PFCs, the toxic chemicals used in the manufacture of non-stick cookware, have been found to be widely present in water and fish in Washington.
A study by the Department of Ecology found that low levels of PFCs were prevalent in both lakes and rivers, while higher concentrations were even present in osprey eggs, illustrating how the chemicals build up in the food chain.
The findings have alarmed environment experts, who point out that there are no manufacturers of PFCs in Washington. They are now trying to find the source of the chemicals, and developing a plan to reduce their presence and the risk to local people.
PFCs persist in the environment, and although their effect on humans is still unclear one type of PFC, called PFOA, has been proved to harm animals.