Yeonghae myeon, Ulchin, Gyeongbuk, 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
Yeonghae myeon, Ulchin, Gyeongbuk, South Korea
AQI Trends: Highest and Lowest
Same Day Analysis (3rd October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 72 of Moderate air quality, showing improvement over 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 3rd Oct - 4th Oct 2025
Yeonghae myeon, Ulchin, Gyeongbuk, South Korea
6 AM3rd Oct 2025
6 PM
5 AM4th Oct 2025
91AQI
35AQI
44AQI
26AQI
In the last 24 hours,
Yeonghae myeon's AQI reached its highest point of 91 at 11 AM during the Day, while the lowest point, 26, was recorded at 8 PM during the Night between 3rd Oct and 4th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Yeonghae myeon, Ulchin, Gyeongbuk, South Korea
24°C23/27°C
25°C23/27°C
27°C23/30°C
26°C24/29°C
24°C21/28°C
21°C19/24°C
22°C20/24°C
23°C20/25°C
23°C22/24°C
22°C21/25°C
23°C20/26°C
24°C22/28°C
26°C23/30°C
25°C21/29°C
21°C20/22°C
20°C20/21°C
20°C19/22°C
20°C18/22°C
20°C19/22°C
20°C19/23°C
23°C20/26°C
23°C22/24°C
22°C19/24°C
21°C20/24°C
21°C20/23°C
20°C19/21°C
20°C18/23°C
20°C17/24°C
21°C19/23°C
20°C19/21°C
--°C/°C
40AQI
35AQI
40AQI
37AQI
2025 Days Vs Air Quality
Yeonghae myeon, Ulchin, Gyeongbuk, South Korea
49%
134
50%
137
2%
5
Total number of days with different AQI categories in last 277 days in 2025 (88 days remaining)
Under WHO’s Safe Air Quality Limits: 49%
Health Risk Level:
Significant
In 2025, 49% of 277 days were within WHO’s safe air quality limits, and 51% exceeded them. The risk of health issues is Significant, especially for those with existing respiratory or heart conditions.
Annual Air Quality Insights
Yeonghae myeon, Ulchin, Gyeongbuk, South Korea
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
56AQI
59AQI
47AQI
47AQI
57AQI
76AQI
50AQI
56AQI
41AQI
51AQI
49AQI
57AQI
68AQI
76AQI
48AQI
59AQI
58AQI
68AQI
59AQI
84AQI
110AQI
108AQI
79AQI
76AQI
51AQI
52AQI
50AQI
48AQI
54AQI
62AQI
62AQI
65AQI
51AQI
57AQI
41AQI
44AQI
39AQI
50AQI
39AQI
47AQI
51AQI
59AQI
53AQI
44AQI
63AQI
50AQI
79AQI
48AQI
54AQI
44AQI
49AQI
45AQI
51AQI
51AQI
52AQI
48AQI
71AQI
60AQI
63AQI
57AQI
62AQI
41AQI
43AQI
38AQI
37AQI
46AQI
48AQI
61AQI
54AQI
74AQI
67AQI
56AQI
49AQI
42AQI
47AQI
52AQI
52AQI
68AQI
64AQI
78AQI
71AQI
84AQI
113AQI
134AQI
129AQI
96AQI
82AQI
59AQI
50AQI
58AQI
59AQI
44AQI
44AQI
59AQI
56AQI
58AQI
57AQI
72AQI
67AQI
70AQI
65AQI
63AQI
60AQI
49AQI
47AQI
59AQI
60AQI
72AQI
59AQI
52AQI
44AQI
48AQI
33AQI
54AQI
68AQI
64AQI
67AQI
63AQI
56AQI
64AQI
55AQI
50AQI
47AQI
46AQI
42AQI
40AQI
48AQI
51AQI
43AQI
33AQI
53AQI
56AQI
64AQI
68AQI
63AQI
57AQI
44AQI
52AQI
59AQI
63AQI
57AQI
60AQI
63AQI
46AQI
48AQI
56AQI
58AQI
57AQI
52AQI
46AQI
44AQI
58AQI
73AQI
58AQI
52AQI
48AQI
57AQI
65AQI
75AQI
69AQI
66AQI
52AQI
59AQI
65AQI
46AQI
62AQI
53AQI
62AQI
63AQI
65AQI
44AQI
39AQI
25AQI
47AQI
47AQI
39AQI
42AQI
50AQI
62AQI
58AQI
49AQI
53AQI
44AQI
56AQI
57AQI
54AQI
56AQI
63AQI
58AQI
53AQI
48AQI
49AQI
46AQI
53AQI
41AQI
39AQI
52AQI
46AQI
42AQI
33AQI
45AQI
43AQI
43AQI
43AQI
50AQI
42AQI
44AQI
36AQI
43AQI
45AQI
48AQI
51AQI
52AQI
57AQI
61AQI
51AQI
50AQI
44AQI
43AQI
45AQI
52AQI
49AQI
48AQI
40AQI
39AQI
39AQI
39AQI
40AQI
40AQI
50AQI
50AQI
50AQI
52AQI
55AQI
51AQI
53AQI
50AQI
44AQI
43AQI
45AQI
46AQI
45AQI
48AQI
39AQI
44AQI
41AQI
35AQI
34AQI
36AQI
38AQI
44AQI
44AQI
42AQI
45AQI
41AQI
37AQI
34AQI
41AQI
46AQI
35AQI
29AQI
29AQI
25AQI
25AQI
26AQI
27AQI
36AQI
22AQI
38AQI
45AQI
27AQI
32AQI
46AQI
52AQI
68AQI
72AQI
62AQI
52AQI
65AQI
58AQI
52AQI
55AQI
48AQI
47AQI
36AQI
64AQI
No. of days
202553AQI
Highest AQI recorded in
March65AQI
Lowest AQI recorded in
September36AQI
202450AQI
Highest AQI recorded in
April67AQI
Lowest AQI recorded in
July35AQI
202356AQI
Highest AQI recorded in
April68AQI
Lowest AQI recorded in
September39AQI
202254AQI
Highest AQI recorded in
February65AQI
Lowest AQI recorded in
August35AQI
202150AQI
Highest AQI recorded in
April62AQI
Lowest AQI recorded in
September36AQI
Most & Least Polluted Years Over the Last 5 Years
Yeonghae myeon's annual 2025 AQI (53) shows an average percentage change of 1.4% (worsened AQI) compared to previous years: 2021 (50), 2022 (54), 2023 (56), 2024 (50).