Worst air pollution Broomfield, today and tomorrow
Today (16 July): Air quality in Broomfield is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 6:00 AM (O3: 34.1/100).
Tomorrow (17 July 2026): Air quality in Broomfield is fair. All pollutants stay as today. Pollution peaks around 6:00 AM (O3: 38.0/100). Airmine updates local air quality forecasts four times daily.
For long term forecasts and maps, see the Airmine app
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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Broomfield's air quality reflects the Denver-Boulder metropolitan Front Range corridor at 1,664 metres, with vehicle emissions from US-36 and the surrounding technology campus operations — including Oracle and Vail Resorts corporate campuses — contributing local sources. The Rocky Mountains provide clean westerly airflows on most days, while the Denver basin's temperature inversion problem periodically affects the northern Front Range corridor and summer wildfire smoke is an increasingly frequent seasonal concern.
Today - 16 July | Pollution peaks at 06:00
AQI:
Fair
34.1/100
PM2.5 (fine particles):
Good
9.7/100
PM10 (coarse particles):
Good
8.9/100
NO2 (nitrogen dioxide):
Good
0/100
O3 (ozone):
Fair
34.1/100
SO2 (sulfur dioxide):
Good
0/100
CO (carbon monoxide):
Good
0/100
HCHO (formaldehyde):
Good
4.9/100
PM1 (ultrafine particles):
Good
6.3/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 06:00
AQI:
Fair
38.0/100
PM2.5 (fine particles):
Good
10.6/100
PM10 (coarse particles):
Good
6.1/100
NO2 (nitrogen dioxide):
Good
0/100
O3 (ozone):
Fair
38.0/100
SO2 (sulfur dioxide):
Good
0/100
CO (carbon monoxide):
Good
0/100
HCHO (formaldehyde):
Good
5.6/100
PM1 (ultrafine particles):
Good
6.8/100
Pollen forecast in Broomfield
View pollen forecastFrequently Asked Questions
Is air quality bad in Broomfield right now?
On 16 July 2026, overall air quality in Broomfield is fair. AQI is the main air quality indicator at 34.1/100. Pollution peaks around 6:00 AM (O3: 34.1/100).
Will air quality be worse tomorrow in Broomfield?
On 17 July 2026, air quality conditions in Broomfield will be similar to today, with AQI forecast at fair at 38.0/100. Pollution peaks around 6:00 AM (O3: 38.0/100).
When is air pollution at its worst in Broomfield?
Broomfield experiences a distinct seasonal swing in air quality. Typically, the shoulder seasons of spring and fall typically offer the most stable, cleanest conditions, while winter temperature inversions can trap cold air and pollution in valleys and basins for days at a time. Valley and basin locations are especially prone to these winter inversion episodes compared to more exposed, higher terrain.
Are air quality levels in Broomfield 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