Cheongyang Eup, Asan, Chungnam, South Korea Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
October Air Quality Analysis
Cheongyang Eup, Asan, Chungnam, South Korea
AQI Trends: Highest and Lowest
Same Day Analysis (4th October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 36 of Good air quality, showing improvement over 2023 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 5th Oct - 6th Oct 2025
Cheongyang Eup, Asan, Chungnam, South Korea
6 AM5th Oct 2025
6 PM
5 AM6th Oct 2025
AQI
AQI
71AQI
47AQI
In the last 24 hours,
Cheongyang Eup's AQI reached its highest point of 71 at 1 PM during the Night, while the lowest point, undefined, was recorded at 5 AM during the Night between 5th Oct and 6th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Cheongyang Eup, Asan, Chungnam, South Korea
26°C23/31°C
24°C19/29°C
22°C18/28°C
21°C17/23°C
22°C18/28°C
23°C18/29°C
22°C20/24°C
24°C20/27°C
23°C19/28°C
24°C20/30°C
25°C21/29°C
22°C19/25°C
20°C17/26°C
18°C15/20°C
18°C15/22°C
19°C15/25°C
20°C17/25°C
20°C17/24°C
21°C16/25°C
21°C20/22°C
20°C16/26°C
21°C16/27°C
19°C17/20°C
19°C15/23°C
18°C14/23°C
18°C14/24°C
20°C17/24°C
17°C16/18°C
19°C17/21°C
--°C/°C
--°C/°C
45AQI
40AQI
48AQI
42AQI
2025 Days Vs Air Quality
Cheongyang Eup, Asan, Chungnam, South Korea
33%
91
62%
173
5%
13
Total number of days with different AQI categories in last 278 days in 2025 (87 days remaining)
Under WHO’s Safe Air Quality Limits: 33%
Health Risk Level:
High
In 2025, 33% of 278 days were within WHO’s safe air quality limits. The risk of health issues is High, with respiratory problems, heart disease, skin issues, and stress being more common, particularly among children and the elderly.
Annual Air Quality Insights
Cheongyang Eup, Asan, Chungnam, South Korea
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
72AQI
62AQI
58AQI
53AQI
67AQI
79AQI
55AQI
64AQI
40AQI
59AQI
61AQI
76AQI
87AQI
91AQI
57AQI
67AQI
73AQI
73AQI
79AQI
112AQI
127AQI
134AQI
111AQI
111AQI
80AQI
59AQI
69AQI
53AQI
58AQI
61AQI
73AQI
100AQI
101AQI
61AQI
51AQI
47AQI
50AQI
47AQI
42AQI
50AQI
57AQI
72AQI
72AQI
51AQI
79AQI
57AQI
106AQI
54AQI
65AQI
46AQI
55AQI
51AQI
59AQI
53AQI
52AQI
52AQI
76AQI
59AQI
71AQI
91AQI
67AQI
55AQI
44AQI
37AQI
69AQI
80AQI
79AQI
105AQI
94AQI
100AQI
95AQI
85AQI
87AQI
54AQI
74AQI
62AQI
83AQI
81AQI
99AQI
102AQI
113AQI
117AQI
116AQI
137AQI
94AQI
93AQI
64AQI
54AQI
52AQI
64AQI
77AQI
79AQI
85AQI
84AQI
76AQI
69AQI
73AQI
80AQI
69AQI
76AQI
81AQI
66AQI
64AQI
46AQI
60AQI
61AQI
69AQI
85AQI
54AQI
68AQI
55AQI
50AQI
48AQI
63AQI
61AQI
50AQI
42AQI
57AQI
63AQI
58AQI
56AQI
51AQI
51AQI
47AQI
49AQI
51AQI
50AQI
63AQI
48AQI
59AQI
72AQI
75AQI
75AQI
72AQI
53AQI
51AQI
47AQI
59AQI
59AQI
40AQI
47AQI
49AQI
59AQI
52AQI
49AQI
62AQI
71AQI
74AQI
77AQI
79AQI
87AQI
84AQI
96AQI
77AQI
62AQI
57AQI
60AQI
69AQI
63AQI
65AQI
60AQI
55AQI
57AQI
67AQI
50AQI
60AQI
63AQI
65AQI
64AQI
63AQI
51AQI
48AQI
43AQI
51AQI
53AQI
44AQI
51AQI
57AQI
57AQI
49AQI
47AQI
46AQI
48AQI
53AQI
52AQI
51AQI
52AQI
56AQI
62AQI
53AQI
52AQI
53AQI
53AQI
61AQI
58AQI
48AQI
55AQI
44AQI
47AQI
39AQI
44AQI
41AQI
36AQI
45AQI
51AQI
58AQI
56AQI
48AQI
56AQI
59AQI
59AQI
55AQI
57AQI
61AQI
60AQI
50AQI
50AQI
48AQI
48AQI
52AQI
54AQI
52AQI
55AQI
46AQI
39AQI
37AQI
37AQI
37AQI
38AQI
49AQI
43AQI
44AQI
42AQI
43AQI
46AQI
48AQI
45AQI
43AQI
47AQI
51AQI
46AQI
46AQI
49AQI
43AQI
46AQI
51AQI
47AQI
46AQI
40AQI
40AQI
47AQI
46AQI
49AQI
48AQI
48AQI
40AQI
43AQI
46AQI
45AQI
37AQI
46AQI
37AQI
33AQI
31AQI
27AQI
27AQI
28AQI
32AQI
62AQI
67AQI
47AQI
50AQI
46AQI
65AQI
62AQI
59AQI
36AQI
75AQI
62AQI
82AQI
66AQI
59AQI
60AQI
51AQI
47AQI
43AQI
56AQI
No. of days
202561AQI
Highest AQI recorded in
March82AQI
Lowest AQI recorded in
September43AQI
202458AQI
Highest AQI recorded in
February72AQI
Lowest AQI recorded in
July36AQI
202366AQI
Highest AQI recorded in
February104AQI
Lowest AQI recorded in
September46AQI
202268AQI
Highest AQI recorded in
February90AQI
Lowest AQI recorded in
June47AQI
202168AQI
Highest AQI recorded in
March102AQI
Lowest AQI recorded in
September35AQI
202062AQI
Highest AQI recorded in
December80AQI
Lowest AQI recorded in
August43AQI
Most & Least Polluted Years Over the Last 6 Years
Cheongyang Eup's annual 2025 AQI (61) shows an average percentage change of -5.7% (improved AQI) compared to previous years: 2020 (62), 2021 (68), 2022 (68), 2023 (66), 2024 (58).