Risk of death from Alzheimer’s disease 35% higher with higher levels of PM2.5

Particulate matter (PM2.5) pollution is linked to a significantly increased risk of hospitalisation and death from Alzheimer’s disease, according to a new study by Duke University.

The researchers analysed North Carolina mortality and hospital admissions data for associations with levels of PM2.5. They identified 87 North Carolina postcodes where PM2.5 was above World Health Organisation (WHO) levels. Having adjusted for factors such as race, sex, income, education and health care access, the researchers found that the risk of death from Alzheimer’s disease was 35% higher in populations living in areas with higher levels of PM2.5.

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