Seongyeon Myeon, Sosan, Chungnam, South Korea Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+
September Air Quality Analysis
Seongyeon Myeon, Sosan, Chungnam, South Korea
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
30th Sep 2022
100AQILowest AQI recorded on
15th Sep 2023
22AQISame Day Analysis (28th September ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 50 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: 29th Sep - 30th Sep 2025
Seongyeon Myeon, Sosan, Chungnam, South Korea
AQI
Day
Night
.
6 AM29th Sep 2025
6 PM
5 AM30th Sep 2025
Day time
Avg. Highest Time
10AM29th Sep
45AQI
Avg. Lowest Time
2PM29th Sep
6AQI
Night time
Avg. Highest Time
11PM29th Sep
47AQI
Avg. Lowest Time
7PM29th Sep
19AQI
In the last 24 hours,
Seongyeon Myeon's AQI reached its highest point of 47 at 11 PM during the Night, while the lowest point, 6, was recorded at 2 PM during the Day between 29th Sep and 30th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Seongyeon Myeon, Sosan, Chungnam, South Korea
AugSep
31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th
Day
Night
31st Aug 2025486 AMAQI
31st Aug 2025487 AMAQI
31st Aug 2025498 AMAQI
31st Aug 2025409 AMAQI
31st Aug 20253210 AMAQI
31st Aug 20254311 AMAQI
31st Aug 20254512 PMAQI
31st Aug 2025521 PMAQI
31st Aug 2025552 PMAQI
31st Aug 2025503 PMAQI
31st Aug 2025474 PMAQI
31st Aug 2025445 PMAQI
31st Aug 2025486 PMAQI
31st Aug 2025407 PMAQI
31st Aug 2025508 PMAQI
31st Aug 2025489 PMAQI
31st Aug 20254910 PMAQI
31st Aug 20254611 PMAQI
1st Sep 20254712 AMAQI
1st Sep 2025481 AMAQI
1st Sep 2025482 AMAQI
1st Sep 2025503 AMAQI
1st Sep 2025504 AMAQI
1st Sep 2025515 AMAQI
27°C24/30°C
1st Sep 2025506 AMAQI
1st Sep 2025507 AMAQI
1st Sep 2025518 AMAQI
1st Sep 2025329 AMAQI
1st Sep 20252810 AMAQI
1st Sep 20251811 AMAQI
1st Sep 20252312 PMAQI
1st Sep 2025291 PMAQI
1st Sep 2025392 PMAQI
1st Sep 2025383 PMAQI
1st Sep 2025354 PMAQI
1st Sep 2025355 PMAQI
1st Sep 2025376 PMAQI
1st Sep 2025407 PMAQI
1st Sep 2025368 PMAQI
1st Sep 2025439 PMAQI
1st Sep 20254410 PMAQI
1st Sep 20254111 PMAQI
2nd Sep 20254812 AMAQI
2nd Sep 2025521 AMAQI
2nd Sep 2025492 AMAQI
2nd Sep 2025493 AMAQI
2nd Sep 2025474 AMAQI
2nd Sep 2025465 AMAQI
26°C23/28°C
2nd Sep 2025466 AMAQI
2nd Sep 2025467 AMAQI
2nd Sep 2025448 AMAQI
2nd Sep 2025609 AMAQI
2nd Sep 20255510 AMAQI
2nd Sep 20255611 AMAQI
2nd Sep 20255612 PMAQI
2nd Sep 2025501 PMAQI
2nd Sep 2025482 PMAQI
2nd Sep 2025403 PMAQI
2nd Sep 2025394 PMAQI
2nd Sep 2025465 PMAQI
2nd Sep 2025486 PMAQI
2nd Sep 2025537 PMAQI
2nd Sep 2025488 PMAQI
2nd Sep 2025499 PMAQI
2nd Sep 20255310 PMAQI
2nd Sep 20255211 PMAQI
3rd Sep 20255412 AMAQI
3rd Sep 2025481 AMAQI
3rd Sep 2025482 AMAQI
3rd Sep 2025483 AMAQI
3rd Sep 2025494 AMAQI
3rd Sep 2025485 AMAQI
24°C21/28°C
3rd Sep 2025466 AMAQI
3rd Sep 2025497 AMAQI
3rd Sep 2025498 AMAQI
3rd Sep 2025529 AMAQI
3rd Sep 20255510 AMAQI
3rd Sep 20256011 AMAQI
3rd Sep 20255712 PMAQI
3rd Sep 2025511 PMAQI
3rd Sep 2025522 PMAQI
3rd Sep 2025493 PMAQI
3rd Sep 2025454 PMAQI
3rd Sep 2025465 PMAQI
3rd Sep 2025576 PMAQI
3rd Sep 2025577 PMAQI
3rd Sep 2025538 PMAQI
3rd Sep 2025529 PMAQI
3rd Sep 20255210 PMAQI
3rd Sep 20255411 PMAQI
4th Sep 20255312 AMAQI
4th Sep 2025481 AMAQI
4th Sep 2025512 AMAQI
4th Sep 2025503 AMAQI
4th Sep 2025514 AMAQI
4th Sep 2025525 AMAQI
25°C20/30°C
4th Sep 2025526 AMAQI
4th Sep 2025527 AMAQI
4th Sep 2025518 AMAQI
4th Sep 2025389 AMAQI
4th Sep 20254410 AMAQI
4th Sep 20255011 AMAQI
4th Sep 20254612 PMAQI
4th Sep 2025511 PMAQI
4th Sep 2025452 PMAQI
4th Sep 2025413 PMAQI
4th Sep 2025464 PMAQI
4th Sep 2025545 PMAQI
4th Sep 2025466 PMAQI
4th Sep 2025407 PMAQI
4th Sep 2025368 PMAQI
4th Sep 2025289 PMAQI
4th Sep 20254410 PMAQI
