Ann Arbor
 
Data and Forecasts courtesy of:
 

AQI Forecast - https://files.airnowtech.org/airnow/today/forecast_aqi_20170720_mi_in_oh.jpg Map Map Map Map Map Map Map Map Map Map Map Map Map
 
Legend: National Parks/Monuments National Parks/Monuments     Legend: Tribal Boundaries Tribal Boundaries
The tribal boundaries shown here are provided by the Bureau of Indian Affairs and are intended to be used as a general spatial reference only. They are not a formal determination of tribal boundaries by the EPA.
 - https://files.airnowtech.org/airnow/today/cur_aqi_mi_in_oh.jpg Map Map Map Map Map Map Map Map Map Map Map Map Map
 
Legend: National Parks/Monuments National Parks/Monuments     Legend: Tribal Boundaries Tribal Boundaries
The tribal boundaries shown here are provided by the Bureau of Indian Affairs and are intended to be used as a general spatial reference only. They are not a formal determination of tribal boundaries by the EPA.
AQI Animation - https://files.airnowtech.org/airnow/today/anim_aqi_mi_in_oh.gif Map Map Map Map Map Map Map Map Map Map Map Map Map
 
Legend: National Parks/Monuments National Parks/Monuments     Legend: Tribal Boundaries Tribal Boundaries
The tribal boundaries shown here are provided by the Bureau of Indian Affairs and are intended to be used as a general spatial reference only. They are not a formal determination of tribal boundaries by the EPA.
 
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 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
Ozone
Moderate
Moderate
Particles (PM2.5)
Moderate
Moderate
Data Not Available
Forecast Discussion: FORECAST SUMMARY: Monday, July 17th, 2017 through Thursday, July 20th, 2017 Ozone: Ozone concentrations are expected to be Moderate through most of the state with USG likely along the Southwest Lake Michigan counties and Southeast Michigan on Tuesday. Then Good to Moderate for the remaining forecast period. PM-2.5: 24-hour Fine Particulate concentrations are also expected to be Moderate throughout the forecast period. FORECAST DISCUSSION: We are seeing an identical setup to what we saw during the first week in July when one monitor in southwest Michigan exceeded the USG threshold and five monitors exceeded the threshold in southeast Michigan. Essentially, weather conditions will be very calm, sunny, and humid with increasing temperatures on Tuesday. The calm winds will cause local stagnation as mobile and industrial fumes have nowhere to go. Under an intense July sun and humid conditions, elevated afternoon ozone concentrations are likely to occur, especially in the Detroit area. Similar conditions can occur in southwest Michigan with chemical plumes from northwest Indiana and the Chicago area. All ozone models are confining USG conditions to the three most southwest counties and I think that is a reasonable prediction. One model has fog lingering over Lake Michigan for most of the day, which could hamper ozone development, but I am not convinced of its accuracy. As such, I am issuing advisories for the 7-county southeast Michigan area and the 3-county southwest Michigan area. The rest of the work week is less of a threat with active weather moving into the state late Tuesday. The very eastern part of the state will be the last to see the benefits from this active weather so I will keep an eye on Wednesday and will update this forecast, if necessary. EXTENDED FORECAST: Air Quality is expected to be mostly Good to Moderate for the remainder of the work week. Forecast updated by Jim Haywood: Monday, July 17th, 2017 Next forecast update: Thursday, July 20th, 2017

Current Conditions
Air Quality Index (AQI)
observed at 7:00 EDT
55
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
Ozone 17 Good
Particles (PM2.5) 55 Moderate

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