Cheonggye Dong, Osan, Gyeonggi, 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
Cheonggye Dong, Osan, Gyeonggi, South Korea
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
26th Aug 2023
94AQILowest AQI recorded on
31st Aug 2022
22AQISame Day Analysis (2nd August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 62 of Moderate air quality, showing improvement over 2023 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 3rd Aug - 4th Aug 2025
Cheonggye Dong, Osan, Gyeonggi, South Korea
AQI
Day
Night
.
5 AM3rd Aug 2025
7 PM
4 AM4th Aug 2025
Day time
Avg. Highest Time
3PM3rd Aug
72AQI
Avg. Lowest Time
6AM3rd Aug
58AQI
Night time
Avg. Highest Time
8PM3rd Aug
60AQI
Avg. Lowest Time
11PM3rd Aug
52AQI
In the last 24 hours,
Cheonggye Dong's AQI reached its highest point of 72 at 3 PM during the Day, while the lowest point, 52, was recorded at 11 PM during the Night between 3rd Aug and 4th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Cheonggye Dong, Osan, Gyeonggi, South Korea
JulAug
05th - 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 - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th
Day
Night
5th Jul 2025525 AMAQI
5th Jul 2025526 AMAQI
5th Jul 2025527 AMAQI
5th Jul 2025528 AMAQI
5th Jul 2025439 AMAQI
5th Jul 20254110 AMAQI
5th Jul 20254711 AMAQI
5th Jul 20255112 PMAQI
5th Jul 2025451 PMAQI
5th Jul 2025522 PMAQI
5th Jul 2025443 PMAQI
5th Jul 2025474 PMAQI
5th Jul 2025475 PMAQI
5th Jul 2025456 PMAQI
5th Jul 2025467 PMAQI
5th Jul 2025478 PMAQI
5th Jul 2025509 PMAQI
5th Jul 20254810 PMAQI
5th Jul 20255111 PMAQI
6th Jul 20255312 AMAQI
6th Jul 2025521 AMAQI
6th Jul 2025522 AMAQI
6th Jul 2025523 AMAQI
6th Jul 2025514 AMAQI
28°C23/33°C
6th Jul 2025515 AMAQI
6th Jul 2025516 AMAQI
6th Jul 2025527 AMAQI
6th Jul 2025528 AMAQI
6th Jul 2025479 AMAQI
6th Jul 20254510 AMAQI
6th Jul 20255211 AMAQI
6th Jul 20256112 PMAQI
6th Jul 2025571 PMAQI
6th Jul 2025542 PMAQI
6th Jul 2025563 PMAQI
6th Jul 2025554 PMAQI
6th Jul 2025565 PMAQI
6th Jul 2025606 PMAQI
6th Jul 2025587 PMAQI
6th Jul 2025548 PMAQI
6th Jul 2025529 PMAQI
6th Jul 20255310 PMAQI
6th Jul 20255311 PMAQI
7th Jul 20255212 AMAQI
7th Jul 2025521 AMAQI
7th Jul 2025512 AMAQI
7th Jul 2025523 AMAQI
7th Jul 2025524 AMAQI
28°C24/34°C
7th Jul 2025525 AMAQI
7th Jul 2025526 AMAQI
7th Jul 2025527 AMAQI
7th Jul 2025528 AMAQI
7th Jul 2025619 AMAQI
7th Jul 20256510 AMAQI
7th Jul 20257611 AMAQI
7th Jul 20257612 PMAQI
7th Jul 2025751 PMAQI
7th Jul 2025812 PMAQI
7th Jul 2025853 PMAQI
7th Jul 2025854 PMAQI
7th Jul 2025825 PMAQI
7th Jul 2025826 PMAQI
7th Jul 2025887 PMAQI
7th Jul 2025858 PMAQI
7th Jul 2025679 PMAQI
7th Jul 20256710 PMAQI
7th Jul 20256611 PMAQI
8th Jul 20256612 AMAQI
8th Jul 2025661 AMAQI
8th Jul 2025602 AMAQI
8th Jul 2025523 AMAQI
8th Jul 2025544 AMAQI
29°C25/34°C
8th Jul 2025565 AMAQI
8th Jul 2025566 AMAQI
8th Jul 2025567 AMAQI
8th Jul 2025568 AMAQI
8th Jul 2025869 AMAQI
8th Jul 20258710 AMAQI
8th Jul 20258011 AMAQI
8th Jul 20257612 PMAQI
8th Jul 2025761 PMAQI
8th Jul 2025752 PMAQI
8th Jul 2025783 PMAQI
8th Jul 2025774 PMAQI
8th Jul 2025765 PMAQI
8th Jul 2025776 PMAQI
