梅州市五华县石灰岩矿区土壤铅污染现状研究及改良对策

On the Contamination Status of Pb in the Limestone Mine Soil in Wuhua County and Countermeasures

对梅州市五华县几个石灰岩矿区周边土壤中铅含量进行了测定,结果表明,污染土壤的铅含量远远超出了国家土壤环境质量三级标准(对土壤生态环境产生影响的最低浓度值),对生态产生影响。根据内梅罗污染指数评定得出,矿区土壤铅污染达到重污染的程度。提出了减轻铅污染对生态环境危害的控制污染源措施和改良对策。

Abstract In this paper, the Pb content of soil was examined and its contamination was estimated in the limestone mines in Wuhua County. The results showed that the Pb content in soil in Wuhua had apparently exceeded the tertius standard of the State Environmental Standard（ the lowest concentration influenced soil eco-environment）, which would affect the ecological environment. According to the Nemero Index, the Pb content in this area amounted to a serious pollution level. Thus, this paper put forward countermeasures in accordance with local conditions to control the pollution sources and reduce the pollution degree.