Researchers at the Primate Research Center in Davis examined three-year-old rhesus monkeys that had been exposed as newborns to high levels of air pollution caused by wildfires burning around Northern California in 2008. The study shows that the monkeys, who were living outdoors at the time of the fires, were less able to fight off infectious diseases than animals born after the fires.
Lung development in rhesus monkeys and humans is very similar. The study is the first to show that particulate matter has a direct impact on primate immune system function.
The research suggests that exposure to particulates early in life could result in decreased lung capacity and lowered immunity persisting into adulthood.
A yellow-legged frog that was once the most abundant amphibian in the Sierra Nevada is now the most rare. But a new study finds the frog population in Yosemite National Park shows signs of slow recovery after decades of severe decline.
About 2,000 people are expected to help remove trash along Sacramento's American River Parkway this Saturday. The Great American River Cleanup is part of Coastal Cleanup Day, the state's largest annual volunteer event held in mid-September.
The U.S. Environmental Protection Agency today added an historic Amador County gold mine to the list of the nation's worst toxic sites. Argonaut Mine is located west of downtown Jackson. It operated from the 1850s to the early 1940s.
A new study shows fire-fighting foam containing highly fluorinated chemicals is contaminating drinking water supplies around many of the nation's military bases, airports and industrial sites.
Update 8:00 p.m. Sunday: Crews are making "good progress" on the Cold Fire in Yolo County, now at 60% containment. In Monterey County, the Soberanes Fire remains at 45% containment with wind creating an additional challenge for firefighters.