• Thumbnail for Polycyclic aromatic hydrocarbon
    A polycyclic aromatic hydrocarbon (PAH) is a class of organic compounds that is composed of multiple aromatic rings. The simplest representative is naphthalene...
    86 KB (8,863 words) - 06:53, 9 May 2024
  • Thumbnail for Aromatic compound
    nitrogen Polycyclic aromatic hydrocarbons, also known as polynuclear aromatic compounds (PAHs) are aromatic hydrocarbons that consist of fused aromatic rings...
    21 KB (2,104 words) - 20:48, 6 June 2024
  • Chlorinated polycyclic aromatic hydrocarbons (Cl-PAHs) are a group of compounds comprising polycyclic aromatic hydrocarbons with two or more aromatic rings...
    11 KB (1,297 words) - 06:28, 20 August 2023
  • Thumbnail for Air pollution
    particles are linked to cardiopulmonary disease. Polycyclic Aromatic Hydrocarbons (PAHs): a group of aromatic compounds formed from the incomplete combustion...
    230 KB (23,437 words) - 22:39, 8 July 2024
  • Thumbnail for Naphthalene
    Naphthalene (category Simple aromatic rings)
    organic compound with formula C 10H 8. It is the simplest polycyclic aromatic hydrocarbon, and is a white crystalline solid with a characteristic odor...
    37 KB (3,382 words) - 03:22, 22 June 2024
  • Thumbnail for Hydrocarbon
    Cassini–Huygens space probe. Hydrocarbons are also abundant in nebulae forming polycyclic aromatic hydrocarbon compounds. Burning hydrocarbons as fuel, which produces...
    24 KB (2,578 words) - 22:55, 9 June 2024
  • Thumbnail for Aryl hydrocarbon receptor
    flavonoids, polyphenols and indoles, as well as synthetic polycyclic aromatic hydrocarbons and dioxin-like compounds. AhR is a cytosolic transcription...
    52 KB (5,968 words) - 15:15, 4 June 2024
  • Thumbnail for Sealcoat
    refined coal tar sealants are a significant contributor to polycyclic aromatic hydrocarbon levels in streams and creek beds and that the continual application...
    4 KB (549 words) - 03:36, 24 June 2024
  • contrast, molecules with 4n pi electrons are antiaromatic. Polycyclic aromatic hydrocarbons (PAH) Clayden, J.; Greeves, N.; Warren, S.; Wothers, P. (2001)...
    7 KB (452 words) - 16:59, 14 August 2023
  • Thumbnail for Anthracene
    Anthracene (category Polycyclic aromatic hydrocarbons)
    Anthracene is a solid polycyclic aromatic hydrocarbon (PAH) of formula C14H10, consisting of three fused benzene rings. It is a component of coal tar...
    15 KB (1,036 words) - 18:19, 2 June 2024
  • [better source needed] Most of the chemical compounds are polycyclic aromatic hydrocarbon: polycyclic aromatic hydrocarbons (4-rings: chrysene, fluoranthene, pyrene,...
    36 KB (3,474 words) - 08:35, 3 June 2024
  • Thumbnail for Polycyclic compound
    the term polycyclic includes polycyclic aromatic compounds, including polycyclic aromatic hydrocarbons, as well as heterocyclic aromatic compounds with...
    3 KB (226 words) - 00:02, 22 February 2024
  • Thumbnail for Benzo(a)pyrene
    Benzo(a)pyrene (category Polycyclic aromatic hydrocarbons)
    Benzo[a]pyrene (BaP or B[a]P) is a polycyclic aromatic hydrocarbon and the result of incomplete combustion of organic matter at temperatures between 300 °C...
    28 KB (2,662 words) - 20:15, 29 June 2024
  • Thumbnail for Benz(a)anthracene
    Benz(a)anthracene (category Polycyclic aromatic hydrocarbons)
    Benz[a]anthracene or benzo[a]anthracene is a polycyclic aromatic hydrocarbon with the chemical formula C18H12. It is produced during incomplete combustion...
    4 KB (171 words) - 23:47, 29 December 2023
  • Thumbnail for Pyrolysis
    Meng, Aihong; Zhang, Yanguo; Williams, Paul T. (2014-10-16). "Polycyclic Aromatic Hydrocarbon Formation from the Pyrolysis/Gasification of Lignin at Different...
