Country Background
HistoryAQIPM2.5PM10COSO2NO2O3

Seonggeoeup, Chonan, 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+

August Air Quality Analysis

Seonggeoeup, Chonan, Chungnam, South Korea

2021
2022
2023
2024
2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
12th Aug 2021
88AQI
Lowest AQI recorded on
31st Aug 2022
17AQI

Same Day Analysis (4th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 53 of Moderate air quality, showing improvement over 2024 and 2023 on the same day.

Download 2024 Annual Data

World Air Quality Report

Globe

Day & Night AQI Trend: 4th Aug - 5th Aug 2025

Seonggeoeup, Chonan, Chungnam, South Korea

AQI
Day
Night
.

5 AM4th Aug 2025

7 PM

4 AM5th Aug 2025

Day time
Avg. Highest Time
7AM4th Aug

59AQI

Avg. Lowest Time
9AM4th Aug

35AQI

Night time
Avg. Highest Time
9PM4th Aug

56AQI

Avg. Lowest Time
8PM4th Aug

54AQI

In the last 24 hours,

Seonggeoeup's AQI reached its highest point of 59 at 7 AM during the Day, while the lowest point, 35, was recorded at 9 AM during the Day between 4th Aug and 5th Aug 2025.

Day & Night AQI Trend : Jul - Aug 2025

Seonggeoeup, Chonan, Chungnam, South Korea

JulAug
06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th
Day
Night
6th Jul 2025485 AMAQI
6th Jul 2025486 AMAQI
6th Jul 2025487 AMAQI
6th Jul 2025488 AMAQI
6th Jul 2025489 AMAQI
6th Jul 20254610 AMAQI
6th Jul 20255811 AMAQI
6th Jul 20256812 PMAQI
6th Jul 2025651 PMAQI
6th Jul 2025512 PMAQI
6th Jul 2025423 PMAQI
6th Jul 2025364 PMAQI
6th Jul 2025485 PMAQI
6th Jul 2025516 PMAQI
6th Jul 2025587 PMAQI
6th Jul 2025598 PMAQI
6th Jul 2025569 PMAQI
6th Jul 20255510 PMAQI
6th Jul 20255611 PMAQI
7th Jul 20255612 AMAQI
7th Jul 2025501 AMAQI
7th Jul 2025502 AMAQI
7th Jul 2025503 AMAQI
7th Jul 2025514 AMAQI

27°C21/34°C

7th Jul 2025525 AMAQI
7th Jul 2025526 AMAQI
7th Jul 2025527 AMAQI
7th Jul 2025528 AMAQI
7th Jul 2025549 AMAQI
7th Jul 20255410 AMAQI
7th Jul 20255411 AMAQI
7th Jul 20256212 PMAQI
7th Jul 2025701 PMAQI
7th Jul 2025602 PMAQI
7th Jul 2025693 PMAQI
7th Jul 2025804 PMAQI
7th Jul 2025795 PMAQI
7th Jul 2025816 PMAQI
7th Jul 2025787 PMAQI
7th Jul 2025728 PMAQI
7th Jul 2025659 PMAQI
7th Jul 20256410 PMAQI
7th Jul 20256611 PMAQI
8th Jul 20256712 AMAQI
8th Jul 2025681 AMAQI
8th Jul 2025602 AMAQI
8th Jul 2025523 AMAQI
8th Jul 2025524 AMAQI

28°C23/34°C

8th Jul 2025545 AMAQI
8th Jul 2025546 AMAQI
8th Jul 2025537 AMAQI
8th Jul 2025548 AMAQI
8th Jul 2025709 AMAQI
8th Jul 20258410 AMAQI
8th Jul 20258811 AMAQI
8th Jul 20258512 PMAQI
8th Jul 2025621 PMAQI
8th Jul 2025632 PMAQI
8th Jul 2025633 PMAQI
8th Jul 2025624 PMAQI
8th Jul 2025625 PMAQI
8th Jul 2025646 PMAQI
8th Jul 2025667 PMAQI
8th Jul 2025668 PMAQI
8th Jul 2025669 PMAQI
8th Jul 20255610 PMAQI
8th Jul 20255711 PMAQI
9th Jul 20255812 AMAQI
9th Jul 2025591 AMAQI
9th Jul 2025582 AMAQI
9th Jul 2025563 AMAQI
9th Jul 2025574 AMAQI

29°C23/36°C

9th Jul 2025595 AMAQI
9th Jul 2025596 AMAQI
9th Jul 2025597 AMAQI
9th Jul 2025608 AMAQI
9th Jul 2025569 AMAQI
9th Jul 20255810 AMAQI
9th Jul 20256411 AMAQI
9th Jul 20256012 PMAQI
9th Jul 2025621 PMAQI
9th Jul 2025472 PMAQI
9th Jul 2025563 PMAQI
9th Jul 2025684 PMAQI
9th Jul 2025505 PMAQI
9th Jul 2025506 PMAQI
9th Jul 2025527 PMAQI
9th Jul 2025548 PMAQI
9th Jul 2025559 PMAQI
9th Jul 20255210 PMAQI
9th Jul 20255011 PMAQI
10th Jul 20255212 AMAQI
10th Jul 2025521 AMAQI
10th Jul 2025532 AMAQI
10th Jul 2025573 AMAQI
10th Jul 2025574 AMAQI

