江西农业学报2016，Vol.28Issue(12)：110-114,5.DOI:10.19386/j.cnki.jxnyxb.2016.12.22
基于农田土壤重金属生物可给性的人体健康风险评价
Assessment of Human He alth R isk from Heavy Metals in Farmland Soil Based on Their Bioaccessibility
摘要
Abstract
The bioaccessibilities of 7 kinds of heavy metals in farmland soil in Guangxi were studied by using SBET method , and the risks of the oral intake of these heavy metals to the health of children and adults were assessed .The results indicated that the average bioaccessibility of Cd, Cu, Zn, Ni, Pb, As and Cr in the soil was 70.55%, 25.72%, 10.89%, 10.81%, 7.78%, 0.93%and 0.71%, respectively.Under the condition of not modifying the human health risk assessment results by the bioaccessi-bility, the total non-carcinogenic risk (HI) and total carcinogenic risk (Rt) of soil heavy metals to children were 2.47 and 6.12× 10-5, respectively, and the HI and Rt to adults were 0.32 and 4.01×10-5, separately, suggesting that the heavy metals in the farmland soil had a great risk to the health of children .After modifying the human health risk assessment results by the bioaccessi-bility, the non-carcinogenic risk and carcinogenic risk of soil heavy metals to both children and adults were decreased by a large margin, but they still had a certain risk to the health of children .关键词
农田土壤/重金属/生物可给性/健康风险/评价Key words
Farmland soil/Heavy metal/Bioaccessibility/Health risk/Assessment分类
农业科技引用本文复制引用
尹娟,邓超冰,王晓飞,许桂苹,邓渠成..基于农田土壤重金属生物可给性的人体健康风险评价[J].江西农业学报,2016,28(12):110-114,5.基金项目
广西自然科学基金项目“西江流域水环境重金属污染机制与调控”（2013GXNSFEA053001）；广西自然科学基金重大项目“基于镉、砷污染农田安全利用的生态修复研究”（2015GXNSFEA139001）；广西财经学院管理科学与工程学院开放性课题“基于无人机遥感的内陆水环境应急监测研究”（ GK2015009）。 （）
