'Forever chemicals' in US tap water could increase cancer risk by 33%

Americans exposed to 'forever chemicals' in tap water have up to a 33 percent higher risk of developing , a new study warns.

 

In the most comprehensive study of its kind, researchers from the Keck School of Medicine of the University of Southern California looked at the link between polyfluoroalkyl substances (PFAS) - found in about 45 percent of drinking water supplies across the US - and the incidence of digestive, endocrine, respiratory, and mouth and throat cancers.

 

Past research has linked the chemicals, which to a range of health problems, including kidney, breast and testicular cancers.