8th Jul 2025777 PMAQI
8th Jul 2025738 PMAQI
8th Jul 2025649 PMAQI
8th Jul 20255610 PMAQI
8th Jul 20255711 PMAQI
9th Jul 20255712 AMAQI
9th Jul 2025571 AMAQI
9th Jul 2025582 AMAQI
9th Jul 2025583 AMAQI
9th Jul 2025594 AMAQI
31°C26/37°C
9th Jul 2025625 AMAQI
9th Jul 2025626 AMAQI
9th Jul 2025627 AMAQI
9th Jul 2025628 AMAQI
9th Jul 2025639 AMAQI
9th Jul 20256210 AMAQI
9th Jul 20255611 AMAQI
9th Jul 20255512 PMAQI
9th Jul 2025551 PMAQI
9th Jul 2025542 PMAQI
9th Jul 2025463 PMAQI
9th Jul 2025474 PMAQI
9th Jul 2025445 PMAQI
9th Jul 2025466 PMAQI
9th Jul 2025497 PMAQI
9th Jul 2025578 PMAQI
9th Jul 2025579 PMAQI
9th Jul 20255710 PMAQI
9th Jul 20255811 PMAQI
10th Jul 20255612 AMAQI
10th Jul 2025571 AMAQI
10th Jul 2025572 AMAQI
10th Jul 2025593 AMAQI
10th Jul 2025594 AMAQI
31°C26/36°C
10th Jul 2025595 AMAQI
10th Jul 2025596 AMAQI
10th Jul 2025597 AMAQI
10th Jul 2025598 AMAQI
10th Jul 2025479 AMAQI
10th Jul 20253710 AMAQI
10th Jul 20253511 AMAQI
10th Jul 20253012 PMAQI
10th Jul 2025341 PMAQI
10th Jul 2025402 PMAQI
10th Jul 2025423 PMAQI
10th Jul 2025424 PMAQI
10th Jul 2025445 PMAQI
10th Jul 2025436 PMAQI
10th Jul 2025407 PMAQI
10th Jul 2025448 PMAQI
10th Jul 2025539 PMAQI
10th Jul 20255510 PMAQI
10th Jul 20255411 PMAQI
11th Jul 20255512 AMAQI
11th Jul 2025571 AMAQI
11th Jul 2025582 AMAQI
11th Jul 2025583 AMAQI
11th Jul 2025584 AMAQI
30°C26/36°C
11th Jul 2025565 AMAQI
11th Jul 2025586 AMAQI
11th Jul 2025567 AMAQI
11th Jul 2025558 AMAQI
11th Jul 2025409 AMAQI
11th Jul 20253410 AMAQI
11th Jul 20253811 AMAQI
11th Jul 20253612 PMAQI
11th Jul 2025381 PMAQI
11th Jul 2025382 PMAQI
11th Jul 2025383 PMAQI
11th Jul 2025364 PMAQI
11th Jul 2025395 PMAQI
11th Jul 2025406 PMAQI
11th Jul 2025417 PMAQI
11th Jul 2025448 PMAQI
11th Jul 2025529 PMAQI
11th Jul 20255410 PMAQI
11th Jul 20255411 PMAQI
12th Jul 20255412 AMAQI
12th Jul 2025541 AMAQI
12th Jul 2025562 AMAQI
12th Jul 2025573 AMAQI
12th Jul 2025564 AMAQI
29°C24/35°C
12th Jul 2025555 AMAQI
12th Jul 2025556 AMAQI
12th Jul 2025557 AMAQI
12th Jul 2025558 AMAQI
12th Jul 2025399 AMAQI
12th Jul 20253310 AMAQI
12th Jul 20253011 AMAQI
12th Jul 20252512 PMAQI
12th Jul 2025401 PMAQI
12th Jul 2025362 PMAQI
12th Jul 2025373 PMAQI
12th Jul 2025384 PMAQI
12th Jul 2025455 PMAQI
12th Jul 2025366 PMAQI
12th Jul 2025347 PMAQI
12th Jul 2025408 PMAQI
12th Jul 2025529 PMAQI
12th Jul 20255310 PMAQI
12th Jul 20255311 PMAQI
13th Jul 20255412 AMAQI
13th Jul 2025541 AMAQI
13th Jul 2025552 AMAQI
13th Jul 2025553 AMAQI
13th Jul 2025544 AMAQI
29°C23/34°C
13th Jul 2025535 AMAQI
13th Jul 2025536 AMAQI
13th Jul 2025537 AMAQI
13th Jul 2025538 AMAQI
13th Jul 2025599 AMAQI
13th Jul 20256410 AMAQI
13th Jul 20256111 AMAQI
13th Jul 20255812 PMAQI
13th Jul 2025641 PMAQI
13th Jul 2025692 PMAQI
13th Jul 2025723 PMAQI
13th Jul 2025704 PMAQI
13th Jul 2025695 PMAQI
13th Jul 2025716 PMAQI
13th Jul 2025717 PMAQI
13th Jul 2025748 PMAQI
13th Jul 2025669 PMAQI
13th Jul 20256610 PMAQI
13th Jul 20257011 PMAQI
14th Jul 20256812 AMAQI
14th Jul 2025551 AMAQI
14th Jul 2025542 AMAQI
14th Jul 2025543 AMAQI
14th Jul 2025544 AMAQI
26°C23/30°C
