Oeyeondo, Boryeong, 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
Oeyeondo, Boryeong, Chungnam, South Korea
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
13th Aug 2021
95AQILowest AQI recorded on
30th Aug 2023
20AQISame Day Analysis (1st August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 55 of Moderate air quality, showing improvement over 2023 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 2nd Aug - 3rd Aug 2025
Oeyeondo, Boryeong, Chungnam, South Korea
AQI
Day
Night
.
5 AM2nd Aug 2025
7 PM
4 AM3rd Aug 2025
Day time
Avg. Highest Time
12AMNaNth undefined
AQI
Avg. Lowest Time
12AMNaNth undefined
AQI
Night time
Avg. Highest Time
9AM2nd Aug
77AQI
Avg. Lowest Time
3AM3rd Aug
54AQI
In the last 24 hours,
Oeyeondo's AQI reached its highest point of 77 at 9 AM during the Night, while the lowest point, undefined, was recorded at 4 AM during the Night between 2nd Aug and 3rd Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Oeyeondo, Boryeong, Chungnam, South Korea
JulAug
04th - 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 - 31st31st - 01st01st - 02nd02nd - 03rd03rd
Day
Night
4th Jul 2025525 AMAQI
4th Jul 2025526 AMAQI
4th Jul 2025527 AMAQI
4th Jul 2025538 AMAQI
4th Jul 2025579 AMAQI
4th Jul 20255610 AMAQI
4th Jul 20255211 AMAQI
4th Jul 20255212 PMAQI
4th Jul 2025501 PMAQI
4th Jul 2025482 PMAQI
4th Jul 2025483 PMAQI
4th Jul 2025454 PMAQI
4th Jul 2025425 PMAQI
4th Jul 2025446 PMAQI
4th Jul 2025457 PMAQI
4th Jul 2025448 PMAQI
4th Jul 2025529 PMAQI
4th Jul 20255210 PMAQI
4th Jul 20255311 PMAQI
5th Jul 20255312 AMAQI
5th Jul 2025531 AMAQI
5th Jul 2025532 AMAQI
5th Jul 2025533 AMAQI
5th Jul 2025534 AMAQI
24°C22/27°C
5th Jul 2025535 AMAQI
5th Jul 2025526 AMAQI
5th Jul 2025527 AMAQI
5th Jul 2025528 AMAQI
5th Jul 2025339 AMAQI
5th Jul 20252810 AMAQI
5th Jul 20253811 AMAQI
5th Jul 20253812 PMAQI
5th Jul 2025441 PMAQI
5th Jul 2025422 PMAQI
5th Jul 2025413 PMAQI
5th Jul 2025404 PMAQI
5th Jul 2025405 PMAQI
5th Jul 2025406 PMAQI
5th Jul 2025407 PMAQI
5th Jul 2025438 PMAQI
5th Jul 2025529 PMAQI
5th Jul 20255210 PMAQI
5th Jul 20255211 PMAQI
6th Jul 20255212 AMAQI
6th Jul 2025521 AMAQI
6th Jul 2025522 AMAQI
6th Jul 2025533 AMAQI
6th Jul 2025524 AMAQI
24°C22/27°C
6th Jul 2025525 AMAQI
6th Jul 2025526 AMAQI
6th Jul 2025527 AMAQI
6th Jul 2025528 AMAQI
6th Jul 2025459 AMAQI
6th Jul 20253610 AMAQI
6th Jul 20253711 AMAQI
6th Jul 20254012 PMAQI
6th Jul 2025471 PMAQI
6th Jul 2025442 PMAQI
6th Jul 2025403 PMAQI
6th Jul 2025414 PMAQI
6th Jul 2025435 PMAQI
6th Jul 2025446 PMAQI
6th Jul 2025427 PMAQI
6th Jul 2025468 PMAQI
6th Jul 2025529 PMAQI
6th Jul 20255210 PMAQI
6th Jul 20255211 PMAQI
7th Jul 20255212 AMAQI
7th Jul 2025521 AMAQI
7th Jul 2025532 AMAQI
7th Jul 2025523 AMAQI
7th Jul 2025524 AMAQI
25°C23/28°C
7th Jul 2025525 AMAQI
7th Jul 2025526 AMAQI
7th Jul 2025527 AMAQI
7th Jul 2025528 AMAQI
7th Jul 2025409 AMAQI
7th Jul 20253510 AMAQI
7th Jul 20253411 AMAQI
7th Jul 20254512 PMAQI
7th Jul 2025511 PMAQI
7th Jul 2025562 PMAQI
7th Jul 2025623 PMAQI
7th Jul 2025564 PMAQI
7th Jul 2025525 PMAQI
7th Jul 2025496 PMAQI
7th Jul 2025497 PMAQI
