LearningRx reviews study on dementia and air pollution
One-fifth of dementia cases may be caused by air pollution
Research published in the journal Translational Psychiatry indicates that exposure to high levels of tiny air pollution particles that are up to 2.5 micrometers in diameter increase an older woman’s risk of dementia by over 90 percent.
http://www.medicalnewstoday.com/articles/315605.php