Castle Street, Saint John, NewBrunswick, Canada

Monitoring Station · Saint John, Canada
34
Good
Air quality is satisfactory. Enjoy outdoor activities.
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Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
44 6pm
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44 9pm
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44 12am
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44 3am
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44 6am
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44
— 9am
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CAMS model adj +20
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Air Quality Trend (24h)

PM2.58.2 µg/m³ ✓ WHO
Good
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Nearby Monitoring Stations

34
Castle Street, Saint John, NewBrunswick, Canada
0.0 km PM2.5: 8.2 µg/m³
32
Castle Street, Saint John, NewBrunswick, Canada
0.0 km PM2.5: 7.7 µg/m³
40
Castle Street, Saint John, NewBrunswick, Canada
0.0 km PM2.5: 9.6 µg/m³
38
Castle Street, Saint John, NewBrunswick, Canada
0.0 km PM2.5: 9.1 µg/m³
22
Castle Street, Saint John, NewBrunswick, Canada
0.0 km PM2.5: 5.3 µg/m³
32
Castle Street, Saint John, NewBrunswick, Canada
0.0 km PM2.5: 7.7 µg/m³
19
Castle Street, Saint John, NewBrunswick, Canada
0.0 km PM2.5: 4.6 µg/m³
36
Castle Street, Saint John, NewBrunswick, Canada
0.0 km PM2.5: 8.6 µg/m³

Nearby Cities

29 Saint John 27 Saint John West 37 Quispamsis 24 Fredericton 24 Fredericton Northside 22 Riverview 22 Lutes Mountain 22 Moncton 22 Dieppe

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-04-15T21:19 UTC.