Tracer-based source apportioning of atmospheric organic carbon and the influence of anthropogenic emissions on secondary organic aerosol formation in Hong Kong
Yubo Cheng,Yiqiu Ma,and Di Hu
Yubo Cheng
State Key Laboratory of Environmental and Biological Analysis,
Department of Chemistry, Hong Kong Baptist University, Kowloon Tong,
Kowloon, Hong Kong, China
Yiqiu Ma
State Key Laboratory of Environmental and Biological Analysis,
Department of Chemistry, Hong Kong Baptist University, Kowloon Tong,
Kowloon, Hong Kong, China
Hong Kong Baptist University Institute of Research and Continuing Education, Shenzhen Virtual
University Park, Shenzhen, 518057, China
State Key Laboratory of Environmental and Biological Analysis,
Department of Chemistry, Hong Kong Baptist University, Kowloon Tong,
Kowloon, Hong Kong, China
Hong Kong Baptist University Institute of Research and Continuing Education, Shenzhen Virtual
University Park, Shenzhen, 518057, China
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We conducted chemical characterization and source apportionment of PM2.5 in Hong Kong. Secondary formation was the leading contributor to organic carbon (OC) throughout the year. NOx processing played a key role in both daytime and nighttime secondary organic aerosol (SOA) production, and monoterpene SOA was the most abundant. Sulfate was positively related to total and secondary sulfate-related OC, and particle acidity was significantly correlated with SOC from aging of biomass burning.
We conducted chemical characterization and source apportionment of PM2.5 in Hong Kong. Secondary...
