Belleville, Ontario, Canada Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
September Air Quality Analysis
Belleville, Ontario, Canada
AQI Trends: Highest and Lowest
Same Day Analysis (28th September):
On this day, AQI across the 5 years varied significantly: 2026 ranks 2nd highest AQI at 26 of Good air quality, showing improvement over 2023 on the same day.
Day & Night AQI Trend: 28th Sep - 29th Sep 2026
Belleville, Ontario, Canada
6 AM28th Sep 2026
7 PM
5 AM29th Sep 2026
38AQI
20AQI
45AQI
25AQI
In the last 24 hours,
Belleville's AQI reached its highest point of 45 at 4 AM during the Night, while the lowest point, 20, was recorded at 3 PM during the Day between 28th Sep and 29th Sep 2026.
Day & Night AQI Trend : Aug - Sep 2026
Belleville, Ontario, Canada
19°C15/22°C
21°C19/25°C
22°C18/27°C
22°C18/29°C
19°C14/25°C
19°C13/24°C
18°C14/25°C
17°C10/26°C
19°C11/25°C
21°C17/23°C
20°C15/25°C
16°C8/23°C
18°C8/27°C
21°C16/27°C
15°C9/21°C
16°C10/21°C
21°C17/27°C
19°C14/26°C
16°C13/21°C
12°C6/19°C
15°C9/22°C
11°C6/16°C
11°C6/18°C
13°C6/21°C
13°C7/21°C
14°C7/23°C
16°C10/23°C
16°C12/23°C
16°C12/22°C
16°C12/23°C
35AQI
27AQI
35AQI
30AQI
2026 Days Vs Air Quality
Belleville, Ontario, Canada
93%
248
7%
20
Total number of days with different AQI categories in last 272 days in 2026 (93 days remaining)
Under WHO’s Safe Air Quality Limits: 93%
Health Risk Level:
Very Low
In 2026, 93% of 272 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
Belleville, Ontario, Canada
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
12AQI (US)
22AQI (US)
9AQI (US)
14AQI (US)
29AQI (US)
56AQI (US)
57AQI (US)
51AQI (US)
35AQI (US)
14AQI (US)
14AQI (US)
21AQI (US)
39AQI (US)
36AQI (US)
10AQI (US)
11AQI (US)
24AQI (US)
21AQI (US)
30AQI (US)
13AQI (US)
18AQI (US)
50AQI (US)
53AQI (US)
47AQI (US)
47AQI (US)
47AQI (US)
44AQI (US)
47AQI (US)
51AQI (US)
53AQI (US)
47AQI (US)
45AQI (US)
52AQI (US)
55AQI (US)
47AQI (US)
48AQI (US)
53AQI (US)
40AQI (US)
47AQI (US)
47AQI (US)
44AQI (US)
40AQI (US)
39AQI (US)
48AQI (US)
51AQI (US)
44AQI (US)
46AQI (US)
56AQI (US)
46AQI (US)
42AQI (US)
40AQI (US)
36AQI (US)
36AQI (US)
40AQI (US)
46AQI (US)
45AQI (US)
37AQI (US)
41AQI (US)
39AQI (US)
39AQI (US)
61AQI (US)
50AQI (US)
48AQI (US)
44AQI (US)
46AQI (US)
41AQI (US)
41AQI (US)
40AQI (US)
36AQI (US)
44AQI (US)
42AQI (US)
42AQI (US)
36AQI (US)
35AQI (US)
39AQI (US)
35AQI (US)
32AQI (US)
39AQI (US)
43AQI (US)
38AQI (US)
41AQI (US)
42AQI (US)
37AQI (US)
33AQI (US)
37AQI (US)
28AQI (US)
31AQI (US)
33AQI (US)
27AQI (US)
29AQI (US)
32AQI (US)
31AQI (US)
29AQI (US)
32AQI (US)
29AQI (US)
32AQI (US)
28AQI (US)
33AQI (US)
30AQI (US)
31AQI (US)
31AQI (US)
31AQI (US)
34AQI (US)
38AQI (US)
36AQI (US)
32AQI (US)
28AQI (US)
32AQI (US)
28AQI (US)
28AQI (US)
24AQI (US)
25AQI (US)
27AQI (US)
32AQI (US)
