UW News

Logan Dearborn


April 2, 2025

Children exposed to higher ozone levels early in life are more likely to develop asthma

A pair of hands opens a gray inhaler.

Children exposed to higher levels of ozone in their first two years of life were significantly more likely to be diagnosed with asthma or wheezing at ages 4-6 — but researchers didn’t observe the increased risk of asthma at ages 8-9.