29°C24/35°C

10th Jul 2025585 AMAQI
10th Jul 2025576 AMAQI
10th Jul 2025587 AMAQI
10th Jul 2025578 AMAQI
10th Jul 2025419 AMAQI
10th Jul 20255210 AMAQI
10th Jul 20255211 AMAQI
10th Jul 20255712 PMAQI
10th Jul 2025461 PMAQI
10th Jul 2025592 PMAQI
10th Jul 2025633 PMAQI
10th Jul 2025624 PMAQI
10th Jul 2025625 PMAQI
10th Jul 2025636 PMAQI
10th Jul 2025467 PMAQI
10th Jul 2025458 PMAQI
10th Jul 2025549 PMAQI
10th Jul 20255710 PMAQI
10th Jul 20255711 PMAQI
11th Jul 20255612 AMAQI
11th Jul 2025571 AMAQI
11th Jul 2025582 AMAQI
11th Jul 2025583 AMAQI
11th Jul 2025584 AMAQI

27°C22/34°C

11th Jul 2025585 AMAQI
11th Jul 2025586 AMAQI
11th Jul 2025557 AMAQI
11th Jul 2025558 AMAQI
11th Jul 2025589 AMAQI
11th Jul 20255810 AMAQI
11th Jul 20255611 AMAQI
11th Jul 20255612 PMAQI
11th Jul 2025601 PMAQI
11th Jul 2025422 PMAQI
11th Jul 2025623 PMAQI
11th Jul 2025604 PMAQI
11th Jul 2025625 PMAQI
11th Jul 2025616 PMAQI
11th Jul 2025617 PMAQI
11th Jul 2025608 PMAQI
11th Jul 2025549 PMAQI
11th Jul 20255210 PMAQI
11th Jul 20255111 PMAQI
12th Jul 20255212 AMAQI
12th Jul 2025521 AMAQI
12th Jul 2025572 AMAQI
12th Jul 2025573 AMAQI
12th Jul 2025574 AMAQI

26°C20/33°C

12th Jul 2025575 AMAQI
12th Jul 2025576 AMAQI
12th Jul 2025567 AMAQI
12th Jul 2025578 AMAQI
12th Jul 2025509 AMAQI
12th Jul 20254510 AMAQI
12th Jul 20254611 AMAQI
12th Jul 20253112 PMAQI
12th Jul 2025551 PMAQI
12th Jul 2025582 PMAQI
12th Jul 2025583 PMAQI
12th Jul 2025584 PMAQI
12th Jul 2025585 PMAQI
12th Jul 2025586 PMAQI
12th Jul 2025567 PMAQI
12th Jul 2025488 PMAQI
12th Jul 2025499 PMAQI
12th Jul 20254810 PMAQI
12th Jul 20255211 PMAQI
13th Jul 20255412 AMAQI
13th Jul 2025551 AMAQI
13th Jul 2025552 AMAQI
13th Jul 2025553 AMAQI
13th Jul 2025554 AMAQI

26°C19/33°C

13th Jul 2025555 AMAQI
13th Jul 2025556 AMAQI
13th Jul 2025547 AMAQI
13th Jul 2025558 AMAQI
13th Jul 2025639 AMAQI
13th Jul 20257210 AMAQI
13th Jul 20257611 AMAQI
13th Jul 20258212 PMAQI
13th Jul 2025781 PMAQI
13th Jul 2025762 PMAQI
13th Jul 2025763 PMAQI
13th Jul 2025754 PMAQI
13th Jul 2025705 PMAQI
13th Jul 2025716 PMAQI
13th Jul 2025647 PMAQI
13th Jul 2025668 PMAQI
13th Jul 2025609 PMAQI
13th Jul 20255910 PMAQI
13th Jul 20255611 PMAQI
14th Jul 20255412 AMAQI
14th Jul 2025551 AMAQI
14th Jul 2025542 AMAQI
14th Jul 2025553 AMAQI
14th Jul 2025554 AMAQI

24°C19/28°C

14th Jul 2025585 AMAQI
14th Jul 2025576 AMAQI
14th Jul 2025577 AMAQI
14th Jul 2025588 AMAQI
14th Jul 2025669 AMAQI
14th Jul 20257010 AMAQI
14th Jul 20257611 AMAQI
14th Jul 20258212 PMAQI
14th Jul 2025821 PMAQI
14th Jul 2025842 PMAQI
14th Jul 2025843 PMAQI
14th Jul 2025744 PMAQI
14th Jul 2025595 PMAQI
14th Jul 2025516 PMAQI
14th Jul 2025407 PMAQI
14th Jul 2025348 PMAQI
14th Jul 2025509 PMAQI
14th Jul 20255010 PMAQI
14th Jul 20254611 PMAQI
15th Jul 20254612 AMAQI
15th Jul 2025531 AMAQI
15th Jul 2025562 AMAQI
15th Jul 2025553 AMAQI
15th Jul 2025564 AMAQI

