Wonsi Dong, Ansan, 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
Wonsi Dong, Ansan, Gyeonggi, South Korea
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
31st Aug 2021
120AQILowest AQI recorded on
9th Aug 2023
18AQISame Day Analysis (3rd August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 61 of Moderate air quality, showing improvement over 2024 and 2023 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 3rd Aug - 4th Aug 2025
Wonsi Dong, Ansan, Gyeonggi, South Korea
AQI
Day
Night
.
5 AM3rd Aug 2025
7 PM
4 AM4th Aug 2025
Day time
Avg. Highest Time
11AM3rd Aug
76AQI
Avg. Lowest Time
6AM3rd Aug
58AQI
Night time
Avg. Highest Time
9PM3rd Aug
60AQI
Avg. Lowest Time
11PM3rd Aug
53AQI
In the last 24 hours,
Wonsi Dong's AQI reached its highest point of 76 at 11 AM during the Day, while the lowest point, 53, was recorded at 11 PM during the Night between 3rd Aug and 4th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Wonsi Dong, Ansan, 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 2025535 AMAQI
5th Jul 2025536 AMAQI
5th Jul 2025547 AMAQI
5th Jul 2025538 AMAQI
5th Jul 2025439 AMAQI
5th Jul 20254610 AMAQI
5th Jul 20255511 AMAQI
5th Jul 20255212 PMAQI
5th Jul 2025531 PMAQI
5th Jul 2025542 PMAQI
5th Jul 2025523 PMAQI
5th Jul 2025524 PMAQI
5th Jul 2025525 PMAQI
5th Jul 2025526 PMAQI
5th Jul 2025527 PMAQI
5th Jul 2025528 PMAQI
5th Jul 2025539 PMAQI
5th Jul 20255210 PMAQI
5th Jul 20255211 PMAQI
6th Jul 20255212 AMAQI
6th Jul 2025531 AMAQI
6th Jul 2025522 AMAQI
6th Jul 2025523 AMAQI
6th Jul 2025534 AMAQI
27°C24/32°C
6th Jul 2025525 AMAQI
6th Jul 2025526 AMAQI
6th Jul 2025537 AMAQI
6th Jul 2025528 AMAQI
6th Jul 2025559 AMAQI
6th Jul 20256110 AMAQI
6th Jul 20256211 AMAQI
6th Jul 20255512 PMAQI
6th Jul 2025571 PMAQI
6th Jul 2025582 PMAQI
6th Jul 2025623 PMAQI
6th Jul 2025624 PMAQI
6th Jul 2025565 PMAQI
6th Jul 2025566 PMAQI
6th Jul 2025547 PMAQI
6th Jul 2025548 PMAQI
6th Jul 2025539 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
28°C24/32°C
7th Jul 2025535 AMAQI
7th Jul 2025536 AMAQI
7th Jul 2025537 AMAQI
7th Jul 2025538 AMAQI
7th Jul 2025669 AMAQI
7th Jul 20258010 AMAQI
7th Jul 202511811 AMAQI
7th Jul 202510712 PMAQI
7th Jul 2025941 PMAQI
7th Jul 2025932 PMAQI
7th Jul 2025983 PMAQI
7th Jul 2025924 PMAQI
7th Jul 2025925 PMAQI
7th Jul 2025896 PMAQI
7th Jul 2025787 PMAQI
7th Jul 2025678 PMAQI
7th Jul 2025559 PMAQI
7th Jul 20255410 PMAQI
7th Jul 20255411 PMAQI
8th Jul 20255512 AMAQI
8th Jul 2025551 AMAQI
8th Jul 2025532 AMAQI
8th Jul 2025533 AMAQI
8th Jul 2025534 AMAQI
29°C25/33°C
8th Jul 2025545 AMAQI
8th Jul 2025556 AMAQI
8th Jul 2025557 AMAQI
8th Jul 2025548 AMAQI
8th Jul 20251019 AMAQI
8th Jul 202511410 AMAQI
8th Jul 202510511 AMAQI
