Worst air pollution North Bay, today and tomorrow
Today (16 July): Air quality in North Bay is very poor. AQI and NO2 are very poor; PM2.5 and PM1 are fair; O3 is medium; PM10, SO2, CO, and HCHO are good. Pollution peaks around 1:00 AM (NO2: 86.2/100).
Tomorrow (17 July 2026): Air quality in North Bay is poor. AQI improves to poor; PM2.5 decreases to good; NO2 decreases to poor; O3 increases to fair; all other pollutants stay as today. Pollution peaks around 11:00 PM (NO2: 65.0/100). 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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North Bay's air quality benefits from its Lake Nipissing shoreline position at the edge of the Canadian Shield, with vehicle traffic on Highway 11 and 17 the primary local source.
Today - 16 July | Pollution peaks at 01:00
AQI:
Very poor
86.2/100
PM2.5 (fine particles):
Fair
28.9/100
PM10 (coarse particles):
Good
10.5/100
NO2 (nitrogen dioxide):
Very poor
86.2/100
O3 (ozone):
Medium
41.5/100
SO2 (sulfur dioxide):
Good
10.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
9.1/100
PM1 (ultrafine particles):
Fair
30.4/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 23:00
AQI:
Poor
65.0/100
PM2.5 (fine particles):
Good
18.0/100
PM10 (coarse particles):
Good
6.9/100
NO2 (nitrogen dioxide):
Poor
65.0/100
O3 (ozone):
Fair
33.1/100
SO2 (sulfur dioxide):
Good
8.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.0/100
PM1 (ultrafine particles):
Fair
20.3/100
Pollen forecast in North Bay
View pollen forecastFrequently Asked Questions
Is air quality bad in North Bay right now?
On 16 July 2026, overall air quality in North Bay is very poor. AQI is the main air quality indicator at 86.2/100. Pollution peaks around 1:00 AM (NO2: 86.2/100).
Will air quality be worse tomorrow in North Bay?
On 17 July 2026, air quality conditions in North Bay will be better than today, with AQI forecast at poor at 65.0/100. Pollution peaks around 11:00 PM (NO2: 65.0/100).
When is air pollution at its worst in North Bay?
Air quality in North Bay shifts noticeably across the seasons, shaped by its position on Lake Nipissing at the edge of the boreal forest. 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. Local monitoring stations often see their highest readings of the year during major regional fire events.
Are air quality levels in North Bay 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