Concentrations, particle-size distributions, and indoor/outdoor differences of polycyclic aromatic hydrocarbons (PAHs) in a middle school classroom in Xi'an, China | |
Xu, Hongmei1,2; Guinot, Benjamin2,3; Niu, Xinyi2,4; Cao, Junji2,5; Ho, Kin Fai6; Zhao, Zhuohui7; Ho, Steven Sai Hang2,8; Liu, Suixin2 | |
2015-10-01 | |
发表期刊 | ENVIRONMENTAL GEOCHEMISTRY AND HEALTH |
ISSN | 0269-4042 |
卷号 | 37期号:5页码:861-873 |
文章类型 | Article |
摘要 | Polycyclic aromatic hydrocarbons (PAHs) attached to particulate matter can affect respiratory health, especially the health of children, but information on the air quality in schools is generally lacking. This study investigated the PAH concentrations in a naturally ventilated classroom in Xi'an, China, from 16 to 31 May 2012. Particulate PAH concentrations were measured for samples collected on five-stage cascade impactors deployed inside the classroom and outside. PM2.5-bound PAH concentrations were 53.2 ng m(-3) indoors and 72.9 ng m(-3) outdoors. PAHs attached to very fine particles (VFPs) accounted for similar to 70 % of the total PAHs. The PAH concentrations indoors were affected by the students' activities, cleaning, and smoking, while outdoors, the main sources were motor vehicle emissions and contaminated road dust. Particle-bound PAHs infiltrated the classroom through open windows, but the activities of the students and staff were also associated with an increase of PAHs attached to particles larger than 1.0 A mu m, most likely through resuspension. Cycles in the sources led to PAH concentrations 2-3 times higher on weekdays compared to weekends, both indoors and outdoors. PAH toxicity risks inside the classroom were substantially lower than those outdoors, and the highest risks were associated with VFPs. |
关键词 | Aerosols Pahs School Air Quality Indoor/outdoor Ratio Size Distribution Health Risk |
WOS标题词 | Science & Technology ; Technology ; Life Sciences & Biomedicine ; Physical Sciences |
DOI | 10.1007/s10653-014-9662-z |
关键词[WOS] | Fine Particulate Matter ; Nonpolar Organic-compounds ; Toxic Equivalency Factors ; Port Thermal-desorption ; Air-pollution ; Carbonaceous Aerosols ; Source Identification ; Chemical-composition ; Seasonal-variations ; Elementary-schools |
收录类别 | SCI |
语种 | 英语 |
WOS研究方向 | Engineering ; Environmental Sciences & Ecology ; Public, Environmental & Occupational Health ; Water Resources |
WOS类目 | Engineering, Environmental ; Environmental Sciences ; Public, Environmental & Occupational Health ; Water Resources |
WOS记录号 | WOS:000361800800006 |
出版者 | SPRINGER |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ieecas.cn/handle/361006/9250 |
专题 | 粉尘与环境研究室 |
通讯作者 | Xu, Hongmei |
作者单位 | 1.Xi An Jiao Tong Univ, Dept Environm Sci & Engn, Xian 710049, Peoples R China 2.Chinese Acad Sci, Inst Earth Environm, SKLLQG, Key Lab Aerosol Chem & Phys, Xian, Peoples R China 3.Univ Toulouse 3, CNRS, Observ Midi Pyrenees, Lab Aerol, F-31062 Toulouse, France 4.Xi An Jiao Tong Univ, Sch Human Settlements & Civil Engn, Xian 710049, Peoples R China 5.Xi An Jiao Tong Univ, Inst Global Environm Change, Xian 710049, Peoples R China 6.Chinese Univ Hong Kong, Sch Publ Hlth & Primary Care, Hong Kong, Peoples R China 7.Fudan Univ, Dept Environm Hlth, Sch Publ Hlth, Shanghai 200433, Peoples R China 8.Hong Kong Premium Serv & Res Lab, Kowloon, Hong Kong, Peoples R China |
推荐引用方式 GB/T 7714 | Xu, Hongmei,Guinot, Benjamin,Niu, Xinyi,et al. Concentrations, particle-size distributions, and indoor/outdoor differences of polycyclic aromatic hydrocarbons (PAHs) in a middle school classroom in Xi'an, China[J]. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH,2015,37(5):861-873. |
APA | Xu, Hongmei.,Guinot, Benjamin.,Niu, Xinyi.,Cao, Junji.,Ho, Kin Fai.,...&Liu, Suixin.(2015).Concentrations, particle-size distributions, and indoor/outdoor differences of polycyclic aromatic hydrocarbons (PAHs) in a middle school classroom in Xi'an, China.ENVIRONMENTAL GEOCHEMISTRY AND HEALTH,37(5),861-873. |
MLA | Xu, Hongmei,et al."Concentrations, particle-size distributions, and indoor/outdoor differences of polycyclic aromatic hydrocarbons (PAHs) in a middle school classroom in Xi'an, China".ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 37.5(2015):861-873. |
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