- Contact information
- For information on air quality and forecasts, contact:
- Mike Majewski
Current air quality outlook
Department meteorologists use monitoring data along with weather predictions to determine when and where an air quality notice is needed. The meteorologists submit daily air quality forecasts for eight Wisconsin cities to EPA's AirNow website. Below is the current air quality forecast, which will be updated as needed.
Monday, July 21 - Sunday, July 27, 2014
Particle pollution (PM2.5)
Moderate air quality early this week, then becoming Good.
Unhealthy for Senstive Groups (USG) and Moderate air quality early this week, then becoming Good.
Ozone air quality is in the Good range and PM2.5 is a mix of Good and Moderate this Monday morning across Wisconsin. Sunny skies, very warm temperatures and southerly winds are expected today and Tuesday across Wisconsin; these conditions are favorable for ozone formation. USG levels of ozone are likely today in counties along the Lake Michigan shoreline. Stronger southwest winds on Tuesday may help keep levels in the Moderate range. A cold front will pass through Wisconsin Tuesday night. Cooler and drier weather will settle across the Great Lakes region from Wednesday into Friday along with Good air quality. Warmer and more humid air will head back towards Wisconsin next weekend, which may lead to clouds and showers. Moderate air quality is possible for next weekend.
Air Quality Index (AQI) ranges
For more information, see the U.S. EPA's Air Quality Index - A Guide to Air Quality and Your Health.
of Health Concern
|Numerical Value||8-hr Ozone (ppb)||24-hr PM2.5 (ug/m3)|
|Good||0-50||0-59||0.0 to 12.0|
|Moderate||51-100||60-75||12.1 to 35.4|
|Unhealthy for Sensitive Groups||101-150||76-95||35.5 to 55.4|
|Unhealthy||151-200||96-115||55.5 to 140.4|
|Very Unhealthy||201-300||116-374||140.5 to 210.4|
|Hazardous||> 300||> 374||> 210.4|