4th Sep 20254211 PMAQI
5th Sep 20253912 AMAQI
5th Sep 2025381 AMAQI
5th Sep 2025522 AMAQI
5th Sep 2025513 AMAQI
5th Sep 2025514 AMAQI
5th Sep 2025495 AMAQI
23°C22/25°C
5th Sep 2025516 AMAQI
5th Sep 2025487 AMAQI
5th Sep 2025488 AMAQI
5th Sep 2025409 AMAQI
5th Sep 20254510 AMAQI
5th Sep 20253611 AMAQI
5th Sep 20253812 PMAQI
5th Sep 2025341 PMAQI
5th Sep 2025342 PMAQI
5th Sep 2025463 PMAQI
5th Sep 2025514 PMAQI
5th Sep 2025445 PMAQI
5th Sep 2025416 PMAQI
5th Sep 2025467 PMAQI
5th Sep 2025478 PMAQI
5th Sep 2025489 PMAQI
5th Sep 20255010 PMAQI
5th Sep 20255011 PMAQI
6th Sep 20254112 AMAQI
6th Sep 2025431 AMAQI
6th Sep 2025422 AMAQI
6th Sep 2025423 AMAQI
6th Sep 2025414 AMAQI
6th Sep 2025435 AMAQI
26°C22/30°C
6th Sep 2025466 AMAQI
6th Sep 2025477 AMAQI
6th Sep 2025438 AMAQI
6th Sep 2025459 AMAQI
6th Sep 20254810 AMAQI
6th Sep 20254411 AMAQI
6th Sep 20254212 PMAQI
6th Sep 2025281 PMAQI
6th Sep 2025252 PMAQI
6th Sep 2025223 PMAQI
6th Sep 2025294 PMAQI
6th Sep 2025245 PMAQI
6th Sep 2025366 PMAQI
6th Sep 2025297 PMAQI
6th Sep 2025408 PMAQI
6th Sep 2025389 PMAQI
6th Sep 20254310 PMAQI
6th Sep 20253211 PMAQI
7th Sep 20253712 AMAQI
7th Sep 2025421 AMAQI
7th Sep 2025432 AMAQI
7th Sep 2025443 AMAQI
7th Sep 2025424 AMAQI
7th Sep 2025425 AMAQI
26°C24/29°C
7th Sep 2025436 AMAQI
7th Sep 2025437 AMAQI
7th Sep 2025428 AMAQI
7th Sep 2025409 AMAQI
7th Sep 20254610 AMAQI
7th Sep 20253411 AMAQI
7th Sep 20253812 PMAQI
7th Sep 2025361 PMAQI
7th Sep 2025482 PMAQI
7th Sep 2025393 PMAQI
7th Sep 2025364 PMAQI
7th Sep 2025405 PMAQI
7th Sep 2025406 PMAQI
7th Sep 2025557 PMAQI
7th Sep 2025438 PMAQI
7th Sep 2025459 PMAQI
7th Sep 20254810 PMAQI
7th Sep 20254311 PMAQI
8th Sep 20254212 AMAQI
8th Sep 2025421 AMAQI
8th Sep 2025402 AMAQI
8th Sep 2025413 AMAQI
8th Sep 2025414 AMAQI
8th Sep 2025405 AMAQI
25°C21/28°C
8th Sep 2025426 AMAQI
8th Sep 2025427 AMAQI
8th Sep 2025438 AMAQI
8th Sep 2025559 AMAQI
8th Sep 20255710 AMAQI
8th Sep 20255211 AMAQI
8th Sep 20255812 PMAQI
8th Sep 2025531 PMAQI
8th Sep 2025552 PMAQI
8th Sep 2025523 PMAQI
8th Sep 2025554 PMAQI
8th Sep 2025565 PMAQI
8th Sep 2025546 PMAQI
8th Sep 2025607 PMAQI
8th Sep 2025558 PMAQI
8th Sep 2025559 PMAQI
8th Sep 20255410 PMAQI
8th Sep 20255611 PMAQI
9th Sep 20254912 AMAQI
9th Sep 2025421 AMAQI
9th Sep 2025412 AMAQI
9th Sep 2025423 AMAQI
9th Sep 2025414 AMAQI
9th Sep 2025425 AMAQI
23°C20/28°C
9th Sep 2025456 AMAQI
9th Sep 2025427 AMAQI
9th Sep 2025428 AMAQI
9th Sep 2025569 AMAQI
9th Sep 20256010 AMAQI
9th Sep 20255711 AMAQI
9th Sep 20255812 PMAQI
9th Sep 2025561 PMAQI
9th Sep 2025572 PMAQI
9th Sep 2025573 PMAQI
9th Sep 2025554 PMAQI
9th Sep 2025545 PMAQI
9th Sep 2025556 PMAQI
9th Sep 2025557 PMAQI
9th Sep 2025568 PMAQI
9th Sep 2025589 PMAQI
9th Sep 20255610 PMAQI
9th Sep 20255411 PMAQI
10th Sep 20255212 AMAQI
10th Sep 2025461 AMAQI
10th Sep 2025442 AMAQI
10th Sep 2025443 AMAQI
10th Sep 2025504 AMAQI
10th Sep 2025495 AMAQI
23°C20/26°C
10th Sep 2025506 AMAQI
10th Sep 2025507 AMAQI
10th Sep 2025488 AMAQI
10th Sep 2025619 AMAQI
10th Sep 20256210 AMAQI
10th Sep 20256611 AMAQI
10th Sep 20255812 PMAQI
10th Sep 2025521 PMAQI
10th Sep 2025522 PMAQI
10th Sep 2025513 PMAQI
10th Sep 2025504 PMAQI
10th Sep 2025515 PMAQI
10th Sep 2025546 PMAQI
10th Sep 2025507 PMAQI
10th Sep 2025548 PMAQI
10th Sep 2025549 PMAQI
10th Sep 20255410 PMAQI
10th Sep 20255611 PMAQI
11th Sep 20255612 AMAQI
11th Sep 2025521 AMAQI
11th Sep 2025482 AMAQI
11th Sep 2025473 AMAQI
11th Sep 2025514 AMAQI
11th Sep 2025525 AMAQI
23°C19/28°C
11th Sep 2025516 AMAQI
11th Sep 2025517 AMAQI
11th Sep 2025518 AMAQI
11th Sep 2025609 AMAQI
11th Sep 20256210 AMAQI
11th Sep 20255911 AMAQI
11th Sep 20255812 PMAQI
11th Sep 2025521 PMAQI
