Matches in DBpedia 2015-10 for { <http://dbpedia.org/resource/Polycyclic_aromatic_hydrocarbon> ?p ?o }
- Polycyclic_aromatic_hydrocarbon abstract "Polycyclic aromatic hydrocarbons (PAHs, also polyaromatic hydrocarbons) are hydrocarbons—organic compounds containing only carbon and hydrogen—that are composed of multiple aromatic rings (organic rings in which the electrons are delocalized). Formally, the class is further defined as lacking further branching substituents off of these ring structures. Polynuclear aromatic hydrocarbons (PNAs) are a subset of PAHs that have fused aromatic rings, that is, rings that share one or more sides. Though poly- in these cases literally means "many", there is precedence in nomenclature for beginning this class and subclass with the two ring cases, where naphthalene would therefore be considered a simple example; beginning at three rings, examples include anthracene and phenanthrene.PAHs are neutral, nonpolar molecules; they are found in fossil fuels (oil and coal) and in tar deposits, and are produced, generally, when insufficient oxygen or other factors result in incomplete combustion of organic matter (e.g., in engines and incinerators, when biomass burns in forest fires, etc.). PAHs can also be found at high levels in cooked foods, e.g., in meat cooked at high temperatures over open flame. Benzo[a]pyrene is a well-researched example of a coal tar PAH (see image) whose metabolites are mutagenic and highly carcinogenic; as a class, benzopyrenes, a ring fusion between monocyclic benzene and tetracyclic pyrene rings, result from incomplete combustion at temperatures between 300 °C (572 °F) and 600 °C (1,112 °F).PAHs may also be abundant in the universe, and are conjectured to have formed as early as the first couple of billion years after the Big Bang, in association with formation of new stars and exoplanets. Some studies suggest that PAHs account for a significant percentage of all carbon in the universe, and PAHs are discussed as possible starting materials for abiologic syntheses of materials required by the earliest forms of life.Critically, as noted, PAHs have been identified as carcinogenic and mutagenic (as well as teratogenic), and are considered pollutants of concern for the potency of potential adverse health impacts; the same holds true of their presence at significant levels over time in human diets.".
- Polycyclic_aromatic_hydrocarbon thumbnail Benzo-a-pyrene.svg?width=300.
- Polycyclic_aromatic_hydrocarbon wikiPageExternalLink database.
- Polycyclic_aromatic_hydrocarbon wikiPageExternalLink pah.
- Polycyclic_aromatic_hydrocarbon wikiPageExternalLink superfund.
- Polycyclic_aromatic_hydrocarbon wikiPageExternalLink modules.php?op=modload&name=News&file=article&sid=1992&mode=thread&order=0&thold=0.
- Polycyclic_aromatic_hydrocarbon wikiPageExternalLink pahdb.
- Polycyclic_aromatic_hydrocarbon wikiPageExternalLink index.html.
- Polycyclic_aromatic_hydrocarbon wikiPageExternalLink fusedring.
- Polycyclic_aromatic_hydrocarbon wikiPageExternalLink pahs.pdf.
- Polycyclic_aromatic_hydrocarbon wikiPageExternalLink 74.html.
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- Polycyclic_aromatic_hydrocarbon wikiPageRevisionID "678555695".
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Abiogenesis.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Acenaphthene.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Acenaphthylene.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Agency_for_Toxic_Substances_and_Disease_Registry.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Air_pollutants.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Air_pollution.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink American_Astronomical_Society.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Amino_acid.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Amino_acids.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Anthracene.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Aromatic.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Aromatic_hydrocarbon.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Aromatic_ring.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Aromaticity.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Benz(a)anthracene.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Benzene.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Benzo(a)anthracene.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Benzo(a)pyrene.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Benzo(b)fluoranthene.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Benzo(e)pyrene.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Benzo(ghi)perylene.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Benzo(j)fluoranthene.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Benzo(k)fluoranthene.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Benzopyrene.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Big_Bang.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Biodegradation.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Biphenyl.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Buckminsterfullerene.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Buckyball_(molecule).
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Carbon.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Carcinogen.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Category:Astrochemistry.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Category:Carcinogens.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Category:Origin_of_life.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Category:Persistent_Organic_Pollutants_under_the_Convention_on_Long-Range_Transboundary_Air_Pollution.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Category:Polycyclic_aromatic_hydrocarbons.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Chemical_polarity.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Chemicals_in_a_cigarette.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Chicken_wire_(chemistry).
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Chromatography.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Chrysene.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Coal.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Coal_tar.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Columbia_University.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Combustion.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Corannulene.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Coronene.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Cosmic_dust.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Cytosine.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink DNA.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Deepwater_Horizon_oil_spill.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Delocalization.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Delocalized_electron.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Dibenz(a,h)anthracene.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Dibenz(ah)anthracene.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Diesel_fuel.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Environmental_Health_Perspectives.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Erich_Clar.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Exoplanet.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Exoplanets.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Fat.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Fluoranthene.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Fluorene.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Fluorescence.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Fluorescence_spectroscopy.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Fluorescent.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Forest_fires.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Fullerene.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Fullerenes.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Gas_chromatography-mass_spectrometry.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Gas_chromatography–mass_spectrometry.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Graphene.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Heteroatom.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Hexagon.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Hydrocarbon.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Hydrogenation.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Hydroxylation.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Incense.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Indeno(1,2,3-cd)pyrene.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Instituto_de_Astrofísica_de_Andalucía.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Interstellar_cloud.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Interstellar_ice.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Interstellar_medium.
- Polycyclic_aromatic_hydrocarbon wikiPageWikiLink Isomer.