Detroit
 
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:
Air Quality Forecast
Today's High Tomorrow's High
Air Quality Index (AQI)
Moderate Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
Air Quality Index (AQI)
Moderate Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
AQI - Pollutant Details
Particles (PM2.5)
Moderate
Moderate
Particles (PM2.5)
Moderate
Moderate
Forecast Discussion: FORECAST SUMMARY: Friday, February 17th, 2017 through Tuesday, February 21st, 2017 PM-2.5: 24-hour Fine Particulate concentrations will be mostly Moderate through the forecast period. FORECAST DISCUSSION: This forecast period will be dry and unseasonably warm for mid-February standards. A warm front will move north through the state Friday bringing in southwesterly winds. Then, a weak cold front passes through early Saturday. Moisture is lacking with these boundaries; therefore, conditions will remain dry. Winds will switch to the northwest for a short period of time Saturday, but then winds weaken early Sunday as high pressure settles overhead. Winds will pick up in speed from the southeast/south Monday as the next weather system approaches from the west. This system could bring precipitation into the forecast late Monday. As for air quality, hourly concentrations Friday were increasing into the Moderate range at some southern monitors. With a southerly wind flow in place, a few locations may average Moderate for the day, but most areas will be upper Good. Warmer air will be in place Saturday even with the winds switching to the northwest for a period of time. This wind flow should slow increases in fine particulate and readings ranging from upper Good to low Moderate are expected. With high pressure settled overhead Sunday, conditions will be calm under morning low level inversions. Warm conditions and weaker winds will cause generally Moderate fine particulate across central and southern locations. Also, the warmer air moving over the current snow pack in northern portions of the state could cause Moderate fine particulate. Winds do pick up in speed Monday which will help slow increases in fine particulate; however, with warmer air remaining in place I feel most areas will remain Moderate for fine particulate. EXTENDED FORECAST: Extended forecast models show a cold front passing the state early Tuesday. Winds look to switch to the west after this boundary passes; however, there will not be a big clean out of air. Therefore, mostly Moderate fine particulate is expected to continue… Forecast updated by Stephanie Hengesbach: Friday, February 17th, 2017 Next forecast update: Tuesday, February 21st, 2017

Current Conditions
Air Quality Index (AQI)
observed at 10:00 EST
67
Moderate
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
Particles (PM10) 37 Good
Particles (PM2.5) 67 Moderate

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