Muan, Jeonnam, 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
Muan, Jeonnam, South Korea
AQI Trends: Highest and Lowest
Same Day Analysis (20th September ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 4th highest AQI at 35 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: 20th Sep - 21st Sep 2025
Muan, Jeonnam, South Korea
6 AM20th Sep 2025
6 PM
5 AM21st Sep 2025
41AQI
18AQI
43AQI
28AQI
In the last 24 hours,
Muan's AQI reached its highest point of 43 at 3 AM during the Night, while the lowest point, 18, was recorded at 3 PM during the Day between 20th Sep and 21st Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Muan, Jeonnam, South Korea
27°C24/30°C
27°C24/31°C
27°C24/31°C
27°C24/31°C
27°C25/30°C
26°C24/30°C
26°C23/30°C
27°C24/30°C
27°C24/31°C
27°C24/31°C
27°C24/30°C
25°C23/29°C
26°C22/30°C
26°C23/31°C
27°C24/30°C
27°C24/30°C
26°C24/28°C
25°C23/28°C
22°C20/26°C
24°C21/28°C
25°C21/29°C
24°C22/27°C
25°C23/27°C
24°C22/27°C
24°C22/27°C
25°C23/29°C
25°C22/27°C
23°C21/25°C
22°C20/26°C
22°C20/24°C
--°C/°C
46AQI
41AQI
46AQI
43AQI
2025 Days Vs Air Quality
Muan, Jeonnam, South Korea
41%
108
58%
153
0.7%
2
Total number of days with different AQI categories in last 264 days in 2025 (101 days remaining)
Under WHO’s Safe Air Quality Limits: 41%
Health Risk Level:
Significant
In 2025, 41% of 264 days were within WHO’s safe air quality limits, and 59% exceeded them. The risk of health issues is Significant, especially for those with existing respiratory or heart conditions.
Annual Air Quality Insights
Muan, Jeonnam, South Korea
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
57AQI
52AQI
49AQI
50AQI
61AQI
70AQI
44AQI
50AQI
37AQI
47AQI
46AQI
59AQI
63AQI
89AQI
47AQI
62AQI
54AQI
70AQI
62AQI
85AQI
96AQI
88AQI
84AQI
78AQI
77AQI
51AQI
68AQI
47AQI
52AQI
49AQI
53AQI
55AQI
78AQI
49AQI
48AQI
44AQI
46AQI
42AQI
40AQI
40AQI
51AQI
57AQI
52AQI
47AQI
58AQI
53AQI
92AQI
52AQI
55AQI
43AQI
47AQI
44AQI
53AQI
47AQI
49AQI
47AQI
78AQI
58AQI
59AQI
57AQI
49AQI
43AQI
39AQI
33AQI
62AQI
66AQI
64AQI
86AQI
75AQI
81AQI
73AQI
68AQI
71AQI
54AQI
66AQI
60AQI
76AQI
73AQI
78AQI
90AQI
97AQI
104AQI
99AQI
116AQI
89AQI
82AQI
63AQI
49AQI
46AQI
59AQI
67AQI
70AQI
73AQI
74AQI
65AQI
67AQI
67AQI
78AQI
70AQI
77AQI
76AQI
65AQI
62AQI
52AQI
53AQI
62AQI
65AQI
66AQI
47AQI
57AQI
53AQI
35AQI
52AQI
56AQI
51AQI
51AQI
48AQI
52AQI
61AQI
58AQI
56AQI
52AQI
52AQI
46AQI
49AQI
51AQI
51AQI
55AQI
38AQI
52AQI
63AQI
69AQI
70AQI
67AQI
50AQI
40AQI
43AQI
56AQI
55AQI
37AQI
36AQI
39AQI
56AQI
57AQI
48AQI
60AQI
60AQI
68AQI
73AQI
72AQI
74AQI
78AQI
77AQI
65AQI
62AQI
53AQI
57AQI
61AQI
57AQI
58AQI
51AQI
55AQI
60AQI
57AQI
53AQI
54AQI
58AQI
59AQI
62AQI
55AQI
44AQI
40AQI
32AQI
46AQI
48AQI
52AQI
63AQI
57AQI
51AQI
43AQI
42AQI
41AQI
53AQI
55AQI
50AQI
46AQI
44AQI
45AQI
61AQI
59AQI
60AQI
59AQI
56AQI
58AQI
54AQI
47AQI
56AQI
50AQI
43AQI
39AQI
47AQI
39AQI
44AQI
48AQI
58AQI
61AQI
52AQI
44AQI
47AQI
52AQI
53AQI
55AQI
57AQI
60AQI
56AQI
55AQI
52AQI
54AQI
52AQI
47AQI
47AQI
48AQI
49AQI
47AQI
44AQI
42AQI
42AQI
39AQI
44AQI
51AQI
50AQI
49AQI
49AQI
49AQI
49AQI
48AQI
45AQI
45AQI
49AQI
49AQI
44AQI
45AQI
47AQI
39AQI
45AQI
49AQI
45AQI
42AQI
40AQI
43AQI
46AQI
42AQI
46AQI
46AQI
42AQI
41AQI
41AQI
42AQI
37AQI
37AQI
45AQI
37AQI
35AQI
61AQI
53AQI
70AQI
61AQI
55AQI
55AQI
51AQI
49AQI
42AQI
No. of days
202556AQI
Highest AQI recorded in
March70AQI
Lowest AQI recorded in
September42AQI
202451AQI
Highest AQI recorded in
April63AQI
Lowest AQI recorded in
July33AQI
202360AQI
Highest AQI recorded in
February80AQI
Lowest AQI recorded in
July43AQI
202263AQI
Highest AQI recorded in
February83AQI
Lowest AQI recorded in
August44AQI
202166AQI
Highest AQI recorded in
March100AQI
Lowest AQI recorded in
September45AQI
202059AQI
Highest AQI recorded in
December68AQI
Lowest AQI recorded in
July41AQI
Most & Least Polluted Years Over the Last 6 Years
Muan's annual 2025 AQI (56) shows an average percentage change of -6.2% (improved AQI) compared to previous years: 2020 (59), 2021 (66), 2022 (63), 2023 (60), 2024 (51).