27AQI (US)
25AQI (US)
22AQI (US)
26AQI (US)
27AQI (US)
24AQI (US)
23AQI (US)
32AQI (US)
33AQI (US)
30AQI (US)
28AQI (US)
30AQI (US)
33AQI (US)
29AQI (US)
25AQI (US)
35AQI (US)
22AQI (US)
46AQI (US)
53AQI (US)
56AQI (US)
57AQI (US)
54AQI (US)
50AQI (US)
45AQI (US)
44AQI (US)
52AQI (US)
48AQI (US)
45AQI (US)
33AQI (US)
30AQI (US)
28AQI (US)
26AQI (US)
27AQI (US)
30AQI (US)
30AQI (US)
31AQI (US)
32AQI (US)
26AQI (US)
27AQI (US)
25AQI (US)
24AQI (US)
26AQI (US)
26AQI (US)
28AQI (US)
27AQI (US)
27AQI (US)
24AQI (US)
25AQI (US)
26AQI (US)
27AQI (US)
27AQI (US)
26AQI (US)
25AQI (US)
24AQI (US)
22AQI (US)
24AQI (US)
24AQI (US)
24AQI (US)
25AQI (US)
27AQI (US)
32AQI (US)
28AQI (US)
26AQI (US)
30AQI (US)
34AQI (US)
27AQI (US)
28AQI (US)
26AQI (US)
27AQI (US)
28AQI (US)
30AQI (US)
29AQI (US)
34AQI (US)
32AQI (US)
30AQI (US)
57AQI (US)
42AQI (US)
45AQI (US)
76AQI (US)
80AQI (US)
49AQI (US)
44AQI (US)
41AQI (US)
34AQI (US)
48AQI (US)
29AQI (US)
34AQI (US)
30AQI (US)
26AQI (US)
34AQI (US)
47AQI (US)
44AQI (US)
26AQI (US)
28AQI (US)
26AQI (US)
30AQI (US)
32AQI (US)
22AQI (US)
26AQI (US)
30AQI (US)
32AQI (US)
44AQI (US)
44AQI (US)
28AQI (US)
36AQI (US)
33AQI (US)
32AQI (US)
41AQI (US)
29AQI (US)
30AQI (US)
28AQI (US)
28AQI (US)
34AQI (US)
28AQI (US)
28AQI (US)
29AQI (US)
27AQI (US)
27AQI (US)
31AQI (US)
26AQI (US)
24AQI (US)
26AQI (US)
25AQI (US)
34AQI (US)
28AQI (US)
32AQI (US)
34AQI (US)
30AQI (US)
28AQI (US)
31AQI (US)
36AQI (US)
32AQI (US)
29AQI (US)
31AQI (US)
28AQI (US)
26AQI (US)
34AQI (US)
36AQI (US)
30AQI (US)
26AQI (US)
28AQI (US)
35AQI (US)
32AQI (US)
29AQI (US)
28AQI (US)
28AQI (US)
28AQI (US)
27AQI (US)
29AQI (US)
29AQI (US)
31AQI (US)
40AQI (US)
44AQI (US)
26AQI (US)
33AQI (US)
45AQI (US)
39AQI (US)
30AQI (US)
37AQI (US)
27AQI (US)
38AQI (US)
30AQI (US)
31AQI (US)
No. of days
202634AQI (US)
Highest AQI (US) recorded in
February45AQI (US)
Lowest AQI (US) recorded in
June27AQI (US)
202529AQI (US)
Highest AQI (US) recorded in
July40AQI (US)
Lowest AQI (US) recorded in
May20AQI (US)
202428AQI (US)
Highest AQI (US) recorded in
February33AQI (US)
Lowest AQI (US) recorded in
November18AQI (US)
202337AQI (US)
Highest AQI (US) recorded in
June76AQI (US)
Lowest AQI (US) recorded in
October25AQI (US)
202230AQI (US)
Highest AQI (US) recorded in
February34AQI (US)
Lowest AQI (US) recorded in
August20AQI (US)
202131AQI (US)
Highest AQI (US) recorded in
August38AQI (US)
Lowest AQI (US) recorded in
October24AQI (US)
202032AQI (US)
Highest AQI (US) recorded in
June38AQI (US)
Lowest AQI (US) recorded in
October26AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Belleville's annual 2026 AQI (US) (34) shows an average percentage change of 9.9% (worsened AQI (US)) compared to previous years: 2020 (32), 2021 (31), 2022 (30), 2023 (37), 2024 (28), 2025 (29).