中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Effect of the pollution control measures on PM2.5 during the 2015 China Victory Day Parade: Implication from water-soluble ions and sulfur isotope

文献类型:期刊论文

作者Xiaokun Han;  Qingjun Guo;  Congqiang Liu;  Harald Strauss;  Junxing Yang;  Jian Hu;  Rongfei Wei;  Liyan Tian;  Jing Kong;  Marc Peters
刊名Environmental Pollution
出版日期2016
卷号218页码:230-241
关键词Pm2.5 sulfur Isotope oxygen Isotope water-soluble Ions beijing
英文摘要

Air pollution by particulate matter is a serious problem in Beijing. Strict pollution control measures have been carried out in Beijing prior to and during the 2015 China Victory Day Parade in order to improve air quality. This distinct event provides an excellent opportunity for investigating the impact of such measures on the chemical properties of particulate matter with an aerodynamic diameter ≤2.5 μm (PM2.5). The water-soluble ions as well as sulfur and oxygen isotopes of sulfate in PM2.5 collected between August 19 and September 18, 2015 (n = 31) were analyzed in order to trace the sources and formation processes of PM2.5 in Beijing. The results exhibit a decrease in concentration of water-soluble ions in PM2.5 including aerosol sulfate. In contrast, the mean values of δ34Ssulfate (4.7 ± 0.8‰ vs. 5.0 ± 2.0‰) and δ18Osulfate (18.3 ± 2.3‰ vs. 17.2 ± 6.0) in PM2.5 during the air pollution control period and the non-source control period exhibit no significant differences, which suggests that despite a reduction in concentration, the sulfate source remains identical for the two periods. It is inferred that the decrease in concentration of sulfate in PM2.5 mainly results from variations in air mass transport. Notably, the air mass during the pollution control period originated mainly from north and northeast and changed to southerly directions thereafter. The sulfur and oxygen isotopes of the sulfate point to coal combustion as the major source of sulfate in PM2.5 from the Beijing area.

语种英语
源URL[http://ir.gyig.ac.cn/handle/42920512-1/9609]  
专题地球化学研究所_环境地球化学国家重点实验室
作者单位1.Institut für Geologie und Palaontologie, Westf € alische Wilhelms-Universit € at Münster, Corrensstrasse 24, 48149 Münster, Germany
2.State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang Guizhou 550002, China
3.University of Chinese Academy of Sciences, Beijing 100049, China
4.Center for Environmental Remediation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
推荐引用方式
GB/T 7714
Xiaokun Han;Qingjun Guo;Congqiang Liu;Harald Strauss;Junxing Yang;Jian Hu;Rongfei Wei;Liyan Tian;Jing Kong;Marc Peters. Effect of the pollution control measures on PM2.5 during the 2015 China Victory Day Parade: Implication from water-soluble ions and sulfur isotope[J]. Environmental Pollution,2016,218:230-241.
APA Xiaokun Han;Qingjun Guo;Congqiang Liu;Harald Strauss;Junxing Yang;Jian Hu;Rongfei Wei;Liyan Tian;Jing Kong;Marc Peters.(2016).Effect of the pollution control measures on PM2.5 during the 2015 China Victory Day Parade: Implication from water-soluble ions and sulfur isotope.Environmental Pollution,218,230-241.
MLA Xiaokun Han;Qingjun Guo;Congqiang Liu;Harald Strauss;Junxing Yang;Jian Hu;Rongfei Wei;Liyan Tian;Jing Kong;Marc Peters."Effect of the pollution control measures on PM2.5 during the 2015 China Victory Day Parade: Implication from water-soluble ions and sulfur isotope".Environmental Pollution 218(2016):230-241.

入库方式: OAI收割

来源:地球化学研究所

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