Brantford, Ontario, Canada Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
July Air Quality Analysis
Brantford, Ontario, Canada
AQI Trends: Highest and Lowest
Same Day Analysis (31st July ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 90 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
2025 Days Vs Air Quality
Brantford, Ontario, Canada
88%
186
12%
26
Total number of days with different AQI categories in last 213 days in 2025 (152 days remaining)
Under WHO’s Safe Air Quality Limits: 88%
Health Risk Level:
Low
In 2025, 88% of 213 days were within WHO’s safe air quality limits. The risk of health issues is Low, but the long-term effects, especially on vulnerable individuals, remain uncertain.
Annual Air Quality Insights
Brantford, Ontario, Canada
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
23AQI
21AQI
26AQI
27AQI
26AQI
24AQI
24AQI
27AQI
29AQI
43AQI
59AQI
51AQI
37AQI
29AQI
26AQI
50AQI
43AQI
28AQI
28AQI
27AQI
24AQI
28AQI
39AQI
27AQI
51AQI
32AQI
27AQI
29AQI
27AQI
26AQI
53AQI
28AQI
29AQI
55AQI
27AQI
25AQI
36AQI
28AQI
43AQI
35AQI
30AQI
50AQI
27AQI
31AQI
30AQI
37AQI
29AQI
28AQI
27AQI
23AQI
22AQI
28AQI
49AQI
57AQI
52AQI
51AQI
42AQI
42AQI
26AQI
31AQI
29AQI
32AQI
34AQI
40AQI
27AQI
31AQI
33AQI
30AQI
30AQI
30AQI
29AQI
30AQI
57AQI
58AQI
28AQI
17AQI
23AQI
34AQI
24AQI
19AQI
17AQI
19AQI
21AQI
19AQI
19AQI
27AQI
33AQI
44AQI
34AQI
24AQI
23AQI
19AQI
30AQI
20AQI
23AQI
29AQI
21AQI
15AQI
19AQI
27AQI
35AQI
26AQI
36AQI
29AQI
19AQI
15AQI
19AQI
36AQI
44AQI
22AQI
23AQI
15AQI
34AQI
44AQI
48AQI
31AQI
19AQI
23AQI
36AQI
25AQI
35AQI
38AQI
25AQI
20AQI
20AQI
23AQI
36AQI
24AQI
28AQI
30AQI
24AQI
32AQI
42AQI
30AQI
35AQI
32AQI
27AQI
18AQI
19AQI
16AQI
21AQI
15AQI
11AQI
12AQI
15AQI
23AQI
30AQI
26AQI
27AQI
34AQI
35AQI
17AQI
22AQI
36AQI
69AQI
51AQI
63AQI
66AQI
84AQI
67AQI
53AQI
61AQI
68AQI
49AQI
37AQI
40AQI
40AQI
43AQI
38AQI
27AQI
36AQI
44AQI
45AQI
53AQI
55AQI
48AQI
48AQI
44AQI
32AQI
35AQI
40AQI
32AQI
38AQI
45AQI
39AQI
48AQI
51AQI
47AQI
37AQI
44AQI
43AQI
52AQI
47AQI
42AQI
47AQI
60AQI
71AQI
45AQI
26AQI
32AQI
26AQI
45AQI
26AQI
27AQI
40AQI
32AQI
50AQI
36AQI
49AQI
48AQI
50AQI
90AQI
33AQI
35AQI
30AQI
27AQI
26AQI
47AQI
44AQI
No. of days
202534AQI
Highest AQI recorded in
June47AQI
Lowest AQI recorded in
May26AQI
202434AQI
Highest AQI recorded in
January38AQI
Lowest AQI recorded in
November27AQI
202342AQI
Highest AQI recorded in
June70AQI
Lowest AQI recorded in
October31AQI
202234AQI
Highest AQI recorded in
May38AQI
Lowest AQI recorded in
August19AQI
202136AQI
Highest AQI recorded in
July41AQI
Lowest AQI recorded in
October28AQI
202033AQI
Highest AQI recorded in
June37AQI
Lowest AQI recorded in
October27AQI
Most & Least Polluted Years Over the Last 6 Years
Brantford's annual 2025 AQI (34) shows an average percentage change of -3.1% (improved AQI) compared to previous years: 2020 (33), 2021 (36), 2022 (34), 2023 (42), 2024 (34).