7th Jul 2025498 PMAQI
7th Jul 2025549 PMAQI
7th Jul 20255410 PMAQI
7th Jul 20255311 PMAQI
8th Jul 20255412 AMAQI
8th Jul 2025541 AMAQI
8th Jul 2025532 AMAQI
8th Jul 2025533 AMAQI
8th Jul 2025524 AMAQI
26°C23/29°C
8th Jul 2025525 AMAQI
8th Jul 2025526 AMAQI
8th Jul 2025537 AMAQI
8th Jul 2025538 AMAQI
8th Jul 2025559 AMAQI
8th Jul 20255710 AMAQI
8th Jul 20256011 AMAQI
8th Jul 20256312 PMAQI
8th Jul 2025641 PMAQI
8th Jul 2025642 PMAQI
8th Jul 2025633 PMAQI
8th Jul 2025644 PMAQI
8th Jul 2025635 PMAQI
8th Jul 2025626 PMAQI
8th Jul 2025627 PMAQI
8th Jul 2025608 PMAQI
8th Jul 2025579 PMAQI
8th Jul 20255710 PMAQI
8th Jul 20255611 PMAQI
9th Jul 20255612 AMAQI
9th Jul 2025561 AMAQI
9th Jul 2025542 AMAQI
9th Jul 2025543 AMAQI
9th Jul 2025544 AMAQI
27°C24/31°C
9th Jul 2025565 AMAQI
9th Jul 2025556 AMAQI
9th Jul 2025557 AMAQI
9th Jul 2025568 AMAQI
9th Jul 2025609 AMAQI
9th Jul 20256010 AMAQI
9th Jul 20255811 AMAQI
9th Jul 20255612 PMAQI
9th Jul 2025591 PMAQI
9th Jul 2025602 PMAQI
9th Jul 2025613 PMAQI
9th Jul 2025594 PMAQI
9th Jul 2025595 PMAQI
9th Jul 2025606 PMAQI
9th Jul 2025607 PMAQI
9th Jul 2025638 PMAQI
9th Jul 2025589 PMAQI
9th Jul 20255810 PMAQI
9th Jul 20255811 PMAQI
10th Jul 20255812 AMAQI
10th Jul 2025581 AMAQI
10th Jul 2025562 AMAQI
10th Jul 2025563 AMAQI
10th Jul 2025564 AMAQI
28°C25/32°C
10th Jul 2025565 AMAQI
10th Jul 2025566 AMAQI
10th Jul 2025567 AMAQI
10th Jul 2025568 AMAQI
10th Jul 2025489 AMAQI
10th Jul 20254310 AMAQI
10th Jul 20254511 AMAQI
10th Jul 20254812 PMAQI
10th Jul 2025521 PMAQI
10th Jul 2025512 PMAQI
10th Jul 2025533 PMAQI
10th Jul 2025524 PMAQI
10th Jul 2025525 PMAQI
10th Jul 2025516 PMAQI
10th Jul 2025537 PMAQI
10th Jul 2025598 PMAQI
10th Jul 2025629 PMAQI
10th Jul 20256210 PMAQI
10th Jul 20256011 PMAQI
11th Jul 20255812 AMAQI
11th Jul 2025601 AMAQI
11th Jul 2025582 AMAQI
11th Jul 2025583 AMAQI
11th Jul 2025594 AMAQI
27°C24/32°C
11th Jul 2025605 AMAQI
11th Jul 2025596 AMAQI
11th Jul 2025587 AMAQI
11th Jul 2025578 AMAQI
11th Jul 2025439 AMAQI
11th Jul 20254410 AMAQI
11th Jul 20254711 AMAQI
11th Jul 20255212 PMAQI
11th Jul 2025541 PMAQI
11th Jul 2025572 PMAQI
11th Jul 2025553 PMAQI
11th Jul 2025564 PMAQI
11th Jul 2025575 PMAQI
11th Jul 2025546 PMAQI
11th Jul 2025557 PMAQI
11th Jul 2025568 PMAQI
11th Jul 2025589 PMAQI
11th Jul 20255910 PMAQI
11th Jul 20256011 PMAQI
12th Jul 20255912 AMAQI
12th Jul 2025591 AMAQI
12th Jul 2025582 AMAQI
12th Jul 2025583 AMAQI
12th Jul 2025584 AMAQI
27°C24/32°C
12th Jul 2025595 AMAQI
12th Jul 2025596 AMAQI
12th Jul 2025587 AMAQI
12th Jul 2025608 AMAQI
12th Jul 2025409 AMAQI
12th Jul 20253610 AMAQI
12th Jul 20253711 AMAQI
12th Jul 20254112 PMAQI
12th Jul 2025511 PMAQI
12th Jul 2025522 PMAQI
12th Jul 2025523 PMAQI
12th Jul 2025544 PMAQI
12th Jul 2025565 PMAQI
12th Jul 2025536 PMAQI
12th Jul 2025527 PMAQI
12th Jul 2025568 PMAQI
12th Jul 2025609 PMAQI
12th Jul 20255910 PMAQI
12th Jul 20255911 PMAQI
13th Jul 20255912 AMAQI
13th Jul 2025591 AMAQI
13th Jul 2025592 AMAQI
13th Jul 2025593 AMAQI
13th Jul 2025594 AMAQI
26°C22/30°C
13th Jul 2025595 AMAQI
13th Jul 2025596 AMAQI
13th Jul 2025587 AMAQI
