Air Quality in Le Vieux-Longueuil, Canada

Windy
12.3°C · 74.5% humidity
12.3°
Feels 12.3°
30
Good
Air quality is satisfactory. Enjoy outdoor activities.
13 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
13 4pm
10
13
30 7pm
27
51
48 10pm
46
45
44 1am
24
16
16 4am
16
15
15 7am
15
15
15 10am
15
15
15 1pm
15
15
Station readings
13
10
13
12
CAMS model adj -12
25
25
25
25
27
54
54
54
54
54
34
27
27
27
27
27
27
27
27
27
27
27
27
27
AD 728×90

Air Quality Index Trend

48h · 2 stn

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

74.5%
Humidity
43.1 km/h
Wind SW
998.1 hPa
Pressure
1.4
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
30
7.3 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

What is the weather forecast for Le Vieux-Longueuil?

Temperature & Precipitation

PM2.5 Trend

48h · 2 stations
PM2.57.3 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX1.4
Low
AD 300×250
Station readings (13 stations within 25 km)
7.3
Median
8.28
Average
2.67
Low
11.0
High
PM2.5 µg/m³ · Model: 7.1 · Bias: -0.2

What is the 7-day forecast for Le Vieux-Longueuil?

06-08
19.0° 9.7°
0.06 mm
06-09
23.4° 11.7°
1.13 mm
06-10
19.3° 12.2°
15.62 mm
06-11
24.5° 9.5°
06-12
22.3° 15.5°
13.13 mm
06-13
26.2° 16.9°
17.75 mm
06-14
26.2° 12.3°
10.5 mm
Both models agree Avg diff: 6.9°C

Where are air quality stations near Le Vieux-Longueuil?

–
canada-montreal-rue-leclaire
2.6 km PM2.5: 0.0 µg/m³
12
canada-montreal-rue-ida-steinberg
3.3 km PM2.5: 2.9 µg/m³
56
Montreal
4.8 km PM2.5: 14.5 µg/m³
155
Longueuil - secteur du parc Océanie (Brossard), Quebec, Canada
11.0 km PM2.5: 63.2 µg/m³
15
Longueuil - secteur du parc Océanie (Brossard), Quebec, Canada
11.0 km PM2.5: 3.6 µg/m³
27
Longueuil - secteur du parc Océanie (Brossard), Quebec, Canada
11.0 km PM2.5: 6.5 µg/m³
114
Longueuil - secteur du parc Océanie (Brossard), Quebec, Canada
11.0 km PM2.5: 40.8 µg/m³
–
canada-montreal-18e-avenue
12.2 km PM2.5: 0.0 µg/m³
8
Montréal, Ahuntsic Live Meteo Station
13.0 km 85.8°C 31.4% RH PM2.5: 2.0 µg/m³ PM10: 4.0 µg/m³
2
Laval, Quebec, Canada
17.7 km PM2.5: 0.5 µg/m³

What cities are near Le Vieux-Longueuil?

35 Longueuil 23 Mercier–Hochelaga-Maisonneuve 35 Laflèche 42 Le Plateau-Mont-Royal 43 Ville-Marie 35 Greenfield Park 41 Montréal 40 Mile End 38 Rosemont–La Petite-Patrie 36 Villeray–Saint-Michel–Parc-Extension
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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 2026-06-08T23:27 UTC.