期刊
ENVIRONMENTAL POLLUTION
卷 251, 期 -, 页码 839-849出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.envpol.2019.05.058
关键词
Indoor dust; Heavy metals; Enrichment characteristics; Health risk assessment
资金
- National Natural Science Foundation of China [41173032, 41373110]
- National Postdoctoral Program for Innovative Talents [BX20180287]
- China Postdoctoral Science Foundation [2018M640589]
Metals in indoor dust pose potential health risks to humans. Dust deposition on air conditioner filters can represent the resuspended particulate matter in indoor air. However, few studies have examined this until now. This study investigated the total concentrations and different chemical fractionations of Cd, Cr, Mn, Ni, Pb, Sb, V, and Zn in indoor dust from three different functional zones (the Chief District, Commercial District (CmD), and Industrial District) in Hefei. The mean metal concentrations in indoor dust decreased in the following order: Zn > Mn > Pb > Cr> Ni > V > Cd > Sb. Cd, Pb, and Zn mainly existed in the mobile fraction. Cr and V mainly existed in the residual fraction. The enrichment factor and geoaccumulation index values of heavy metals were all ranked in the order of Cd > Zn > Pb > Sb > Ni > Cr > V, and these values in indoor dust were larger than those in outdoor dust. In addition, the enrichment patterns of these elements were similar in the three functional areas. The orders of non-carcinogenic risk (hazard index; HI) for the different functional areas for children were roughly the same, but there were clear differences for adults. In general, all the His were less than 1, which were within the internationally recognized safe range. The total carcinogenic risk (TR) was in the order of Cr> Pb > Cd for both children and adults in the three functional zones. The TRs from Cr exposure were not negligible. The TRs were significantly higher in the CmD. (C) 2019 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据