• Polycyclic aromatic hydrocarbons (PAHs) are a group of over 100 different chemicals that are formed during the incomplete burning of coal, oil and gas, garbage, or other organic substances like tobacco or charbroiled meat. (cdc.gov)
  • examples include polychlorinated biphenyls (PCBs), dioxins , and polycyclic aromatic hydrocarbons (PAHs). (britannica.com)
  • A sensitive and reliable method for determination of polycyclic aromatic hydrocarbons (PAHs) in grilled meat samples was developed and validated. (who.int)
  • In this work, a two-phase hollow fiber liquid-phase microextraction (HF-LPME) method combined with gas chromatography-mass spectrometry (GC-MS) is developed to provide a rapid, selective and sensitive analytical method to determine polycyclic aromatic hydrocarbons (PAHs) in fresh milk. (who.int)
  • The trigger for environmentally-caused asthma are chemicals called polycyclic aromatic hydrocarbons (PAHs). (zdnet.com)
  • Many polycyclic aromatic hydrocarbons (PAHs) are found in these sealants. (cdc.gov)
  • The morphologies of heterogeneous clusters of polycyclic aromatic hydrocarbons (PAHs) are investigated using molecular modelling. (ntu.edu.sg)
  • Oil has several different chemical components, including hydrocarbons such as harmful polycyclic aromatic hydrocarbons (PAHs) . (alive.com)
  • Two chemicals, polycyclic aromatic hydrocarbons (PAHs) and heterocyclic amines (HCAs), develop naturally when cooking meat. (cancer.net)
  • Studying these chemicals in humans is particularly difficult because it is hard to pinpoint the exact amount of PAHs or HCAs that a person consumes based on questionnaires about their daily food intake. (cancer.net)
  • This view is supported by research demonstrating that they contain toxic chemicals within their structure and also adsorb additional chemicals, including polychlorinated biphenyls (PCBs), pesticides, metals, and polycyclic aromatic hydrocarbons (PAHs), from the environment. (researchgate.net)
  • Benzo(a)pyrene (BaP) is a compound in a group of chemicals called polycyclic aromatic hydrocarbons (PAHs). (chej.org)
  • Polycyclic aromatic hydrocarbons (PAHs) are chemicals that are released into the environment during activities of the petroleum industry. (researchgate.net)
  • An investigation into the exhaust emissions of carcinogenic polycyclic aromatic hydrocarbons (PAHs) from a diesel engine was reported. (ucl.ac.uk)
  • The issue Polycyclic aromatic hydrocarbons (PAHs) are a group of chemical compounds formed during the incomplete combustion of organic material. (safeworkaustralia.gov.au)
  • 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)
  • PAHs were found in different foodstuffs, including different organic compounds with two or more fused aromatic rings vegetables, fruit, cereals, oils and fats, smoked fish and meat, coffee and ( Domingo & Nadal, 2015 ). (bvsalud.org)
  • This study investigated the effects of different temperatures (140, 165, and 190 °C) and types of the vegetable frying oil ( soybean , corn , canola, and palm oils ) on the formation of volatile profiles and hazardous compounds [ polycyclic aromatic hydrocarbons (PAHs) and acrylamide ] in Welsh onion . (bvsalud.org)
  • A polycyclic aromatic hydrocarbon (PAH) is a class of organic compounds that is composed of multiple aromatic rings. (wikipedia.org)
  • The simplest representative is naphthalene, having two aromatic rings, and the three-ring compounds anthracene and phenanthrene. (wikipedia.org)
  • Phenolic compounds, polycyclic aromatic hydrocarbons and drugs have also been reported in e-cigarette refill solutions, cartridges and aerosols. (bmj.com)
  • I learned about chemical fate and transport-which is just a fancy way of saying what compounds are likely to do when they are released into the world. (creativenonfiction.org)
  • Specific volatile chemical groups such as aldehydes , sulfur -containing compounds, and furans /furanones were major volatiles in Welsh onion fried (WOF). (bvsalud.org)
  • Atmospheric concentrations of flame retardants, polycyclic aromatic hydrocarbons, and pesticides were measured using passive air samplers equipped with polyurethane foam disks to find spatial information in and around Chicago, Illinois. (uiowa.edu)
  • To determine whether the air toxics included in USEPA's National-Scale Air Toxics Assessment (NATA) could be a potential human health problem in New Jersey, NJDEP compares the estimated NATA air concentrations to their chemical-specific health benchmarks. (nj.gov)
  • By definition, polycyclic aromatic hydrocarbons have multiple rings, precluding benzene from being considered a PAH. (wikipedia.org)
  • According to Clar's rule, the resonance structure of a PAH that has the largest number of disjoint aromatic pi sextets-i.e. benzene-like moieties-is the most important for the characterization of the properties of that PAH. (wikipedia.org)
