Keelung, Keelung, Taiwan Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
March Air Quality Analysis
Keelung, Keelung, Taiwan
AQI Trends: Highest and Lowest
Same Day Analysis (8th March):
On this day, AQI across the 5 years varied significantly: 2026 ranks the most lowest AQI at 42 of Good air quality, showing improvement over 2025, 2024, 2023 and 2022 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 7th Mar - 8th Mar 2026
Keelung, Keelung, Taiwan
6 AM7th Mar 2026
5 PM
5 AM8th Mar 2026
80AQI
60AQI
59AQI
32AQI
In the last 24 hours,
Keelung's AQI reached its highest point of 80 at 7 AM during the Day, while the lowest point, 32, was recorded at 4 AM during the Night between 7th Mar and 8th Mar 2026.
Day & Night AQI Trend : Feb - Mar 2026
Keelung, Keelung, Taiwan
14°C12/15°C
10°C9/11°C
13°C10/15°C
16°C13/19°C
16°C14/17°C
16°C15/17°C
19°C15/23°C
20°C17/23°C
21°C18/24°C
19°C17/23°C
15°C15/15°C
15°C14/15°C
17°C15/18°C
17°C17/18°C
19°C17/22°C
20°C17/23°C
21°C20/22°C
21°C19/23°C
18°C18/18°C
20°C19/22°C
19°C18/19°C
19°C17/20°C
20°C19/22°C
21°C19/24°C
16°C15/16°C
17°C16/18°C
20°C18/22°C
17°C16/18°C
15°C15/16°C
17°C15/17°C
54AQI
45AQI
55AQI
43AQI
2026 Days Vs Air Quality
Keelung, Keelung, Taiwan
54%
36
46%
31
Total number of days with different AQI categories in last 68 days in 2026 (297 days remaining)
Under WHO’s Safe Air Quality Limits: 54%
Health Risk Level:
Considerable
In 2026, 54% of 68 days were within WHO’s safe air quality limits, and 46% exceeded them. The risk of health issues is Considerable, with potential for conditions in sensitive individuals.
Annual Air Quality Insights
Keelung, Keelung, Taiwan
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
30AQI (US)
44AQI (US)
39AQI (US)
30AQI (US)
50AQI (US)
87AQI (US)
79AQI (US)
66AQI (US)
65AQI (US)
48AQI (US)
67AQI (US)
50AQI (US)
62AQI (US)
57AQI (US)
62AQI (US)
62AQI (US)
69AQI (US)
56AQI (US)
53AQI (US)
32AQI (US)
22AQI (US)
28AQI (US)
47AQI (US)
40AQI (US)
54AQI (US)
66AQI (US)
44AQI (US)
39AQI (US)
47AQI (US)
40AQI (US)
30AQI (US)
22AQI (US)
57AQI (US)
66AQI (US)
42AQI (US)
46AQI (US)
58AQI (US)
35AQI (US)
72AQI (US)
31AQI (US)
45AQI (US)
64AQI (US)
65AQI (US)
54AQI (US)
68AQI (US)
56AQI (US)
72AQI (US)
36AQI (US)
50AQI (US)
69AQI (US)
67AQI (US)
68AQI (US)
76AQI (US)
43AQI (US)
59AQI (US)
35AQI (US)
31AQI (US)
34AQI (US)
21AQI (US)
29AQI (US)
36AQI (US)
29AQI (US)
36AQI (US)
52AQI (US)
49AQI (US)
65AQI (US)
42AQI (US)
50AQI (US)
52AQI (US)
42AQI (US)
No. of days
202650AQI (US)
Highest AQI (US) recorded in
February52AQI (US)
Lowest AQI (US) recorded in
March42AQI (US)
202550AQI (US)
Highest AQI (US) recorded in
January61AQI (US)
Lowest AQI (US) recorded in
September36AQI (US)
202445AQI (US)
Highest AQI (US) recorded in
March61AQI (US)
Lowest AQI (US) recorded in
September29AQI (US)
202349AQI (US)
Highest AQI (US) recorded in
April62AQI (US)
Lowest AQI (US) recorded in
September37AQI (US)
202246AQI (US)
Highest AQI (US) recorded in
April56AQI (US)
Lowest AQI (US) recorded in
May37AQI (US)
202147AQI (US)
Highest AQI (US) recorded in
February62AQI (US)
Lowest AQI (US) recorded in
June35AQI (US)
202048AQI (US)
Highest AQI (US) recorded in
April60AQI (US)
Lowest AQI (US) recorded in
August37AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Keelung's annual 2026 AQI (US) (50) shows an average percentage change of 5.2% (worsened AQI (US)) compared to previous years: 2020 (48), 2021 (47), 2022 (46), 2023 (49), 2024 (45), 2025 (50).