Air Quality in Mercier–Hochelaga-Maisonneuve, Canada

Windy
19.6°C · 45.4% humidity
19.6°
Feels 19.6°
64
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
2 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
71 7pm
73
73
64 10pm
67
68
70 1am
71
71
72 4am
72
72
73 7am
73
66
66 10am
66
66
64 1pm
64
64
64 4pm
64
64
Station readings
71
73
73
CAMS model adj +39
27
34
34
34
34
34
34
34
34
34
34
34
34
34
27
27
27
27
25
25
25
25
25
25
AD 728×90

Air Quality Index Trend

47h · 2 stn

Mercier–Hochelaga-Maisonneuve's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration. Current PM2.5 concentration in Mercier–Hochelaga-Maisonneuve is 1.2× the WHO 24-hour guideline of 15 µg/m³.

45.4%
Humidity
59.0 km/h
Wind WSW
1011.0 hPa
Pressure
2.2
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
64
18.13 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Mercier–Hochelaga-Maisonneuve?

Temperature & Precipitation

PM2.5 Trend

47h · 2 stations
PM2.518.13 µg/m³ ×1.2 WHO
Moderate
PM1013.7 µg/m³
Good
UV INDEX2.2
Moderate
AD 300×250
Station readings (2 stations within 25 km)
18.13
Median
17.09
Average
16.0
Low
18.18
High
PM2.5 µg/m³ · Model: 6.25 · Bias: -11.9

What is the 7-day forecast for Mercier–Hochelaga-Maisonneuve?

08-03
24.8° 15.9°
08-04
29.4° 17.3°
1.69 mm
08-05
28.6° 16.2°
0.75 mm
08-06
27.6° 19.2°
1.75 mm
08-07
25.1° 15.7°
1.88 mm
08-08
25.4° 18.2°
08-09
32.2° 19.1°
0.62 mm
Both models agree Avg diff: 4.0°C

Where are air quality stations near Mercier–Hochelaga-Maisonneuve?

73
canada-montreal-rue-ida-steinberg
1.6 km PM2.5: 22.6 µg/m³
–
canada-montreal-rue-leclaire
2.3 km PM2.5: 0.0 µg/m³
62
Anjou, Montreal, Canada
3.6 km PM2.5: 17.3 µg/m³
52
Anjou, Montreal, Canada
3.6 km PM2.5: 12.6 µg/m³
42
Anjou, Montreal, Canada
3.6 km PM2.5: 10.1 µg/m³
33
Anjou, Montreal, Canada
3.6 km PM2.5: 7.9 µg/m³
40
Anjou, Montreal, Canada
3.6 km PM2.5: 9.6 µg/m³
38
Anjou, Montreal, Canada
3.6 km PM2.5: 9.1 µg/m³
22
Anjou, Montreal, Canada
3.6 km PM2.5: 5.3 µg/m³
47
Anjou, Montreal, Canada
3.6 km PM2.5: 11.3 µg/m³

What cities are near Mercier–Hochelaga-Maisonneuve?

62 Saint-Léonard 61 Villeray–Saint-Michel–Parc-Extension 64 Le Vieux-Longueuil 62 Le Plateau-Mont-Royal 60 Saint-Michel 61 Rosemont–La Petite-Patrie 62 Mile End 61 Montréal-Nord 62 Montréal 61 Outremont
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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 2026-08-08T02:37 UTC.