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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, July 28 - Sunday, August 3, 2014

Ozone and particle pollution (PM2.5)

Mostly Good air quality this week.

Weather outlook

Ozone and PM2.5 air quality is in the Good range this Monday morning across Wisconsin. Upper level winds in the atmosphere will be from a northwesterly direction for most of the week. This will keep cooler temperatures over Wisconsin for the upcoming week. High temperatures will range from the low-to-mid 70s today and warm to the upper 70s by the weekend. Winds will become very light by Friday and Saturday, and there may be a chance for some Moderate air quality 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 [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 July 28 2014