8th Jul 20259812 PMAQI
8th Jul 2025951 PMAQI
8th Jul 2025902 PMAQI
8th Jul 2025963 PMAQI
8th Jul 2025974 PMAQI
8th Jul 20251015 PMAQI
8th Jul 2025946 PMAQI
8th Jul 20251017 PMAQI
8th Jul 2025858 PMAQI
8th Jul 2025669 PMAQI
8th Jul 20255710 PMAQI
8th Jul 20255611 PMAQI
9th Jul 20255812 AMAQI
9th Jul 2025541 AMAQI
9th Jul 2025542 AMAQI
9th Jul 2025553 AMAQI
9th Jul 2025574 AMAQI
31°C26/37°C
9th Jul 2025635 AMAQI
9th Jul 2025636 AMAQI
9th Jul 2025637 AMAQI
9th Jul 2025628 AMAQI
9th Jul 2025689 AMAQI
9th Jul 20257110 AMAQI
9th Jul 20256911 AMAQI
9th Jul 20256412 PMAQI
9th Jul 2025621 PMAQI
9th Jul 2025692 PMAQI
9th Jul 2025633 PMAQI
9th Jul 2025604 PMAQI
9th Jul 2025595 PMAQI
9th Jul 2025586 PMAQI
9th Jul 2025627 PMAQI
9th Jul 2025728 PMAQI
9th Jul 2025599 PMAQI
9th Jul 20256010 PMAQI
9th Jul 20256011 PMAQI
10th Jul 20256012 AMAQI
10th Jul 2025611 AMAQI
10th Jul 2025602 AMAQI
10th Jul 2025583 AMAQI
10th Jul 2025584 AMAQI
31°C26/37°C
10th Jul 2025585 AMAQI
10th Jul 2025586 AMAQI
10th Jul 2025587 AMAQI
10th Jul 2025588 AMAQI
10th Jul 2025489 AMAQI
10th Jul 20254810 AMAQI
10th Jul 20254411 AMAQI
10th Jul 20254512 PMAQI
10th Jul 2025541 PMAQI
10th Jul 2025552 PMAQI
10th Jul 2025543 PMAQI
10th Jul 2025554 PMAQI
10th Jul 2025545 PMAQI
10th Jul 2025556 PMAQI
10th Jul 2025467 PMAQI
10th Jul 2025538 PMAQI
10th Jul 2025569 PMAQI
10th Jul 20255710 PMAQI
10th Jul 20255611 PMAQI
11th Jul 20255512 AMAQI
11th Jul 2025581 AMAQI
11th Jul 2025592 AMAQI
11th Jul 2025593 AMAQI
11th Jul 2025594 AMAQI
31°C27/36°C
11th Jul 2025585 AMAQI
11th Jul 2025606 AMAQI
11th Jul 2025597 AMAQI
11th Jul 2025588 AMAQI
11th Jul 2025549 AMAQI
11th Jul 20255410 AMAQI
11th Jul 20253411 AMAQI
11th Jul 20253812 PMAQI
11th Jul 2025501 PMAQI
11th Jul 2025462 PMAQI
11th Jul 2025493 PMAQI
11th Jul 2025514 PMAQI
11th Jul 2025525 PMAQI
11th Jul 2025506 PMAQI
11th Jul 2025507 PMAQI
11th Jul 2025528 PMAQI
11th Jul 2025549 PMAQI
11th Jul 20255610 PMAQI
11th Jul 20255611 PMAQI
12th Jul 20255712 AMAQI
12th Jul 2025571 AMAQI
12th Jul 2025562 AMAQI
12th Jul 2025573 AMAQI
12th Jul 2025564 AMAQI
30°C25/35°C
12th Jul 2025555 AMAQI
12th Jul 2025556 AMAQI
12th Jul 2025557 AMAQI
12th Jul 2025558 AMAQI
12th Jul 2025369 AMAQI
12th Jul 20252910 AMAQI
12th Jul 20253711 AMAQI
12th Jul 20253812 PMAQI
12th Jul 2025471 PMAQI
12th Jul 2025522 PMAQI
12th Jul 2025523 PMAQI
12th Jul 2025534 PMAQI
12th Jul 2025465 PMAQI
12th Jul 2025536 PMAQI
12th Jul 2025597 PMAQI
12th Jul 2025618 PMAQI
12th Jul 2025579 PMAQI
12th Jul 20255710 PMAQI
12th Jul 20255711 PMAQI
13th Jul 20255712 AMAQI
13th Jul 2025571 AMAQI
13th Jul 2025562 AMAQI
13th Jul 2025563 AMAQI
13th Jul 2025564 AMAQI
29°C24/34°C
13th Jul 2025555 AMAQI
13th Jul 2025566 AMAQI
13th Jul 2025557 AMAQI
