Background levels of PFAS may be higher than thought, analysis suggests

Findings from soil samples in New Hampshire ‘pretty disturbing’, expert says, and raise questions on food and water contamination

Background levels of toxic PFAS “forever chemicals” in the ground and air may be much higher than previously thought, federal testing of spatially random soil samples from across New Hampshire suggests.

The analysis found high levels of PFAS in all 100 shallow soil samples, which were taken from undisturbed land not close to known polluters. The chemicals are thought to largely have gotten there through the air, and the study, along with recent EU research, suggests similar levels of soil and air contamination throughout the world.