Pyeongchang Eup, Chechon, 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
Pyeongchang Eup, Chechon, 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 3rd highest AQI at 28 of Good air quality, showing improvement over 2023 and 2022 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 21st Sep - 22nd Sep 2025
Pyeongchang Eup, Chechon, Chungbuk, South Korea
6 AM21st Sep 2025
6 PM
5 AM22nd Sep 2025
AQI
AQI
33AQI
14AQI
In the last 24 hours,
Pyeongchang Eup's AQI reached its highest point of 33 at 6 AM during the Night, while the lowest point, undefined, was recorded at 5 AM during the Night between 21st Sep and 22nd Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Pyeongchang Eup, Chechon, Chungbuk, South Korea
25°C18/33°C
25°C20/31°C
24°C19/32°C
22°C19/27°C
22°C17/30°C
22°C17/30°C
23°C19/29°C
23°C19/28°C
23°C18/30°C
22°C18/28°C
22°C18/29°C
22°C15/31°C
19°C16/22°C
22°C16/30°C
22°C17/26°C
22°C18/28°C
20°C13/29°C
19°C16/24°C
18°C13/27°C
18°C11/27°C
18°C13/25°C
17°C15/19°C
18°C15/25°C
20°C14/28°C
20°C15/27°C
19°C17/22°C
15°C14/18°C
14°C10/18°C
14°C11/19°C
--°C/°C
--°C/°C
46AQI
40AQI
47AQI
42AQI
2025 Days Vs Air Quality
Pyeongchang Eup, Chechon, Chungbuk, South Korea
32%
83
66%
174
2%
6
Total number of days with different AQI categories in last 264 days in 2025 (101 days remaining)
Under WHO’s Safe Air Quality Limits: 32%
Health Risk Level:
High
In 2025, 32% of 264 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
Pyeongchang Eup, Chechon, Chungbuk, South Korea
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
71AQI
71AQI
58AQI
62AQI
67AQI
92AQI
60AQI
61AQI
40AQI
51AQI
57AQI
72AQI
86AQI
94AQI
60AQI
71AQI
71AQI
83AQI
75AQI
101AQI
127AQI
122AQI
113AQI
87AQI
63AQI
51AQI
65AQI
55AQI
61AQI
55AQI
78AQI
70AQI
68AQI
56AQI
48AQI
45AQI
45AQI
51AQI
51AQI
56AQI
60AQI
73AQI
73AQI
52AQI
73AQI
57AQI
99AQI
51AQI
59AQI
46AQI
55AQI
54AQI
57AQI
59AQI
60AQI
61AQI
83AQI
62AQI
72AQI
75AQI
67AQI
51AQI
46AQI
40AQI
43AQI
63AQI
67AQI
72AQI
78AQI
86AQI
86AQI
71AQI
63AQI
49AQI
56AQI
60AQI
53AQI
72AQI
77AQI
92AQI
84AQI
90AQI
97AQI
119AQI
86AQI
109AQI
85AQI
62AQI
56AQI
62AQI
62AQI
63AQI
69AQI
72AQI
65AQI
62AQI
69AQI
81AQI
72AQI
71AQI
65AQI
57AQI
55AQI
56AQI
52AQI
66AQI
65AQI
76AQI
61AQI
58AQI
51AQI
44AQI
32AQI
56AQI
69AQI
60AQI
56AQI
52AQI
63AQI
59AQI
55AQI
55AQI
51AQI
52AQI
51AQI
42AQI
53AQI
67AQI
52AQI
41AQI
63AQI
67AQI
70AQI
67AQI
64AQI
55AQI
43AQI
56AQI
60AQI
59AQI
55AQI
57AQI
65AQI
46AQI
50AQI
55AQI
64AQI
71AQI
62AQI
51AQI
52AQI
57AQI
69AQI
63AQI
48AQI
52AQI
56AQI
63AQI
62AQI
62AQI
61AQI
52AQI
57AQI
59AQI
49AQI
54AQI
53AQI
61AQI
64AQI
63AQI
56AQI
49AQI
49AQI
54AQI
51AQI
46AQI
47AQI
55AQI
56AQI
55AQI
49AQI
46AQI
43AQI
47AQI
53AQI
52AQI
54AQI
59AQI
63AQI
57AQI
55AQI
50AQI
49AQI
51AQI
45AQI
42AQI
49AQI
40AQI
41AQI
37AQI
37AQI
41AQI
40AQI
41AQI
46AQI
50AQI
44AQI
42AQI
45AQI
51AQI
49AQI
47AQI
56AQI
60AQI
61AQI
55AQI
53AQI
45AQI
47AQI
51AQI
53AQI
46AQI
50AQI
48AQI
44AQI
46AQI
52AQI
49AQI
45AQI
51AQI
50AQI
48AQI
49AQI
50AQI
50AQI
52AQI
52AQI
46AQI
47AQI
50AQI
47AQI
49AQI
50AQI
43AQI
48AQI
46AQI
37AQI
34AQI
41AQI
43AQI
48AQI
51AQI
49AQI
51AQI
49AQI
49AQI
44AQI
48AQI
44AQI
37AQI
30AQI
32AQI
28AQI
74AQI
61AQI
72AQI
61AQI
56AQI
56AQI
47AQI
50AQI
43AQI
No. of days
202558AQI
Highest AQI recorded in
January74AQI
Lowest AQI recorded in
September43AQI
202451AQI
Highest AQI recorded in
March69AQI
Lowest AQI recorded in
September31AQI
202351AQI
Highest AQI recorded in
January72AQI
Lowest AQI recorded in
September34AQI
202256AQI
Highest AQI recorded in
December81AQI
Lowest AQI recorded in
August20AQI
202151AQI
Highest AQI recorded in
November64AQI
Lowest AQI recorded in
September31AQI
202055AQI
Highest AQI recorded in
November71AQI
Lowest AQI recorded in
September40AQI
Most & Least Polluted Years Over the Last 6 Years
Pyeongchang Eup's annual 2025 AQI (58) shows an average percentage change of 10.5% (worsened AQI) compared to previous years: 2020 (55), 2021 (51), 2022 (56), 2023 (51), 2024 (51).