• This fact sheet answers the most frequently asked health questions (FAQs) about polycyclic aromatic hydrocarbons (PAHs). (cdc.gov)
  • Polycyclic aromatic hydrocarbons (PAHs) are a group water after a period of weeks to months. (cdc.gov)
  • Many polycyclic aromatic hydrocarbons (PAHs) have toxic, mutagenic, and/or carcinogenic properties. (springer.com)
  • Behera BK, Das A, Sarkar DJ, Weerathunge P, Parida PK, Das BK, Thavamani P, Ramanathan R, Bansal V (2018) Polycyclic Aromatic Hydrocarbons (PAHs) in inland aquatic ecosystems: perils and remedies through biosensors and bioremediation. (springer.com)
  • Polycyclic aromatic hydrocarbons (PAHs) have endocrine disrupting properties and they cross the placental barrier, but studies on gestational exposure and child anthropometry are inconclusive. (lu.se)
  • Food can be contaminated by PAHs because of the contamination of air, water or soil, and during industrial process, as heating, drying and Polycyclic aromatic hydrocarbons (PAHs) are a group of over 200 smoking process. (bvsalud.org)
  • Ecological and health risk assessments of polycyclic aromatic hydrocarbons (PAHs) in soils around a petroleum refining plant in China: A quantitative method based on the improved hybrid model. (bvsalud.org)
  • Polycyclic aromatic hydrocarbons (PAHs) are extensively released into the environment by petroleum refining activities, predominantly affecting soil as a major reservoir . (bvsalud.org)
  • HIGHLIGHTS: Exposure to polycyclic aromatic hydrocarbons usually occurs by breathing air contaminated by wild fires or coal tar, or by eating foods that have been grilled. (cdc.gov)
  • Classifying Polycyclic Aromatic Hydrocarbons by Carcinogenic Potency Using In Vitro Biosignatures [ Abstract Classifying Polycyclic Aromatic Hydrocarbons by Carcinogenic Potency Using In Vitro Biosignatures ] [ Synopsis Classifying Polycyclic Aromatic Hydrocarbons by Carcinogenic Potency Using In Vitro Biosignatures ] Chang Y, Huynh CTT, Bastin KM, Rivera BN, Siddens LK, Tilton SC. (nih.gov)
  • This CSEM focuses on the toxicity of polycyclic aromatic hydrocarbons. (cdc.gov)
  • Two versions of the Toxicity of Polycyclic Aromatic Hydrocarbons CSEM are available. (cdc.gov)
  • The HTML version https://www.atsdr.cdc.gov/csem/polycyclic-aromatic-hydrocarbons/cover-page.html provides content through the Internet. (cdc.gov)
  • Take the Initial Check to assess your current knowledge about the toxicity of polycyclic aromatic hydrocarbons. (cdc.gov)
  • Abdel-Shafy HI, Mansour MSM (2016) A review on polycyclic aromatic hydrocarbons: source, environmental impact, effect on human health and remediation. (springer.com)
  • Aromatic hydrocarbons , also known as arenes , which are hydrocarbons that have at least one aromatic ring . (wikipedia.org)
  • 10% of total nonmethane organic carbon emission are aromatic hydrocarbons from the exhaust of gasoline-powered vehicles. (wikipedia.org)
  • The term 'aliphatic' refers to non-aromatic hydrocarbons. (wikipedia.org)
  • Hydrocarbons can be classified as being aliphatic, in which the carbon moieties are arranged in a linear or branched chain, or aromatic, in which the carbon moieties are arranged in a ring. (medscape.com)
  • Halogenated hydrocarbons are a subgroup of aromatic hydrocarbons, in which one of the hydrogen molecules is substituted by a halogen group. (medscape.com)
  • Unlike the aromatic or aliphatic hydrocarbons, the halogenated hydrocarbons tend to cause a wider range of toxicity. (medscape.com)
  • Hey, guys, look at this last section dealing with the fourth type of hydrocarbon aromatic hydrocarbons. (pearson.com)
  • The toxicity of petroleum hydrocarbons, both aliphatic and aromatic, is variable, but in general, those of lower molecular weight exert acute toxicity (Lawal 2017). (springer.com)
  • These groups are called petroleum hydrocarbon fractions. (cdc.gov)
  • No reviews were found for Petroleum Hydrocarbon Analysis Services . (environmental-expert.com)
  • The molecular analysis of 16S rRNA genes revealed that different microbial communities are involved in the degradation of different groups of petroleum hydrocarbon in oil sands tailings. (actapress.com)
  • The Environment Agency is calling for views on its proposed approach to assessing the human health risks from petroleum hydrocarbon contaminated soils. (edie.net)
  • The Agency publication underlines that petroleum hydrocarbon contamination is complex. (edie.net)
  • Toxicity from hydrocarbon ingestion can affect many different organs, but the lungs are the most commonly affected. (medscape.com)
  • The chemical properties of the individual hydrocarbon determine the specific toxicity, while the dose and route of ingestion affect which organs are exposed to the toxicity. (medscape.com)
  • The toxicity of hydrocarbons is directly related to their physical properties, specifically the viscosity, volatility, surface tension, and chemical activity of the side chains. (medscape.com)
  • The amount of hydrocarbon ingested has not consistently been linked to the degree of aspiration and hence pulmonary toxicity. (medscape.com)
  • Toxicity from hydrocarbon exposure can be thought of as different syndromes, depending on which organ system is predominately involved. (medscape.com)