23°C20/28°C

15th Jul 2025595 AMAQI
15th Jul 2025586 AMAQI
15th Jul 2025587 AMAQI
15th Jul 2025588 AMAQI
15th Jul 2025279 AMAQI
15th Jul 20252110 AMAQI
15th Jul 20253711 AMAQI
15th Jul 20253912 PMAQI
15th Jul 2025301 PMAQI
15th Jul 2025232 PMAQI
15th Jul 2025263 PMAQI
15th Jul 2025284 PMAQI
15th Jul 2025325 PMAQI
15th Jul 2025296 PMAQI
15th Jul 2025297 PMAQI
15th Jul 2025388 PMAQI
15th Jul 2025529 PMAQI
15th Jul 20255210 PMAQI
15th Jul 20255211 PMAQI
16th Jul 20255212 AMAQI
16th Jul 2025541 AMAQI
16th Jul 2025542 AMAQI
16th Jul 2025553 AMAQI
16th Jul 2025544 AMAQI

21°C19/25°C

16th Jul 2025525 AMAQI
16th Jul 2025536 AMAQI
16th Jul 2025527 AMAQI
16th Jul 2025538 AMAQI
16th Jul 2025549 AMAQI
16th Jul 20255610 AMAQI
16th Jul 20255511 AMAQI
16th Jul 20255512 PMAQI
16th Jul 2025521 PMAQI
16th Jul 2025542 PMAQI
16th Jul 2025563 PMAQI
16th Jul 2025444 PMAQI
16th Jul 2025415 PMAQI
16th Jul 2025356 PMAQI
16th Jul 2025307 PMAQI
16th Jul 2025378 PMAQI
16th Jul 2025509 PMAQI
16th Jul 20255110 PMAQI
16th Jul 20254911 PMAQI
17th Jul 20255212 AMAQI
17th Jul 2025531 AMAQI
17th Jul 2025532 AMAQI
17th Jul 2025533 AMAQI
17th Jul 2025534 AMAQI

21°C19/25°C

17th Jul 2025535 AMAQI
17th Jul 2025536 AMAQI
17th Jul 2025537 AMAQI
17th Jul 2025538 AMAQI
17th Jul 2025249 AMAQI
17th Jul 20251710 AMAQI
17th Jul 20251511 AMAQI
17th Jul 20251412 PMAQI
17th Jul 2025231 PMAQI
17th Jul 2025242 PMAQI
17th Jul 2025243 PMAQI
17th Jul 2025234 PMAQI
17th Jul 2025265 PMAQI
17th Jul 2025226 PMAQI
17th Jul 2025227 PMAQI
17th Jul 2025298 PMAQI
17th Jul 2025449 PMAQI
17th Jul 20254310 PMAQI
17th Jul 20254211 PMAQI
18th Jul 20254112 AMAQI
18th Jul 2025471 AMAQI
18th Jul 2025522 AMAQI
18th Jul 2025523 AMAQI
18th Jul 2025524 AMAQI

23°C20/26°C

18th Jul 2025525 AMAQI
18th Jul 2025516 AMAQI
18th Jul 2025517 AMAQI
18th Jul 2025518 AMAQI
18th Jul 2025319 AMAQI
18th Jul 20252510 AMAQI
18th Jul 20252811 AMAQI
18th Jul 20252912 PMAQI
18th Jul 2025321 PMAQI
18th Jul 2025342 PMAQI
18th Jul 2025373 PMAQI
18th Jul 2025384 PMAQI
18th Jul 2025375 PMAQI
18th Jul 2025396 PMAQI
18th Jul 2025387 PMAQI
18th Jul 2025398 PMAQI
18th Jul 2025439 PMAQI
18th Jul 20254210 PMAQI
18th Jul 20254411 PMAQI
19th Jul 20254412 AMAQI
19th Jul 2025491 AMAQI
19th Jul 2025502 AMAQI
19th Jul 2025503 AMAQI
19th Jul 2025504 AMAQI

23°C21/27°C

19th Jul 2025475 AMAQI
19th Jul 2025486 AMAQI
19th Jul 2025477 AMAQI
19th Jul 2025488 AMAQI
19th Jul 2025229 AMAQI
19th Jul 20251210 AMAQI
19th Jul 20251211 AMAQI
19th Jul 20251412 PMAQI
19th Jul 2025181 PMAQI
19th Jul 2025182 PMAQI
19th Jul 2025173 PMAQI
19th Jul 2025194 PMAQI
19th Jul 2025185 PMAQI
19th Jul 2025186 PMAQI
19th Jul 2025187 PMAQI
19th Jul 2025238 PMAQI
19th Jul 2025349 PMAQI
19th Jul 20253310 PMAQI
19th Jul 20253411 PMAQI
20th Jul 20253412 AMAQI
20th Jul 2025421 AMAQI
20th Jul 2025482 AMAQI
20th Jul 2025483 AMAQI
20th Jul 2025464 AMAQI

25°C21/28°C

20th Jul 2025425 AMAQI
20th Jul 2025436 AMAQI
20th Jul 2025427 AMAQI
20th Jul 2025448 AMAQI
20th Jul 2025309 AMAQI
20th Jul 20252110 AMAQI
20th Jul 20252611 AMAQI
20th Jul 20253612 PMAQI
20th Jul 2025371 PMAQI
20th Jul 2025372 PMAQI
20th Jul 2025383 PMAQI
20th Jul 2025384 PMAQI
20th Jul 2025425 PMAQI
20th Jul 2025476 PMAQI
20th Jul 2025517 PMAQI
20th Jul 2025488 PMAQI
20th Jul 2025469 PMAQI
20th Jul 20254710 PMAQI
20th Jul 20254611 PMAQI
21st Jul 20254812 AMAQI
21st Jul 2025431 AMAQI
21st Jul 2025432 AMAQI
21st Jul 2025433 AMAQI
21st Jul 2025434 AMAQI

