"Diesel engine fumes can cause lung cancer and belong in the same potentially deadly category as asbestos, arsenic and mustard gas, World Health Organisation (WHO) experts said on Tuesday."

"Federal health and environmental agencies are investigating whether Range Resources Inc.'s Yeager Marcellus Shale gas drilling site in Washington County caused toxic air and groundwater pollution that damaged the health of nearby residents."

"GARY — The secluded west side neighborhood once filled with chickens and horses has been replaced by giant yellow excavators and crews in hard hats. No remnants of the Hispanic enclave nicknamed Cowboy Town remain now as the cleanup of the toxic Ralston Street lagoon shifts into high gear after decades of delay."

"BROWNSVILLE, Tenn. -- On a Saturday morning 18 months ago, Husley Hunt looked up from his pond to witness a sight that was particularly troubling to someone who's health-conscious, grows organic vegetables and ardently hopes to live to be 100. Workers were cleaning up chemical pollution from his property."

"Federal officials believe they have identified a highly concentrated pocket of cancer-causing chromium underneath an abandoned factory in Garfield [NJ] that may be the root cause of the large-scale contamination potentially threatening the health of thousands of residents."

"Oil drilling has sparked a frenzied prosperity in Jeff Keller's formerly quiet corner of western North Dakota in recent years, bringing an infusion of jobs and reviving moribund local businesses. But Keller, a natural resource manager for the Army Corps of Engineers, has seen a more ominous effect of the boom, too: Oil companies are spilling and dumping drilling waste onto the region's land and into its waterways with increasing regularity."

"A senior Chinese official demanded on Tuesday that foreign embassies stop issuing air pollution readings, saying it was against the law and diplomatic conventions, in pointed criticism of a closely watched U.S. embassy index."

"In a St. Louis courtroom last month, attorneys geared up for a trial more than a year away that will center on whether 17 children allegedly poisoned by the lead smelter in Herculaneum can prove their ailments deserve compensation."

"About a mile south of Lucas Oil Stadium in Downtown Indianapolis, Tony Chao stood fishing one recent morning on the bank of the White River."

Two scientists say BP's aggressive efforts to subpoena e-mails related to their estimate of the oil flow rate during the 2010 Deepwater Horizon Gulf oil spill invade their privacy and threaten the integrity of the scientific deliberative process.