9 Avenue, Castlegar, British Columbia, Canada Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
October Air Quality Analysis
9 Avenue, Castlegar, British Columbia, Canada
AQI Trends: Highest and Lowest
Same Day Analysis (3rd October ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 35 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 3rd Oct - 4th Oct 2025
9 Avenue, Castlegar, British Columbia, Canada
6 AM3rd Oct 2025
6 PM
5 AM4th Oct 2025
54AQI
27AQI
84AQI
26AQI
In the last 24 hours,
9 Avenue's AQI reached its highest point of 84 at 9 PM during the Night, while the lowest point, 26, was recorded at 4 AM during the Night between 3rd Oct and 4th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
9 Avenue, Castlegar, British Columbia, Canada
20°C10/32°C
19°C7/31°C
24°C18/32°C
22°C15/29°C
20°C11/28°C
17°C7/27°C
17°C6/30°C
18°C7/30°C
17°C7/28°C
18°C7/27°C
17°C7/24°C
12°C5/21°C
15°C6/27°C
17°C7/29°C
17°C7/29°C
17°C7/29°C
17°C6/28°C
16°C3/23°C
14°C7/22°C
17°C7/27°C
19°C9/29°C
18°C9/28°C
17°C11/24°C
16°C12/26°C
17°C8/27°C
17°C11/27°C
15°C11/21°C
14°C10/20°C
14°C9/21°C
13°C6/23°C
--°C/°C
62AQI
58AQI
66AQI
57AQI
2025 Days Vs Air Quality
9 Avenue, Castlegar, British Columbia, Canada
85%
164
13%
25
2%
3
Total number of days with different AQI categories in last 277 days in 2025 (88 days remaining)
Under WHO’s Safe Air Quality Limits: 85%
Health Risk Level:
Low
In 2025, 85% of 277 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
9 Avenue, Castlegar, British Columbia, Canada
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
18AQI
17AQI
18AQI
18AQI
27AQI
25AQI
17AQI
22AQI
23AQI
27AQI
32AQI
37AQI
30AQI
14AQI
12AQI
17AQI
25AQI
18AQI
16AQI
26AQI
22AQI
26AQI
18AQI
30AQI
25AQI
18AQI
15AQI
16AQI
22AQI
29AQI
37AQI
41AQI
39AQI
27AQI
20AQI
17AQI
21AQI
26AQI
39AQI
15AQI
17AQI
20AQI
27AQI
22AQI
23AQI
24AQI
23AQI
17AQI
16AQI
20AQI
20AQI
21AQI
17AQI
14AQI
14AQI
13AQI
13AQI
18AQI
24AQI
27AQI
33AQI
27AQI
16AQI
15AQI
17AQI
15AQI
16AQI
14AQI
13AQI
19AQI
23AQI
28AQI
27AQI
20AQI
22AQI
36AQI
33AQI
42AQI
41AQI
30AQI
23AQI
22AQI
25AQI
37AQI
31AQI
19AQI
25AQI
25AQI
24AQI
32AQI
45AQI
46AQI
29AQI
20AQI
12AQI
17AQI
27AQI
33AQI
35AQI
24AQI
20AQI
27AQI
27AQI
26AQI
26AQI
37AQI
19AQI
19AQI
41AQI
21AQI
26AQI
18AQI
26AQI
30AQI
28AQI
37AQI
27AQI
27AQI
33AQI
31AQI
35AQI
29AQI
19AQI
24AQI
25AQI
28AQI
29AQI
34AQI
46AQI
46AQI
41AQI
42AQI
34AQI
41AQI
26AQI
17AQI
23AQI
30AQI
24AQI
23AQI
34AQI
31AQI
34AQI
26AQI
15AQI
21AQI
23AQI
30AQI
20AQI
28AQI
41AQI
46AQI
49AQI
51AQI
55AQI
57AQI
59AQI
52AQI
58AQI
59AQI
67AQI
72AQI
73AQI
115AQI
145AQI
129AQI
89AQI
71AQI
64AQI
61AQI
69AQI
83AQI
73AQI
50AQI
42AQI
51AQI
48AQI
55AQI
59AQI
60AQI
26AQI
36AQI
48AQI
59AQI
31AQI
54AQI
88AQI
66AQI
49AQI
25AQI
27AQI
35AQI
21AQI
24AQI
20AQI
27AQI
28AQI
36AQI
66AQI
29AQI
No. of days
202533AQI
Highest AQI recorded in
September66AQI
Lowest AQI recorded in
May20AQI
Most & Least Polluted Years Over the Last 1 Years
9 Avenue's annual 2025 AQI (33) shows an average percentage change of NaN% (improved AQI) compared to previous years: .