铅锌矿产资源开发重金属污染风险评价

在论述环境风险评价的概念、理论和方法的基础上,通过对某典型铅锌矿山重金属污染程度、重金属毒性响应系数和生态危害系数的计算与探讨,建立了铅锌矿山重金属生态风险评价指标体系.根据所建立的指标体系,计算了每个样点的生态风险指数,结果认为该矿山总体环境质量很差,重金属污染极其严重.

Risk assessment practice of heavy metals pollution in lead-zinc mining activities

The assessment of environmental risk is an important study field of environmental science management. Nowadays, schoiars in China and abroad have given it a lot of study, and put forward many practical methods of environmental risk assessment. This paper discussed the concept, theory, method of environmental risk assessment. And, it constructed the index system of assessment of heavy metals ecological risk. Based on the calculation and exploration of heavy metal pollution level, toxic response coefficient and ecology haml coefficient, it acquired the ecology harm coefficient of different soils near the mine. The analysis result thought the general environmental quality is much deteriorated, the heavy metals risk is greatly high.