11th Sep 2025422 PMAQI
11th Sep 2025413 PMAQI
11th Sep 2025454 PMAQI
11th Sep 2025525 PMAQI
11th Sep 2025416 PMAQI
11th Sep 2025487 PMAQI
11th Sep 2025588 PMAQI
11th Sep 2025559 PMAQI
11th Sep 20256010 PMAQI
11th Sep 20255611 PMAQI
12th Sep 20255512 AMAQI
12th Sep 2025521 AMAQI
12th Sep 2025502 AMAQI
12th Sep 2025523 AMAQI
12th Sep 2025514 AMAQI
12th Sep 2025535 AMAQI
24°C19/29°C
12th Sep 2025526 AMAQI
12th Sep 2025527 AMAQI
12th Sep 2025528 AMAQI
12th Sep 2025629 AMAQI
12th Sep 20256210 AMAQI
12th Sep 20255211 AMAQI
12th Sep 20255812 PMAQI
12th Sep 2025551 PMAQI
12th Sep 2025492 PMAQI
12th Sep 2025493 PMAQI
12th Sep 2025474 PMAQI
12th Sep 2025485 PMAQI
12th Sep 2025466 PMAQI
12th Sep 2025407 PMAQI
12th Sep 2025448 PMAQI
12th Sep 2025509 PMAQI
12th Sep 20254610 PMAQI
12th Sep 20254811 PMAQI
13th Sep 20254812 AMAQI
13th Sep 2025501 AMAQI
13th Sep 2025522 AMAQI
13th Sep 2025513 AMAQI
13th Sep 2025524 AMAQI
13th Sep 2025535 AMAQI
22°C20/24°C
13th Sep 2025526 AMAQI
13th Sep 2025527 AMAQI
13th Sep 2025538 AMAQI
13th Sep 2025289 AMAQI
13th Sep 20254110 AMAQI
13th Sep 20253611 AMAQI
13th Sep 20253612 PMAQI
13th Sep 2025361 PMAQI
13th Sep 2025412 PMAQI
13th Sep 2025333 PMAQI
13th Sep 2025364 PMAQI
13th Sep 2025355 PMAQI
13th Sep 2025336 PMAQI
13th Sep 2025287 PMAQI
13th Sep 2025398 PMAQI
13th Sep 2025489 PMAQI
13th Sep 20255810 PMAQI
13th Sep 20256011 PMAQI
14th Sep 20255012 AMAQI
14th Sep 2025541 AMAQI
14th Sep 2025492 AMAQI
14th Sep 2025523 AMAQI
14th Sep 2025504 AMAQI
14th Sep 2025515 AMAQI
24°C21/27°C
14th Sep 2025476 AMAQI
14th Sep 2025507 AMAQI
14th Sep 2025518 AMAQI
14th Sep 2025419 AMAQI
14th Sep 20253910 AMAQI
14th Sep 20253611 AMAQI
14th Sep 20254012 PMAQI
14th Sep 2025401 PMAQI
14th Sep 2025402 PMAQI
14th Sep 2025413 PMAQI
14th Sep 2025444 PMAQI
14th Sep 2025425 PMAQI
14th Sep 2025436 PMAQI
14th Sep 2025517 PMAQI
14th Sep 2025558 PMAQI
14th Sep 2025489 PMAQI
14th Sep 20254410 PMAQI
14th Sep 20254511 PMAQI
15th Sep 20254312 AMAQI
15th Sep 2025461 AMAQI
15th Sep 2025512 AMAQI
15th Sep 2025513 AMAQI
15th Sep 2025494 AMAQI
15th Sep 2025515 AMAQI
24°C21/27°C
15th Sep 2025476 AMAQI
15th Sep 2025507 AMAQI
15th Sep 2025518 AMAQI
15th Sep 2025579 AMAQI
15th Sep 20254610 AMAQI
15th Sep 20254511 AMAQI
15th Sep 20255612 PMAQI
15th Sep 2025531 PMAQI
15th Sep 2025452 PMAQI
15th Sep 2025513 PMAQI
15th Sep 2025504 PMAQI
15th Sep 2025505 PMAQI
15th Sep 2025386 PMAQI
15th Sep 2025387 PMAQI
15th Sep 2025548 PMAQI
15th Sep 2025549 PMAQI
15th Sep 20256010 PMAQI
15th Sep 20256111 PMAQI
16th Sep 20255412 AMAQI
16th Sep 2025501 AMAQI
16th Sep 2025502 AMAQI
16th Sep 2025493 AMAQI
16th Sep 2025504 AMAQI
16th Sep 2025515 AMAQI
24°C20/29°C
16th Sep 2025506 AMAQI
16th Sep 2025507 AMAQI
16th Sep 2025518 AMAQI
16th Sep 2025609 AMAQI
16th Sep 20256810 AMAQI
16th Sep 20255811 AMAQI
16th Sep 20255512 PMAQI
16th Sep 2025461 PMAQI
16th Sep 2025322 PMAQI
16th Sep 2025303 PMAQI
16th Sep 2025244 PMAQI
16th Sep 2025245 PMAQI
16th Sep 2025216 PMAQI
16th Sep 2025207 PMAQI
16th Sep 2025288 PMAQI
16th Sep 2025389 PMAQI
16th Sep 20253810 PMAQI
16th Sep 20254111 PMAQI
17th Sep 20254312 AMAQI
17th Sep 2025501 AMAQI
17th Sep 2025522 AMAQI
17th Sep 2025503 AMAQI
17th Sep 2025524 AMAQI
17th Sep 2025525 AMAQI
25°C22/28°C
17th Sep 2025526 AMAQI
17th Sep 2025527 AMAQI
17th Sep 2025528 AMAQI
17th Sep 2025289 AMAQI
17th Sep 20252310 AMAQI
17th Sep 20252011 AMAQI
17th Sep 20252612 PMAQI
17th Sep 2025221 PMAQI
17th Sep 2025232 PMAQI
17th Sep 2025213 PMAQI
17th Sep 2025224 PMAQI
17th Sep 2025265 PMAQI
17th Sep 2025266 PMAQI
17th Sep 2025307 PMAQI
17th Sep 2025408 PMAQI
17th Sep 2025429 PMAQI
17th Sep 20253810 PMAQI
17th Sep 20253911 PMAQI
18th Sep 20254012 AMAQI
