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current air quality in Wisconsin.
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Contact information
For information on air quality and forecasts, contact:
Mike Majewski
Meteorologist
608-267-0577

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 [exit DNR]. Below is the current air quality forecast, which will be updated as needed.

Monday, April 20 - Sunday, April 26, 2015

Particle pollution (PM2.5)

Good air quality this week.

Ozone

Good air quality this week.

Weather outlook

Air quality is in the Good range this Monday morning across Wisconsin. A low pressure system moving northward through Michigan has brought rain to the region overnight into the morning hours. Gusty winds will develop today bringing colder temperatures to the region.

Temperatures will be cooler this week with highs in the upper 40s to low 50s. Winds will generally be from a northerly direction.

Air quality should be in the Good range for both PM2.5 and ozone this week.

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 [exit DNR].

Color coded chart showing ozone and fine particle concentration ranges for each AQI level
AQI Levels
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
Last revised: Monday April 20 2015