14th Jul 2025565 AMAQI
14th Jul 2025566 AMAQI
14th Jul 2025567 AMAQI
14th Jul 2025568 AMAQI
14th Jul 2025789 AMAQI
14th Jul 20258610 AMAQI
14th Jul 20258411 AMAQI
14th Jul 20258412 PMAQI
14th Jul 2025731 PMAQI
14th Jul 2025642 PMAQI
14th Jul 2025553 PMAQI
14th Jul 2025344 PMAQI
14th Jul 2025305 PMAQI
14th Jul 2025336 PMAQI
14th Jul 2025327 PMAQI
14th Jul 2025338 PMAQI
14th Jul 2025509 PMAQI
14th Jul 20255210 PMAQI
14th Jul 20255011 PMAQI
15th Jul 20254812 AMAQI
15th Jul 2025551 AMAQI
15th Jul 2025552 AMAQI
15th Jul 2025563 AMAQI
15th Jul 2025584 AMAQI
23°C20/28°C
15th Jul 2025595 AMAQI
15th Jul 2025596 AMAQI
15th Jul 2025597 AMAQI
15th Jul 2025608 AMAQI
15th Jul 2025319 AMAQI
15th Jul 20252410 AMAQI
15th Jul 20252411 AMAQI
15th Jul 20252612 PMAQI
15th Jul 2025381 PMAQI
15th Jul 2025292 PMAQI
15th Jul 2025263 PMAQI
15th Jul 2025254 PMAQI
15th Jul 2025305 PMAQI
15th Jul 2025396 PMAQI
15th Jul 2025397 PMAQI
15th Jul 2025408 PMAQI
15th Jul 2025519 PMAQI
15th Jul 20255110 PMAQI
15th Jul 20255111 PMAQI
16th Jul 20255412 AMAQI
16th Jul 2025561 AMAQI
16th Jul 2025552 AMAQI
16th Jul 2025553 AMAQI
16th Jul 2025554 AMAQI
22°C20/25°C
16th Jul 2025535 AMAQI
16th Jul 2025536 AMAQI
16th Jul 2025537 AMAQI
16th Jul 2025538 AMAQI
16th Jul 2025649 AMAQI
16th Jul 20256610 AMAQI
16th Jul 20256611 AMAQI
16th Jul 20256512 PMAQI
16th Jul 2025481 PMAQI
16th Jul 2025492 PMAQI
16th Jul 2025513 PMAQI
16th Jul 2025544 PMAQI
16th Jul 2025545 PMAQI
16th Jul 2025536 PMAQI
16th Jul 2025347 PMAQI
16th Jul 2025338 PMAQI
16th Jul 2025479 PMAQI
16th Jul 20254610 PMAQI
16th Jul 20255011 PMAQI
17th Jul 20255012 AMAQI
17th Jul 2025541 AMAQI
17th Jul 2025542 AMAQI
17th Jul 2025543 AMAQI
17th Jul 2025544 AMAQI
21°C20/23°C
17th Jul 2025545 AMAQI
17th Jul 2025556 AMAQI
17th Jul 2025557 AMAQI
17th Jul 2025558 AMAQI
17th Jul 2025289 AMAQI
17th Jul 20251610 AMAQI
17th Jul 20252011 AMAQI
17th Jul 20251812 PMAQI
17th Jul 2025211 PMAQI
17th Jul 2025202 PMAQI
17th Jul 2025213 PMAQI
17th Jul 2025204 PMAQI
17th Jul 2025225 PMAQI
17th Jul 2025236 PMAQI
17th Jul 2025227 PMAQI
17th Jul 2025288 PMAQI
17th Jul 2025429 PMAQI
17th Jul 20254310 PMAQI
17th Jul 20254111 PMAQI
18th Jul 20254212 AMAQI
18th Jul 2025501 AMAQI
18th Jul 2025542 AMAQI
18th Jul 2025533 AMAQI
18th Jul 2025524 AMAQI
23°C21/25°C
18th Jul 2025515 AMAQI
18th Jul 2025516 AMAQI
18th Jul 2025527 AMAQI
18th Jul 2025508 AMAQI
18th Jul 2025269 AMAQI
18th Jul 20252110 AMAQI
18th Jul 20252911 AMAQI
18th Jul 20252612 PMAQI
18th Jul 2025281 PMAQI
18th Jul 2025292 PMAQI
18th Jul 2025393 PMAQI
18th Jul 2025404 PMAQI
18th Jul 2025345 PMAQI
18th Jul 2025336 PMAQI
18th Jul 2025307 PMAQI
18th Jul 2025338 PMAQI
18th Jul 2025449 PMAQI
18th Jul 20254310 PMAQI
18th Jul 20255011 PMAQI
19th Jul 20255112 AMAQI
19th Jul 2025491 AMAQI
19th Jul 2025512 AMAQI
19th Jul 2025523 AMAQI
19th Jul 2025504 AMAQI
23°C22/27°C
19th Jul 2025465 AMAQI
19th Jul 2025466 AMAQI
19th Jul 2025477 AMAQI
19th Jul 2025478 AMAQI
19th Jul 2025229 AMAQI
19th Jul 20251510 AMAQI
19th Jul 20251211 AMAQI
19th Jul 20251412 PMAQI
19th Jul 2025201 PMAQI
19th Jul 2025162 PMAQI
