中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Assessing the health risk of heavy metals in vegetables to the general population in Beijing, China

文献类型:EI期刊论文

作者Lei Mei; Gao Ding; Chen Tongbin
发表日期2009
关键词Arsenic Cadmium Chromium Concentration (process) Fluorine containing polymers Health Health risks Lead Metals Nickel Risk perception Zinc
英文摘要A systematic survey of As, Cd, Cr, Cu, Ni, Pb and Zn concentrations in vegetables from 416 samples (involving 100 varieties) in Beijing was carried out for assessing the potential health risk to local inhabitants. The results indicated that the metal concentrations in vegetables ranged from < 0.001 to 0.479 μg/g fresh weight (fw) (As), < 0.001 to 0.101 μg/g fw (Cd), < 0.001 to 1.04 μg/g fw (Cr), 0.024 to 8.25 μg/g fw (Cu), 0.001 to 1.689 μg/g fw (Ni), < 0.001 to 0.655 μg/g fw (Pb) and 0.01 to 25.6 μg/g fw (Zn), with average concentrations of 0.013, 0.010, 0.023, 0.51, 0.053, 0.046 and 2.55 μg/g fw, respectively. The results showed that the concentrations of As, Cr, Cu, Cd, Pb and Ni in vegetables from open-fields were all significantly higher than those grown in greenhouses. In addition, in local-produced vegetables, all HMs except Zn were significantly higher than those in provincial vegetables. The estimated daily intake (EDI) of As, Cd, Cr, Cu, Ni, Pb and Zn from vegetables was 0.080, 0.062, 0.142, 3.14, 0.327, 0.283 and 15.7 μg/(kg body weight (bw)·d) for adults, respectively. Arsenic was the major risk contributor for inhabitants since the target hazard quotient based on the weighted average concentration (THQw) of arsenic amounted to 44.3% of the total THQ (TTHQ) value according to average vegetable consumption. The TTHQ was lower than 1 for all age groups, indicating that it was still safe for the general population of Beijing to consume vegetables. © 2009 The Research Centre for Eco-Environmental Sciences, Chinese Academy of Sciences.
出处Journal of Environmental Sciences
21期:12页:1702-1709
收录类别EI
语种英语
源URL[http://ir.igsnrr.ac.cn/handle/311030/24616]  
专题地理科学与资源研究所_历年回溯文献
推荐引用方式
GB/T 7714
Lei Mei,Gao Ding,Chen Tongbin. Assessing the health risk of heavy metals in vegetables to the general population in Beijing, China. 2009.

入库方式: OAI收割

来源:地理科学与资源研究所

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