26°C22/32°C

21st Jul 2025415 AMAQI
21st Jul 2025426 AMAQI
21st Jul 2025427 AMAQI
21st Jul 2025418 AMAQI
21st Jul 2025489 AMAQI
21st Jul 20255310 AMAQI
21st Jul 20255511 AMAQI
21st Jul 20255412 PMAQI
21st Jul 2025501 PMAQI
21st Jul 2025402 PMAQI
21st Jul 2025373 PMAQI
21st Jul 2025374 PMAQI
21st Jul 2025305 PMAQI
21st Jul 2025306 PMAQI
21st Jul 2025357 PMAQI
21st Jul 2025328 PMAQI
21st Jul 2025359 PMAQI
21st Jul 20253310 PMAQI
21st Jul 20253311 PMAQI
22nd Jul 20253412 AMAQI
22nd Jul 2025441 AMAQI
22nd Jul 2025432 AMAQI
22nd Jul 2025433 AMAQI
22nd Jul 2025444 AMAQI

27°C23/31°C

22nd Jul 2025445 AMAQI
22nd Jul 2025466 AMAQI
22nd Jul 2025447 AMAQI
22nd Jul 2025448 AMAQI
22nd Jul 2025299 AMAQI
22nd Jul 20252810 AMAQI
22nd Jul 20253411 AMAQI
22nd Jul 20253412 PMAQI
22nd Jul 2025361 PMAQI
22nd Jul 2025382 PMAQI
22nd Jul 2025363 PMAQI
22nd Jul 2025334 PMAQI
22nd Jul 2025325 PMAQI
22nd Jul 2025346 PMAQI
22nd Jul 2025377 PMAQI
22nd Jul 2025388 PMAQI
22nd Jul 2025409 PMAQI
22nd Jul 20254010 PMAQI
22nd Jul 20253911 PMAQI
23rd Jul 20253812 AMAQI
23rd Jul 2025401 AMAQI
23rd Jul 2025412 AMAQI
23rd Jul 2025433 AMAQI
23rd Jul 2025424 AMAQI

26°C23/30°C

23rd Jul 2025405 AMAQI
23rd Jul 2025406 AMAQI
23rd Jul 2025407 AMAQI
23rd Jul 2025408 AMAQI
23rd Jul 2025449 AMAQI
23rd Jul 20254610 AMAQI
23rd Jul 20255411 AMAQI
23rd Jul 20255312 PMAQI
23rd Jul 2025531 PMAQI
23rd Jul 2025542 PMAQI
23rd Jul 2025533 PMAQI
23rd Jul 2025544 PMAQI
23rd Jul 2025525 PMAQI
23rd Jul 2025546 PMAQI
23rd Jul 2025547 PMAQI
23rd Jul 2025568 PMAQI
23rd Jul 2025529 PMAQI
23rd Jul 20255110 PMAQI
23rd Jul 20255111 PMAQI
24th Jul 20255012 AMAQI
24th Jul 2025421 AMAQI
24th Jul 2025422 AMAQI
24th Jul 2025423 AMAQI
24th Jul 2025424 AMAQI

26°C23/31°C

24th Jul 2025425 AMAQI
24th Jul 2025436 AMAQI
24th Jul 2025427 AMAQI
24th Jul 2025428 AMAQI
24th Jul 2025509 AMAQI
24th Jul 20255410 AMAQI
24th Jul 20255811 AMAQI
24th Jul 20256212 PMAQI
24th Jul 2025601 PMAQI
24th Jul 2025642 PMAQI
24th Jul 2025613 PMAQI
24th Jul 2025644 PMAQI
24th Jul 2025625 PMAQI
24th Jul 2025646 PMAQI
24th Jul 2025637 PMAQI
24th Jul 2025608 PMAQI
24th Jul 2025569 PMAQI
24th Jul 20255810 PMAQI
24th Jul 20255811 PMAQI
25th Jul 20255812 AMAQI
25th Jul 2025601 AMAQI
25th Jul 2025522 AMAQI
25th Jul 2025453 AMAQI
25th Jul 2025474 AMAQI

27°C23/33°C

25th Jul 2025495 AMAQI
25th Jul 2025496 AMAQI
25th Jul 2025507 AMAQI
25th Jul 2025508 AMAQI
25th Jul 2025679 AMAQI
25th Jul 20257510 AMAQI
25th Jul 20257211 AMAQI
25th Jul 20256412 PMAQI
25th Jul 2025541 PMAQI
25th Jul 2025542 PMAQI
25th Jul 2025583 PMAQI
25th Jul 2025564 PMAQI
25th Jul 2025515 PMAQI
25th Jul 2025526 PMAQI
25th Jul 2025527 PMAQI
25th Jul 2025568 PMAQI
25th Jul 2025529 PMAQI
25th Jul 20255210 PMAQI
25th Jul 20255411 PMAQI
26th Jul 20255612 AMAQI
26th Jul 2025531 AMAQI
26th Jul 2025522 AMAQI
26th Jul 2025533 AMAQI
26th Jul 2025534 AMAQI

