Data and Forecasts courtesy of:

AQI: Good (0 - 50) AQI: Good (0 - 50)
Air quality is considered satisfactory, and air pollution poses little or no risk.
AQI: Moderate (51 - 100) AQI: Moderate (51 - 100)
Air quality is acceptable; however, for some pollutants there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.
AQI: Unhealthy for Sensitive Groups (101 - 150) AQI: Unhealthy for Sensitive Groups (101 - 150)
Although general public is not likely to be affected at this AQI range, people with lung disease, older adults and children are at a greater risk from exposure to ozone, whereas persons with heart and lung disease, older adults and children are at greater risk from the presence of particles in the air.
AQI: Unhealthy (151 - 200) AQI: Unhealthy (151 - 200)
Everyone may begin to experience health effects members of sensitive groups may experience more serious health effects.
 AQI:Very Unhealthy (201 - 300) AQI: Very Unhealthy (201 - 300)
Health alert: everyone may experience more serious health effects.
AQI: Hazardous(301 - 500) AQI: Hazardous (301 - 500)
Health warnings of emergency conditions. The entire population is more likely to be affected.
Action DayAction Day
Local Air Quality Resources
Action Day Programs | Forecast | Real-time Air Quality Data | Today's AQI
State Air Quality Resources
Air Monitoring via MIair – AQI, Pollutant Maps & Data
Air Quality Division - Michigan DEQ
American Lung Association (ALA) of Michigan
Department Environmental Quality (DEQ)
Department of Environmental Quality (DEQ) Environmental Emergency Contacts
Local Clean Air Coalitions: Clean Air Coalition of Southeast Michigan
Local Clean Air Coalitions: West Michigan Clean Air Coalition
Midwest Haze Camera
Data and Forecasts courtesy of:
Current Conditions
Air Quality Index (AQI)
observed at 5:00 EDT
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
Note: Values above 500 are considered Beyond the AQI. Follow recommendations for the Hazardous category. Additional information on reducing exposure to extremely high levels of particle pollution is available here.
AQI - Pollutant Details
Ozone 40 Good
Particles (PM10) 42 Good
Particles (PM2.5) 81 Moderate
Air Quality Forecast
Today Tomorrow
Air Quality Index (AQI)
Moderate Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.
Data Not Available
AQI - Pollutant Details
Particles (PM2.5)
Data Not Available
Forecast Discussion: FORECAST SUMMARY: Saturday, June 16th, 2018 through Monday, June 18th, 2018 ...AIR QUALITY ACTION DAY ADVISORY FOR SUNDAY JUNE 17TH... THE ACTION DAY ADVISORY IS IN EFFECT FOR THE FOLLOWING MICHIGAN COUNTIES: IN WEST MICHIGAN: ALLEGAN... BERRIEN... CASS... KALAMAZOO... KENT... MASON... MUSKEGON... OCEANA... OTTAWA... ST. JOSEPH... AND VAN BUREN COUNTIES IN SOUTHEAST MICHIGAN... LENAWEE... MACOMB... MONROE... OAKLAND... ST. CLAIR... WASHTENAW... AND WAYNE COUNTIES Ozone: 8-hour Ozone concentrations will be mostly Moderate with USG possible both Saturday and Sunday; levels will be Good to Moderate Monday. PM-2.5: 24-hour Fine Particulate concentrations will range from Good to middle Moderate. FORECAST DISCUSSION: Heat and humidity is still forecast to build into the state Saturday and Sunday. Storms Saturday over Lake Michigan and the western portion of the state will dissipate as a warm front tracks north of Lake Superior and upper level ridging builds in. Southwest winds will usher in warm temperatures and dew points which will make conditions feel very summer-like. This set-up will also be conducive for increased ozone. Clouds and precipitation in west Michigan early Saturday may keep ozone in the Moderate range; however, once the clouds dissipate ozone will quickly increase so the threat for USG does still exist. We have a Clean Air Action Day in place Saturday to cover this threat. Sunday, chances for storm development are less than the past couple of days. Plenty of sunshine is expected and southwest winds combined with increased temperatures at the surface and upper levels, will create an environment favorable for increased ozone. We are continuing the Clean Air Action Day for Sunday in west Michigan and will also include the Kalamazoo area. We are also adding southeast Michigan to the Clean Action Day since increased ozone will be possible in that part of the state also. The way is looks now, ozone levels should improve Monday as a cold front sinks into the state bringing with it clouds and precipitation. If the front slows down, the southern portion of the state may have one more day of heat/humidity and higher ozone levels. For now, a Moderate ozone forecast is in place. Since increased ozone Monday would be isolated, we don’t foresee the need at this time to continue the Action Day into Monday. Fine particulate will continue a slow increase with levels ranging from upper Good to middle Moderate through Monday. EXTENDED FORECAST: The cold front will be south of the state Tuesday and pollution levels by then should be back into the Good range. Forecast updated by Stephanie Hengesbach: Saturday, June 16th, 2018 Next forecast update: Monday, June 18th, 2018
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