摘要
通过测定平顶山市四县一市即叶县、宝丰县、鲁山县、郏县、舞钢市,主要农田土壤中的重金属砷、汞、铜、铅、锌、铬、镉、镍的含量,利用单因子污染指数法和内梅罗综合污染指数法,结合国家标准(GB15618-1955),进行重金属污染评价,结果表明:以国家标准的评价体系中,平顶山市农田土壤总体综合污染指数为0.4,污染水平为清洁(安全),单因子污染指数为镍〉砷、锌、铜、铬〉镉〉铅、汞,污染水平为无污染;不同地区的综合污染指数为叶县〉宝丰县〉舞钢市〉郏县〉鲁山县,污染水平均为清洁(安全);不同地区单因子污染指数叶县为镍〉铜、铬〉砷、锌〉镉〉铅〉汞,宝丰县为镍〉铜、锌〉铬、砷〉镉、铅、汞,鲁山县为镍〉铜〉铬、镉、砷、锌〉铅〉汞,舞钢市为镍〉铜、锌、铬〉镉、砷〉铅、汞,郏县为镍〉砷、锌〉铜、铬〉镉、铅、汞,污染水平均为无污染;平顶山市农业区农田土壤重金属污染等级为安全级。
The heavy metal（As, Hg, Pb, Cu, Zn, Cr, Cd and Ni）pollutionwas evaluated in farmlandsoil atPingdingshanCity （Ye County, Baofeng County, Jia County and Wugang County）by using the methods of singlefactor pollution index and Nemerow integratedindex according to the national standard（GB15618-1995）. The result indicatedthat,the general integrated pollution index of the farmland soil at Pingdingshan city was 0.4,which meant the level of pollution was clean （safety）. And the single factor indexof each metal was Ni〉As, Zn, Cu, Cr〉Cd〉Pd, Hg, the level of pollution was no pollution. The general integrated pollution index of each county was Ye County〉 Baofeng County〉Wugang County〉Jia xian County 〉Lushan County, the level of pollution was clear （safe）. The single factor indexof each metal was Ni〉Cu, Cr〉As, Zn〉Cd〉Pd〉Hgat Ye County, Ni〉Cu, Zn〉Cr, As〉Cd, Pd, Hg at Baofeng County, Ni〉Cu〉Cr, Cd, As, Zn〉Pd〉Hg at Lushan County, Ni〉Cu, Zn, Cr〉Cd, As〉Pd, Hg at Wugang County, Ni〉As, Zn〉Cu, Cr〉Cd, Pd, Hg at Jia County, the level of pollution was no pollution. In conclusion, the level heavy metals pollution in farmland soil inPingdingshan City was safety.
出处
《黑龙江科技信息》
2014年第23期97-98,共2页
Heilongjiang Science and Technology Information
关键词
土壤
重金属
单因子污染指数法
综合污染指数
soil
heavy metal
pollution evaluation
single factor pollution index
integrated pollution index
