Worst air pollution Huron River Corridor - Ann Arbor, today and tomorrow

Today (9 August): Air quality in Huron River Corridor is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 8:00 AM (O3: 34.0/100).
Tomorrow (10 August 2026): Air quality in Huron River Corridor is fair. All pollutants stay as today. Pollution peaks around 1:00 PM (O3: 33.4/100). Airmine updates local air quality forecasts four times daily.

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Ann Arbor's Huron River Corridor records good air quality along the river valley greenway threading through the city, with the riparian vegetation and low surrounding traffic on the river trail network keeping readings below the city average. The river valley channels clean southwesterly airflows through Ann Arbor on most days.

Today - 9 August | Pollution peaks at 08:00

AQI:

Fair

34.0/100

PM2.5 (fine particles):

Good

5.9/100

PM10 (coarse particles):

Good

4.1/100

NO2 (nitrogen dioxide):

Good

2.3/100

O3 (ozone):

Fair

34.0/100

SO2 (sulfur dioxide):

Good

0.3/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

4.1/100

PM1 (ultrafine particles):

Good

4.5/100

Levels show the poorest local air quality during the day

Tomorrow - 10 August | Pollution peaks at 13:00

AQI:

Fair

33.4/100

PM2.5 (fine particles):

Good

7.3/100

PM10 (coarse particles):

Good

4.2/100

NO2 (nitrogen dioxide):

Good

4.0/100

O3 (ozone):

Fair

33.4/100

SO2 (sulfur dioxide):

Good

0.4/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

6.5/100

PM1 (ultrafine particles):

Good

4.7/100

Other Landmarks in Ann Arbor

Frequently Asked Questions

Is air quality bad in Huron River Corridor right now?

On 9 August 2026, overall air quality in Huron River Corridor is fair. AQI is the main air quality indicator at 34.0/100. Pollution peaks around 8:00 AM (O3: 34.0/100).

Will air quality be worse tomorrow in Huron River Corridor?

On 10 August 2026, air quality conditions in Huron River Corridor will be similar to today, with AQI forecast at fair at 33.4/100. Pollution peaks around 1:00 PM (O3: 33.4/100).

When is air pollution at its worst in Huron River Corridor?

Air quality around Huron River Corridor changes with the seasons: the cleanest stretches usually come in spring and fall, between the summer ozone season and the calmer winter pollution episodes, but hot, humid summer conditions drive ozone formation, especially during heat waves. Lake-effect winds can help clear the air on many days near the Great Lakes shoreline.

Are air quality levels in Huron River Corridor based on measurements or forecasts?

It is forecasts derived by downscaling forecasts provided by EU’s Copernicus Atmosphere Monitoring Service (CAMS) by taking into account local conditions such as traffic patterns. CAMS bases its forecast on satellite measurements of particles and chemical compounds in the atmosphere. Airmine’s services were developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team.

Why doesn’t the forecast always reflect wildfire impacts?

Airmine’s forecast uses CAMS (Copernicus Atmosphere Monitoring Service) as its background atmospheric model. While CAMS includes wildfire emissions, these are derived from satellite observations and are not available in real time. During rapidly evolving wildfire events, there may therefore be a delay before increased emissions are incorporated into the model. As a result, the forecast may temporarily underestimate PM₂.₅ and other pollutants associated with wildfire smoke.

During rapidly evolving wildfire events, CAMS may lag by approximately 1–2 days before increased wildfire emissions are fully represented, which can lead to temporary underestimation of PM₂.₅ concentrations in Airmine’s forecast.

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Data provided by Airmine — Last update: 9 August 2026 at 20:27 CEST (Data is updated four times daily.)

This forecast is produced independently using Airmine's own atmospheric data and models.

Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.

Disclaimer: Forecasts are provided for informational purposes only and should not be relied upon as medical advice. Actual pollen and air quality conditions may vary from the forecast. If you have allergies, asthma, or another medical condition, consult a healthcare professional. Please see our Terms of Service for important information about limitations of liability.

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