18th Sep 2025501 AMAQI
18th Sep 2025512 AMAQI
18th Sep 2025513 AMAQI
18th Sep 2025504 AMAQI
18th Sep 2025465 AMAQI
23°C21/25°C
18th Sep 2025466 AMAQI
18th Sep 2025467 AMAQI
18th Sep 2025468 AMAQI
18th Sep 2025509 AMAQI
18th Sep 20254910 AMAQI
18th Sep 20255611 AMAQI
18th Sep 20255212 PMAQI
18th Sep 2025421 PMAQI
18th Sep 2025382 PMAQI
18th Sep 2025343 PMAQI
18th Sep 2025284 PMAQI
18th Sep 2025235 PMAQI
18th Sep 2025266 PMAQI
18th Sep 2025267 PMAQI
18th Sep 2025318 PMAQI
18th Sep 2025409 PMAQI
18th Sep 20253610 PMAQI
18th Sep 20253411 PMAQI
19th Sep 20253412 AMAQI
19th Sep 2025471 AMAQI
19th Sep 2025472 AMAQI
19th Sep 2025483 AMAQI
19th Sep 2025484 AMAQI
19th Sep 2025495 AMAQI
22°C19/26°C
19th Sep 2025486 AMAQI
19th Sep 2025497 AMAQI
19th Sep 2025488 AMAQI
19th Sep 2025299 AMAQI
19th Sep 20252210 AMAQI
19th Sep 20253011 AMAQI
19th Sep 20252712 PMAQI
19th Sep 2025271 PMAQI
19th Sep 2025282 PMAQI
19th Sep 2025303 PMAQI
19th Sep 2025334 PMAQI
19th Sep 2025335 PMAQI
19th Sep 2025486 PMAQI
19th Sep 2025477 PMAQI
19th Sep 2025338 PMAQI
19th Sep 2025309 PMAQI
19th Sep 20253210 PMAQI
19th Sep 20253311 PMAQI
20th Sep 20253212 AMAQI
20th Sep 2025461 AMAQI
20th Sep 2025482 AMAQI
20th Sep 2025473 AMAQI
20th Sep 2025454 AMAQI
20th Sep 2025425 AMAQI
18°C16/19°C
20th Sep 2025426 AMAQI
20th Sep 2025427 AMAQI
20th Sep 2025428 AMAQI
20th Sep 2025259 AMAQI
20th Sep 20252410 AMAQI
20th Sep 20252611 AMAQI
20th Sep 20252512 PMAQI
20th Sep 2025211 PMAQI
20th Sep 2025182 PMAQI
20th Sep 2025153 PMAQI
20th Sep 2025164 PMAQI
20th Sep 2025165 PMAQI
20th Sep 2025176 PMAQI
20th Sep 2025177 PMAQI
20th Sep 2025218 PMAQI
20th Sep 2025349 PMAQI
20th Sep 20254310 PMAQI
20th Sep 20254811 PMAQI
21st Sep 20254112 AMAQI
21st Sep 2025441 AMAQI
21st Sep 2025432 AMAQI
21st Sep 2025443 AMAQI
21st Sep 2025424 AMAQI
21st Sep 2025395 AMAQI
19°C17/23°C
21st Sep 2025406 AMAQI
21st Sep 2025397 AMAQI
21st Sep 2025388 AMAQI
21st Sep 2025459 AMAQI
21st Sep 20253910 AMAQI
21st Sep 20252711 AMAQI
21st Sep 20251612 PMAQI
21st Sep 2025161 PMAQI
21st Sep 2025182 PMAQI
21st Sep 2025163 PMAQI
21st Sep 2025164 PMAQI
21st Sep 2025155 PMAQI
21st Sep 2025166 PMAQI
21st Sep 2025167 PMAQI
21st Sep 2025238 PMAQI
21st Sep 2025329 PMAQI
21st Sep 20254210 PMAQI
21st Sep 20254311 PMAQI
22nd Sep 20254212 AMAQI
22nd Sep 2025421 AMAQI
22nd Sep 2025422 AMAQI
22nd Sep 2025413 AMAQI
22nd Sep 2025404 AMAQI
22nd Sep 2025375 AMAQI
20°C17/24°C
22nd Sep 2025376 AMAQI
22nd Sep 2025377 AMAQI
22nd Sep 2025388 AMAQI
22nd Sep 2025269 AMAQI
22nd Sep 20253210 AMAQI
22nd Sep 20252611 AMAQI
22nd Sep 20251912 PMAQI
22nd Sep 2025181 PMAQI
22nd Sep 2025202 PMAQI
22nd Sep 2025203 PMAQI
22nd Sep 2025314 PMAQI
22nd Sep 2025265 PMAQI
22nd Sep 2025186 PMAQI
22nd Sep 2025207 PMAQI
22nd Sep 2025268 PMAQI
22nd Sep 2025329 PMAQI
22nd Sep 20254210 PMAQI
22nd Sep 20254711 PMAQI
23rd Sep 20254712 AMAQI
23rd Sep 2025411 AMAQI
23rd Sep 2025422 AMAQI
23rd Sep 2025413 AMAQI
23rd Sep 2025394 AMAQI
23rd Sep 2025375 AMAQI
21°C18/24°C
23rd Sep 2025366 AMAQI
23rd Sep 2025367 AMAQI
23rd Sep 2025378 AMAQI
23rd Sep 2025339 AMAQI
23rd Sep 20252810 AMAQI
23rd Sep 20252411 AMAQI
23rd Sep 20252012 PMAQI
23rd Sep 2025221 PMAQI
23rd Sep 2025302 PMAQI
23rd Sep 2025283 PMAQI
23rd Sep 2025324 PMAQI
23rd Sep 2025315 PMAQI
23rd Sep 2025266 PMAQI
23rd Sep 2025267 PMAQI
23rd Sep 2025298 PMAQI
23rd Sep 2025429 PMAQI
23rd Sep 20254610 PMAQI
23rd Sep 20254611 PMAQI
24th Sep 20253712 AMAQI
24th Sep 2025381 AMAQI
24th Sep 2025422 AMAQI
24th Sep 2025413 AMAQI
24th Sep 2025404 AMAQI
24th Sep 2025395 AMAQI
21°C19/24°C
24th Sep 2025386 AMAQI
24th Sep 2025387 AMAQI
24th Sep 2025378 AMAQI
24th Sep 2025339 AMAQI
24th Sep 20253910 AMAQI
24th Sep 20254611 AMAQI
