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Carbonaceous and Ionic Components of Atmospheric Fine Particles in Beijing and Their Impact on Atmospheric Visibility
Zhou, JM (Zhou, Jiamao)[1]; Zhang, RJ (Zhang, Renjian)[2]; Cao, JJ (Cao, Junji)[1,3]; Chow, JC (Chow, Judith C.)[4]; Watson, JG (Watson, John G.)[4]
2012-08-31
Source PublicationAEROSOL AND AIR QUALITY RESEARCH
Volume12Issue:4Pages:492-502
Subtype期刊论文
Abstract

Ground-based observation of fine particulate matter (PM2.5) in Beijing was carried out continuously in 2006. The carbonaceous and ionic components, as well as their distribution characteristics and seasonal variation, were obtained. The annual mean mass concentration of PM2.5 was 176.6 +/- 100.3 mu g/m(3). Long-range transport dust and local dust raised by strong wind during the spring made a considerable contribution to PM2.5 mass concentration. There was significant seasonal variation in carbonaceous and water-soluble ionic components associated with diverse emission sources, varying meteorological conditions during different seasons, and different mechanisms of formation for secondary aerosol ions. Comparing studies under different synoptic conditions suggested that PM2.5 pollution was mainly caused by transportation of particulates from remote sources, whereas hazy synoptic conditions are caused by local pollution. PM2.5 and visibility were negatively correlated, and the relationship between the concentrations of NH4+, SO42-, and NO3- with PM2.5 concentration during winter can be described using power function fitting.

KeywordPm2.5 Oc Ec Ion Visibility
DOI10.4209/aaqr.2011.11.0218
Indexed BySCIE ; EI
Language英语
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/10130
Collection粉尘与环境研究室
Corresponding AuthorCao, JJ (Cao, Junji)[1,3]
Affiliation1.Key Laboratory of Aerosol, SKLLQG, Institute of Earth Environment, Chinese Academy of Sciences, Xi’an, China;
2.RCE-TEA, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China;
3.Institute of Global Environmental Change, Xi’an Jiaotong University, Xi’an, China;
4.Desert Research Institute, Reno, USA
Recommended Citation
GB/T 7714
Zhou, JM ,Zhang, RJ ,Cao, JJ ,et al. Carbonaceous and Ionic Components of Atmospheric Fine Particles in Beijing and Their Impact on Atmospheric Visibility[J]. AEROSOL AND AIR QUALITY RESEARCH,2012,12(4):492-502.
APA Zhou, JM ,Zhang, RJ ,Cao, JJ ,Chow, JC ,&Watson, JG .(2012).Carbonaceous and Ionic Components of Atmospheric Fine Particles in Beijing and Their Impact on Atmospheric Visibility.AEROSOL AND AIR QUALITY RESEARCH,12(4),492-502.
MLA Zhou, JM ,et al."Carbonaceous and Ionic Components of Atmospheric Fine Particles in Beijing and Their Impact on Atmospheric Visibility".AEROSOL AND AIR QUALITY RESEARCH 12.4(2012):492-502.
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