信江流域地表水重金属来源及污染风险分析  

Sources of Heavy Metals and Related Health Risk of Surface Water in Xinjiang River Basin

作　　者：葛勤 高柏[1] 林聪业 韩洁 李俊 陈雨洁 张仪其 GE Qin;GAO Bai;LIN Cong-ye;HAN Jie;LI Jun;CHEN Yu-jie;ZHANG Yi-qi(School of Water Resources and Environmental Engineering,East China University of Technology,Nanchang 330013,China;Fundamental Science on Radioactive Geology and Exploration Technology Laboratory,Nanchang 330013,China)

机构地区：[1]东华理工大学水资源与环境工程学院,南昌330013 [2]放射性地质与勘探技术国防重点学科实验室,南昌330013

出　　处：《科学技术与工程》2023年第12期4984-4994,共11页Science Technology and Engineering

基　　金：江西省自然科学基金(20212BAB213007,20212BAB213006);国家自然科学基金(42202288,42272301);放射性国防重点实验室开放性基金(RGET1904);江西省教育厅科学技术项目(GJJ190396)。

摘　　要：探究信江流域地表水重金属的来源及污染特征,从地表水-地下水资源的角度,运用多元统计和美国环保署(United States Environmental Protcction Agency,USEPA)健康风险评价模型分析水体重金属的分布特征、污染来源及其对人体健康产生的风险。结果表明:地表水与地下水9种重金属初始来源不同,但局部的水力联系造成水体重金属出现同步富集现象;地表水重金属Mn、Fe、Cu和Zn主要来自工业生产废水、废渣排放,Cd、Cr和Sr主要代表农业、渔业和生活废水排放等人为污染源,Ba和V主要源于矿物的自然风化侵蚀溶解作用;致癌重金属Cr和Cd高出可接受健康风险值2~3个数量级,是人体健康需要重点考虑的一级污染物,非致癌重金属V和Mn也需要特别关注。研究成果为南方集中式地表水源地保护和安全评价提供了参考依据。Aims to explore the sources and pollution characteristics of heavy metals in surface water in Xinjiang River Basin.Multivariate statistics and USEPA(United States Environmental Protection Agency)health risk assessment model were used to analyze the distribution characteristics,pollution sources and risks of heavy metals in surface water to human health.The results show that sources of 9 heavy metals in surface water and groundwater are different,but the local hydraulic connection between surface water and groundwater causes the simultaneous enrichment of heavy metals in waters.Multivariate statistical analysis shows that Mn,Fe,Cu and Zn mainly originated from industrial production wastewater and waste residue,and Cd,Cr and Sr are mainly attributed to agriculture,fishery and domestic pollutions,while Ba and V may be derived from natural weathering,erosion and dissolution of minerals.Further,the carcinogenic risk of Cr and Cd is 2 to 3 orders of magnitude higher than the acceptable level.It suggests that Cr and Cd in surface water should be considered as primary pollutants for human health.Although,more attention also should be paid to the non-carcinogenic risk of V and Mn.The research results provide a reference basis for the protection and safety evaluation of centralized surface water sources in South China.

关 键 词：流域 水体 重金属 来源 健康风险 

分 类 号：P642.5[天文地球—工程地质学]