  • Benzene-substructure resonance analysis for Clar's rule Phenanthrene Anthracene Chrysene For example, phenanthrene has two Clar structures: one with just one aromatic sextet (the middle ring), and the other with two (the first and third rings). (wikipedia.org)
  • The research team will use scientifically established approaches to understand the types of health problems community members are experiencing, and how these conditions may be linked to exposure to chemicals found in coke oven emissions, such as benzene and polycyclic aromatic hydrocarbons. (buffalo.edu)
  • In a truly cross-disciplinary research project encompassing surface science, astrophysics and chemistry we aim to address two of the major outstanding questions in the field of astrochemistry, namely i) how molecular hydrogen, the most abundant molecule in the interstellar medium, form, and ii) whether it is possible to identify specific Polycyclic Aromatic Hydrocarbon (PAH) species in interstellar spectra. (europa.eu)
  • 2] In addition, production of asphalt releases hazardous chemicals such as polycyclic aromatic hydrocarbons, hydrogen sulfide, lead, and copper into the environment exposing fenceline communities to a wide array of chemicals that can impact their health. (healthybuilding.net)
  • Family history, some chemical exposures, and immune dysfunction conditions can also create a greater risk of developing skin cancer. (cchst.ca)
  • Join us to hear Dr. Kim Anderson discuss the use of silicone wristbands to assess personal chemical exposures. (healthandenvironment.org)
  • Dr. Anderson, Department of Environmental and Molecular Toxicology at Oregon State University, has long been a pioneer in the use of silicone wristbands to assess multiple chemical exposures to individuals from a wide range of communities and geographical areas. (healthandenvironment.org)
  • Although chemical exposures varied among individuals, many individuals were exposed to similar chemical mixtures. (healthandenvironment.org)
  • Other studies designed and implemented by Dr. Anderson and her staff include assessing chemicals exposures to firefighters during deployment to structural fires, and to individuals living in the aftermath of Hurricane Harvey. (healthandenvironment.org)
  • Please join this webinar to learn more about those chemicals tested within the three geographical areas, and the silicone wristband capacity to capture exposures from multiple chemical classes, critical to the understanding of the links between real-world chemical exposures and health effects. (healthandenvironment.org)
  • To capture a more complete picture of how various environmental exposures have affected the health of the communities studied, the research will seek to understand the communities' past exposure to chemical pollution through not only coke oven emissions but also through other sources, such as traffic emissions. (buffalo.edu)
  • 2018. Occurrence, distribution and composition of aliphatic and polycyclic aromatic hydrocarbons in sediment cores from the Lower Fox River, Wisconsin, US. (nih.gov)
  • Consumer product-related chemicals and phthalates were a high percentage of chemical detections across all study locations. (healthandenvironment.org)
  • a b Karl Griesbaum, Arno Behr, Dieter Biedenkapp, Heinz-Werner Voges, Dorothea Garbe, Christian Paetz, Gerd Collin, Dieter Mayer, Hartmut Höke "Hydrocarbons" in Ullmann's Encyclopedia of Industrial Chemistry 2002 Wiley-VCH, Weinheim. (wikipedia.org)
  • In addition, bentonite sheet waterproofing has the fewest hazardous chemicals associated with manufacture and installation of the materials considered. (healthybuilding.net)
  • Thermoplastic sheet waterproofing made without polyvinyl chloride (PVC) typically requires fewer hazardous chemicals to manufacture and contains less hazardous content. (healthybuilding.net)
  • These products contain respiratory sensitizers, and other hazardous chemicals including carcinogens and developmental and reproductive toxicants . (healthybuilding.net)
  • Conventional chemical fungicides and plastic prevent fungal diseases but they are hazardous to humans and the environment. (researchgate.net)
  • Objective To review the available evidence evaluating the chemicals in refill solutions, cartridges, aerosols and environmental emissions of electronic cigarettes (e-cigarettes). (bmj.com)
  • The aim of the present work is to go further by investigating the sorption mechanism of polycyclic aromatic hydrocarbons (exemplified by phenanthrene) on cork and the availability of the chemical components (i.e. lignin, suberin, holocellulose and extractives) to retain phenanthrene. (nih.gov)
  • The modeling study showed that the lignin-phenanthrene interaction is mostly hydrophobic in nature being largely determined by the π-stacking interaction between the aromatic groups of the interacting partners. (nih.gov)
  • The Organic Analytical Toxicology Branch develops and performs unique laboratory tests to measure organic environmental chemicals in people. (cdc.gov)