24th Sep 20254912 PMAQI
24th Sep 2025401 PMAQI
24th Sep 2025432 PMAQI
24th Sep 2025473 PMAQI
24th Sep 2025464 PMAQI
24th Sep 2025345 PMAQI
24th Sep 2025226 PMAQI
24th Sep 2025207 PMAQI
24th Sep 2025208 PMAQI
24th Sep 2025279 PMAQI
24th Sep 20252810 PMAQI
24th Sep 20253211 PMAQI
25th Sep 20253012 AMAQI
25th Sep 2025311 AMAQI
25th Sep 2025402 AMAQI
25th Sep 2025403 AMAQI
25th Sep 2025404 AMAQI
25th Sep 2025415 AMAQI
21°C19/24°C
25th Sep 2025416 AMAQI
25th Sep 2025417 AMAQI
25th Sep 2025418 AMAQI
25th Sep 2025289 AMAQI
25th Sep 20253810 AMAQI
25th Sep 20254811 AMAQI
25th Sep 20253212 PMAQI
25th Sep 2025301 PMAQI
25th Sep 2025322 PMAQI
25th Sep 2025423 PMAQI
25th Sep 2025844 PMAQI
25th Sep 2025725 PMAQI
25th Sep 2025666 PMAQI
25th Sep 2025447 PMAQI
25th Sep 2025408 PMAQI
25th Sep 2025509 PMAQI
25th Sep 20256310 PMAQI
25th Sep 20256211 PMAQI
26th Sep 20256112 AMAQI
26th Sep 2025341 AMAQI
26th Sep 2025252 AMAQI
26th Sep 2025253 AMAQI
26th Sep 2025294 AMAQI
26th Sep 2025295 AMAQI
21°C19/24°C
26th Sep 2025286 AMAQI
26th Sep 2025337 AMAQI
26th Sep 2025278 AMAQI
26th Sep 2025409 AMAQI
26th Sep 20254010 AMAQI
26th Sep 20255411 AMAQI
26th Sep 20257912 PMAQI
26th Sep 2025771 PMAQI
26th Sep 2025762 PMAQI
26th Sep 2025863 PMAQI
26th Sep 20251114 PMAQI
26th Sep 2025835 PMAQI
26th Sep 2025596 PMAQI
26th Sep 2025577 PMAQI
26th Sep 2025758 PMAQI
26th Sep 2025809 PMAQI
26th Sep 20257710 PMAQI
26th Sep 20257011 PMAQI
27th Sep 20256412 AMAQI
27th Sep 2025601 AMAQI
27th Sep 2025432 AMAQI
27th Sep 2025473 AMAQI
27th Sep 2025604 AMAQI
27th Sep 2025555 AMAQI
21°C18/25°C
27th Sep 2025546 AMAQI
27th Sep 2025537 AMAQI
27th Sep 2025518 AMAQI
27th Sep 2025489 AMAQI
27th Sep 20255010 AMAQI
27th Sep 20257011 AMAQI
27th Sep 20256412 PMAQI
27th Sep 2025491 PMAQI
27th Sep 2025332 PMAQI
27th Sep 2025353 PMAQI
27th Sep 2025464 PMAQI
27th Sep 2025525 PMAQI
27th Sep 2025546 PMAQI
27th Sep 2025537 PMAQI
27th Sep 2025558 PMAQI
27th Sep 2025579 PMAQI
27th Sep 20256010 PMAQI
27th Sep 20256911 PMAQI
28th Sep 20257512 AMAQI
28th Sep 2025691 AMAQI
28th Sep 2025692 AMAQI
28th Sep 2025713 AMAQI
28th Sep 2025704 AMAQI
28th Sep 2025685 AMAQI
21°C18/26°C
28th Sep 2025626 AMAQI
28th Sep 2025497 AMAQI
28th Sep 2025448 AMAQI
28th Sep 2025349 AMAQI
28th Sep 20252110 AMAQI
28th Sep 20251811 AMAQI
28th Sep 20251812 PMAQI
28th Sep 2025141 PMAQI
28th Sep 202562 PMAQI
28th Sep 2025143 PMAQI
28th Sep 2025204 PMAQI
28th Sep 2025245 PMAQI
28th Sep 2025306 PMAQI
28th Sep 2025337 PMAQI
28th Sep 2025388 PMAQI
28th Sep 2025379 PMAQI
28th Sep 20254310 PMAQI
28th Sep 20254211 PMAQI
29th Sep 20253912 AMAQI
29th Sep 2025391 AMAQI
29th Sep 2025262 AMAQI
29th Sep 2025253 AMAQI
29th Sep 2025284 AMAQI
29th Sep 2025325 AMAQI
20°C19/21°C
29th Sep 2025376 AMAQI
29th Sep 2025227 AMAQI
29th Sep 2025248 AMAQI
29th Sep 2025329 AMAQI
29th Sep 20254510 AMAQI
29th Sep 20253111 AMAQI
29th Sep 20252012 PMAQI
29th Sep 2025161 PMAQI
29th Sep 202562 PMAQI
29th Sep 2025123 PMAQI
29th Sep 2025224 PMAQI
29th Sep 2025225 PMAQI
29th Sep 2025206 PMAQI
29th Sep 2025197 PMAQI
29th Sep 2025318 PMAQI
29th Sep 2025419 PMAQI
29th Sep 20254610 PMAQI
29th Sep 20254711 PMAQI
30th Sep 20254412 AMAQI
30th Sep 2025361 AMAQI
30th Sep 2025422 AMAQI
30th Sep 2025433 AMAQI
30th Sep 2025394 AMAQI
30th Sep 2025455 AMAQI
20°C17/23°C
30th Sep 2025396 AMAQI
6 AM30th Sep 2025247 AMAQI
30th Sep 2025488 AMAQI
30th Sep 2025459 AMAQI
12 PM
6 PM
12 AM
5 AM
--°C/°C
Day time
Avg. Highest Time
6 AM - 8 AM
45AQI
3 hours / Day
90 hours / Month
Avg. Lowest Time
1 PM - 3 PM
38AQI
3 hours / Day
90 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 6 AM to 8 AM (Avg. 45), while the lowest AQI was between 1 PM to 3 PM (Avg. 38).