28°C23/35°C

26th Jul 2025545 AMAQI
26th Jul 2025546 AMAQI
26th Jul 2025547 AMAQI
26th Jul 2025548 AMAQI
26th Jul 2025529 AMAQI
26th Jul 20254410 AMAQI
26th Jul 20254211 AMAQI
26th Jul 20253412 PMAQI
26th Jul 2025341 PMAQI
26th Jul 2025362 PMAQI
26th Jul 2025343 PMAQI
26th Jul 2025344 PMAQI
26th Jul 2025315 PMAQI
26th Jul 2025316 PMAQI
26th Jul 2025347 PMAQI
26th Jul 2025408 PMAQI
26th Jul 2025509 PMAQI
26th Jul 20255010 PMAQI
26th Jul 20254811 PMAQI
27th Jul 20255012 AMAQI
27th Jul 2025531 AMAQI
27th Jul 2025532 AMAQI
27th Jul 2025533 AMAQI
27th Jul 2025534 AMAQI

29°C24/35°C

27th Jul 2025525 AMAQI
27th Jul 2025526 AMAQI
27th Jul 2025527 AMAQI
27th Jul 2025528 AMAQI
27th Jul 2025459 AMAQI
27th Jul 20253710 AMAQI
27th Jul 20252611 AMAQI
27th Jul 20252212 PMAQI
27th Jul 2025231 PMAQI
27th Jul 2025242 PMAQI
27th Jul 2025243 PMAQI
27th Jul 2025244 PMAQI
27th Jul 2025375 PMAQI
27th Jul 2025306 PMAQI
27th Jul 2025377 PMAQI
27th Jul 2025398 PMAQI
27th Jul 2025469 PMAQI
27th Jul 20255210 PMAQI
27th Jul 20255311 PMAQI
28th Jul 20255412 AMAQI
28th Jul 2025521 AMAQI
28th Jul 2025522 AMAQI
28th Jul 2025523 AMAQI
28th Jul 2025514 AMAQI

29°C24/35°C

28th Jul 2025495 AMAQI
28th Jul 2025486 AMAQI
28th Jul 2025497 AMAQI
28th Jul 2025498 AMAQI
28th Jul 2025649 AMAQI
28th Jul 20257210 AMAQI
28th Jul 20257211 AMAQI
28th Jul 20257712 PMAQI
28th Jul 2025771 PMAQI
28th Jul 2025662 PMAQI
28th Jul 2025653 PMAQI
28th Jul 2025704 PMAQI
28th Jul 2025785 PMAQI
28th Jul 2025686 PMAQI
28th Jul 2025657 PMAQI
28th Jul 2025538 PMAQI
28th Jul 2025519 PMAQI
28th Jul 20255210 PMAQI
28th Jul 20255911 PMAQI
29th Jul 20256212 AMAQI
29th Jul 2025551 AMAQI
29th Jul 2025522 AMAQI
29th Jul 2025523 AMAQI
29th Jul 2025524 AMAQI

28°C24/33°C

29th Jul 2025555 AMAQI
29th Jul 2025556 AMAQI
29th Jul 2025557 AMAQI
29th Jul 2025558 AMAQI
29th Jul 2025669 AMAQI
29th Jul 20257310 AMAQI
29th Jul 20258011 AMAQI
29th Jul 20258012 PMAQI
29th Jul 2025801 PMAQI
29th Jul 2025782 PMAQI
29th Jul 2025703 PMAQI
29th Jul 2025574 PMAQI
29th Jul 2025575 PMAQI
29th Jul 2025576 PMAQI
29th Jul 2025627 PMAQI
29th Jul 2025648 PMAQI
29th Jul 2025649 PMAQI
29th Jul 20256210 PMAQI
29th Jul 20256311 PMAQI
30th Jul 20256212 AMAQI
30th Jul 2025551 AMAQI
30th Jul 2025542 AMAQI
30th Jul 2025543 AMAQI
30th Jul 2025564 AMAQI

28°C23/35°C

30th Jul 2025585 AMAQI
30th Jul 2025586 AMAQI
30th Jul 2025587 AMAQI
30th Jul 2025588 AMAQI
30th Jul 2025709 AMAQI
30th Jul 20257610 AMAQI
30th Jul 20257411 AMAQI
30th Jul 20257112 PMAQI
30th Jul 2025731 PMAQI
30th Jul 2025702 PMAQI
30th Jul 2025543 PMAQI
30th Jul 2025534 PMAQI
30th Jul 2025465 PMAQI
30th Jul 2025366 PMAQI
30th Jul 2025367 PMAQI
30th Jul 2025418 PMAQI
30th Jul 2025529 PMAQI
30th Jul 20255210 PMAQI
30th Jul 20255411 PMAQI
31st Jul 20255512 AMAQI
31st Jul 2025561 AMAQI
31st Jul 2025562 AMAQI
31st Jul 2025563 AMAQI
31st Jul 2025564 AMAQI

