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- W2046983169 abstract "Reactivity of polycyclic aromatic compounds (PACs) adsorbed on natural aerosol particles exposed to different atmospheric oxidants (O3, OH and NO2/O3 mixture) was studied. Decay of polycyclic aromatic hydrocarbons (PAHs) and formation/decay of oxygenated PAHs (OPAHs) and nitrated PAHs (NPAHs) were monitored. Overall, benzo[a]pyrene appeared to be the most reactive PAH (degradation of 50%). Only its nitrated derivative, 6-nitrobenzo[a]pyrene, was significantly formed explaining just 0.4% of reacted benzo[a]pyrene. No other nitrated or oxygenated benzo[a]pyrene derivatives were detected. Interestingly, B[e]P and In[1,2,3,c,d]P, which are usually considered as quite stable PAHs, also underwent decay in all experiments. In presence of O3, ketones were significantly formed but their amount was not totally explained by decay of parent PAH. These results suggest that PAH derivatives could be formed from the reaction of other compounds than their direct parent PAHs and raise the question to know if the oxidation of methyl-PAHs, identified in vehicle-exhausts, could constitute this missing source of OPAHs. NPAHs were significantly formed in presence of O3/NO2 and OH. Surprisingly, NPAH formation was clearly observed during O3 experiments. Nitrated species, already associated with aerosol particles (NO3−, NO2−) or formed by ozonation of particulate nitrogen organic matter, could react with PAHs to form NPAHs. Heterogeneous formation of 2-nitropyrene from pyrene oxidation was for the first time observed, questioning its use as an indicator of NPAH formation in gaseous phase. Equally, formation of 2-nitrofluoranthene by heterogeneous reaction of fluoranthene with O3/NO2 was clearly shown, while only its formation by homogeneous processes (gaseous phase) is reported in the literature. Finally, results obtained highlighted the dependence of heterogeneous PAH reactivity with the substrate nature and the importance to focus reactivity studies on natural particles, whatever the quality of the models previously studied." @default.
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- W2046983169 date "2012-12-01" @default.
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- W2046983169 title "Reactivity of polycyclic aromatic compounds (PAHs, NPAHs and OPAHs) adsorbed on natural aerosol particles exposed to atmospheric oxidants" @default.
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- W2046983169 cites W1976216610 @default.
- W2046983169 cites W1977132045 @default.
- W2046983169 cites W1979818116 @default.
- W2046983169 cites W1983357431 @default.
- W2046983169 cites W1985380640 @default.
- W2046983169 cites W1988894835 @default.
- W2046983169 cites W1989289260 @default.
- W2046983169 cites W1992214590 @default.
- W2046983169 cites W1992308309 @default.
- W2046983169 cites W1992576894 @default.
- W2046983169 cites W1996123635 @default.
- W2046983169 cites W1997450710 @default.
- W2046983169 cites W1999942610 @default.
- W2046983169 cites W2003240572 @default.
- W2046983169 cites W2003465832 @default.
- W2046983169 cites W2005801777 @default.
- W2046983169 cites W2008567657 @default.
- W2046983169 cites W2009598421 @default.
- W2046983169 cites W2011129327 @default.
- W2046983169 cites W2012582214 @default.
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- W2046983169 cites W2019732735 @default.
- W2046983169 cites W2022314161 @default.
- W2046983169 cites W2022358289 @default.
- W2046983169 cites W2028918120 @default.
- W2046983169 cites W2034503292 @default.
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- W2046983169 doi "https://doi.org/10.1016/j.atmosenv.2012.07.025" @default.
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