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

作     者：Lijuan Shen Li Li Sheng Lu Xiaohan Zhang Jie Liu Junlin An Guojun Zhang Bo Wu Fei Wang 

作者机构：Jiaxing Environmental Monitoring Station Zhejiang Institute of Meteorological Sciences Key Laboratory of Meteorological Disaster of Ministry of EducationNanjing University of Information Science and Technology 

出 版 物：《Particuology》 (颗粒学报（英文版）)

年 卷 期：2015年第13卷第3期

页      面：10-15页

核心收录：

学科分类：07[理学] 0817[工学-化学工程与技术] 070601[理学-气象学] 070602[理学-大气物理学与大气环境] 0805[工学-材料科学与工程（可授工学、理学学位）] 0706[理学-大气科学] 0703[理学-化学] 0702[理学-物理学] 

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) 

主　　题：Black carbonDiurnal variationAbsorption coefficientCorrelation analysisJiaxing 

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 cor relations with meteorological parameters and other major pollutants. Results showed that hourly mass concentrations of BC ranged from 0.2 to 22.0 μg/m3, with an average of 5.1 μg/ms. The diurnal 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 PM2.s and PM10 were 7.1%and 4.8g, 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 11μg/m3 during the measurement period. Correlation analysis indicated that the main sources of BC were motor vehicle exhaust, and domestic and industrial combustion.