    80 KB (8,335 words) - 02:03, 7 July 2024
  • Thumbnail for Hydrocarbon keratosis
    that occurs in people who have been occupationally exposed to polycyclic aromatic hydrocarbons.: 728  Freedberg, et al. (2003). Fitzpatrick's Dermatology...
    1 KB (54 words) - 04:04, 29 April 2024
  • Thumbnail for Aromaticity
    analogs (benzimidazole, for example). Polycyclic aromatic hydrocarbons are molecules containing two or more simple aromatic rings fused together by sharing...
    22 KB (2,764 words) - 21:10, 20 June 2024
  • a polycyclic aromatic hydrocarbon, the resonance structure most important to characterize its properties is that with the largest number of aromatic π-sextets...
    9 KB (1,566 words) - 20:17, 12 May 2024
  • Thumbnail for Creosote
    Many studies have been conducted using polycyclic aromatic hydrocarbons (PAH), which are low molecular hydrocarbons found in some creosote-based preservatives...
    95 KB (10,396 words) - 14:11, 18 May 2024
  • Thumbnail for PAH world hypothesis
    PAH world hypothesis (category Polycyclic aromatic hydrocarbons)
    hypothesis is a speculative hypothesis that proposes that polycyclic aromatic hydrocarbons (PAHs), known to be abundant in the universe, including in...
    16 KB (1,664 words) - 06:48, 5 November 2023
  • Thumbnail for Acenaphthylene
    Acenaphthylene (category Polycyclic aromatic hydrocarbons)
    Acenaphthylene, a polycyclic aromatic hydrocarbon is an ortho- and peri-fused tricyclic hydrocarbon. The molecule resembles naphthalene with positions...
    6 KB (365 words) - 20:41, 25 February 2024
  • Thumbnail for Pyrene
    Pyrene (category Polycyclic aromatic hydrocarbons)
    Pyrene is a polycyclic aromatic hydrocarbon (PAH) consisting of four fused benzene rings, resulting in a flat aromatic system. The chemical formula is...
    13 KB (1,114 words) - 13:19, 1 May 2024
  • Thumbnail for Perylene
    Perylene (category Polycyclic aromatic hydrocarbons)
    Perylene or perilene is a polycyclic aromatic hydrocarbon with the chemical formula C20H12, occurring as a brown solid. It or its derivatives may be carcinogenic...
    5 KB (418 words) - 23:43, 6 December 2021
  • Thumbnail for Pseudomonas stutzeri
    natural prevalence in nature. Strain P16 of P. stutzeri is a polycyclic aromatic hydrocarbon (PAH) degrading bacterium that was isolated from creosote-contaminated...
    36 KB (4,087 words) - 23:54, 2 January 2024
  • Thumbnail for Chrysene
    Chrysene (category Polycyclic aromatic hydrocarbons)
    Chrysene is a polycyclic aromatic hydrocarbon (PAH) with the molecular formula C 18H 12 that consists of four fused benzene rings. It is a natural constituent...
    5 KB (373 words) - 23:47, 16 April 2023
  • Thumbnail for Titan (moon)
    chemical pathways from simple organic compounds to complex polycyclic aromatic hydrocarbon (PAH) chemicals. Such chemical pathways may help explain the...
    173 KB (16,550 words) - 08:13, 19 June 2024
  • Thumbnail for Interstellar medium
    fragments of graphene bonded to hydrogen atoms around their edges (polycyclic aromatic hydrocarbons, PAHs), emit numerous spectral lines in the mid-infrared, at...
    60 KB (7,340 words) - 22:44, 14 June 2024
  • Thumbnail for Populus
    Polychlorinated Biphenyl (PCBs), Trichloroethylene (TCE), Polycyclic Aromatic Hydrocarbon (PAHs). Two notable poems in English lament the cutting down...
    30 KB (3,288 words) - 07:35, 12 April 2024
  • Thumbnail for Thermal rearrangement of aromatic hydrocarbons
    rearrangements of aromatic hydrocarbons has since been expanded to isomerizations and automerizations of benzene and polycyclic aromatic hydrocarbons. The first...
    16 KB (1,690 words) - 10:56, 28 May 2022
  • Thumbnail for Benzo(ghi)perylene
    Benzo(ghi)perylene (category Polycyclic aromatic hydrocarbons)
    Benzo[ghi]perylene is a polycyclic aromatic hydrocarbon with the chemical formula C22H12. Benzo[ghi]perylene occurs naturally in crude oil and coal tar...
    3 KB (126 words) - 03:21, 22 January 2024