Bugs could help detect ‘forever chemical’ contamination

Researchers have discovered that neurons in a locust’s brain can distinguish among multiple PFAS compounds, including PFOS, one of the world’s most common “forever chemicals,” at environmentally relevant concentrations.

PFAS, or per- and polyfluoroalkyl substances, are used in products ranging from nonstick cookware and waterproof fabrics to firefighting foams. Because they...