高寒干旱区某冶炼厂周边土壤及农作物重金属污染评价  

Estimation of Heavy Metal Pollution in Soil and Crops Surrounding the Smelting Factory in Alpine Arid Area

作　　者：张春萍[1] 盛海彦[2,3] 邬建红[2] 聂秀青[2] 张乐[2] 刘龙飞[2] 罗少辉[2] 卢素锦[4] 田丰[2] 

机构地区：[1]青海大学成人教育学院,西宁810016 [2]青海大学农牧学院,西宁810016 [3]中国科学院生态环境研究中心,北京100085 [4]青海大学生命科学系,西宁810016

出　　处：《湖北农业科学》2013年第15期3504-3506,共3页Hubei Agricultural Sciences

基　　金：青海省科技厅项目(2009-J-803);国家大学生创新项目(101074321)

摘　　要：运用单因子污染指数、内梅罗指数及潜在生态风险指数对青海省高寒干旱区某金属冶炼厂周围土壤重金属污染状况进行了评价。结果表明,该区域土壤中的Zn、Cd含量都出现了不同程度的超标,少数样点Cd污染十分严重,土壤中的Cr、Cu、Pb、As未超标。在所采集的马铃薯、小麦、油菜样品中,有部分农产品Cd含量超出了国家规定的食品安全限制标准,存在一定的安全风险。The pollution status of heavy metal elements in soil surrounding a smelting factory in Qinghai province was investi- gated and evaluated through single factor pollution index method, Nemerow pollution index method and potential ecological risk index method. The results showed that the content of heavy metal Zn and Cd in soil of that area exceeded the standard to different degrees; and at some spots Cd pollution was very serious. Content of heavy metal Cr, Cu, As and Pb was ap- propriate to the standard. In some of the crop samples such as potato, wheat, rape, concentration of Cd exeessed the nation- al required food security limits, had certain safety risk.

关 键 词：土壤 污染 评价 金属冶炼 高寒干旱区 

分 类 号：X53[环境科学与工程—环境工程]