Worst air pollution FirstOntario Centre - Hamilton, today and tomorrow
Today (16 July): Air quality in FirstOntario Centre 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 FirstOntario Centre 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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FirstOntario Centre's air quality reflects downtown Hamilton's position near the industrial harbour, with event-day traffic adding to the city's already elevated steel-industry background emissions.
Today - 16 July | Pollution peaks at 11:00
AQI:
Fair
33.2/100
PM2.5 (fine particles):
Good
9.1/100
PM10 (coarse particles):
Good
5.2/100
NO2 (nitrogen dioxide):
Fair
22.5/100
O3 (ozone):
Fair
33.2/100
SO2 (sulfur dioxide):
Good
1.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.8/100
PM1 (ultrafine particles):
Good
6.3/100
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
5.8/100
PM10 (coarse particles):
Good
2.3/100
NO2 (nitrogen dioxide):
Good
16.6/100
O3 (ozone):
Fair
27.6/100
SO2 (sulfur dioxide):
Good
1.5/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.9/100
PM1 (ultrafine particles):
Good
4.2/100
Other Landmarks in Hamilton
Sports venues in Hamilton
Frequently Asked Questions
Is air quality bad in FirstOntario Centre right now?
On 16 July 2026, overall air quality in FirstOntario Centre 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 FirstOntario Centre?
On 17 July 2026, air quality conditions in FirstOntario Centre 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 FirstOntario Centre?
In FirstOntario Centre, air quality changes through the year largely because of its downtown Hamilton setting near the harbourfront steel mills. 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. Wind direction off the harbour plays a large role in how far pollutants travel into surrounding neighbourhoods.
Are air quality levels in FirstOntario Centre 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