effects of petroleum pollution can vary depending on the type and amount of exposure. Short-term exposure to high levels of hydrocarbons can cause irritation to the eyes, skin, and respiratory tract, while long-term exposure has been linked to more severe health problems such as neurological damage, cancer, and reproductive issues. Therefore, it is crucial to prevent and mitigate petroleum pollution to protect both the environment and public health.

I'm sorry for any confusion, but "hydrocarbons" is not a term that has a specific medical definition. Hydrocarbons are organic compounds consisting entirely of hydrogen and carbon. They are primarily used in industry as fuel, lubricants, and as raw materials for the production of plastics, fibers, and other chemicals.

However, in a broader scientific context, hydrocarbons can be relevant to medical discussions. For instance, in toxicology, exposure to certain types of hydrocarbons (like those found in gasoline or solvents) can lead to poisoning and related health issues. In environmental medicine, the pollution of air, water, and soil with hydrocarbons is a concern due to potential health effects.

But in general clinical medicine, 'hydrocarbons' wouldn't have a specific definition.

I'm sorry for any confusion, but "gasoline" is not a medical term. It is a petroleum-derived liquid used as fuel in internal combustion engines. If you have any questions about medical terms or concepts, I would be happy to help with those!

I must clarify that "Fuel Oils" is not a term typically used in medical definitions. Fuel oils are types of oil used as fuel, and they include various distillates of petroleum. They are commonly used for heating purposes or to generate electricity in industrial plants and ships.

However, if you're asking about the medical implications of exposure to fuel oils, it can cause respiratory irritation, headaches, dizziness, and nausea, especially if inhaled in large quantities or in a poorly ventilated space. Long-term exposure may lead to more severe health issues, such as bronchitis, heart disease, and cancer.

Benzene is a colorless, flammable liquid with a sweet odor. It has the molecular formula C6H6 and is composed of six carbon atoms arranged in a ring, bonded to six hydrogen atoms. Benzene is an important industrial solvent and is used as a starting material in the production of various chemicals, including plastics, rubber, resins, and dyes. It is also a natural component of crude oil and gasoline.

In terms of medical relevance, benzene is classified as a human carcinogen by the International Agency for Research on Cancer (IARC) and the Environmental Protection Agency (EPA). Long-term exposure to high levels of benzene can cause various health effects, including anemia, leukemia, and other blood disorders. Occupational exposure to benzene is regulated by the Occupational Safety and Health Administration (OSHA) to protect workers from potential health hazards.

It's important to note that while benzene has legitimate uses in industry, it should be handled with care due to its known health risks. Exposure to benzene can occur through inhalation, skin contact, or accidental ingestion, so appropriate safety measures must be taken when handling this chemical.

"Cissus" is a genus of plants in the grape family, Vitaceae. It includes around 350 species of woody vines and shrubs that are found primarily in tropical regions around the world. Some species of Cissus have been used in traditional medicine for various purposes, including wound healing and treating bone fractures. However, it is important to note that the use of these plants as a medical treatment should be done under the guidance of a healthcare professional, as they can also have side effects and interact with other medications.

I'm sorry for any confusion, but "soil pollutants" is not a term typically used in medical definitions. Soil pollution refers to the presence or accumulation of hazardous substances, chemicals, or other pollutants in soil that can have negative effects on plant life, human health, and the environment.

However, if you're asking about potential health effects of exposure to soil pollutants, it could include a variety of symptoms or diseases, depending on the specific pollutant. For example, exposure to lead-contaminated soil can lead to developmental delays in children, while exposure to certain pesticides or industrial chemicals can cause neurological problems, respiratory issues, and even cancer.

If you have more specific information about a particular substance or context, I may be able to provide a more precise answer.

Alkanes are a group of saturated hydrocarbons, which are characterized by the presence of single bonds between carbon atoms in their molecular structure. The general formula for alkanes is CnH2n+2, where n represents the number of carbon atoms in the molecule.

The simplest and shortest alkane is methane (CH4), which contains one carbon atom and four hydrogen atoms. As the number of carbon atoms increases, the length and complexity of the alkane chain also increase. For example, ethane (C2H6) contains two carbon atoms and six hydrogen atoms, while propane (C3H8) contains three carbon atoms and eight hydrogen atoms.

Alkanes are important components of fossil fuels such as natural gas, crude oil, and coal. They are also used as starting materials in the production of various chemicals and materials, including plastics, fertilizers, and pharmaceuticals. In the medical field, alkanes may be used as anesthetics or as solvents for various medical applications.

Chemical water pollution is the contamination of water bodies (such as lakes, rivers, oceans, and groundwater) with harmful chemicals or substances that negatively impact water quality and pose a threat to human health, aquatic life, and the environment. These chemical pollutants can come from various sources, including industrial and agricultural activities, waste disposal, oil spills, and chemical accidents. Examples of chemical pollutants include heavy metals (such as mercury, lead, and cadmium), pesticides, volatile organic compounds (VOCs), polychlorinated biphenyls (PCBs), and other hazardous substances. These chemicals can have toxic, carcinogenic, mutagenic, or teratogenic effects on living organisms and can disrupt ecosystems, leading to decreased biodiversity and impaired ecological functions.

Environmental biodegradation is the breakdown of materials, especially man-made substances such as plastics and industrial chemicals, by microorganisms such as bacteria and fungi in order to use them as a source of energy or nutrients. This process occurs naturally in the environment and helps to break down organic matter into simpler compounds that can be more easily absorbed and assimilated by living organisms.

Biodegradation in the environment is influenced by various factors, including the chemical composition of the substance being degraded, the environmental conditions (such as temperature, moisture, and pH), and the type and abundance of microorganisms present. Some substances are more easily biodegraded than others, and some may even be resistant to biodegradation altogether.

Biodegradation is an important process for maintaining the health and balance of ecosystems, as it helps to prevent the accumulation of harmful substances in the environment. However, some man-made substances, such as certain types of plastics and industrial chemicals, may persist in the environment for long periods of time due to their resistance to biodegradation, leading to negative impacts on wildlife and ecosystems.

In recent years, there has been increasing interest in developing biodegradable materials that can break down more easily in the environment as a way to reduce waste and minimize environmental harm. These efforts have led to the development of various biodegradable plastics, coatings, and other materials that are designed to degrade under specific environmental conditions.