28°C23/34°C

31st Jul 2025565 AMAQI
31st Jul 2025566 AMAQI
31st Jul 2025567 AMAQI
31st Jul 2025568 AMAQI
31st Jul 2025569 AMAQI
31st Jul 20255610 AMAQI
31st Jul 20255511 AMAQI
31st Jul 20255312 PMAQI
31st Jul 2025551 PMAQI
31st Jul 2025602 PMAQI
31st Jul 2025743 PMAQI
31st Jul 2025744 PMAQI
31st Jul 2025715 PMAQI
31st Jul 2025526 PMAQI
31st Jul 2025497 PMAQI
31st Jul 2025518 PMAQI
31st Jul 2025539 PMAQI
31st Jul 20255510 PMAQI
31st Jul 20255511 PMAQI
1st Aug 20255612 AMAQI
1st Aug 2025541 AMAQI
1st Aug 2025542 AMAQI
1st Aug 2025543 AMAQI
1st Aug 2025564 AMAQI

27°C24/33°C

1st Aug 2025565 AMAQI
1st Aug 2025566 AMAQI
1st Aug 2025567 AMAQI
1st Aug 2025558 AMAQI
1st Aug 2025529 AMAQI
1st Aug 20255810 AMAQI
1st Aug 20255711 AMAQI
1st Aug 20255612 PMAQI
1st Aug 2025581 PMAQI
1st Aug 2025602 PMAQI
1st Aug 2025613 PMAQI
1st Aug 2025614 PMAQI
1st Aug 2025625 PMAQI
1st Aug 2025606 PMAQI
1st Aug 2025587 PMAQI
1st Aug 2025578 PMAQI
1st Aug 2025629 PMAQI
1st Aug 20256110 PMAQI
1st Aug 20256011 PMAQI
2nd Aug 20256012 AMAQI
2nd Aug 2025541 AMAQI
2nd Aug 2025552 AMAQI
2nd Aug 2025553 AMAQI
2nd Aug 2025554 AMAQI

28°C24/34°C

2nd Aug 2025555 AMAQI
2nd Aug 2025556 AMAQI
2nd Aug 2025567 AMAQI
2nd Aug 2025568 AMAQI
2nd Aug 2025779 AMAQI
2nd Aug 20257910 AMAQI
2nd Aug 20257111 AMAQI
2nd Aug 20258012 PMAQI
2nd Aug 2025781 PMAQI
2nd Aug 2025622 PMAQI
2nd Aug 2025603 PMAQI
2nd Aug 2025624 PMAQI
2nd Aug 2025645 PMAQI
2nd Aug 2025716 PMAQI
2nd Aug 2025667 PMAQI
2nd Aug 2025608 PMAQI
2nd Aug 2025599 PMAQI
2nd Aug 20255910 PMAQI
2nd Aug 20256111 PMAQI
3rd Aug 20255612 AMAQI
3rd Aug 2025561 AMAQI
3rd Aug 2025562 AMAQI
3rd Aug 2025553 AMAQI
3rd Aug 2025574 AMAQI

28°C24/32°C

3rd Aug 2025585 AMAQI
3rd Aug 2025576 AMAQI
3rd Aug 2025587 AMAQI
3rd Aug 2025598 AMAQI
3rd Aug 2025649 AMAQI
3rd Aug 20256310 AMAQI
3rd Aug 20256411 AMAQI
3rd Aug 20256512 PMAQI
3rd Aug 2025681 PMAQI
3rd Aug 2025722 PMAQI
3rd Aug 2025733 PMAQI
3rd Aug 2025684 PMAQI
3rd Aug 2025655 PMAQI
3rd Aug 2025676 PMAQI
3rd Aug 2025647 PMAQI
3rd Aug 2025608 PMAQI
3rd Aug 2025589 PMAQI
3rd Aug 20255810 PMAQI
3rd Aug 20255111 PMAQI
4th Aug 20255212 AMAQI
4th Aug 2025561 AMAQI
4th Aug 2025562 AMAQI
4th Aug 2025573 AMAQI
4th Aug 2025584 AMAQI

26°C23/28°C

4th Aug 2025585 AMAQI
4th Aug 2025586 AMAQI
4th Aug 2025597 AMAQI
4th Aug 2025598 AMAQI
4th Aug 2025359 AMAQI
4th Aug 20253710 AMAQI
4th Aug 20253811 AMAQI
4th Aug 20253812 PMAQI
4th Aug 2025391 PMAQI
4th Aug 2025372 PMAQI
4th Aug 2025373 PMAQI
4th Aug 2025454 PMAQI
4th Aug 2025425 PMAQI
4th Aug 2025466 PMAQI
4th Aug 2025507 PMAQI
4th Aug 2025548 PMAQI
4th Aug 2025569 PMAQI
4th Aug 20255610 PMAQI
4th Aug 20255611 PMAQI
5th Aug 20255512 AMAQI
5th Aug 2025551 AMAQI
5th Aug 2025562 AMAQI
5th Aug 2025563 AMAQI
5th Aug 2025554 AMAQI