13th Jul 2025598 AMAQI
13th Jul 2025539 AMAQI
13th Jul 20255010 AMAQI
13th Jul 20255011 AMAQI
13th Jul 20255312 PMAQI
13th Jul 2025571 PMAQI
13th Jul 2025562 PMAQI
13th Jul 2025563 PMAQI
13th Jul 2025584 PMAQI
13th Jul 2025575 PMAQI
13th Jul 2025586 PMAQI
13th Jul 2025607 PMAQI
13th Jul 2025588 PMAQI
13th Jul 2025609 PMAQI
13th Jul 20256010 PMAQI
13th Jul 20256011 PMAQI
14th Jul 20256012 AMAQI
14th Jul 2025591 AMAQI
14th Jul 2025592 AMAQI
14th Jul 2025593 AMAQI
14th Jul 2025594 AMAQI
24°C21/26°C
14th Jul 2025605 AMAQI
14th Jul 2025596 AMAQI
14th Jul 2025597 AMAQI
14th Jul 2025598 AMAQI
14th Jul 2025529 AMAQI
14th Jul 20255310 AMAQI
14th Jul 20254411 AMAQI
14th Jul 20255012 PMAQI
14th Jul 2025541 PMAQI
14th Jul 2025542 PMAQI
14th Jul 2025553 PMAQI
14th Jul 2025544 PMAQI
14th Jul 2025545 PMAQI
14th Jul 2025536 PMAQI
14th Jul 2025527 PMAQI
14th Jul 2025538 PMAQI
14th Jul 2025589 PMAQI
14th Jul 20255710 PMAQI
14th Jul 20255711 PMAQI
15th Jul 20255812 AMAQI
15th Jul 2025581 AMAQI
15th Jul 2025602 AMAQI
15th Jul 2025603 AMAQI
15th Jul 2025594 AMAQI
24°C21/26°C
15th Jul 2025585 AMAQI
15th Jul 2025596 AMAQI
15th Jul 2025597 AMAQI
15th Jul 2025598 AMAQI
15th Jul 2025309 AMAQI
15th Jul 20252010 AMAQI
15th Jul 20252011 AMAQI
15th Jul 20252312 PMAQI
15th Jul 2025371 PMAQI
15th Jul 2025362 PMAQI
15th Jul 2025383 PMAQI
15th Jul 2025384 PMAQI
15th Jul 2025385 PMAQI
15th Jul 2025386 PMAQI
15th Jul 2025397 PMAQI
15th Jul 2025468 PMAQI
15th Jul 2025579 PMAQI
15th Jul 20255710 PMAQI
15th Jul 20255811 PMAQI
16th Jul 20255812 AMAQI
16th Jul 2025581 AMAQI
16th Jul 2025582 AMAQI
16th Jul 2025583 AMAQI
16th Jul 2025584 AMAQI
22°C20/25°C
16th Jul 2025585 AMAQI
16th Jul 2025586 AMAQI
16th Jul 2025587 AMAQI
16th Jul 2025588 AMAQI
16th Jul 2025549 AMAQI
16th Jul 20255310 AMAQI
16th Jul 20255411 AMAQI
16th Jul 20255612 PMAQI
16th Jul 2025591 PMAQI
16th Jul 2025552 PMAQI
16th Jul 2025543 PMAQI
16th Jul 2025534 PMAQI
16th Jul 2025545 PMAQI
16th Jul 2025546 PMAQI
16th Jul 2025547 PMAQI
16th Jul 2025558 PMAQI
16th Jul 2025569 PMAQI
16th Jul 20255810 PMAQI
16th Jul 20255811 PMAQI
17th Jul 20255812 AMAQI
17th Jul 2025581 AMAQI
17th Jul 2025582 AMAQI
17th Jul 2025583 AMAQI
17th Jul 2025584 AMAQI
22°C21/24°C
17th Jul 2025575 AMAQI
17th Jul 2025586 AMAQI
17th Jul 2025587 AMAQI
17th Jul 2025588 AMAQI
17th Jul 2025529 AMAQI
17th Jul 20253910 AMAQI
17th Jul 20254111 AMAQI
17th Jul 20255512 PMAQI
17th Jul 2025561 PMAQI
17th Jul 2025542 PMAQI
17th Jul 2025543 PMAQI
17th Jul 2025544 PMAQI
17th Jul 2025545 PMAQI
17th Jul 2025516 PMAQI
17th Jul 2025467 PMAQI
17th Jul 2025518 PMAQI
17th Jul 2025569 PMAQI
17th Jul 20255710 PMAQI
17th Jul 20255611 PMAQI
18th Jul 20255612 AMAQI
18th Jul 2025581 AMAQI
18th Jul 2025582 AMAQI
18th Jul 2025583 AMAQI
18th Jul 2025584 AMAQI
24°C22/25°C
18th Jul 2025585 AMAQI
18th Jul 2025586 AMAQI
18th Jul 2025587 AMAQI
18th Jul 2025588 AMAQI
18th Jul 2025379 AMAQI
18th Jul 20252610 AMAQI
18th Jul 20252611 AMAQI
18th Jul 20253412 PMAQI
18th Jul 2025431 PMAQI
18th Jul 2025422 PMAQI
18th Jul 2025473 PMAQI
18th Jul 2025434 PMAQI
18th Jul 2025435 PMAQI
18th Jul 2025466 PMAQI
