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Comparison of PM2.5 carbonaceous pollutants between an urban site in Shanghai and a background site in a coastal East China Sea island in summer: concentration, composition and sources
Fengwen WangTian LinYuanyuan LiZhigang GuoNeil L. Rose
2017
Source PublicationEnvironmental Science Processes & Impacts
Volume19Issue:6Pages:833-842
Abstract

Nine paired samples of atmospheric particulate matter with an aerodynamic diameter less than or equal to 2.5 mm (PM2.5) were collected concurrently from an urban site in Shanghai, China and a background site in Huaniao Island (HNI) in the coastal East China Sea (ECS) between July 21 and 29, 2011. The samples were analyzed for 16 United States Environmental Protection Agency (USEPA) priority polycyclic aromatic hydrocarbons (PAHs), n-alkanes (20 species, C-14-C-33), hopanes (10 species, C-29-C-32), and steranes (12 species, C-27-C-29). These two sites, approximately 66 km apart, are both on the pathway of land-based pollutants as they are transported to the ECS by seasonal winds. As expected, concentrations in Shanghai were higher (average: 8.4 and 67.8 ng m(-3) for the 16 PAHs and n-alkanes, respectively) than those in HNI (average: 1.8 and 8.5 ng m(-3), respectively). The dominant contributor to the 16 PAHs in Shanghai was 5-6-ring PAHs (60.0%), whereas 2-3-ring PAHs contributed the most (72.5%) in HNI. Plant waxes contributed 45.7% and 25.9% of the n-alkanes in Shanghai and HNI, respectively, implying a relatively greater contribution from petroleum residues to the n-alkanes in HNI. Principal component analysis (PCA) and the compositions of hopanes and steranes highlighted a prominent contribution from traffic emissions to carbonaceous PM2.5 aerosols. This study provides comprehensive details about the sources, formation, and transport of pollutants from eastern China to the coastal ECS.

Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.gyig.ac.cn/handle/42920512-1/8095
Collection环境地球化学国家重点实验室
Affiliation1.Chongqing Univ, State Key Lab Coal Mine Disaster Dynam & Control, Chongqing 400030, Peoples R China
2.Fudan Univ, Shanghai Key Lab Atmospher Particle Pollut & Prev, Shanghai 200433, Peoples R China
3.Chongqing Univ, Coll Resources & Environm Sci, Dept Environm Sci, Chongqing 400030, Peoples R China
Recommended Citation
GB/T 7714
Fengwen WangTian LinYuanyuan LiZhigang GuoNeil L. Rose. Comparison of PM2.5 carbonaceous pollutants between an urban site in Shanghai and a background site in a coastal East China Sea island in summer: concentration, composition and sources[J]. Environmental Science Processes & Impacts,2017,19(6):833-842.
APA Fengwen WangTian LinYuanyuan LiZhigang GuoNeil L. Rose.(2017).Comparison of PM2.5 carbonaceous pollutants between an urban site in Shanghai and a background site in a coastal East China Sea island in summer: concentration, composition and sources.Environmental Science Processes & Impacts,19(6),833-842.
MLA Fengwen WangTian LinYuanyuan LiZhigang GuoNeil L. Rose."Comparison of PM2.5 carbonaceous pollutants between an urban site in Shanghai and a background site in a coastal East China Sea island in summer: concentration, composition and sources".Environmental Science Processes & Impacts 19.6(2017):833-842.
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