Dolphins and whales in the Pacific Ocean have been contaminated by some of the highest levels of so called forever chemicals in the world.
First-time global mapping of per and poly-fluoroaklyl substances, or PFAS, in toothed marine mammals suggests infiltration levels have been rising over the past two decades.
Australian researchers behind the study say more intensive industrial activity and PFAS production in Asian countries could be behind the detected elevations in the Pacific.