Light attenuation cross-section of black carbon in an urbanatmosphere in northern China

doi:10.1016/j.partic.2014.04.011

IEECAS OpenIR > 粉尘与环境研究室

	Light attenuation cross-section of black carbon in an urbanatmosphere in northern China
	Cao,JJ(Cao,Junji)[1,2]; Zhu,CS(Zhu,Chongshu)[1]; Ho,KF(Ho,Kinfai)[3]; Han,YM(Han,Yongming)[1]; Shen,ZX(Shen,Zhenxing)[4]; Zhan,CL(Zhan,Changlin)[5]; Zhang,JQ(Zhang,Jiaquan)[5]
	2015-02
发表期刊	Particuology
卷号	18 期号:2015 页码:89-95
文章类型	期刊论文
摘要	Fine particulate matter (PM2.5) samples were collected over two years in Xi’an, China to investigate the relationships between the aerosol composition and the light absorption efficiency of black carbon (BC). Real-time light attenuation of BC at 880 nm was measured with an aethalometer. The mass concentrations and elemental carbon (EC) contents of PM2.5 were obtained, and light attenuation cross-sections (σATN) of PM2.5 BC were derived. The mass of EC contributed ∼5% to PM2.5 on average. BC σATN exhibited pronounced seasonal variability with values averaging 18.6, 24.2, 16.4, and 26.0 m2/g for the spring, summer, autumn, and winter, respectively, while averaging 23.0 m2/g overall. σATN varied inversely with the ratios of EC/PM2.5, EC/[SO42−], and EC/[NO3−]. This study of the variability in σATN illustrates the complexity of the interactions among the aerosol constituents in northern China and documents certain effects of the high EC, dust, sulfate and nitrate loadings on light attenuation.
关键词	Light Attenuation Cross-section Elemental Carbon Dust Xi’an
DOI	10.1016/j.partic.2014.04.011
收录类别	SCI
语种	英语
引用统计	被引频次：10[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/361006/9482
专题	粉尘与环境研究室
作者单位	1.Key Laboratory of Aerosol Chemistry and Physics, State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment,Chinese Academy of Sciences, Xi’an 710075, China; 2.Institute of Global Environmental Change, Xi’an Jiaotong University, Xi’an 710049, China; 3.The Jockey Club School of Public Health and Primary Care, The Chinese University of Hong Kong, Shatin, Hong Kong, China; 4.Department of Environmental Science and Engineering, Xi’an Jiaotong University, Xi’an 710049, China; 5.School of Environmental Science and Engineering, Hubei Polytechnic University, Hubei Key Laboratory of Mine Environmental Pollution Control andRemediation, Huangshi 435000, China
推荐引用方式 GB/T 7714	Cao,JJ,Zhu,CS,Ho,KF,et al. Light attenuation cross-section of black carbon in an urbanatmosphere in northern China[J]. Particuology,2015,18(2015):89-95.
APA	Cao,JJ.,Zhu,CS.,Ho,KF.,Han,YM.,Shen,ZX.,...&Zhang,JQ.(2015).Light attenuation cross-section of black carbon in an urbanatmosphere in northern China.Particuology,18(2015),89-95.
MLA	Cao,JJ,et al."Light attenuation cross-section of black carbon in an urbanatmosphere in northern China".Particuology 18.2015(2015):89-95.

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Light attenuation cr（2234KB）	期刊论文	作者接受稿	开放获取	CC BY-NC-SA	请求全文