"Some residents blame a nearby toxic waste dump for health problems. U.S. says the study shows the Obama administration's commitment to environmental justice."

"Just as millions head to tanning beds to prepare for spring break, the Food and Drug Administration will be debating how to toughen warnings that those sunlamps pose a cancer risk. Yes, sunburns are particularly dangerous."

"Citing the decline in frogs and rise of "frankenfish," a Bay Area environmental group filed a legal petition Monday for tighter federal standards on pollutants that disrupt the hormones of humans and wildlife."

"The plan for broad use of X-ray body scanners to detect bombs or weapons under airline passengers' clothes has rekindled a debate about the safety of delivering small doses of radiation to millions of people -- a process some experts say is certain to result in a few additional cancer deaths."

"California scientists have identified clusters of autism, largely in the Los Angeles and San Francisco areas, where children are twice as likely to have autism as children in surrounding areas. The 10 clusters were found mostly among children with highly educated parents, leading researchers to report that they probably can be explained by better access to medical experts who diagnose the disorder."

"Virginia banned smoking in most restaurants a month ago -- and not all of them mind. North Carolina follows suit."

"Sen. Max Baucus, one of Montana's two senators and a chief figure in the federal government's attempt to pass health care reform, added a provision to the U.S. Senate version of the bill that would expand Medicare coverage to 'individuals exposed to environmental health hazards.'"

The first case of Marburg virus, a deadly relative of Ebola, has been reported in North America. A Colorado traveler brought it home after contact with bats in a cave in Uganda.