19th Jul 2025163 PMAQI
19th Jul 2025184 PMAQI
19th Jul 2025195 PMAQI
19th Jul 2025176 PMAQI
19th Jul 2025167 PMAQI
19th Jul 2025228 PMAQI
19th Jul 2025349 PMAQI
19th Jul 20253710 PMAQI
19th Jul 20253711 PMAQI
20th Jul 20253612 AMAQI
20th Jul 2025461 AMAQI
20th Jul 2025492 AMAQI
20th Jul 2025493 AMAQI
20th Jul 2025464 AMAQI
24°C22/28°C
20th Jul 2025425 AMAQI
20th Jul 2025436 AMAQI
20th Jul 2025427 AMAQI
20th Jul 2025428 AMAQI
20th Jul 2025349 AMAQI
20th Jul 20253010 AMAQI
20th Jul 20252811 AMAQI
20th Jul 20253012 PMAQI
20th Jul 2025321 PMAQI
20th Jul 2025312 PMAQI
20th Jul 2025313 PMAQI
20th Jul 2025304 PMAQI
20th Jul 2025285 PMAQI
20th Jul 2025246 PMAQI
20th Jul 2025247 PMAQI
20th Jul 2025288 PMAQI
20th Jul 2025399 PMAQI
20th Jul 20254710 PMAQI
20th Jul 20254711 PMAQI
21st Jul 20254412 AMAQI
21st Jul 2025441 AMAQI
21st Jul 2025442 AMAQI
21st Jul 2025443 AMAQI
21st Jul 2025444 AMAQI
27°C23/31°C
21st Jul 2025425 AMAQI
21st Jul 2025426 AMAQI
21st Jul 2025427 AMAQI
21st Jul 2025428 AMAQI
21st Jul 2025529 AMAQI
21st Jul 20254510 AMAQI
21st Jul 20254311 AMAQI
21st Jul 20254612 PMAQI
21st Jul 2025401 PMAQI
21st Jul 2025372 PMAQI
21st Jul 2025323 PMAQI
21st Jul 2025344 PMAQI
21st Jul 2025325 PMAQI
21st Jul 2025326 PMAQI
21st Jul 2025317 PMAQI
21st Jul 2025328 PMAQI
21st Jul 2025369 PMAQI
21st Jul 20253810 PMAQI
21st Jul 20253811 PMAQI
22nd Jul 20253712 AMAQI
22nd Jul 2025431 AMAQI
22nd Jul 2025442 AMAQI
22nd Jul 2025443 AMAQI
22nd Jul 2025434 AMAQI
28°C25/32°C
22nd Jul 2025445 AMAQI
22nd Jul 2025456 AMAQI
22nd Jul 2025447 AMAQI
22nd Jul 2025448 AMAQI
22nd Jul 2025339 AMAQI
22nd Jul 20253010 AMAQI
22nd Jul 20253211 AMAQI
22nd Jul 20253412 PMAQI
22nd Jul 2025331 PMAQI
22nd Jul 2025342 PMAQI
22nd Jul 2025343 PMAQI
22nd Jul 2025344 PMAQI
22nd Jul 2025345 PMAQI
22nd Jul 2025446 PMAQI
22nd Jul 2025407 PMAQI
22nd Jul 2025418 PMAQI
22nd Jul 2025419 PMAQI
22nd Jul 20253910 PMAQI
22nd Jul 20253911 PMAQI
23rd Jul 20254212 AMAQI
23rd Jul 2025441 AMAQI
23rd Jul 2025422 AMAQI
23rd Jul 2025443 AMAQI
23rd Jul 2025424 AMAQI
28°C24/32°C
23rd Jul 2025415 AMAQI
23rd Jul 2025426 AMAQI
23rd Jul 2025417 AMAQI
23rd Jul 2025428 AMAQI
23rd Jul 2025479 AMAQI
23rd Jul 20254210 AMAQI
23rd Jul 20254711 AMAQI
23rd Jul 20254012 PMAQI
23rd Jul 2025451 PMAQI
23rd Jul 2025542 PMAQI
23rd Jul 2025543 PMAQI
23rd Jul 2025564 PMAQI
23rd Jul 2025535 PMAQI
23rd Jul 2025526 PMAQI
23rd Jul 2025527 PMAQI
23rd Jul 2025528 PMAQI
23rd Jul 2025539 PMAQI
23rd Jul 20255210 PMAQI
23rd Jul 20255111 PMAQI
24th Jul 20255012 AMAQI
24th Jul 2025421 AMAQI
24th Jul 2025432 AMAQI
24th Jul 2025433 AMAQI
24th Jul 2025434 AMAQI
28°C25/32°C
24th Jul 2025435 AMAQI
24th Jul 2025436 AMAQI
24th Jul 2025437 AMAQI
24th Jul 2025428 AMAQI
24th Jul 2025529 AMAQI
24th Jul 20255910 AMAQI
24th Jul 20255911 AMAQI
24th Jul 20255812 PMAQI
24th Jul 2025571 PMAQI
24th Jul 2025582 PMAQI
24th Jul 2025593 PMAQI
24th Jul 2025664 PMAQI
24th Jul 2025625 PMAQI
24th Jul 2025696 PMAQI
24th Jul 2025687 PMAQI
24th Jul 2025668 PMAQI
24th Jul 2025609 PMAQI
24th Jul 20256110 PMAQI
24th Jul 20256211 PMAQI
25th Jul 20256212 AMAQI
25th Jul 2025621 AMAQI
