A network of experts in reproductive and children’s environmental health

Per- and Polyfluoroalkyl Substances (PFAS)

Per- and polyfluoroalkyl substances, also known as “forever chemicals”, are a type of emerging contaminant that are gaining more attention around the United States. There is still a lot to learn about their health effects, but the PEHSUs are a leading source of information on this topic. Health professionals are encouraged to follow the guidance below to help navigate discussions with patients and families.

Find Your Local PEHSU

PEHSUs across the country are ready and able to assist health professionals and families with their PFAS questions and concerns.  Click here to find your local PEHSU expert.

Resources for Health Professionals



Stay tuned for updated resources for health professionals and the communities they serve based on the new National Academies of Sciences, Engineering, and Medicine (NASEM) report.


PEHSU Resources 

The Pediatric Environmental Health Specialty Units (PEHSUs) are supported by cooperative agreement FAIN: NU61TS000296 with the Centers for Disease Control and Prevention/Agency for Toxic Substances and Disease Registry (CDC/ATSDR). The U.S. Environmental Protection Agency (EPA) also provides support through Inter-Agency Agreement DW-75-95877701 with CDC/ATSDR. The American Academy of Pediatrics supports the PEHSUs as the National Program Office. The content on this website has not been formally disseminated by CDC/ATSDR or the EPA and should not be construed to represent any agency determination or policy. Use of trade names that may be mentioned is for identification only and does not imply endorsement by the CDC/ATSDR or EPA.

The information contained on this website should not be used as a substitute for the medical care and advice of your/your child’s primary care provider. There may be variations in treatment that your provider may recommend based on individual facts and circumstances.

Last updated: July 2022