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基于污染场地土壤中重金属人体可给性的健康风险评价

姜 林 彭 超 钟茂生 姚珏君 夏天翔 贾晓洋 韩 丹

姜 林, 彭 超, 钟茂生, 姚珏君, 夏天翔, 贾晓洋, 韩 丹. 基于污染场地土壤中重金属人体可给性的健康风险评价[J]. 环境科学研究, 2014, 27(4): 406-414.
引用本文: 姜 林, 彭 超, 钟茂生, 姚珏君, 夏天翔, 贾晓洋, 韩 丹. 基于污染场地土壤中重金属人体可给性的健康风险评价[J]. 环境科学研究, 2014, 27(4): 406-414.
JIANG Lin, PENG Chao, ZHONG Mao-sheng, YAO Jue-jun, XIA Tian-xiang, JIA Xiao-yang, HAN Dan. Health Risk Assessment Based on Bioaccessibility of Heavy Metals in Contaminated Sites[J]. Research of Environmental Sciences, 2014, 27(4): 406-414.
Citation: JIANG Lin, PENG Chao, ZHONG Mao-sheng, YAO Jue-jun, XIA Tian-xiang, JIA Xiao-yang, HAN Dan. Health Risk Assessment Based on Bioaccessibility of Heavy Metals in Contaminated Sites[J]. Research of Environmental Sciences, 2014, 27(4): 406-414.

基于污染场地土壤中重金属人体可给性的健康风险评价

基金项目: 北京市科学技术委员会重大项目(D08040000360000);中意污染场地管理国际合作项目

Health Risk Assessment Based on Bioaccessibility of Heavy Metals in Contaminated Sites

  • 摘要: 模拟测试土壤中重金属在人体胃肠系统中的溶解量(即人体可给量),并以此作为暴露剂量进行健康风险评估,能在一定程度上克服基于总量评估导致结果过于保守的问题. 该文综述了国内外目前已有的可给性测试方法,着重介绍了PBET(physiologically based extraction test)、SBET(simplified bioaccessibility extraction test)、RIVM(rijksinstituut voor volksgezondheid en milieu)及UBM(the unified bioaccessibility method)这4种常用方法的原理及主要参数取值;对目前测试方法在参数(pH、提取时间、提取液组分)取值、模拟过程与环境(消化过程、模拟环境、食物、微生物)存在的问题进行了分析;进一步介绍了基于重金属人体可给性的健康风险评估方法. 建议应在以下4个方面进一步开展研究:①基于我国人体胃肠生理特征建立土壤中重金属可给性的标准测试方法;②研究影响重金属可给性的关键因素并建立经验预测模型;③结合in vivo测试,验证方法的准确性,耦合结肠癌细胞跨膜转运测试模型,研究测试重金属的人体有效性的标准方法;④建立基于重金属可给性的层次化风险评估方法,完善现有风险评估技术导则.

     

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出版历程
  • 收稿日期:  2013-08-09
  • 修回日期:  2013-12-13
  • 刊出日期:  2014-04-25

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