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Potential threat of heavy metals and PAHs in PM2.5 in different urban functional areas of Beijing
Yang Gao; Xinyue Guo; Hongbing Ji; Cai Li; Huaijian Ding; Meryem Briki; Lei Tang; Yan Zhang
2016
发表期刊Atmospheric Research
卷号178期号:1页码:6-16
摘要
Beijing, as the capital of China, is one of the most populous cities in the world. With the fine particulate matter pollution being increasingly serious, daily exposure to hazardous ingredients caused more and more attention. Current research concerning risk evaluation in Beijing was relative less. In November, 2013, samples were collected in seven different functional areas of Beijing, so as to better understand the risk to human health caused by particle matter pollution in this region. PM2.5 pollution in rural and urban Beijing was relative high under haze-fog days in comparison with non haze-fog value. Zn and Ba showed the highest concentration levels among non-carcinogenic metals. The non-carcinogenic metal concentration at all the sites ranged in the same order: Ce, Pb, Cu, V and Sb. Higher ring PAHs (with four to six rings) were the dominant species and constituted more than 90% of the Sigma(14)PAHs. Pb (4.34 x 10(-4) for men, 3.73 x 10(-4) for women) presented the maximum risk level for non-carcinogenic heavy metals in the whole study area. While, risk levels of Cr at residential areas, schools, Olympic Park and rural countryside exceeded the limit for adults. In haze-fog days, the carcinogenic PAH risk level in each functional area ranged in the order: rural countryside > inner suburban district > Olympic Park > city central > schools > ecological reserve > residential areas. To some extent, benzo(a)pyrene may had a potential risk to adults, and other carcinogenic PAHs were all under average risk acceptance.
关键词Pm2.5 Chemical Composition Health Risk Heavy Metal Pahs Beijing
学科领域环境地球化学
收录类别SCI
语种英语
文献类型期刊论文
条目标识符http://ir.gyig.ac.cn/handle/352002/6222
专题环境地球化学国家重点实验室_环境地球化学国家重点实验室_期刊论文
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GB/T 7714
Yang Gao,Xinyue Guo,Hongbing Ji,et al. Potential threat of heavy metals and PAHs in PM2.5 in different urban functional areas of Beijing[J]. Atmospheric Research,2016,178(1):6-16.
APA Yang Gao.,Xinyue Guo.,Hongbing Ji.,Cai Li.,Huaijian Ding.,...&Yan Zhang.(2016).Potential threat of heavy metals and PAHs in PM2.5 in different urban functional areas of Beijing.Atmospheric Research,178(1),6-16.
MLA Yang Gao,et al."Potential threat of heavy metals and PAHs in PM2.5 in different urban functional areas of Beijing".Atmospheric Research 178.1(2016):6-16.
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