The optical properties of urban aerosol in northern China: A case studyat Xi'an
Zhu,CS(Zhu,Chongshu)[1,2]; Cao,JJ(Cao,Junji)[1,2,4]; Ho,KF(Ho,Kinfai)[3]; Chen,L-WA(Chen,L-W Antony)[1,7]; Huang,RJ(Huang,Rujin)[5]; Wang,YC(Wang,Yichen)[1]; Li,H(Li,Hua)[1,8]; Shen,ZX(Shen,Zhenxing)[6]; Chow,JC(Chow,Judith C)[1,7]; Watson,JG(Watson,John G)[1,7]; Su,XL(Su,Xiaoli)[1]; Wang,QY(Wang,Qiyuan)[1]; Xiao,S(Xiao,Shun)[1,9]
2015-06-15
发表期刊Atmospheric Research
卷号160期号:2015页码:59-67
文章类型期刊论文
摘要Simultaneous measurements of particle scattering coefficient (Bscat) and absorption coefficient (Babs) were conducted at Xi'an from mid-August to mid-October 2012 to estimate the particle single scattering albedo (SSA) and the Ångström coefficients in highly polluted urban air. The hourly averaged Bscat was 272 Mm−1 at 532 nm and 82 Mm−1 at 870 nm, while hourly averaged Babs was 31 Mm−1 at 532 nm and 19 Mm−1 at 870 nm. Similar diurnal variations for Bscat and Babs were observed between the two wavelengths. The averaged SSA was 0.88 at 532 nm and 0.78 at 870 nm. Based on the Ångström coefficients, anthropogenic fine particles show dominant contribution during the sampling period, accompanied by occasional dust events. Moreover, the major contributors to aerosol optical properties are attributed to the mixture of black carbon (BC) and brown carbon (BrC) with non-absorbing components over urban area in northern China. The findings provide useful insights into the factors affecting the visibility in northern Chinese cities and therefore essential knowledge for improving the air quality.
关键词PAX SSA Scattering coefficient Absorption coefficient Xi'an
DOI10.1016/j.atmosres.2015.03.008
收录类别SCI
语种英语
引用统计
被引频次:9[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/9630
专题黄土与第四纪地质国家重点实验室(2010~)
作者单位1.Key Laboratory of Aerosol Chemistry & Physics, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, China;
2.SKLLQG, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, China;
3.The Jockey Club School of Public Health and Primary Care, The Chinese University of Hong Kong, Shatin, Hong Kong;
4.Institute of Global Environmental Change, Xi'an Jiaotong University, Xi'an, China;
5.Laboratory of Atmospheric Chemistry, Paul Scherrer Institute (PSI), 5232 Villigen PSI, Switzerland;
6.Department of Environmental Science and Engineering, Xi'an Jiaotong University, Xi'an, China;
7.Division of Atmospheric Sciences, Desert Research Institute, Reno, NV, USA;
8.Key Scientific Research Base of Ancient Polychrome Pottery Conservation, SACH, Emperor Qin Shihuang's Mausoleum Site Museum, Xi'an, China;
9.Shaanxi Meteorological Bureau, Xi'an, China
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Zhu,CS,Cao,JJ,Ho,KF,et al. The optical properties of urban aerosol in northern China: A case studyat Xi'an[J]. Atmospheric Research,2015,160(2015):59-67.
APA Zhu,CS.,Cao,JJ.,Ho,KF.,Chen,L-WA.,Huang,RJ.,...&Xiao,S.(2015).The optical properties of urban aerosol in northern China: A case studyat Xi'an.Atmospheric Research,160(2015),59-67.
MLA Zhu,CS,et al."The optical properties of urban aerosol in northern China: A case studyat Xi'an".Atmospheric Research 160.2015(2015):59-67.
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