Worst air pollution Fraser, today and tomorrow
Today (9 August): Air quality in Fraser is very poor. AQI and NO2 are very poor; PM2.5, O3, and SO2 are fair; PM1 is medium; PM10, CO, and HCHO are good. Pollution peaks around 9:00 PM (NO2: 87.7/100).
Tomorrow (10 August 2026): Air quality in Fraser is very poor. PM2.5 decreases to medium; all other pollutants stay as today. Pollution peaks around 10:00 PM (NO2: 81.4/100). Airmine updates local air quality forecasts four times daily.
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Air quality in Fraser is driven mostly by high mountain air — usually pristine, with occasional wildfire smoke in dry summers. Most days bring generally favorable conditions here, with occasional exceptions tied to shifting weather patterns. As with most US destinations, conditions here are best understood by season rather than by a single yearly average.
Today - 9 August | Pollution peaks at 21:00
AQI:
Very poor
87.7/100
PM2.5 (fine particles):
Fair
39.8/100
PM10 (coarse particles):
Good
15.1/100
NO2 (nitrogen dioxide):
Very poor
87.7/100
O3 (ozone):
Fair
32.4/100
SO2 (sulfur dioxide):
Fair
30.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.4/100
PM1 (ultrafine particles):
Medium
41.4/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 22:00
AQI:
Very poor
81.4/100
PM2.5 (fine particles):
Medium
42.4/100
PM10 (coarse particles):
Good
16.7/100
NO2 (nitrogen dioxide):
Very poor
81.4/100
O3 (ozone):
Fair
33.5/100
SO2 (sulfur dioxide):
Fair
24.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
4.6/100
PM1 (ultrafine particles):
Medium
43.3/100
Pollen forecast in Fraser
View pollen forecastFrequently Asked Questions
Is air quality bad in Fraser right now?
On 9 August 2026, overall air quality in Fraser is very poor. AQI is the main air quality indicator at 87.7/100. Pollution peaks around 9:00 PM (NO2: 87.7/100).
Will air quality be worse tomorrow in Fraser?
On 10 August 2026, air quality conditions in Fraser will be similar to today, with AQI forecast at very poor at 81.4/100. Pollution peaks around 10:00 PM (NO2: 81.4/100).
When is air pollution at its worst in Fraser?
Fraser follows a fairly predictable seasonal air quality pattern. In short, the shoulder seasons of spring and fall typically offer the most stable, cleanest conditions, whereas valley and basin locations can see pollution trapped under cold air for days during winter inversions. Valley and basin locations are especially prone to these winter inversion episodes compared to more exposed, higher terrain.
Are air quality levels in Fraser 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: 10 August 2026 at 02:34 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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