蔬菜重金属暴露接触对大宝山矿区及周边居民的健康风险 Health risk of heavy metals to inhabitants around min

排行榜 收藏 打印 发给朋友 举报 来源: 《地理研究》 发布者:cjk3d
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蔬菜重金属暴露接触对大宝山矿区及周边居民的健康风险

Health risk of heavy metals to inhabitants around mine contaminated areas via consumption of vegetables

通过36个土壤样品,32个灌溉水及120个蔬菜样品的调查研究,结果表明,广东韶关翁源县大宝山及周边的四个地区土壤、灌溉水及蔬菜中重金属含量都表现为:上坝>下坝>蓑衣坑>何屋.下坝、蓑衣坑及何屋通过食用蔬菜日均Pb、Zn、Cd、Cu摄人量均未超过FAO/WHO人均日摄入可允许限量标准.但上坝居民通过蔬菜摄入Pb和Cd的DI分别为PTDI的1.40和1.35倍.靶标危害系数(Target hazard quotients)THQ研究结果表明,何屋和蓑衣坑的蔬菜中几种重金属的THQ值均小于1,说明蔬菜途径摄入重金属对其居民健康风险很低.上坝居民通过蔬菜摄人的Pb和Cd的THQ均大于1,蔬菜途径重金属暴露接触对上坝居民健康具有潜在风险.居住在污染河流横石河下游的上坝居民面临严重的重金属接触暴露风险,显著高于对太平河上游及下游居民的健康风险.

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作 者: 邹晓锦 仇荣亮 周小勇 黄穗虹 ZOU Xiao-jin QIU Rong-liang ZHOU Xiao-yong HUANG Sui-hong  
作者单位:邹晓锦,周小勇,黄穗虹,ZOU Xiao-jin,ZHOU Xiao-yong,HUANG Sui-hong(中山大学环境科学与工程学院,广州,510275)
i tq*F;@vZ8L2},`;L%j0仇荣亮,QIU Rong-liang(中山大学环境科学与工程学院,广州,510275;广东省环境污染控制与修复技术重点实验室,广州,510275) 
刊 名:地理研究  ISTIC PKU
英文刊名:GEOGRAPHICAL RESEARCH 
年,卷(期):2008 27(4) 
分类号:X1 
关键词:重金属   健康风险   日人均摄入量   靶标危害系数  
机标关键词:食用蔬菜重金属含量大宝山矿区居民健康健康风险灌溉水土壤样品限量标准下游污染河流金属接触调查研究可允许河上游系数危害石河韶关广东地区 
基金项目:广东省自然科学基金,教育部跨世纪优秀人才培养计划,985二期环境与污染控制技术创新平台资助项目,国家高技术研究发展计划(863计划) 
下一篇:现代城市化的产业结构演进初探——中外发展研究对比 Industrial structural change in modern urbanization
上一篇:长江口潮滩有机质稳定碳同位素时空分布与来源分析 Temporal-spatial distribution of stable carbon isotope
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