Night time
Avg. Highest Time
10 PM - 11 PM
48AQI
2 hours / Day
60 hours / Month
Avg. Lowest Time
7 PM
39AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 10 PM to 11 PM (Avg. 48), while the lowest AQI was between 7 PM to 7 PM (Avg. 39).
2025 Days Vs Air Quality
Seongyeon Myeon, Sosan, Chungnam, South Korea
2025
28%
75
68%
185
4%
11
Total number of days with different AQI categories in last 273 days in 2025 (92 days remaining)
Good
75 DaysModerate
185 DaysPoor
11 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 28%
Health Risk Level:
Very high
In 2025, 28% of 273 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
Seongyeon Myeon, Sosan, Chungnam, South Korea
AQI levels in 2025
AQI
PM2.5
PM10
CO
SO2
NO2
O3
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
-1th undefined 2025
-1th undefined 2025
-1th undefined 2025
1st January 2025
76AQI
76AQI
2nd January 2025
53AQI
53AQI
3rd January 2025
59AQI
59AQI
4th January 2025
58AQI
58AQI
5th January 2025
62AQI
62AQI
6th January 2025
68AQI
68AQI
7th January 2025
52AQI
52AQI
8th January 2025
57AQI
57AQI
9th January 2025
40AQI
40AQI
10th January 2025
57AQI
57AQI
11th January 2025
55AQI
55AQI
12th January 2025
76AQI
76AQI
13th January 2025
80AQI
80AQI
14th January 2025
90AQI
90AQI
15th January 2025
52AQI
52AQI
16th January 2025
72AQI
72AQI
17th January 2025
63AQI
63AQI
18th January 2025
73AQI
73AQI
19th January 2025
68AQI
68AQI
20th January 2025
120AQI
120AQI
21st January 2025
117AQI
117AQI
22nd January 2025
121AQI
121AQI
23rd January 2025
94AQI
94AQI
24th January 2025
113AQI
113AQI
25th January 2025
77AQI
77AQI
26th January 2025
66AQI
66AQI
27th January 2025
61AQI
61AQI
28th January 2025
57AQI
57AQI
29th January 2025
56AQI
56AQI
30th January 2025
60AQI
60AQI
31st January 2025
80AQI
80AQI
1st February 2025
89AQI
89AQI
2nd February 2025
97AQI
97AQI
3rd February 2025
56AQI
56AQI
4th February 2025
54AQI
54AQI
5th February 2025
47AQI
47AQI
6th February 2025
56AQI
56AQI
7th February 2025
42AQI
42AQI
8th February 2025
45AQI
45AQI
9th February 2025
47AQI
47AQI
10th February 2025
59AQI
59AQI
11th February 2025
85AQI
85AQI
12th February 2025
64AQI
64AQI
13th February 2025
59AQI
59AQI
14th February 2025
85AQI
85AQI
15th February 2025
63AQI
63AQI
16th February 2025
110AQI
110AQI
17th February 2025
54AQI
54AQI
18th February 2025
62AQI
62AQI
19th February 2025
49AQI
49AQI
20th February 2025
59AQI
59AQI
21st February 2025
57AQI
57AQI
22nd February 2025
56AQI
56AQI
23rd February 2025
54AQI
54AQI
24th February 2025
56AQI
56AQI
25th February 2025
57AQI
57AQI
26th February 2025
66AQI
66AQI
27th February 2025
62AQI
62AQI
28th February 2025
74AQI
74AQI
1st March 2025
90AQI
90AQI
2nd March 2025
82AQI
82AQI
3rd March 2025
56AQI
56AQI
4th March 2025
50AQI
50AQI
5th March 2025
43AQI
43AQI
6th March 2025
82AQI
82AQI
7th March 2025
83AQI
83AQI
8th March 2025
86AQI
86AQI
9th March 2025
105AQI
105AQI
10th March 2025
104AQI
104AQI
11th March 2025
100AQI
100AQI
12th March 2025
93AQI
93AQI
13th March 2025
81AQI
81AQI
14th March 2025
81AQI
81AQI
15th March 2025
63AQI
63AQI
16th March 2025
69AQI
69AQI
17th March 2025
68AQI
68AQI
18th March 2025
83AQI
83AQI
19th March 2025
88AQI
88AQI
20th March 2025
96AQI
96AQI
21st March 2025
90AQI
90AQI
22nd March 2025
109AQI
109AQI
23rd March 2025
114AQI
114AQI
24th March 2025
110AQI
110AQI
25th March 2025
123AQI
123AQI
26th March 2025
92AQI
92AQI
27th March 2025
88AQI
88AQI
28th March 2025
64AQI
64AQI
29th March 2025
54AQI
54AQI
30th March 2025
57AQI
57AQI
31st March 2025
65AQI
65AQI
1st April 2025
66AQI
66AQI
2nd April 2025
77AQI
77AQI
3rd April 2025
87AQI
87AQI
4th April 2025
79AQI
79AQI
5th April 2025
73AQI
73AQI
6th April 2025
66AQI
66AQI
7th April 2025
67AQI
67AQI
8th April 2025
71AQI
71AQI
9th April 2025
64AQI
64AQI
10th April 2025
73AQI
73AQI
11th April 2025
76AQI
76AQI
12th April 2025
57AQI
57AQI
13th April 2025
62AQI
62AQI
14th April 2025
47AQI
47AQI
