Characteristics and source apportionment of winter black carbon aerosols in two Chinese megacities of Xi'an and Hong Kong

doi:10.1007/s11356-018-3309-z

IEECAS OpenIR > 粉尘与环境研究室

	Characteristics and source apportionment of winter black carbon aerosols in two Chinese megacities of Xi'an and Hong Kong
	Zhang, Qian 1,2; Shen, Zhenxing 2,3; Ning, Zhi 4; Wang, Qiyuan 3; Cao, Junji 3; Lei, Yali 2; Sun, Jian 2; Zeng, Yaling 2; Westerdahl, Dane 4; Wang, Xin 2; Wang, Linqing 2; Xu, Hongmei 2
通讯作者	Shen, Zhenxing(zxshen@mail.xjtu.edu.cn)
	2018-11-01
发表期刊	ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
ISSN	0944-1344
卷号	25 期号:33 页码:33783-33793
摘要	Black carbon (BC) aerosols were observed over Xi'an (XA) and Hong Kong (HK) to better compare its properties and sources in two geographically separate regions in China. High-BC (7.9 +/- 3.3g m( -3)) and -PM2.5 (182 +/- 80.5g m( -3)) concentrations were observed in XA, and these were much higher than those in HK (BC, 3.2 +/- 0.9g m( -3); PM2.5, 34.5 +/- 9.3g m( -3)). The contribution of BC to PM2.5 in HK reached 10.7%, which was 1.5 times than that in XA (7.6%). The results emphasized that BC played an important role in HK PM2.5. The diurnal distribution of HK BC was highly correlated with vehicle emissions during the daytime; it peaked during heavy traffic times. Whereas XA BC exhibited flat distribution owing to stable BC sources. It is not markedly driven by traffic patterns. Additionally, the potential source contribution function (PSCF) analysis showed that XA BC mainly originated from local emissions while nearly half of the HK BC originated from distant sources, such as industrial emissions from northeastern regions and ship emissions from marine regions. These anthropogenic BC sources were found to be regional in nature based on multilinear engine (ME-2) analysis. Specifically, the XA BC sources were dominated by three factors: 22.5% from coal burning, 19.6% from biomass burning, and 32.9% from vehicle emissions. In HK, the majority of BC contributions originated from vehicle and ship emissions (78.9%), while only 14.5% and 1.5% originated from coal and biomass burning from residential combustion, as well as industrial and power plants in inland China.
关键词	Black carbon Urban atmosphere Potential source contribution function Multilinear engine Source identification
DOI	10.1007/s11356-018-3309-z
关键词[WOS]	POLYCYCLIC AROMATIC-HYDROCARBONS ; VEHICLE EMISSION FACTORS ; PARTICULATE MATTER ; INTERANNUAL VARIABILITY ; CHEMICAL-COMPOSITION ; SIZE DISTRIBUTION ; ELEMENTAL CARBON ; HAZE POLLUTION ; ORGANIC-CARBON ; TRACE GASES
收录类别	SCI ; SCI
语种	英语
资助项目	National Natural Science Foundation of China[41573101] ; SKLLQG, Chinese Academy of Sciences[SKLLQG1616] ; Research Grants Council of the Hong Kong Special Administrative Region, China (RGC Project)[21201214]
WOS研究方向	Environmental Sciences & Ecology
项目资助者	National Natural Science Foundation of China ; SKLLQG, Chinese Academy of Sciences ; Research Grants Council of the Hong Kong Special Administrative Region, China (RGC Project)
WOS类目	Environmental Sciences
WOS记录号	WOS:000449920100083
出版者	SPRINGER HEIDELBERG
引用统计	被引频次：22[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/361006/14601
专题	粉尘与环境研究室
通讯作者	Shen, Zhenxing
作者单位	1.Xian Univ Architecture & Technol, Sch Environm & Municipal Engn, Xian 710055, Shaanxi, Peoples R China 2.Xi An Jiao Tong Univ, Dept Environm Sci & Engn, Xian 710049, Shaanxi, Peoples R China 3.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, Xian, Shaanxi, Peoples R China 4.City Univ Hong Kong, Sch Energy & Environm, Hong Kong, Hong Kong, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Qian,Shen, Zhenxing,Ning, Zhi,et al. Characteristics and source apportionment of winter black carbon aerosols in two Chinese megacities of Xi'an and Hong Kong[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2018,25(33):33783-33793.
APA	Zhang, Qian.,Shen, Zhenxing.,Ning, Zhi.,Wang, Qiyuan.,Cao, Junji.,...&Xu, Hongmei.(2018).Characteristics and source apportionment of winter black carbon aerosols in two Chinese megacities of Xi'an and Hong Kong.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,25(33),33783-33793.
MLA	Zhang, Qian,et al."Characteristics and source apportionment of winter black carbon aerosols in two Chinese megacities of Xi'an and Hong Kong".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 25.33(2018):33783-33793.