Pyeongtaekhang, Tangjin, Chungnam, 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
Pyeongtaekhang, Tangjin, Chungnam, 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
Pyeongtaekhang, Tangjin, Chungnam, South Korea
6 AM17th Sep 2025
6 PM
5 AM18th Sep 2025
AQI
AQI
52AQI
18AQI
In the last 24 hours,
Pyeongtaekhang's AQI reached its highest point of 52 at 6 AM during the Night, while the lowest point, 18, was recorded at 5 PM during the Night between 17th Sep and 18th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Pyeongtaekhang, Tangjin, Chungnam, 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
46AQI
2025 Days Vs Air Quality
Pyeongtaekhang, Tangjin, Chungnam, South Korea
18%
47
74%
191
8%
21
Total number of days with different AQI categories in last 260 days in 2025 (105 days remaining)
Under WHO’s Safe Air Quality Limits: 18%
Health Risk Level:
Extreme
In 2025, 18% of 260 days were within WHO’s safe air quality limits. The risk of health issues is Extreme, potentially causing respiratory problems, heart disease, skin issues, and stress, especially for children, the elderly, and those with pre-existing conditions.
Annual Air Quality Insights
Pyeongtaekhang, Tangjin, Chungnam, South Korea
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
78AQI
64AQI
65AQI
66AQI
66AQI
89AQI
57AQI
68AQI
43AQI
60AQI
60AQI
79AQI
91AQI
102AQI
57AQI
77AQI
77AQI
85AQI
84AQI
131AQI
134AQI
144AQI
121AQI
128AQI
81AQI
68AQI
69AQI
58AQI
58AQI
54AQI
77AQI
85AQI
103AQI
58AQI
57AQI
47AQI
59AQI
50AQI
45AQI
54AQI
57AQI
83AQI
76AQI
60AQI
91AQI
63AQI
119AQI
52AQI
68AQI
47AQI
59AQI
56AQI
59AQI
56AQI
58AQI
59AQI
71AQI
67AQI
85AQI
106AQI
82AQI
60AQI
50AQI
42AQI
81AQI
89AQI
92AQI
111AQI
120AQI
117AQI
114AQI
108AQI
89AQI
70AQI
79AQI
69AQI
80AQI
85AQI
100AQI
104AQI
112AQI
118AQI
119AQI
143AQI
103AQI
98AQI
68AQI
57AQI
54AQI
67AQI
80AQI
92AQI
97AQI
94AQI
88AQI
76AQI
80AQI
85AQI
81AQI
82AQI
91AQI
73AQI
72AQI
52AQI
66AQI
66AQI
77AQI
82AQI
62AQI
73AQI
62AQI
60AQI
52AQI
74AQI
62AQI
63AQI
52AQI
66AQI
75AQI
66AQI
67AQI
59AQI
55AQI
51AQI
56AQI
53AQI
59AQI
67AQI
55AQI
68AQI
76AQI
76AQI
81AQI
78AQI
68AQI
63AQI
55AQI
62AQI
65AQI
43AQI
53AQI
56AQI
62AQI
52AQI
54AQI
70AQI
82AQI
89AQI
91AQI
93AQI
101AQI
99AQI
97AQI
76AQI
63AQI
62AQI
62AQI
69AQI
60AQI
66AQI
60AQI
57AQI
65AQI
74AQI
68AQI
63AQI
67AQI
68AQI
69AQI
69AQI
56AQI
58AQI
55AQI
62AQI
62AQI
54AQI
59AQI
66AQI
63AQI
55AQI
51AQI
53AQI
51AQI
57AQI
55AQI
54AQI
54AQI
59AQI
65AQI
56AQI
55AQI
55AQI
54AQI
64AQI
62AQI
52AQI
55AQI
48AQI
51AQI
39AQI
42AQI
44AQI
46AQI
54AQI
58AQI
72AQI
59AQI
50AQI
69AQI
73AQI
72AQI
63AQI
59AQI
62AQI
60AQI
52AQI
51AQI
49AQI
49AQI
62AQI
59AQI
60AQI
63AQI
48AQI
44AQI
40AQI
39AQI
37AQI
40AQI
51AQI
48AQI
49AQI
50AQI
51AQI
51AQI
50AQI
46AQI
42AQI
48AQI
51AQI
45AQI
42AQI
46AQI
39AQI
46AQI
50AQI
45AQI
49AQI
38AQI
41AQI
48AQI
50AQI
50AQI
52AQI
48AQI
40AQI
40AQI
50AQI
47AQI
80AQI
66AQI
90AQI
73AQI
66AQI
65AQI
56AQI
50AQI
46AQI
No. of days
202567AQI
Highest AQI recorded in
March90AQI
Lowest AQI recorded in
September46AQI
202471AQI
Highest AQI recorded in
April84AQI
Lowest AQI recorded in
September41AQI
202375AQI
Highest AQI recorded in
March98AQI
Lowest AQI recorded in
September57AQI
202276AQI
Highest AQI recorded in
November94AQI
Lowest AQI recorded in
August45AQI
202176AQI
Highest AQI recorded in
March115AQI
Lowest AQI recorded in
September44AQI
202067AQI
Highest AQI recorded in
December79AQI
Lowest AQI recorded in
September51AQI
Most & Least Polluted Years Over the Last 6 Years
Pyeongtaekhang's annual 2025 AQI (67) shows an average percentage change of -7.8% (improved AQI) compared to previous years: 2020 (67), 2021 (76), 2022 (76), 2023 (75), 2024 (71).