Worst air pollution Moncton, today and tomorrow
Today (16 July): Air quality in Moncton is fair. O3 is fair; AQI and NO2 are medium; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 2:00 AM (NO2: 40.3/100).
Tomorrow (17 July 2026): Air quality in Moncton is fair. AQI worsens to fair; NO2 increases to fair; all other pollutants stay as today. Pollution peaks around 11:00 AM (O3: 32.3/100). 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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Moncton's air quality reflects its rail and highway transportation-hub position, with Trans-Canada Highway traffic the primary local source amid generally favourable river-valley ventilation.
Today - 16 July | Pollution peaks at 02:00
AQI:
Medium
40.3/100
PM2.5 (fine particles):
Good
8.4/100
PM10 (coarse particles):
Good
3.2/100
NO2 (nitrogen dioxide):
Medium
40.3/100
O3 (ozone):
Fair
38.9/100
SO2 (sulfur dioxide):
Good
2.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
7.2/100
PM1 (ultrafine particles):
Good
8.9/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 11:00
AQI:
Fair
32.3/100
PM2.5 (fine particles):
Good
8.2/100
PM10 (coarse particles):
Good
3.3/100
NO2 (nitrogen dioxide):
Fair
20.9/100
O3 (ozone):
Fair
32.3/100
SO2 (sulfur dioxide):
Good
1.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.1/100
PM1 (ultrafine particles):
Good
6.6/100
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Frequently Asked Questions
Is air quality bad in Moncton right now?
On 16 July 2026, overall air quality in Moncton is fair. O3 is the main pollutant at 38.9/100. Pollution peaks around 2:00 AM (NO2: 40.3/100).
Will air quality be worse tomorrow in Moncton?
On 17 July 2026, air quality conditions in Moncton will be similar to today, with AQI forecast at fair at 32.3/100. Pollution peaks around 11:00 AM (O3: 32.3/100).
When is air pollution at its worst in Moncton?
Moncton sees clear seasonal swings in air quality, driven in part by its inland crossroads position on the Petitcodiac River. Coastal fog and summer humidity are the main features, occasionally trapping local emissions on calm, muggy days, while winter storms off the Atlantic usually keep the air scoured clean. The Atlantic's near-constant weather systems rarely let pollution build up for long.
Are air quality levels in Moncton 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.
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Data provided by Airmine — Last update: 16 July 2026 at 10:33 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.
For long term forecasts and maps, see the Airmine app