Air pollution tied to stroke, memory loss

Air pollution tied to stroke, memory loss
http://uk.reuters.com/article/2012/02/13/us-air-pollution-memory-loss-idUKTRE81C24N20120213

"A study published Monday in the Archives of Internal Medicine found a higher risk of stroke after "moderate" compared to "good" air quality days in Boston-area residents, especially when traffic-related pollution was high."