  • National Report on Human Exposure to Environmental Chemicals - Provides an ongoing assessment of the exposure of the U.S. population to environmental chemicals using biomonitoring. (cdc.gov)
  • As indicated in the Environmental Reporting and Disclosure Bylaw, Toronto Public Health has identified 25 priority substances (chemicals) that are in Toronto's air environment at levels that are of concern for health. (toronto.ca)
  • As an environmental scientist and strategic advisor on environmental issues, Dr Boehm has conducted investigations for, consulted with, and advised industrial, legal, and government clients on scientific matters involving regulatory issues and legal claims associated with chemical contaminants in the environment. (exponent.com)
  • His practice also directly involves the environmental fate and transport of chemicals as well as exposure and impact assessment. (exponent.com)
  • Another chemical called acrylamide develops naturally when baking, roasting, or frying potatoes or other plant-based foods at a high temperature. (cancer.net)
  • Acrylamide is a chemical formed when sugars react with amino acids in the food that you bake, fry, or roast. (cancer.net)
  • Acrylamide was first identified in food in 2002, and although it probably isn't a new chemical, studies of its health effects have ramped up since then. (cancer.net)
  • Study on Volatile Profiles, Polycyclic Aromatic Hydrocarbons, and Acrylamide Formed in Welsh Onion ( Allium fistulosum L.) Fried in Vegetable Oils at Different Temperatures. (bvsalud.org)
  • pyrolysis , the chemical decomposition of organic ( carbon -based) materials through the application of heat . (britannica.com)
  • Chrysene exposure may occur in the chemical industry during manufacturing of the isolated chemical or during processes which involve the pyrolysis of organic matter. (cdc.gov)
  • cigarettes and plastics are two examples of harmful chemicals impacting the environment in ways we did not intend. (alive.com)
  • While the role of genes in schizophrenia and mental disorders is well established, the effect of toxic chemicals in the environment is only just beginning to emerge. (ens-newswire.com)
  • CHEJ highlights several toxic chemicals and the communities fighting to keep their citizens safe from harm. (chej.org)
  • They also can help us better assess and address the role of skin absorption as a pathway for toxic chemicals to enter the body. (cdc.gov)
  • Together, these studies implicate UGT1A10 as an important detoxifier of polycyclic aromatic hydrocarbons in humans and that the UGT1A10 codon 139 polymorphism may be an important determinant in risk for tobacco-related cancers. (aspetjournals.org)
  • While more studies could be done to better understand the effects of exposure on humans, it is clear ethylbenzene is a biologically dangerous chemical, and there should be protections in place to ensure that people are not exposed to it. (chej.org)
  • Both the particulate and gas phases are mixtures of chemical substances in e-cigarette aerosols. (bmj.com)
  • All these studies open doors to a deeper understanding of trends in personal pollution, prioritize the need to develop protocols to assess those mixtures of chemicals as identified as occurring more frequently within those geographical areas and occupations studied, and demonstrates the effectiveness, convenience and reliability of silicone bracelet analyses as compared to other methods of personal chemical exposure assessments. (healthandenvironment.org)
  • The benzenoid hydrocarbons have been defined as condensed polycyclic unsaturated fully-conjugated hydrocarbons whose molecules are essentially planar with all rings six-membered. (wikipedia.org)
  • He was a postdoctoral research associate of Prof. Dr John Paul Maier, FRS in Basel, Switzerland, where he researched highly unsaturated hydrocarbon molecules of astrophysical relevance. (edu.au)
  • The Honolulu Board of Water Supply said it has detected a small amount of a chemical naturally occurring in coal, crude oil and gasoline in a monitoring well near a Navy fuel storage facility that spilled jet fuel last year. (sandiegouniontribune.com)
  • Acetaldehyde is used as an intermediate in the synthesis of other chemicals. (toronto.ca)
  • Acetaldehyde and formaldehyde concentration estimates include secondary formation, which is the process by which chemicals in the air are transformed into other chemicals. (nj.gov)
  • Informational methods are presented for the measurement of polycyclic aromatic hydrocarbons (PAH) in diesel exhaust particulate samples. (sae.org)
  • This work provides novel insight into the molecular partitioning of heterogeneous aromatic clusters, with particular relevance to the structure of nascent soot particles. (ntu.edu.sg)
  • The European Food Safety Authority has created a methodology to improve risk-based classification of Rapid Alert System for Food and Feed (RASFF) notifications on chemical contaminants. (foodsafetynews.com)
  • Electrochemical Synthesis, Deposition, and Doping of Polycyclic Aromatic Hydrocarbon Films. (mpg.de)