  • Two primary organ systems are affected by inhalation hydrocarbon toxicity: the CNS and the cardiopulmonary system. (medscape.com)
  • Hydrocarbons, if ingested in large amounts, may be absorbed systemically and cause central nervous system (CNS) or hepatic toxicity, which is more likely with halogenated hydrocarbons (eg, carbon tetrachloride, trichloroethylene). (msdmanuals.com)
  • The 2022 conference marks the 10th GRC on Biogenic Hydrocarbons and the Atmosphere since the first conference in 2000. (grc.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)
  • 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)
  • The study indicated that acid activated clays, organoclays, untreated kaolinite, K-bentonite, Zn-bentonite and Cr-bentonite were inhibitory to biodegradation of the hydrocarbons, via different mechanisms, whereas Ca-bentonite and Fe-bentonite were stimulatory to biodegradation with about 80% removal of the total petroleum hydrocarbons (TPH) due to biodegradation. (bl.uk)
  • Pulmonary complications, especially aspiration, are the most frequently reported adverse effect of hydrocarbon exposure. (medscape.com)
  • The Agency adds: "Yet sound, defensible and practical decisions are required on how to manage the risks to human health from exposure to petroleum hydrocarbons in soil. (edie.net)
  • Inhalation injury due to hydrocarbons can occur as a result of either accidental or intentional exposure. (medscape.com)
  • If patients are too obtunded to provide a history, hydrocarbon exposure may be suspected if their breath or clothing has an odor or if a container is found near them. (msdmanuals.com)
  • While most aliphatic hydrocarbons have little GI absorption, aspiration frequently occurs, either initially or in a semidelayed fashion as the patient coughs or vomits, thereby resulting in pulmonary effects. (medscape.com)
  • In organic chemistry , a hydrocarbon is an organic compound consisting entirely of hydrogen and carbon . (wikipedia.org)
  • In this process, the photo-catalyst material has some unique properties and acts as a semiconductor, absorbing the sunlight which excites the electrons in the semiconductor and gives them the electric potential to reduce water and CO2 into carbon monoxide and hydrogen, which together can be converted to liquid hydrocarbon fuels. (electrochem.org)
  • After ingestion of even a very small amount of liquid hydrocarbon, patients initially cough, choke, and may vomit. (msdmanuals.com)
  • The recreational use of inhaling hydrocarbons and other volatile solvents for the purposes of creating a euphoric state is becoming increasingly common. (medscape.com)
  • The mature fine tailings (MFT) were collected from Syncrude Canada Ltd. and Shell Albian Sands tailings ponds and investigated for methanogenic biodegradation of solvent hydrocarbons that are used in the bitumen extraction process and the residual fractions of these solvents that are present in the tailings deposited in the tailings ponds. (actapress.com)
  • The majority of intoxication reports of hydrocarbons are due to inhalation or ingestion, but a few case reports have described intravenous ingestion of gasoline for suicide. (medscape.com)
  • Hydrocarbon poisoning may result from ingestion or inhalation. (msdmanuals.com)
  • The consultation document - Principles for Evaluating the Human Health Risks from Petroleum Hydrocarbons in Soils: A Consultation Paper - is available via the Agency - or from the MRC Institute for Environment and Health. (edie.net)
  • TPH is a mixture of chemicals, but they are all made mainly from hydrogen and carbon, called hydrocarbons. (cdc.gov)
  • Are hydrocarbons organic or inorganic molecules? (answers.com)
  • All of the rotational spectral lines observed and reported in the open literature for 91 hydrocarbon molecules have been tabulated. (nist.gov)
  • Hydrocarbons are a heterogeneous group of organic substances that are primarily composed of carbon and hydrogen molecules. (medscape.com)
  • The formula for acyclic saturated hydrocarbons (i.e., alkanes ) is C n H 2 n +2 . (wikipedia.org)
  • Our laboratory experiments have shown that only short-chain n -alkanes (C 6 -C 10 ) and certain monoaromatics (BTEX) present in C 3 -C 14 range hydrocarbons entrained in Syncrude tailings are readily biodegraded by the indigenous microorganism in the tailings ponds to produce methane. (actapress.com)
  • saturated alkanes or hydrocarbons are the major constituents of petroleum-derived products (Widdel and Rabus 2001). (springer.com)
  • Inhalant abuse, the deliberate inhalation of hydrocarbons as a form of recreational drug use, has become a significant health issue affecting children. (medscape.com)
  • Death from intentional inhalation of hydrocarbon fumes is not uncommon and is usually due to sudden cardiac events or CNS depression. (medscape.com)
  • Deliberate inhalation of volatile hydrocarbons for their mood-altering effects is popular among adolescents. (medscape.com)
  • Recreational abuse of hydrocarbons by inhalation is accomplished in 3 ways: sniffing, huffing, and bagging. (medscape.com)
  • The role of clays in hydrocarbon removal was investigated in aqueous clay/oil microcosm experiments with a hydrocarbon degrading microorganism community. (bl.uk)
