可执行的MCL PFOA 0 4.0ng/L PFOS 0 4.0ng/L PFHxS 10ng/L 10ng/L PFNA 10ng/L 10ng/L HFPO-DA 10ng/L 10ng/L 含有两种或两种以上的混合物 1危险指数 1危险指数 更多详情参见:https://www.epa.gov/newsreleases/biden-harris-administration-finalizes-first-ever-national-drinking-water-standard ;...
环保署致力于采用科学的方法，保护公众健康，使其免受全氟辛酸（PFOA）和全氟辛烷磺酸（PFOS）的影响，包括采用新的同业互查方法迅速更新饮用水健康咨询，并迅速制定针对这些污染物的国家初级饮用水法规。“根据我们新的PFAS战略路线图，EPA正在积极采取明确、有力和基于科学的行动，保护遭受PFOA和PFOS污染的社区。”EPA...
US EPA 方法 537.1 是一种固相萃取 (SPE) 液相色谱/串联质谱 (LC/MS/MS) 方法,用于分析饮用水中的 18 种选定 PFAS,包括 PFOS 和 PFOA。多反应监测 (MRM) 可用于提高选择性,定量依赖于内标校正。该方法使用 Agilent Bond Elut LMS SPE 柱提取饮用水样品中的 PFAS。
(PFOA).It will reduce PFAS exposure for approximately 100 million people and prevent"thousands of deaths"and reduce"tens of thousands"of serious illnesses,EPA said.It estimated that between about 6% and 10% of the 66,000 public drinking water systems subject to this rule may have to take ...
EPA 537.1要求使用苯乙烯-二乙烯基苯(SDVB)基质对饮用水样品进行固相萃取(SPE)。该方法不允许修改样品萃取步骤,因此,使用的SPE柱必须按照规定的方法提供合适的结果。该分析方法涵盖18种PFAS,其中包括传统的羧酸盐和磺酸盐(如PFOA和PFOS)以及加入的四种...
饮用水:EPA正在推进制定安全饮用水法案(Safe Drinking Water Act, SDWA)中PFOA和PFOS(两种最常见的PFAS化学品,全氟辛酸铵与全氟辛烷磺酸盐)的最大污染物水平(MCL)。到今年年底,EPA将在出台MCL之后提出监管决策。 清理:EPA已经启动了将PFOA和PFOS列为有害物质的监管流程,将为受PFOA和PFOS污染的场地发布临时地下水...
Designating PFOA and PFOS as a hazardous substance under the Comprehensive, Environmental Response, Compensation, and Liability Act (CERCLA); Prohibiting the use of certain PFAS chemicals and adding PFAS to the Toxic Release Inventory; Requiring nationwide drinking water monitorin...
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...
These conclusions may be optimistic given the ubiquity of PFOA and PFOS in the environment, CERCLA’s strict liability scheme, the recently finalized regulation under the Safe Drinking Water Act, and EPA’s recognition that its estimates were limited by the fact that “every site is unique and ...
Until now, the agency has come under fire from environmentalists for only setting a nonbinding health threshold of 70 parts per trillion for PFOA and PFOS indrinkingwater. Several states have responded by setting their own PFAS limits for drinking water that are far tougher than the federal gu...