I believe there may be a slight misunderstanding in your question. "Oil and gas fields" are not a medical term, but rather a term used in the geology and petroleum industry to describe areas with significant deposits of oil and natural gas. These are typically underground or underwater formations where hydrocarbons accumulate due to geological processes over millions of years.

However, I can provide you with some related medical terms that pertain to potential health impacts associated with the exploration, extraction, and use of oil and gas fields:

1. Occupational exposure: Refers to the health risks faced by workers in the oil and gas industry, who may be exposed to hazardous substances, noise, vibrations, and ergonomic stressors that can lead to various health issues such as respiratory problems, hearing loss, musculoskeletal disorders, and chemical exposures.
2. Air pollution: The release of pollutants from oil and gas operations, including volatile organic compounds (VOCs), particulate matter, nitrogen oxides, and sulfur dioxide, can contribute to poor air quality in surrounding communities, leading to respiratory issues, cardiovascular diseases, and other health problems.
3. Water contamination: Leaks, spills, or improper disposal of wastewater from oil and gas operations can lead to the contamination of groundwater and surface water resources, potentially causing adverse health effects in nearby populations, such as reproductive issues, neurological disorders, and gastrointestinal problems.
4. Noise pollution: Drilling, hydraulic fracturing (fracking), and other oil and gas operations can generate high levels of noise that may negatively impact the mental and physical health of workers and nearby residents, leading to sleep disturbances, stress, and cardiovascular issues.
5. Climate change: The combustion of fossil fuels from oil and gas fields contributes significantly to greenhouse gas emissions, driving climate change and associated health impacts such as heat-related illnesses, allergies, infectious diseases, and mental health disorders.

Petrolatum is a semi-solid mixture of hydrocarbons obtained from petroleum. In the medical field, it's often used as an ointment base or protective dressing because of its impermeability to water and bacteria. It's also known as petroleum jelly or soft paraffin.

I'm sorry for any confusion, but "Kerosene" is not a medical term. It is a type of fuel that is commonly used in lamps, stoves, and heating systems. Medically, the term "kerosene sniffing" or "huffing" is used to describe the dangerous practice of inhaling kerosene vapors to get high, which can lead to serious health consequences, including death.

I'm sorry for any confusion, but the term "Gulf of Mexico" is not a medical concept or condition. The Gulf of Mexico is a large gulf located in the North American continent, surrounded by the United States to the north, Mexico to the west and south, and Cuba to the east. It's a geographical feature, specifically an oceanic gulf, and not related to medical terminology or healthcare.

A plant extract is a preparation containing chemical constituents that have been extracted from a plant using a solvent. The resulting extract may contain a single compound or a mixture of several compounds, depending on the extraction process and the specific plant material used. These extracts are often used in various industries including pharmaceuticals, nutraceuticals, cosmetics, and food and beverage, due to their potential therapeutic or beneficial properties. The composition of plant extracts can vary widely, and it is important to ensure their quality, safety, and efficacy before use in any application.

Medical Definition of Mineral Oil:

Mineral oil is a commonly used laxative, which is a substance that promotes bowel movements. It is a non-digestible, odorless, and tasteless oil that is derived from petroleum. When taken orally, mineral oil passes through the digestive system without being absorbed, helping to soften stools and relieve constipation by increasing the weight and size of the stool, stimulating the reflexes in the intestines that trigger bowel movements.

Mineral oil is also used topically as a moisturizer and emollient for dry skin conditions such as eczema and dermatitis. It forms a barrier on the skin, preventing moisture loss and protecting the skin from irritants. However, mineral oil should not be used on broken or inflamed skin, as it can trap bacteria and delay healing.

It is important to note that long-term use of mineral oil laxatives can lead to dependence and may interfere with the absorption of fat-soluble vitamins such as A, D, E, and K. Therefore, it should be used only under the guidance of a healthcare professional.

Occupational exposure refers to the contact of an individual with potentially harmful chemical, physical, or biological agents as a result of their job or occupation. This can include exposure to hazardous substances such as chemicals, heavy metals, or dusts; physical agents such as noise, radiation, or ergonomic stressors; and biological agents such as viruses, bacteria, or fungi.

Occupational exposure can occur through various routes, including inhalation, skin contact, ingestion, or injection. Prolonged or repeated exposure to these hazards can increase the risk of developing acute or chronic health conditions, such as respiratory diseases, skin disorders, neurological damage, or cancer.

Employers have a legal and ethical responsibility to minimize occupational exposures through the implementation of appropriate control measures, including engineering controls, administrative controls, personal protective equipment, and training programs. Regular monitoring and surveillance of workers' health can also help identify and prevent potential health hazards in the workplace.

The chemical industry is a broad term that refers to the companies and organizations involved in the production or transformation of raw materials or intermediates into various chemical products. These products can be used for a wide range of applications, including manufacturing, agriculture, pharmaceuticals, and consumer goods. The chemical industry includes businesses that produce basic chemicals, such as petrochemicals, agrochemicals, polymers, and industrial gases, as well as those that manufacture specialty chemicals, such as dyestuffs, flavors, fragrances, and advanced materials. Additionally, the chemical industry encompasses companies that provide services related to the research, development, testing, and distribution of chemical products.

Medical definitions of "lubricants" refer to substances that are used to reduce friction between two surfaces in medical procedures or devices. They can be used during various medical examinations, surgeries, or when inserting medical equipment, such as catheters, to make the process smoother and more comfortable for the patient.

Lubricants used in medical settings may include water-based gels, oil-based jellies, or silicone-based lubricants. It's important to choose a lubricant that is safe and suitable for the specific medical procedure or device being used. For example, some lubricants may not be compatible with certain medical materials or may need to be sterile.

It's worth noting that while lubricants are commonly used in medical settings, they should not be used as a substitute for proper medical care or treatment. If you have any concerns about your health or medical condition, it's important to consult with a qualified healthcare professional.

Methanomicrobiaceae is a family of archaea within the order Methanomicrobiales. These are obligate anaerobic, methanogenic microorganisms that are capable of producing methane as a metabolic byproduct. They are commonly found in environments such as wetlands, digestive tracts of animals, and sewage sludge. The cells are typically irregularly shaped cocci or rods. Methanomicrobiaceae species utilize hydrogen or formate as electron donors and carbon dioxide as an electron acceptor to reduce methane. Some members of this family can also use secondary alcohols, such as methanol and ethanol, as substrates for methanogenesis.