18th Jul 2025457 PMAQI
18th Jul 2025488 PMAQI
18th Jul 2025559 PMAQI
18th Jul 20255610 PMAQI
18th Jul 20255511 PMAQI
19th Jul 20255612 AMAQI
19th Jul 2025581 AMAQI
19th Jul 2025582 AMAQI
19th Jul 2025583 AMAQI
19th Jul 2025574 AMAQI
24°C23/25°C
19th Jul 2025585 AMAQI
19th Jul 2025586 AMAQI
19th Jul 2025577 AMAQI
19th Jul 2025568 AMAQI
19th Jul 2025269 AMAQI
19th Jul 20251810 AMAQI
19th Jul 20251711 AMAQI
19th Jul 20252512 PMAQI
19th Jul 2025361 PMAQI
19th Jul 2025382 PMAQI
19th Jul 2025383 PMAQI
19th Jul 2025404 PMAQI
19th Jul 2025385 PMAQI
19th Jul 2025396 PMAQI
19th Jul 2025417 PMAQI
19th Jul 2025448 PMAQI
19th Jul 2025559 PMAQI
19th Jul 20255610 PMAQI
19th Jul 20255511 PMAQI
20th Jul 20255612 AMAQI
20th Jul 2025561 AMAQI
20th Jul 2025562 AMAQI
20th Jul 2025563 AMAQI
20th Jul 2025564 AMAQI
25°C23/27°C
20th Jul 2025565 AMAQI
20th Jul 2025556 AMAQI
20th Jul 2025557 AMAQI
20th Jul 2025568 AMAQI
20th Jul 2025419 AMAQI
20th Jul 20253010 AMAQI
20th Jul 20253111 AMAQI
20th Jul 20253012 PMAQI
20th Jul 2025311 PMAQI
20th Jul 2025312 PMAQI
20th Jul 2025323 PMAQI
20th Jul 2025324 PMAQI
20th Jul 2025385 PMAQI
20th Jul 2025446 PMAQI
20th Jul 2025487 PMAQI
20th Jul 2025518 PMAQI
20th Jul 2025549 PMAQI
20th Jul 20255510 PMAQI
20th Jul 20255511 PMAQI
21st Jul 20255212 AMAQI
21st Jul 2025561 AMAQI
21st Jul 2025562 AMAQI
21st Jul 2025553 AMAQI
21st Jul 2025544 AMAQI
26°C23/29°C
21st Jul 2025525 AMAQI
21st Jul 2025536 AMAQI
21st Jul 2025537 AMAQI
21st Jul 2025538 AMAQI
21st Jul 2025359 AMAQI
21st Jul 20253210 AMAQI
21st Jul 20253711 AMAQI
21st Jul 20254012 PMAQI
21st Jul 2025351 PMAQI
21st Jul 2025292 PMAQI
21st Jul 2025303 PMAQI
21st Jul 2025324 PMAQI
21st Jul 2025295 PMAQI
21st Jul 2025266 PMAQI
21st Jul 2025267 PMAQI
21st Jul 2025328 PMAQI
21st Jul 2025459 PMAQI
21st Jul 20255010 PMAQI
21st Jul 20255211 PMAQI
22nd Jul 20255112 AMAQI
22nd Jul 2025501 AMAQI
22nd Jul 2025532 AMAQI
22nd Jul 2025533 AMAQI
22nd Jul 2025534 AMAQI
26°C24/29°C
22nd Jul 2025525 AMAQI
22nd Jul 2025526 AMAQI
22nd Jul 2025527 AMAQI
22nd Jul 2025528 AMAQI
22nd Jul 2025319 AMAQI
22nd Jul 20252610 AMAQI
22nd Jul 20252511 AMAQI
22nd Jul 20252412 PMAQI
22nd Jul 2025291 PMAQI
22nd Jul 2025332 PMAQI
22nd Jul 2025253 PMAQI
22nd Jul 2025284 PMAQI
22nd Jul 2025265 PMAQI
22nd Jul 2025266 PMAQI
22nd Jul 2025257 PMAQI
22nd Jul 2025318 PMAQI
22nd Jul 2025469 PMAQI
22nd Jul 20254310 PMAQI
22nd Jul 20254311 PMAQI
23rd Jul 20254112 AMAQI
23rd Jul 2025401 AMAQI
23rd Jul 2025442 AMAQI
23rd Jul 2025523 AMAQI
23rd Jul 2025524 AMAQI
26°C24/29°C
23rd Jul 2025495 AMAQI
23rd Jul 2025496 AMAQI
23rd Jul 2025497 AMAQI
23rd Jul 2025488 AMAQI
23rd Jul 2025289 AMAQI
23rd Jul 20252410 AMAQI
23rd Jul 20252811 AMAQI
23rd Jul 20253512 PMAQI
23rd Jul 2025341 PMAQI
23rd Jul 2025342 PMAQI
23rd Jul 2025333 PMAQI
23rd Jul 2025334 PMAQI
23rd Jul 2025315 PMAQI
23rd Jul 2025316 PMAQI
23rd Jul 2025337 PMAQI
23rd Jul 2025338 PMAQI
23rd Jul 2025399 PMAQI
23rd Jul 20254010 PMAQI
23rd Jul 20254211 PMAQI
24th Jul 20254012 AMAQI
24th Jul 2025481 AMAQI
24th Jul 2025482 AMAQI
24th Jul 2025483 AMAQI
24th Jul 2025484 AMAQI
