根据美国环境保护局(EPA)的数据,约有2000个饮用水系统的PFAS浓度超过了新设定的最大污染物限值(MCL)。此外,PFAS还可以通过食物链的方式影响人群,尤其是鱼类和禽类等食物中可能积累有害的PFAS,从而对消费者的健康造成威胁。 在儿童和其他弱势群体中,PFAS的健康风险尤为突出。儿童由于体重较轻、代谢速度较快,饮食中...
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 ...
美国环境保护局(EPA)第五项《无管制污染物监测规则》(UCMR 5)要求在2023年至2025年期间对29个PFAS进行监测,目标是对服务于3300多人的所有公共供水系统和服务于3300人以下的800个具有代表性的小型公共供水系统进行采样(9)。然而,UCMR 5抽样不包括90%以上的小型公共供水,这些供水服务于不到3300人(10)或家庭井用户...
April 2024 saw the final announcement from the EPA announcing the National Primary Drinking Water Regulation, stating the Maximum Contaminant Level (MCL) for six PFAS compounds in drinking water. Collaborating with industry experts, the SCIEX PFAS team are constantly challenging the status quo on the...
EPA has issued its draft rule setting drinking water limits for several PFAS compounds. Specifically. U.S. EPA’s draft rule proposes a four part per trillion (ppt) maximum contaminant level (MCL) for perfluorooctanoic acid (PFOA)… Continue reading Water CERCLA, GenX, maximum contaminant level...
EPA is weighing its rarely used emergency powers under the Safe Drinking Water Act (SDWA) to address perfluorinated compounds, a potential alternative authority the agency could use to quickly require cleanups of the chemicals at local hot spots given its reticence to craft national cleanup standards...
行动方案阐述了EPA正在采取的长期和短期行动,包括: 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。
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 ...
The Upshot Massachusetts is joining a small number of states that have established an MCL for PFAS. This puts Massachusetts ahead of US EPA’s regulatory process under the federal Safe Drinking Water Act. Only time will tell if Massachusetts has moved too quickly. [View source.]Send...
In addition, the act would direct the EPA to promulgate a rule adding PFOA and PFOS as hazardous air pollutants under the Clean Air Act. The bill would also set a five-year deadline for the EPA to determine whether other PFAS should be listed as hazardous air pollutants. ...