Environmental remediation is the process of treating, removing, or containing contamination from environmental media such as soil, groundwater, sediment, or surface water for the purpose of reducing the impact on human health and the environment. The goal of environmental remediation is to return the contaminated area to its original state, or to a state that is safe for use and poses no significant risk to human health or the environment. This process often involves various techniques such as excavation, soil washing, bioremediation, chemical treatment, and thermal treatment. The specific method used depends on the type and extent of contamination, as well as site-specific conditions.

Aromatic hydrocarbons, also known as aromatic compounds or arenes, are a class of organic compounds characterized by a planar ring structure with delocalized electrons that give them unique chemical properties. The term "aromatic" was originally used to describe their distinctive odors, but it now refers to their characteristic molecular structure and stability.

Aromatic hydrocarbons contain one or more benzene rings, which are cyclic structures consisting of six carbon atoms arranged in a planar hexagonal shape. Each carbon atom in the benzene ring is bonded to two other carbon atoms and one hydrogen atom, forming alternating double and single bonds between the carbon atoms. However, the delocalized electrons in the benzene ring are evenly distributed around the ring, leading to a unique electronic structure that imparts stability and distinctive chemical properties to aromatic hydrocarbons.

Examples of aromatic hydrocarbons include benzene, toluene, xylene, and naphthalene. These compounds have important uses in industry, but they can also pose health risks if not handled properly. Exposure to high levels of aromatic hydrocarbons has been linked to various health effects, including cancer, neurological damage, and respiratory problems.

Chemical water pollutants refer to harmful chemicals or substances that contaminate bodies of water, making them unsafe for human use and harmful to aquatic life. These pollutants can come from various sources, including industrial and agricultural runoff, sewage and wastewater, oil spills, and improper disposal of hazardous materials.

Examples of chemical water pollutants include heavy metals (such as lead, mercury, and cadmium), pesticides and herbicides, volatile organic compounds (VOCs), polychlorinated biphenyls (PCBs), and petroleum products. These chemicals can have toxic effects on aquatic organisms, disrupt ecosystems, and pose risks to human health through exposure or consumption.

Regulations and standards are in place to monitor and limit the levels of chemical pollutants in water sources, with the aim of protecting public health and the environment.

Occupational diseases are health conditions or illnesses that occur as a result of exposure to hazards in the workplace. These hazards can include physical, chemical, and biological agents, as well as ergonomic factors and work-related psychosocial stressors. Examples of occupational diseases include respiratory illnesses caused by inhaling dust or fumes, hearing loss due to excessive noise exposure, and musculoskeletal disorders caused by repetitive movements or poor ergonomics. The development of an occupational disease is typically related to the nature of the work being performed and the conditions in which it is carried out. It's important to note that these diseases can be prevented or minimized through proper risk assessment, implementation of control measures, and adherence to safety regulations.

In the context of medical definitions, "transportation" typically refers to the movement of patients from one location to another. This can include the transfer of patients between healthcare facilities (such as from a hospital to a long-term care facility), between departments within a healthcare facility (such as from the emergency department to an inpatient unit), or to and from medical appointments.

Transportation may also refer to the movement of medical equipment, supplies, or specimens between locations. In this context, transportation ensures that necessary items are delivered to the right place at the right time, which is critical for providing high-quality patient care.

It's important to note that safe and timely transportation is essential for ensuring positive patient outcomes, reducing the risk of adverse events, and improving overall healthcare efficiency.

I apologize, but there seems to be a misunderstanding. "Soil microbiology" is not a medical term; rather, it is a branch of microbiology that deals with the study of microorganisms in soil. It involves understanding the diversity, ecology, and biochemistry of bacteria, fungi, algae, protozoa, and other microscopic life forms found in soil. This field has applications in agriculture, environmental science, and waste management but is not directly related to medical definitions or human health.

Fossil fuels are not a medical term, but rather a term used in the field of earth science and energy production. They refer to fuels formed by natural processes such as anaerobic decomposition of buried dead organisms. The age of the organisms and their resulting fossil fuels is typically millions of years, and sometimes even hundreds of millions of years.

There are three main types of fossil fuels: coal, petroleum, and natural gas. Coal is primarily composed of carbon and hydrogen, and it is formed from the remains of plants that lived hundreds of millions of years ago in swamps and peat bogs. Petroleum, also known as crude oil, is a liquid mixture of hydrocarbons and other organic compounds, formed from the remains of marine organisms such as algae and zooplankton. Natural gas is primarily composed of methane and other light hydrocarbons, and it is found in underground reservoirs, often in association with petroleum deposits.

Fossil fuels are a major source of energy for transportation, heating, and electricity generation, but their combustion also releases large amounts of carbon dioxide and other pollutants into the atmosphere, contributing to climate change and air pollution.

I'm sorry for any confusion, but "ink" is not a term that has a medical definition. Ink is a substance used for writing or printing, typically consisting of a colored pigment mixed with a liquid to make it flow. If you have any questions related to medicine or health, I would be happy to try and help answer those for you!

Bacteria are single-celled microorganisms that are among the earliest known life forms on Earth. They are typically characterized as having a cell wall and no membrane-bound organelles. The majority of bacteria have a prokaryotic organization, meaning they lack a nucleus and other membrane-bound organelles.

Bacteria exist in diverse environments and can be found in every habitat on Earth, including soil, water, and the bodies of plants and animals. Some bacteria are beneficial to their hosts, while others can cause disease. Beneficial bacteria play important roles in processes such as digestion, nitrogen fixation, and biogeochemical cycling.

Bacteria reproduce asexually through binary fission or budding, and some species can also exchange genetic material through conjugation. They have a wide range of metabolic capabilities, with many using organic compounds as their source of energy, while others are capable of photosynthesis or chemosynthesis.

Bacteria are highly adaptable and can evolve rapidly in response to environmental changes. This has led to the development of antibiotic resistance in some species, which poses a significant public health challenge. Understanding the biology and behavior of bacteria is essential for developing strategies to prevent and treat bacterial infections and diseases.

Polycyclic aromatic hydrocarbons (PAHs) are a group of organic compounds characterized by the presence of two or more fused benzene rings. They are called "polycyclic" because they contain multiple cyclic structures, and "aromatic" because these structures contain alternating double bonds that give them distinctive chemical properties and a characteristic smell.

