第45卷第7期2020年7月
Vol.45No.7
July2020环境科学与管理
ENVIRONMENTAL SCIENCE AND MANAGEMENT
文章编号:1674-6139(2020)07-0185-06
水源地周边土壤重金属污染评估及源解析研究
water pollution
杨泓蕊1,俞洁彳,王飞儿巴傅智慧彳
(1.浙江大学环境与资源学院,浙江杭州310058;2.浙江省水体污染控制与环境安全技术重点实验室,浙江杭州310058;
3.浙江省环境监测中心,浙江杭州3100⑵
摘裏:土壤重金属污染评估是土壤质量管理及生态风险管控的重要内容,也是饮用水安全管控的重点之一。
论文通过对浙江塔范围内93个水源地周边土壤样殆采集,测定其中的8种重金属(镉、汞•、碑、铅、错■、铜、锌和
練)含量。采用单因子指数和Hankanson潜在生态风险指数法对土壤重金属污染进行评估,并采用多元统计分
析方法分析重金属的可能来源。结果表明,研究区域土壤质量总体较好,整体污染水平和生态风险均处于较低
水平。
关键词:重金属;土壤;污染评估;源解析
中图分类号:X825文猷标志码:A
Pollution Assessment and Source Apportionment
of Heavy Metal in Soil around Water Resources
Yang Hongrui1,Yu Jie3,Wang Feier1'2,Fu Zhihui3
(1.College of Environmental and Resource Sciences,Zhejiang University,Hangzhou310058,China;
2・Zhejiang Provincial Key Laboratory for Water Pollution Control and Environmental Safety,Han^diou310058,China;
3.Zhejiang Environmental Monitoring Center,Hangzhou310012,China)
Abstract:Soil heavy metal pollution assessment is important in soil quality and ecological risk management,especially for the soil environment surrounding potable water resource.The concentrations of eight heavy metals including Cd,Hg,As,Pb,Cr, Cu,Zn and Ni in soils surrounding93potable water sources in Zhejiang Province were sampled and analyzed.The pollution level and ecological risk were evaluated with single factor index and Hankanson index.Multivariate statistical analysis was adopted to ascertain the source of heavy metal.The result showed that the quality of soil in study area overall was good,with low levd of pol­lution and ecological risk.
Key words:heavy metal;soil;assessment of pollution;source^>portionment
重金属具有毒性、难降解以及易积累的特点,土壤重金属污染一直是环境安全关注的重点⑴。为了解土壤中重金属污染水平及生态风险,人们提出
收稿日期:2020-04-11
基金项目:国家水体污染控制与治理科技重大专项(2017ZX07206-001);浙江省环保/用研计划项目(2018A013)
作者筒介:杨瀏蕊(1997-),女,硕士在读,研究方向:环境规划与管理
通讯作者:王7L 了多种指数方法,包括单因子指数、地累积指数、生态风险指数等⑵。由于土壤重金属污染来源复杂,识别土壤重金属来源,可以有针对性采取相应的对策,防范环境风险。由于饮用水周边环境安全也是饮用水安全的重要保障,研究以浙江省范围县级集中式饮用水源地为例,利用指数方法评估水源地周边土壤中重金属污染水平及生态风险,并分析土壤中重金属的可能来源,为水源地环境风险防控提供
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