Yeosan myeon, Hosan, Chungnam, South Korea 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
Yeosan myeon, Hosan, Chungnam, South Korea
AQI Trends: Highest and Lowest
Same Day Analysis (10th August ):
On this day, AQI across the 3 years varied significantly: 2025 ranks 2nd highest AQI at 52 of Moderate air quality, showing improvement over 2024 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 10th Aug - 11th Aug 2025
Yeosan myeon, Hosan, Chungnam, South Korea
5 AM10th Aug 2025
7 PM
4 AM11th Aug 2025
56AQI
45AQI
54AQI
48AQI
In the last 24 hours,
Yeosan myeon's AQI reached its highest point of 56 at 10 AM during the Day, while the lowest point, 45, was recorded at 3 PM during the Day between 10th Aug and 11th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Yeosan myeon, Hosan, Chungnam, South Korea
27°C20/34°C
23°C19/26°C
23°C20/28°C
22°C19/26°C
21°C20/25°C
24°C21/27°C
25°C22/29°C
25°C22/29°C
27°C22/33°C
27°C23/31°C
27°C23/31°C
27°C23/32°C
28°C23/34°C
29°C24/35°C
29°C24/35°C
29°C24/36°C
29°C24/35°C
29°C24/35°C
29°C23/35°C
28°C23/34°C
28°C23/34°C
28°C24/34°C
25°C23/28°C
27°C23/30°C
26°C23/32°C
26°C24/30°C
25°C21/30°C
24°C20/29°C
22°C20/25°C
25°C21/29°C
--°C/°C
54AQI
50AQI
53AQI
50AQI
2025 Days Vs Air Quality
Yeosan myeon, Hosan, Chungnam, South Korea
26%
58
69%
154
5%
10
Total number of days with different AQI categories in last 223 days in 2025 (142 days remaining)
Under WHO’s Safe Air Quality Limits: 26%
Health Risk Level:
Very high
In 2025, 26% of 223 days were within WHO’s safe air quality limits. The risk of health issues is Very high, including respiratory issues, heart disease, and stress, particularly affecting vulnerable groups.
Annual Air Quality Insights
Yeosan myeon, Hosan, Chungnam, South Korea
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
66AQI
65AQI
54AQI
58AQI
60AQI
77AQI
55AQI
63AQI
40AQI
50AQI
50AQI
59AQI
70AQI
88AQI
57AQI
63AQI
79AQI
82AQI
87AQI
110AQI
136AQI
142AQI
117AQI
102AQI
74AQI
58AQI
63AQI
45AQI
48AQI
59AQI
69AQI
80AQI
87AQI
57AQI
46AQI
45AQI
46AQI
46AQI
39AQI
47AQI
57AQI
64AQI
59AQI
44AQI
70AQI
55AQI
101AQI
48AQI
54AQI
43AQI
45AQI
47AQI
54AQI
46AQI
49AQI
49AQI
71AQI
69AQI
65AQI
87AQI
71AQI
51AQI
44AQI
34AQI
63AQI
78AQI
76AQI
88AQI
88AQI
86AQI
84AQI
78AQI
75AQI
46AQI
63AQI
62AQI
73AQI
80AQI
90AQI
97AQI
104AQI
115AQI
105AQI
130AQI
91AQI
81AQI
58AQI
49AQI
48AQI
62AQI
74AQI
78AQI
83AQI
82AQI
67AQI
63AQI
65AQI
73AQI
68AQI
76AQI
84AQI
62AQI
59AQI
42AQI
57AQI
61AQI
66AQI
79AQI
52AQI
65AQI
60AQI
39AQI
54AQI
59AQI
61AQI
49AQI
41AQI
57AQI
64AQI
60AQI
55AQI
50AQI
49AQI
48AQI
47AQI
50AQI
52AQI
62AQI
46AQI
53AQI
65AQI
66AQI
71AQI
71AQI
54AQI
48AQI
50AQI
59AQI
59AQI
44AQI
44AQI
56AQI
58AQI
49AQI
43AQI
64AQI
74AQI
76AQI
81AQI
83AQI
87AQI
91AQI
96AQI
84AQI
67AQI
59AQI
63AQI
66AQI
64AQI
63AQI
60AQI
57AQI
60AQI
65AQI
48AQI
62AQI
64AQI
65AQI
66AQI
66AQI
54AQI
50AQI
42AQI
49AQI
51AQI
46AQI
59AQI
61AQI
59AQI
52AQI
50AQI
48AQI
50AQI
57AQI
55AQI
51AQI
53AQI
57AQI
62AQI
54AQI
53AQI
54AQI
53AQI
61AQI
59AQI
49AQI
55AQI
47AQI
47AQI
42AQI
48AQI
44AQI
42AQI
47AQI
52AQI
55AQI
49AQI
45AQI
54AQI
57AQI
54AQI
55AQI
56AQI
61AQI
62AQI
52AQI
51AQI
51AQI
51AQI
52AQI
55AQI
52AQI
72AQI
57AQI
76AQI
63AQI
59AQI
61AQI
52AQI
54AQI
No. of days
202563AQI
Highest AQI recorded in
March76AQI
Lowest AQI recorded in
July52AQI
202457AQI
Highest AQI recorded in
April67AQI
Lowest AQI recorded in
July37AQI
202366AQI
Highest AQI recorded in
February96AQI
Lowest AQI recorded in
July46AQI
202273AQI
Highest AQI recorded in
November87AQI
Lowest AQI recorded in
September56AQI
Most & Least Polluted Years Over the Last 4 Years
Yeosan myeon's annual 2025 AQI (63) shows an average percentage change of -3.1% (improved AQI) compared to previous years: 2022 (73), 2023 (66), 2024 (57).