PAHs can be produced from both natural and anthropogenic sources. Natural sources include wildfires, volcanic eruptions, and the decomposition of organic matter. Anthropogenic sources include the incomplete combustion of fossil fuels, such as coal, oil, and gasoline, as well as tobacco smoke, grilled foods, and certain industrial processes.

PAHs are known to be environmental pollutants and can have harmful effects on human health. They have been linked to an increased risk of cancer, particularly lung, skin, and bladder cancers, as well as reproductive and developmental toxicity. PAHs can also cause skin irritation, respiratory problems, and damage to the immune system.

PAHs are found in a variety of environmental media, including air, water, soil, and food. They can accumulate in the food chain, particularly in fatty tissues, and have been detected in a wide range of foods, including meat, fish, dairy products, and vegetables. Exposure to PAHs can occur through inhalation, ingestion, or skin contact.

It is important to limit exposure to PAHs by avoiding tobacco smoke, reducing consumption of grilled and smoked foods, using ventilation when cooking, and following safety guidelines when working with industrial processes that produce PAHs.

I'm sorry for any confusion, but "industrial waste" is not a term that has a medical definition. Industrial waste is a term used to describe waste produced by industrial activities, such as manufacturing, mining, and construction. It can include a wide variety of materials, including chemicals, metals, soil, and water. Proper management and disposal of industrial waste are important for protecting the environment and public health. If you have any questions related to healthcare or medical terminology, I'd be happy to try to help answer those!

"Energy-generating resources" is a broad term that refers to various methods and technologies used to convert different forms of energy into electricity or other useful forms. While there isn't a specific medical definition for this term, it is often discussed in the context of public health and environmental medicine due to its impact on air quality, climate change, and human health. Here are some examples of energy-generating resources:

1. Fossil fuels: These include coal, oil, and natural gas, which are non-renewable resources. They are burned to produce heat, which is then converted into electricity. The combustion process releases greenhouse gases and pollutants, contributing to climate change and air pollution-related health issues.
2. Nuclear power: This energy source involves the fission of atomic nuclei to generate heat, which is used to produce steam and drive turbines for electricity generation. While nuclear power itself does not emit greenhouse gases, it poses potential risks associated with radioactive waste disposal, accidents, and proliferation.
3. Renewable resources: These are sustainable energy sources that can be replenished naturally over time. Examples include solar power (photovoltaic or concentrated), wind power, hydroelectric power, geothermal energy, and biomass. These resources have lower environmental impacts and contribute less to air pollution and climate change compared to fossil fuels.
4. Hydrogen fuel cells: These devices convert chemical energy from hydrogen into electricity through an electrochemical reaction with oxygen or another oxidizing agent. They are clean energy sources, as the only byproducts are water and heat. However, the production of hydrogen can have environmental impacts depending on the method used (e.g., steam methane reforming vs. electrolysis powered by renewable energy).
5. Energy storage systems: While not a primary source of energy generation, energy storage technologies like batteries and capacitors play an essential role in optimizing the use of energy-generating resources. They can store excess energy produced during periods of low demand or high resource availability (e.g., solar power during the day) and release it during peak demand or resource scarcity, improving overall system efficiency and reducing the need for backup generation from fossil fuels.

In summary, "energy-generating resources" refer to various methods used to convert different forms of energy into electricity or other useful forms. The environmental and health impacts of these resources vary significantly, with renewable sources generally having lower impacts compared to fossil fuel-based options.

Biofuels are defined as fuels derived from organic materials such as plants, algae, and animal waste. These fuels can be produced through various processes, including fermentation, esterification, and transesterification. The most common types of biofuels include biodiesel, ethanol, and biogas.

Biodiesel is a type of fuel that is produced from vegetable oils or animal fats through a process called transesterification. It can be used in diesel engines with little or no modification and can significantly reduce greenhouse gas emissions compared to traditional fossil fuels.

Ethanol is a type of alcohol that is produced through the fermentation of sugars found in crops such as corn, sugarcane, and switchgrass. It is typically blended with gasoline to create a fuel known as E85, which contains 85% ethanol and 15% gasoline.

Biogas is a type of fuel that is produced through the anaerobic digestion of organic materials such as food waste, sewage sludge, and agricultural waste. It is composed primarily of methane and carbon dioxide and can be used to generate electricity or heat.

Overall, biofuels offer a renewable and more sustainable alternative to traditional fossil fuels, helping to reduce greenhouse gas emissions and decrease dependence on non-renewable resources.

Acyclic hydrocarbons, also known as aliphatic hydrocarbons, are organic compounds consisting entirely of hydrogen and carbon atoms. They are characterized by the absence of aromatic rings or cyclic structures in their molecular structure. Instead, they contain open chains of carbon atoms that are saturated (containing only single bonds) or unsaturated (containing double or triple bonds).

Acyclic hydrocarbons can be further classified into several subcategories based on the nature and arrangement of their carbon-carbon bonds. These include:

* Alkanes: saturated acyclic hydrocarbons with only single bonds between carbon atoms (e.g., methane, ethane, propane, butane)
* Alkenes: unsaturated acyclic hydrocarbons containing at least one carbon-carbon double bond (e.g., ethene, propene, butene)
* Alkynes: unsaturated acyclic hydrocarbons containing at least one carbon-carbon triple bond (e.g., ethyne, propyne, butyne)

Acyclic hydrocarbons are important components of fossil fuels such as natural gas, crude oil, and coal. They are also used in the production of a wide range of chemicals, materials, and consumer products, including plastics, synthetic fibers, solvents, and fuels.

Heptanes are a group of hydrocarbons that are composed of straight-chain or branched arrangements of six carbon atoms and are commonly found in gasoline. They are colorless liquids at room temperature with a characteristic odor. In a medical context, exposure to heptanes can occur through inhalation, skin contact, or ingestion, and can cause symptoms such as headache, dizziness, nausea, and irritation of the eyes, nose, and throat. Chronic exposure has been linked to more serious health effects, including neurological damage and cancer. Proper handling and use of heptanes, as well as adequate ventilation, are important to minimize exposure and potential health risks.

Sulfur compounds refer to chemical substances that contain sulfur atoms. Sulfur can form bonds with many other elements, including carbon, hydrogen, oxygen, and nitrogen, among others. As a result, there is a wide variety of sulfur compounds with different structures and properties. Some common examples of sulfur compounds include hydrogen sulfide (H2S), sulfur dioxide (SO2), and sulfonic acids (R-SO3H).

