Dongtan Dong, Osan, Gyeonggi, South Korea Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
August Air Quality Analysis
Dongtan Dong, Osan, Gyeonggi, South Korea
AQI Trends: Highest and Lowest
Same Day Analysis (16th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 4th highest AQI at 34 of Good air quality, showing improvement over 2025, 2024 and 2023 on the same day.
Day & Night AQI Trend: 16th Aug - 17th Aug 2026
Dongtan Dong, Osan, Gyeonggi, South Korea
5 AM16th Aug 2026
7 PM
4 AM17th Aug 2026
36AQI
23AQI
27AQI
21AQI
In the last 24 hours,
Dongtan Dong's AQI reached its highest point of 36 at 5 AM during the Day, while the lowest point, 21, was recorded at 9 PM during the Night between 16th Aug and 17th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Dongtan Dong, Osan, Gyeonggi, South Korea
24°C23/24°C
25°C24/29°C
25°C23/27°C
26°C24/29°C
26°C24/29°C
27°C23/32°C
27°C25/31°C
27°C24/32°C
28°C25/33°C
27°C25/31°C
27°C24/31°C
27°C24/32°C
28°C24/32°C
29°C25/33°C
29°C25/34°C
30°C25/36°C
30°C27/37°C
30°C26/36°C
31°C27/37°C
32°C27/37°C
31°C26/37°C
27°C23/33°C
28°C24/33°C
28°C23/34°C
26°C21/32°C
27°C23/32°C
27°C24/32°C
25°C23/26°C
24°C23/28°C
13°C13/14°C
34AQI
30AQI
37AQI
35AQI
2026 Days Vs Air Quality
Dongtan Dong, Osan, Gyeonggi, South Korea
50%
112
40%
89
11%
24
Total number of days with different AQI categories in last 229 days in 2026 (136 days remaining)
Under WHO’s Safe Air Quality Limits: 50%
Health Risk Level:
Considerable
In 2026, 50% of 229 days were within WHO’s safe air quality limits, and 50% exceeded them. The risk of health issues is Considerable, with potential for conditions in sensitive individuals.
Annual Air Quality Insights
Dongtan Dong, Osan, Gyeonggi, South Korea
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
36AQI (US)
43AQI (US)
63AQI (US)
76AQI (US)
70AQI (US)
63AQI (US)
62AQI (US)
27AQI (US)
45AQI (US)
69AQI (US)
36AQI (US)
44AQI (US)
46AQI (US)
38AQI (US)
91AQI (US)
138AQI (US)
133AQI (US)
97AQI (US)
71AQI (US)
42AQI (US)
40AQI (US)
36AQI (US)
62AQI (US)
63AQI (US)
31AQI (US)
55AQI (US)
61AQI (US)
35AQI (US)
51AQI (US)
58AQI (US)
64AQI (US)
73AQI (US)
75AQI (US)
66AQI (US)
122AQI (US)
141AQI (US)
64AQI (US)
40AQI (US)
43AQI (US)
50AQI (US)
88AQI (US)
125AQI (US)
120AQI (US)
139AQI (US)
150AQI (US)
116AQI (US)
49AQI (US)
56AQI (US)
52AQI (US)
51AQI (US)
80AQI (US)
96AQI (US)
52AQI (US)
28AQI (US)
35AQI (US)
41AQI (US)
34AQI (US)
24AQI (US)
35AQI (US)
39AQI (US)
19AQI (US)
20AQI (US)
65AQI (US)
95AQI (US)
76AQI (US)
61AQI (US)
61AQI (US)
100AQI (US)
114AQI (US)
95AQI (US)
112AQI (US)
43AQI (US)
50AQI (US)
94AQI (US)
133AQI (US)
136AQI (US)
118AQI (US)
62AQI (US)
70AQI (US)
106AQI (US)
83AQI (US)
