NASA GSFC Rutgers Calib. N15 Air Quality

Monitoring Station · Alliston, Canada
27
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
27 11pm
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27 2am
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27 5am
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29 8am
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29 11am
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Station readings
27
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CAMS model adj +2
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Air Quality Forecast (24h)

PM2.56.4 µg/m³ ✓ WHO
Good
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Nearby Monitoring Stations

25
Barrie, Ontario
17.9 km PM2.5: 6.0 µg/m³
82
Barrie, Ontario, Canada
17.9 km PM2.5: 26.8 µg/m³
90
Barrie, Ontario, Canada
17.9 km PM2.5: 30.6 µg/m³
84
Newmarket, Ontario, Canada
31.6 km PM2.5: 27.8 µg/m³
94
Newmarket, Ontario, Canada
31.6 km PM2.5: 32.5 µg/m³

Nearby Cities

27 Alliston 28 Innisfil 28 Barrie 30 Keswick 32 East Gwillimbury 32 Newmarket 32 Aurora 35 Wasaga Beach 27 Bolton

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-06-09T02:22 UTC.