摘要
对淮河流域阜阳段3条支流(济河、茨淮新河和颍河)6个点位进行了20种重金属采样分析测定,结果显示:3条河流中Be、Cd、Tl、Cr^(6+)均未检出,Al的浓度在840~2213μg/L,Mn的浓度在42.32~219.9μg/L,Fe的浓度在587~2099μg/L,Ba的浓度在131~145μg/L,其余重金属浓度均不超过40μg/L。Mn、Ni、Zn、Mo、Pb在3条河流中总含量的差别很大且这几种元素都主要存在于济河中。3条河流水体中悬浮态重金属主要有Al、TCr、Mn、Fe、Co、Cu、Mo,可滤态重金属主要有V、Ni、Zn、Ba、Pb、As、Sb。同时利用内梅罗综合指数法、地累积指数法及潜在生态危害指数(RI)法对水体重金属污染进行了评价。结果表明:内梅罗指数显示济河I值为1.58,属于轻污染,主要污染物是Fe、Mn、Ni;茨淮新河和颍河I值分别为3.94和3.66,属于重污染,主要污染物为Fe。
There are three tributaries at Fuyang section of Huai River,including Ji River,Cihuaixin River and Ying River.In this paper,the surface water samples were collected from six sites of these tributaries,and the characteristics of 20 heavy metals were analyzed.The results showed that Be,Cd,Tl and Cr(Ⅵ)had not been detected,while the concentration of Al is 840-2213μg/L;the concentration of Mn was 42.32-219.9μg/L;the concentration of Fe was 587-2099μg/L and the concentration of Ba was 131-145μg/L.The concentration of the other heavy metal was no more than 40μg/L.The total levels of Mn,Ni,Zn,Mo and Pb in the three rivers were remarkably different and were mainly detected in Ji River.The suspended metals were Al,Cr,Mn,Fe,Co,Cu and Mo.The filtered metals were V,Ni,Zn,Ba,Pb,As and Sb.The heavy metal pollution of the rivers was evaluated by Nemerow composite index,Geoaccumulative index and Hakanson Potential ecological harm index.For Ji River,the Nemerow composite index was 1.58,which belongs to slight pollution.The main pollutants were Fe,Mn and Ni.For Cihuaixin River and Ying River,the Nemerow composite indexex were 3.94 and 3.66,both of which belonged to heavy pollution.The main pollutant was Fe.
作者
舒治冲
程晨
Shu Zhichong;Cheng Chen(Wuhan Ecological Environment Monitoring Center,Department of Ecology and Environment of Hubei Province,Wuhan,Hubei 430000,China)
出处
《绿色科技》
2023年第10期157-160,共4页
Journal of Green Science and Technology
关键词
淮河
重金属
地表水
评价
Huanhe river
heavy metal
surface water
assessment
作者简介
舒治冲(1987-),男,硕士,工程师,主要从事环境监测工作。
