Gyeongsan, Gyeongbuk, South Korea Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
September Air Quality Analysis
Gyeongsan, Gyeongbuk, South Korea
AQI Trends: Highest and Lowest
Same Day Analysis (21st September ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 4th highest AQI at 28 of Good air quality, showing improvement over 2023, 2022 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 22nd Sep - 23rd Sep 2025
Gyeongsan, Gyeongbuk, South Korea
6 AM22nd Sep 2025
6 PM
5 AM23rd Sep 2025
AQI
AQI
31AQI
20AQI
In the last 24 hours,
Gyeongsan's AQI reached its highest point of 31 at 6 AM during the Night, while the lowest point, undefined, was recorded at 5 AM during the Night between 22nd Sep and 23rd Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Gyeongsan, Gyeongbuk, South Korea
28°C23/35°C
28°C22/36°C
26°C21/33°C
25°C20/33°C
25°C19/33°C
27°C21/34°C
28°C21/36°C
26°C21/32°C
27°C22/33°C
26°C21/32°C
24°C19/30°C
24°C19/30°C
25°C20/32°C
26°C20/33°C
25°C22/30°C
23°C18/31°C
19°C16/22°C
20°C17/26°C
21°C16/27°C
21°C18/25°C
22°C17/28°C
22°C18/28°C
24°C19/31°C
24°C19/32°C
24°C21/30°C
19°C15/22°C
18°C15/21°C
18°C15/24°C
18°C13/23°C
--°C/°C
--°C/°C
45AQI
39AQI
45AQI
40AQI
2025 Days Vs Air Quality
Gyeongsan, Gyeongbuk, South Korea
36%
94
63%
165
2%
5
Total number of days with different AQI categories in last 265 days in 2025 (100 days remaining)
Under WHO’s Safe Air Quality Limits: 36%
Health Risk Level:
High
In 2025, 36% of 265 days were within WHO’s safe air quality limits. The risk of health issues is High, with respiratory problems, heart disease, skin issues, and stress being more common, particularly among children and the elderly.
Annual Air Quality Insights
Gyeongsan, Gyeongbuk, South Korea
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
60AQI
65AQI
50AQI
49AQI
66AQI
91AQI
56AQI
61AQI
41AQI
48AQI
54AQI
67AQI
79AQI
87AQI
55AQI
64AQI
77AQI
79AQI
75AQI
108AQI
124AQI
136AQI
112AQI
94AQI
66AQI
55AQI
61AQI
44AQI
52AQI
56AQI
69AQI
68AQI
68AQI
58AQI
47AQI
44AQI
43AQI
50AQI
41AQI
45AQI
51AQI
67AQI
75AQI
48AQI
73AQI
55AQI
87AQI
46AQI
53AQI
44AQI
49AQI
47AQI
52AQI
53AQI
52AQI
51AQI
76AQI
70AQI
64AQI
81AQI
82AQI
51AQI
48AQI
40AQI
40AQI
51AQI
54AQI
71AQI
71AQI
83AQI
75AQI
64AQI
57AQI
46AQI
53AQI
58AQI
60AQI
77AQI
72AQI
76AQI
72AQI
82AQI
86AQI
112AQI
83AQI
87AQI
79AQI
57AQI
50AQI
64AQI
64AQI
56AQI
58AQI
65AQI
59AQI
60AQI
56AQI
68AQI
72AQI
76AQI
69AQI
66AQI
58AQI
53AQI
47AQI
61AQI
60AQI
76AQI
55AQI
54AQI
54AQI
52AQI
39AQI
61AQI
60AQI
54AQI
51AQI
56AQI
58AQI
65AQI
52AQI
49AQI
50AQI
46AQI
49AQI
49AQI
53AQI
59AQI
45AQI
34AQI
54AQI
58AQI
71AQI
71AQI
63AQI
58AQI
52AQI
56AQI
59AQI
59AQI
51AQI
58AQI
59AQI
42AQI
45AQI
57AQI
63AQI
76AQI
65AQI
55AQI
54AQI
63AQI
79AQI
68AQI
50AQI
47AQI
62AQI
62AQI
69AQI
66AQI
64AQI
51AQI
61AQI
64AQI
49AQI
57AQI
51AQI
59AQI
63AQI
65AQI
48AQI
43AQI
33AQI
45AQI
47AQI
46AQI
52AQI
57AQI
64AQI
58AQI
50AQI
51AQI
47AQI
54AQI
57AQI
54AQI
53AQI
60AQI
60AQI
52AQI
51AQI
51AQI
52AQI
54AQI
51AQI
46AQI
54AQI
49AQI
44AQI
36AQI
44AQI
42AQI
44AQI
53AQI
60AQI
49AQI
46AQI
42AQI
44AQI
50AQI
52AQI
53AQI
54AQI
60AQI
62AQI
54AQI
51AQI
49AQI
48AQI
53AQI
59AQI
48AQI
52AQI
43AQI
41AQI
41AQI
43AQI
43AQI
42AQI
50AQI
49AQI
47AQI
48AQI
52AQI
50AQI
54AQI
52AQI
45AQI
48AQI
51AQI
48AQI
48AQI
51AQI
40AQI
45AQI
46AQI
38AQI
34AQI
39AQI
38AQI
46AQI
43AQI
43AQI
43AQI
40AQI
36AQI
40AQI
46AQI
47AQI
38AQI
32AQI
31AQI
29AQI
28AQI
71AQI
56AQI
67AQI
59AQI
55AQI
56AQI
50AQI
50AQI
39AQI
No. of days
202557AQI
Highest AQI recorded in
January71AQI
Lowest AQI recorded in
September39AQI
202455AQI
Highest AQI recorded in
April73AQI
Lowest AQI recorded in
July38AQI
202363AQI
Highest AQI recorded in
February82AQI
Lowest AQI recorded in
September44AQI
202261AQI
Highest AQI recorded in
November76AQI
Lowest AQI recorded in
August28AQI
202162AQI
Highest AQI recorded in
February76AQI
Lowest AQI recorded in
September38AQI
202062AQI
Highest AQI recorded in
December79AQI
Lowest AQI recorded in
July48AQI
Most & Least Polluted Years Over the Last 6 Years
Gyeongsan's annual 2025 AQI (57) shows an average percentage change of -6.3% (improved AQI) compared to previous years: 2020 (62), 2021 (62), 2022 (61), 2023 (63), 2024 (55).