Data 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
Air Quality Forecast
Today's High Tomorrow's High
Air Quality Index (AQI)
Good Good
Health Message: None
Air Quality Index (AQI)
Good Good
Health Message: None
AQI - Pollutant Details
Particles (PM2.5)
Particles (PM2.5)
Forecast Discussion: FORECAST SUMMARY: Friday, October 28th, 2016 through Monday, October 31st, 2016 PM-2.5: 24-hour Fine Particulate concentrations will remain mostly Good through Saturday; a mix of Good and Moderate readings are expected early in the new week. FORECAST DISCUSSION: Two weather systems will be moving through the state this weekend. The first brings precipitation late Friday/early Saturday, mostly to northern areas, and the second brings more widespread precipitation later Saturday into Sunday. Light southerly winds early Friday will allow some hourly fine particulate readings to get into the low Moderate range; however, levels should improve as winds pick up in speed from the south/southwest during the afternoon. This will result in Good daily averages of fine particulate. Southerly winds turn north/northeast Saturday as the system passes. Fine particulate Saturday is expected to be in the Good range. Winds early Sunday will be easterly as the next weather system tracks across the southern portion of the state. High pressure will slide in later Sunday drying conditions out. Surface winds weaken late Sunday into early Monday as high pressure positions itself over the state. Fine particulate Sunday will likely remain Good; however, on Monday levels will range between Good and low-Moderate. EXTENDED FORECAST: Extended forecast models show another system moving through the Lake Superior area Monday into Tuesday which could bring some precipitation for trick-or-treaters across northern portions of the state. Winds remain southerly Monday into Tuesday; therefore, fine particulate will likely remain in the upper Good to low Moderate range. Forecast updated by Stephanie Hengesbach: Friday, October 28th, 2016 Next forecast update: Monday, October 31st, 2016

Current Conditions
Air Quality Index (AQI)
observed at 11:00 EDT
Unhealthy for Sensitive Groups
Health Message: People with heart or lung disease, older adults, and children should reduce 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 7 Good
Particles (PM10) 40 Good
Particles (PM2.5) 123 Unhealthy for Sensitive Groups

Past Air Quality Maps and Data
Yesterday's Maps and Data
Air Quality Maps Archives (by region)

E-Mail Notification