NASA GSFC Rutgers Calib. N15 Air Quality

Monitoring Station · Alliston, Canada
25
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading

Nearby Monitoring Stations

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AQI Forecast Calibrated
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Station readings
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CAMS model adj -1
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Air Quality Forecast (24h)

PM2.55.9 µg/m³ ✓ WHO
Good
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Nearby Monitoring Stations

17
Barrie, Ontario
17.9 km PM2.5: 4.0 µg/m³
25
Barrie, Ontario, Canada
17.9 km PM2.5: 6.0 µg/m³
21
Barrie, Ontario, Canada
17.9 km PM2.5: 5.0 µg/m³
17
Barrie, Ontario, Canada
17.9 km PM2.5: 4.1 µg/m³
18
Newmarket, Ontario, Canada
31.6 km PM2.5: 4.3 µg/m³
21
Newmarket, Ontario, Canada
31.6 km PM2.5: 5.0 µg/m³
25
Newmarket, Ontario, Canada
31.6 km PM2.5: 6.0 µg/m³
18
Newmarket, Ontario, Canada
31.6 km PM2.5: 4.3 µg/m³

Nearby Cities

25 Alliston 19 Innisfil 17 Barrie 18 Keswick 21 East Gwillimbury 21 Newmarket 21 Aurora 32 Wasaga Beach 20 Bolton

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-09-05T16:40 UTC.