Source Dong, Anyang, 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
Source Dong, Anyang, Gyeonggi, South Korea
AQI Trends: Highest and Lowest
Same Day Analysis (20th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 46 of Good air quality, showing improvement over 2024 and 2023 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 20th Aug - 21st Aug 2025
Source Dong, Anyang, Gyeonggi, South Korea
5 AM20th Aug 2025
7 PM
4 AM21st Aug 2025
54AQI
38AQI
50AQI
48AQI
In the last 24 hours,
Source Dong's AQI reached its highest point of 54 at 4 PM during the Day, while the lowest point, 38, was recorded at 5 PM during the Day between 20th Aug and 21st Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Source Dong, Anyang, Gyeonggi, South Korea
28°C25/33°C
29°C25/34°C
30°C25/35°C
31°C26/38°C
32°C27/38°C
32°C27/38°C
32°C27/37°C
32°C27/38°C
32°C27/37°C
31°C28/35°C
31°C27/36°C
31°C27/36°C
28°C25/31°C
28°C23/35°C
29°C25/33°C
27°C24/29°C
27°C23/32°C
27°C23/33°C
25°C23/27°C
27°C22/34°C
27°C24/31°C
28°C22/33°C
24°C23/25°C
25°C24/29°C
27°C23/31°C
27°C24/31°C
27°C24/31°C
28°C25/32°C
28°C24/32°C
28°C24/32°C
--°C/°C
50AQI
50AQI
51AQI
51AQI
2025 Days Vs Air Quality
Source Dong, Anyang, Gyeonggi, South Korea
22%
52
72%
166
6%
14
Total number of days with different AQI categories in last 233 days in 2025 (132 days remaining)
Under WHO’s Safe Air Quality Limits: 22%
Health Risk Level:
Very high
In 2025, 22% of 233 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
Source Dong, Anyang, Gyeonggi, South Korea
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
78AQI
55AQI
61AQI
59AQI
71AQI
102AQI
58AQI
74AQI
45AQI
56AQI
60AQI
74AQI
87AQI
97AQI
56AQI
74AQI
80AQI
76AQI
83AQI
131AQI
138AQI
149AQI
112AQI
100AQI
60AQI
51AQI
63AQI
56AQI
56AQI
46AQI
71AQI
77AQI
80AQI
52AQI
49AQI
41AQI
52AQI
44AQI
40AQI
44AQI
54AQI
69AQI
73AQI
49AQI
91AQI
57AQI
110AQI
51AQI
59AQI
46AQI
52AQI
52AQI
54AQI
51AQI
56AQI
56AQI
70AQI
57AQI
76AQI
99AQI
74AQI
55AQI
45AQI
36AQI
72AQI
95AQI
88AQI
107AQI
117AQI
113AQI
99AQI
97AQI
75AQI
61AQI
76AQI
65AQI
73AQI
78AQI
93AQI
108AQI
113AQI
115AQI
125AQI
132AQI
96AQI
98AQI
58AQI
49AQI
44AQI
61AQI
81AQI
83AQI
79AQI
74AQI
67AQI
70AQI
76AQI
83AQI
74AQI
83AQI
95AQI
67AQI
65AQI
48AQI
59AQI
67AQI
73AQI
91AQI
58AQI
69AQI
55AQI
48AQI
37AQI
68AQI
58AQI
58AQI
44AQI
64AQI
65AQI
64AQI
59AQI
54AQI
49AQI
49AQI
53AQI
38AQI
55AQI
67AQI
49AQI
61AQI
74AQI
76AQI
75AQI
74AQI
73AQI
57AQI
54AQI
59AQI
61AQI
43AQI
46AQI
50AQI
65AQI
47AQI
50AQI
66AQI
81AQI
90AQI
81AQI
80AQI
88AQI
89AQI
97AQI
78AQI
56AQI
61AQI
59AQI
69AQI
56AQI
64AQI
55AQI
56AQI
61AQI
75AQI
60AQI
61AQI
66AQI
68AQI
71AQI
65AQI
54AQI
59AQI
64AQI
69AQI
63AQI
56AQI
57AQI
65AQI
65AQI
54AQI
52AQI
47AQI
47AQI
52AQI
51AQI
50AQI
52AQI
63AQI
63AQI
55AQI
52AQI
50AQI
47AQI
58AQI
55AQI
47AQI
52AQI
42AQI
45AQI
39AQI
41AQI
43AQI
39AQI
41AQI
45AQI
54AQI
48AQI
47AQI
62AQI
65AQI
60AQI
60AQI
59AQI
61AQI
61AQI
50AQI
51AQI
46AQI
50AQI
55AQI
55AQI
54AQI
56AQI
53AQI
40AQI
45AQI
42AQI
38AQI
41AQI
51AQI
46AQI
46AQI
77AQI
59AQI
84AQI
67AQI
62AQI
64AQI
51AQI
50AQI
No. of days
202565AQI
Highest AQI recorded in
March84AQI
Lowest AQI recorded in
August50AQI
202465AQI
Highest AQI recorded in
April76AQI
Lowest AQI recorded in
July52AQI
202365AQI
Highest AQI recorded in
March95AQI
Lowest AQI recorded in
July46AQI
202265AQI
Highest AQI recorded in
February78AQI
Lowest AQI recorded in
August27AQI
202162AQI
Highest AQI recorded in
March91AQI
Lowest AQI recorded in
September30AQI
202062AQI
Highest AQI recorded in
June76AQI
Lowest AQI recorded in
August37AQI
Most & Least Polluted Years Over the Last 6 Years
Source Dong's annual 2025 AQI (65) shows an average percentage change of 2.1% (worsened AQI) compared to previous years: 2020 (62), 2021 (62), 2022 (65), 2023 (65), 2024 (65).