Just like DDT, PCBs and asbestos, a group of substances obliquely known as PFAS are incredibly useful, potentially deadly and devilishly difficult to clean up.Since the 1950s, PFAS (per- and polyfluorinated substances) have been used in products ranging from pacemakers and fireproof foam to cosmetics and food containers.
[
add
]
[
|
|
...
]