Current Air Quality & Forecasts
The Air Quality Division provides forecasts for 3 metropolitan areas and also real-time hourly data for several monitored air pollutants.
Air Quality Index (AQI) Forecasts – What’s the AQI?
USG = Unhealthy For Sensitive Groups
Real Time (Hourly) Data By Pollutant
Ozone, Particulate Matter (PM10, PM2.5), Carbon Monoxide, Nitrogen Dioxide, Sulfur Dioxide, Hydrogen Sulfide
Regional and National Data: EPA’s Airnow Actual AQI values and archived monitoring data: Past Air Data
Monitoring Sites Map