121AQI (US)
106AQI (US)
91AQI (US)
116AQI (US)
131AQI (US)
117AQI (US)
94AQI (US)
85AQI (US)
51AQI (US)
50AQI (US)
101AQI (US)
123AQI (US)
56AQI (US)
85AQI (US)
49AQI (US)
31AQI (US)
50AQI (US)
40AQI (US)
47AQI (US)
91AQI (US)
88AQI (US)
85AQI (US)
81AQI (US)
124AQI (US)
49AQI (US)
57AQI (US)
72AQI (US)
76AQI (US)
66AQI (US)
47AQI (US)
42AQI (US)
59AQI (US)
56AQI (US)
59AQI (US)
43AQI (US)
51AQI (US)
57AQI (US)
52AQI (US)
109AQI (US)
48AQI (US)
29AQI (US)
45AQI (US)
34AQI (US)
38AQI (US)
38AQI (US)
36AQI (US)
32AQI (US)
38AQI (US)
50AQI (US)
54AQI (US)
74AQI (US)
78AQI (US)
65AQI (US)
56AQI (US)
53AQI (US)
64AQI (US)
67AQI (US)
77AQI (US)
71AQI (US)
71AQI (US)
65AQI (US)
47AQI (US)
25AQI (US)
36AQI (US)
60AQI (US)
62AQI (US)
46AQI (US)
45AQI (US)
57AQI (US)
75AQI (US)
72AQI (US)
24AQI (US)
37AQI (US)
20AQI (US)
35AQI (US)
39AQI (US)
56AQI (US)
70AQI (US)
52AQI (US)
38AQI (US)
49AQI (US)
46AQI (US)
58AQI (US)
62AQI (US)
43AQI (US)
51AQI (US)
13AQI (US)
16AQI (US)
26AQI (US)
45AQI (US)
13AQI (US)
24AQI (US)
36AQI (US)
58AQI (US)
53AQI (US)
50AQI (US)
43AQI (US)
50AQI (US)
32AQI (US)
24AQI (US)
46AQI (US)
29AQI (US)
34AQI (US)
31AQI (US)
23AQI (US)
19AQI (US)
28AQI (US)
35AQI (US)
54AQI (US)
40AQI (US)
28AQI (US)
43AQI (US)
60AQI (US)
67AQI (US)
32AQI (US)
31AQI (US)
28AQI (US)
31AQI (US)
41AQI (US)
53AQI (US)
44AQI (US)
28AQI (US)
25AQI (US)
27AQI (US)
44AQI (US)
25AQI (US)
24AQI (US)
41AQI (US)
59AQI (US)
37AQI (US)
42AQI (US)
55AQI (US)
26AQI (US)
36AQI (US)
46AQI (US)
23AQI (US)
12AQI (US)
24AQI (US)
27AQI (US)
27AQI (US)
27AQI (US)
29AQI (US)
46AQI (US)
34AQI (US)
60AQI (US)
73AQI (US)
86AQI (US)
66AQI (US)
54AQI (US)
44AQI (US)
36AQI (US)
34AQI (US)
No. of days
202658AQI (US)
Highest AQI (US) recorded in
March86AQI (US)
Lowest AQI (US) recorded in
August34AQI (US)
202564AQI (US)
Highest AQI (US) recorded in
March88AQI (US)
Lowest AQI (US) recorded in
September43AQI (US)
202461AQI (US)
Highest AQI (US) recorded in
March79AQI (US)
Lowest AQI (US) recorded in
September38AQI (US)
202367AQI (US)
Highest AQI (US) recorded in
March94AQI (US)
Lowest AQI (US) recorded in
August45AQI (US)
202266AQI (US)
Highest AQI (US) recorded in
February81AQI (US)
Lowest AQI (US) recorded in
August20AQI (US)
202165AQI (US)
Highest AQI (US) recorded in
March96AQI (US)
Lowest AQI (US) recorded in
September33AQI (US)
202070AQI (US)
Highest AQI (US) recorded in
June86AQI (US)
Lowest AQI (US) recorded in
September54AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Dongtan Dong's annual 2026 AQI (US) (58) shows an average percentage change of -11.2% (improved AQI (US)) compared to previous years: 2020 (70), 2021 (65), 2022 (66), 2023 (67), 2024 (61), 2025 (64).