根据以来源为导向的健康风险评估模型,优先考虑地下水中的重金属控制因素
Wenjing Han1, Yujie Pan2, Emily Welsch3
1Geological Survey Research Institute, China University of Geosciences, Wuhan 430074, China.
Ecotoxicology and environmental safety
|November 4, 2023
概括
确定地下水中重金属 (HM) 的优先控制因素对于有效管理至关重要. 工业活动,农业活动和 (As) 被发现是需要有针对性的缓解策略的关键因素.
科学领域:
- 环境科学 环境科学
- 水文地质学 水文地质学
- 毒理学 毒理学 毒理学
背景情况:
- 地下水中的重金属对生态系统和人类健康构成重大风险.
- 有效地管理地下水污染需要对HMS优先控制因素进行分类.
- 评估与HM污染相关的健康风险对于公共安全至关重要.
研究的目的:
- 识别和分类地下水中重金属的优先控制因素.
- 为了比较七个HM (Cu,Pb,Zn,Cr,Ni,As和Fe) 的污染源和健康风险.
- 为决策者提供有针对性的HM污染管理的见解.
主要方法:
- 在干旱和潮湿季节从武汉市收集了86个地下水样本.
- 应用以源为导向的健康风险评估模型.
- 对七种重金属进行分析:Cu,Pb,Zn,Cr,Ni,As和Fe.
主要成果:
- 地下水样本显示出高水平的 (As) 和铁 (Fe).
- 污染源因季节性变化而变化:工业和农业活动加上雨季的自然来源,在干季增加了国内排放.
- 工业活动 (74.10%湿季),农业活动 (53.84%干季) 和 (As) 被确定为优先控制因素.
结论:
- 除了,工业和农业活动是研究区域重金属地下水污染的主要驱动因素.
- 了解污染源的季节性变化对于有效的地下水管理至关重要.
- 专注于确定优先因素的有针对性的管理策略可以降低成本,提高重金属污染减缓的有效性.
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