"Hydraulic fracturing, an increasingly common method of extracting natural gas that involves shooting a concoction of water, sand and chemicals deep underground, has sparked controversy around the country — not least because drillers mostly keep their chemical formulas secret. But Texas, the leading gas-producing state, could help change industry practices by requiring public disclosure of the chemicals used."

"With remnants of once-legal lead paint, leaded gasoline and other pollutants from the nation's industrial past tainting land in U.S. cities, soil researchers warn that the growing number of urban farmers and community gardeners need to test their dirt and take steps to make sure it's safe."

"A U.S. EPA report suggesting that Americans have significantly higher cancer risks because of toxic emissions from motor vehicles has reopened the debate over dangers posed by outdated diesel engines."

"Environmental regulators proposed rules on Wednesday that would force aging coal-fired power plants to choose between installing costly anti-pollution technology or shutting, which could ensure reliance nuclear power and natural gas."

"Maryland's health secretary said Friday that his department's laboratory has destroyed test results dating to the 1980s documenting lead poisoning of Maryland children - potentially thousands of records that plaintiffs' lawyers say are crucial to pursuing lawsuits seeking damages on behalf of poisoned children and their families."

"MIDDLETON, Mass. -- An explosion and four-alarm blaze at a local manufacturing plant last night rocked homes for miles around, sent four workers to the hospital, and left local environmental officials concerned about chemical contamination to the nearby Ipswich River."

"With the Obama administration required to put its plan for reducing toxic air pollution from coal-fired power plants on the table a week from today, the American Lung Association and other public health groups have started an early push to explain why U.S. EPA shouldn't flinch on the long-delayed rules."

"Lead poisoning linked with illegal gold mining has killed a further 400 children in northern Nigeria since November, the National Emergency Management Agency (NEMA) said on Monday."
 

"Wal-Mart is banning a controversial flame retardant found in hundreds of consumer goods, from couches to cameras to child car seats, telling its suppliers to come up with safer alternatives."

"Groups representing 40,000 researchers and clinicians are urging federal agencies responsible for the safety of chemicals to examine the subtle impact a chemical might have on the human body rather than simply ask whether it is toxic."