New research explains why a cancer-causing form of chromium has been turning up in ground and surface waters far from industrial sources.
Chrome plating and dye manufacturing are among the industries that generate chromium (VI), a form that the element assumes in certain compounds. But recently, researchers have discovered the toxic agent in regions—including California and parts of Mexico and Italy—beyond the reach of industrial contamination.
Log in
Subscribers, enter your e-mail address for full access to the Science News archives and digital editions.