  • Adsorption of hydrocarbons was significant during biodegradation especially with unmodified palygorskite, Zn-bentonite and K-bentonite as each of them caused more than 40% removal of TPH by adsorption in the experimental microcosm containing 5:1 ratio (w/w) of clay to oil. (bl.uk)
  • However, their role during the biodegradation of crude oil hydrocarbons is not well understood. (bl.uk)
  • The 'local bridging effect' and polarization of the interlayer water were identified as two opposing influences arising from the interlayer cations of clay minerals that probably determine the extent of biodegradation of the hydrocarbons. (bl.uk)
  • Petroleum distillates include kerosene, gasoline, and naphtha, whereas wood-derived hydrocarbons include turpentine and pine oil. (medscape.com)
  • Crude oil is processed in several stages to form desired hydrocarbons, used as fuel and in other products. (wikipedia.org)
  • The main aim of this research project was to investigate the capabilities of the various forms and types of clay minerals in supporting the microbial degradation of crude oil hydrocarbons so as to gain better understanding of their potential role in the bioremediation of oil polluted sites. (bl.uk)
  • In the fossil fuel industries, hydrocarbon refers to naturally occurring petroleum , natural gas and coal , or their hydrocarbon derivatives and purified forms. (wikipedia.org)
  • In addition, many volatile substances that contain hydrocarbons (eg, glue, propellants) are commonly abused for their euphoric effects. (medscape.com)
  • Most inhalants are composed of several compounds, and almost all pressurized aerosol products can be abused because the propellants are volatile hydrocarbons. (medscape.com)
  • The framework and review information will then be combined to derive Soil Guideline Values (contaminant concentrations in soil designed to protect human health) for petroleum hydrocarbons, exceedance of which will require further investigation or remediation. (edie.net)
  • Separator vessels and coalescers stabilise the crude and remove any sediments, produced water and allow light hydrocarbons to flash-off. (wikipedia.org)
  • Since 2001, The US Consumer Product Safety Commission has required child-resistant packing of products that have low viscosity and contain greater than 10% hydrocarbon by weight. (medscape.com)
  • Saturated hydrocarbons are the basis of petroleum fuels and may be either linear or branched species. (wikipedia.org)
  • A team of researchers from Texas A&M University is looking to take the negative impact of excessive levels of carbon dioxide in the atmosphere and turn it into a positive with renewable hydrocarbon fuels. (electrochem.org)
  • Lidar measurements of hydrocarbons are complicated by the abundance of several species with overlapping absorption features. (lu.se)
  • Onshore, when used in relation to hydrocarbons, refers to an oil, natural gas or condensate field that is under the land or to activities or operations carried out in relation to such a field. (wikipedia.org)
  • Hydrocarbons with the same molecular formula but different structural formulae are called structural isomers . (wikipedia.org)
  • Some 23 Iranian hydrocarbon fields lie in border areas and are shared between Iran and adjacent countries, including Kuwait, Iraq, Qatar, Bahrain, the UAE, Saudi Arabia and Turkmenistan. (presstv.ir)
  • The hydrocarbon dewpoint changes with the prevailing ambient temperature, the seasonal variation is: Petroleum refining processes Oil refinery Oil terminal Gas Processors Suppliers Association (2004). (wikipedia.org)
  • Combustion of hydrocarbons is the main source of the world's energy. (wikipedia.org)
  • The statement calls for a transition away from hydrocarbon energy and a move to a low-carbon economy. (illinoisfamily.org)
  • Energy Minister Giorgos Stathakis has floated the idea of the state retaining majority or even full control of the company to which Hellenic Petroleum (HELPE) will transfer the hydrocarbon surveying and utilization rights conceded to it. (ekathimerini.com)
  • As hydrocarbon recovery becomes more difficult and energy intensive with time, it may be preferable to replace some existing 'disadvantaged' fields with new 'advantaged' hydrocarbons, implying the supply gap may be underestimated. (findingpetroleum.com)
  • Energy strategy at a national and global level must account for the large demand for hydrocarbons in coming decades and exploration and production companies need to align with the advantaged hydrocarbon paradigm. (findingpetroleum.com)
  • Such processes may include glycol dehydration, gas sweetening, hydrocarbon dew-point control, fractionation, natural gas liquids (NGL) recovery, gas compression before gas distribution to users. (wikipedia.org)
  • The Chairman of the Uzbekneftegaz JSC Board also examined the ongoing work on the introduction of digital technologies, digitization of hydrocarbon deposits and automation of production processes. (trend.az)
  • European-built trucks are to also use hydrocarbons: In addition to the use of hydrocarbons in the "OKA" brand of 4WD vehicles, the entire line of European-built AVIA trucks, distributed by Reymer Pty Ltd., will shortly go on sale and will also be equipped with HyChill hydrocarbon refrigerants. (iifiir.org)
  • : 620 Hydrocarbons are examples of group 14 hydrides . (wikipedia.org)