13th Jul 2025568 AMAQI
13th Jul 2025629 AMAQI
13th Jul 20257310 AMAQI
13th Jul 20257311 AMAQI
13th Jul 20257512 PMAQI
13th Jul 2025711 PMAQI
13th Jul 2025692 PMAQI
13th Jul 2025733 PMAQI
13th Jul 2025764 PMAQI
13th Jul 2025725 PMAQI
13th Jul 2025726 PMAQI
13th Jul 2025727 PMAQI
13th Jul 2025678 PMAQI
13th Jul 2025599 PMAQI
13th Jul 20255810 PMAQI
13th Jul 20255811 PMAQI
14th Jul 20255812 AMAQI
14th Jul 2025561 AMAQI
14th Jul 2025562 AMAQI
14th Jul 2025563 AMAQI
14th Jul 2025564 AMAQI
26°C23/30°C
14th Jul 2025575 AMAQI
14th Jul 2025576 AMAQI
14th Jul 2025577 AMAQI
14th Jul 2025578 AMAQI
14th Jul 2025729 AMAQI
14th Jul 20257710 AMAQI
14th Jul 20258411 AMAQI
14th Jul 20258512 PMAQI
14th Jul 2025801 PMAQI
14th Jul 2025762 PMAQI
14th Jul 2025643 PMAQI
14th Jul 2025584 PMAQI
14th Jul 2025525 PMAQI
14th Jul 2025506 PMAQI
14th Jul 2025407 PMAQI
14th Jul 2025468 PMAQI
14th Jul 2025559 PMAQI
14th Jul 20255410 PMAQI
14th Jul 20255611 PMAQI
15th Jul 20255512 AMAQI
15th Jul 2025571 AMAQI
15th Jul 2025572 AMAQI
15th Jul 2025573 AMAQI
15th Jul 2025584 AMAQI
23°C19/29°C
15th Jul 2025585 AMAQI
15th Jul 2025586 AMAQI
15th Jul 2025587 AMAQI
15th Jul 2025588 AMAQI
15th Jul 2025309 AMAQI
15th Jul 20251910 AMAQI
15th Jul 20251911 AMAQI
15th Jul 20252412 PMAQI
15th Jul 2025481 PMAQI
15th Jul 2025462 PMAQI
15th Jul 2025463 PMAQI
15th Jul 2025474 PMAQI
15th Jul 2025485 PMAQI
15th Jul 2025536 PMAQI
15th Jul 2025517 PMAQI
15th Jul 2025448 PMAQI
15th Jul 2025549 PMAQI
15th Jul 20255410 PMAQI
15th Jul 20255611 PMAQI
16th Jul 20255512 AMAQI
16th Jul 2025561 AMAQI
16th Jul 2025562 AMAQI
16th Jul 2025563 AMAQI
16th Jul 2025564 AMAQI
22°C20/24°C
16th Jul 2025555 AMAQI
16th Jul 2025556 AMAQI
16th Jul 2025557 AMAQI
16th Jul 2025558 AMAQI
16th Jul 2025669 AMAQI
16th Jul 20256910 AMAQI
16th Jul 20257211 AMAQI
16th Jul 20257012 PMAQI
16th Jul 2025661 PMAQI
16th Jul 2025622 PMAQI
16th Jul 2025623 PMAQI
16th Jul 2025604 PMAQI
16th Jul 2025585 PMAQI
16th Jul 2025556 PMAQI
16th Jul 2025467 PMAQI
16th Jul 2025468 PMAQI
16th Jul 2025549 PMAQI
16th Jul 20255410 PMAQI
16th Jul 20255411 PMAQI
17th Jul 20255412 AMAQI
17th Jul 2025551 AMAQI
17th Jul 2025552 AMAQI
17th Jul 2025553 AMAQI
17th Jul 2025554 AMAQI
22°C21/25°C
17th Jul 2025565 AMAQI
17th Jul 2025566 AMAQI
17th Jul 2025557 AMAQI
17th Jul 2025558 AMAQI
17th Jul 2025279 AMAQI
17th Jul 20251610 AMAQI
17th Jul 20251611 AMAQI
17th Jul 20252012 PMAQI
17th Jul 2025331 PMAQI
17th Jul 2025332 PMAQI
17th Jul 2025333 PMAQI
17th Jul 2025354 PMAQI
17th Jul 2025325 PMAQI
17th Jul 2025306 PMAQI
17th Jul 2025417 PMAQI
17th Jul 2025398 PMAQI
17th Jul 2025539 PMAQI
17th Jul 20255210 PMAQI
17th Jul 20255211 PMAQI
18th Jul 20255312 AMAQI
18th Jul 2025541 AMAQI
18th Jul 2025542 AMAQI
