Environmental Health

"The latest skirmish in the decades-long scientific battle over the health risks of the most toxic form of dioxin is heating up."

"It's shaping up to be an active season for West Nile virus in Santa Clara County. ... But plans for a Tuesday evening fogging have outraged many West San Jose residents, who fear the county's large-scale spraying does more harm than good."

"Detroit's  anti-lead program -- beset with alleged shakedowns and bogus treatments, missing files, incompetence and mismanagement -- was upended last year after such scorching claims were reported in state and federal investigations." But efforts to reform it have left many lead-poisoned kids untreated and permanently damaged.

Workers on the massive project to clean oil from Prince William sound after the Exxon Valdez spill two decades ago are struggling with severe health problems. CNN investigates whether Gulf oil spill cleanup workers face the same fate.

"Songbirds such as sparrows and thrushes carry various forms of bird flu and could potentially spread the viruses to pigs and poultry, U.S. researchers reported on Tuesday."

"Women who worked in the Grand Junction offices of the former Atomic Energy Commission have been diagnosed with diseases that would be compensable under the radiation exposure compensation law and related legislation, except for the fact they were employed by the federal government."

"The use of roxarsone and other arsenic-based additives in poultry and swine feed is at the center of a national controversy."

"An international group of researchers is renewing its call for a global ban on the mining and use of asbestos, a known cause of cancer they say is unsafe in any form."