Air pollution linked to cognitive impairment in older women

So maybe you don’t care much about air pollution’s effects on wildlife and such. But would you be more interested if you knew it might be tied to humans’ cognitive decline? afternoon in the Archives of Internal Medicine suggests that chronic exposure to airborne particulate matter — small solid particles suspended in air — is associated with increased risk of cognitive impairment. The greater the exposure (in this study, over a four-year period), the study finds, the faster the cognitive decline.