  • What harmful chemicals does tobacco smoke contain? (cancer.gov)
  • Tobacco smoke contains many chemicals that are harmful to both smokers and nonsmokers. (cancer.gov)
  • Among the 250 known harmful chemicals in tobacco smoke, at least 69 can cause cancer. (cancer.gov)
  • Since results on the desorption of chemicals from MPs are not consistent, it is n possible to conclude whether or not POPs desorbed from MPs are always harmful. (researchgate.net)
  • Another two hundred chemicals are known to act as neurological poisons in human adults and are likely toxic to the developing brains of infants and children as well - animal studies strongly suggest that any neurotoxic chemical is likely also a neurodevelopmental toxicant - but scientific confirmation awaits. (orionmagazine.org)
  • Here, learn what these chemicals are, how they can impact your cancer risk, and what you can do to reduce your exposure to chemicals when cooking. (cancer.net)
  • Principles and methods for assessing direct immunotoxicity associated with exposure to chemicals. (who.int)
  • Principles for the assessment of risks to human health from exposure to chemicals. (who.int)
  • Principles and methods for assessing allergic hypersensitization associated with exposure to chemicals. (who.int)
  • hydrocarbon found among all types of oils, with the highest median values. (bvsalud.org)
  • The Toxicology of Fishes provides complete coverage of exposure, uptake, and distribution of chemical pollutants by fish and their responses within individuals, species, and communities. (chipsbooks.com)
  • In the soil, we'd find chemicals, which, depending on their properties, would migrate through the porous space to join the water underground. (creativenonfiction.org)
  • Her recent research explored the differences and trends in personal chemical exposure from 14 communities in Africa, North America and South America. (healthandenvironment.org)
  • Please see the "Methods' Access" tab in the tables found after clicking on each of the listed chemicals for additional information regarding these methods. (cdc.gov)
  • Interestingly, the unique chemical makeup of each type of oil allows scientists to pinpoint the source of the oil found in the food chain, a "fingerprint" that other researchers can use in future studies. (alive.com)
  • Several types of chemicals are found in grilled, charred, and well-done meats, as well as some baked, roasted, or fried plant-based foods when cooked at high temperatures. (cancer.net)
  • What are the chemicals found in grilled food or food cooked at a high temperature? (cancer.net)
  • The study detected 13 potential endocrine disrupting chemicals in over 50% of all wristbands and found 36 chemicals in common between chemicals detected in the three geographical wristband groups. (healthandenvironment.org)
  • Chemical fragrances can be found on the ingredients list for pretty much of product we use in our homes. (petpeoplesplace.com)
  • The utility said in a news release it found "very low levels" of the chemical, polycyclic aromatic hydrocarbons. (sandiegouniontribune.com)
  • The Board of Water Supply said it found the chemical in water samples taken from a well about 1,500 feet (457 meters) southeast of the Red Hill facility. (sandiegouniontribune.com)
  • Since plastics are known to sorb hydrophobic organic contaminants (HOCs) there is a question of what risk of chemical exposure is posed to aquatic biota from microplastic-associated contaminants. (researchgate.net)
  • contaminants in tissues could transfer onto ingested microplastic Given the diversity of MPs and their associated chemicals, generalizations are not poss ble. (researchgate.net)
  • It is the toxic buildup of chemicals embedded in the clothing, along with inhaled gases seeping through the breathing apparatuses and other respiratory protection, that researchers now fear is becoming an epidemic among firefighters. (ctif.org)
  • Mouth and throat cancers from breathing in those chemicals are also common, Professor Stec said. (ctif.org)
  • ChemTRAC provides reports from businesses in your neighbourhood with information on chemical data and the environment. (toronto.ca)
  • Finally, the way your body metabolizes these chemicals or your exposure to these chemicals in your environment can differ from someone else's. (cancer.net)
  • In this study, wristband extracts were analyzed for 1,530 unique chemicals, with chemical detections ranging from 4 to 43 per wristband. (healthandenvironment.org)
  • Learn more about chemical use in Toronto businesses, health effects, below. (toronto.ca)
  • Little else is known about the human health effects of short- or long-term exposure to the chemical. (chej.org)
  • This dangerous chemical has been linked to some pretty serious health issues, including heart disease and diabetes. (petpeoplesplace.com)
  • Assessing the health consequences of major chemical incidents : epidemiological approaches. (who.int)