Gwanak Gu, Gwangmyeongni, Gyeonggi, 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
Gwanak Gu, Gwangmyeongni, Gyeonggi, South Korea
AQI Trends: Highest and Lowest
Same Day Analysis (16th September ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 47 of Good air quality, showing improvement over 2022 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 17th Sep - 18th Sep 2025
Gwanak Gu, Gwangmyeongni, Gyeonggi, South Korea
6 AM17th Sep 2025
7 PM
5 AM18th Sep 2025
AQI
AQI
52AQI
18AQI
In the last 24 hours,
Gwanak Gu's AQI reached its highest point of 52 at 6 AM during the Night, while the lowest point, undefined, was recorded at 5 AM during the Night between 17th Sep and 18th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Gwanak Gu, Gwangmyeongni, Gyeonggi, South Korea
28°C24/32°C
28°C24/32°C
29°C25/33°C
29°C25/33°C
29°C25/33°C
30°C26/34°C
29°C26/34°C
27°C24/31°C
27°C23/33°C
27°C24/32°C
27°C25/32°C
28°C24/32°C
28°C24/33°C
25°C23/28°C
26°C22/31°C
27°C22/32°C
24°C22/29°C
27°C22/33°C
27°C24/32°C
26°C23/29°C
25°C21/31°C
25°C22/28°C
25°C19/31°C
26°C20/32°C
24°C21/29°C
22°C20/26°C
24°C20/29°C
26°C21/31°C
24°C22/28°C
--°C/°C
--°C/°C
49AQI
44AQI
48AQI
46AQI
2025 Days Vs Air Quality
Gwanak Gu, Gwangmyeongni, Gyeonggi, South Korea
25%
66
68%
176
6%
16
0.3%
1
Total number of days with different AQI categories in last 260 days in 2025 (105 days remaining)
Under WHO’s Safe Air Quality Limits: 25%
Health Risk Level:
Very high
In 2025, 25% of 260 days were within WHO’s safe air quality limits. The risk of health issues is Very high, including respiratory issues, heart disease, and stress, particularly affecting vulnerable groups.
Annual Air Quality Insights
Gwanak Gu, Gwangmyeongni, Gyeonggi, South Korea
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
76AQI
57AQI
61AQI
61AQI
72AQI
100AQI
59AQI
75AQI
44AQI
58AQI
61AQI
77AQI
89AQI
106AQI
55AQI
80AQI
85AQI
85AQI
88AQI
137AQI
135AQI
151AQI
113AQI
116AQI
63AQI
61AQI
67AQI
64AQI
62AQI
56AQI
76AQI
85AQI
82AQI
59AQI
54AQI
47AQI
54AQI
51AQI
48AQI
50AQI
58AQI
82AQI
83AQI
58AQI
100AQI
62AQI
113AQI
51AQI
65AQI
48AQI
57AQI
55AQI
64AQI
56AQI
62AQI
55AQI
71AQI
58AQI
85AQI
111AQI
81AQI
60AQI
46AQI
41AQI
76AQI
101AQI
92AQI
111AQI
123AQI
111AQI
100AQI
98AQI
80AQI
63AQI
76AQI
68AQI
76AQI
83AQI
92AQI
106AQI
115AQI
119AQI
119AQI
130AQI
96AQI
94AQI
62AQI
55AQI
49AQI
63AQI
79AQI
81AQI
76AQI
78AQI
59AQI
66AQI
73AQI
79AQI
75AQI
82AQI
91AQI
70AQI
64AQI
47AQI
61AQI
65AQI
72AQI
87AQI
53AQI
66AQI
57AQI
47AQI
43AQI
69AQI
66AQI
58AQI
48AQI
61AQI
71AQI
61AQI
64AQI
53AQI
51AQI
53AQI
53AQI
45AQI
56AQI
63AQI
51AQI
59AQI
75AQI
75AQI
78AQI
74AQI
71AQI
61AQI
51AQI
60AQI
62AQI
41AQI
51AQI
49AQI
64AQI
46AQI
53AQI
67AQI
78AQI
86AQI
77AQI
79AQI
85AQI
89AQI
93AQI
73AQI
52AQI
54AQI
55AQI
67AQI
52AQI
62AQI
47AQI
52AQI
61AQI
70AQI
59AQI
56AQI
65AQI
65AQI
66AQI
64AQI
52AQI
60AQI
71AQI
74AQI
63AQI
54AQI
56AQI
61AQI
63AQI
52AQI
49AQI
44AQI
42AQI
45AQI
48AQI
46AQI
51AQI
64AQI
63AQI
56AQI
51AQI
48AQI
48AQI
58AQI
52AQI
44AQI
49AQI
40AQI
41AQI
37AQI
38AQI
37AQI
36AQI
38AQI
45AQI
55AQI
50AQI
49AQI
63AQI
67AQI
63AQI
64AQI
59AQI
61AQI
61AQI
51AQI
52AQI
46AQI
50AQI
55AQI
55AQI
53AQI
57AQI
53AQI
42AQI
44AQI
41AQI
39AQI
41AQI
50AQI
46AQI
47AQI
48AQI
47AQI
48AQI
52AQI
49AQI
44AQI
51AQI
53AQI
47AQI
44AQI
51AQI
40AQI
49AQI
52AQI
38AQI
37AQI
40AQI
43AQI
49AQI
54AQI
51AQI
51AQI
50AQI
41AQI
44AQI
49AQI
47AQI
80AQI
65AQI
87AQI
67AQI
62AQI
62AQI
49AQI
50AQI
46AQI
No. of days
202564AQI
Highest AQI recorded in
March87AQI
Lowest AQI recorded in
September46AQI
202462AQI
Highest AQI recorded in
April74AQI
Lowest AQI recorded in
September43AQI
202366AQI
Highest AQI recorded in
March92AQI
Lowest AQI recorded in
September49AQI
202262AQI
Highest AQI recorded in
February80AQI
Lowest AQI recorded in
August32AQI
202162AQI
Highest AQI recorded in
March85AQI
Lowest AQI recorded in
September38AQI
202059AQI
Highest AQI recorded in
December70AQI
Lowest AQI recorded in
September41AQI
Most & Least Polluted Years Over the Last 6 Years
Gwanak Gu's annual 2025 AQI (64) shows an average percentage change of 3.05% (worsened AQI) compared to previous years: 2020 (59), 2021 (62), 2022 (62), 2023 (66), 2024 (62).