Worst air pollution Welland Canal - Welland, today and tomorrow
Today (16 July): Air quality in Welland Canal is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 12:00 PM (O3: 35.4/100).
Tomorrow (17 July 2026): Air quality in Welland Canal is fair. All pollutants stay as today. Pollution peaks around 10:00 AM (O3: 33.6/100). 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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Welland Canal's air quality benefits from its linear waterway position connecting Lake Erie and Lake Ontario, with shipping traffic and nearby vehicle traffic on Highway 406 contributing modest local sources.
Today - 16 July | Pollution peaks at 12:00
AQI:
Fair
35.4/100
PM2.5 (fine particles):
Good
10.2/100
PM10 (coarse particles):
Good
8.8/100
NO2 (nitrogen dioxide):
Good
11.2/100
O3 (ozone):
Fair
35.4/100
SO2 (sulfur dioxide):
Good
1.0/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.6/100
PM1 (ultrafine particles):
Good
4.6/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 10:00
AQI:
Fair
33.6/100
PM2.5 (fine particles):
Good
9.2/100
PM10 (coarse particles):
Good
7.2/100
NO2 (nitrogen dioxide):
Good
8.1/100
O3 (ozone):
Fair
33.6/100
SO2 (sulfur dioxide):
Good
1.5/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.3/100
PM1 (ultrafine particles):
Good
5.2/100
Other Landmarks in Welland
Frequently Asked Questions
Is air quality bad in Welland Canal right now?
On 16 July 2026, overall air quality in Welland Canal is fair. AQI is the main air quality indicator at 35.4/100. Pollution peaks around 12:00 PM (O3: 35.4/100).
Will air quality be worse tomorrow in Welland Canal?
On 17 July 2026, air quality conditions in Welland Canal will be similar to today, with AQI forecast at fair at 33.6/100. Pollution peaks around 10:00 AM (O3: 33.6/100).
When is air pollution at its worst in Welland Canal?
Welland Canal's air quality follows a seasonal rhythm tied to the ship traffic passing through its locks between Lake Erie and Lake Ontario. Lake breezes off Lake Erie and Lake Ontario generally keep the air clean, though summer heat and cross-border traffic can bring brief periods of smog, and spring brings orchard and field activity. The escarpment and lake together create a moderating effect that keeps extremes fairly rare.
Are air quality levels in Welland Canal 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