Jillyang eup, Gyeongsan, Gyeongbuk, 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
Jillyang eup, Gyeongsan, Gyeongbuk, South Korea
AQI Trends: Highest and Lowest
Same Day Analysis (30th September ):
On this day, AQI across the 4 years varied significantly: 2025 ranks 3rd highest AQI at 49 of Good air quality, showing improvement over 2023 and 2022 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 30th Sep - 1st Oct 2025
Jillyang eup, Gyeongsan, Gyeongbuk, South Korea
6 AM30th Sep 2025
6 PM
5 AM1st Oct 2025
AQI
AQI
69AQI
35AQI
In the last 24 hours,
Jillyang eup's AQI reached its highest point of 69 at 3 AM during the Night, while the lowest point, 35, was recorded at 7 AM during the Night between 30th Sep and 1st Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Jillyang eup, Gyeongsan, Gyeongbuk, South Korea
27°C22/33°C
26°C21/32°C
24°C19/30°C
24°C19/30°C
25°C20/32°C
26°C20/33°C
25°C22/30°C
23°C18/31°C
19°C16/22°C
20°C17/26°C
21°C16/27°C
21°C18/25°C
22°C17/28°C
22°C18/28°C
24°C19/31°C
24°C19/32°C
24°C21/30°C
19°C15/22°C
18°C15/21°C
18°C15/24°C
18°C13/23°C
17°C13/24°C
18°C13/25°C
21°C15/28°C
21°C20/23°C
21°C16/28°C
19°C15/26°C
19°C16/24°C
18°C13/24°C
--°C/°C
--°C/°C
42AQI
38AQI
42AQI
39AQI
2025 Days Vs Air Quality
Jillyang eup, Gyeongsan, Gyeongbuk, South Korea
35%
95
63%
173
2%
5
Total number of days with different AQI categories in last 273 days in 2025 (92 days remaining)
Under WHO’s Safe Air Quality Limits: 35%
Health Risk Level:
High
In 2025, 35% of 273 days were within WHO’s safe air quality limits. The risk of health issues is High, with respiratory problems, heart disease, skin issues, and stress being more common, particularly among children and the elderly.
Annual Air Quality Insights
Jillyang eup, Gyeongsan, Gyeongbuk, South Korea
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
58AQI
70AQI
50AQI
48AQI
67AQI
89AQI
54AQI
59AQI
38AQI
46AQI
53AQI
66AQI
85AQI
88AQI
56AQI
63AQI
82AQI
84AQI
80AQI
115AQI
130AQI
141AQI
118AQI
97AQI
70AQI
57AQI
61AQI
43AQI
49AQI
57AQI
71AQI
70AQI
71AQI
58AQI
45AQI
43AQI
43AQI
48AQI
39AQI
45AQI
50AQI
71AQI
79AQI
47AQI
75AQI
57AQI
89AQI
42AQI
50AQI
41AQI
47AQI
47AQI
51AQI
52AQI
52AQI
51AQI
76AQI
75AQI
65AQI
87AQI
84AQI
52AQI
46AQI
40AQI
39AQI
53AQI
56AQI
72AQI
75AQI
88AQI
80AQI
66AQI
56AQI
48AQI
54AQI
59AQI
60AQI
77AQI
74AQI
75AQI
73AQI
83AQI
87AQI
114AQI
81AQI
83AQI
77AQI
55AQI
50AQI
66AQI
67AQI
60AQI
59AQI
67AQI
61AQI
60AQI
58AQI
69AQI
75AQI
79AQI
72AQI
69AQI
59AQI
55AQI
49AQI
64AQI
63AQI
80AQI
58AQI
58AQI
58AQI
56AQI
41AQI
63AQI
58AQI
55AQI
52AQI
58AQI
58AQI
71AQI
53AQI
49AQI
50AQI
45AQI
50AQI
50AQI
54AQI
60AQI
47AQI
35AQI
54AQI
58AQI
75AQI
73AQI
64AQI
61AQI
57AQI
56AQI
60AQI
61AQI
54AQI
59AQI
61AQI
43AQI
47AQI
58AQI
65AQI
79AQI
69AQI
57AQI
56AQI
67AQI
86AQI
70AQI
52AQI
51AQI
65AQI
64AQI
71AQI
68AQI
65AQI
52AQI
62AQI
68AQI
54AQI
61AQI
57AQI
60AQI
64AQI
65AQI
51AQI
49AQI
41AQI
48AQI
49AQI
48AQI
53AQI
57AQI
63AQI
58AQI
53AQI
54AQI
52AQI
57AQI
58AQI
55AQI
54AQI
60AQI
59AQI
53AQI
52AQI
53AQI
54AQI
55AQI
52AQI
49AQI
54AQI
52AQI
47AQI
39AQI
44AQI
43AQI
46AQI
54AQI
60AQI
52AQI
49AQI
45AQI
46AQI
51AQI
52AQI
53AQI
54AQI
60AQI
62AQI
54AQI
52AQI
50AQI
49AQI
54AQI
59AQI
49AQI
52AQI
43AQI
39AQI
41AQI
41AQI
41AQI
42AQI
50AQI
51AQI
47AQI
48AQI
51AQI
51AQI
55AQI
52AQI
44AQI
48AQI
51AQI
49AQI
49AQI
50AQI
39AQI
44AQI
48AQI
41AQI
33AQI
37AQI
37AQI
45AQI
41AQI
41AQI
40AQI
39AQI
34AQI
39AQI
47AQI
49AQI
39AQI
35AQI
33AQI
32AQI
30AQI
30AQI
30AQI
38AQI
32AQI
46AQI
59AQI
50AQI
40AQI
49AQI
72AQI
56AQI
68AQI
62AQI
57AQI
59AQI
52AQI
50AQI
40AQI
No. of days
202557AQI
Highest AQI recorded in
January72AQI
Lowest AQI recorded in
September40AQI
202459AQI
Highest AQI recorded in
April79AQI
Lowest AQI recorded in
July38AQI
202366AQI
Highest AQI recorded in
February90AQI
Lowest AQI recorded in
September48AQI
202262AQI
Highest AQI recorded in
November79AQI
Lowest AQI recorded in
October49AQI
Most & Least Polluted Years Over the Last 4 Years
Jillyang eup's annual 2025 AQI (57) shows an average percentage change of -7.8% (improved AQI) compared to previous years: 2022 (62), 2023 (66), 2024 (59).