Worst air pollution Ferndale, today and tomorrow
Today (9 August): Air quality in Ferndale 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: 44.9/100).
Tomorrow (10 August 2026): Air quality in Ferndale is fair. PM1 decreases to medium; all other pollutants stay as today. Pollution peaks around 9:00 PM (NO2: 49.8/100). 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 Ferndale, cool, damp North Coast air is the main influence on air quality, and frequent marine influence keeps pollutant levels consistently low. These factors combine to give Ferndale a fairly typical seasonal air quality pattern for this part of the country. Checking current readings is still the best way to plan outdoor activity around Ferndale.
Today - 9 August | Pollution peaks at 21:00
AQI:
Medium
44.9/100
PM2.5 (fine particles):
Fair
27.7/100
PM10 (coarse particles):
Good
8.3/100
NO2 (nitrogen dioxide):
Medium
44.9/100
O3 (ozone):
Fair
34.2/100
SO2 (sulfur dioxide):
Good
6.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
6.7/100
PM1 (ultrafine particles):
Fair
32.7/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 21:00
AQI:
Medium
49.8/100
PM2.5 (fine particles):
Fair
36.3/100
PM10 (coarse particles):
Good
11.2/100
NO2 (nitrogen dioxide):
Medium
49.8/100
O3 (ozone):
Fair
35.6/100
SO2 (sulfur dioxide):
Good
5.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
8.0/100
PM1 (ultrafine particles):
Medium
40.6/100
Pollen forecast in Ferndale
View pollen forecastFrequently Asked Questions
Is air quality bad in Ferndale right now?
On 9 August 2026, overall air quality in Ferndale is fair. O3 is the main pollutant at 34.2/100. Pollution peaks around 9:00 PM (NO2: 44.9/100).
Will air quality be worse tomorrow in Ferndale?
On 10 August 2026, air quality conditions in Ferndale will be similar to today, with PM2.5 forecast at fair at 36.3/100. Pollution peaks around 9:00 PM (NO2: 49.8/100).
When is air pollution at its worst in Ferndale?
Seasonal changes shape air quality across Ferndale, as the cleanest air usually comes in winter, when storms periodically flush pollution out of the basin; by contrast, from August into October, wildfire smoke can add sharp particulate spikes on top of the usual summer ozone. Coastal breezes offer some relief compared to inland valley locations that see heavier smog buildup.
Are air quality levels in Ferndale 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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