25th Jul 2025502 AMAQI
25th Jul 2025443 AMAQI
25th Jul 2025464 AMAQI
29°C25/33°C
25th Jul 2025495 AMAQI
25th Jul 2025486 AMAQI
25th Jul 2025487 AMAQI
25th Jul 2025488 AMAQI
25th Jul 2025659 AMAQI
25th Jul 20257310 AMAQI
25th Jul 20256811 AMAQI
25th Jul 20256512 PMAQI
25th Jul 2025701 PMAQI
25th Jul 2025702 PMAQI
25th Jul 2025623 PMAQI
25th Jul 2025574 PMAQI
25th Jul 2025605 PMAQI
25th Jul 2025596 PMAQI
25th Jul 2025607 PMAQI
25th Jul 2025618 PMAQI
25th Jul 2025609 PMAQI
25th Jul 20256010 PMAQI
25th Jul 20256211 PMAQI
26th Jul 20256212 AMAQI
26th Jul 2025531 AMAQI
26th Jul 2025522 AMAQI
26th Jul 2025523 AMAQI
26th Jul 2025534 AMAQI
31°C25/36°C
26th Jul 2025565 AMAQI
26th Jul 2025556 AMAQI
26th Jul 2025557 AMAQI
26th Jul 2025558 AMAQI
26th Jul 2025529 AMAQI
26th Jul 20254010 AMAQI
26th Jul 20252911 AMAQI
26th Jul 20253212 PMAQI
26th Jul 2025291 PMAQI
26th Jul 2025342 PMAQI
26th Jul 2025353 PMAQI
26th Jul 2025454 PMAQI
26th Jul 2025345 PMAQI
26th Jul 2025276 PMAQI
26th Jul 2025327 PMAQI
26th Jul 2025438 PMAQI
26th Jul 2025539 PMAQI
26th Jul 20255210 PMAQI
26th Jul 20254911 PMAQI
27th Jul 20255212 AMAQI
27th Jul 2025541 AMAQI
27th Jul 2025542 AMAQI
27th Jul 2025543 AMAQI
27th Jul 2025534 AMAQI
31°C27/36°C
27th Jul 2025525 AMAQI
27th Jul 2025526 AMAQI
27th Jul 2025527 AMAQI
27th Jul 2025528 AMAQI
27th Jul 2025409 AMAQI
27th Jul 20252410 AMAQI
27th Jul 20251911 AMAQI
27th Jul 20252012 PMAQI
27th Jul 2025221 PMAQI
27th Jul 2025222 PMAQI
27th Jul 2025213 PMAQI
27th Jul 2025224 PMAQI
27th Jul 2025225 PMAQI
27th Jul 2025216 PMAQI
27th Jul 2025187 PMAQI
27th Jul 2025248 PMAQI
27th Jul 2025509 PMAQI
27th Jul 20255410 PMAQI
27th Jul 20255711 PMAQI
28th Jul 20256112 AMAQI
28th Jul 2025541 AMAQI
28th Jul 2025532 AMAQI
28th Jul 2025533 AMAQI
28th Jul 2025524 AMAQI
32°C27/37°C
28th Jul 2025505 AMAQI
28th Jul 2025506 AMAQI
28th Jul 2025507 AMAQI
28th Jul 2025508 AMAQI
28th Jul 2025729 AMAQI
28th Jul 20258310 AMAQI
28th Jul 20257811 AMAQI
28th Jul 20257612 PMAQI
28th Jul 2025661 PMAQI
28th Jul 2025682 PMAQI
28th Jul 2025663 PMAQI
28th Jul 2025664 PMAQI
28th Jul 2025625 PMAQI
28th Jul 2025606 PMAQI
28th Jul 2025647 PMAQI
28th Jul 2025668 PMAQI
28th Jul 2025639 PMAQI
28th Jul 20256510 PMAQI
28th Jul 20256711 PMAQI
29th Jul 20256512 AMAQI
29th Jul 2025561 AMAQI
29th Jul 2025532 AMAQI
29th Jul 2025523 AMAQI
29th Jul 2025544 AMAQI
30°C27/35°C
29th Jul 2025575 AMAQI
29th Jul 2025576 AMAQI
29th Jul 2025567 AMAQI
29th Jul 2025568 AMAQI
29th Jul 2025729 AMAQI
29th Jul 20258410 AMAQI
29th Jul 20259011 AMAQI
29th Jul 20258612 PMAQI
29th Jul 2025861 PMAQI
29th Jul 2025862 PMAQI
29th Jul 2025783 PMAQI
29th Jul 2025684 PMAQI
29th Jul 2025635 PMAQI
29th Jul 2025706 PMAQI
29th Jul 2025827 PMAQI
29th Jul 2025778 PMAQI
29th Jul 2025669 PMAQI
29th Jul 20256610 PMAQI
29th Jul 20256511 PMAQI
30th Jul 20256312 AMAQI
30th Jul 2025551 AMAQI
30th Jul 2025562 AMAQI
30th Jul 2025563 AMAQI
30th Jul 2025574 AMAQI
31°C26/37°C
30th Jul 2025625 AMAQI
30th Jul 2025626 AMAQI
30th Jul 2025627 AMAQI
30th Jul 2025618 AMAQI
30th Jul 2025609 AMAQI
30th Jul 20256610 AMAQI
