白云鄂博矿区土壤重金属生物有效性分析研究  

Study on the Bioavailability of Heavy Metals in Soil on Baiyunebo Mining Area

作　　者：段丽丽[1] 王贵[1] 

机构地区：[1]鄂尔多斯职业学院,内蒙古鄂尔多斯017000

出　　处：《广州化工》2016年第10期166-168,共3页GuangZhou Chemical Industry

基　　金：鄂尔多斯职业学院新人项目(EJX1301)

摘　　要：采集白云鄂博矿区表层（0~5 cm）土壤样品11个,用XRF法测定土壤样品中重金属总量,结果显示Pb对环境污染最为严重。为进一步确定Pb对环境的影响,采用改进Tessier连续提取法对样品中重金属Pb各形态含量进行分析。并应用风险评估代码（RAC）对重金属生物有效性进行评价。评价结果显示：街心公园、白云鄂博火车站及南废石堆南侧部分区域重金属Pb显示环境风险较低;采矿区、居民区、距离矿区15公里以外的土壤重金属Pb显示处于中风险。11 topsoil（ 0 ~ 5 cm） samples were collected in Baiyunebo mining area,total amount of heavy metals were measured using XRF. Results showed that Pb had caused the most serious environmental pollution. To further determine the effects of Pb on the environment,the improved Tessier＇ s sequential extraction scheme was used to measure the speciation contents of Pb and the assessment of heavy metals bioavailability in soil was made by the methods of Risk Assessment Code（ RAC）.

关 键 词：白云鄂博 土壤 重金属 生物有效性 

分 类 号：X53[环境科学与工程—环境工程]