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题名: Health risks of heavy metals in contaminated soils and food crops irrigated with wastewater in Beijing, China
作者: Khan, S. ; Cao, Q. ; Zheng, Y. M. ; Huang, Y. Z. ; Zhu, Y. G.
刊名: ENVIRONMENTAL POLLUTION
出版日期: 2008-04
卷号: 152, 期号:3, 页码:686-692
关键词: health risk ; heavy metal ; plant uptake ; soil contamination ; wastewater irrigation
部门归属: 土壤环境科学实验室
英文摘要: Consumption of food crops contaminated with heavy metals is a major food chain route for human exposure. We studied the health risks of heavy metals in contaminated food crops irrigated with wastewater. Results indicate that there is a substantial buildup of heavy metals in wastewater-irrigated soils, collected from Beijing, China. Heavy metal concentrations in plants grown in wastewater-irrigated soils were significantly higher (P <= 0.001) than in plants grown in the reference soil, and exceeded the permissible limits set by the State Environmental Protection Administration (SEPA) in China and the World Health Organization (WHO). Furthermore, this study highlights that both adults and children consuming food crops grown in wastewater-irrigated soils ingest significant amount of the metals studied. However, health risk index values of less than I indicate a relative absence of health risks associated with the ingestion of contaminated vegetables. (c) 2007 Elsevier Ltd. All rights reserved.
WOS记录号: WOS:000255432400021
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内容类型: 期刊论文
URI标识: http://ir.rcees.ac.cn/handle/311016/22327
Appears in Collections:土壤环境科学实验室_期刊论文

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