PFAS — officially called per- and polyfluoroalkyl substances — are synthetic chemicals that have been used in products from cookware to plastic packaging for decades. You may know them as "forever ...

A new paper in Environmental Toxicology and Chemistry, published by Oxford University Press, finds high qualities of toxic “forever” chemicals in sea otters recovered off the Pacific Ocean. Per- and ...

Lead and arsenic concentrations in sediments and waters along Lake Coeur d’Alene have changed very little in the past 25 ...

For nearly 40 years, a controversial California law has required companies to place warning labels on their products alerting consumers to the potential health threats posed by chemicals, or else face ...

The bioconcentration factor shows the concentration of chemical substances in fish as compared to the surrounding water. It ...

Toxic pesticides dumped off Southern California’s coast decades ago are staying put — deep in adjacent ocean sediments and in the fish that reside in these ...

There are signs in Michigan’s Clark’s Marsh that caution hunters and anglers against eating the game or fish they harvest there. Similar warnings are posted in Oregon’s Columbia Slough, which advise ...