Download PDFStory at-a-glanceLong-term PM2.5 exposure was associated with an 8% higher dementia risk for every 5 micrograms per cubic meter increase, pooled across 21 observational studies. Animal research suggests fine particles may reach the brain through nasal pathwaysIn a single-center retrospective study of 70 patients, elevated fine particulate exposure 90 to 180 days earlier was associated with roughly twice the brain aneurysm rupture ris…
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