This cohort study investigates the associations between air and noise pollution exposure in pregnancy through age 12 years with the development of psychotic experiences, depression, and anxiety at 13 to 24 years of age.

Exposure to wildfire smoke increases the odds of being diagnosed with dementia even more than exposure to other forms of air pollution, according to a landmark study of more than 1.2 million Californians unveiled at the Alzheimer’s Association International Conference.