中文摘要：

开展环境风险评价是实现污染场地环境风险管理的有效手段。对污染场地环境风险的评价,应当以风险受体为核心,具有主观性、客观性、针对性、差异性、动态性等属性。污染场地环境风险的特征、风险受体的特征、环境风险管理水平以及社会经济发展水平,皆对评价标准产生影响,以风险数值化评价方法为基础建立污染场地环境风险评价结构模式,有助于管理风险、控制风险、降低风险,保障污染场地环境安全。

英文摘要：

The assessment to environmental risk is the effective method to manage risks in contaminated sites.To design the assessment standard of environmental risks on contaminated sites, it is necessary to consider the subjective, objective, purposeful, distinguishing and dynamic nature of risk recipients. The impact factors also include the characteristics of contaminated sites risks, the characteristics of risk recipients, the level of risk management and economical development. It will be helpful to manage, control and decrease the risks to have an assessment standard based on the numbered method of environmental risks on contaminated site.