May 24, 2024 · In 2019, Seattle air quality averaged an annual PM2.5 concentration of 7.5 μg/m3, meeting both the Environmental Protection Agency (EPA) and ...
People also ask
What is the air quality in Seattle today?
What if air quality is over 500?
How long does particulate matter stay in the air?
What is the air quality in NYC now?
Get air quality data where you live. ; Air Quality Index Scale ; 0 - 50. Good ; 51 - 100. Moderate ; 101 - 150. Unhealthy for Sensitive Groups (USG) ; 151 - 200.