Pyeongtaek, 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
Pyeongtaek, 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 50 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 17th Sep - 18th Sep 2025
Pyeongtaek, Gyeonggi, South Korea
6 AM17th Sep 2025
6 PM
5 AM18th Sep 2025
AQI
AQI
53AQI
18AQI
In the last 24 hours,
Pyeongtaek's AQI reached its highest point of 53 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
Pyeongtaek, Gyeonggi, South Korea
26°C24/30°C
27°C23/31°C
27°C24/31°C
27°C24/32°C
27°C23/31°C
28°C24/32°C
27°C24/32°C
26°C23/28°C
25°C21/30°C
25°C21/30°C
27°C24/31°C
27°C24/31°C
27°C23/32°C
25°C23/29°C
24°C21/28°C
25°C20/31°C
23°C22/26°C
26°C21/31°C
26°C23/30°C
24°C21/28°C
23°C19/27°C
22°C20/25°C
23°C19/29°C
23°C19/29°C
22°C20/24°C
23°C20/25°C
23°C21/27°C
24°C20/29°C
24°C21/29°C
--°C/°C
--°C/°C
48AQI
44AQI
48AQI
44AQI
2025 Days Vs Air Quality
Pyeongtaek, Gyeonggi, South Korea
25%
66
68%
175
7%
17
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
Pyeongtaek, Gyeonggi, South Korea
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
78AQI
69AQI
66AQI
67AQI
68AQI
96AQI
58AQI
69AQI
43AQI
59AQI
59AQI
83AQI
91AQI
101AQI
57AQI
77AQI
87AQI
86AQI
90AQI
131AQI
141AQI
151AQI
131AQI
125AQI
78AQI
63AQI
67AQI
56AQI
58AQI
56AQI
74AQI
80AQI
91AQI
55AQI
51AQI
45AQI
54AQI
45AQI
44AQI
53AQI
58AQI
78AQI
76AQI
53AQI
89AQI
59AQI
113AQI
50AQI
62AQI
48AQI
56AQI
54AQI
58AQI
53AQI
58AQI
54AQI
71AQI
62AQI
85AQI
102AQI
78AQI
56AQI
47AQI
39AQI
76AQI
92AQI
94AQI
110AQI
115AQI
112AQI
106AQI
102AQI
86AQI
59AQI
75AQI
63AQI
72AQI
80AQI
92AQI
100AQI
107AQI
114AQI
114AQI
131AQI
95AQI
91AQI
64AQI
50AQI
48AQI
62AQI
80AQI
86AQI
85AQI
88AQI
79AQI
74AQI
74AQI
82AQI
73AQI
79AQI
92AQI
69AQI
65AQI
46AQI
61AQI
63AQI
70AQI
83AQI
58AQI
70AQI
56AQI
53AQI
41AQI
68AQI
63AQI
58AQI
43AQI
65AQI
71AQI
61AQI
62AQI
52AQI
50AQI
48AQI
52AQI
45AQI
55AQI
66AQI
51AQI
60AQI
71AQI
74AQI
75AQI
76AQI
62AQI
54AQI
46AQI
58AQI
61AQI
42AQI
53AQI
54AQI
63AQI
49AQI
52AQI
67AQI
85AQI
90AQI
86AQI
86AQI
92AQI
99AQI
105AQI
78AQI
62AQI
59AQI
62AQI
71AQI
62AQI
66AQI
62AQI
56AQI
64AQI
76AQI
64AQI
61AQI
65AQI
65AQI
67AQI
68AQI
51AQI
59AQI
59AQI
65AQI
62AQI
51AQI
60AQI
68AQI
67AQI
51AQI
50AQI
48AQI
46AQI
54AQI
52AQI
51AQI
54AQI
63AQI
67AQI
57AQI
53AQI
52AQI
53AQI
65AQI
61AQI
47AQI
55AQI
43AQI
47AQI
37AQI
42AQI
41AQI
43AQI
50AQI
55AQI
63AQI
50AQI
47AQI
64AQI
69AQI
62AQI
61AQI
57AQI
61AQI
60AQI
51AQI
51AQI
47AQI
49AQI
58AQI
57AQI
56AQI
58AQI
47AQI
40AQI
40AQI
38AQI
37AQI
41AQI
51AQI
45AQI
47AQI
48AQI
47AQI
49AQI
51AQI
47AQI
43AQI
50AQI
52AQI
46AQI
43AQI
47AQI
40AQI
47AQI
50AQI
43AQI
40AQI
38AQI
40AQI
48AQI
51AQI
49AQI
50AQI
47AQI
38AQI
41AQI
49AQI
50AQI
82AQI
63AQI
85AQI
69AQI
62AQI
65AQI
53AQI
49AQI
45AQI
No. of days
202565AQI
Highest AQI recorded in
March85AQI
Lowest AQI recorded in
September45AQI
202469AQI
Highest AQI recorded in
April86AQI
Lowest AQI recorded in
September46AQI
202376AQI
Highest AQI recorded in
February102AQI
Lowest AQI recorded in
September58AQI
202276AQI
Highest AQI recorded in
January93AQI
Lowest AQI recorded in
August51AQI
202174AQI
Highest AQI recorded in
March105AQI
Lowest AQI recorded in
September41AQI
202069AQI
Highest AQI recorded in
December87AQI
Lowest AQI recorded in
August49AQI
Most & Least Polluted Years Over the Last 6 Years
Pyeongtaek's annual 2025 AQI (65) shows an average percentage change of -10.9% (improved AQI) compared to previous years: 2020 (69), 2021 (74), 2022 (76), 2023 (76), 2024 (69).