30th Jul 20256111 AMAQI
30th Jul 20256212 PMAQI
30th Jul 2025681 PMAQI
30th Jul 2025622 PMAQI
30th Jul 2025553 PMAQI
30th Jul 2025504 PMAQI
30th Jul 2025475 PMAQI
30th Jul 2025536 PMAQI
30th Jul 2025527 PMAQI
30th Jul 2025548 PMAQI
30th Jul 2025579 PMAQI
30th Jul 20255510 PMAQI
30th Jul 20255411 PMAQI
31st Jul 20255612 AMAQI
31st Jul 2025581 AMAQI
31st Jul 2025582 AMAQI
31st Jul 2025583 AMAQI
31st Jul 2025584 AMAQI
31°C26/35°C
31st Jul 2025585 AMAQI
31st Jul 2025586 AMAQI
31st Jul 2025587 AMAQI
31st Jul 2025588 AMAQI
31st Jul 2025589 AMAQI
31st Jul 20255810 AMAQI
31st Jul 20256011 AMAQI
31st Jul 20255612 PMAQI
31st Jul 2025581 PMAQI
31st Jul 2025622 PMAQI
31st Jul 2025633 PMAQI
31st Jul 2025574 PMAQI
31st Jul 2025525 PMAQI
31st Jul 2025566 PMAQI
31st Jul 2025587 PMAQI
31st Jul 2025578 PMAQI
31st Jul 2025549 PMAQI
31st Jul 20255610 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
30°C27/35°C
1st Aug 2025565 AMAQI
1st Aug 2025566 AMAQI
1st Aug 2025567 AMAQI
1st Aug 2025558 AMAQI
1st Aug 2025529 AMAQI
1st Aug 20255910 AMAQI
1st Aug 20255711 AMAQI
1st Aug 20255612 PMAQI
1st Aug 2025581 PMAQI
1st Aug 2025612 PMAQI
1st Aug 2025603 PMAQI
1st Aug 2025614 PMAQI
1st Aug 2025665 PMAQI
1st Aug 2025616 PMAQI
1st Aug 2025597 PMAQI
1st Aug 2025568 PMAQI
1st Aug 2025639 PMAQI
1st Aug 20256210 PMAQI
1st Aug 20256411 PMAQI
2nd Aug 20256012 AMAQI
2nd Aug 2025551 AMAQI
2nd Aug 2025542 AMAQI
2nd Aug 2025553 AMAQI
2nd Aug 2025564 AMAQI
30°C27/36°C
2nd Aug 2025555 AMAQI
2nd Aug 2025556 AMAQI
2nd Aug 2025567 AMAQI
2nd Aug 2025568 AMAQI
2nd Aug 2025799 AMAQI
2nd Aug 20257810 AMAQI
2nd Aug 20257311 AMAQI
2nd Aug 20258012 PMAQI
2nd Aug 2025801 PMAQI
2nd Aug 2025542 PMAQI
2nd Aug 2025573 PMAQI
2nd Aug 2025634 PMAQI
2nd Aug 2025635 PMAQI
2nd Aug 2025716 PMAQI
2nd Aug 2025647 PMAQI
2nd Aug 2025588 PMAQI
2nd Aug 2025599 PMAQI
2nd Aug 20256010 PMAQI
2nd Aug 20255911 PMAQI
3rd Aug 20255612 AMAQI
3rd Aug 2025561 AMAQI
3rd Aug 2025552 AMAQI
3rd Aug 2025553 AMAQI
3rd Aug 2025584 AMAQI
30°C26/34°C
3rd Aug 2025585 AMAQI
3rd Aug 2025586 AMAQI
3rd Aug 2025597 AMAQI
3rd Aug 2025598 AMAQI
3rd Aug 2025649 AMAQI
3rd Aug 20256210 AMAQI
3rd Aug 20256411 AMAQI
3rd Aug 20256612 PMAQI
3rd Aug 2025661 PMAQI
3rd Aug 2025702 PMAQI
3rd Aug 2025723 PMAQI
3rd Aug 2025674 PMAQI
3rd Aug 2025635 PMAQI
3rd Aug 2025676 PMAQI
3rd Aug 2025657 PMAQI
3rd Aug 2025608 PMAQI
3rd Aug 2025589 PMAQI
3rd Aug 20255810 PMAQI
3rd Aug 20255211 PMAQI
4th Aug 20255412 AMAQI
4th Aug 2025561 AMAQI
4th Aug 2025572 AMAQI
4th Aug 2025573 AMAQI
4th Aug 2025584 AMAQI
27°C25/31°C
4th Aug 2025585 AMAQI
5 AM4th Aug 2025586 AMAQI
4th Aug 2025587 AMAQI
4th Aug 2025598 AMAQI
4th Aug 2025369 AMAQI
12 PM
7 PM
12 AM
4 AM
--°C/°C
Day time
Avg. Highest Time
5 AM - 7 PM
51AQI
15 hours / Day
450 hours / Month
Avg. Lowest Time
5 AM - 7 PM
51AQI
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. 51), while the lowest AQI was between 5 AM to 7 PM (Avg. 51).
Night time
Avg. Highest Time
12 AM - 4 AM
53AQI
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. 53), while the lowest AQI was between 8 PM to 8 PM (Avg. 49).
