Gangseo Gu, 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!
October Air Quality Analysis
Gangseo Gu, Bucheon, Gyeonggi, South Korea
AQI Trends: Highest and Lowest
Same Day Analysis (3rd October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 83 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 3rd Oct - 4th Oct 2025
Gangseo Gu, Bucheon, Gyeonggi, South Korea
6 AM3rd Oct 2025
6 PM
5 AM4th Oct 2025
83AQI
56AQI
57AQI
35AQI
In the last 24 hours,
Gangseo Gu's AQI reached its highest point of 83 at 6 AM during the Day, while the lowest point, 35, was recorded at 5 AM during the Night between 3rd Oct and 4th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Gangseo Gu, Bucheon, Gyeonggi, South Korea
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
22°C19/24°C
21°C19/24°C
19°C17/22°C
18°C17/21°C
21°C16/26°C
21°C17/25°C
22°C19/27°C
21°C19/23°C
22°C20/27°C
22°C18/28°C
23°C18/28°C
20°C18/21°C
20°C17/25°C
21°C17/25°C
21°C17/26°C
22°C18/27°C
21°C19/23°C
--°C/°C
48AQI
42AQI
48AQI
44AQI
2025 Days Vs Air Quality
Gangseo Gu, Bucheon, Gyeonggi, South Korea
25%
69
68%
188
7%
18
0.3%
1
Total number of days with different AQI categories in last 277 days in 2025 (88 days remaining)
Under WHO’s Safe Air Quality Limits: 25%
Health Risk Level:
Very high
In 2025, 25% of 277 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
Gangseo Gu, Bucheon, Gyeonggi, South Korea
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
76AQI
59AQI
61AQI
62AQI
74AQI
101AQI
61AQI
76AQI
47AQI
61AQI
65AQI
79AQI
92AQI
109AQI
60AQI
82AQI
81AQI
88AQI
85AQI
137AQI
138AQI
151AQI
114AQI
119AQI
70AQI
60AQI
68AQI
64AQI
64AQI
52AQI
74AQI
84AQI
80AQI
57AQI
55AQI
44AQI
53AQI
50AQI
45AQI
50AQI
56AQI
80AQI
79AQI
55AQI
98AQI
60AQI
116AQI
50AQI
65AQI
48AQI
56AQI
56AQI
62AQI
57AQI
58AQI
53AQI
69AQI
59AQI
83AQI
110AQI
86AQI
60AQI
49AQI
39AQI
73AQI
99AQI
87AQI
110AQI
122AQI
109AQI
103AQI
91AQI
79AQI
61AQI
75AQI
68AQI
77AQI
81AQI
93AQI
107AQI
115AQI
121AQI
119AQI
129AQI
92AQI
93AQI
59AQI
54AQI
46AQI
61AQI
78AQI
80AQI
77AQI
79AQI
58AQI
65AQI
72AQI
77AQI
74AQI
80AQI
93AQI
69AQI
63AQI
48AQI
57AQI
65AQI
70AQI
82AQI
48AQI
65AQI
54AQI
47AQI
40AQI
67AQI
62AQI
55AQI
45AQI
61AQI
72AQI
58AQI
64AQI
51AQI
50AQI
50AQI
52AQI
44AQI
57AQI
63AQI
52AQI
59AQI
76AQI
75AQI
76AQI
73AQI
68AQI
65AQI
51AQI
59AQI
61AQI
38AQI
52AQI
51AQI
65AQI
48AQI
52AQI
70AQI
82AQI
93AQI
82AQI
84AQI
93AQI
94AQI
101AQI
77AQI
58AQI
61AQI
59AQI
72AQI
61AQI
67AQI
54AQI
56AQI
67AQI
74AQI
70AQI
64AQI
71AQI
72AQI
73AQI
68AQI
54AQI
62AQI
74AQI
76AQI
66AQI
57AQI
57AQI
64AQI
66AQI
55AQI
51AQI
48AQI
46AQI
52AQI
53AQI
51AQI
54AQI
65AQI
67AQI
60AQI
55AQI
53AQI
51AQI
61AQI
55AQI
46AQI
52AQI
41AQI
44AQI
36AQI
40AQI
40AQI
40AQI
39AQI
52AQI
63AQI
58AQI
54AQI
72AQI
75AQI
70AQI
66AQI
59AQI
61AQI
61AQI
51AQI
52AQI
49AQI
51AQI
59AQI
57AQI
53AQI
59AQI
51AQI
42AQI
41AQI
40AQI
38AQI
42AQI
52AQI
46AQI
47AQI
48AQI
48AQI
50AQI
52AQI
49AQI
45AQI
50AQI
51AQI
45AQI
43AQI
49AQI
40AQI
48AQI
51AQI
41AQI
39AQI
40AQI
44AQI
50AQI
53AQI
50AQI
51AQI
50AQI
41AQI
43AQI
49AQI
43AQI
37AQI
30AQI
32AQI
26AQI
26AQI
27AQI
27AQI
30AQI
45AQI
64AQI
54AQI
51AQI
57AQI
69AQI
65AQI
60AQI
83AQI
82AQI
64AQI
86AQI
65AQI
63AQI
67AQI
54AQI
50AQI
44AQI
69AQI
No. of days
202564AQI
Highest AQI recorded in
March86AQI
Lowest AQI recorded in
September44AQI
202460AQI
Highest AQI recorded in
April70AQI
Lowest AQI recorded in
September44AQI
202365AQI
Highest AQI recorded in
March93AQI
Lowest AQI recorded in
September45AQI
202264AQI
Highest AQI recorded in
January79AQI
Lowest AQI recorded in
August30AQI
202168AQI
Highest AQI recorded in
March98AQI
Lowest AQI recorded in
September36AQI
202063AQI
Highest AQI recorded in
December78AQI
Lowest AQI recorded in
September46AQI
Most & Least Polluted Years Over the Last 6 Years
Gangseo Gu's annual 2025 AQI (64) shows an average percentage change of -0.05% (improved AQI) compared to previous years: 2020 (63), 2021 (68), 2022 (64), 2023 (65), 2024 (60).