Entire US food chain mercury-contaminated
A report by the National Wildlife Federation concludes that animals at all levels of the food chain, including species commonly eaten by humans, are contaminated with more mercury than previously thought.
Felice Stadler says that the report "underscored how pervasive mercury contamination has become. Nearly every aspect of our food web has been contaminated. It's difficult to find an ecosystem that's not contaminated, whether it's ocean or forest or coastal waters or wetlands."
In the United States alone, mercury pollution is about 100 tons per year. Primary sources of pollution include coal-burning power plants, waste water treatment plants, and waste incinerators.