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!
March Air Quality Analysis
Yeosan myeon, Hosan, Chungnam, South Korea
AQI Trends: Highest and Lowest
Same Day Analysis (10th March):
On this day, AQI across the 4 years varied significantly: 2026 ranks 2nd highest AQI at 100 of Moderate air quality, showing improvement over 2023 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 9th Mar - 10th Mar 2026
Yeosan myeon, Hosan, Chungnam, South Korea
7 AM9th Mar 2026
6 PM
6 AM10th Mar 2026
114AQI
69AQI
122AQI
97AQI
In the last 24 hours,
Yeosan myeon's AQI reached its highest point of 122 at 12 AM during the Night, while the lowest point, 69, was recorded at 10 AM during the Day between 9th Mar and 10th Mar 2026.
Day & Night AQI Trend : Feb - Mar 2026
Yeosan myeon, Hosan, Chungnam, South Korea
-3°C-7/4°C
1°C-3/6°C
2°C-2/6°C
1°C-3/8°C
4°C-1/11°C
6°C1/12°C
6°C1/12°C
1°C-1/6°C
1°C-3/7°C
1°C-2/7°C
1°C-4/7°C
5°C-1/13°C
8°C1/16°C
7°C1/11°C
2°C-2/8°C
2°C0/4°C
4°C-3/11°C
5°C-1/12°C
8°C4/14°C
8°C2/15°C
8°C3/14°C
6°C4/6°C
7°C4/11°C
5°C1/11°C
7°C1/14°C
3°C-1/7°C
1°C-2/5°C
2°C-3/8°C
2°C-1/7°C
3°C-2/9°C
74AQI
57AQI
66AQI
57AQI
2026 Days Vs Air Quality
Yeosan myeon, Hosan, Chungnam, South Korea
48%
33
41%
28
12%
8
Total number of days with different AQI categories in last 70 days in 2026 (295 days remaining)
Under WHO’s Safe Air Quality Limits: 48%
Health Risk Level:
Significant
In 2026, 48% of 70 days were within WHO’s safe air quality limits, and 52% exceeded them. The risk of health issues is Significant, especially for those with existing respiratory or heart conditions.
Annual Air Quality Insights
Yeosan myeon, Hosan, Chungnam, South Korea
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
32AQI (US)
37AQI (US)
51AQI (US)
97AQI (US)
62AQI (US)
46AQI (US)
61AQI (US)
25AQI (US)
37AQI (US)
56AQI (US)
26AQI (US)
39AQI (US)
50AQI (US)
37AQI (US)
87AQI (US)
126AQI (US)
116AQI (US)
107AQI (US)
75AQI (US)
30AQI (US)
29AQI (US)
38AQI (US)
58AQI (US)
59AQI (US)
30AQI (US)
43AQI (US)
53AQI (US)
40AQI (US)
48AQI (US)
31AQI (US)
60AQI (US)
81AQI (US)
62AQI (US)
58AQI (US)
98AQI (US)
109AQI (US)
63AQI (US)
37AQI (US)
35AQI (US)
38AQI (US)
71AQI (US)
99AQI (US)
124AQI (US)
119AQI (US)
132AQI (US)
108AQI (US)
45AQI (US)
48AQI (US)
46AQI (US)
34AQI (US)
68AQI (US)
87AQI (US)
52AQI (US)
28AQI (US)
34AQI (US)
34AQI (US)
38AQI (US)
31AQI (US)
50AQI (US)
52AQI (US)
15AQI (US)
32AQI (US)
52AQI (US)
72AQI (US)
61AQI (US)
52AQI (US)
50AQI (US)
87AQI (US)
100AQI (US)
54AQI (US)
65AQI (US)
57AQI (US)
No. of days
202659AQI (US)
Highest AQI (US) recorded in
February65AQI (US)
Lowest AQI (US) recorded in
January54AQI (US)
202560AQI (US)
Highest AQI (US) recorded in
March76AQI (US)
Lowest AQI (US) recorded in
September40AQI (US)
202457AQI (US)
Highest AQI (US) recorded in
April67AQI (US)
Lowest AQI (US) recorded in
July37AQI (US)
202366AQI (US)
Highest AQI (US) recorded in
February96AQI (US)
Lowest AQI (US) recorded in
July46AQI (US)
202273AQI (US)
Highest AQI (US) recorded in
November87AQI (US)
Lowest AQI (US) recorded in
September56AQI (US)
Most & Least Polluted Years Over the Last 5 Years
Yeosan myeon's annual 2026 AQI (US) (59) shows an average percentage change of -6.4% (improved AQI (US)) compared to previous years: 2022 (73), 2023 (66), 2024 (57), 2025 (60).