饮用水:根据 EPA 方法 537.1,满足 PFAS 分析的法规要求 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...
US EPA changes PFAS rule after signingdoi:10.1021/cen-09831-polcon4Britt E. EricksonChemical & Engineering News
该文10月发表在 ACS ES and T Water. 该文研究了影响饮用水中全氟和多氟烷基物质(PFAS)浓度的因素,并评估了人类的暴露风险。 结果显示,八氟辛酸和八氟辛烷磺酸(PFOS)是最常见的PFAS。中国自来水中的PFAS浓度显著高于英国,超过了美国环境保护署(USEPA)在2024年设定的PFOS(全氟辛烷磺酸)的最大污染物水平(MCL)...
On January 17, 2025, the Biden U.S. Department of Agriculture (USDA) issued an interim final rule with a request for comment that establishes technical guidelines for quantifying, reporting, and verifying the greenhouse gas (GHG) emissions associated with agricultural...
Health & Toxicity PFAS US EPA Requires Toxics Release Inventory Reporting for Seven Additional PFAS by EditorFebruary 21, 2024Continue Reading Bags Plastic Bans US Waste & Waste Management Plastic Bag Ban Made Pollution Worse in California by EditorFebruary 19, 2024Continue Reading M&A, Corporate ...
Chemical Companies Petition EPA to Amend TSCA Section 8(a)(7) PFAS Reporting Rule National Law Review03:05 Governor Abbott Signs Landmark School Choice Bill Into Law The Dallas Express03:05 view more headlines 5 May 06:00 About our USA News Latest news on USA, providing comprehensive covera...
issue a Treatment Technique instead. EPA has promulgated standards for about 100 contaminants in drinking water (Table3) [4]. This is a small fraction of the approximately 700 identified disinfection by-products [5], 1200 chemicals reportedly used or produced by fracking [6], 14,700 PFAS [7...
Over the last year, the EPA says it reviewed extensive research and science on how PFAS affects public health, while engaging with the water sector and state regulators to ensure effective implementation. The agency also considered 120,000 comments on the proposed rule from a wide variety of ...
A summary of EPA’s Non-Targeted Analysis Collaborative Trial (ENTACT) is also given, which makes direct use of ORD resources to benefit the global NTA research community. Finally, a research framework is described that shows how NTA methods will bridge chemical prioritization efforts within ORD....
SEATTLE (Waste Advantage): Veolia has reached a new milestone in its treatment of per- and polyfluoroalkyl substances (PFAS) chemicals in America’s drinking water, with more than 30 sites now reporting no detectable levels of regulated PFAS chemicals. The advanc...