Source, health risk and composition impact of outdoor very fine particles (VFPs) to school indoor environment in Xi'an, Northwestern China

doi:10.1016/j.scitotenv.2017.08.101

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	Source, health risk and composition impact of outdoor very fine particles (VFPs) to school indoor environment in Xi'an, Northwestern China
	Ho, Kin Fai 3; Xu, Hongmei 1,4,5; Guinot, Benjamin 1; Cao, Junji 2,5; Li, Yaqi 4; Niu, Xinyi 2,5; Shen, Zhenxing 4; Liu, Suixin 5; Zhang, Ting 5; Lei, Yali 4
刊名	SCIENCE OF THE TOTAL ENVIRONMENT
	2018-01-15
卷号	612 期号:2017 页码:238-246
关键词	Classroom Very Fine Particles (Vfps Indoor And Outdoor Pm0.25) Health Risk
DOI	10.1016/j.scitotenv.2017.08.101
文献子类	Article
英文摘要	Very fine particles (VFPs, PM0.25) are able to travel deeply into the respiratory tract and can produce adverse health effects, especially to children. Information on the VFPs in schools is generally lacking. We investigated the chemical compositions, sources and health risks of VFPs in a junior secondary school of Xi'an, China, during May 16th to 30th, 2012. The results showed that organic matter (37% and 39%), SO42- (13% and 11%) and geological material (20% and 24%) were the major components of VFPs both outdoors and indoors. The VFP species indoors, such as SO42- and elemental carbon, are mainly from outdoor origins, e.g. coal burning and traffic emissions. But particle resuspension by student activities, chalk dust and import from outdoors of soil dust also contributed to deteriorate air quality in the classroom. By contrast to outdoors, several indoor factors, like higher room temperature, limited volume and longer suspension time of classroom particles, can even lead to significant secondary pollutant production. Heavy metals (mainly from outside) bound to indoor VFPs are supposedly associated to non-cancer health risks, especially Pb through ingestion pathway and Mn through dermal contact. Outdoor VFPs may be associated to PAHs cancer health risks via inhalationway. This study confirms that both indoor and outdoor sources had contributions to indoor VFPs, and that VFPs health risk should be of higher concern in urban areas of Northwestern China. (C) 2017 Elsevier B.V. All rights reserved.
WOS关键词	POLYCYCLIC AROMATIC-HYDROCARBONS ; NONPOLAR ORGANIC-COMPOUNDS ; PORT THERMAL-DESORPTION ; HEAVY-METALS ; CHEMICAL-COMPOSITION ; PARTICULATE MATTER ; N-ALKANES ; CARBONACEOUS AEROSOLS ; SOURCE IDENTIFICATION ; SUBMICRON PARTICLES
WOS研究方向	Environmental Sciences & Ecology
语种	英语
WOS记录号	WOS:000413313700024
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/5383]
专题	地球环境研究所_粉尘与环境研究室
作者单位	1.Univ Toulouse, CNRS, Lab Aerol, UPS, Toulouse, France 2.Xi An Jiao Tong Univ, Inst Global Environm Change, Xian, Shaanxi, Peoples R China 3.Chinese Univ Hong Kong, Sch Publ Hlth & Primary Care, Hong Kong, Hong Kong, Peoples R China 4.Xi An Jiao Tong Univ, Dept Environm Sci & Engn, Xian, Shaanxi, Peoples R China 5.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, Xian, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Ho, Kin Fai,Xu, Hongmei,Guinot, Benjamin,et al. Source, health risk and composition impact of outdoor very fine particles (VFPs) to school indoor environment in Xi'an, Northwestern China[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2018,612(2017):238-246.
APA	Ho, Kin Fai.,Xu, Hongmei.,Guinot, Benjamin.,Cao, Junji.,Li, Yaqi.,...&Gao, Jinjin.(2018).Source, health risk and composition impact of outdoor very fine particles (VFPs) to school indoor environment in Xi'an, Northwestern China.SCIENCE OF THE TOTAL ENVIRONMENT,612(2017),238-246.
MLA	Ho, Kin Fai,et al."Source, health risk and composition impact of outdoor very fine particles (VFPs) to school indoor environment in Xi'an, Northwestern China".SCIENCE OF THE TOTAL ENVIRONMENT 612.2017(2018):238-246.