Naeseo eup, Masan, Gyeongnam, 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
Naeseo eup, Masan, Gyeongnam, South Korea
AQI Trends: Highest and Lowest
Same Day Analysis (1st October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 46 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: 2nd Oct - 3rd Oct 2025
Naeseo eup, Masan, Gyeongnam, South Korea
6 AM2nd Oct 2025
6 PM
5 AM3rd Oct 2025
AQI
AQI
81AQI
42AQI
In the last 24 hours,
Naeseo eup's AQI reached its highest point of 81 at 11 PM during the Night, while the lowest point, 42, was recorded at 6 AM during the Night between 2nd Oct and 3rd Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Naeseo eup, Masan, Gyeongnam, South Korea
26°C22/31°C
26°C23/32°C
26°C23/31°C
27°C23/32°C
26°C24/31°C
25°C22/30°C
22°C20/27°C
23°C20/27°C
23°C20/28°C
23°C21/27°C
25°C23/29°C
25°C22/28°C
25°C22/31°C
26°C22/31°C
26°C23/31°C
23°C21/26°C
22°C20/25°C
22°C20/26°C
21°C17/25°C
20°C16/26°C
21°C17/25°C
23°C19/28°C
22°C21/24°C
23°C20/28°C
23°C21/27°C
22°C20/26°C
21°C19/26°C
20°C17/24°C
20°C16/26°C
--°C/°C
--°C/°C
40AQI
36AQI
38AQI
36AQI
2025 Days Vs Air Quality
Naeseo eup, Masan, Gyeongnam, South Korea
43%
117
55%
152
2%
5
Total number of days with different AQI categories in last 275 days in 2025 (90 days remaining)
Under WHO’s Safe Air Quality Limits: 43%
Health Risk Level:
Significant
In 2025, 43% of 275 days were within WHO’s safe air quality limits, and 57% exceeded them. The risk of health issues is Significant, especially for those with existing respiratory or heart conditions.
Annual Air Quality Insights
Naeseo eup, Masan, Gyeongnam, South Korea
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
56AQI
69AQI
52AQI
50AQI
59AQI
83AQI
47AQI
60AQI
39AQI
50AQI
51AQI
59AQI
77AQI
94AQI
54AQI
64AQI
73AQI
88AQI
85AQI
103AQI
119AQI
125AQI
113AQI
98AQI
73AQI
59AQI
61AQI
43AQI
48AQI
54AQI
59AQI
60AQI
61AQI
55AQI
44AQI
43AQI
42AQI
52AQI
38AQI
46AQI
47AQI
63AQI
70AQI
47AQI
68AQI
53AQI
80AQI
49AQI
51AQI
44AQI
48AQI
45AQI
52AQI
49AQI
50AQI
50AQI
79AQI
66AQI
68AQI
72AQI
69AQI
47AQI
41AQI
38AQI
46AQI
52AQI
55AQI
70AQI
64AQI
74AQI
68AQI
62AQI
58AQI
40AQI
52AQI
58AQI
61AQI
77AQI
73AQI
77AQI
83AQI
92AQI
82AQI
117AQI
78AQI
78AQI
76AQI
52AQI
50AQI
63AQI
64AQI
57AQI
59AQI
60AQI
59AQI
56AQI
57AQI
66AQI
74AQI
72AQI
72AQI
64AQI
60AQI
56AQI
46AQI
59AQI
63AQI
66AQI
46AQI
56AQI
52AQI
41AQI
40AQI
57AQI
60AQI
52AQI
53AQI
49AQI
61AQI
59AQI
48AQI
48AQI
52AQI
47AQI
51AQI
51AQI
53AQI
53AQI
41AQI
37AQI
55AQI
59AQI
70AQI
69AQI
61AQI
56AQI
59AQI
58AQI
58AQI
43AQI
41AQI
59AQI
56AQI
44AQI
43AQI
54AQI
63AQI
69AQI
65AQI
63AQI
61AQI
73AQI
71AQI
68AQI
49AQI
52AQI
58AQI
52AQI
60AQI
59AQI
64AQI
50AQI
59AQI
59AQI
44AQI
50AQI
45AQI
49AQI
58AQI
54AQI
45AQI
41AQI
30AQI
40AQI
40AQI
39AQI
50AQI
57AQI
54AQI
55AQI
48AQI
49AQI
54AQI
59AQI
58AQI
52AQI
51AQI
58AQI
61AQI
55AQI
54AQI
55AQI
55AQI
56AQI
51AQI
52AQI
52AQI
49AQI
46AQI
40AQI
45AQI
40AQI
49AQI
57AQI
58AQI
48AQI
44AQI
41AQI
43AQI
42AQI
42AQI
46AQI
53AQI
59AQI
59AQI
56AQI
51AQI
50AQI
49AQI
51AQI
49AQI
43AQI
50AQI
43AQI
39AQI
42AQI
44AQI
43AQI
43AQI
50AQI
51AQI
47AQI
47AQI
51AQI
52AQI
54AQI
53AQI
46AQI
48AQI
52AQI
50AQI
49AQI
51AQI
40AQI
43AQI
48AQI
40AQI
36AQI
37AQI
36AQI
45AQI
41AQI
40AQI
39AQI
39AQI
36AQI
40AQI
47AQI
44AQI
38AQI
33AQI
32AQI
30AQI
30AQI
28AQI
28AQI
34AQI
28AQI
31AQI
35AQI
21AQI
28AQI
40AQI
46AQI
70AQI
54AQI
65AQI
58AQI
54AQI
52AQI
50AQI
49AQI
36AQI
46AQI
No. of days
202554AQI
Highest AQI recorded in
January70AQI
Lowest AQI recorded in
September36AQI
202453AQI
Highest AQI recorded in
April67AQI
Lowest AQI recorded in
July36AQI
202357AQI
Highest AQI recorded in
February72AQI
Lowest AQI recorded in
September40AQI
202252AQI
Highest AQI recorded in
January75AQI
Lowest AQI recorded in
August13AQI
202148AQI
Highest AQI recorded in
April69AQI
Lowest AQI recorded in
September35AQI
Most & Least Polluted Years Over the Last 5 Years
Naeseo eup's annual 2025 AQI (54) shows an average percentage change of 3.9% (worsened AQI) compared to previous years: 2021 (48), 2022 (52), 2023 (57), 2024 (53).