Air Quality in Ajax, Canada

Drizzle
7.8°C · 94.8% humidity
7.8°
Feels 1.2°
28
Good
Air quality is satisfactory. Enjoy outdoor activities.
4 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
31 5pm
31
31
28 8pm
31
31
31 11pm
31
31
30 2am
30
30
31 5am
31
31
31 8am
31
33
40 11am
60
60
60 2pm
60
60
Station readings 26h ago
AQI 30
PM2.5 7.3 µg/m³ · 26h ago
AD 728×90

Air Quality Index Trend

48h · 6 stn

Ajax's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.

94.8%
Humidity
79.7 km/h
Wind NW
999.8 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
28
6.76 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Ajax?

Temperature & Precipitation

PM2.5 Trend

48h · 6 stations
PM2.56.76 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (4 stations within 25 km)
6.76
Median
6.38
Average
5.3
Low
7.7
High
PM2.5 µg/m³ · Model: 6.25 · Bias: -0.5

What is the 7-day forecast for Ajax?

06-09
29.9° 7.8°
0.88 mm
06-10
16.7° 11.8°
06-11
25.5° 8.5°
06-12
26.3° 15.4°
06-13
22.2° 17.8°
3.94 mm
06-14
24.7° 12.1°
06-15
28.0° 15.0°
3.31 mm
Both models agree Avg diff: 6.8°C

Where are air quality stations near Ajax?

10
Oshawa, Ontario, Canada
15.4 km PM2.5: 2.4 µg/m³
113
Oshawa, Ontario, Canada
15.4 km PM2.5: 40.4 µg/m³
130
Oshawa, Ontario, Canada
15.4 km PM2.5: 47.3 µg/m³
69
Toronto East, Ontario, Canada
22.4 km PM2.5: 20.7 µg/m³
17
Toronto East, Ontario, Canada
22.4 km PM2.5: 4.1 µg/m³
36
Toronto East, Ontario, Canada
22.4 km PM2.5: 8.6 µg/m³

What cities are near Ajax?

31 Whitby 27 Pickering 26 Rouge 31 Brooklin 25 West Hill 25 Morningside 31 Oshawa 25 Malvern 24 Woburn 27 Markham
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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 2026-06-09T00:40 UTC.