In the medical field, sulfur compounds have various applications. For instance, some are used as drugs or drug precursors, while others are used in the production of medical devices or as disinfectants. Sulfur-containing amino acids, such as methionine and cysteine, are essential components of proteins and play crucial roles in many biological processes.

However, some sulfur compounds can also be harmful to human health. For example, exposure to high levels of hydrogen sulfide or sulfur dioxide can cause respiratory problems, while certain organosulfur compounds found in crude oil and coal tar have been linked to an increased risk of cancer. Therefore, it is essential to handle and dispose of sulfur compounds properly to minimize potential health hazards.

Ribosomal RNA (rRNA) is a type of RNA that combines with proteins to form ribosomes, which are complex structures inside cells where protein synthesis occurs. The "16S" refers to the sedimentation coefficient of the rRNA molecule, which is a measure of its size and shape. In particular, 16S rRNA is a component of the smaller subunit of the prokaryotic ribosome (found in bacteria and archaea), and is often used as a molecular marker for identifying and classifying these organisms due to its relative stability and conservation among species. The sequence of 16S rRNA can be compared across different species to determine their evolutionary relationships and taxonomic positions.

I'm sorry for any confusion, but "Siberia" is not a medical term. It's a geographical region in Russia, known for its harsh, cold climate and vast wilderness. If you have any questions about medical terms or concepts, I'd be happy to help answer those!

Neosartorya is a genus of filamentous fungi that are closely related to Aspergillus. These fungi are commonly found in the environment, particularly in soil and decaying plant material. Some species of Neosartorya can cause invasive infections in humans, particularly in immunocompromised individuals.

Neosartorya species are characterized by their ability to produce a sexual stage (teleomorph) that is distinct from their asexual stage (anamorph). The teleomorph stage is often referred to as the "Aspergillus-like" state, as it resembles the morphology of Aspergillus species. However, Neosartorya species can be distinguished from Aspergillus species by their ability to produce a characteristic orange or red pigment in their conidia (spores).

Infections caused by Neosartorya species are rare but can be serious and difficult to treat. They often present as invasive pulmonary aspergillosis, which is characterized by the growth of fungal hyphae in the lungs and surrounding tissues. Treatment typically involves the use of antifungal medications such as voriconazole or amphotericin B.

I'm sorry for any confusion, but "octanes" is not a medical term. It is a term used in chemistry and physics, particularly in reference to fuel. Octane is a hydrocarbon molecule found in gasoline, and it is used as a measure of the fuel's ability to resist engine knocking or pinging during combustion.

The octane rating of gasoline typically ranges from 87 (regular) to 91-93 (premium). Higher-octane fuels are often recommended for high-performance vehicles that have higher compression ratios in their engines. If you have any questions related to medical terminology, I'd be happy to help!

Micro-Electrical-Mechanical Systems (MEMS) is not a medical term, but rather a technology term that refers to the integration of mechanical elements, sensors, actuators, and electronic components on a single silicon chip through microfabrication technology. MEMS devices are extremely small (typically measured in micrometers or millionths of a meter), and can be found in various consumer products such as accelerometers in smartphones and automobiles, inkjet printheads, and biosensors.

In the medical field, MEMS technology has been used to develop various diagnostic and therapeutic devices, including lab-on-a-chip platforms for point-of-care diagnostics, drug delivery systems, and implantable sensors for monitoring physiological parameters such as glucose levels or blood pressure.

Therefore, while MEMS is not a medical definition itself, it is a technology that has significant applications in the medical field.

I'm sorry for any confusion, but "Wireless Technology" is not a term that has a specific medical definition. Wireless technology generally refers to the transmission of information over a distance without the use of electrical conductors or "wires." It encompasses a wide range of technologies, including cellular networks, Wi-Fi, Bluetooth, and various forms of telecommunication.

However, in a medical context, wireless technology can be used to refer to devices or systems that transmit patient data without the need for physical connections. For example, wireless pulse oximeters, blood glucose monitors, or cardiac event monitors. These devices use wireless technologies to send patient data to a remote monitoring station or to a healthcare provider's electronic health record system. This can provide more flexibility and mobility for patients, and can also improve the efficiency of healthcare delivery.

The term "environment" in a medical context generally refers to the external conditions and surroundings that can have an impact on living organisms, including humans. This includes both physical factors such as air quality, water supply, soil composition, temperature, and radiation, as well as biological factors such as the presence of microorganisms, plants, and animals.

In public health and epidemiology, the term "environmental exposure" is often used to describe the contact between an individual and a potentially harmful environmental agent, such as air pollution or contaminated water. These exposures can have significant impacts on human health, contributing to a range of diseases and disorders, including respiratory illnesses, cancer, neurological disorders, and reproductive problems.

Efforts to protect and improve the environment are therefore critical for promoting human health and preventing disease. This includes measures to reduce pollution, conserve natural resources, promote sustainable development, and mitigate the impacts of climate change.

