主要内容包括: (1)为饮用水中的6种PFAS物质建立了最大污染物水平(MCL),并确定了其基于健康的、暂不强制执行的最大污染物水平目标(MCLG),详见下表,包括PFOA、PFOS、PFHxS、PFNA和HFPO-DA作为单个污染物的MCL,以及含有至少两种或两种以上混合物使用危险指数MCL来说明饮用水中这些PFAS的组合和共存水平。 (2)须监测...
Drinking Water Levels- The EPA has begun the process of developing a Maximum Contaminant Level (MCL) for perfluorooctanoic acid (PFOA) and perfluorooctane sulfonate (PFOS), two of the most prevalent PFAS compounds, with the goal of establishing these levels by the end of 2019. The public will ...
执法:EPA将使用现有的执法工具来解决环境中的PFAS暴露问题,并协助各州开展执法活动。 监测:EPA将提议将PFAS纳入下一个不受管制的污染物监测项目(Unregulated Contaminant Monitoring Rule (UCMR) Program)中,进行全国范围的饮用水监测。另外还将考虑将PFAS化学品列入有毒物质排放清单(Toxics Release Inventory),以对这些...
MCL. This determination, however, is only the first step in the regulatory process. If EPA makes a decision to regulate PFOA and PFOS, the agency would still need to propose and promulgate a final rule that public water systems will have to meet, a process that ...
In an interim response to a petition from environmentalists seeking SDWA standards for several per- and polyfluoroalkyl substances (PFAS), EPA water chief David Ross told the Ohio Environmental Council last month that while the agency is considering whether two widespread PFAS meet statutory ...