2025 Days Vs Air Quality
Cheonggye Dong, Osan, Gyeonggi, South Korea
2025
22%
48
71%
152
7%
14
Total number of days with different AQI categories in last 216 days in 2025 (149 days remaining)
Good
48 DaysModerate
152 DaysPoor
14 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 22%
Health Risk Level:
Very high
In 2025, 22% of 216 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
Cheonggye Dong, Osan, Gyeonggi, 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
74AQI
74AQI
2nd January 2025
62AQI
62AQI
3rd January 2025
62AQI
62AQI
4th January 2025
63AQI
63AQI
5th January 2025
70AQI
70AQI
6th January 2025
100AQI
100AQI
7th January 2025
57AQI
57AQI
8th January 2025
70AQI
70AQI
9th January 2025
41AQI
41AQI
10th January 2025
56AQI
56AQI
11th January 2025
54AQI
54AQI
12th January 2025
77AQI
77AQI
13th January 2025
83AQI
83AQI
14th January 2025
98AQI
98AQI
15th January 2025
53AQI
53AQI
16th January 2025
73AQI
73AQI
17th January 2025
83AQI
83AQI
18th January 2025
76AQI
76AQI
19th January 2025
82AQI
82AQI
20th January 2025
126AQI
126AQI
21st January 2025
142AQI
142AQI
22nd January 2025
144AQI
144AQI
23rd January 2025
130AQI
130AQI
24th January 2025
99AQI
99AQI
25th January 2025
69AQI
69AQI
26th January 2025
53AQI
53AQI
27th January 2025
65AQI
65AQI
28th January 2025
54AQI
54AQI
29th January 2025
58AQI
58AQI
30th January 2025
50AQI
50AQI
31st January 2025
71AQI
71AQI
1st February 2025
69AQI
69AQI
2nd February 2025
78AQI
78AQI
3rd February 2025
52AQI
52AQI
4th February 2025
49AQI
49AQI
5th February 2025
41AQI
41AQI
6th February 2025
54AQI
54AQI
7th February 2025
46AQI
46AQI
8th February 2025
43AQI
43AQI
9th February 2025
46AQI
46AQI
10th February 2025
55AQI
55AQI
11th February 2025
66AQI
66AQI
12th February 2025
74AQI
74AQI
13th February 2025
48AQI
48AQI
14th February 2025
88AQI
88AQI
15th February 2025
56AQI
56AQI
16th February 2025
108AQI
108AQI
17th February 2025
49AQI
49AQI
18th February 2025
61AQI
61AQI
19th February 2025
45AQI
45AQI
20th February 2025
57AQI
57AQI
21st February 2025
53AQI
53AQI
22nd February 2025
55AQI
55AQI
23rd February 2025
53AQI
53AQI
24th February 2025
58AQI
58AQI
25th February 2025
53AQI
53AQI
26th February 2025
71AQI
71AQI
27th February 2025
53AQI
53AQI
28th February 2025
77AQI
77AQI
1st March 2025
92AQI
92AQI
2nd March 2025
71AQI
71AQI
3rd March 2025
56AQI
56AQI
4th March 2025
47AQI
47AQI
5th March 2025
37AQI
37AQI
6th March 2025
72AQI
72AQI
7th March 2025
91AQI
91AQI
8th March 2025
86AQI
86AQI
9th March 2025
104AQI
104AQI
10th March 2025
110AQI
110AQI
11th March 2025
106AQI
106AQI
12th March 2025
104AQI
104AQI
13th March 2025
94AQI
94AQI
14th March 2025
79AQI
79AQI
15th March 2025
53AQI
53AQI
16th March 2025
75AQI
75AQI
17th March 2025
62AQI
62AQI
18th March 2025
68AQI
68AQI
19th March 2025
80AQI
80AQI
20th March 2025
86AQI
86AQI
21st March 2025
102AQI
102AQI
22nd March 2025
102AQI
102AQI
23rd March 2025
109AQI
109AQI
24th March 2025
113AQI
113AQI
25th March 2025
132AQI
132AQI
26th March 2025
91AQI
91AQI
27th March 2025
94AQI
94AQI
28th March 2025
62AQI
62AQI
29th March 2025
50AQI
50AQI
30th March 2025
45AQI
45AQI
31st March 2025
60AQI
60AQI
1st April 2025
76AQI
76AQI
2nd April 2025
82AQI
82AQI
3rd April 2025
80AQI
80AQI
4th April 2025
83AQI
83AQI
5th April 2025
73AQI
73AQI
6th April 2025
70AQI
70AQI
7th April 2025
70AQI
70AQI
8th April 2025
77AQI
77AQI
9th April 2025
68AQI
68AQI
10th April 2025
76AQI
76AQI
11th April 2025
84AQI
84AQI
12th April 2025
62AQI
62AQI
13th April 2025
63AQI
63AQI
14th April 2025
44AQI
44AQI
15th April 2025
57AQI
57AQI
16th April 2025
60AQI
60AQI
17th April 2025
66AQI
66AQI
18th April 2025
84AQI
84AQI
19th April 2025
54AQI
54AQI
20th April 2025
63AQI
63AQI
21st April 2025
52AQI
52AQI
22nd April 2025
47AQI
47AQI
23rd April 2025
34AQI
34AQI
24th April 2025
63AQI
63AQI
25th April 2025
60AQI
60AQI
26th April 2025
52AQI
52AQI
27th April 2025
40AQI
40AQI
28th April 2025
59AQI
59AQI
29th April 2025
66AQI
66AQI
30th April 2025
