Duncan, British Columbia, 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
Duncan, British Columbia, Canada
AQI Trends: Highest and Lowest
Same Day Analysis (30th July):
On this day, AQI across the 5 years varied significantly: 2026 ranks 1st highest AQI at 74 of Moderate air quality on the same day.
Day & Night AQI Trend: 29th Jul - 30th Jul 2026
Duncan, British Columbia, Canada
5 AM29th Jul 2026
9 PM
4 AM30th Jul 2026
77AQI
8AQI
65AQI
45AQI
In the last 24 hours,
Duncan's AQI reached its highest point of 77 at 7 PM during the Day, while the lowest point, 8, was recorded at 5 AM during the Day between 29th Jul and 30th Jul 2026.
Day & Night AQI Trend : Jul 2026
Duncan, British Columbia, Canada
16°C11/20°C
14°C11/17°C
17°C13/22°C
17°C12/23°C
18°C12/24°C
20°C13/27°C
20°C14/25°C
19°C16/24°C
19°C13/24°C
20°C15/26°C
18°C13/23°C
17°C12/23°C
18°C11/25°C
20°C13/28°C
20°C14/27°C
18°C14/24°C
17°C14/24°C
18°C13/24°C
19°C13/25°C
21°C14/29°C
23°C15/30°C
25°C17/31°C
24°C20/30°C
20°C15/27°C
19°C14/22°C
16°C15/21°C
18°C13/24°C
19°C14/25°C
18°C13/25°C
18°C13/25°C
47AQI
34AQI
45AQI
34AQI
2026 Days Vs Air Quality
Duncan, British Columbia, Canada
93%
193
7%
15
Total number of days with different AQI categories in last 211 days in 2026 (154 days remaining)
Under WHO’s Safe Air Quality Limits: 93%
Health Risk Level:
Very Low
In 2026, 93% of 211 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
Duncan, British Columbia, Canada
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
61AQI (US)
63AQI (US)
30AQI (US)
17AQI (US)
23AQI (US)
16AQI (US)
15AQI (US)
15AQI (US)
20AQI (US)
29AQI (US)
14AQI (US)
14AQI (US)
12AQI (US)
15AQI (US)
15AQI (US)
21AQI (US)
33AQI (US)
37AQI (US)
39AQI (US)
32AQI (US)
46AQI (US)
47AQI (US)
52AQI (US)
48AQI (US)
43AQI (US)
42AQI (US)
41AQI (US)
45AQI (US)
52AQI (US)
44AQI (US)
44AQI (US)
47AQI (US)
39AQI (US)
48AQI (US)
44AQI (US)
45AQI (US)
38AQI (US)
37AQI (US)
40AQI (US)
36AQI (US)
47AQI (US)
43AQI (US)
20AQI (US)
41AQI (US)
39AQI (US)
41AQI (US)
38AQI (US)
45AQI (US)
33AQI (US)
36AQI (US)
18AQI (US)
36AQI (US)
35AQI (US)
35AQI (US)
38AQI (US)
30AQI (US)
33AQI (US)
31AQI (US)
36AQI (US)
37AQI (US)
30AQI (US)
17AQI (US)
46AQI (US)
37AQI (US)
32AQI (US)
42AQI (US)
34AQI (US)
37AQI (US)
35AQI (US)
40AQI (US)
41AQI (US)
35AQI (US)
36AQI (US)
35AQI (US)
35AQI (US)
35AQI (US)
32AQI (US)
33AQI (US)
40AQI (US)
37AQI (US)
36AQI (US)
27AQI (US)
35AQI (US)
34AQI (US)
24AQI (US)
27AQI (US)
30AQI (US)
26AQI (US)
21AQI (US)
16AQI (US)
27AQI (US)
34AQI (US)
26AQI (US)
28AQI (US)
27AQI (US)
22AQI (US)
24AQI (US)
24AQI (US)
24AQI (US)
23AQI (US)
24AQI (US)
19AQI (US)
34AQI (US)
35AQI (US)
34AQI (US)
29AQI (US)
30AQI (US)
30AQI (US)
24AQI (US)
18AQI (US)
16AQI (US)
23AQI (US)
20AQI (US)
19AQI (US)
15AQI (US)
15AQI (US)
18AQI (US)
26AQI (US)
22AQI (US)
13AQI (US)
14AQI (US)
26AQI (US)
24AQI (US)
16AQI (US)
13AQI (US)
19AQI (US)
25AQI (US)
23AQI (US)
20AQI (US)
16AQI (US)
22AQI (US)
45AQI (US)
51AQI (US)
58AQI (US)
47AQI (US)
45AQI (US)
46AQI (US)
38AQI (US)
45AQI (US)
41AQI (US)
41AQI (US)
39AQI (US)
27AQI (US)
19AQI (US)
21AQI (US)
17AQI (US)
18AQI (US)
20AQI (US)
25AQI (US)
21AQI (US)
15AQI (US)
23AQI (US)
25AQI (US)
25AQI (US)
24AQI (US)
25AQI (US)
26AQI (US)
27AQI (US)
27AQI (US)
27AQI (US)
21AQI (US)
20AQI (US)
16AQI (US)
12AQI (US)
25AQI (US)
20AQI (US)
12AQI (US)
13AQI (US)
16AQI (US)
16AQI (US)
14AQI (US)
15AQI (US)
16AQI (US)
28AQI (US)
29AQI (US)
27AQI (US)
25AQI (US)
27AQI (US)
21AQI (US)
24AQI (US)
28AQI (US)
25AQI (US)
22AQI (US)
17AQI (US)
15AQI (US)
27AQI (US)
17AQI (US)
28AQI (US)
30AQI (US)
29AQI (US)
25AQI (US)
16AQI (US)
16AQI (US)
14AQI (US)
45AQI (US)
38AQI (US)
43AQI (US)
35AQI (US)
54AQI (US)
63AQI (US)
51AQI (US)
58AQI (US)
86AQI (US)
97AQI (US)
92AQI (US)
70AQI (US)
42AQI (US)
74AQI (US)
33AQI (US)
37AQI (US)
33AQI (US)
25AQI (US)
29AQI (US)
21AQI (US)
40AQI (US)
No. of days
202631AQI (US)
Highest AQI (US) recorded in
July40AQI (US)
Lowest AQI (US) recorded in
June21AQI (US)
202530AQI (US)
Highest AQI (US) recorded in
January40AQI (US)
Lowest AQI (US) recorded in
May20AQI (US)
202425AQI (US)
Highest AQI (US) recorded in
January35AQI (US)
Lowest AQI (US) recorded in
June16AQI (US)
202326AQI (US)
Highest AQI (US) recorded in
November40AQI (US)
Lowest AQI (US) recorded in
July17AQI (US)
202229AQI (US)
Highest AQI (US) recorded in
November45AQI (US)
Lowest AQI (US) recorded in
July15AQI (US)
202125AQI (US)
Highest AQI (US) recorded in
January33AQI (US)
Lowest AQI (US) recorded in
June18AQI (US)
202029AQI (US)
Highest AQI (US) recorded in
September62AQI (US)
Lowest AQI (US) recorded in
June14AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Duncan's annual 2026 AQI (US) (31) shows an average percentage change of 14.05% (worsened AQI (US)) compared to previous years: 2020 (29), 2021 (25), 2022 (29), 2023 (26), 2024 (25), 2025 (30).