Metallic elements and Pb isotopes in PM(2.5)in three Chinese typical megacities: spatial distribution and source apportionment

doi:10.1039/d0em00174k

IEECAS OpenIR > 粉尘与环境研究室

	Metallic elements and Pb isotopes in PM(2.5)in three Chinese typical megacities: spatial distribution and source apportionment
	Xu, H. M.1,2,3; He, K. L.1; Feng, R.1; Shen, Z. X.1; Cao, J. J.2; Liu, S. X.2; Ho, K. F.4; Huang, R-J 2; Guinot, B.3; Wang, Q. Y.2; Zhou, J. M.2; Shen, M. X.2; Xiao, S.5; Zhou, B. H.6; Sonke, J. E.7
通讯作者	Xu, H. M.(xuhongmei@xjtu.edu.cn) ; Cao, J. J.(cao@loess.llqg.ac.cn)
	2020-08-01
发表期刊	ENVIRONMENTAL SCIENCE-PROCESSES & IMPACTS
ISSN	2050-7887
卷号	22 期号:8 页码:1718-1730
摘要	Heavy metal pollution in fine particulate matter (PM2.5) is a serious environmental and health concern in China, particularly during winter. Here, we detected 40 elements in 24 h integrated daily PM(2.5)samples collected in January 2014 from three typical Chinese metropolises (Beijing, Changchun, and Chengdu) to reflect elemental spatial variations, local sources, and regional transport. The measured elemental concentrations in Changchun were 11.1% and 48.4% higher than those in Beijing and Chengdu, respectively. Thus, PM(2.5)from Changchun exhibited high levels and diversity in the elemental profile (characterized by high concentrations of industrial emission elemental markers). The results of elemental ratios and Pb isotopes proved that, except for a coal combustion source, vehicular emissions contributed more to PM(2.5)heavy metals in Beijing than in the other two cities; Changchun PM(2.5)elements received large contributions from industrial sources, including iron and steel manufacturing, and automobile industry. Moreover, crustal dust from long-range transport of regional air masses from the northwest regions of China played a crucial role in determining elemental levels in Beijing and Changchun, accounting for more than 50% of source intensity. However, a specific dominant source was not determined in Chengdu; the contribution of anthropogenic dust, mainly from construction activities, needs to be paid attention in Chengdu eastern area. This study contributed to enhancing our understanding of elemental spatial distribution characteristics and sources and to setting more judicious standards and strategies for PM(2.5)bound heavy metals in China.
DOI	10.1039/d0em00174k
关键词[WOS]	FINE PARTICULATE MATTER ; LONG-RANGE TRANSPORT ; TRACE-ELEMENTS ; CHEMICAL-COMPOSITION ; REGIONAL TRANSPORT ; HEAVY-METALS ; HEALTH-RISK ; LEAD POLLUTION ; HAZE EPISODES ; QINGHAI LAKE
收录类别	SCI ; SCI
语种	英语
资助项目	National Natural Science Foundation of China[41877376] ; National Natural Science Foundation of China[41771220] ; Fundamental Research Funds for the Central Universities[xjj2018248] ; Key Research and Development Program of Shaanxi Province[2018-ZDXM3-01] ; Natural Science Basic Research Plan in Shaanxi Province of the ChinaKey Project[2019JZ-36]
WOS研究方向	Chemistry ; Environmental Sciences & Ecology
项目资助者	National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Key Research and Development Program of Shaanxi Province ; Natural Science Basic Research Plan in Shaanxi Province of the ChinaKey Project
WOS类目	Chemistry, Analytical ; Environmental Sciences
WOS记录号	WOS:000560533900009
出版者	ROYAL SOC CHEMISTRY
引用统计	被引频次：8[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/361006/15198
专题	粉尘与环境研究室
通讯作者	Xu, H. M.; Cao, J. J.
作者单位	1.Xi An Jiao Tong Univ, Dept Environm Sci & Engn, Xian, Peoples R China 2.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, SKLLQG, Xian, Peoples R China 3.Univ Toulouse 3, UPS, CNRS, Lab Aerol, Toulouse, France 4.Chinese Univ Hong Kong, JC Sch Publ Hlth & Primary Care, Hong Kong, Peoples R China 5.Shaanxi Normal Univ, Sch Geog & Tourism, Xian, Peoples R China 6.Baoji Univ Arts & Sci, Coll Geog & Environm, Shaanxi Key Lab Disaster Monitoring & Mech Simula, Baoji, Peoples R China 7.Univ Toulouse, Lab Geosci Environm Toulouse, Observ Midipyrenees, CNRS,IRD, Toulouse, France
推荐引用方式 GB/T 7714	Xu, H. M.,He, K. L.,Feng, R.,et al. Metallic elements and Pb isotopes in PM(2.5)in three Chinese typical megacities: spatial distribution and source apportionment[J]. ENVIRONMENTAL SCIENCE-PROCESSES & IMPACTS,2020,22(8):1718-1730.
APA	Xu, H. M..,He, K. L..,Feng, R..,Shen, Z. X..,Cao, J. J..,...&Sonke, J. E..(2020).Metallic elements and Pb isotopes in PM(2.5)in three Chinese typical megacities: spatial distribution and source apportionment.ENVIRONMENTAL SCIENCE-PROCESSES & IMPACTS,22(8),1718-1730.
MLA	Xu, H. M.,et al."Metallic elements and Pb isotopes in PM(2.5)in three Chinese typical megacities: spatial distribution and source apportionment".ENVIRONMENTAL SCIENCE-PROCESSES & IMPACTS 22.8(2020):1718-1730.