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PM2.5-Bound Polycyclic Aromatic Hydrocarbons (PAHs), Oxygenated-PAHs and Phthalate Esters (PAEs) inside and outside Middle School Classrooms in Xi'an, China: Concentration, Characteristics and Health Risk Assessment
Wang, Jingzhi1,2,3; Guinot, Benjamin4; Dong, Zhibao1,2; Li, Xiaoping1,2; Xu, Hongmei5; Xiao, Shun1,2; Ho, Steven Sai Hang3,6,7; Liu, Suixin3,6; Cao, Junji3,6,8
2017-07-01
Source PublicationAEROSOL AND AIR QUALITY RESEARCH
Volume17Issue:7Pages:1811-1824
SubtypeArticle
AbstractIn China, the exposure of children to particulate toxics, like organics, has been poorly investigated mainly due to the technical challenges in sampling and analysis. This article reports indoor and outdoor concentrations of PM2.5-bound polycyclic aromatic hydrocarbons (PAHs), oxygenated-PAHs (OPAHs) and phthalate esters (PAEs) monitored for 13 days in May 2012 in two classrooms, A and B, of a middle school at Xi'an, China. Outdoors, the average PM2.5 mass was 96.9 mu g m(-3), while indoor concentrations ranged between 154.7 mu g m(-3) (A) and 120.2 mu g m(-3) (B). Total PAEs, dominated by bis(2-ethylhexyl) phthalate (DEHP) and di-n-butyl phthalate (DBP), were found at much higher concentrations than PAHs and OPAHs, and their outdoor versus indoor distribution followed that of PM2.5, ranging from 622.0 ng m(-3) outdoors, to 808.6 (A) and 864.7 ng m(-3) (B) indoors. Concentrations of total PAHs were about 50 ng m-3 outdoors and indoors, while OPAHs were observed at concentrations of 17.7 outdoors and 15.9 (A) and 19.8 ng m(-3) (B) indoors. High molecular weight PAHs (i.e., 4-ring, 5-ring and 6-ring) generally accounted for about 80%. Variations of PAHs levels indoors were closely associated with the ventilation and the occupancy rate of the classrooms. Activities on the playground also influenced the indoor organic pollutant concentrations. Intense PAEs sources were evidenced, but outdoor sources also influenced the I/O ratios. Both the PAHs and PAEs inhalation risk estimations demonstrated that there is a non-negligible potential cancer risk for children in their school environment.
KeywordIndoor Outdoor Pahs Opahs Paes Pm2.5 Schoolchildren Health Risks
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
DOI10.4209/aaqr.2017.03.0109
WOS KeywordINDOOR-OUTDOOR RELATIONSHIPS ; HUMAN EXPOSURE ; AIR-POLLUTION ; PARTICULATE MATTER ; CANCER-RISK ; ATMOSPHERIC PARTICULATE ; NUMBER CONCENTRATIONS ; SPATIAL-DISTRIBUTION ; TEMPORAL VARIATION ; ACID ESTERS
Indexed BySCI
Language英语
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000406127500010
Citation statistics
Cited Times:11[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/5425
Collection粉尘与环境研究室
Affiliation1.Shaanxi Normal Univ, Sch Geog & Tourism, Xian 710062, Shaanxi, Peoples R China
2.Shaanxi Normal Univ, Natl Demonstrat Ctr Expt Geog Educ, Xian 710062, Shaanxi, Peoples R China
3.Chinese Acad Sci, Inst Earth Environm, SKLLQG, Key Lab Aerosol Chem & Phys, Xian 710061, Shaanxi, Peoples R China
4.Univ Toulouse, CNRS, Lab Aerol, UPS, F-31013 Toulouse, France
5.Xi An Jiao Tong Univ, Dept Environm Sci & Engn, Xian 710049, Shaanxi, Peoples R China
6.Chinese Acad Sci, Inst Earth Environm, SKLLQG, Xian 710061, Shaanxi, Peoples R China
7.Desert Res Inst, Div Atmospher Sci, Reno, NV 89512 USA
8.Xi An Jiao Tong Univ, Inst Global Environm Change, Xian 710049, Shaanxi, Peoples R China
Recommended Citation
GB/T 7714
Wang, Jingzhi,Guinot, Benjamin,Dong, Zhibao,et al. PM2.5-Bound Polycyclic Aromatic Hydrocarbons (PAHs), Oxygenated-PAHs and Phthalate Esters (PAEs) inside and outside Middle School Classrooms in Xi'an, China: Concentration, Characteristics and Health Risk Assessment[J]. AEROSOL AND AIR QUALITY RESEARCH,2017,17(7):1811-1824.
APA Wang, Jingzhi.,Guinot, Benjamin.,Dong, Zhibao.,Li, Xiaoping.,Xu, Hongmei.,...&Cao, Junji.(2017).PM2.5-Bound Polycyclic Aromatic Hydrocarbons (PAHs), Oxygenated-PAHs and Phthalate Esters (PAEs) inside and outside Middle School Classrooms in Xi'an, China: Concentration, Characteristics and Health Risk Assessment.AEROSOL AND AIR QUALITY RESEARCH,17(7),1811-1824.
MLA Wang, Jingzhi,et al."PM2.5-Bound Polycyclic Aromatic Hydrocarbons (PAHs), Oxygenated-PAHs and Phthalate Esters (PAEs) inside and outside Middle School Classrooms in Xi'an, China: Concentration, Characteristics and Health Risk Assessment".AEROSOL AND AIR QUALITY RESEARCH 17.7(2017):1811-1824.
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