26°C23/30°C

5th Aug 2025555 AMAQI
5 AM
5th Aug 2025556 AMAQI
5th Aug 2025557 AMAQI
5th Aug 2025548 AMAQI
5th Aug 2025559 AMAQI
5th Aug 20255710 AMAQI
5th Aug 20255711 AMAQI
5th Aug 20255712 PMAQI
12 PM
5th Aug 2025501 PMAQI
5th Aug 2025522 PMAQI
5th Aug 2025483 PMAQI
5th Aug 2025394 PMAQI
5th Aug 2025445 PMAQI
5th Aug 2025416 PMAQI
5th Aug 2025417 PMAQI
7 PM
5th Aug 2025468 PMAQI
5th Aug 2025489 PMAQI
12 AM
4 AM

--°C/°C

Day time
Avg. Highest Time
5 AM - 7 PM

52AQI

15 hours / Day
450 hours / Month
Avg. Lowest Time
5 AM - 7 PM

52AQI

15 hours / Day
450 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 7 PM (Avg. 52), while the lowest AQI was between 5 AM to 7 PM (Avg. 52).
Night time
Avg. Highest Time
12 AM - 4 AM

52AQI

5 hours / Day
150 hours / Month
Avg. Lowest Time
8 PM

49AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 4 AM (Avg. 52), while the lowest AQI was between 8 PM to 8 PM (Avg. 49).

2025 Days Vs Air Quality

Seonggeoeup, Chonan, Chungnam, South Korea

2025

16%

35

74%

159

10%

22

Total number of days with different AQI categories in last 217 days in 2025 (148 days remaining)

Good
35 Days
Moderate
159 Days
Poor
22 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 16%

Health Risk Level:

Extreme

In 2025, 16% of 217 days were within WHO’s safe air quality limits. The risk of health issues is Extreme, potentially causing respiratory problems, heart disease, skin issues, and stress, especially for children, the elderly, and those with pre-existing conditions.

Annual Air Quality Insights

Seonggeoeup, Chonan, 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.

1st January 2025
79AQI
2nd January 2025
74AQI
3rd January 2025
68AQI
4th January 2025
67AQI
5th January 2025
72AQI
6th January 2025
102AQI
7th January 2025
67AQI
8th January 2025
76AQI
9th January 2025
44AQI
10th January 2025
66AQI
11th January 2025
63AQI
12th January 2025
92AQI
13th January 2025
98AQI
14th January 2025
104AQI
15th January 2025
63AQI
16th January 2025
79AQI
17th January 2025
104AQI
18th January 2025
94AQI
19th January 2025
100AQI
20th January 2025
130AQI
21st January 2025
146AQI
22nd January 2025
148AQI
23rd January 2025
138AQI
24th January 2025
140AQI
25th January 2025
92AQI
26th January 2025
66AQI
27th January 2025
68AQI
28th January 2025
46AQI
29th January 2025
51AQI
30th January 2025
46AQI
31st January 2025
80AQI
1st February 2025
87AQI
2nd February 2025
97AQI
3rd February 2025
62AQI
4th February 2025
56AQI
5th February 2025
53AQI
6th February 2025
56AQI
7th February 2025
53AQI
8th February 2025
52AQI
9th February 2025
61AQI
10th February 2025
63AQI
11th February 2025
91AQI
12th February 2025
83AQI
13th February 2025
58AQI
14th February 2025
93AQI
15th February 2025
63AQI
16th February 2025
113AQI
17th February 2025
55AQI
18th February 2025
68AQI
19th February 2025
52AQI
20th February 2025
60AQI
21st February 2025
59AQI
22nd February 2025
62AQI
23rd February 2025
60AQI
24th February 2025
61AQI
25th February 2025
57AQI
26th February 2025
82AQI
27th February 2025
64AQI
28th February 2025
92AQI
1st March 2025
114AQI
2nd March 2025
92AQI
3rd March 2025
60AQI
4th March 2025
49AQI
5th March 2025
43AQI
6th March 2025
84AQI
7th March 2025
99AQI
8th March 2025
104AQI
9th March 2025
113AQI
10th March 2025
123AQI
11th March 2025
116AQI
12th March 2025
106AQI
13th March 2025
104AQI
14th March 2025
90AQI
15th March 2025
67AQI
16th March 2025
79AQI
17th March 2025
69AQI
18th March 2025
78AQI
19th March 2025
90AQI
20th March 2025
95AQI
21st March 2025
103AQI
22nd March 2025
108AQI
23rd March 2025
111AQI
24th March 2025
109AQI
25th March 2025
129AQI
26th March 2025
90AQI
27th March 2025
91AQI
28th March 2025
68AQI
29th March 2025
56AQI
30th March 2025
54AQI
31st March 2025
62AQI
1st April 2025
87AQI
2nd April 2025
89AQI
3rd April 2025
89AQI
4th April 2025
91AQI
5th April 2025
78AQI
6th April 2025
71AQI
7th April 2025
70AQI
8th April 2025
78AQI
9th April 2025
69AQI
10th April 2025
79AQI
11th April 2025
93AQI
12th April 2025
68AQI
13th April 2025
65AQI
14th April 2025
50AQI
15th April 2025
60AQI
16th April 2025
61AQI
17th April 2025
67AQI
18th April 2025
83AQI
19th April 2025
50AQI
20th April 2025
67AQI
21st April 2025
57AQI
22nd April 2025
46AQI
23rd April 2025
43AQI
24th April 2025
60AQI
25th April 2025
64AQI
26th April 2025
55AQI
27th April 2025
46AQI
28th April 2025
62AQI
29th April 2025
71AQI
30th April 2025
63AQI
1st May 2025
58AQI
2nd May 2025
51AQI
3rd May 2025
53AQI
4th May 2025
49AQI
5th May 2025
48AQI
6th May 2025
50AQI
7th May 2025
53AQI
8th May 2025
66AQI
9th May 2025
51AQI
10th May 2025
51AQI
11th May 2025
66AQI
12th May 2025
69AQI
13th May 2025
74AQI
14th May 2025
76AQI
15th May 2025
62AQI
16th May 2025
45AQI
17th May 2025
37AQI
18th May 2025
60AQI
19th May 2025
62AQI
20th May 2025
47AQI
21st May 2025
47AQI
22nd May 2025
55AQI
23rd May 2025
63AQI
24th May 2025
49AQI
25th May 2025
51AQI
26th May 2025
63AQI
27th May 2025
75AQI
28th May 2025
79AQI
29th May 2025
82AQI
30th May 2025
73AQI
31st May 2025
81AQI
1st June 2025
90AQI
2nd June 2025
103AQI
3rd June 2025
74AQI
4th June 2025
62AQI
5th June 2025
60AQI
6th June 2025
64AQI
7th June 2025
72AQI
8th June 2025
63AQI
9th June 2025
64AQI
10th June 2025
61AQI
11th June 2025
53AQI
12th June 2025
60AQI
13th June 2025
72AQI
14th June 2025
52AQI
15th June 2025
59AQI
16th June 2025
61AQI
17th June 2025
63AQI
18th June 2025
65AQI
19th June 2025
65AQI
20th June 2025
54AQI
21st June 2025
51AQI
22nd June 2025
51AQI
23rd June 2025
56AQI
24th June 2025
57AQI
25th June 2025
49AQI
26th June 2025
53AQI
27th June 2025
63AQI
28th June 2025
60AQI
29th June 2025
54AQI
30th June 2025
51AQI
1st July 2025
46AQI
2nd July 2025
37AQI
3rd July 2025
47AQI
4th July 2025
45AQI
5th July 2025
46AQI
6th July 2025
52AQI
7th July 2025
62AQI
8th July 2025
63AQI
9th July 2025
56AQI
10th July 2025
55AQI
11th July 2025
57AQI
12th July 2025
53AQI
13th July 2025
63AQI
14th July 2025
58AQI
15th July 2025
43AQI
16th July 2025
49AQI
17th July 2025
37AQI
18th July 2025
42AQI
19th July 2025
32AQI
20th July 2025
42AQI
21st July 2025
40AQI
22nd July 2025
38AQI
23rd July 2025
48AQI
24th July 2025
53AQI
25th July 2025
55AQI
26th July 2025
45AQI
27th July 2025
42AQI
28th July 2025
60AQI
29th July 2025
62AQI
30th July 2025
55AQI
31st July 2025
57AQI
1st August 2025
57AQI
2nd August 2025
62AQI
3rd August 2025
61AQI
4th August 2025
53AQI

