"If birds hosting flu virus are exposed to the waterborne pollutant, they might develop drug-resistant strains, chemists worry."

"Dirty water from residential washing machines is a significant source of a toxin polluting Puget Sound, according to a study released Tuesday."

"With more and more toxic chemicals turning up in people's bodies and the environment, the Obama administration asked Congress Tuesday to draft a tougher law for how the government regulates tens of thousands of chemicals."

"The US Environmental Protection Agency is recommending that owners of older buildings – including schools – test brittle, aging masonry and window caulking for high levels of likely cancer-causing chemicals."

"New research raises questions about the safety of eating wild game, and triggers a renewed debate about banning lead ammunition."

"A federal judge on Monday dismissed most of a lawsuit filed against chemical giant DuPont Co. by Parkersburg (W.Va.) residents over the pollution of their city's water with the toxic chemical C8."

"A Madison County [Ill.] class-action lawsuit filed in 2004 over the use of the popular herbicide atrazine is gaining steam, and one lawyer says it could reshape farming practices nationwide."

"Two top U.S. natural gas producers called on the industry to release data about the chemicals they use in the fast-growing Marcellus shale development to counter fears it was polluting water supplies."

"The U.S. Environmental Protection Agency filed a complaint against VF Corp, owner of the North Face brand, on Tuesday, claiming that more than 70 styles of shoes advertised as bacteria-killing by the company had not been registered with the agency."