PM2.5 Chemical Compositions and Aerosol Optical Properties in Beijing during the Late Fall

doi:10.3390/atmos6020164

CORC > 重庆绿色智能技术研究院 > 中国科学院重庆绿色智能技术研究院 > 大气环境研究中心

	PM2.5 Chemical Compositions and Aerosol Optical Properties in Beijing during the Late Fall
	Wang, Huanbo 1; Li, Xinghua 2; Shi, Guangming 1; Cao, Junji 3; Li, Chengcai 4; Yang, Fumo1 ; Ma, Yongliang 5; He, Kebin 5
刊名	ATMOSPHERE
	2015-02-01
卷号	6 期号:2 页码:164-182
ISSN号	2073-4433
DOI	10.3390/atmos6020164
通讯作者	Yang, FM (reprint author), Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Key Lab Reservoir Aquat Environm, Chongqing 400714, Peoples R China.
英文摘要	Daily PM2.5 mass concentrations and chemical compositions together with the aerosol optical properties were measured from 8-28 November 2011 in Beijing. PM2.5 mass concentration varied from 15.6-237.5 mu g center dot m(-3) and showed a mean value of 111.2 +/- 73.4 mu g center dot m(-3). Organic matter, NH4NO3 and (NH4)(2)SO4 were the major constituents of PM2.5, accounting for 39.4%, 15.4%, and 14.9% of the total mass, respectively, while fine soil, chloride salt, and elemental carbon together accounted for 27.7%. Daily scattering and absorption coefficients (sigma(sc) and sigma(ap)) were in the range of 31.1-667 Mm(-1) and 8.24-158.0 Mm(-1), with mean values of 270 +/- 200 Mm(-1) and 74.3 +/- 43.4 Mm(-1). Significant increases in sigma(sc) and sigma(ap) were observed during the pollution accumulation episodes. The revised IMPROVE algorithm was applied to estimate the extinction coefficient (b(ext)). On average, organic matter was the largest contributor, accounting for 44.6% of b(ext), while (NH4)(2)SO4, NH4NO3, elemental carbon, and fine soil accounted for 16.3% 18.0%, 18.6%, and 2.34% of b(ext), respectively. Nevertheless, the contributions of (NH4)(2)SO4 and NH4NO3 were significantly higher during the heavy pollution periods than those on clean days. Typical pollution episodes were also explored, and it has been characterized that secondary formation of inorganic compounds is more important than carbonaceous pollution for visibility impairment in Beijing.
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资助项目	National Natural Science Foundation of China[41075093] ; National Natural Science Foundation of China[41275121] ; National Natural Science Foundation of China[41375123] ; "Strategic Priority Research Program" of the Chinese Academy of Sciences[KJZD-EW-TZ-G06-04] ; Ministry of Environmental Protection of China[201209007] ; State Environmental Protection Key Laboratory of Sources and Control of Air Pollution Complex[SCAPC201310] ; Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control of Nanjing University of Information Science and Technology ; Jiangsu Province Innovation Platform for Superiority Subject of Environmental Science and Engineering[KHK1201]
WOS研究方向	Meteorology & Atmospheric Sciences
语种	英语
出版者	MDPI AG
WOS记录号	WOS:000350691700001
内容类型	期刊论文
源URL	[http://119.78.100.138/handle/2HOD01W0/1443]
专题	大气环境研究中心
通讯作者	Yang, Fumo
作者单位	1.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Key Lab Reservoir Aquat Environm, Chongqing 400714, Peoples R China 2.Beihang Univ, Sch Chem & Environm, Beijing 100191, Peoples R China 3.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, Xian 710075, Peoples R China 4.Peking Univ, Sch Phys, Beijing 100871, Peoples R China 5.Tsinghua Univ, Sch Environm, State Environm Protect Key Lab Sources & Control, Beijing 100084, Peoples R China
推荐引用方式 GB/T 7714	Wang, Huanbo,Li, Xinghua,Shi, Guangming,et al. PM2.5 Chemical Compositions and Aerosol Optical Properties in Beijing during the Late Fall[J]. ATMOSPHERE,2015,6(2):164-182.
APA	Wang, Huanbo.,Li, Xinghua.,Shi, Guangming.,Cao, Junji.,Li, Chengcai.,...&He, Kebin.(2015).PM2.5 Chemical Compositions and Aerosol Optical Properties in Beijing during the Late Fall.ATMOSPHERE,6(2),164-182.
MLA	Wang, Huanbo,et al."PM2.5 Chemical Compositions and Aerosol Optical Properties in Beijing during the Late Fall".ATMOSPHERE 6.2(2015):164-182.