Science Inventory

Per- and polyfluroalkyl substances (PFAS) are a large group of chemicals of concern based on their potential persistence, bioaccumulation, and toxicity. A tiered approach to screening and testing using new approach methodologies has been proposed as one of the few tractable appro...

Per- and polyfluoroalkyl substances (PFAS) are of concern due to their persistence in the environment and potential health effects to both human and wildlife. However, for many PFAS there is very limited or no toxicity information related to the modes of action in aquatic species...

Per- and polyfluoroalkyl substances (PFAS) are a large class of fluorinated organic chemicals of concern due to their broad occurrence and persistence in humans and the environment and potential health effects. In response to these concerns, over 140 PFAS were screened for 81 dif...

Determination of the concentrations at which per- and polyfluoroalkyl substances (PFAS) are toxic or safe for exposed organisms is an urgent need among EPA program offices and other state, tribal, and community stakeholders. Growing evidence suggests identification of concentrati...

Per- and poly-fluoroalkyl substances (PFAS) have achieved substantial prominence in terms of public visibility and regulatory concern. Research and regulatory activities associated with PFAS in many parts of the world have emphasized possible human health effects, but there is in...