Worst air pollution Susanville, today and tomorrow

Today (9 August): Air quality in Susanville is fair. PM2.5, O3, and PM1 are fair; AQI and NO2 are medium; PM10, SO2, CO, and HCHO are good. Pollution peaks around 9:00 PM (NO2: 47.8/100).
Tomorrow (10 August 2026): Air quality in Susanville is fair. PM1 decreases to medium; all other pollutants stay as today. Pollution peaks around 9:00 PM (NO2: 53.4/100). 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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Air quality in Susanville is driven mostly by regional wildfire smoke — summer wildfire smoke is the leading regional concern. Overall, Susanville sees air quality that tracks fairly closely with typical conditions for its wider region. Visitors and residents alike tend to notice the clearest air outside the warmest summer weeks.

Today - 9 August | Pollution peaks at 21:00

AQI:

Medium

47.8/100

PM2.5 (fine particles):

Fair

29.8/100

PM10 (coarse particles):

Good

9.0/100

NO2 (nitrogen dioxide):

Medium

47.8/100

O3 (ozone):

Fair

34.2/100

SO2 (sulfur dioxide):

Good

7.2/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

6.7/100

PM1 (ultrafine particles):

Fair

34.9/100

Levels show the poorest local air quality during the day

Tomorrow - 10 August | Pollution peaks at 21:00

AQI:

Medium

53.4/100

PM2.5 (fine particles):

Fair

39.1/100

PM10 (coarse particles):

Good

12.2/100

NO2 (nitrogen dioxide):

Medium

53.4/100

O3 (ozone):

Fair

35.6/100

SO2 (sulfur dioxide):

Good

6.7/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

8.0/100

PM1 (ultrafine particles):

Medium

41.5/100

Pollen forecast in Susanville

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Frequently Asked Questions

Is air quality bad in Susanville right now?

On 9 August 2026, overall air quality in Susanville is fair. PM1 is the main pollutant at 34.9/100. Pollution peaks around 9:00 PM (NO2: 47.8/100).

Will air quality be worse tomorrow in Susanville?

On 10 August 2026, air quality conditions in Susanville will be similar to today, with PM2.5 forecast at fair at 39.1/100. Pollution peaks around 9:00 PM (NO2: 53.4/100).

When is air pollution at its worst in Susanville?

Seasonal changes shape air quality across Susanville — winter typically brings the cleanest stretch, once occasional rain clears the basin, whereas from August into October, wildfire smoke can add sharp particulate spikes on top of the usual summer ozone. The mountains ringing the basin can trap pollution close to the ground for days when winds are calm.

Are air quality levels in Susanville 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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