(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)须监测相关PFAS,并用3...
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 ...