26°C24/29°C
24th Jul 2025465 AMAQI
24th Jul 2025446 AMAQI
24th Jul 2025457 AMAQI
24th Jul 2025448 AMAQI
24th Jul 2025389 AMAQI
24th Jul 20253510 AMAQI
24th Jul 20253911 AMAQI
24th Jul 20254112 PMAQI
24th Jul 2025491 PMAQI
24th Jul 2025492 PMAQI
24th Jul 2025423 PMAQI
24th Jul 2025404 PMAQI
24th Jul 2025435 PMAQI
24th Jul 2025456 PMAQI
24th Jul 2025407 PMAQI
24th Jul 2025498 PMAQI
24th Jul 2025489 PMAQI
24th Jul 20254710 PMAQI
24th Jul 20255011 PMAQI
25th Jul 20255012 AMAQI
25th Jul 2025481 AMAQI
25th Jul 2025492 AMAQI
25th Jul 2025483 AMAQI
25th Jul 2025484 AMAQI
27°C24/30°C
25th Jul 2025475 AMAQI
25th Jul 2025476 AMAQI
25th Jul 2025467 AMAQI
25th Jul 2025478 AMAQI
25th Jul 2025549 AMAQI
25th Jul 20256510 AMAQI
25th Jul 20257911 AMAQI
25th Jul 20257912 PMAQI
25th Jul 2025751 PMAQI
25th Jul 2025742 PMAQI
25th Jul 2025753 PMAQI
25th Jul 2025764 PMAQI
25th Jul 2025775 PMAQI
25th Jul 2025806 PMAQI
25th Jul 2025797 PMAQI
25th Jul 2025808 PMAQI
25th Jul 2025669 PMAQI
25th Jul 20256510 PMAQI
25th Jul 20256411 PMAQI
26th Jul 20256012 AMAQI
26th Jul 2025501 AMAQI
26th Jul 2025502 AMAQI
26th Jul 2025503 AMAQI
26th Jul 2025524 AMAQI
27°C24/31°C
26th Jul 2025545 AMAQI
26th Jul 2025546 AMAQI
26th Jul 2025547 AMAQI
26th Jul 2025548 AMAQI
26th Jul 2025679 AMAQI
26th Jul 20256310 AMAQI
26th Jul 20255711 AMAQI
26th Jul 20255712 PMAQI
26th Jul 2025621 PMAQI
26th Jul 2025752 PMAQI
26th Jul 2025703 PMAQI
26th Jul 2025664 PMAQI
26th Jul 2025635 PMAQI
26th Jul 2025706 PMAQI
26th Jul 2025927 PMAQI
26th Jul 2025778 PMAQI
26th Jul 2025689 PMAQI
26th Jul 20256810 PMAQI
26th Jul 20256911 PMAQI
27th Jul 20256612 AMAQI
27th Jul 2025531 AMAQI
27th Jul 2025542 AMAQI
27th Jul 2025533 AMAQI
27th Jul 2025544 AMAQI
28°C25/31°C
27th Jul 2025555 AMAQI
27th Jul 2025556 AMAQI
27th Jul 2025557 AMAQI
27th Jul 2025558 AMAQI
27th Jul 2025529 AMAQI
27th Jul 20254510 AMAQI
27th Jul 20255011 AMAQI
27th Jul 20255512 PMAQI
27th Jul 2025541 PMAQI
27th Jul 2025502 PMAQI
27th Jul 2025423 PMAQI
27th Jul 2025374 PMAQI
27th Jul 2025365 PMAQI
27th Jul 2025366 PMAQI
27th Jul 2025467 PMAQI
27th Jul 2025538 PMAQI
27th Jul 2025529 PMAQI
27th Jul 20255410 PMAQI
27th Jul 20255411 PMAQI
28th Jul 20255412 AMAQI
28th Jul 2025551 AMAQI
28th Jul 2025552 AMAQI
28th Jul 2025553 AMAQI
28th Jul 2025554 AMAQI
28°C25/32°C
28th Jul 2025555 AMAQI
28th Jul 2025556 AMAQI
28th Jul 2025557 AMAQI
28th Jul 2025558 AMAQI
28th Jul 2025569 AMAQI
28th Jul 20256110 AMAQI
28th Jul 20255711 AMAQI
28th Jul 20255512 PMAQI
28th Jul 2025501 PMAQI
28th Jul 2025512 PMAQI
28th Jul 2025483 PMAQI
28th Jul 2025524 PMAQI
28th Jul 2025585 PMAQI
28th Jul 2025576 PMAQI
28th Jul 2025597 PMAQI
28th Jul 2025578 PMAQI
28th Jul 2025549 PMAQI
28th Jul 20255410 PMAQI
28th Jul 20255511 PMAQI
29th Jul 20255412 AMAQI
29th Jul 2025541 AMAQI
29th Jul 2025552 AMAQI
29th Jul 2025563 AMAQI
29th Jul 2025554 AMAQI
27°C25/31°C
29th Jul 2025555 AMAQI
29th Jul 2025556 AMAQI
29th Jul 2025547 AMAQI
29th Jul 2025558 AMAQI
29th Jul 2025629 AMAQI
29th Jul 20256410 AMAQI
29th Jul 20255911 AMAQI
29th Jul 20256112 PMAQI
29th Jul 2025621 PMAQI
29th Jul 2025622 PMAQI
