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Air Quality Ontario

St. Catharines: station information

Tuesday, July 1, 2025, 11:00 pm

St. Catharines Air Monitoring Station

Photo: St. Catharines Ambient Air Monitoring Site

Map of Ontario with St. Catharines
Station data for St. Catharines
Station information
Station name: St. Catharines
Address: Argyle Cres., Pump Stn.
Latitude: 43.160056
Longitude: -79.23475
Station type: Urban
Height of air intake: 4 m
Elevation ASL: 105 m
Pollutants measured: O3, PM2.5, NO2
Measured pollutants at St. Catharines
Pollutant Measured 1-hour
concentration
O3 40 ppbOzone [O3]graph
PM2.5 6 µg/m3Fine Particulate Matter [PM2.5]graph
NO2 2.3 ppbNitrogen Dioxide [NO2]graph
Ontario 1-hour AAQC for the measured pollutants
Pollutant Ontario
1-hour AAQC
O380 ppb
NO2200 ppb

Note: N/A (not available) denotes invalid or missing data.

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