Bupyeong, 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
Bupyeong, 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 2nd highest AQI at 50 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
Bupyeong, Bucheon, Gyeonggi, South Korea
6 AM17th Sep 2025
7 PM
5 AM18th Sep 2025
AQI
AQI
54AQI
16AQI
In the last 24 hours,
Bupyeong's AQI reached its highest point of 54 at 6 AM during the Night, while the lowest point, 16, was recorded at 4 PM during the Night between 17th Sep and 18th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Bupyeong, Bucheon, Gyeonggi, South Korea
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
26°C23/30°C
25°C21/29°C
23°C21/27°C
24°C22/27°C
26°C22/30°C
25°C24/28°C
--°C/°C
--°C/°C
49AQI
44AQI
48AQI
46AQI
2025 Days Vs Air Quality
Bupyeong, Bucheon, Gyeonggi, South Korea
23%
59
69%
178
8%
21
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: 23%
Health Risk Level:
Very high
In 2025, 23% 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
Bupyeong, Bucheon, Gyeonggi, South Korea
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
76AQI
56AQI
59AQI
59AQI
72AQI
104AQI
58AQI
76AQI
44AQI
57AQI
63AQI
79AQI
93AQI
110AQI
58AQI
83AQI
78AQI
86AQI
82AQI
135AQI
133AQI
155AQI
106AQI
112AQI
71AQI
61AQI
70AQI
63AQI
64AQI
51AQI
78AQI
87AQI
85AQI
59AQI
53AQI
46AQI
55AQI
50AQI
45AQI
50AQI
58AQI
77AQI
85AQI
56AQI
97AQI
61AQI
114AQI
50AQI
65AQI
48AQI
58AQI
56AQI
61AQI
56AQI
59AQI
56AQI
71AQI
62AQI
84AQI
112AQI
94AQI
61AQI
49AQI
39AQI
77AQI
97AQI
90AQI
116AQI
127AQI
124AQI
104AQI
104AQI
76AQI
65AQI
75AQI
69AQI
81AQI
82AQI
95AQI
107AQI
114AQI
119AQI
116AQI
138AQI
98AQI
99AQI
62AQI
54AQI
49AQI
65AQI
78AQI
87AQI
92AQI
87AQI
73AQI
70AQI
77AQI
84AQI
82AQI
87AQI
101AQI
76AQI
68AQI
51AQI
62AQI
66AQI
72AQI
87AQI
50AQI
68AQI
57AQI
48AQI
38AQI
69AQI
64AQI
59AQI
48AQI
65AQI
74AQI
62AQI
68AQI
54AQI
54AQI
53AQI
56AQI
46AQI
58AQI
63AQI
56AQI
63AQI
81AQI
80AQI
79AQI
74AQI
71AQI
66AQI
48AQI
59AQI
62AQI
41AQI
51AQI
54AQI
67AQI
49AQI
54AQI
74AQI
90AQI
103AQI
88AQI
97AQI
98AQI
96AQI
102AQI
80AQI
59AQI
60AQI
59AQI
71AQI
59AQI
66AQI
55AQI
60AQI
72AQI
77AQI
69AQI
61AQI
72AQI
69AQI
71AQI
70AQI
48AQI
66AQI
74AQI
79AQI
66AQI
54AQI
58AQI
71AQI
69AQI
63AQI
58AQI
47AQI
50AQI
60AQI
58AQI
54AQI
59AQI
80AQI
77AQI
70AQI
59AQI
51AQI
51AQI
67AQI
55AQI
45AQI
54AQI
37AQI
45AQI
38AQI
44AQI
42AQI
44AQI
45AQI
53AQI
65AQI
64AQI
55AQI
73AQI
74AQI
79AQI
67AQI
59AQI
61AQI
61AQI
51AQI
51AQI
48AQI
49AQI
58AQI
60AQI
54AQI
60AQI
53AQI
42AQI
40AQI
40AQI
37AQI
41AQI
51AQI
45AQI
47AQI
47AQI
48AQI
48AQI
51AQI
48AQI
43AQI
49AQI
51AQI
44AQI
42AQI
48AQI
39AQI
48AQI
52AQI
41AQI
37AQI
39AQI
43AQI
49AQI
52AQI
50AQI
53AQI
51AQI
41AQI
43AQI
49AQI
50AQI
80AQI
64AQI
89AQI
70AQI
66AQI
68AQI
57AQI
49AQI
46AQI
No. of days
202567AQI
Highest AQI recorded in
March89AQI
Lowest AQI recorded in
September46AQI
202468AQI
Highest AQI recorded in
April82AQI
Lowest AQI recorded in
September48AQI
202374AQI
Highest AQI recorded in
March100AQI
Lowest AQI recorded in
September53AQI
202270AQI
Highest AQI recorded in
February88AQI
Lowest AQI recorded in
August44AQI
202169AQI
Highest AQI recorded in
March101AQI
Lowest AQI recorded in
September36AQI
202061AQI
Highest AQI recorded in
December82AQI
Lowest AQI recorded in
September45AQI
Most & Least Polluted Years Over the Last 6 Years
Bupyeong's annual 2025 AQI (67) shows an average percentage change of -2.1% (improved AQI) compared to previous years: 2020 (61), 2021 (69), 2022 (70), 2023 (74), 2024 (68).