States With Most Toxic Air

"Despite two decades of cleaning up carcinogenic fumes from cars and factories, Californians are breathing some of the most toxic air in the nation, with residents of Los Angeles and Orange counties exposed to a cancer risk about twice the national average...New York tops the U.S. Environmental Protection Agency's list, followed closely by California, while rural residents of Wyoming, South Dakota and Montana have the least chance of contracting cancer from breathing the air."

"In the EPA assessment, only New Yorkers faced a bit more danger than Californians, with a risk of 68 cancers per million. Oregon ranked third, largely because of motor vehicle exhaust and smoke from forest fires and fireplaces. Washington, D.C., was fourth, with New Jersey fifth."

"Today's cars are already about 99% cleaner than cars of the 1970s...In California, industries are now minor sources of most carcinogens