"A very large, 30-year study of just about everyone in Scandinavia shows no link between cellphone use and brain tumors, researchers reported on Thursday."

"A study released Wednesday which found that nine of 10 babies tested were born with bisphenol A in their systems has renewed calls for the chemical to be banned."

"New horizons in biomonitoring are identifying environmental exposures that may play a role in health problems, including cancer, neurological disorders and diabetes. At their fingertips, researchers already have precise measurements of nearly 150 chemicals in several thousand American adults and children."

Health problems, some fatal, linger for workers at the Bannister Federal Complex in south Kansas City. It is being closed by Honeywell, the latest in a series of contractors who have operated it for the Energy Department's nuclear weapons program. No nuclear weapons were made there -- only non-nuclear components. But some 785 toxic substances were used there. Despite a $65-million cleanup, workers feel abandoned.

A federal agency that is supposed to protect communities from toxic threats is being accused of using bad science to falsely reassure communities, after it reversed its findings in two recent incidents.

"Exposure to both tobacco smoke before birth and lead during childhood increases a child's risk of developing attention deficit hyperactivity disorder (ADHD) more than eight-fold, according to new research from Cincinnati Children's Hospital Medical Center."

"Coal pollutants affect all major body organ systems and contribute to four of the five leading causes of mortality in the United States: heart disease, cancer, stroke, and chronic lower respiratory diseases, concludes a scathing report issued today by Physicians for Social Responsibility."

"A spate of recent deaths of New York police and fire officers who took part in the emergency operation at Ground Zero after the 9/11 attacks has heightened fears that it could be the start of a delayed epidemic of cancer-related illness."

"When you get right down to it, dust is pretty complicated. It also may be affecting your health."

"An aggressive cancer linked to asbestos is killing more Canadians than ever before, even decades after the end of a boom that saw buildings stuffed with the toxic substance."