15th April 2025
60AQI
60AQI
16th April 2025
59AQI
59AQI
17th April 2025
65AQI
65AQI
18th April 2025
70AQI
70AQI
19th April 2025
43AQI
43AQI
20th April 2025
66AQI
66AQI
21st April 2025
58AQI
58AQI
22nd April 2025
46AQI
46AQI
23rd April 2025
46AQI
46AQI
24th April 2025
62AQI
62AQI
25th April 2025
56AQI
56AQI
26th April 2025
45AQI
45AQI
27th April 2025
40AQI
40AQI
28th April 2025
57AQI
57AQI
29th April 2025
67AQI
67AQI
30th April 2025
59AQI
59AQI
1st May 2025
61AQI
61AQI
2nd May 2025
52AQI
52AQI
3rd May 2025
50AQI
50AQI
4th May 2025
43AQI
43AQI
5th May 2025
50AQI
50AQI
6th May 2025
48AQI
48AQI
7th May 2025
50AQI
50AQI
8th May 2025
60AQI
60AQI
9th May 2025
51AQI
51AQI
10th May 2025
61AQI
61AQI
11th May 2025
67AQI
67AQI
12th May 2025
68AQI
68AQI
13th May 2025
73AQI
73AQI
14th May 2025
69AQI
69AQI
15th May 2025
57AQI
57AQI
16th May 2025
46AQI
46AQI
17th May 2025
42AQI
42AQI
18th May 2025
55AQI
55AQI
19th May 2025
59AQI
59AQI
20th May 2025
39AQI
39AQI
21st May 2025
43AQI
43AQI
22nd May 2025
45AQI
45AQI
23rd May 2025
59AQI
59AQI
24th May 2025
55AQI
55AQI
25th May 2025
47AQI
47AQI
26th May 2025
66AQI
66AQI
27th May 2025
65AQI
65AQI
28th May 2025
68AQI
68AQI
29th May 2025
74AQI
74AQI
30th May 2025
83AQI
83AQI
31st May 2025
84AQI
84AQI
1st June 2025
78AQI
78AQI
2nd June 2025
84AQI
84AQI
3rd June 2025
66AQI
66AQI
4th June 2025
56AQI
56AQI
5th June 2025
52AQI
52AQI
6th June 2025
57AQI
57AQI
7th June 2025
64AQI
64AQI
8th June 2025
57AQI
57AQI
9th June 2025
56AQI
56AQI
10th June 2025
52AQI
52AQI
11th June 2025
52AQI
52AQI
12th June 2025
61AQI
61AQI
13th June 2025
66AQI
66AQI
14th June 2025
60AQI
60AQI
15th June 2025
52AQI
52AQI
16th June 2025
55AQI
55AQI
17th June 2025
57AQI
57AQI
18th June 2025
60AQI
60AQI
19th June 2025
60AQI
60AQI
20th June 2025
50AQI
50AQI
21st June 2025
53AQI
53AQI
22nd June 2025
52AQI
52AQI
23rd June 2025
58AQI
58AQI
24th June 2025
59AQI
59AQI
25th June 2025
50AQI
50AQI
26th June 2025
52AQI
52AQI
27th June 2025
62AQI
62AQI
28th June 2025
56AQI
56AQI
29th June 2025
50AQI
50AQI
30th June 2025
49AQI
49AQI
1st July 2025
47AQI
47AQI
2nd July 2025
51AQI
51AQI
3rd July 2025
53AQI
53AQI
4th July 2025
52AQI
52AQI
5th July 2025
50AQI
50AQI
6th July 2025
50AQI
50AQI
7th July 2025
55AQI
55AQI
8th July 2025
63AQI
63AQI
9th July 2025
56AQI
56AQI
10th July 2025
54AQI
54AQI
11th July 2025
55AQI
55AQI
12th July 2025
54AQI
54AQI
13th July 2025
61AQI
61AQI
14th July 2025
59AQI
59AQI
15th July 2025
49AQI
49AQI
16th July 2025
53AQI
53AQI
17th July 2025
47AQI
47AQI
18th July 2025
48AQI
48AQI
19th July 2025
40AQI
40AQI
20th July 2025
49AQI
49AQI
21st July 2025
43AQI
43AQI
22nd July 2025
44AQI
44AQI
23rd July 2025
50AQI
50AQI
24th July 2025
55AQI
55AQI
25th July 2025
69AQI
69AQI
26th July 2025
64AQI
64AQI
27th July 2025
54AQI
54AQI
28th July 2025
60AQI
60AQI
29th July 2025
64AQI
64AQI
30th July 2025
71AQI
71AQI
31st July 2025
61AQI
61AQI
1st August 2025
58AQI
58AQI
2nd August 2025
63AQI
63AQI
3rd August 2025
61AQI
61AQI
4th August 2025
54AQI
54AQI
5th August 2025
52AQI
52AQI
6th August 2025
52AQI
52AQI
7th August 2025
46AQI
46AQI
8th August 2025
55AQI
55AQI
9th August 2025
51AQI
51AQI
10th August 2025
53AQI
53AQI
11th August 2025
58AQI
58AQI
12th August 2025
52AQI
52AQI
13th August 2025
44AQI
44AQI
14th August 2025
41AQI
41AQI
15th August 2025
40AQI
40AQI
16th August 2025
37AQI
37AQI
17th August 2025
41AQI
41AQI
18th August 2025
51AQI
51AQI
19th August 2025
47AQI
47AQI
20th August 2025
48AQI
48AQI
21st August 2025
51AQI
51AQI
22nd August 2025
50AQI
50AQI
23rd August 2025
51AQI
51AQI
24th August 2025
52AQI
52AQI
25th August 2025
47AQI
47AQI
26th August 2025
43AQI
43AQI
27th August 2025
51AQI
51AQI
28th August 2025
51AQI
51AQI
29th August 2025
45AQI
45AQI
30th August 2025
42AQI
42AQI
31st August 2025
47AQI
47AQI
1st September 2025
41AQI
41AQI
2nd September 2025
49AQI
49AQI
3rd September 2025
51AQI
51AQI
4th September 2025
46AQI
