PEER alleges state-supervised cleanup of Santa Susana was "superficial."

One major gap in the proposed HHS policy is that it does not apply to grantees, and much of the scientific work done in the U.S. takes place under grants.

Activated carbon is a charcoal-like substance that PFAS stick to quite well and can be used to remove PFAS from water. Ion exchange systems are typically even better, writes Joe Charbonnet.

In a new report, EPA Inspector General says the agency lacks policies to protect scientific integrity from political interference.