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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,HM(Xu,Hongmei)1,2; Guinot, Benjamin3; Cao,JJ(Cao,Junji)2,4; Li,YQ(Li,Yaqi)2,4; Ho, KF(Ho,Kinfai)5; Shen,ZX(Shen,Zhenxing)1; Liu,SX(Liu,Suixin)2; Zhang,T(Zhang,Ting)2; Lei,YL(Lei,Yali)1; Zhang,Q(Zhang,Qian)1; Sun,J(Sun,Jian)1; Gao,JJ(Gao,Jinjin)1; Cao,Junji
2018-01-15
Source PublicationScience of the Total Environment
Volume612Issue:2018Pages:238-246
Subtype期刊论文
AbstractVery 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 inhalation way. 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.
KeywordClassroom Very Fine Particles (Vfps Indoor And Outdoor Pm0.25) Health Risk
DOI10.1016/j.scitotenv.2017.08.101
Indexed BySCI
Project Number41503096 ; 41150110474 ; 2016JQ4019
Language英语
Funding OrganizationNatural Science Foundation ofChina (NSFC) ; Natural Science Foundation ofChina (NSFC) ; Research Fund for International Young Scientists of the Chinese Academy of Sciences ; Research Fund for International Young Scientists of the Chinese Academy of Sciences ; Natural Science Basic Research Plan in Shaanxi Province of China ; Natural Science Basic Research Plan in Shaanxi Province of China
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Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/5360
Collection粉尘与环境研究室
Corresponding AuthorCao,Junji
Affiliation1.Department of Environmental Science and Engineering, Xi'an Jiaotong University, Xi'an, China
2.Key Lab of Aerosol Chemistry & Physics, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, China
3.Laboratoire d'Aérologie, Université de Toulouse, CNRS, UPS, France
4.Institute of Global Environmental Change, Xi'an Jiaotong University, Xi'an, China
5.School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong, China
Recommended Citation
GB/T 7714
Xu,HM,Guinot, Benjamin,Cao,JJ,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(2018):238-246.
APA Xu,HM.,Guinot, Benjamin.,Cao,JJ.,Li,YQ.,Ho, KF.,...&Cao,Junji.(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(2018),238-246.
MLA Xu,HM,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 612.2018(2018):238-246.
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