Castle Street, Saint John, NewBrunswick, Canada

Monitoring Station · Saint John, Canada
32
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
43 8pm
43
32
43 11pm
43
43
43 2am
43
43
43 5am
36
34
34 8am
33
33
— 11am
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Station readings
32
CAMS model adj +9
34
34
34
34
34
34
34
34
34
34
27
25
25
24
24

Air Quality Trend (24h)

PM2.57.7 µg/m³ ✓ WHO
Good
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Nearby Monitoring Stations

36
Castle Street, Saint John, NewBrunswick, Canada
0.0 km PM2.5: 8.6 µg/m³
36
Castle Street, Saint John, NewBrunswick, Canada
0.0 km PM2.5: 8.6 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
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
32
Castle Street, Saint John, NewBrunswick, Canada
0.0 km PM2.5: 7.7 µg/m³
31
Castle Street, Saint John, NewBrunswick, Canada
0.0 km PM2.5: 7.4 µg/m³

Nearby Cities

30 Saint John 27 Saint John West 26 Quispamsis 10 Fredericton 10 Fredericton Northside 30 Riverview 30 Lutes Mountain 30 Moncton 30 Dieppe

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-04-14T23:07 UTC.