欧盟针对农药对水生生物的初级风险评价——标准物种不确定因子法
Primary Aquatic Risk Assessment of Pesticides in European Union: Uncertainty Factor Approach of Standard Species
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摘要: 建立适宜的农药环境风险评价体系,有利于评价农药对环境的影响,控制农药带来的环境污染。欧盟具有丰富的农药风险评价经验和完善的评价体系,论文针对欧盟的初级风险评价工作中水生生物风险评价的标准物种不确定因子法进行了综述,阐述了其评价原则与方法,总结了预测环境浓度(predicted environmental concentration,PEC)和法规允许浓度(regulatory acceptable concentration,RAC)的建立,分析了存在的问题并提出了发展方向,以期为中国农药风险评价提供技术支持。针对标准物种不确定因子法过于严格的情况,并考虑中国农药环境风险评价的现状,建议在熟悉掌握初级风险评价技术的基础上,逐步推动高级风险评价。Abstract: It is important to build up an appropriate risk assessment system to evaluate the side-effect of pesticides on the environment in order to control the pesticide pollution.The European Commission(EC) has built up scientific systems in aquatic risk assessment of pesticides.Focusing on the uncertainty factor approach using standard test species in aquatic risk assessment of pesticides,this paper summarized the principle and method of EC tier system and the requirements to establish the levels of predicted environmental concentration(PEC) and regulatory acceptable concentration(RAC).Higher tier risk assessment was suggested for pesticides when the uncertainty factor approach using standard species was found to be excessively strict.And considering the current situation of China,it is necessary to master the primary risk assessment system first and then gradually carry out higher tier risk assessment.
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