Harmful evaluation of heavy metals from soil layer to the groundwater: Take the Jilin Hunchun Basin as an example  

作　　者：Xiao-Dong Guo Qiang Liu Hui-Rong Zhang Xu-Fei Shi Chuan-Yu Qin Zhi-Qiang Zhang 

机构地区：[1]Shenyang Geological Survey Center,China Geological Survey,Ministry of Natural Resources,Shenyang 110034,China [2]Key Laboratory of Black Land Evolution and Ecological Effects,Shenyang 110034,China [3]New Energy and Environment College,Jilin University,Changchun 130026,China [4]Jilin Hydrogeological Survey Institute,Changchun 130026,China

出　　处：《China Geology》2024年第1期116-124,共9页中国地质（英文）

基　　金：supported by the project of China Geology Survey(12120115032801,DD20190340)。

摘　　要：The continuous enrichment of heavy metals in soils has caused potential harm to groundwater.Quantitative methods to evaluate the harm of heavy metals in soil to groundwater are lacked in previous studies.Based on the theory of groundwater circulation and solid-liquid equilibrium,a simple and easy-touse flux model of soil heavy metals migrating to groundwater is constructed.Based on groundwater environmental capacity,an innovative method for evaluating the harm of heavy metals in soil to groundwater is proposed,which has been applied in Hunchun Basin,Jilin Province,China.The results show that the fluxes of soil heavy metals into groundwater in the study area are Zn,Cu,As,Pb,Cd,Ni,and Hg in descending order.The content of heavy metals in groundwater(As,Hg,Cu,Pb,Zn,Ni,and Cd)in most areas has not risen to the threshold of environmental capacity within 10 years.The harm levels of soil heavy metals to groundwater in the most townships soils are at the moderate level or below.This evaluation method can quantify the flux of soil heavy metals into groundwater simply and quickly,determine the residual capacity of groundwater to heavy metals,evaluate the harm level of soil heavy metals to groundwater,provide support for relevant departments to carry out environmental protection of soil and groundwater,and provide a reference to carry out similar studies for related scholars.

关 键 词：Soil heavy metals As+Hg+Cu+Pb+Zn+Ni+Cd Environmental capacity GROUNDWATER Hazard degree Migration flux model Agricultural geological survey engineering Hunchun Basin Jilin Province 

分 类 号：X523[环境科学与工程—环境工程]