Characteristics and sources of PM2.5 and carbonaceous species during winter in Taiyuan, China

被引：105

作者：

Meng, Z. Y. ^{[1
]}

Jiang, X. M.

Yan, P.

Lin, W. L.

Zhang, H. D.

Wang, Y.

机构：

[1] Chinese Acad Meteorol Sci, Ctr Atmospher Watch & Serv CMA, Key Lab Atmospher Chem CMA, Beijing 100081, Peoples R China

[2] Inst Chem Def PLA, Beijing 102205, Peoples R China

[3] Shanxi Prov Meteorol Sci Inst, Shanxi 030002, Peoples R China

来源：

ATMOSPHERIC ENVIRONMENT | 2007年 / 41卷 / 32期

关键词：

PM2.5; organic carbon; element carbon; emission sources;

D O I：

10.1016/j.atmosenv.2007.07.049

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Continuous observation of PM2.5 was conducted in Taiyuan, a heavily polluted city in China, during high pollution season from December 2005 to February 2006. The results of this study showed that PM2.5 and carbonaceous species pollution were serious during winter in Taiyuan. The organic carbon (OC) and element carbon (EC) were accounted for 18.6 +/- 11.2% and 2.9 +/- 1.6% of PM2.5, respectively, which indicated that carbonaceous aerosols were key components for control fine particles pollution in Taiyuan. Coal combustion was a dominant source of OC and EC of PM2.5 in the urban area of Taiyuan during winter. The impact of local and remote particle sources on urban air quality was assessed using PM2.5 concentration rose and 3-day back trajectories of air masses arriving at Taiyuan. The meteorological conditions were found to affect the ambient concentrations of PM2.5, OC, EC and OC/EC ratio. (C) 2007 Elsevier Ltd. All rights reserved.

引用

页码：6901 / 6908

页数：8

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