Nae Dong, Bucheon, 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
Nae Dong, Bucheon, 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 1st highest AQI at 47 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 16th Sep - 17th Sep 2025
Nae Dong, Bucheon, Gyeonggi, South Korea
6 AM16th Sep 2025
7 PM
5 AM17th Sep 2025
66AQI
17AQI
53AQI
17AQI
In the last 24 hours,
Nae Dong's AQI reached its highest point of 66 at 10 AM during the Day, while the lowest point, 17, was recorded at 7 PM during the Night between 16th Sep and 17th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Nae Dong, Bucheon, Gyeonggi, South Korea
27°C26/31°C
28°C25/31°C
28°C25/31°C
28°C26/32°C
28°C26/31°C
28°C26/32°C
29°C26/32°C
29°C27/32°C
27°C25/29°C
27°C24/31°C
27°C25/31°C
27°C25/30°C
28°C25/31°C
28°C25/31°C
26°C24/29°C
26°C23/29°C
27°C24/32°C
25°C23/29°C
27°C24/32°C
27°C25/31°C
26°C24/29°C
25°C23/29°C
25°C23/28°C
26°C21/31°C
27°C22/32°C
25°C21/29°C
23°C21/27°C
24°C22/27°C
26°C22/30°C
25°C24/28°C
--°C/°C
49AQI
43AQI
48AQI
46AQI
2025 Days Vs Air Quality
Nae Dong, Bucheon, Gyeonggi, South Korea
28%
72
64%
167
8%
20
Total number of days with different AQI categories in last 260 days in 2025 (105 days remaining)
Under WHO’s Safe Air Quality Limits: 28%
Health Risk Level:
Very high
In 2025, 28% 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
Nae Dong, Bucheon, Gyeonggi, South Korea
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
76AQI
61AQI
58AQI
61AQI
72AQI
108AQI
60AQI
78AQI
46AQI
58AQI
64AQI
77AQI
95AQI
109AQI
58AQI
87AQI
83AQI
91AQI
84AQI
136AQI
135AQI
150AQI
114AQI
125AQI
74AQI
60AQI
69AQI
59AQI
58AQI
45AQI
84AQI
91AQI
80AQI
59AQI
54AQI
49AQI
55AQI
51AQI
40AQI
43AQI
55AQI
79AQI
84AQI
56AQI
93AQI
61AQI
115AQI
50AQI
63AQI
51AQI
58AQI
59AQI
59AQI
52AQI
58AQI
53AQI
69AQI
64AQI
89AQI
109AQI
89AQI
55AQI
52AQI
46AQI
77AQI
97AQI
87AQI
111AQI
123AQI
116AQI
106AQI
100AQI
84AQI
61AQI
71AQI
67AQI
85AQI
78AQI
96AQI
108AQI
115AQI
122AQI
120AQI
134AQI
98AQI
105AQI
63AQI
49AQI
41AQI
60AQI
78AQI
88AQI
88AQI
83AQI
65AQI
66AQI
72AQI
79AQI
79AQI
85AQI
93AQI
68AQI
60AQI
48AQI
54AQI
65AQI
70AQI
87AQI
46AQI
62AQI
53AQI
52AQI
41AQI
69AQI
63AQI
55AQI
39AQI
62AQI
68AQI
55AQI
61AQI
49AQI
51AQI
49AQI
53AQI
42AQI
55AQI
65AQI
61AQI
62AQI
80AQI
78AQI
78AQI
72AQI
68AQI
60AQI
50AQI
55AQI
60AQI
36AQI
51AQI
55AQI
66AQI
46AQI
48AQI
74AQI
82AQI
99AQI
85AQI
89AQI
93AQI
93AQI
104AQI
74AQI
56AQI
51AQI
56AQI
66AQI
53AQI
61AQI
50AQI
56AQI
64AQI
76AQI
69AQI
56AQI
67AQI
69AQI
71AQI
67AQI
52AQI
63AQI
68AQI
74AQI
64AQI
56AQI
56AQI
65AQI
64AQI
52AQI
47AQI
45AQI
37AQI
42AQI
49AQI
47AQI
50AQI
71AQI
72AQI
59AQI
52AQI
50AQI
46AQI
58AQI
54AQI
48AQI
50AQI
36AQI
40AQI
32AQI
32AQI
36AQI
31AQI
33AQI
49AQI
59AQI
56AQI
48AQI
66AQI
72AQI
67AQI
64AQI
59AQI
63AQI
62AQI
53AQI
53AQI
50AQI
46AQI
55AQI
54AQI
46AQI
57AQI
53AQI
44AQI
41AQI
41AQI
37AQI
41AQI
51AQI
48AQI
49AQI
50AQI
50AQI
50AQI
52AQI
50AQI
44AQI
50AQI
51AQI
45AQI
43AQI
49AQI
40AQI
48AQI
52AQI
39AQI
36AQI
40AQI
44AQI
50AQI
52AQI
50AQI
53AQI
51AQI
42AQI
43AQI
48AQI
47AQI
82AQI
64AQI
88AQI
66AQI
64AQI
64AQI
50AQI
50AQI
46AQI
No. of days
202565AQI
Highest AQI recorded in
March88AQI
Lowest AQI recorded in
September46AQI
202462AQI
Highest AQI recorded in
January83AQI
Lowest AQI recorded in
September36AQI
202369AQI
Highest AQI recorded in
March104AQI
Lowest AQI recorded in
August40AQI
202270AQI
Highest AQI recorded in
January90AQI
Lowest AQI recorded in
August32AQI
202181AQI
Highest AQI recorded in
March111AQI
Lowest AQI recorded in
September47AQI
202081AQI
Highest AQI recorded in
May102AQI
Lowest AQI recorded in
September55AQI
Most & Least Polluted Years Over the Last 6 Years
Nae Dong's annual 2025 AQI (65) shows an average percentage change of -9.7% (improved AQI) compared to previous years: 2020 (81), 2021 (81), 2022 (70), 2023 (69), 2024 (62).