Worst air pollution Holbrook, today and tomorrow

Today (9 August): Air quality in Holbrook is fair. PM1 is fair; AQI, PM2.5, PM10, NO2, O3, and SO2 are medium; CO and HCHO are good. Pollution peaks around 4:00 PM (NO2: 49.7/100).
Tomorrow (10 August 2026): Air quality in Holbrook is poor. AQI worsens to poor; NO2 increases to poor; O3 increases to fair; all other pollutants stay as today. Pollution peaks around 5:00 PM (NO2: 67.5/100). 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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In Holbrook, dry northeastern Arizona high-desert air is the main influence on air quality, and windy spring days can raise dust across the open desert. None of this is unusual for a place with Holbrook's particular geography and climate. Longer-term residents of Holbrook tend to plan outdoor activity around these predictable shifts.

Today - 9 August | Pollution peaks at 16:00

AQI:

Medium

49.7/100

PM2.5 (fine particles):

Medium

43.0/100

PM10 (coarse particles):

Medium

40.7/100

NO2 (nitrogen dioxide):

Medium

49.7/100

O3 (ozone):

Medium

42.2/100

SO2 (sulfur dioxide):

Medium

45.8/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

3.6/100

PM1 (ultrafine particles):

Fair

30.2/100

Levels show the poorest local air quality during the day

Tomorrow - 10 August | Pollution peaks at 17:00

AQI:

Poor

67.5/100

PM2.5 (fine particles):

Medium

43.5/100

PM10 (coarse particles):

Medium

42.0/100

NO2 (nitrogen dioxide):

Poor

67.5/100

O3 (ozone):

Fair

31.6/100

SO2 (sulfur dioxide):

Medium

41.0/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

3.1/100

PM1 (ultrafine particles):

Fair

32.4/100

Pollen forecast in Holbrook

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Air quality forecasts for neighbourhoods and landmarks in Holbrook

Frequently Asked Questions

Is air quality bad in Holbrook right now?

On 9 August 2026, overall air quality in Holbrook is fair. PM1 is the main pollutant at 30.2/100. Pollution peaks around 4:00 PM (NO2: 49.7/100).

Will air quality be worse tomorrow in Holbrook?

On 10 August 2026, air quality conditions in Holbrook will be worse than today, with AQI forecast at poor at 67.5/100. Pollution peaks around 5:00 PM (NO2: 67.5/100).

When is air pollution at its worst in Holbrook?

Conditions in Holbrook vary noticeably across the seasons. In short, the calmest, cleanest stretch usually falls between late autumn and early spring, whereas intense summer heat combines with occasional dust events to create the year's worst episodes. Sudden haboob-style dust storms can appear with little warning during the spring wind season.

Are air quality levels in Holbrook 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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