QQ客服 官方微博 反馈留言

	Pattern of atmospheric mercury speciation during episodes of elevated pm2.5 levels in a coastal city in the yangtze river delta, china
	Hong, Youwei1,2,3,4; Chen, Jinsheng1,2,3; Deng, Junjun1,2,3; Tong, Lei1,2,3; Xu, Lingling1,2,3; Niu, Zhenchuan2; Yin, Liqian1,2,3; Chen, Yanting1,2,3; Hong, Zhenyu1,2,5
刊名	Environmental pollution
	2016-11-01
卷号	218页码:259-268
关键词	Atmospheric mercury Pm2.5 Pollution characteristics Source identification Coastal area
ISSN号	0269-7491
DOI	10.1016/j.envpol.2016.06.073
通讯作者	Chen, jinsheng(jschen@iue.ac.cn)
英文摘要	Measurement of atmospheric mercury speciation was conducted in a coastal city of the yangtze river delta, china from july 2013 to january 2014, in conjunction with air pollutants and meteorological parameters. the mean concentrations of gaseous elemental mercury (gem), particulate bound mercury (hgp) and reactive gaseous mercury (rgm) were 3.26 +/- 1.63 ng m(-3), 659 +/- 931 pg m(-3), and 197 246 pg m-3, respectively. high percentages of hgp during haze days were found, due to the increase in direct emissions and gas-particle partitioning of rgm. the average gas-particle partitioning coefficients (kp) during moderate or severe haze days (pm2.5 > 150 mu g m(-3)) were obviously decreased. gem and hgp were positively correlated with pm2.5, so2, no2 and co, suggesting a significant contribution of anthropogenic sources. elevated hgp concentrations in cold seasons and in the morning were observed while rgm exhibited different seasonal and diurnal pattern. the ratio of hgp/so2 and pearson correlation analysis suggested that coal combustion was the main cause of increasing atmospheric hg concentrations. the monitoring site was affected by local, regional and interregional sources. the back trajectory analysis suggested that air mass from northwest china and huabei plain contributed to elevated atmospheric hg in winter and autumn, while southeast china with clean air masses were the major contributor in summer. (c) 2016 elsevier ltd. all rights reserved.
WOS关键词	SIZE-FRACTIONATED PARTICLES ; GASEOUS ELEMENTAL MERCURY ; PARTICULATE MERCURY ; REACTIVE MERCURY ; NEW-ENGLAND ; SOURCE APPORTIONMENT ; CHEMICAL SPECIATION ; EMISSION SOURCES ; INLAND SITES ; URBAN
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000385596000029
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2374778
专题	中国科学院大学
通讯作者	Chen, Jinsheng
作者单位	1.Chinese Acad Sci, Inst Urban Environm, Ctr Excellence Urban Atmospher Environm, Xiamen 361021, Peoples R China 2.Chinese Acad Sci, Inst Urban Environm, Key Lab Urban Environm & Hlth, Xiamen 361021, Peoples R China 3.Chinese Acad Sci, NUEORS, Ningbo 315800, Zhejiang, Peoples R China 4.State Environm Protect Key Lab Cause & Prevent Ur, Shanghai 200233, Peoples R China 5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Hong, Youwei,Chen, Jinsheng,Deng, Junjun,et al. Pattern of atmospheric mercury speciation during episodes of elevated pm2.5 levels in a coastal city in the yangtze river delta, china[J]. Environmental pollution,2016,218:259-268.
APA	Hong, Youwei.,Chen, Jinsheng.,Deng, Junjun.,Tong, Lei.,Xu, Lingling.,...&Hong, Zhenyu.(2016).Pattern of atmospheric mercury speciation during episodes of elevated pm2.5 levels in a coastal city in the yangtze river delta, china.Environmental pollution,218,259-268.
MLA	Hong, Youwei,et al."Pattern of atmospheric mercury speciation during episodes of elevated pm2.5 levels in a coastal city in the yangtze river delta, china".Environmental pollution 218(2016):259-268.

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。