Then there are the autism rates. Researchers found that children born to mothers living within 1,000 feet of a major roadway in Los Angeles, Sacramento or San Francisco were twice as likely to be born with autism regardless of factors like race, gender or family education level. In Mexico, the studies found that exposure to exhaust can cause a type of brain swelling similar to what Alzheimer's patients endure.
It doesn't get much better for those of us who are occasionally trapped in traffic jams. The studies found that breathing in high-traffic areas for just 30 minutes can cause increased brain activity in the areas responsible for personality and decision making. Head over to The Wall Street Journal for a look at the full report.