29th Jul 2025593 PMAQI
29th Jul 2025524 PMAQI
29th Jul 2025525 PMAQI
29th Jul 2025546 PMAQI
29th Jul 2025537 PMAQI
29th Jul 2025558 PMAQI
29th Jul 2025629 PMAQI
29th Jul 20256210 PMAQI
29th Jul 20256311 PMAQI
30th Jul 20256212 AMAQI
30th Jul 2025541 AMAQI
30th Jul 2025542 AMAQI
30th Jul 2025543 AMAQI
30th Jul 2025554 AMAQI
27°C24/31°C
30th Jul 2025565 AMAQI
30th Jul 2025566 AMAQI
30th Jul 2025567 AMAQI
30th Jul 2025568 AMAQI
30th Jul 2025619 AMAQI
30th Jul 20256310 AMAQI
30th Jul 20256211 AMAQI
30th Jul 20256512 PMAQI
30th Jul 2025651 PMAQI
30th Jul 2025642 PMAQI
30th Jul 2025623 PMAQI
30th Jul 2025664 PMAQI
30th Jul 2025665 PMAQI
30th Jul 2025636 PMAQI
30th Jul 2025607 PMAQI
30th Jul 2025568 PMAQI
30th Jul 2025579 PMAQI
30th Jul 20255810 PMAQI
30th Jul 20256111 PMAQI
31st Jul 20256112 AMAQI
31st Jul 2025551 AMAQI
31st Jul 2025552 AMAQI
31st Jul 2025553 AMAQI
31st Jul 2025554 AMAQI
28°C24/31°C
31st Jul 2025555 AMAQI
31st Jul 2025556 AMAQI
31st Jul 2025557 AMAQI
31st Jul 2025558 AMAQI
31st Jul 2025559 AMAQI
31st Jul 20255510 AMAQI
31st Jul 20255411 AMAQI
31st Jul 20255212 PMAQI
31st Jul 2025541 PMAQI
31st Jul 2025522 PMAQI
31st Jul 2025453 PMAQI
31st Jul 2025534 PMAQI
31st Jul 2025535 PMAQI
31st Jul 2025536 PMAQI
31st Jul 2025547 PMAQI
31st Jul 2025548 PMAQI
31st Jul 2025539 PMAQI
31st Jul 20255310 PMAQI
31st Jul 20255111 PMAQI
1st Aug 20255412 AMAQI
1st Aug 2025541 AMAQI
1st Aug 2025522 AMAQI
1st Aug 2025523 AMAQI
1st Aug 2025544 AMAQI
27°C25/31°C
1st Aug 2025545 AMAQI
1st Aug 2025566 AMAQI
1st Aug 2025557 AMAQI
1st Aug 2025548 AMAQI
1st Aug 2025559 AMAQI
1st Aug 20256110 AMAQI
1st Aug 20255811 AMAQI
1st Aug 20255612 PMAQI
1st Aug 2025561 PMAQI
1st Aug 2025572 PMAQI
1st Aug 2025483 PMAQI
1st Aug 2025604 PMAQI
1st Aug 2025555 PMAQI
1st Aug 2025526 PMAQI
1st Aug 2025577 PMAQI
1st Aug 2025578 PMAQI
1st Aug 2025579 PMAQI
1st Aug 20256010 PMAQI
1st Aug 20255811 PMAQI
2nd Aug 20255912 AMAQI
2nd Aug 2025541 AMAQI
2nd Aug 2025542 AMAQI
2nd Aug 2025553 AMAQI
2nd Aug 2025544 AMAQI
27°C25/30°C
2nd Aug 2025555 AMAQI
2nd Aug 2025556 AMAQI
2nd Aug 2025557 AMAQI
2nd Aug 2025558 AMAQI
2nd Aug 2025779 AMAQI
2nd Aug 20257510 AMAQI
2nd Aug 20257211 AMAQI
2nd Aug 20256612 PMAQI
2nd Aug 2025681 PMAQI
2nd Aug 2025742 PMAQI
2nd Aug 2025623 PMAQI
2nd Aug 2025624 PMAQI
2nd Aug 2025695 PMAQI
2nd Aug 2025706 PMAQI
2nd Aug 2025647 PMAQI
2nd Aug 2025628 PMAQI
2nd Aug 2025589 PMAQI
2nd Aug 20256010 PMAQI
2nd Aug 20255611 PMAQI
3rd Aug 20255712 AMAQI
3rd Aug 2025541 AMAQI
3rd Aug 2025552 AMAQI
3rd Aug 2025543 AMAQI
--°C/°C
5 AM
12 PM
7 PM
12 AM
4 AM
--°C/°C
Day time
Avg. Highest Time
5 AM - 8 AM
55AQI
4 hours / Day
120 hours / Month
Avg. Lowest Time
10 AM - 12 PM
46AQI
3 hours / Day
90 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 8 AM (Avg. 55), while the lowest AQI was between 10 AM to 12 PM (Avg. 46).
Night time
Avg. Highest Time
12 AM - 11 PM
55AQI
9 hours / Day
270 hours / Month
Avg. Lowest Time
12 AM - 11 PM
55AQI
9 hours / Day
270 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 11 PM (Avg. 55), while the lowest AQI was between 12 AM to 11 PM (Avg. 55).
