Port Alberni, British Columbia, Canada Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
August Air Quality Analysis
Port Alberni, British Columbia, Canada
AQI Trends: Highest and Lowest
Same Day Analysis (1st August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 25 of Good air quality, showing improvement over 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 1st Aug - 2nd Aug 2025
Port Alberni, British Columbia, Canada
5 AM1st Aug 2025
9 PM
4 AM2nd Aug 2025
26AQI
22AQI
30AQI
25AQI
In the last 24 hours,
Port Alberni's AQI reached its highest point of 30 at 4 AM during the Night, while the lowest point, 22, was recorded at 12 PM during the Day between 1st Aug and 2nd Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Port Alberni, British Columbia, Canada
13°C9/17°C
15°C11/21°C
12°C8/18°C
17°C10/21°C
19°C14/25°C
13°C11/14°C
14°C11/18°C
14°C9/20°C
17°C12/23°C
19°C14/25°C
22°C17/29°C
19°C14/25°C
22°C15/28°C
22°C17/27°C
20°C15/26°C
15°C12/20°C
13°C10/16°C
15°C11/20°C
17°C12/23°C
16°C12/21°C
17°C12/22°C
14°C12/18°C
12°C10/14°C
14°C11/18°C
14°C11/18°C
16°C10/21°C
20°C14/26°C
21°C17/27°C
20°C14/26°C
17°C13/22°C
--°C/°C
25AQI
25AQI
25AQI
25AQI
2025 Days Vs Air Quality
Port Alberni, British Columbia, Canada
97%
206
3%
7
Total number of days with different AQI categories in last 214 days in 2025 (151 days remaining)
Under WHO’s Safe Air Quality Limits: 97%
Health Risk Level:
Very Low
In 2025, 97% of 214 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
Port Alberni, British Columbia, Canada
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
46AQI
42AQI
35AQI
37AQI
34AQI
33AQI
29AQI
43AQI
34AQI
36AQI
31AQI
36AQI
31AQI
38AQI
45AQI
38AQI
34AQI
36AQI
41AQI
41AQI
48AQI
42AQI
47AQI
35AQI
43AQI
58AQI
60AQI
57AQI
60AQI
60AQI
41AQI
31AQI
36AQI
31AQI
25AQI
36AQI
39AQI
40AQI
54AQI
48AQI
45AQI
34AQI
50AQI
41AQI
54AQI
40AQI
38AQI
43AQI
39AQI
23AQI
22AQI
24AQI
23AQI
19AQI
24AQI
19AQI
25AQI
33AQI
26AQI
34AQI
37AQI
24AQI
23AQI
24AQI
27AQI
34AQI
21AQI
35AQI
35AQI
38AQI
26AQI
29AQI
32AQI
23AQI
22AQI
26AQI
25AQI
21AQI
19AQI
20AQI
19AQI
19AQI
23AQI
21AQI
23AQI
21AQI
22AQI
18AQI
26AQI
23AQI
26AQI
31AQI
33AQI
27AQI
37AQI
29AQI
16AQI
16AQI
15AQI
22AQI
20AQI
27AQI
30AQI
31AQI
20AQI
26AQI
21AQI
25AQI
22AQI
21AQI
18AQI
20AQI
25AQI
28AQI
32AQI
35AQI
33AQI
21AQI
17AQI
19AQI
26AQI
30AQI
18AQI
21AQI
18AQI
24AQI
22AQI
22AQI
24AQI
22AQI
19AQI
22AQI
24AQI
22AQI
25AQI
16AQI
16AQI
20AQI
17AQI
13AQI
18AQI
16AQI
16AQI
18AQI
20AQI
19AQI
17AQI
22AQI
18AQI
22AQI
18AQI
18AQI
19AQI
18AQI
19AQI
18AQI
16AQI
23AQI
21AQI
22AQI
27AQI
33AQI
37AQI
29AQI
23AQI
23AQI
18AQI
18AQI
17AQI
17AQI
22AQI
19AQI
19AQI
22AQI
26AQI
27AQI
16AQI
15AQI
14AQI
21AQI
22AQI
22AQI
17AQI
20AQI
20AQI
21AQI
23AQI
22AQI
20AQI
16AQI
19AQI
20AQI
20AQI
18AQI
17AQI
25AQI
33AQI
32AQI
37AQI
30AQI
28AQI
27AQI
27AQI
27AQI
28AQI
23AQI
26AQI
28AQI
30AQI
31AQI
32AQI
28AQI
25AQI
42AQI
34AQI
25AQI
25AQI
20AQI
21AQI
25AQI
25AQI
No. of days
202527AQI
Highest AQI recorded in
January42AQI
Lowest AQI recorded in
May20AQI
202423AQI
Highest AQI recorded in
January40AQI
Lowest AQI recorded in
June11AQI
202325AQI
Highest AQI recorded in
January43AQI
Lowest AQI recorded in
July15AQI
202230AQI
Highest AQI recorded in
November54AQI
Lowest AQI recorded in
July13AQI
202128AQI
Highest AQI recorded in
December41AQI
Lowest AQI recorded in
May19AQI
202030AQI
Highest AQI recorded in
September55AQI
Lowest AQI recorded in
June17AQI
Most & Least Polluted Years Over the Last 6 Years
Port Alberni's annual 2025 AQI (27) shows an average percentage change of 0.7% (worsened AQI) compared to previous years: 2020 (30), 2021 (28), 2022 (30), 2023 (25), 2024 (23).