Quirks & Quarks

July 24 - Best of Quirks: PFAS Science

We look at the potential health effects about this new class of 'forever chemicals,' how they spread around the world - even to remote parts of Northern Canada - and the regulations that scientists say need to change.

This special series looks at the emerging threat of a new class of 'forever chemicals'

The firefighting foam used by airports until 2019, and many likely still use, often contained a cocktail of PFAS chemicals. (AP Photo/News Tribune/Julie Smith)