  • Petroleum, also known as crude oil, or simply oil, is a naturally occurring yellowish-black liquid mixture of mainly hydrocarbons, and is found in geological formations. (wikipedia.org)
  • This fact sheet answers the most frequently asked health questions about total petroleum hydrocarbons (TPH). (cdc.gov)
  • Total petroleum hydrocarbons (TPH) is a term used to describe a large family of several hundred chemical compounds that originally come from crude oil. (cdc.gov)
  • Scientists divide TPH into groups of petroleum hydrocarbons that act alike in soil or water. (cdc.gov)
  • What happens to total petroleum hydrocarbons (TPH) when they enter the environment? (cdc.gov)
  • How might I be exposed to total petroleum hydrocarbons (TPH)? (cdc.gov)
  • How can total petroleum hydrocarbons (TPH) affect my health? (cdc.gov)
  • How likely are total petroleum hydrocarbons (TPH) to cause cancer? (cdc.gov)
  • Is there a medical test to show whether I've been exposed to total petroleum hydrocarbons (TPH)? (cdc.gov)
  • What are total petroleum hydrocarbons? (cdc.gov)
  • Pronounced tt l pí-tr l-ím h¥Àdrí-kär bínz) o TPH may enter the environment through accidents, from Total petroleum hydrocarbons (TPH) is a term used to industrial releases, or as byproducts from commercial or private uses. (cdc.gov)
  • Borders & Southern Petroleum Plc engages in the exploration of hydrocarbons and gas in the Falkland Islands. (annualreports.com)
  • Woodside Petroleum reported $30.22B in Market Capitalization this April of 2022, considering the latest stock price and the number of outstanding shares. (stradanove.net)
  • The name petroleum covers both naturally occurring unprocessed crude oil and petroleum products that consist of refined crude oil. (wikipedia.org)
  • Volume 1 - Final annual data for the supply and disposition of crude oil and petroleum products. (eia.gov)
  • In January 2018 the Petroleum and Other Fuels Reporting Act 2017 came into effect and made the reporting of fuel data mandatory for Australian businesses meeting the reporting criteria. (energy.gov.au)
  • Hindustan Petroleum Corporation has not announced any Stock Split since 2018. (livemint.com)
  • The Journal of Petroleum Technology and Alternative Fuels (JPTAF) is a peer reviewed journal. (academicjournals.org)
  • It is unethical for authors to submit a manuscript to the Journal of Petroleum Technology and Alternative Fuels and at the same time, submit the same manuscript to another journal either within Academic Journals or any other publisher. (academicjournals.org)
  • This monthly publication collects national and state statistical information on sales of petroleum products, exports and imports of petroleum products and crude oil, production of crude oil and condensate, refinery input and output, and stocks of petroleum products. (energy.gov.au)
  • However, while that plunge in crude prices had a significant impact on Occidental Petroleum 's results, the company actually performed rather well. (foxbusiness.com)
  • After all the noise, Occidental Petroleum made money On the surface, Occidental Petroleum reported a pretty abysmal quarter, turning in a loss of $3.42 per share, after taking $2.6 billion in after-tax charges relating to the sharp decline in oil prices. (foxbusiness.com)
  • Investor takeaway Occidental Petroleum found a formula that works, which is to push its production higher while pushing its costs lower. (foxbusiness.com)
  • The article Despite Terrible Oil Prices, Occidental Petroleum Corporation Turned in a Surprising Profit originally appeared on Fool.com. (foxbusiness.com)
  • Occidental Petroleum CEO Vicki Hollub scooped up a chunk of her own company's shares, following Warren Buffett's recent buying spree in the outperforming energy stock. (cnbc.com)
  • Petroleum jelly, also known as soft paraffin, is a semisolid mixture of fatty substances that are made from petroleum. (medlineplus.gov)
  • This article discusses what happens when someone swallows a lot of petroleum jelly or it gets in the eyes. (medlineplus.gov)
  • Petroleum jelly (petrolatum) can be harmful if someone swallows it or it gets in the eyes. (medlineplus.gov)
  • Other products may also contain petroleum jelly. (medlineplus.gov)
  • A large amount of petroleum jelly which gets in the eyes or nose, or is used on the skin, the eyes, nose, or skin may cause irritation of these tissues. (medlineplus.gov)
  • Petroleum jelly is considered nontoxic. (medlineplus.gov)
  • More serious lung problems may result with long-term exposure to inhaled petroleum jelly droplets. (medlineplus.gov)
  • Overseas, petroleum coke is a popular fuel, with exports from the U.S. going in large quantities to China, Brazil, Mexico, and Europe. (nrdc.org)
  • The data series describe production, imports and exports, inter-Petroleum Administration for Defense (PAD) District movements, and inventories by the primary suppliers of petroleum products in the United States. (unt.edu)
  • tags: Dawn dishwashing liquid, television commercial, advertising, oil spill, Gulf of Mexico, BP oil spill, British Petroleum, streaming video Experiments have shown that Dawn dishwashing liquid works best to save oiled wildlife and doesn't burn their tender skin and eyes. (scienceblogs.com)
  • The Tribe's FOIA requests includes all correspondence and communications these governmental entities have had with the Atlantic Richfield Company (ARC), a subsidiary of British Petroleum (BP) and the company responsible for the Anaconda Mine Site and the environmental damage suffered by the Tribe and Mason Valley Community. (prweb.com)
  • An exploration of alternative measures of natural resource scarcity: the case of petroleum resources in the U.S. (peakoil.net)
  • Kea Petroleum (LON:KEA) , the AIM quoted oil and gas exploration group with licences in New Zealand and Australia, has finished moving production equipment to the site of its Wingrove oil discovery in New Zealand's onshore Taranaki Basin. (businessinsider.com)
  • Bankers Petroleum Ltd. is a Canadian-based oil and gas exploration and production company focused on developing large oil and gas reserves. (newswire.ca)
  • Woodside Petroleum Limited (WPL) is an Australian oil and gas company involved in hydrocarbon exploration, evaluation, development, production and marketing. (stradanove.net)
  • While they succeeded in providing a small increase in gasoline yields, it was the commercialization of the fluid catalytic cracking process in 1942 that really established the foundation of modern petroleum refining. (britannica.com)
  • and fluorene, as well as other petroleum products and gasoline o Living in an area near a spill or leak of petroleum components. (cdc.gov)
  • Similarly, petroleum solvents encompass a wide variety of materials derived from crude oil [International Agency for Research on Cancer (IARC) Monograph Working Group 1989], including many that are widely used in the home, such as paint thinner, spot remover, gasoline, kerosene, and lubricating oil. (medscape.com)
  • AUSTIN, Texas , April 14, 2014 /PRNewswire/ -- FieldPoint Petroleum Corporation (NYSE/MKT:FPP) today reported that drilling of the second well in the Ranger Project has been completed ahead of schedule and plans to complete the well are underway. (prnewswire.com)
