Atmospheric deposition of polycyclic aromatic compounds and associated sources in an urban and a rural area of Chongqing, China

doi:10.1016/j.chemosphere.2017.08.077

CORC > 重庆绿色智能技术研究院 > 中国科学院重庆绿色智能技术研究院 > 大气环境研究中心

	Atmospheric deposition of polycyclic aromatic compounds and associated sources in an urban and a rural area of Chongqing, China
	Tian, Mi 1; Yang, FuMo1,2,3 ; Chen, SheJun 4; Wang, HuanBo 1; Chen, Yang1 ; Zhang, LiuYi 1; Zhang, LeiMing 5; Xiang, Li 1; Qiao, BaoQing 1
刊名	CHEMOSPHERE
	2017-11-01
卷号	187 页码:78-87
关键词	Parent PAHs Nitrated PAHs Oxygenated PAHs Bulk atmospheric deposition Source identification
ISSN号	0045-6535
DOI	10.1016/j.chemosphere.2017.08.077
通讯作者	Yang, FM (reprint author), Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Res Ctr Atmospher Environm, Chongqing 400714, Peoples R China.
英文摘要	Monthly bulk (dry + wet) deposition samples were collected at an urban and a rural site in Chongqing, southwestern China during May 2014 to April 2015 for analyzing the contents of parent polycyclic aromatic hydrocarbons (PPAHs) and three types of substituted PAHs (SPAHs) including oxygenated PAHs (OPAHs), nitrated PAHs (NPAHs) and methyl PAHs (MPAHs). Annual average (standard deviation) deposition fluxes of Sigma PPAHs, Sigma OPAHs, and MPAHs were 536 +/- 216; 221 +/- 118, and 131 +/- 41.9 ng/m(2)/d, respectively, in the urban area, and 347 +/- 185, 160 +/- 112, and 85.2 +/- 32.0 ng/m(2)/d, respectively in the rural area. Deposition of MNPAHs (6.01 +/- 3.93 and 3.91 +/- 4.84 ng/m(2)/d) were about two orders of magnitude lower than those of EPPAHs. In the urban area, temporal variations of PPAHs and MPAHs fluxes were positively correlated with particle deposition, while the trends of OPAHs and NPAHs were probably controlled by secondary formation. In the rural area, SPAHs and PPAHs deposition fluxes had similar temporal trends but differed from particle deposition. High relative humidity in Chongqing likely played an important role in facilitating the partitioning of OPAHs to atmospheric aerosols and resulting in the relatively high OPAHs level in winter. Principle component analysis identified secondary formation (21.7%) and combustion emission (52.7%) as two important contributors to polycyclic aromatic compounds (PACs) deposition fluxes in urban area. (C) 2017 Elsevier Ltd. All rights reserved.
资助项目	National Natural Science Foundation of China[41403089] ; National Natural Science Foundation of China[41375123] ; National Natural Science Foundation of China[41405027] ; State Key Laboratory of Organic Geochemistry[OGL-201412] ; Chinese Academy of Sciences[KJZD-EW-TZ-G06-04] ; Chongqing Science and Technology Commission[cstc2014yykfC20003] ; Chongqing Science and Technology Commission[cstckjcxljrc13] ; Youth Innovation Promotion Association CAS[2014349] ; CAS
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000412618900010
内容类型	期刊论文
源URL	[http://172.16.51.4:88/handle/2HOD01W0/129]
专题	大气环境研究中心
通讯作者	Yang, FuMo
作者单位	1.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Res Ctr Atmospher Environm, Chongqing 400714, Peoples R China 2.Chinese Acad Sci, Inst Urban Environm, Ctr Excellence Reg Atmospher Environm, Xiamen 361021, Peoples R China 3.Yangtze Normal Univ, Collaborat Innovat Ctr Green Dev Wuling Mt Areas, Chongqing 408100, Peoples R China 4.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Guangdong, Peoples R China 5.Environm & Climate Change Canada, Air Qual Res Div, Sci Technol Branch, Toronto, ON M3H 5T4, Canada
推荐引用方式 GB/T 7714	Tian, Mi,Yang, FuMo,Chen, SheJun,et al. Atmospheric deposition of polycyclic aromatic compounds and associated sources in an urban and a rural area of Chongqing, China[J]. CHEMOSPHERE,2017,187:78-87.
APA	Tian, Mi.,Yang, FuMo.,Chen, SheJun.,Wang, HuanBo.,Chen, Yang.,...&Qiao, BaoQing.(2017).Atmospheric deposition of polycyclic aromatic compounds and associated sources in an urban and a rural area of Chongqing, China.CHEMOSPHERE,187,78-87.
MLA	Tian, Mi,et al."Atmospheric deposition of polycyclic aromatic compounds and associated sources in an urban and a rural area of Chongqing, China".CHEMOSPHERE 187(2017):78-87.