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MiAir

A preview of the MiAir dashboard, showing Air Quality Index information for the state of Michigan

MiAir

MiAir is your comprehensive hub for up-to-date and historical air monitoring data across Michigan. Explore real-time pollutant monitoring data alongside the color-coded Air Quality Index (AQI) to stay informed about air quality conditions.

Air quality monitoring network

Michigan's air quality monitoring network helps make sure the air people breathe is healthy and that the state meets the National Ambient Air Quality Standards (NAAQS). The network includes more than 100 air monitors at over 40 locations across Michigan.

The monitors measure the amount of pollution in outdoor (ambient) air—the air people breathe where they live, work, and play.

A preview of the MiAir dashboard, showing Air Quality Index information for the state of Michigan

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Historical data available within MiAir

Explore historical pollutant data by monitoring station, including:

  • Ozone
  • Fine particulate matter (PM₂.₅)
  • Coarse particulate matter (PM₁₀)
  • Carbon monoxide (CO)
  • Nitrogen dioxide (NO₂)
  • Nitrogen oxide (NO)
  • Sulfur dioxide (SO₂)
  • Additional pollutants measured at selected monitoring stations

Historical data are available beginning February 2024 and can be viewed by day or date range and downloaded for further analysis.

  • A particulate matter monitoring station at Negaunee, Michigan

    Learn more about air monitoring

    Learn how Michigan monitors air quality and find monitoring data, reports, and information about air monitors, air sensors, and wildfire smoke.