| 摘要: |
| 为了解铅锌矿区采选活动对周边河流沉积物的影响，以南方某县铅锌采选区域为研究对象，
采用典型抽样法在河流中布设 26 个沉积物样点，测定 Hg、Cd、As、Pb、Cu、Ni、Cr、Zn 的含量，分
析其空间分布特征，应用污染负荷指数法和潜在生态风险指数法开展生态环境风险评价。结果表明，Cu、
Zn、Pb、Ni、As、Cd 高于福建省土壤背景值；污染负荷指数为 0.97，临近中等污染；全流域潜在生态风
险总体较低，但在铅锌采选企业集中分布区域存在高风险区域。 |
| 关键词: 重金属 沉积物 铅锌矿区 污染评价 生态风险评价 |
| DOI： |
| 分类号: |
| 基金项目: |
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| Pollutions and Potential Ecological Risk of Heavy Metals in River Sediments around Pb-Zn Mines in Fujian Province |
|
lin mei hao
|
|
Fujian Environmental Protection Design Institute Co., Ltd.
|
| Abstract: |
| Taking Pb-Zn mines in a county in the south as the research object, 26 sediment sampling points
were arranged in the river by typical sampling method. The contents of Hg, Cd, As, Pb, Cu, Ni, Cr, and Zn were
determined. The spatial distribution characteristics of each element are analyzed. Pollution load index method and
potential ecological risk index method were used to evaluate ecological environmental risk. The results showed
that the contents of Cu, Zn, Pb, Ni, As and Cd were higher than the background values of soil in Fujian Province.
The pollution load index is 0.97, which is close to medium pollution. The potential ecological risk of the whole
basin is generally low, but there are high-risk areas in the concentrated distribution area of Pb-Zn mines areas. |
| Key words: heavy metal sediments lead-zinc mining pollution evaluation ecological risk assessment |