56AQI
56AQI
1st May 2025
59AQI
59AQI
2nd May 2025
50AQI
50AQI
3rd May 2025
48AQI
48AQI
4th May 2025
48AQI
48AQI
5th May 2025
53AQI
53AQI
6th May 2025
40AQI
40AQI
7th May 2025
55AQI
55AQI
8th May 2025
64AQI
64AQI
9th May 2025
50AQI
50AQI
10th May 2025
59AQI
59AQI
11th May 2025
70AQI
70AQI
12th May 2025
69AQI
69AQI
13th May 2025
71AQI
71AQI
14th May 2025
73AQI
73AQI
15th May 2025
63AQI
63AQI
16th May 2025
52AQI
52AQI
17th May 2025
46AQI
46AQI
18th May 2025
58AQI
58AQI
19th May 2025
60AQI
60AQI
20th May 2025
41AQI
41AQI
21st May 2025
51AQI
51AQI
22nd May 2025
46AQI
46AQI
23rd May 2025
63AQI
63AQI
24th May 2025
44AQI
44AQI
25th May 2025
51AQI
51AQI
26th May 2025
61AQI
61AQI
27th May 2025
80AQI
80AQI
28th May 2025
83AQI
83AQI
29th May 2025
80AQI
80AQI
30th May 2025
69AQI
69AQI
31st May 2025
79AQI
79AQI
1st June 2025
83AQI
83AQI
2nd June 2025
99AQI
99AQI
3rd June 2025
80AQI
80AQI
4th June 2025
59AQI
59AQI
5th June 2025
58AQI
58AQI
6th June 2025
58AQI
58AQI
7th June 2025
69AQI
69AQI
8th June 2025
59AQI
59AQI
9th June 2025
66AQI
66AQI
10th June 2025
56AQI
56AQI
11th June 2025
49AQI
49AQI
12th June 2025
60AQI
60AQI
13th June 2025
75AQI
75AQI
14th June 2025
53AQI
53AQI
15th June 2025
54AQI
54AQI
16th June 2025
65AQI
65AQI
17th June 2025
62AQI
62AQI
18th June 2025
68AQI
68AQI
19th June 2025
63AQI
63AQI
20th June 2025
44AQI
44AQI
21st June 2025
59AQI
59AQI
22nd June 2025
70AQI
70AQI
23rd June 2025
69AQI
69AQI
24th June 2025
61AQI
61AQI
25th June 2025
46AQI
46AQI
26th June 2025
58AQI
58AQI
27th June 2025
66AQI
66AQI
28th June 2025
63AQI
63AQI
29th June 2025
46AQI
46AQI
30th June 2025
42AQI
42AQI
1st July 2025
46AQI
46AQI
2nd July 2025
43AQI
43AQI
3rd July 2025
53AQI
53AQI
4th July 2025
51AQI
51AQI
5th July 2025
49AQI
49AQI
6th July 2025
53AQI
53AQI
7th July 2025
67AQI
67AQI
8th July 2025
67AQI
67AQI
9th July 2025
56AQI
56AQI
10th July 2025
49AQI
49AQI
11th July 2025
48AQI
48AQI
12th July 2025
46AQI
46AQI
13th July 2025
62AQI
62AQI
14th July 2025
55AQI
55AQI
15th July 2025
44AQI
44AQI
16th July 2025
52AQI
52AQI
17th July 2025
37AQI
37AQI
18th July 2025
41AQI
41AQI
19th July 2025
32AQI
32AQI
20th July 2025
37AQI
37AQI
21st July 2025
39AQI
39AQI
22nd July 2025
39AQI
39AQI
23rd July 2025
47AQI
47AQI
24th July 2025
55AQI
55AQI
25th July 2025
58AQI
58AQI
26th July 2025
45AQI
45AQI
27th July 2025
39AQI
39AQI
28th July 2025
62AQI
62AQI
29th July 2025
68AQI
68AQI
30th July 2025
58AQI
58AQI
31st July 2025
57AQI
57AQI
1st August 2025
58AQI
58AQI
2nd August 2025
62AQI
62AQI
77AQI
59AQI
82AQI
64AQI
59AQI
62AQI
50AQI
60AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202565AQI
2
25
4
8
19
1
4
18
9
4
26
9
22
5
25
16
15
2
48
152
14
Highest AQI recorded in
March82AQI
Lowest AQI recorded in
July50AQI
202462AQI
11
13
7
9
14
5
1
6
22
2
1
2
20
4
8
21
2
3
26
1
18
12
1
10
21
21
8
1
14
17
10
19
1
5
25
1
117
218
25
2
Highest AQI recorded in
April76AQI
Lowest AQI recorded in
September46AQI
202367AQI
12
11
5
3
2
18
7
1
3
16
12
3
21
5
1
6
23
2
2
28
7
22
2
14
17
18
12
15
14
2
13
14
2
11
14
6
106
210
43
5
Highest AQI recorded in
March91AQI
Lowest AQI recorded in
September46AQI
202269AQI
1
22
6
2
6
8
5
2
5
18
8
5
20
4
1
7
22
2
14
16
4
17
1
1
21
5
2
17
10
4
6
14
8
2
7
20
4
94
172
44
7
Highest AQI recorded in
January85AQI
Lowest AQI recorded in
August22AQI
202164AQI
10
19
1
10
11
6
1
3
17
9
1
1
11
17
2
9
17
3
1
1
4
24
2
17
14
18
13
26
4
13
17
1
10
16
2
2
8
15
8
139
184
34
4
2
1
Highest AQI recorded in
March92AQI
Lowest AQI recorded in
September35AQI
202063AQI
3
9
1
3
17
1
3
11
4
3
21
6
16
14
1
17
14
20
8
18
11
1
1
11
11
8
14
9
7
1
108
125
29
2
Highest AQI recorded in
June85AQI
Lowest AQI recorded in
September42AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2022(Avg.)
69AQILeast Polluted Year Recorded
2024(Avg.)
62AQICheonggye Dong's annual 2025 AQI (65) shows an average percentage change of -0.6% (improved AQI) compared to previous years: 2020 (63), 2021 (64), 2022 (69), 2023 (67), 2024 (62).
