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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
Xu, Hongmei1,2,3; Guinot, Benjamin3; Cao, Junji2,4; Li, Yaqi1; Niu, Xinyi2,4; Ho, Kin Fai5; Shen, Zhenxing1; Liu, Suixin2; Zhang, Ting2; Lei, Yali1; Zhang, Qian1; Sun, Jian1; Gao, Jinjin1
2018-01-15
发表期刊SCIENCE OF THE TOTAL ENVIRONMENT
卷号612期号:2017页码:238-246
文章类型Article
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.
关键词Classroom Very Fine Particles (Vfps Indoor And Outdoor Pm0.25) Health Risk
WOS标题词Science & Technology ; Life Sciences & Biomedicine
DOI10.1016/j.scitotenv.2017.08.101
关键词[WOS]POLYCYCLIC AROMATIC-HYDROCARBONS ; NONPOLAR ORGANIC-COMPOUNDS ; PORT THERMAL-DESORPTION ; HEAVY-METALS ; CHEMICAL-COMPOSITION ; PARTICULATE MATTER ; N-ALKANES ; CARBONACEOUS AEROSOLS ; SOURCE IDENTIFICATION ; SUBMICRON PARTICLES
收录类别SCI
语种英语
WOS研究方向Environmental Sciences & Ecology
WOS类目Environmental Sciences
WOS记录号WOS:000413313700024
引用统计
被引频次:3[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/361006/5383
专题粉尘与环境研究室
作者单位1.Xi An Jiao Tong Univ, Dept Environm Sci & Engn, Xian, Shaanxi, Peoples R China
2.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, Xian, Shaanxi, Peoples R China
3.Univ Toulouse, CNRS, Lab Aerol, UPS, Toulouse, France
4.Xi An Jiao Tong Univ, Inst Global Environm Change, Xian, Shaanxi, Peoples R China
5.Chinese Univ Hong Kong, Sch Publ Hlth & Primary Care, Hong Kong, Hong Kong, Peoples R China
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Xu, Hongmei,Guinot, Benjamin,Cao, Junji,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 Xu, Hongmei.,Guinot, Benjamin.,Cao, Junji.,Li, Yaqi.,Niu, Xinyi.,...&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 Xu, Hongmei,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.
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