46AQI
5th September 2025
44AQI
44AQI
6th September 2025
38AQI
38AQI
7th September 2025
43AQI
43AQI
8th September 2025
50AQI
50AQI
9th September 2025
51AQI
51AQI
10th September 2025
52AQI
52AQI
11th September 2025
52AQI
52AQI
12th September 2025
51AQI
51AQI
13th September 2025
44AQI
44AQI
14th September 2025
46AQI
46AQI
15th September 2025
50AQI
50AQI
16th September 2025
42AQI
42AQI
17th September 2025
38AQI
38AQI
18th September 2025
41AQI
41AQI
19th September 2025
38AQI
38AQI
20th September 2025
32AQI
32AQI
21st September 2025
32AQI
32AQI
22nd September 2025
32AQI
32AQI
23rd September 2025
35AQI
35AQI
24th September 2025
35AQI
35AQI
25th September 2025
47AQI
47AQI
26th September 2025
56AQI
56AQI
27th September 2025
56AQI
56AQI
28th September 2025
50AQI
50AQI
29th September 2025
30th September 2025
1st October 2025
2nd October 2025
3rd October 2025
4th October 2025
5th October 2025
6th October 2025
7th October 2025
8th October 2025
9th October 2025
10th October 2025
11th October 2025
12th October 2025
13th October 2025
14th October 2025
15th October 2025
16th October 2025
17th October 2025
18th October 2025
19th October 2025
20th October 2025
21st October 2025
22nd October 2025
23rd October 2025
24th October 2025
25th October 2025
26th October 2025
27th October 2025
28th October 2025
29th October 2025
30th October 2025
31st October 2025
1st November 2025
2nd November 2025
3rd November 2025
4th November 2025
5th November 2025
6th November 2025
7th November 2025
8th November 2025
9th November 2025
10th November 2025
11th November 2025
12th November 2025
13th November 2025
14th November 2025
15th November 2025
16th November 2025
17th November 2025
18th November 2025
19th November 2025
20th November 2025
21st November 2025
22nd November 2025
23rd November 2025
24th November 2025
25th November 2025
26th November 2025
27th November 2025
28th November 2025
29th November 2025
30th November 2025
1st December 2025
2nd December 2025
3rd December 2025
4th December 2025
5th December 2025
6th December 2025
7th December 2025
8th December 2025
9th December 2025
10th December 2025
11th December 2025
12th December 2025
13th December 2025
14th December 2025
15th December 2025
16th December 2025
17th December 2025
18th December 2025
19th December 2025
20th December 2025
21st December 2025
22nd December 2025
23rd December 2025
24th December 2025
25th December 2025
26th December 2025
27th December 2025
28th December 2025
29th December 2025
30th December 2025
31st December 2025
72AQI
63AQI
83AQI
62AQI
58AQI
58AQI
54AQI
49AQI
44AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202561AQI
1
26
4
5
22
1
2
23
6
6
24
11
20
4
26
11
20
14
17
21
7
75
185
11
Highest AQI recorded in
March83AQI
Lowest AQI recorded in
September44AQI
202459AQI
11
15
5
10
15
4
4
23
3
1
1
28
1
7
24
5
24
23
8
14
17
22
8
15
16
12
18
7
24
131
220
13
1
Highest AQI recorded in
April74AQI
Lowest AQI recorded in
July39AQI
202365AQI
9
15
5
2
1
19
6
2
4
19
8
3
20
5
2
5
25
1
4
26
15
16
16
15
14
16
13
18
15
14
11
15
5
110
218
30
6
Highest AQI recorded in
February90AQI
Lowest AQI recorded in
September49AQI
202265AQI
3
21
5
1
4
10
4
3
5
19
6
5
22
3
5
25
1
18
12
8
16
1
14
14
12
16
3
6
21
3
10
21
91
197
25
4
Highest AQI recorded in
February85AQI
Lowest AQI recorded in
June46AQI
202169AQI
4
24
2
18
7
3
1
17
10
2
1
2
27
1
3
25
1
2
5
20
5
15
16
13
18
24
6
15
16
10
16
4
10
15
6
102
218
36
5
3
Highest AQI recorded in
March105AQI
Lowest AQI recorded in
September42AQI
202060AQI
1
2
13
17
1
17
14
13
17
6
24
1
11
16
3
6
21
4
67
111
9
Highest AQI recorded in
December71AQI
Lowest AQI recorded in
August50AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2021(Avg.)
69AQILeast Polluted Year Recorded
2024(Avg.)
59AQISeongyeon Myeon's annual 2025 AQI (61) shows an average percentage change of -4.1% (improved AQI) compared to previous years: 2020 (60), 2021 (69), 2022 (65), 2023 (65), 2024 (59).
