Worst air pollution Edmundston, today and tomorrow
Today (9 August): Air quality in Edmundston is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 9:00 AM (O3: 38.0/100).
Tomorrow (10 August 2026): Air quality in Edmundston is fair. All pollutants stay as today. Pollution peaks around 11:00 AM (O3: 27.3/100). Airmine updates local air quality forecasts four times daily.
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Edmundston's air quality has historically been shaped by the local pulp-and-paper mill, with the river-valley confluence position sometimes trapping emissions during winter inversions.
Today - 9 August | Pollution peaks at 09:00
AQI:
Fair
38.0/100
PM2.5 (fine particles):
Good
13.2/100
PM10 (coarse particles):
Good
10.2/100
NO2 (nitrogen dioxide):
Good
18.3/100
O3 (ozone):
Fair
38.0/100
SO2 (sulfur dioxide):
Good
2.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
9.2/100
PM1 (ultrafine particles):
Good
7.5/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 11:00
AQI:
Fair
27.3/100
PM2.5 (fine particles):
Good
9.1/100
PM10 (coarse particles):
Good
6.5/100
NO2 (nitrogen dioxide):
Good
12.7/100
O3 (ozone):
Fair
27.3/100
SO2 (sulfur dioxide):
Good
2.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
4.9/100
PM1 (ultrafine particles):
Good
5.4/100
Pollen forecast in Edmundston
View pollen forecastFrequently Asked Questions
Is air quality bad in Edmundston right now?
On 9 August 2026, overall air quality in Edmundston is fair. AQI is the main air quality indicator at 38.0/100. Pollution peaks around 9:00 AM (O3: 38.0/100).
Will air quality be worse tomorrow in Edmundston?
On 10 August 2026, air quality conditions in Edmundston will be similar to today, with AQI forecast at fair at 27.3/100. Pollution peaks around 11:00 AM (O3: 27.3/100).
When is air pollution at its worst in Edmundston?
Seasonal air quality in Edmundston is closely linked to its pulp mill along the Saint John River in northwestern New Brunswick. Air quality is generally very good outside of wildfire season, though hot, dry summers can bring smoky, hazy stretches when fires burn across the wider region. Wind direction across the river determines how much of the industrial output drifts into town on any given day.
Are air quality levels in Edmundston 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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