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Atmospheric chemistry of gas-phase polycyclic aromatic hydrocarbons: formation of atmospheric mutagens.

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Atkinson, R, Arey, J·1994·Environmental Health Perspectives

Abstract

The atmospheric chemistry of the 2- to 4-ring polycyclic aromatic hydrocarbons (PAH), which exist mainly in the gas phase in the atmosphere, is discussed. The dominant loss process for the gas-phase PAH is by reaction with the hydroxyl radical, resulting in calculated lifetimes in the atmosphere of generally less than one day. The hydroxyl (OH) radical-initiated reactions and nitrate (NO3) radical-initiated reactions often lead to the formation of mutagenic nitro-PAH and other nitropolycyclic aromatic compounds, including nitrodibenzopyranones. These atmospheric reactions have a significant effect on ambient mutagenic activity, indicating that health risk assessments of combustion emissions should include atmospheric transformation products.

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Metadata

Authors
Atkinson, R., & Arey, J.
Venue
Environmental Health Perspectives
Published
1994-10
Volume
102
Issue
suppl 4
Pages
117-126
ISSN
  • 0091-6765 (ISSN-L)
  • 1552-9924
OpenAlex
W2077528281
Cited by
500
References
0
FWCI
7.39
Type
journal article
Language
en
Open access
gold

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CoChat. (2026). Citation check: Atmospheric chemistry of gas-phase polycyclic aromatic hydrocarbons: formation of atmospheric mutagens. https://app.cochat.ai/papers/10.1289/ehp.94102s4117
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Atkinson, R., & Arey, J. (1994). Atmospheric chemistry of gas-phase polycyclic aromatic hydrocarbons: formation of atmospheric mutagens. Environmental Health Perspectives. https://doi.org/10.1289/ehp.94102s4117

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.