利用COMMPS和DYNAMEC方法开展我国海水环境优先关注污染物研究

Research on environmental priority pollutants in seawater of China by COMMPS and DYNAMEC methods

为提升我国海洋环境污染管控的科学性和精准性,本研究结合我国海洋环境污染现状,充分借鉴欧盟基于监测和模型的联合优先排序方法(COMMPS)及动态选择和优先排序机制(DYNAMEC),推荐了我国海水环境优先关注污染物。以我国优先控制化学品名录和国际海洋保护组织优先关注的污染物为候选物质,从人类健康效应赋分角度对DYNAMEC和COMMPS方法进行改进,本研究建立了基于环境暴露指数、环境效应指数和优先级指数的海水环境优先关注污染物筛选方法,通过持久性-生物累积性-毒性初筛和优先级排序二次筛选等过程合计推荐68种我国海水环境优先关注污染物,具体包括11种金属和类金属化合物、11种多环芳烃化合物、8种有机卤化物、24种农药、14种其他有机化合物,涵盖了双酚A、壬基酚和有机磷酸酯等新污染物。相关研究结果可为不同海洋环境中有毒有害化学品污染问题识别、基准和标准制修订、风险评估、污染治理等提供重要的方法学支撑,为海洋生态环境管理提供科学参考。

In order to improve the scientificity and accuracy of marine environmental pollution management and control,considering the current pollution situation in marine environment of China,environmental priority pollutants in seawater of China were recommended based on improved COMMPS and DYNAMEC methods of EU.Taking the chemicals in lists of priority control of China and pollutants concerned by international marine conservation organizations as candidate substances,the DYNAMEC and COMMPS methods were improved from the scoring of pollutants for human health effect.The screening method of marine environmental priority pollutants based on environmental exposure index,environmental effect index and priority index was established.A total of 68 environmental priority pollutants in seawater of China were recommended through the primary screening process of persistence-bioaccumulation-toxicity and the secondary screening process of priority ranking.These priority pollutants include 11 metals and metalloid compounds,11 polycyclic aromatic hydrocarbons,8 organic halides,24 pesticides and 14 other organic compounds,covering new pollutants such as bisphenol A,nonylphenol and organophosphorus esters.Our results are expected to provide important methodological support for the pollution issue identification,formulation and revision of marine environmental criteria and standards,risk assessment and pollution control of toxic and hazardous chemicals in different marine environments,,and to provide scientific references for marine ecological environment management.