Worst air pollution Miramichi, today and tomorrow
Today (16 July): Air quality in Miramichi is poor. AQI and O3 are poor; PM1 is fair; NO2 is medium; PM2.5, PM10, SO2, CO, and HCHO are good. Pollution peaks around 8:00 AM (O3: 60.6/100).
Tomorrow (17 July 2026): Air quality in Miramichi is fair. AQI improves to fair; NO2 increases to fair; O3 decreases to fair; PM1 decreases to good; all other pollutants stay as today. Pollution peaks around 1:00 PM (O3: 38.5/100). Airmine updates local air quality forecasts four times daily.
For long term forecasts and maps, see the Airmine app
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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Miramichi's air quality is shaped by regional forestry-mill operations, with sawmill emissions and Highway 8 traffic the primary local sources.
Today - 16 July | Pollution peaks at 08:00
AQI:
Poor
60.6/100
PM2.5 (fine particles):
Good
19.5/100
PM10 (coarse particles):
Good
6.6/100
NO2 (nitrogen dioxide):
Medium
43.7/100
O3 (ozone):
Poor
60.6/100
SO2 (sulfur dioxide):
Good
3.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
11.9/100
PM1 (ultrafine particles):
Fair
23.1/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 13:00
AQI:
Fair
38.5/100
PM2.5 (fine particles):
Good
14.1/100
PM10 (coarse particles):
Good
4.1/100
NO2 (nitrogen dioxide):
Fair
34.6/100
O3 (ozone):
Fair
38.5/100
SO2 (sulfur dioxide):
Good
2.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.6/100
PM1 (ultrafine particles):
Good
18.3/100
Pollen forecast in Miramichi
View pollen forecastFrequently Asked Questions
Is air quality bad in Miramichi right now?
On 16 July 2026, overall air quality in Miramichi is poor. AQI is the main air quality indicator at 60.6/100. Pollution peaks around 8:00 AM (O3: 60.6/100).
Will air quality be worse tomorrow in Miramichi?
On 17 July 2026, air quality conditions in Miramichi will be better than today, with AQI forecast at fair at 38.5/100. Pollution peaks around 1:00 PM (O3: 38.5/100).
When is air pollution at its worst in Miramichi?
Miramichi's air quality shifts with the calendar, largely because of its pulp mill along the Miramichi River. Winters here typically bring the cleanest air of the year, but summer and early fall can bring sharp, sometimes prolonged drops in air quality when wildfire smoke drifts in from across the 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 Miramichi 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