These chemicals are now found on almost every part of the planet, including in the bodies of a large percentage of the American public. An environmental health scientist explains the risks.

Scientists found PFAS hot spots in Miami’s Biscayne Bay where the chemicals are entering coastal waters and reaching the ocean. Water samples point to some specific sources.

Scientists discovered PFAS hot spots in the bay and found PFAS in water along the Atlantic coast. In a new study, they traced the chemicals’ origins to help stop the harm.

The drinking water systems serving over 70 million people may not meet newly proposed water quality standards. It could cost hundreds of billions of dollars to fix that.

The Biden administration is finalizing the first federal limits on two compounds, PFOA and PFOS, in drinking water. These so-called ‘forever chemicals’ have been linked to numerous health effects.

The federal government has new advisories on PFAS, which can put human health at risk in a list of ways, but so far only states are regulating the chemicals.

PFAS chemicals are toxic, widespread and persistent in the environment, and the federal government has been slow to regulate them. A scientist explains why evaluating them one by one isn't working.