"The first comprehensive study of rivers and streams in California has found that sport fish in the Sacramento-San Joaquin Delta watershed have higher concentrations of mercury and PCBs than anywhere else in the state."

"A year after chemical weed-killers contaminated compost in Vermont, the composting industry is calling for tighter federal regulations on persistent herbicides."

"Giving expression to a law unanimously passed by Congress in 2010, the U.S. Environmental Protection Agency [Wednesday] proposed two rules to help protect Americans from exposure to the harmful chemical formaldehyde emitted from wood products. These rules ensure that composite wood products, whether produced in the United States or imported, meet the formaldehyde emission standards established by that law."

"Fears of terrorism have made it harder than ever for citizens to find out what dangerous chemicals lurk in their backyards, The Associated Press has found. Secrecy and shoddy record-keeping have kept the public and emergency workers in the dark about stockpiles of explosive material."

"As it inches closer to emergence from bankruptcy, Eastman Kodak is still wrestling with the financial repercussions of past environmental problems."

"Federal judges [Tuesday] rejected challenges from both industry and environmental groups to U.S. EPA's air standards for lead smelters."

"A freight train smacked into a truck carrying garbage and careened off the tracks in Rosedale Tuesday afternoon, triggering an explosion felt throughout the region and sending up a plume of black smoke visible for miles."

"Exposure to pesticides and other chemicals is linked to an increased risk of developing Parkinson's disease, according to a fresh look at some past research."

"Bisphenol A is used to line drinks cans and in tests affected the way genes work in the brains of laboratory rats."