86AQI

68AQI

89AQI

68AQI

60AQI

62AQI

50AQI

58AQI

No. of days

Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days

202569AQI

3
20
8
27
1
2
17
12
5
25
8
23
1
28
1
16
15
4
35
159
22

Highest AQI recorded in

March

89AQI

Lowest AQI recorded in

July

50AQI

202465AQI

2
17
11
1
9
11
7
2
4
19
6
2
24
4
11
19
1
3
27
24
7
13
18
26
4
17
14
6
20
4
29
2
117
209
35
3

Highest AQI recorded in

January

89AQI

Lowest AQI recorded in

July

38AQI

202373AQI

3
17
7
4
13
11
4
1
14
13
3
1
21
7
1
6
23
2
8
22
17
12
2
13
18
15
15
10
21
9
16
4
7
16
6
2
90
208
52
14

Highest AQI recorded in

February

108AQI

Lowest AQI recorded in

September

51AQI

202276AQI

15
12
3
12
6
4
4
11
16
4
19
6
2
28
1
16
14
8
13
1
18
9
1
13
15
3
4
16
9
1
2
24
5
72
176
59
8

Highest AQI recorded in

January

105AQI

Lowest AQI recorded in

August

17AQI

202177AQI

18
10
2
16
7
5
1
14
11
4
1
2
25
3
6
21
2
1
1
3
26
1
12
19
13
18
24
6
8
18
5
5
16
7
2
2
14
13
2
76
211
59
15
2
1

Highest AQI recorded in

March

108AQI

Lowest AQI recorded in

September

42AQI

202066AQI

3
9
1
3
18
5
12
1
8
22
20
11
16
15
17
11
3
22
6
3
17
9
1
15
15
1
78
152
32
2

Highest AQI recorded in

December

99AQI

Lowest AQI recorded in

July

41AQI

Most & Least Polluted Years Over the Last 6 Years

Most Polluted Year Recorded
2021(Avg.)
77AQI
Least Polluted Year Recorded
2024(Avg.)
65AQI

Seonggeoeup's annual 2025 AQI (69) shows an average percentage change of -3.1% (improved AQI) compared to previous years: 2020 (66), 2021 (77), 2022 (76), 2023 (73), 2024 (65).