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@article{1159418,
author = {Keyte, I.J. and Harrison, R.M. and Lammel, Gerhard},
article_location = {Cambridge},
article_number = {24},
doi = {http://dx.doi.org/10.1039/c3cs60147a},
keywords = {GAS-PHASE REACTIONS; LIQUID-CHROMATOGRAPHY; SEMIVOLATILE ORGANIC-COMPOUNDS; SIMULATED ATMOSPHERIC CONDITIONS; AIRBORNE PARTICULATE MATTER; RADICAL-INITIATED REACTIONS; MS; PCBS; CONTINENTAL BOUNDARY-LAYER},
language = {eng},
issn = {0306-0012},
journal = {Chemical Society Reviews},
title = {Chemical reactivity and long-range transport potential of polycyclic aromatic hydrocarbons - a review},
volume = {42},
year = {2013}
}
TY - JOUR
ID - 1159418
AU - Keyte, I.J. - Harrison, R.M. - Lammel, Gerhard
PY - 2013
TI - Chemical reactivity and long-range transport potential of polycyclic aromatic hydrocarbons - a review
JF - Chemical Society Reviews
VL - 42
IS - 24
SP - 9333-9391
EP - 9333-9391
PB - RSC Publishing
SN - 03060012
KW - GAS-PHASE REACTIONS
KW - LIQUID-CHROMATOGRAPHY
KW - SEMIVOLATILE ORGANIC-COMPOUNDS
KW - SIMULATED ATMOSPHERIC CONDITIONS
KW - AIRBORNE PARTICULATE MATTER
KW - RADICAL-INITIATED REACTIONS
KW - MS
KW - PCBS
KW - CONTINENTAL BOUNDARY-LAYER
N2 - Polycyclic aromatic hydrocarbons (PAHs) are of considerable concern due to their well-recognised toxicity and especially due to the carcinogenic hazard which they present. PAHs are semi-volatile and therefore partition between vapour and condensed phases in the atmosphere and both the vapour and particulate forms undergo chemical reactions. This article briefly reviews the current understanding of vapour-particle partitioning of PAHs and the PAH deposition processes, and in greater detail, their chemical reactions. PAHs are reactive towards a number of atmospheric oxidants, most notably the hydroxyl radical, ozone, the nitrate radical (NO3) and nitrogen dioxide. Rate coefficient data are reviewed for reactions of lower molecular weight PAH vapour with these species as well as for heterogeneous reactions of higher molecular weight compounds. Whereas the data for reactions of the 2-3-ring PAH vapour are quite extensive and generally consistent, such data are mostly lacking for the 4-ring PAHs and the heterogeneous rate data (5 and more rings), which are dependent on the substrate type and reaction conditions, are less comprehensive. The atmospheric reactions of PAH lead to the formation of oxy and nitro derivatives, reviewed here, too. Finally, the capacity of PAHs for long range transport and the results of numerical model studies are described. Research needs are identified.
ER -
KEYTE, I.J., R.M. HARRISON and Gerhard LAMMEL. Chemical reactivity and long-range transport potential of polycyclic aromatic hydrocarbons - a review. \textit{Chemical Society Reviews}. Cambridge: RSC Publishing, 2013, vol.~42, No~24, p.~9333-9391. ISSN~0306-0012. Available from: https://dx.doi.org/10.1039/c3cs60147a.
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