Characteristics of black carbon aerosol in Jiaxing,China during autumn 2013

查看全文 作　　者：Lijuan [1]Shen;Li [1]Li;Sheng [1]Lu;Xiaohan [1]Zhang;Jie [2]Liu;Junlin [3]An;Guojun [1]Zhang;Bo [1]Wu;Fei [1]Wang

机构地区：[1]Jiaxing Environmental Monitoring Station;[2]Zhejiang Institute of Meteorological Sciences;[3]Key Laboratory of Meteorological Disaster of Ministry of Education,Nanjing University of Information Science and Technology

出　　处：《Particuology》索引2015年第13卷第3期,共6页

基　　金：funded by the National Natural Science Foundation of China(Grant No.41305135);the Natural Science Foundation of Zhejiang Province(Grant No.LQ13D050001);the Chinese Academy of Sciences Strategic Priority Research Program (Grant No.XDB05020206) 摘　　要：We conducted measurements of black carbon(BC) aerosol in Jiaxing,China during autumn from September 26 to November 30,2013.We investigated temporal and diurnal variations of BC,and its correlations with meteorological parameters and other major pollutants.Results showed that hourly mass concentrations of BC ranged from 0.2 to 22.0 μg/m^3,with an average of 5.1 μg/m^3.The diurnai variation of BC exhibited a bimodal distribution,with peaks at 07:00 and 18:00.The morning peak was larger than the evening peak.The mass percentages of BC in PM_(2.5) and PM_(10) were 7.1%and 4.8%,respectively.The absorption coefficient of BC was calculated to be 44.4 Mm^(-1),which accounted for 11.1%of the total aerosol extinction.BC was mainly emitted from local sources in southwestern Jiaxing where BC concentrations were generally greater than 11 μg/m^3 during the measurement period.Correlation analysis indicated that the main sources of BC were motor vehicle exhaust,and domestic and industrial combustion. 关键词：黑碳气溶胶嘉兴秋季中国质量浓度可吸入颗粒物峰值时间污染物排放

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Characteristics of black carbon aerosol in Jiaxing,China during autumn 2013

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