Worst air pollution Westdale - Hamilton, today and tomorrow
Today (16 July): Air quality in Westdale is fair. AQI, NO2, and O3 are fair; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 11:00 AM (O3: 33.2/100).
Tomorrow (17 July 2026): Air quality in Westdale is fair. NO2 decreases to good; all other pollutants stay as today. Pollution peaks around 8:00 AM (O3: 27.6/100). 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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Westdale's air quality benefits from its position near McMaster University with substantial tree canopy, offering somewhat better conditions than Hamilton's industrial harbour-adjacent lower city.
Today - 16 July | Pollution peaks at 11:00
AQI:
Fair
33.2/100
PM2.5 (fine particles):
Good
8.9/100
PM10 (coarse particles):
Good
5.1/100
NO2 (nitrogen dioxide):
Fair
21.2/100
O3 (ozone):
Fair
33.2/100
SO2 (sulfur dioxide):
Good
1.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.8/100
PM1 (ultrafine particles):
Good
6.2/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 08:00
AQI:
Fair
27.6/100
PM2.5 (fine particles):
Good
5.7/100
PM10 (coarse particles):
Good
2.2/100
NO2 (nitrogen dioxide):
Good
15.4/100
O3 (ozone):
Fair
27.6/100
SO2 (sulfur dioxide):
Good
1.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.9/100
PM1 (ultrafine particles):
Good
4.1/100
Other Landmarks in Hamilton
Sports venues in Hamilton
Frequently Asked Questions
Is air quality bad in Westdale right now?
On 16 July 2026, overall air quality in Westdale is fair. AQI is the main air quality indicator at 33.2/100. Pollution peaks around 11:00 AM (O3: 33.2/100).
Will air quality be worse tomorrow in Westdale?
On 17 July 2026, air quality conditions in Westdale will be similar to today, with AQI forecast at fair at 27.6/100. Pollution peaks around 8:00 AM (O3: 27.6/100).
When is air pollution at its worst in Westdale?
In Westdale, air quality changes through the year largely because of its leafy, university-adjacent streets set apart from the industrial waterfront. Air quality here tends to dip in summer, when heat and industrial output combine, and again briefly in winter when cold, calm air traps emissions near ground level. Its elevated position above the valley floor often means slightly cleaner air than the industrial areas below.
Are air quality levels in Westdale 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