Air Quality in Mercier–Hochelaga-Maisonneuve, Canada

Rain
15.7°C · 59.1% humidity
15.7°
Feels 15.7°
19
Good
Air quality is satisfactory. Enjoy outdoor activities.
12 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
37 5pm
19
15
19 8pm
17
19
20 11pm
23
23
23 2am
24
24
24 5am
22
22
22 8am
22
22
22 11am
22
22
22 2pm
22
22
Station readings
37
19
15
12
CAMS model adj -3
25
25
25
27
24
25
25
27
27
27
27
27
27
25
25
25
25
25
25
25
25
25
25
25
AD 728×90

Air Quality Index Trend

44h · 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.

59.1%
Humidity
57.6 km/h
Wind NW
1012.6 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
19
4.52 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

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

Temperature & Precipitation

PM2.5 Trend

44h · 2 stations
PM2.54.52 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (12 stations within 25 km)
4.52
Median
8.02
Average
3.12
Low
24.67
High
PM2.5 µg/m³ · Model: 6.25 · Bias: +1.7

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

05-30
19.4° 9.0°
8.69 mm
05-31
23.7° 6.7°
1.94 mm
06-01
25.5° 18.6°
06-02
18.4° 11.1°
2.25 mm
06-03
27.3° 15.7°
06-04
22.5° 13.8°
0.88 mm
06-05
24.2° 12.5°
10.87 mm
Both models agree Avg diff: 4.3°C

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

12
canada-montreal-rue-ida-steinberg
1.6 km PM2.5: 2.9 µg/m³
–
canada-montreal-rue-leclaire
2.3 km PM2.5: 0.0 µg/m³
56
Montreal
7.1 km PM2.5: 14.5 µg/m³
–
canada-montreal-18e-avenue
9.0 km PM2.5: 0.0 µg/m³
12
Montréal, Ahuntsic Live Meteo Station
10.0 km 57.1°C 82.6% RH PM2.5: 3.0 µg/m³ PM10: 5.0 µg/m³
2
Laval, Quebec, Canada
13.5 km PM2.5: 0.5 µg/m³
36
Laval, Quebec, Canada
13.5 km PM2.5: 8.6 µg/m³
134
Laval, Quebec, Canada
13.5 km PM2.5: 48.9 µg/m³
108
Longueuil - secteur du parc Océanie (Brossard), Quebec, Canada
15.6 km PM2.5: 38.3 µg/m³
14
Longueuil - secteur du parc Océanie (Brossard), Quebec, Canada
15.6 km PM2.5: 3.4 µg/m³

What cities are near Mercier–Hochelaga-Maisonneuve?

32 Saint-Léonard 36 Villeray–Saint-Michel–Parc-Extension 24 Le Vieux-Longueuil 29 Le Plateau-Mont-Royal 42 Saint-Michel 35 Rosemont–La Petite-Patrie 32 Mile End 29 Montréal-Nord 31 Montréal 35 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 2026-05-30T00:40 UTC.