NASA GSFC Rutgers Calib. N15 Air Quality

Monitoring Station · Alliston, Canada
39
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
39 9pm
39
48
48 12am
68
68
68 3am
68
80
80 6am
68
68
80 9am
80
68
— 12pm
—
—
— 3pm
—
—
— 6pm
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Station readings
39
39
CAMS model adj +14
27
34
34
34
54
54
54
54
66
66
54
54
66
66
54

Air Quality Forecast (24h)

PM2.59.3 µg/m³ ✓ WHO
Good
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Nearby Monitoring Stations

38
Barrie, Ontario
17.9 km PM2.5: 9.0 µg/m³
34
Barrie, Ontario, Canada
17.9 km PM2.5: 8.2 µg/m³
30
Barrie, Ontario, Canada
17.9 km PM2.5: 7.2 µg/m³
34
Barrie, Ontario, Canada
17.9 km PM2.5: 8.2 µg/m³
50
Barrie, Ontario, Canada
17.9 km PM2.5: 12.0 µg/m³
34
Barrie, Ontario, Canada
17.9 km PM2.5: 8.2 µg/m³
38
Barrie, Ontario, Canada
17.9 km PM2.5: 9.1 µg/m³
38
Barrie, Ontario, Canada
17.9 km PM2.5: 9.1 µg/m³

Nearby Cities

31 Alliston 52 Innisfil 52 Barrie 54 Keswick 57 East Gwillimbury 57 Newmarket 57 Aurora 25 Wasaga Beach 35 Bolton

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-08-08T00:43 UTC.