Non-negligible secondary contribution to brown carbon in autumn and winter: inspiration from particulate nitrated and oxygenated aromatic compounds in urban Beijing
Key Lab of Geographic Information Science of Ministry of Education of China, School of Geographic Sciences, East China Normal University, Shanghai 200142, China
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Total article views: 1,956 (including HTML, PDF, and XML)
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Total article views: 1,576 (including HTML, PDF, and XML)
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Total article views: 380 (including HTML, PDF, and XML)
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Nitrated aromatic compounds (NACs) and oxygenated derivatives of polycyclic aromatic hydrocarbons (OPAHs) in PM2.5 were examined from an urban area in Beijing during the autumn and winter. The OPAH and NAC concentrations were much higher during heating than before heating. They majorly originated from the combustion of biomass and automobile emissions, and the secondary generation was the major contributor throughout the whole sampling period.
Nitrated aromatic compounds (NACs) and oxygenated derivatives of polycyclic aromatic...
