"The Environmental Protection Agency plans to conduct a new study about the potential health risks of atrazine, a widely used weedkiller that recent research suggests may be more dangerous to humans than previously thought."

"A new study adds to the growing concern that prenatal exposure to the chemical bisphenol A could harm children's development. In the study of 249 pregnant women, the first to examine the effects of BPA on children's behavior, researchers found that girls whose mothers had the highest levels of BPA during pregnancy were more aggressive and hyperactive at age 2 than other girls."

"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."