Sosan, 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
Sosan, Chungnam, South Korea
AQI Trends: Highest and Lowest
Same Day Analysis (12th March):
On this day, AQI across the 5 years varied significantly: 2026 ranks 3rd highest AQI at 88 of Moderate air quality, showing improvement over 2025 and 2022 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 11th Mar - 12th Mar 2026
Sosan, Chungnam, South Korea
7 AM11th Mar 2026
6 PM
6 AM12th Mar 2026
80AQI
58AQI
61AQI
49AQI
In the last 24 hours,
Sosan's AQI reached its highest point of 80 at 11 AM during the Day, while the lowest point, 49, was recorded at 2 AM during the Night between 11th Mar and 12th Mar 2026.
Day & Night AQI Trend : Feb - Mar 2026
Sosan, Chungnam, South Korea
2°C1/4°C
3°C1/5°C
5°C3/7°C
5°C3/8°C
4°C1/7°C
1°C-1/2°C
2°C0/4°C
3°C0/4°C
2°C0/4°C
5°C2/8°C
7°C5/9°C
6°C2/7°C
1°C1/2°C
2°C1/5°C
5°C0/9°C
6°C3/9°C
7°C4/10°C
7°C4/11°C
7°C5/11°C
5°C3/6°C
5°C3/8°C
4°C2/6°C
4°C1/7°C
2°C1/4°C
1°C0/2°C
2°C0/4°C
3°C2/5°C
3°C2/6°C
4°C1/7°C
5°C3/9°C
70AQI
59AQI
61AQI
55AQI
2026 Days Vs Air Quality
Sosan, Chungnam, South Korea
52%
37
45%
32
3%
2
Total number of days with different AQI categories in last 72 days in 2026 (293 days remaining)
Under WHO’s Safe Air Quality Limits: 52%
Health Risk Level:
Considerable
In 2026, 52% of 72 days were within WHO’s safe air quality limits, and 48% exceeded them. The risk of health issues is Considerable, with potential for conditions in sensitive individuals.
Annual Air Quality Insights
Sosan, Chungnam, South Korea
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
24AQI (US)
30AQI (US)
45AQI (US)
76AQI (US)
44AQI (US)
42AQI (US)
54AQI (US)
27AQI (US)
40AQI (US)
70AQI (US)
26AQI (US)
40AQI (US)
40AQI (US)
30AQI (US)
103AQI (US)
93AQI (US)
89AQI (US)
87AQI (US)
48AQI (US)
25AQI (US)
30AQI (US)
34AQI (US)
49AQI (US)
43AQI (US)
23AQI (US)
37AQI (US)
48AQI (US)
30AQI (US)
46AQI (US)
39AQI (US)
55AQI (US)
73AQI (US)
60AQI (US)
46AQI (US)
82AQI (US)
86AQI (US)
60AQI (US)
32AQI (US)
39AQI (US)
36AQI (US)
62AQI (US)
92AQI (US)
71AQI (US)
97AQI (US)
119AQI (US)
81AQI (US)
41AQI (US)
37AQI (US)
59AQI (US)
36AQI (US)
57AQI (US)
87AQI (US)
55AQI (US)
33AQI (US)
42AQI (US)
60AQI (US)
52AQI (US)
43AQI (US)
61AQI (US)
51AQI (US)
22AQI (US)
31AQI (US)
69AQI (US)
86AQI (US)
55AQI (US)
48AQI (US)
47AQI (US)
84AQI (US)
60AQI (US)
67AQI (US)
88AQI (US)
47AQI (US)
61AQI (US)
59AQI (US)
No. of days
202655AQI (US)
Highest AQI (US) recorded in
February61AQI (US)
Lowest AQI (US) recorded in
January47AQI (US)
202558AQI (US)
Highest AQI (US) recorded in
March79AQI (US)
Lowest AQI (US) recorded in
September44AQI (US)
202459AQI (US)
Highest AQI (US) recorded in
January74AQI (US)
Lowest AQI (US) recorded in
July41AQI (US)
202364AQI (US)
Highest AQI (US) recorded in
February88AQI (US)
Lowest AQI (US) recorded in
August47AQI (US)
202264AQI (US)
Highest AQI (US) recorded in
February83AQI (US)
Lowest AQI (US) recorded in
August38AQI (US)
202168AQI (US)
Highest AQI (US) recorded in
March102AQI (US)
Lowest AQI (US) recorded in
September43AQI (US)
202058AQI (US)
Highest AQI (US) recorded in
December71AQI (US)
Lowest AQI (US) recorded in
August47AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Sosan's annual 2026 AQI (US) (55) shows an average percentage change of -11.2% (improved AQI (US)) compared to previous years: 2020 (58), 2021 (68), 2022 (64), 2023 (64), 2024 (59), 2025 (58).