Water Safety


Risk Communication Models for PFAS

Risk communication is a critical step in addressing contaminants of emerging concern, especially for high-profile compounds like per- and polyfluoroalkyl substances (PFAS). There are differences in the messaging and methods by which environmental agencies and health departments share information with various audiences. Given the breadth of regulatory efforts, sampling strategies, and general involvement with PFAS, it is important to communicate best practices to help states effectively and efficiently address contamination.

ASTHO and the Environmental Council of the States (ECOS) have collaborated to develop this hub of PFAS risk communication resources. We hope the materials on this site will help state environmental and health managers more easily collaborate and disseminate audience-appropriate information on chemicals of emerging concern.

PFAS Case Studies

In 2018, ASTHO and ECOS interviewed 6 states regarding their risk communication strategies and lessons learned for PFAS and compiled the following case studies:



In 2019 ASTHO and the Environmental Council of States (ECOS) hosted a webinar to showcase state case studies on risk communication for Per- and Polyfluoroalkyl Substances (PFAS).

ASTHO Resources


Briefs and Reports

Relevant Resources

State PFAS pages