18th Jul 2025553 AMAQI
18th Jul 2025544 AMAQI
23°C21/26°C
18th Jul 2025545 AMAQI
18th Jul 2025546 AMAQI
18th Jul 2025547 AMAQI
18th Jul 2025548 AMAQI
18th Jul 2025369 AMAQI
18th Jul 20253610 AMAQI
18th Jul 20253311 AMAQI
18th Jul 20253212 PMAQI
18th Jul 2025321 PMAQI
18th Jul 2025332 PMAQI
18th Jul 2025293 PMAQI
18th Jul 2025334 PMAQI
18th Jul 2025365 PMAQI
18th Jul 2025456 PMAQI
18th Jul 2025507 PMAQI
18th Jul 2025528 PMAQI
18th Jul 2025559 PMAQI
18th Jul 20255510 PMAQI
18th Jul 20255611 PMAQI
19th Jul 20255712 AMAQI
19th Jul 2025541 AMAQI
19th Jul 2025542 AMAQI
19th Jul 2025543 AMAQI
19th Jul 2025534 AMAQI
23°C22/25°C
19th Jul 2025525 AMAQI
19th Jul 2025526 AMAQI
19th Jul 2025527 AMAQI
19th Jul 2025528 AMAQI
19th Jul 2025229 AMAQI
19th Jul 20251310 AMAQI
19th Jul 20251711 AMAQI
19th Jul 20251512 PMAQI
19th Jul 2025171 PMAQI
19th Jul 2025172 PMAQI
19th Jul 2025163 PMAQI
19th Jul 2025174 PMAQI
19th Jul 2025185 PMAQI
19th Jul 2025326 PMAQI
19th Jul 2025407 PMAQI
19th Jul 2025408 PMAQI
19th Jul 2025459 PMAQI
19th Jul 20253910 PMAQI
19th Jul 20253811 PMAQI
20th Jul 20254012 AMAQI
20th Jul 2025451 AMAQI
20th Jul 2025532 AMAQI
20th Jul 2025533 AMAQI
20th Jul 2025524 AMAQI
25°C22/28°C
20th Jul 2025485 AMAQI
20th Jul 2025486 AMAQI
20th Jul 2025487 AMAQI
20th Jul 2025488 AMAQI
20th Jul 2025339 AMAQI
20th Jul 20252210 AMAQI
20th Jul 20253511 AMAQI
20th Jul 20253912 PMAQI
20th Jul 2025401 PMAQI
20th Jul 2025402 PMAQI
20th Jul 2025383 PMAQI
20th Jul 2025384 PMAQI
20th Jul 2025385 PMAQI
20th Jul 2025396 PMAQI
20th Jul 2025367 PMAQI
20th Jul 2025448 PMAQI
20th Jul 2025509 PMAQI
20th Jul 20255410 PMAQI
20th Jul 20255411 PMAQI
21st Jul 20255512 AMAQI
21st Jul 2025521 AMAQI
21st Jul 2025502 AMAQI
21st Jul 2025503 AMAQI
21st Jul 2025484 AMAQI
27°C23/32°C
21st Jul 2025465 AMAQI
21st Jul 2025476 AMAQI
21st Jul 2025467 AMAQI
21st Jul 2025468 AMAQI
21st Jul 2025569 AMAQI
21st Jul 20255410 AMAQI
21st Jul 20255611 AMAQI
21st Jul 20255412 PMAQI
21st Jul 2025451 PMAQI
21st Jul 2025482 PMAQI
21st Jul 2025563 PMAQI
21st Jul 2025564 PMAQI
21st Jul 2025565 PMAQI
21st Jul 2025566 PMAQI
21st Jul 2025257 PMAQI
21st Jul 2025448 PMAQI
21st Jul 2025479 PMAQI
21st Jul 20254310 PMAQI
21st Jul 20254211 PMAQI
22nd Jul 20254112 AMAQI
22nd Jul 2025471 AMAQI
22nd Jul 2025492 AMAQI
22nd Jul 2025503 AMAQI
22nd Jul 2025504 AMAQI
28°C25/31°C
22nd Jul 2025505 AMAQI
22nd Jul 2025506 AMAQI
22nd Jul 2025517 AMAQI
22nd Jul 2025508 AMAQI
22nd Jul 2025429 AMAQI
22nd Jul 20255310 AMAQI
22nd Jul 20255711 AMAQI
22nd Jul 20255812 PMAQI
22nd Jul 2025501 PMAQI
22nd Jul 2025492 PMAQI
22nd Jul 2025543 PMAQI
22nd Jul 2025484 PMAQI
22nd Jul 2025405 PMAQI
22nd Jul 2025346 PMAQI
22nd Jul 2025317 PMAQI
22nd Jul 2025358 PMAQI
