COMPARISON OF REQUIREMENTS FOR ENVIRONMENTAL PROTECTION AND A MODEL FOR EVALUATING CONTAMINATED SITES IN LITHUANIA
介绍了欧洲国家评估污染场地的经验,并开发了一个包含初步和详细调查两阶段的立陶宛污染场地评估模型,该模型考虑有机化学物质和金属,基于土壤有机质和黏土含量计算污染水平,用于风险评估。
This work is aimed at addressing attention to the situation of contaminated sites and emphasizing importance and need for their rehabilitation. The study presents the experience gained by European countries evaluating contaminated sites and rehabilitation framework. A model of assessing contaminated sites in Lithuania consisting of two main stages – preliminary and detailed investigation has been developed. The first one is used for collecting preliminary information on the contaminated site and for evaluating the need for detailed analysis. The second is subjected to a comprehensive risk assessment of the site shifting focus on the environment and human health. The model for evaluating contaminated sites involves organic chemical materials and metals. Risk assessment depends on the sensitivity of a site to contamination. Equations for establishing the level of contamination involve the content of soil organic matter and clay. Correction coefficients used for calculating the level of contamination have been based on statistical analysis and experience gained by the EU countries.