Worst air pollution Cheesman Park - Denver, today and tomorrow

Today (16 July): Air quality in Cheesman Park is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 12:00 PM (O3: 37.2/100).
Tomorrow (17 July 2026): Air quality in Cheesman Park is fair. All pollutants stay as today. Pollution peaks around 11:00 AM (O3: 39.1/100). Airmine updates local air quality forecasts four times daily.

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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team

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Denver's Cheesman Park air quality benefits from the elevated Capitol Hill position and the 80-acre park's substantial tree canopy providing natural filtration. Vehicle traffic on 8th Avenue and the surrounding residential character contribute modest local sources, while the Rocky Mountain westerly airflows generally provide clean background ventilation and Cheesman Park generally maintains among Denver's more moderately ventilated residential park environments throughout most of the year.

Today - 16 July | Pollution peaks at 12:00

AQI:

Fair

37.2/100

PM2.5 (fine particles):

Good

13.3/100

PM10 (coarse particles):

Good

10.2/100

NO2 (nitrogen dioxide):

Good

6.7/100

O3 (ozone):

Fair

37.2/100

SO2 (sulfur dioxide):

Good

1.0/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

4.1/100

PM1 (ultrafine particles):

Good

8.9/100

Levels show the poorest local air quality during the day

Tomorrow - 17 July | Pollution peaks at 11:00

AQI:

Fair

39.1/100

PM2.5 (fine particles):

Good

14.8/100

PM10 (coarse particles):

Good

9.1/100

NO2 (nitrogen dioxide):

Good

5.9/100

O3 (ozone):

Fair

39.1/100

SO2 (sulfur dioxide):

Good

0.9/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

3.8/100

PM1 (ultrafine particles):

Good

9.8/100

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Frequently Asked Questions

Is air quality bad in Cheesman Park right now?

On 16 July 2026, overall air quality in Cheesman Park is fair. AQI is the main air quality indicator at 37.2/100. Pollution peaks around 12:00 PM (O3: 37.2/100).

Will air quality be worse tomorrow in Cheesman Park?

On 17 July 2026, air quality conditions in Cheesman Park will be similar to today, with AQI forecast at fair at 39.1/100. Pollution peaks around 11:00 AM (O3: 39.1/100).

When is air pollution at its worst in Cheesman Park?

Air quality at Cheesman Park shifts across the year, as autumn is often the cleanest stretch, between wildfire season and the onset of winter inversions; by contrast, valley and basin locations can see pollution trapped under cold air for days during winter inversions. Higher-elevation, more exposed locations generally avoid the worst of the valley inversion episodes.

Are air quality levels in Cheesman Park 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.

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Data provided by Airmine — Last update: 16 July 2026 at 10:33 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.

For long term forecasts and maps, see the Airmine app