湘西矿区周边土壤铅污染潜在生态风险评价  

Evaluation of the Potential Ecological Risk of Pb in the Mining Areas of Western Hunan

作　　者：张鹤鹑[1] 

机构地区：[1]吉首大学,湖南吉首416000

出　　处：《安徽农业科学》2013年第18期7808-7809,7815,共3页Journal of Anhui Agricultural Sciences

基　　金：湖南省教育厅科研项目(11C1041);湖南吉首大学引进人才科研启动基金资助项目(jsdxkyzz201007)

摘　　要：对湘西锰矿区和铅锌矿区周边土壤中重金属铅的含量进行测定,采用美国最新的法定重金属污染评价方法TCLP法对土壤铅污染状况进行了评价.结果表明,土壤中Pb的有效态含量为0.21 ～4.80 mg/kg,未超过相应的国际标准.湘西锰矿区和铅锌矿区周边土壤中的重金属Pb环境质量尚属安全,但越靠近矿区Pb污染对周围居民人体健康的危害风险越大.The contents of lead in surrounding soil of manganese and lead-zinc mining area in western Hunan were determined and the potential ecological risk of lead pollution was accessed with the latest statutory assessment method TCLP（Toxicity characteristic leaching procedure ） of USA.The results showed that the content of available Pb in soil was 0.21-4.80 mg/kg,no more than the corresponding international standards.The Pb environment is safe in surrounding area of manganese and lead-zinc mining area in western Hunan,but closer to the Pb pollution area,the harm risk to surrounding residents increased.

关 键 词：土壤 铅污染 风险评价 

分 类 号：S513.6[农业科学—作物学]