Songjeong Dong, Cheongju, Chungbuk, 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
Songjeong Dong, Cheongju, Chungbuk, 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 31 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: 21st Sep - 22nd Sep 2025
Songjeong Dong, Cheongju, Chungbuk, South Korea
6 AM21st Sep 2025
6 PM
5 AM22nd Sep 2025
AQI
AQI
36AQI
16AQI
In the last 24 hours,
Songjeong Dong's AQI reached its highest point of 36 at 3 AM during the Night, while the lowest point, 16, was recorded at 5 PM during the Night between 21st Sep and 22nd Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Songjeong Dong, Cheongju, Chungbuk, South Korea
27°C22/33°C
28°C24/34°C
27°C23/33°C
25°C22/29°C
25°C20/31°C
26°C21/32°C
26°C22/32°C
26°C22/32°C
27°C22/33°C
26°C22/32°C
24°C21/29°C
25°C19/32°C
22°C21/25°C
26°C20/33°C
26°C21/32°C
24°C20/28°C
22°C17/27°C
20°C19/23°C
22°C19/28°C
23°C17/30°C
21°C19/24°C
24°C20/28°C
23°C19/28°C
24°C19/30°C
24°C20/29°C
22°C20/24°C
19°C17/23°C
17°C16/19°C
17°C15/22°C
--°C/°C
--°C/°C
44AQI
36AQI
45AQI
38AQI
2025 Days Vs Air Quality
Songjeong Dong, Cheongju, Chungbuk, South Korea
43%
113
53%
140
4%
10
Total number of days with different AQI categories in last 264 days in 2025 (101 days remaining)
Under WHO’s Safe Air Quality Limits: 43%
Health Risk Level:
Significant
In 2025, 43% of 264 days were within WHO’s safe air quality limits, and 57% exceeded them. The risk of health issues is Significant, especially for those with existing respiratory or heart conditions.
Annual Air Quality Insights
Songjeong Dong, Cheongju, Chungbuk, South Korea
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
72AQI
80AQI
62AQI
60AQI
65AQI
92AQI
60AQI
73AQI
44AQI
62AQI
64AQI
86AQI
91AQI
97AQI
63AQI
73AQI
96AQI
96AQI
101AQI
117AQI
144AQI
141AQI
130AQI
123AQI
91AQI
63AQI
70AQI
57AQI
65AQI
59AQI
84AQI
95AQI
93AQI
64AQI
58AQI
54AQI
56AQI
52AQI
49AQI
59AQI
63AQI
88AQI
87AQI
57AQI
83AQI
63AQI
106AQI
55AQI
67AQI
53AQI
58AQI
56AQI
60AQI
59AQI
57AQI
59AQI
70AQI
61AQI
77AQI
109AQI
82AQI
58AQI
46AQI
43AQI
72AQI
82AQI
80AQI
88AQI
91AQI
102AQI
94AQI
95AQI
78AQI
48AQI
66AQI
58AQI
70AQI
73AQI
84AQI
86AQI
94AQI
96AQI
99AQI
120AQI
79AQI
86AQI
64AQI
44AQI
44AQI
55AQI
69AQI
71AQI
76AQI
78AQI
62AQI
62AQI
62AQI
69AQI
64AQI
68AQI
75AQI
57AQI
55AQI
40AQI
49AQI
58AQI
61AQI
75AQI
49AQI
57AQI
38AQI
38AQI
28AQI
53AQI
53AQI
44AQI
35AQI
45AQI
56AQI
48AQI
43AQI
46AQI
46AQI
41AQI
44AQI
36AQI
47AQI
64AQI
43AQI
43AQI
61AQI
64AQI
66AQI
68AQI
48AQI
44AQI
40AQI
55AQI
55AQI
38AQI
37AQI
47AQI
52AQI
45AQI
40AQI
55AQI
63AQI
70AQI
73AQI
58AQI
69AQI
78AQI
92AQI
77AQI
55AQI
48AQI
55AQI
61AQI
59AQI
57AQI
53AQI
48AQI
50AQI
57AQI
36AQI
46AQI
54AQI
59AQI
59AQI
60AQI
39AQI
35AQI
26AQI
43AQI
37AQI
28AQI
39AQI
62AQI
61AQI
45AQI
41AQI
38AQI
36AQI
51AQI
51AQI
46AQI
51AQI
59AQI
57AQI
49AQI
45AQI
48AQI
46AQI
61AQI
53AQI
39AQI
49AQI
35AQI
38AQI
29AQI
36AQI
38AQI
33AQI
48AQI
57AQI
51AQI
41AQI
37AQI
51AQI
54AQI
48AQI
51AQI
56AQI
62AQI
60AQI
49AQI
49AQI
44AQI
50AQI
50AQI
54AQI
46AQI
51AQI
40AQI
39AQI
37AQI
36AQI
36AQI
39AQI
50AQI
43AQI
44AQI
45AQI
45AQI
48AQI
49AQI
45AQI
42AQI
47AQI
50AQI
45AQI
42AQI
47AQI
38AQI
44AQI
47AQI
41AQI
33AQI
36AQI
38AQI
45AQI
46AQI
45AQI
45AQI
43AQI
36AQI
37AQI
47AQI
42AQI
34AQI
33AQI
32AQI
31AQI
83AQI
66AQI
77AQI
57AQI
52AQI
52AQI
46AQI
46AQI
40AQI
No. of days
202558AQI
Highest AQI recorded in
January83AQI
Lowest AQI recorded in
September40AQI
202462AQI
Highest AQI recorded in
February87AQI
Lowest AQI recorded in
July36AQI
202370AQI
Highest AQI recorded in
February94AQI
Lowest AQI recorded in
May48AQI
202269AQI
Highest AQI recorded in
January89AQI
Lowest AQI recorded in
August34AQI
202174AQI
Highest AQI recorded in
March98AQI
Lowest AQI recorded in
July47AQI
202067AQI
Highest AQI recorded in
December92AQI
Lowest AQI recorded in
June35AQI
Most & Least Polluted Years Over the Last 6 Years
Songjeong Dong's annual 2025 AQI (58) shows an average percentage change of -14.6% (improved AQI) compared to previous years: 2020 (67), 2021 (74), 2022 (69), 2023 (70), 2024 (62).