Assessment of human health risk due to lead in urban park soils using in vitro methods
文献类型：期刊论文
| 作者 | Sun, Liu; Ng, Jack C.; Tang, Wenzhong ; Zhang, Hong; Zhao, Yu; Shu, Limin
|
| 刊名 | CHEMOSPHERE
 |
| 出版日期 | 2021-04 |
| 卷号 | 269页码:- |
| 关键词 | Lead Bioaccessibility Physiologically based extraction test (PBET) Diffusive gradients in thin-films(DGT) DGT-Induced fluxes in the soils (DIFS) |
| ISSN号 | 0045-6535 |
| 英文摘要 | Beijing parks always have a large flow of local residents and tourists, and the soil Pb could threaten human health by incidental ingestion. Soil samples from eleven parks in Beijing were collected to assess the human health risk associated with Pb. Lead bioaccessibility in these parks ranged from 3.2 +/- 0.4% to 12.1 +/- 0.5% in the physiologically based extraction test (PBET) gastric phase and increased when approaching the city center. The chemical forms and soil properties (Fe, organic matter, and grain size) were important factors affecting the soil Pb bioaccessibility. The geo-accumulation index of Beihai Park (BH, near the city center) reached 1.3 +/- 0.1 indicating moderate contamination. Lead health risk to children in BH should be of concern though its hazard quotient was below one. Results obtained from the Diffusive Gradients in Thin-films (DGT)-induced fluxes in the soils (DIFS) model showed that Pb-release in some parks farther from the city center was a partially sustained case (R-diff < R < 0.95) indicating that soil particles could partially replenish effective Pb to the soil solution. A relatively higher desorption rate constant (k(1)) and shorter characteristic response time (T-c) were also found in these parks, indicating non-negligible release risk. Soil Pb based on the PBET method and DIFS model could provide a reliable reference to park managers for the health risk management of Pb pollution. (C) 2020 Elsevier Ltd. All rights reserved. |
| WOS研究方向 | Environmental Sciences |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/45910]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Aquat Chem, Beijing 100085, Peoples R China 3.Univ Queensland, Queensland Alliance Environm Hlth Sci, Brisbane, Qld 4102, Australia |
| 推荐引用方式 GB/T 7714 | Sun, Liu,Ng, Jack C.,Tang, Wenzhong,et al. Assessment of human health risk due to lead in urban park soils using in vitro methods[J]. CHEMOSPHERE,2021,269:-. |
| APA | Sun, Liu,Ng, Jack C.,Tang, Wenzhong,Zhang, Hong,Zhao, Yu,&Shu, Limin.(2021).Assessment of human health risk due to lead in urban park soils using in vitro methods.CHEMOSPHERE,269,-. |
| MLA | Sun, Liu,et al."Assessment of human health risk due to lead in urban park soils using in vitro methods".CHEMOSPHERE 269(2021):-. |
入库方式： OAI收割
来源：生态环境研究中心
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