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See
today's forecasts on AIRNow [exit DNR].
View
current air quality in Wisconsin.
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and subscribe to air quality notices.
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 27 - Sunday, August 2, 2015

Particle pollution (PM2.5)

Mostly Good air quality this week.

Ozone

Mostly Good air quality this week.

Weather outlook

Air quality is in the Good range Monday morning across Wisconsin. Monday and Tuesday will generally be warm and humid with Moderate air quality. A cold front will pass through the state late Tuesday night and early Wednesday morning. This will cause a wind shift to a westerly direction and bring cleaner air into the region. Good air quality should remain over the state through Friday. More favorable conditions for Moderate air quality may develop by Sunday.

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 27 2015