Per- and poly-fluoroalkyl substances (PFAS) are a large family of human-made chemicals that don’t occur in nature. They are known as ‘forever chemicals’ because they don’t break down in the environment.
They have non-stick or stain repellent properties so can be found in household items like food packaging, electronics, cosmetics and cookware.
But now researchers at the University of Stockholm have found them in rainwater in most locations on the planet – including Antarctica. There is no safe space to escape them.
Based on the latest US guidelines for PFOA in drinking water, rainwater everywhere would be judged unsafe to drink.
Ian Cousins – Lead author of the study