Air Quality in Ajax, Canada
Windy
14.6°C · 89.9% humidity
14.6°
Feels 14.6°
10
Good
Air quality is satisfactory. Enjoy outdoor activities.
3 stations
Nearby Monitoring Stations
Ajax's air quality — share it
AQI Forecast
Calibrated
8
5am
8
8
10
8am
8
8
9
11am
9
9
8
2pm
8
8
8
5pm
8
8
8
8pm
9
9
8
11pm
8
8
8
2am
8
8
Station readings
3
4
CAMS model
adj -16
24
24
24
24
24
24
25
25
25
24
24
24
24
24
24
24
25
25
24
24
24
24
24
24
Air Quality Index Trend
46h · 1 stnAjax's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.
89.9%
Humidity
62.3 km/h
Wind NNW
1012.9 hPa
Pressure
1.4
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5
2.53 µg/m³
PM10▲
13.7 µg/m³
050100150200300500
What is the weather forecast for Ajax?
Temperature & Precipitation
PM2.5 Trend
46h · 1 stationPM2.52.53 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX1.4
Low
Station readings (3 stations within 25 km)
2.53
Median
2.77
Average
1.4
Low
5.0
High
PM2.5 µg/m³ · Model: 5.8 · Bias: +3.3
What is the 7-day forecast for Ajax?
09-05
24.0° 12.6°
0.25 mm
09-06
22.5° 15.4°
2.81 mm
09-07
21.2° 13.4°
0.06 mm
09-08
21.6° 14.4°
0.5 mm
09-09
24.4° 11.2°
0.44 mm
09-10
22.0° 13.4°
2.63 mm
09-11
24.1° 10.2°
0.38 mm
Both models agree
Avg diff: 4.0°C
Where are air quality stations near Ajax?
21
Oshawa, Ontario, Canada
25
Oshawa, Ontario, Canada
24
Oshawa, Ontario, Canada
17
Oshawa, Ontario, Canada
22
Oshawa, Ontario, Canada
21
Toronto East, Ontario, Canada
17
Toronto East, Ontario, Canada
4
Wood Glen
What cities are near Ajax?
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Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-09-05T12:10 UTC.