  • This is big difference between Occidental and a competitor like Whiting Petroleum (NYSE: WLL), which leads the basin in production -- and is doing so becauseWhiting's acreage is in the sweet spot of that play, meaning there is more oil saturating the rocks beneath its acreage. (foxbusiness.com)
  • Crude oil is used to make petroleum products, which can contaminate the environment. (cdc.gov)
  • Because there are so many different chemicals in crude oil and in other petroleum products, it is not practical to measure each one separately. (cdc.gov)
  • Working in occupations that use petroleum products. (cdc.gov)
  • Living in an area near a spill or leak of petroleum products. (cdc.gov)
  • to make petroleum products, which can contaminate the envi o Some TPH fractions will float on the water and form sur ronment. (cdc.gov)
  • crude oil and in other petroleum products, it is not practical to o Other TPH fractions will sink to the bottom sediments. (cdc.gov)
  • Data are presented which describe the supply and disposition of petroleum products in the United States and major U.S. geographic regions. (unt.edu)
  • Miscellaneous refined petroleum products. (indexmundi.com)
  • The Petroleum Refining 101 course is designed to teach the fundamentals of refining technology, starting with the history of refining and diving into crude oil basics, petroleum products, product pricing, configurations, and more. (euci.com)
  • The subtitle for Petroleum Engineering 101 at Stanford University reads "How to dig oil wells," and that is for the most part what a petroleum engineer does. (princetonreview.com)
  • WASHINGTON, D.C. - Representing the independent producers that develop 90 percent of America's oil and natural gas wells, Independent Petroleum Association of America (IPAA) President and CEO Barry Russell in a letter praised the House Committee on Natural Resources for advancing smart, thoughtf. (ipaa.org)
  • Extraction, refining and burning of petroleum fuels all release large quantities of greenhouse gases, so petroleum is one of the major contributors to climate change. (wikipedia.org)
  • The journal is published per article and covers all areas of the subject such as alternate fuels on ignition engine, oil recovery from petroleum sludge, e nvironmental importance of alternate fuel, f uel extraction and purification, h ydraulic fracturing and o il shale technology. (academicjournals.org)
  • The other is the alkyd paints or oil-based resin paints, in which the solvent is usually petroleum-based and organic, such as toluene or xylene. (medscape.com)
  • Profile information for Woodside Petroleum Limited : Equity profile information Market Cap(million) $29,320.27m : Beta-0.14 : RiskGrade: n/a : Woodside Petroleum Limited The official website for Woodside Petroleum is Dividends. (stradanove.net)
  • How often does Woodside Petroleum pay dividends? (stradanove.net)
  • Below are the main rubriks (i.e strongest indications or symptoms) of Petroleum in traditional homeopathic usage , not approved by the FDA. (abchomeopathy.com)
  • LPG workers at Gaza Strip petroleum stations are at higher risk for health-related symptoms and clinical abnormalities. (who.int)
  • Industries with the highest published employment and wages for Petroleum Engineers are provided. (bls.gov)
  • For a list of all industries with employment in Petroleum Engineers, see the Create Customized Tables function. (bls.gov)
  • LSU is the only university in North America where future petroleum engineers can get hands-on training in well control by working at a full-scale well control research and training facility. (lsu.edu)
  • But despite the frustrations that go with the turf, petroleum engineers seem to enjoy being out in the field, where they can get their hands dirty. (princetonreview.com)
  • Some petroleum engineers do work in offices, however, analyzing the reports and recommendations of field engineers and advising corporate decision-makers on whether to proceed. (princetonreview.com)
  • Petroleum engineers have rigorous academic requirements. (princetonreview.com)
  • Many states require practicing petroleum engineers to pass a state licensing exam. (princetonreview.com)
  • forum483 - Professional forum and technical support for engineers for Petroleum refining engineering. (eng-tips.com)
  • Add Anadarko Petroleum to My Watchlist. (aol.com)
  • Only a handful of universities in the U.S. offer programs that focus on petroleum engineering, with coursework in such subjects as geology, geophysics, chemistry, fluid dynamics, and physics. (princetonreview.com)
  • Production of petroleum is estimated to reach peak oil before 2035 as global economies lower dependencies on petroleum as part of climate change mitigation and a transition towards renewable energy and electrification. (wikipedia.org)
  • The Occupational Safety and Health Administration has nervous system, liver, and kidney from exposure to TPH com set an exposure limit of 500 parts of petroleum distillates per pounds. (cdc.gov)
  • Investors will be hoping for strength from Marathon Petroleum as it approaches its next earnings release, which is expected to be October 31, 2023. (yahoo.com)
  • In that report, analysts expect Marathon Petroleum to post earnings of $6.62 per share. (yahoo.com)
  • When is Ignis Petroleum Group (OTCEM:IGPG) reporting earnings? (benzinga.com)
  • From a climate change perspective, burning petroleum coke results in more CO2 than most forms of coal. (nrdc.org)
  • It is also important to note the recent changes to analyst estimates for Marathon Petroleum. (yahoo.com)
  • The Petroleum Engineering Research & Technology Transfer, or PERTT, Laboratory - also commonly referred to as the "Well Facility" - is an industrial-scale facility with full-scale equipment and instrumentation for conducting training and research related to borehole technology. (lsu.edu)
  • Petroleum: possibilities in the pipeline. (nih.gov)
  • Valuation is also important, so investors should note that Marathon Petroleum has a Forward P/E ratio of 6.8 right now. (yahoo.com)
  • A fossil fuel, petroleum is formed when large quantities of dead organisms, mostly zooplankton and algae, are buried underneath sedimentary rock and subjected to both prolonged heat and pressure. (wikipedia.org)
  • But the new influx of vast quantities of petroleum coke threatens that vision, sending billowing clouds of black dust into homes and gardens on windy days. (nrdc.org)
  • Petroleum production can be extremely profitable and was critical to global economic development in the 20th century, with some countries, so-called "oil states", gaining significant economic and international power because of their control of oil production. (wikipedia.org)
  • Publication date: 2010-03-03 First published in: Geoforum Authors: E. Hemmingsen Abstract: M. King Hubbert's 1956 prediction of a 'peak' in US oil production has spurred a durable and divisive debate on the exhaustion of the petroleum resource. (peakoil.net)
  • Increased production of the most carbon-intensive petroleum on the planet is having profound impacts on natural landscapes and the people who are deeply connected to them , as well as the refining sector. (nrdc.org)
  • Dr. Mukul Sharma, Professor in Dept. of Petroleum and Geosystems Engineering at the University of Texas at Austin is seeking to fill two Postdoctoral Positions. (imechanica.org)
