贵州省某卡林型金矿附近土壤中As污染现状及原因初探

Arsenic pollution situation and reason of the soil near a carlin gold mine in Guizhou

以贵州省某卡林型金矿附近土壤为研究对象,分别对矿区内、矿区附近以及矿区所在县城土壤进行垂直剖面取样,共采集了13个剖面共65个土壤样品。通过对65个土壤样品中As的含量进行分析,发现该金矿附近土壤中As的含量不仅远远高于贵州土壤中As元素平均含量,且部分已明显高于保障农林业生产和植物正常生长的土壤临界值,已存在一定程度As污染,应引起一定重视。

The soil near a carlin gold mine in Guizhou was chosen as the research object. The 65 soil samples from 13 vertical profile were chosen in or near the gold mine and the county town,and the arsenic contents of these samples were analyzed. The results showed that arsenic contents in the soils around the gold mine were higher than the average value in the soils of Guizhou,and most of them were higher than the critical value of soil arsenic for ensuring plants growing normally. more attention should be paid to the soil arsenic pollution near the gold mine.