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!
June Air Quality Analysis
Maisonneuve, Longueuil, Quebec, Canada
AQI Trends: Highest and Lowest
Same Day Analysis (3rd June):
On this day, AQI across the 5 years varied significantly: 2026 ranks 4th highest AQI at 21 of Good air quality, showing improvement over 2025, 2024 and 2023 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 3rd Jun - 4th Jun 2026
Maisonneuve, Longueuil, Quebec, Canada
5 AM3rd Jun 2026
8 PM
4 AM4th Jun 2026
32AQI
12AQI
28AQI
22AQI
In the last 24 hours,
Maisonneuve's AQI reached its highest point of 32 at 10 AM during the Day, while the lowest point, 12, was recorded at 5 PM during the Day between 3rd Jun and 4th Jun 2026.
Day & Night AQI Trend : May - Jun 2026
Maisonneuve, Longueuil, Quebec, Canada
9°C6/10°C
9°C6/13°C
9°C6/13°C
12°C3/21°C
12°C7/15°C
9°C6/13°C
9°C3/15°C
9°C5/14°C
10°C8/12°C
14°C10/18°C
18°C10/27°C
20°C14/27°C
16°C11/22°C
22°C15/29°C
18°C10/20°C
11°C5/17°C
14°C5/23°C
16°C7/25°C
13°C11/15°C
15°C12/20°C
21°C12/32°C
20°C16/24°C
16°C12/20°C
14°C11/18°C
13°C8/20°C
14°C9/21°C
15°C8/24°C
17°C10/25°C
22°C12/31°C
24°C15/32°C
44AQI
28AQI
41AQI
29AQI
2026 Days Vs Air Quality
Maisonneuve, Longueuil, Quebec, Canada
92%
139
8%
12
Total number of days with different AQI categories in last 155 days in 2026 (210 days remaining)
Under WHO’s Safe Air Quality Limits: 92%
Health Risk Level:
Very Low
In 2026, 92% of 155 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
Maisonneuve, Longueuil, Quebec, Canada
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
17AQI (US)
31AQI (US)
18AQI (US)
41AQI (US)
43AQI (US)
59AQI (US)
57AQI (US)
65AQI (US)
44AQI (US)
16AQI (US)
17AQI (US)
18AQI (US)
48AQI (US)
41AQI (US)
35AQI (US)
16AQI (US)
39AQI (US)
34AQI (US)
45AQI (US)
21AQI (US)
27AQI (US)
48AQI (US)
53AQI (US)
48AQI (US)
47AQI (US)
47AQI (US)
45AQI (US)
46AQI (US)
51AQI (US)
50AQI (US)
45AQI (US)
48AQI (US)
48AQI (US)
50AQI (US)
53AQI (US)
49AQI (US)
40AQI (US)
39AQI (US)
44AQI (US)
45AQI (US)
46AQI (US)
47AQI (US)
46AQI (US)
54AQI (US)
50AQI (US)
42AQI (US)
43AQI (US)
45AQI (US)
42AQI (US)
41AQI (US)
42AQI (US)
38AQI (US)
35AQI (US)
40AQI (US)
44AQI (US)
42AQI (US)
35AQI (US)
34AQI (US)
38AQI (US)
42AQI (US)
52AQI (US)
45AQI (US)
44AQI (US)
41AQI (US)
38AQI (US)
39AQI (US)
38AQI (US)
39AQI (US)
34AQI (US)
41AQI (US)
41AQI (US)
39AQI (US)
37AQI (US)
36AQI (US)
36AQI (US)
35AQI (US)
33AQI (US)
32AQI (US)
36AQI (US)
36AQI (US)
36AQI (US)
40AQI (US)
36AQI (US)
34AQI (US)
30AQI (US)
31AQI (US)
35AQI (US)
31AQI (US)
27AQI (US)
25AQI (US)
32AQI (US)
35AQI (US)
28AQI (US)
31AQI (US)
29AQI (US)
27AQI (US)
27AQI (US)
31AQI (US)
28AQI (US)
31AQI (US)
33AQI (US)
30AQI (US)
32AQI (US)
34AQI (US)
33AQI (US)
29AQI (US)
34AQI (US)
35AQI (US)
30AQI (US)
28AQI (US)
26AQI (US)
30AQI (US)
32AQI (US)
34AQI (US)
29AQI (US)
25AQI (US)
22AQI (US)
26AQI (US)
27AQI (US)
25AQI (US)
21AQI (US)
28AQI (US)
32AQI (US)
31AQI (US)
28AQI (US)
27AQI (US)
33AQI (US)
31AQI (US)
30AQI (US)
30AQI (US)
25AQI (US)
46AQI (US)
52AQI (US)
57AQI (US)
57AQI (US)
53AQI (US)
48AQI (US)
44AQI (US)
44AQI (US)
50AQI (US)
47AQI (US)
45AQI (US)
29AQI (US)
26AQI (US)
18AQI (US)
19AQI (US)
20AQI (US)
25AQI (US)
26AQI (US)
23AQI (US)
21AQI (US)
39AQI (US)
44AQI (US)
37AQI (US)
30AQI (US)
35AQI (US)
23AQI (US)
No. of days
202637AQI (US)
Highest AQI (US) recorded in
February44AQI (US)
Lowest AQI (US) recorded in
June23AQI (US)
202532AQI (US)
Highest AQI (US) recorded in
July40AQI (US)
Lowest AQI (US) recorded in
April23AQI (US)
202430AQI (US)
Highest AQI (US) recorded in
December38AQI (US)
Lowest AQI (US) recorded in
April24AQI (US)
202336AQI (US)
Highest AQI (US) recorded in
June59AQI (US)
Lowest AQI (US) recorded in
October25AQI (US)
202232AQI (US)
Highest AQI (US) recorded in
January41AQI (US)
Lowest AQI (US) recorded in
August19AQI (US)
202131AQI (US)
Highest AQI (US) recorded in
August42AQI (US)
Lowest AQI (US) recorded in
September17AQI (US)
202024AQI (US)
Highest AQI (US) recorded in
November31AQI (US)
Lowest AQI (US) recorded in
October19AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Maisonneuve's annual 2026 AQI (US) (37) shows an average percentage change of 21.8% (worsened AQI (US)) compared to previous years: 2020 (24), 2021 (31), 2022 (32), 2023 (36), 2024 (30), 2025 (32).