"More than 60 years after scientists assembled the nuclear bombs dropped on Hiroshima and Nagasaki, lethal waste is seeping from mountain burial sites and moving toward aquifers, springs and streams that provide water to 250,000 residents of northern New Mexico."

"The Interior Department will leave in place George W. Bush-era changes to a rule designed to protect streams from mountaintop-removal coal mining until 2011, according to court documents filed by the Obama administration Friday."

"Congress authorized buying out the residents of the contaminated community of Treece [Kansas] on Thursday, and the Environmental Protection Agency signaled it's ready to move forward with emptying the town of people."

"Congressional negotiators reached a deal Tuesday that would effectively exempt 13 ships that haul iron ore, coal and other freight on the Great Lakes from a proposed federal rule meant to reduce air pollution."

"A new EPA report says that the potentially toxic pollutants in coal ash – from mercury to arsenic - are of particular concern because they can concentrate in large amounts that are discharged to waterways or seep into groundwater."

"Idling school buses spew tons of exhaust into the air, putting children at risk when they leave school at the end of each day. In New York City alone, idling vehicles emit as much pollution as nine million diesel trucks driving from the Bronx to Staten Island. But the city's laws requiring them to shut down their engines in school zones are poorly enforced."

"More than 100 properties near the Doe Run Co.'s smelter have been recontaminated with dangerous levels of lead, a finding that comes less than a decade after regulators ordered the company to remove and replace polluted soil on the properties, the U.S. EPA said Monday."

"Nearly identical bills to prevent cruise ships from discharging raw, untreated sewage in U.S. coastal waters were introduced Wednesday in both Houses of Congress."

"Decades of industrial pollution in the Portland Harbor Superfund site have left high levels of contaminants in river sediment, an exhaustive survey concludes, posing risks to wildlife, fish and humans who eat fish from the nine-mile stretch of the Willamette River."

"A federal jury on Monday found Exxon Mobil liable for contaminating groundwater in New York City and awarded the city $104.7 million in compensatory damages."

"Thousands of people in the heart of Frisco [Texas] are exposed to toxic lead pollution from a battery recycling plant that wants to expand production." City officials are opposing the expansion.

Allegheny Energy's Hatfield's Ferry coal-burning electric power plant finally reduced its air pollution by installing scrubbers. But the scrubbers dump many tons of wastewater and pollutants into the Monongahela River, which provides drinking water for 350,000 people.

"As U.S. Air Force officials marked the 50th anniversary of the deployment of nuclear missiles to sites in the rural United States this past week, residents in some of these communities are still grappling with another legacy — groundwater pollution from chemicals used to clean and maintain the weapons."

New York "is asking local government agencies to regulate key aspects of the natural gas industry, raising yet more questions about who will pay for manpower to oversee multinational energy companies setting up shop in Southern Tier's backyards."

"Federal officials this week offered the first national blueprint on how to clean up methamphetamine labs — prompting state health experts to consider changes to their policies."