应用地积累指数评价城市水源地水体中底泥的重金属污染  

Applying Geoaccumulation Index to Assess Heavy Metal Pollution in Sediment of Urban Water Source

作　　者：王坤 黄明 陈富荣[3] 刘绍根 WANG Kun;HUANG Ming;CHEN Furong;LIU Shaogen(Anhui Jianzhu University,Hefei 230601,China;Anhui Provincial Key Laboratory of Environmental Pollution Control and Resource Reuse,Hefei 230601,China;Geological Survey of Anhui Province,Hefei 230001,China)

机构地区：[1]安徽建筑大学环境与能源工程学院,安徽合肥230601 [2]环境污染控制与废弃物资源化利用安徽省重点实验室,安徽合肥230601 [3]安徽省地质调查院,安徽合肥230001

出　　处：《洛阳理工学院学报（自然科学版）》2020年第4期14-17,共4页Journal of Luoyang Institute of Science and Technology：Natural Science Edition

基　　金：国家水体污染控制与治理科技重大专项(2017ZX07603-003-05)

摘　　要：水域受到污染,其水中污染物可沉淀并被底泥吸附而蓄集,在物理、化学等条件发生改变时,可能会重新释放,成为二次污染源。应用地积累指数评价合肥饮用水源地流域底泥的重金属污染情况,结果表明:入董铺水库河流底泥中除1个采样点As、4个采样点Cd为轻度污染外,采样点的As、Cd、Hg、Pb、Cu、Zn、Cr、Ni均为清洁,董铺水库近东部坝体处除Pb、Cu、Cr为清洁外,As、Cd、Hg、Zn、Ni为轻度污染;入大房郢水库河流底泥中除1个采样点As、Pb、Ni,1个采样点Hg为轻度污染,采样点的As、Cd、Hg、Pb、Cu、Zn、Cr、Ni均为清洁,大房郢水库除1个采样点Cd轻度污染外,As、Hg、Pb、Cu、Zn、Cr、Ni为清洁。可见,董铺水库近东部坝体及其上游北侧支流底泥的重金属污染应引起足够重视。When the water area is polluted,the pollutants in the water can precipitate and be adsorbed by the sediment,which may be released again and become the secondary pollution source when the physical and chemical conditions change.Geoaccumulation index is applied to assess heavy metal pollution in sediment of Urban Water Source in Hefei.The results show that the As,Cd,Hg,Pb,Cu,Zn,Cr,Ni in the sediment of the river into Dongpu reservoir are all clean except that one sampling point and four sampling points Cd are slightly polluted.The As,Cd,Hg,Pb,Cu,Zn,Cr,Ni in the sediment of Dongpu reservoir near the eastern dam are slightly polluted except that the Pb,Cu,Cr are slightly polluted.In addition to one sampling point As,Pb,Ni and one sampling point Hg is slightly polluted,and the As,Cd,Hg,Pb,Cu,Zn,Cr,Ni in the sediment of the river into Dafangying reservoir are all clean.In addition to one sampling point Cd,As,Hg,Pb,Cu,Zn,Cr,Ni in the Dafangying reservoir are slightly polluted.It can be seen that the heavy metal pollution in the sediment of Dongpu reservoir near the eastern dam body and its north upstream tributary should be paid more attention.

关 键 词：地积累指数 城市水源地 底泥 重金属 二次污染 

分 类 号：X52[环境科学与工程—环境工程]