“Forever chemicals” have commonly been used in outdoor and activewear to provide better water resistance and durability. But now some states and consumers are demanding changes.
These containers – also referred to as high-density polyethylene (“HDPE”) containers – have been identified by EPA as a source of PFAS contamination of certain pesticides, and are reportedly used during food product manufacturing. Outside of the agency context, the bi-partisan Keep Food ...
PFHpA was detected in the Truckee River at concentrations ranging from less than the limit of quantitation (LOQ) to 26.3 ng L−1. The relationships among PFAS compounds were investigated by principal component analysis (PCA) using Varimax rotation with Kaiser normalization. For the Boise River,...
States (11). Additionally, precise locations and well depths of UCMR 5 samples are not disclosed to protect drinking water security. These data limitations may hinder effective water management decisions. To address such gaps, recent studies have developed state-wide models to predict PFAS concentrat...
(GenX Chemicals) have a limit of 10 ppt. The EPA also set enforceable water concentration limits using a Hazard Index formula for mixtures of four PFAS; PFNA, PFHxS, PFBS and HFPO-DA (GenX Chemicals). EPA has given states 5 years to test their public drinking water systems and implement...
Current and upcoming trends in PFAS measurement, and the state of official PFAS methods A laboratory perspective on the recent Maximum Contaminant Limit (MCL) proposal for 6 specific PFAS from the EPADr Bharat Chandramouli, Senior Scientist, SGS5.00pm Q&AInnovative Remediation Solutions...
While federal PFAS limits will ultimately replace those enacted at the state-level, Laeser says it’s important to understand that the standards released by the EPA today are not final. And while the EPA hopes to wrap up this process quickly, he says the risk of delays cau...
the Maryland Department of the Environment sampled more than 450 of the state’s community water systems for PFAS. Those systems serve nearly 90% of Maryland’s population. They found that 16% of the systems have higher levels of PFAS than the EPA’s proposed limit of 4 ppt. The agency ...
The lab utilizes isotope dilution for measurement and quantification of 55 PFAS validated to the requirements of EPA methods 533, 537 and 1633. The limit of quantification (LOQ) is 1.0 ng L−1 for all PFAS except GenX which is 2.0 ng L−1. Sensor production Acrylodan labeled hLFABP (...
To limit dangerous PFAS and PFOA exposure through contamination and overall use, the EPA has taken the following steps: Spot potential problems PFAS can cause throughout its long life cycle. Lower PFAS exposure and risk in the first place. ...