大庆城区土壤重金属污染及潜在生态危害研究

本文以大庆主要城区土壤为研究对象，根据实地监测，采用单因子指数评价法及瑞典学者Hakanson提出的潜在生态风险评价法对大庆市的各功能区土壤污染进行了评价，评价结果表明：泡沼区为微污染，农牧业区为轻污染，工业区、生活区、采油区及自然保护区为中度污染；其污染的主要贡献者为镉(Cd)，并且已对城市的生态环境产生了中等生态危害。

Study on Pollution and Potential Ecological Risk Assessment

This paper researched on the soils in Daqing city for example, based on the field survey datas and applying single factor index and the potential ecological risk index introduced by a scholar in Sweden.The results show that steep natural pond area is contaminated slightly, and pastoral area is contaminated lightly;and that industrial district, living area, oil extraction area, the nature reserved all suffer medium contamination.Cd is the main contribution.It has already bad effects on ecological environment of the city.