Salmi Myeon, Chungju, Chungbuk, 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
Salmi Myeon, Chungju, Chungbuk, South Korea
AQI Trends: Highest and Lowest
Same Day Analysis (25th September ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 27 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: 26th Sep - 27th Sep 2025
Salmi Myeon, Chungju, Chungbuk, South Korea
6 AM26th Sep 2025
6 PM
5 AM27th Sep 2025
55AQI
33AQI
57AQI
39AQI
In the last 24 hours,
Salmi Myeon's AQI reached its highest point of 57 at 10 PM during the Night, while the lowest point, 33, was recorded at 12 PM during the Day between 26th Sep and 27th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Salmi Myeon, Chungju, Chungbuk, South Korea
25°C20/31°C
26°C23/31°C
26°C23/31°C
26°C22/32°C
25°C21/31°C
23°C21/28°C
25°C19/32°C
22°C20/24°C
25°C19/32°C
25°C21/29°C
24°C20/28°C
22°C18/29°C
21°C18/24°C
22°C17/30°C
22°C16/31°C
21°C18/26°C
22°C20/25°C
22°C19/27°C
23°C18/29°C
23°C19/28°C
22°C20/25°C
19°C16/21°C
16°C14/18°C
16°C14/19°C
19°C14/25°C
18°C12/24°C
19°C16/25°C
21°C16/27°C
20°C18/21°C
19°C15/26°C
--°C/°C
42AQI
32AQI
42AQI
35AQI
2025 Days Vs Air Quality
Salmi Myeon, Chungju, Chungbuk, South Korea
40%
107
57%
154
3%
7
Total number of days with different AQI categories in last 270 days in 2025 (95 days remaining)
Under WHO’s Safe Air Quality Limits: 40%
Health Risk Level:
Significant
In 2025, 40% of 270 days were within WHO’s safe air quality limits, and 60% exceeded them. The risk of health issues is Significant, especially for those with existing respiratory or heart conditions.
Annual Air Quality Insights
Salmi Myeon, Chungju, Chungbuk, South Korea
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
70AQI
74AQI
59AQI
63AQI
68AQI
98AQI
65AQI
74AQI
47AQI
64AQI
62AQI
78AQI
91AQI
92AQI
62AQI
69AQI
80AQI
96AQI
85AQI
106AQI
135AQI
130AQI
121AQI
109AQI
79AQI
67AQI
70AQI
64AQI
63AQI
61AQI
77AQI
87AQI
80AQI
68AQI
54AQI
52AQI
51AQI
57AQI
52AQI
55AQI
62AQI
67AQI
71AQI
52AQI
78AQI
56AQI
95AQI
54AQI
62AQI
51AQI
56AQI
55AQI
56AQI
55AQI
57AQI
56AQI
79AQI
57AQI
76AQI
82AQI
70AQI
52AQI
46AQI
43AQI
57AQI
67AQI
67AQI
76AQI
78AQI
88AQI
87AQI
82AQI
71AQI
49AQI
69AQI
60AQI
61AQI
76AQI
74AQI
84AQI
85AQI
92AQI
93AQI
120AQI
83AQI
102AQI
80AQI
61AQI
55AQI
60AQI
64AQI
66AQI
71AQI
74AQI
60AQI
67AQI
61AQI
77AQI
66AQI
76AQI
70AQI
56AQI
58AQI
47AQI
54AQI
60AQI
62AQI
74AQI
57AQI
56AQI
40AQI
39AQI
27AQI
52AQI
64AQI
52AQI
43AQI
44AQI
61AQI
54AQI
48AQI
52AQI
45AQI
44AQI
44AQI
39AQI
49AQI
63AQI
44AQI
40AQI
59AQI
61AQI
67AQI
65AQI
56AQI
50AQI
45AQI
56AQI
56AQI
49AQI
47AQI
48AQI
58AQI
42AQI
44AQI
55AQI
62AQI
72AQI
66AQI
53AQI
58AQI
65AQI
80AQI
74AQI
50AQI
54AQI
57AQI
63AQI
61AQI
62AQI
62AQI
55AQI
56AQI
57AQI
43AQI
52AQI
55AQI
59AQI
63AQI
63AQI
47AQI
39AQI
33AQI
50AQI
50AQI
39AQI
49AQI
57AQI
59AQI
50AQI
42AQI
42AQI
40AQI
50AQI
53AQI
50AQI
54AQI
60AQI
62AQI
56AQI
52AQI
47AQI
45AQI
51AQI
44AQI
37AQI
48AQI
35AQI
37AQI
30AQI
37AQI
41AQI
35AQI
41AQI
48AQI
47AQI
41AQI
37AQI
45AQI
51AQI
49AQI
48AQI
54AQI
59AQI
60AQI
49AQI
51AQI
44AQI
48AQI
51AQI
49AQI
43AQI
51AQI
42AQI
39AQI
38AQI
41AQI
41AQI
40AQI
50AQI
45AQI
45AQI
46AQI
48AQI
50AQI
51AQI
51AQI
43AQI
45AQI
49AQI
46AQI
43AQI
45AQI
38AQI
45AQI
44AQI
37AQI
34AQI
36AQI
39AQI
44AQI
47AQI
45AQI
45AQI
42AQI
39AQI
43AQI
47AQI
42AQI
33AQI
29AQI
28AQI
26AQI
24AQI
25AQI
25AQI
27AQI
27AQI
80AQI
63AQI
73AQI
58AQI
53AQI
55AQI
46AQI
47AQI
36AQI
No. of days
202557AQI
Highest AQI recorded in
January80AQI
Lowest AQI recorded in
September36AQI
202454AQI
Highest AQI recorded in
January70AQI
Lowest AQI recorded in
September34AQI
202363AQI
Highest AQI recorded in
February88AQI
Lowest AQI recorded in
September43AQI
202265AQI
Highest AQI recorded in
January88AQI
Lowest AQI recorded in
September39AQI
202159AQI
Highest AQI recorded in
February80AQI
Lowest AQI recorded in
September32AQI
202059AQI
Highest AQI recorded in
December87AQI
Lowest AQI recorded in
July38AQI
Most & Least Polluted Years Over the Last 6 Years
Salmi Myeon's annual 2025 AQI (57) shows an average percentage change of -4.3% (improved AQI) compared to previous years: 2020 (59), 2021 (59), 2022 (65), 2023 (63), 2024 (54).