  • Because it can't earn returns on par with what rivals like Whiting Petroleum are enjoying, it's choosing to walk away and use the cash from that sale to bolster its more profitable operations. (foxbusiness.com)
  • Petroleum is used in manufacturing a vast variety of materials essential for modern life, and it is estimated that the world consumes about 100 million barrels (16 million cubic metres) each day. (wikipedia.org)
  • 3 These Regulations apply to the stationary bulk storage facilities for liquefied petroleum gases on the right-of-way owned or leased by any railway company subject to the jurisdiction of the Commission. (gc.ca)
  • The book treats in a consistent manner the key aspects related to the development of petroleum resources in order to allow an interdisciplinary view of the topics included in petroleum projects and to identify the optimal development solution. (wessex.ac.uk)
  • He has been with Muse since 2003 and is also a Director of Muse's Singapore affiliate, Muse, Stancil & Co (Asia), PTE, LTD. During his career, Mr. McGreevy has held various positions that encompass many of the technical/managerial functions found in the downstream sector of the petroleum industry. (euci.com)
  • Being from Ohio, I wanted to pick a school that was surrounded by the petroleum industry", said LSU petroleum engineering student Candice Miller. (lsu.edu)
  • What sector and industry does Ignis Petroleum Group (IGPG) operate in? (benzinga.com)
  • Buhari assented to the so-called Petroleum Industry Bill on Monday, a month after it was voted through by both chambers of the National Assembly, presidential spokesperson Femi Adesina said in an e-mailed statement. (iafrica.com)
  • Mr. Tod McGreevy has 30 years of industry experience and a diverse background in petroleum refining and manufacturing. (euci.com)
  • ABSTRACT Liquefied petroleum gas (LPG) is widely used in the Gaza Strip for domestic purposes, in agriculture and industry and, illegally, in cars. (who.int)
  • BHP Group (BHP) and Woodside Petroleum Ltd (Woodside) have today signed a binding share sale agreement (SSA) for the merger of BHPs oil and gas portfolio with Woodside Current Price: $31.84. (stradanove.net)
  • Woodside Petroleum Limited (WPL) - Share Price and Research. (stradanove.net)
  • The Energy Program uses a total petroleum systems approach to evaluate the probable presence of undiscovered, subsurface accumulations of oil and natural gas resources in the U.S. and around the world. (martindalecenter.com)
  • Total petroleum hydrocarbon (TPH) degradation percentage by V. rosea after a 5-month growth period ranged from 86.83 ± 0.44% to 59.05% ± 0.45% in soil treated with 1 and 7%, respectively. (bvsalud.org)
  • Market Cap: 198.181B: Beta (5Y Monthly) Petroleum assets are likely to be spun off and merged with Woodside. (stradanove.net)
  • This makes Woodside Petroleum the world's 828th most valuable company by market cap according to our data. (stradanove.net)
  • Change in Woodside Petroleum Ltd Market Capitalization: A$32.80 Billion. (stradanove.net)
  • The Primary metrics and data points about Woodside Petroleum Ltd.. Market Cap: $62B. (stradanove.net)
  • ASX Rank: 8 of 2,423: Sector Rank: Woodside Energy Group Ltd (WDS , formerly Woodside Petroleum Ltd ) is an Market Cap Excludes mandatory escrowed shares and foreign shares. (stradanove.net)
  • Koya University is one of the four institutions in the whole of Iraq with outstanding Petroleum, Chemical and Geotechnical Engineering Departments and hence it was the ideal location for the conference. (wessex.ac.uk)
  • The second part of the seminar was given by Dr Kjell Traa, who has had a long and distinguished career in petroleum engineering. (wessex.ac.uk)
  • If you're into engineering and gambling, petroleum engineering is for you," wrote another. (princetonreview.com)
  • The University of Houston's petroleum engineering program - started in 2009 with just 20 undergraduate students - has been elevated to a full department within the UH Cullen College of Engineering. (uh.edu)
  • With 968 undergraduate students, it is one of the largest petroleum engineering departments in the nation. (uh.edu)
  • Joseph Tedesco, dean of the Cullen College of Engineering, said UH petroleum engineering graduates will help to define the energy future. (uh.edu)
  • The University of Houston is the nation's Energy University, and the establishment and success of its petroleum engineering department is vital to the future of the city of Houston, where the demand for engineering talent is higher than in any other major U.S. city," he said. (uh.edu)
  • UH Petroleum Engineering graduates are the next-generation of global, entrepreneurial energy leaders. (uh.edu)
  • In addition, a Ph.D. program in petroleum engineering was approved in April by the Texas Higher Education Coordinating Board. (uh.edu)
  • Holley said demand for petroleum engineering degrees remains high, even with lingering low oil prices, with enrollment about 150 students higher than last year. (uh.edu)
  • The streets of Baghdad were paved with tar, derived from petroleum that became accessible from natural fields in the region. (wikipedia.org)
  • WASHINGTON, D.C. - In response to the Senate Committee on Energy and Natural Resources' hearing this week to consider the confirmation of Rep. Deb Haaland as Secretary of the Department of Interior, the Independent Petroleum Association of America (IPAA) released the following sta. (ipaa.org)
  • Marathon Petroleum is holding a Zacks Rank of #3 (Hold) right now. (yahoo.com)
  • Petroleum Supply Monthly available on this site. (unt.edu)
  • A petroleum engineer usually works for a petroleum company in various capacities. (princetonreview.com)
  • 6 No person shall begin the construction of storage facilities for liquefied petroleum gases without leave of the Commission granted upon an application made therefor through the railway company concerned. (gc.ca)
  • Mike Sommers, CEO of American Petroleum Institute, attributed some of the tightness in oil and gas markets to low inventories and concerns over OPEC's decisions. (cnbc.com)
  • The American Petroleum Institute (API) is pleased to provide written comments regarding OECD activities to increase the utility and update of adverse outcome pathways (AOPs) in regulatory contexts across countries. (nih.gov)
  • Is Anadarko Petroleum the right energy stock for you? (aol.com)
  • Dear Secretary Zinke: The Independent Petroleum Association of America (IPAA) is dedicated to supporting and promoting the safe and responsible development of our nation's abundant energy resources. (ipaa.org)
  • In addition, the Chinese were the first to record the use of petroleum as fuel as early as the fourth century BCE. (wikipedia.org)
  • means an installation comprising a liquefied petroleum gas heating appliance and attendant fuel storage and distribution systems, the purpose of which is to prevent the failure of a railway track switch due to snow or ice. (gc.ca)
  • Petroleum exploitation can be damaging to the environment and human health. (wikipedia.org)
  • 142.1 (1) Subject to subsection (2), any person may, for the purpose of exploring for or exploiting petroleum, enter on and use any portion of the offshore area in order to carry on a work or activity authorized under paragraph 142(1)(b). (gc.ca)