Hapcheon Eup, Sa Chon, Gyeongnam, 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
Hapcheon Eup, Sa Chon, Gyeongnam, South Korea
AQI Trends: Highest and Lowest
Same Day Analysis (21st September ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 30 of Good air quality, showing improvement over 2022 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 21st Sep - 22nd Sep 2025
Hapcheon Eup, Sa Chon, Gyeongnam, South Korea
6 AM21st Sep 2025
6 PM
5 AM22nd Sep 2025
32AQI
18AQI
33AQI
24AQI
In the last 24 hours,
Hapcheon Eup's AQI reached its highest point of 33 at 1 AM during the Night, while the lowest point, 18, was recorded at 3 PM during the Day between 21st Sep and 22nd Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Hapcheon Eup, Sa Chon, Gyeongnam, South Korea
27°C20/36°C
27°C21/35°C
27°C21/35°C
26°C21/32°C
25°C19/33°C
25°C19/32°C
26°C20/35°C
27°C20/36°C
25°C21/32°C
26°C20/33°C
26°C23/33°C
25°C21/32°C
24°C20/30°C
24°C19/31°C
25°C20/32°C
25°C23/29°C
24°C20/30°C
19°C17/22°C
22°C19/26°C
22°C18/27°C
21°C18/25°C
24°C18/30°C
23°C19/30°C
25°C21/31°C
25°C19/31°C
24°C20/31°C
21°C16/24°C
19°C16/23°C
20°C16/26°C
18°C13/24°C
--°C/°C
42AQI
35AQI
42AQI
40AQI
2025 Days Vs Air Quality
Hapcheon Eup, Sa Chon, Gyeongnam, South Korea
45%
120
53%
140
2%
4
Total number of days with different AQI categories in last 265 days in 2025 (100 days remaining)
Under WHO’s Safe Air Quality Limits: 45%
Health Risk Level:
Significant
In 2025, 45% of 265 days were within WHO’s safe air quality limits, and 55% exceeded them. The risk of health issues is Significant, especially for those with existing respiratory or heart conditions.
Annual Air Quality Insights
Hapcheon Eup, Sa Chon, Gyeongnam, South Korea
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
52AQI
62AQI
47AQI
49AQI
59AQI
76AQI
42AQI
53AQI
36AQI
45AQI
44AQI
59AQI
68AQI
80AQI
50AQI
62AQI
65AQI
72AQI
67AQI
90AQI
108AQI
111AQI
108AQI
85AQI
67AQI
52AQI
57AQI
40AQI
44AQI
50AQI
56AQI
52AQI
54AQI
49AQI
41AQI
41AQI
36AQI
42AQI
32AQI
38AQI
43AQI
55AQI
58AQI
41AQI
64AQI
50AQI
80AQI
46AQI
49AQI
39AQI
45AQI
39AQI
46AQI
45AQI
45AQI
45AQI
67AQI
58AQI
58AQI
64AQI
70AQI
46AQI
44AQI
33AQI
42AQI
53AQI
54AQI
63AQI
63AQI
70AQI
66AQI
61AQI
59AQI
41AQI
51AQI
56AQI
59AQI
73AQI
72AQI
73AQI
74AQI
80AQI
88AQI
113AQI
77AQI
91AQI
72AQI
52AQI
48AQI
60AQI
61AQI
60AQI
58AQI
60AQI
56AQI
54AQI
54AQI
62AQI
69AQI
70AQI
66AQI
63AQI
55AQI
52AQI
45AQI
55AQI
61AQI
71AQI
61AQI
61AQI
54AQI
42AQI
37AQI
57AQI
59AQI
50AQI
51AQI
48AQI
59AQI
56AQI
51AQI
43AQI
47AQI
42AQI
44AQI
47AQI
51AQI
56AQI
43AQI
34AQI
56AQI
56AQI
71AQI
69AQI
65AQI
56AQI
56AQI
54AQI
59AQI
57AQI
45AQI
59AQI
56AQI
44AQI
40AQI
57AQI
68AQI
75AQI
69AQI
59AQI
59AQI
70AQI
80AQI
66AQI
47AQI
49AQI
59AQI
59AQI
70AQI
67AQI
64AQI
49AQI
58AQI
62AQI
48AQI
56AQI
53AQI
59AQI
61AQI
61AQI
49AQI
46AQI
35AQI
43AQI
48AQI
42AQI
53AQI
58AQI
61AQI
54AQI
49AQI
50AQI
51AQI
58AQI
56AQI
52AQI
52AQI
59AQI
59AQI
56AQI
53AQI
53AQI
55AQI
57AQI
51AQI
46AQI
53AQI
47AQI
43AQI
38AQI
45AQI
44AQI
44AQI
52AQI
59AQI
53AQI
46AQI
45AQI
44AQI
49AQI
51AQI
53AQI
52AQI
57AQI
59AQI
52AQI
50AQI
48AQI
49AQI
49AQI
53AQI
44AQI
47AQI
40AQI
38AQI
37AQI
39AQI
39AQI
39AQI
48AQI
48AQI
48AQI
46AQI
49AQI
49AQI
49AQI
46AQI
41AQI
48AQI
49AQI
46AQI
44AQI
45AQI
37AQI
41AQI
46AQI
45AQI
38AQI
36AQI
37AQI
42AQI
36AQI
37AQI
39AQI
37AQI
34AQI
35AQI
40AQI
43AQI
32AQI
30AQI
32AQI
31AQI
30AQI
63AQI
49AQI
63AQI
57AQI
54AQI
56AQI
51AQI
47AQI
37AQI
No. of days
202554AQI
Highest AQI recorded in
March63AQI
Lowest AQI recorded in
September37AQI
202453AQI
Highest AQI recorded in
April73AQI
Lowest AQI recorded in
July39AQI
202364AQI
Highest AQI recorded in
March78AQI
Lowest AQI recorded in
September48AQI
202259AQI
Highest AQI recorded in
November68AQI
Lowest AQI recorded in
August22AQI
202156AQI
Highest AQI recorded in
March65AQI
Lowest AQI recorded in
September39AQI
202052AQI
Highest AQI recorded in
June59AQI
Lowest AQI recorded in
July43AQI
Most & Least Polluted Years Over the Last 6 Years
Hapcheon Eup's annual 2025 AQI (54) shows an average percentage change of -4.8% (improved AQI) compared to previous years: 2020 (52), 2021 (56), 2022 (59), 2023 (64), 2024 (53).