Cheorwongun, Pocheon, Gyeonggi, 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
Cheorwongun, Pocheon, Gyeonggi, South Korea
AQI Trends: Highest and Lowest
Same Day Analysis (4th October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 48 of Good air quality, showing improvement over 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 4th Oct - 5th Oct 2025
Cheorwongun, Pocheon, Gyeonggi, South Korea
6 AM4th Oct 2025
6 PM
5 AM5th Oct 2025
52AQI
40AQI
54AQI
39AQI
In the last 24 hours,
Cheorwongun's AQI reached its highest point of 54 at 12 AM during the Night, while the lowest point, 39, was recorded at 3 AM during the Night between 4th Oct and 5th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Cheorwongun, Pocheon, Gyeonggi, South Korea
23°C16/30°C
23°C19/29°C
23°C19/27°C
22°C18/27°C
21°C17/27°C
21°C14/28°C
21°C15/29°C
21°C17/26°C
20°C17/23°C
20°C15/26°C
22°C17/28°C
22°C18/26°C
19°C17/21°C
18°C14/22°C
16°C12/21°C
15°C13/19°C
16°C11/23°C
16°C11/23°C
19°C14/25°C
18°C13/20°C
19°C14/24°C
18°C12/25°C
20°C15/26°C
17°C14/17°C
17°C13/23°C
17°C13/22°C
17°C13/23°C
18°C13/25°C
17°C12/22°C
18°C14/24°C
--°C/°C
41AQI
33AQI
42AQI
36AQI
2025 Days Vs Air Quality
Cheorwongun, Pocheon, Gyeonggi, South Korea
37%
102
60%
165
4%
10
Total number of days with different AQI categories in last 278 days in 2025 (87 days remaining)
Under WHO’s Safe Air Quality Limits: 37%
Health Risk Level:
High
In 2025, 37% 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
Cheorwongun, Pocheon, Gyeonggi, South Korea
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
69AQI
56AQI
59AQI
66AQI
70AQI
98AQI
58AQI
63AQI
44AQI
55AQI
57AQI
67AQI
85AQI
94AQI
57AQI
72AQI
74AQI
70AQI
86AQI
115AQI
134AQI
125AQI
105AQI
85AQI
57AQI
46AQI
63AQI
64AQI
61AQI
47AQI
63AQI
72AQI
59AQI
56AQI
47AQI
43AQI
50AQI
57AQI
46AQI
52AQI
54AQI
77AQI
78AQI
51AQI
87AQI
58AQI
109AQI
53AQI
62AQI
49AQI
54AQI
53AQI
56AQI
58AQI
57AQI
60AQI
77AQI
56AQI
81AQI
94AQI
78AQI
56AQI
50AQI
42AQI
53AQI
81AQI
77AQI
79AQI
97AQI
89AQI
83AQI
71AQI
66AQI
48AQI
65AQI
61AQI
57AQI
72AQI
89AQI
107AQI
111AQI
119AQI
123AQI
137AQI
90AQI
96AQI
69AQI
53AQI
46AQI
54AQI
77AQI
81AQI
70AQI
76AQI
55AQI
62AQI
73AQI
71AQI
74AQI
70AQI
71AQI
68AQI
51AQI
45AQI
49AQI
68AQI
71AQI
73AQI
50AQI
42AQI
49AQI
36AQI
30AQI
54AQI
63AQI
59AQI
59AQI
58AQI
63AQI
59AQI
53AQI
48AQI
43AQI
45AQI
42AQI
34AQI
49AQI
59AQI
57AQI
38AQI
68AQI
65AQI
73AQI
71AQI
61AQI
61AQI
42AQI
58AQI
59AQI
53AQI
44AQI
55AQI
58AQI
44AQI
45AQI
58AQI
69AQI
78AQI
66AQI
60AQI
49AQI
61AQI
81AQI
67AQI
54AQI
52AQI
58AQI
68AQI
57AQI
68AQI
55AQI
53AQI
54AQI
65AQI
60AQI
61AQI
59AQI
67AQI
67AQI
65AQI
52AQI
54AQI
56AQI
57AQI
53AQI
46AQI
48AQI
56AQI
56AQI
54AQI
51AQI
47AQI
45AQI
48AQI
53AQI
54AQI
57AQI
57AQI
58AQI
57AQI
54AQI
50AQI
47AQI
54AQI
46AQI
43AQI
51AQI
40AQI
40AQI
32AQI
37AQI
38AQI
33AQI
33AQI
44AQI
51AQI
53AQI
46AQI
52AQI
53AQI
56AQI
56AQI
57AQI
61AQI
59AQI
50AQI
52AQI
43AQI
44AQI
54AQI
56AQI
46AQI
53AQI
47AQI
39AQI
40AQI
49AQI
42AQI
42AQI
52AQI
45AQI
46AQI
47AQI
47AQI
49AQI
50AQI
48AQI
44AQI
44AQI
47AQI
44AQI
44AQI
45AQI
38AQI
47AQI
47AQI
38AQI
34AQI
38AQI
43AQI
46AQI
51AQI
47AQI
50AQI
51AQI
44AQI
46AQI
44AQI
45AQI
34AQI
27AQI
27AQI
27AQI
24AQI
25AQI
25AQI
25AQI
28AQI
30AQI
25AQI
20AQI
40AQI
43AQI
58AQI
47AQI
51AQI
48AQI
73AQI
61AQI
78AQI
61AQI
55AQI
59AQI
48AQI
48AQI
37AQI
51AQI
No. of days
202558AQI
Highest AQI recorded in
March78AQI
Lowest AQI recorded in
September37AQI
202456AQI
Highest AQI recorded in
January72AQI
Lowest AQI recorded in
September37AQI
202360AQI
Highest AQI recorded in
March79AQI
Lowest AQI recorded in
September39AQI
202256AQI
Highest AQI recorded in
February72AQI
Lowest AQI recorded in
October33AQI
202157AQI
Highest AQI recorded in
March82AQI
Lowest AQI recorded in
September32AQI
202060AQI
Highest AQI recorded in
December75AQI
Lowest AQI recorded in
September43AQI
Most & Least Polluted Years Over the Last 6 Years
Cheorwongun's annual 2025 AQI (58) shows an average percentage change of -0.2% (improved AQI) compared to previous years: 2020 (60), 2021 (57), 2022 (56), 2023 (60), 2024 (56).