"University researchers said on Thursday they recently found alarming levels of cancer-causing toxins in an area of the Gulf of Mexico affected by BP's oil spill, raising the specter of long-lasting health concerns."

"Mid-Ohio Valley teenagers who were exposed to DuPont Co.'s C8 pollution experienced a four- to six-month delay in puberty, according to a new study that adds to the growing concerns about potential health effects of chemicals that have been widely used in nonstick and stain-resistant products."

EPA last month denied a petition from a coalition of environmental groups to ban lead hunting ammunition, who claimed EPA could do it under the Toxic Substances Control Act. Now the environmentalists have filed a Freedom of Information Act request, seeking documents that could tell whether EPA bowed to pressure from the National Rifle Association in an effort to dispose of the issue before the November election.

"A long-delayed government epidemiological study of possible ties between diesel exhaust and lung cancer in miners may finally be published this fall -- but only after a mining industry group, represented by the Washington lobbying powerhouse Patton Boggs, finishes a pre-publication review of the study's drafts."

"The Obama administration is renewing the long-running effort to win U.S. ratification of two international treaties aimed at limiting the reach of the world's most toxic chemicals."

"For the roughly 130 power plants, refineries and other facilities embroiled in the air permitting dispute between U.S. EPA and the Texas Commission on Environmental Quality, a new program being finalized by EPA could allow them to get on with business as usual."

"The contamination of many First Nations by unregulated landfills and dumps is a dirty story that has yet to be fully told. Aside from the mess you can see – and smell – the risk of groundwater pollution is probably the most severe environmental impact from these waste sites. Add an improperly engineered garbage dump and the results are more than toxic."

"Children whose drinking water contains high concentrations of manganese appear to have lower IQ scores on average than children not exposed to the metallic element, researchers have found."

"Americans are likely to be exposed at higher levels than previously thought to bisphenol A, a compound that mimics hormones important to human development and is found in more than 90 percent of people in the United States, according to new research."