Hochelaga Maisonneuve, Longueuil, Quebec, Canada Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
August Air Quality Analysis
Hochelaga Maisonneuve, Longueuil, Quebec, Canada
AQI Trends: Highest and Lowest
Same Day Analysis (4th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 70 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 4th Aug - 5th Aug 2025
Hochelaga Maisonneuve, Longueuil, Quebec, Canada
5 AM4th Aug 2025
8 PM
4 AM5th Aug 2025
126AQI
57AQI
78AQI
48AQI
In the last 24 hours,
Hochelaga Maisonneuve's AQI reached its highest point of 126 at 2 PM during the Day, while the lowest point, 48, was recorded at 4 AM during the Night between 4th Aug and 5th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Hochelaga Maisonneuve, Longueuil, Quebec, Canada
27°C20/37°C
18°C15/23°C
22°C16/30°C
23°C16/31°C
24°C18/30°C
25°C18/32°C
26°C19/34°C
26°C23/31°C
26°C22/34°C
26°C19/34°C
28°C21/35°C
27°C18/31°C
20°C14/28°C
22°C15/30°C
21°C17/29°C
19°C14/24°C
19°C11/24°C
21°C12/29°C
26°C17/35°C
26°C23/31°C
24°C15/33°C
24°C18/31°C
27°C20/33°C
25°C21/29°C
24°C19/29°C
19°C15/24°C
18°C10/26°C
21°C12/30°C
24°C15/33°C
22°C17/27°C
--°C/°C
43AQI
43AQI
42AQI
42AQI
2025 Days Vs Air Quality
Hochelaga Maisonneuve, Longueuil, Quebec, Canada
91%
196
9%
20
Total number of days with different AQI categories in last 217 days in 2025 (148 days remaining)
Under WHO’s Safe Air Quality Limits: 91%
Health Risk Level:
Very Low
In 2025, 91% of 217 days were within WHO’s safe air quality limits. The risk of health issues is Very Low, but health impacts are still unclear.
Annual Air Quality Insights
Hochelaga Maisonneuve, Longueuil, Quebec, Canada
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
33AQI
24AQI
20AQI
20AQI
22AQI
25AQI
21AQI
20AQI
20AQI
21AQI
37AQI
39AQI
60AQI
35AQI
23AQI
31AQI
62AQI
45AQI
26AQI
23AQI
35AQI
40AQI
41AQI
44AQI
49AQI
38AQI
25AQI
26AQI
29AQI
25AQI
46AQI
25AQI
37AQI
57AQI
29AQI
23AQI
34AQI
35AQI
29AQI
37AQI
27AQI
27AQI
30AQI
27AQI
21AQI
23AQI
23AQI
21AQI
22AQI
21AQI
26AQI
20AQI
25AQI
49AQI
46AQI
57AQI
42AQI
43AQI
29AQI
27AQI
25AQI
36AQI
36AQI
57AQI
20AQI
20AQI
24AQI
25AQI
29AQI
44AQI
23AQI
43AQI
78AQI
59AQI
49AQI
30AQI
33AQI
43AQI
26AQI
21AQI
24AQI
20AQI
24AQI
25AQI
22AQI
21AQI
21AQI
21AQI
26AQI
31AQI
18AQI
20AQI
21AQI
19AQI
20AQI
18AQI
20AQI
21AQI
18AQI
25AQI
32AQI
42AQI
26AQI
33AQI
29AQI
16AQI
18AQI
26AQI
43AQI
17AQI
24AQI
22AQI
15AQI
26AQI
25AQI
25AQI
14AQI
23AQI
29AQI
18AQI
18AQI
24AQI
16AQI
27AQI
24AQI
22AQI
17AQI
17AQI
20AQI
23AQI
16AQI
22AQI
35AQI
37AQI
29AQI
42AQI
40AQI
21AQI
14AQI
15AQI
21AQI
16AQI
16AQI
14AQI
17AQI
24AQI
26AQI
33AQI
32AQI
25AQI
31AQI
18AQI
17AQI
24AQI
39AQI
42AQI
53AQI
58AQI
57AQI
59AQI
42AQI
50AQI
56AQI
27AQI
27AQI
30AQI
44AQI
44AQI
26AQI
37AQI
22AQI
26AQI
27AQI
40AQI
51AQI
47AQI
32AQI
29AQI
26AQI
31AQI
30AQI
33AQI
31AQI
38AQI
23AQI
27AQI
39AQI
43AQI
31AQI
42AQI
47AQI
49AQI
52AQI
44AQI
39AQI
38AQI
49AQI
48AQI
23AQI
31AQI
39AQI
32AQI
19AQI
24AQI
31AQI
37AQI
49AQI
56AQI
58AQI
54AQI
63AQI
46AQI
23AQI
32AQI
56AQI
70AQI
32AQI
32AQI
32AQI
23AQI
24AQI
37AQI
40AQI
45AQI
No. of days
202532AQI
Highest AQI recorded in
August45AQI
Lowest AQI recorded in
April23AQI
202430AQI
Highest AQI recorded in
December38AQI
Lowest AQI recorded in
April23AQI
202336AQI
Highest AQI recorded in
June55AQI
Lowest AQI recorded in
November25AQI
202233AQI
Highest AQI recorded in
January40AQI
Lowest AQI recorded in
September27AQI
202133AQI
Highest AQI recorded in
August46AQI
Lowest AQI recorded in
September24AQI
202027AQI
Highest AQI recorded in
November39AQI
Lowest AQI recorded in
April22AQI
Most & Least Polluted Years Over the Last 6 Years
Hochelaga Maisonneuve's annual 2025 AQI (32) shows an average percentage change of 0.5% (worsened AQI) compared to previous years: 2020 (27), 2021 (33), 2022 (33), 2023 (36), 2024 (30).