2025 Days Vs Air Quality
Oeyeondo, Boryeong, Chungnam, South Korea
2025
18%
38
77%
165
5%
10
Total number of days with different AQI categories in last 214 days in 2025 (151 days remaining)
Good
38 DaysModerate
165 DaysPoor
10 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 18%
Health Risk Level:
Extreme
In 2025, 18% of 214 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
Oeyeondo, Boryeong, 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
83AQI
83AQI
2nd January 2025
57AQI
57AQI
3rd January 2025
63AQI
63AQI
4th January 2025
58AQI
58AQI
5th January 2025
84AQI
84AQI
6th January 2025
94AQI
94AQI
7th January 2025
61AQI
61AQI
8th January 2025
65AQI
65AQI
9th January 2025
46AQI
46AQI
10th January 2025
58AQI
58AQI
11th January 2025
65AQI
65AQI
12th January 2025
72AQI
72AQI
13th January 2025
84AQI
84AQI
14th January 2025
110AQI
110AQI
15th January 2025
64AQI
64AQI
16th January 2025
79AQI
79AQI
17th January 2025
62AQI
62AQI
18th January 2025
79AQI
79AQI
19th January 2025
81AQI
81AQI
20th January 2025
122AQI
122AQI
21st January 2025
101AQI
101AQI
22nd January 2025
133AQI
133AQI
23rd January 2025
77AQI
77AQI
24th January 2025
99AQI
99AQI
25th January 2025
75AQI
75AQI
26th January 2025
61AQI
61AQI
27th January 2025
73AQI
73AQI
28th January 2025
59AQI
59AQI
29th January 2025
62AQI
62AQI
30th January 2025
65AQI
65AQI
31st January 2025
74AQI
74AQI
1st February 2025
96AQI
96AQI
2nd February 2025
92AQI
92AQI
3rd February 2025
70AQI
70AQI
4th February 2025
60AQI
60AQI
5th February 2025
52AQI
52AQI
6th February 2025
55AQI
55AQI
7th February 2025
52AQI
52AQI
8th February 2025
49AQI
49AQI
9th February 2025
52AQI
52AQI
10th February 2025
60AQI
60AQI
11th February 2025
68AQI
68AQI
12th February 2025
59AQI
59AQI
13th February 2025
55AQI
55AQI
14th February 2025
78AQI
78AQI
15th February 2025
61AQI
61AQI
16th February 2025
103AQI
103AQI
17th February 2025
56AQI
56AQI
18th February 2025
67AQI
67AQI
19th February 2025
49AQI
49AQI
20th February 2025
56AQI
56AQI
21st February 2025
56AQI
56AQI
22nd February 2025
60AQI
60AQI
23rd February 2025
59AQI
59AQI
24th February 2025
59AQI
59AQI
25th February 2025
58AQI
58AQI
26th February 2025
77AQI
77AQI
27th February 2025
61AQI
61AQI
28th February 2025
66AQI
66AQI
1st March 2025
70AQI
70AQI
2nd March 2025
67AQI
67AQI
3rd March 2025
50AQI
50AQI
4th March 2025
48AQI
48AQI
5th March 2025
43AQI
43AQI
6th March 2025
79AQI
79AQI
7th March 2025
78AQI
78AQI
8th March 2025
77AQI
77AQI
9th March 2025
84AQI
84AQI
10th March 2025
98AQI
98AQI
11th March 2025
94AQI
94AQI
12th March 2025
99AQI
99AQI
13th March 2025
78AQI
78AQI
14th March 2025
76AQI
76AQI
15th March 2025
66AQI
66AQI
16th March 2025
71AQI
71AQI
17th March 2025
67AQI
67AQI
18th March 2025
87AQI
87AQI
19th March 2025
85AQI
85AQI
20th March 2025
94AQI
94AQI
21st March 2025
104AQI
104AQI
22nd March 2025
118AQI
118AQI
23rd March 2025
117AQI
117AQI
24th March 2025
114AQI
114AQI
25th March 2025
114AQI
114AQI
26th March 2025
96AQI
96AQI
27th March 2025
86AQI
86AQI
28th March 2025
70AQI
70AQI
29th March 2025
56AQI
56AQI
30th March 2025
53AQI
53AQI
31st March 2025
64AQI
64AQI
1st April 2025
78AQI
78AQI
2nd April 2025
72AQI
72AQI
3rd April 2025
92AQI
92AQI
4th April 2025
87AQI
87AQI
5th April 2025
79AQI
79AQI
6th April 2025
74AQI
74AQI
7th April 2025
74AQI
74AQI
8th April 2025
84AQI
84AQI
9th April 2025
74AQI
74AQI
10th April 2025
79AQI
79AQI
11th April 2025
70AQI
70AQI
12th April 2025
66AQI
66AQI
13th April 2025
61AQI
61AQI
14th April 2025
45AQI
45AQI
15th April 2025
59AQI
59AQI
16th April 2025
63AQI
63AQI
17th April 2025
66AQI
66AQI
18th April 2025
75AQI
75AQI
19th April 2025
49AQI
49AQI
20th April 2025
69AQI
69AQI
21st April 2025
55AQI
55AQI
22nd April 2025
43AQI
43AQI
23rd April 2025
44AQI
44AQI
24th April 2025
60AQI
60AQI
25th April 2025
48AQI
48AQI
26th April 2025
