铜仁万山矿区土壤及主要农作物Hg污染分析  

Investigation of Hg Pollution of Soil and Main Crops from Wanshan Mining Area of Tongren City

作　　者：周曾艳[1] 姚元勇[1] 吴兰艳[1] 顾云[1] 李泓尧 ZHOU Zengyan;YAO Yuanyong;WU Lanyan;GU yun;LI Hongyao(Institute of Applied Chemistry,School of Material and Chemical Engineering,Tongren University,Tongren 554300,Guizhou,China)

机构地区：[1]铜仁学院应用化学研究所,材料与化学工程学院,贵州铜仁554300

出　　处：《铜仁学院学报》2018年第12期122-125,共4页Journal of Tongren University

基　　金：贵州省科技厅联合基金项目(黔科合LH字[2015]7245号);贵州省铜仁市创模办委托课题(Trcmb16-8)

摘　　要：为了评估铜仁万山矿区土壤及农作物Hg污染情况,对该地区土壤、农作物进行随机取样,并采用原子荧光法对汞含量进行测定。结果表明:在土壤污染等级评价方面,万山区张家湾土壤、万山区滑石坡土壤、万山区矿山公园土壤(深度分别为20cm和10cm)汞含量(mg/kg)分别为:40.26、11.87、43.00和82.14。另外,万山区土壤重金属污染污染指数(Pi)均大于3.0,分别为40.26、11.87、43.00、82.14,属于重度污染等级。同时,万山张家湾区域的番茄、白汉菜、白菜、玉米、红皮四季豆及四季豆(普通)的汞含量(mg/kg)分别为0.5151、0.1507、0.248、0.5229、0.0735及0.062;万山滑石坡区域的空心菜、白菜、辣椒、玉米、四季豆及豇豆中的汞含量(mg/kg)分别为0.168、0.2229、0.5219、0.0397、0.0073及0.0025。说明万山矿区土壤及农作物的Hg重金属污染情况严重。To evaluate the soil environmental pollution and the food safety risk of crops in mining area.Soil and crops were sampled randomly,and mercury ion content was determined by atomic fluorescence spectrometry.The results showed that the mercury content(mg/kg)of Zhangjiawan soil,talc slope soil and Mining Park Soil in Wanshan area were 40.26,11.87,43.00 and 82.14,respectively.In addition,the soil heavy metal pollution index(Pi)of Wanshan District was 40.26,11.87,43.00 and 82.14,respectively,which belonged to the grade of heavy pollution.At the same time,in the aspect of food safety evaluation of crops,the mercury content(mg/kg)of tomato,Chinese cabbage,cabbage,maize,red-skinned kidney bean and kidney bean in Zhangjiawan area were 0.5151,0.1507,0.248,0.5229,0.0735 and 0.062,respectively.Hollow cabbage and white cabbage in Wanshan talc slope area were 0.5151,0.1507,0.248,0.5229,0.0735 and 0.062,respectively.Mercury content(mg/kg)in vegetables,peppers,corn,kidney beans and cowpeas were 0.168,0.2229,0.5219,0.0397,0.0073 and 0.0025,respectively.It concluded that the heavy metal pollution of Hg in soil and crops in Wanshan mining area is serious.

关 键 词：万山 土壤 环境污染 农作物 汞 

分 类 号：X833[环境科学与工程—环境工程]