51AQI
51AQI
27th April 2025
46AQI
46AQI
28th April 2025
66AQI
66AQI
29th April 2025
64AQI
64AQI
30th April 2025
59AQI
59AQI
1st May 2025
55AQI
55AQI
2nd May 2025
53AQI
53AQI
3rd May 2025
49AQI
49AQI
4th May 2025
51AQI
51AQI
5th May 2025
49AQI
49AQI
6th May 2025
55AQI
55AQI
7th May 2025
53AQI
53AQI
8th May 2025
59AQI
59AQI
9th May 2025
44AQI
44AQI
10th May 2025
55AQI
55AQI
11th May 2025
69AQI
69AQI
12th May 2025
74AQI
74AQI
13th May 2025
75AQI
75AQI
14th May 2025
74AQI
74AQI
15th May 2025
57AQI
57AQI
16th May 2025
43AQI
43AQI
17th May 2025
49AQI
49AQI
18th May 2025
58AQI
58AQI
19th May 2025
55AQI
55AQI
20th May 2025
37AQI
37AQI
21st May 2025
40AQI
40AQI
22nd May 2025
49AQI
49AQI
23rd May 2025
58AQI
58AQI
24th May 2025
59AQI
59AQI
25th May 2025
53AQI
53AQI
26th May 2025
65AQI
65AQI
27th May 2025
64AQI
64AQI
28th May 2025
64AQI
64AQI
29th May 2025
69AQI
69AQI
30th May 2025
67AQI
67AQI
31st May 2025
67AQI
67AQI
1st June 2025
69AQI
69AQI
2nd June 2025
72AQI
72AQI
3rd June 2025
64AQI
64AQI
4th June 2025
55AQI
55AQI
5th June 2025
54AQI
54AQI
6th June 2025
56AQI
56AQI
7th June 2025
58AQI
58AQI
8th June 2025
57AQI
57AQI
9th June 2025
48AQI
48AQI
10th June 2025
43AQI
43AQI
11th June 2025
56AQI
56AQI
12th June 2025
53AQI
53AQI
13th June 2025
58AQI
58AQI
14th June 2025
57AQI
57AQI
15th June 2025
51AQI
51AQI
16th June 2025
51AQI
51AQI
17th June 2025
53AQI
53AQI
18th June 2025
57AQI
57AQI
19th June 2025
55AQI
55AQI
20th June 2025
47AQI
47AQI
21st June 2025
48AQI
48AQI
22nd June 2025
49AQI
49AQI
23rd June 2025
53AQI
53AQI
24th June 2025
57AQI
57AQI
25th June 2025
52AQI
52AQI
26th June 2025
58AQI
58AQI
27th June 2025
59AQI
59AQI
28th June 2025
55AQI
55AQI
29th June 2025
49AQI
49AQI
30th June 2025
47AQI
47AQI
1st July 2025
46AQI
46AQI
2nd July 2025
51AQI
51AQI
3rd July 2025
49AQI
49AQI
4th July 2025
51AQI
51AQI
5th July 2025
47AQI
47AQI
6th July 2025
48AQI
48AQI
7th July 2025
51AQI
51AQI
8th July 2025
57AQI
57AQI
9th July 2025
57AQI
57AQI
10th July 2025
55AQI
55AQI
11th July 2025
56AQI
56AQI
12th July 2025
55AQI
55AQI
13th July 2025
58AQI
58AQI
14th July 2025
56AQI
56AQI
15th July 2025
49AQI
49AQI
16th July 2025
57AQI
57AQI
17th July 2025
55AQI
55AQI
18th July 2025
51AQI
51AQI
19th July 2025
48AQI
48AQI
20th July 2025
47AQI
47AQI
21st July 2025
43AQI
43AQI
22nd July 2025
39AQI
39AQI
23rd July 2025
39AQI
39AQI
24th July 2025
45AQI
45AQI
25th July 2025
63AQI
63AQI
26th July 2025
63AQI
63AQI
27th July 2025
51AQI
51AQI
28th July 2025
55AQI
55AQI
29th July 2025
57AQI
57AQI
30th July 2025
59AQI
59AQI
31st July 2025
54AQI
54AQI
1st August 2025
55AQI
55AQI
76AQI
64AQI
81AQI
65AQI
57AQI
55AQI
52AQI
55AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202564AQI
1
26
4
2
25
1
3
23
5
6
24
8
23
7
23
11
20
1
38
165
10
Highest AQI recorded in
March81AQI
Lowest AQI recorded in
July52AQI
202461AQI
9
18
4
7
14
8
2
24
3
2
4
21
5
13
18
15
15
26
5
20
11
21
9
5
25
1
4
24
2
1
30
127
214
23
2
Highest AQI recorded in
March78AQI
Lowest AQI recorded in
July37AQI
202368AQI
12
13
5
1
1
18
7
2
3
19
8
1
1
20
5
1
2
1
8
22
1
15
15
15
10
4
2
16
15
24
6
7
22
2
3
25
1
5
20
6
110
205
39
7
2
1
Highest AQI recorded in
April98AQI
Lowest AQI recorded in
September37AQI
202272AQI
8
15
6
1
1
15
5
1
6
21
4
4
23
3
4
27
18
12
11
11
1
6
19
3
23
8
2
15
10
3
9
19
3
70
200
42
5
Highest AQI recorded in
November99AQI
Lowest AQI recorded in
August44AQI
202162AQI
3
3
24
2
1
1
7
22
1
14
16
1
12
16
21
9
15
16
9
16
4
1
12
14
4
1
93
136
12
2
1
1
Highest AQI recorded in
April85AQI
Lowest AQI recorded in
September44AQI
Most & Least Polluted Years Over the Last 5 Years
Most Polluted Year Recorded
2022(Avg.)
72AQILeast Polluted Year Recorded
2024(Avg.)
61AQIOeyeondo's annual 2025 AQI (64) shows an average percentage change of -1.4% (improved AQI) compared to previous years: 2021 (62), 2022 (72), 2023 (68), 2024 (61).