22nd Jul 2025449 PMAQI
22nd Jul 20254510 PMAQI
22nd Jul 20254411 PMAQI
23rd Jul 20254812 AMAQI
23rd Jul 2025491 AMAQI
23rd Jul 2025512 AMAQI
23rd Jul 2025503 AMAQI
23rd Jul 2025484 AMAQI
28°C25/32°C
23rd Jul 2025485 AMAQI
23rd Jul 2025486 AMAQI
23rd Jul 2025487 AMAQI
23rd Jul 2025488 AMAQI
23rd Jul 2025399 AMAQI
23rd Jul 20253810 AMAQI
23rd Jul 20254811 AMAQI
23rd Jul 20255412 PMAQI
23rd Jul 2025541 PMAQI
23rd Jul 2025722 PMAQI
23rd Jul 2025573 PMAQI
23rd Jul 2025534 PMAQI
23rd Jul 2025595 PMAQI
23rd Jul 2025636 PMAQI
23rd Jul 2025627 PMAQI
23rd Jul 2025548 PMAQI
23rd Jul 2025529 PMAQI
23rd Jul 20255110 PMAQI
23rd Jul 20254811 PMAQI
24th Jul 20254412 AMAQI
24th Jul 2025481 AMAQI
24th Jul 2025492 AMAQI
24th Jul 2025483 AMAQI
24th Jul 2025494 AMAQI
28°C25/32°C
24th Jul 2025505 AMAQI
24th Jul 2025506 AMAQI
24th Jul 2025517 AMAQI
24th Jul 2025518 AMAQI
24th Jul 2025589 AMAQI
24th Jul 20255710 AMAQI
24th Jul 20254411 AMAQI
24th Jul 20255112 PMAQI
24th Jul 2025521 PMAQI
24th Jul 2025622 PMAQI
24th Jul 2025683 PMAQI
24th Jul 2025764 PMAQI
24th Jul 2025765 PMAQI
24th Jul 2025766 PMAQI
24th Jul 2025697 PMAQI
24th Jul 2025688 PMAQI
24th Jul 2025619 PMAQI
24th Jul 20256110 PMAQI
24th Jul 20256111 PMAQI
25th Jul 20256012 AMAQI
25th Jul 2025621 AMAQI
25th Jul 2025522 AMAQI
25th Jul 2025493 AMAQI
25th Jul 2025494 AMAQI
28°C25/32°C
25th Jul 2025515 AMAQI
25th Jul 2025516 AMAQI
25th Jul 2025527 AMAQI
25th Jul 2025518 AMAQI
25th Jul 2025689 AMAQI
25th Jul 20257410 AMAQI
25th Jul 20257711 AMAQI
25th Jul 20258512 PMAQI
25th Jul 2025911 PMAQI
25th Jul 2025822 PMAQI
25th Jul 2025843 PMAQI
25th Jul 2025824 PMAQI
25th Jul 2025965 PMAQI
25th Jul 20251006 PMAQI
25th Jul 2025937 PMAQI
25th Jul 2025818 PMAQI
25th Jul 2025699 PMAQI
25th Jul 20257110 PMAQI
25th Jul 20256911 PMAQI
26th Jul 20256712 AMAQI
26th Jul 2025531 AMAQI
26th Jul 2025532 AMAQI
26th Jul 2025523 AMAQI
26th Jul 2025544 AMAQI
30°C26/35°C
26th Jul 2025585 AMAQI
26th Jul 2025586 AMAQI
26th Jul 2025587 AMAQI
26th Jul 2025588 AMAQI
26th Jul 2025629 AMAQI
26th Jul 20255810 AMAQI
26th Jul 20254411 AMAQI
26th Jul 20254212 PMAQI
26th Jul 2025491 PMAQI
26th Jul 2025522 PMAQI
26th Jul 2025523 PMAQI
26th Jul 2025534 PMAQI
26th Jul 2025595 PMAQI
26th Jul 2025706 PMAQI
26th Jul 2025787 PMAQI
26th Jul 2025908 PMAQI
26th Jul 2025729 PMAQI
26th Jul 20257810 PMAQI
26th Jul 20258111 PMAQI
27th Jul 20257812 AMAQI
27th Jul 2025561 AMAQI
27th Jul 2025562 AMAQI
27th Jul 2025563 AMAQI
27th Jul 2025564 AMAQI
31°C28/35°C
27th Jul 2025555 AMAQI
27th Jul 2025556 AMAQI
27th Jul 2025557 AMAQI
27th Jul 2025558 AMAQI
27th Jul 2025449 AMAQI
27th Jul 20253110 AMAQI
27th Jul 20252611 AMAQI
27th Jul 20253012 PMAQI
27th Jul 2025421 PMAQI
27th Jul 2025362 PMAQI
27th Jul 2025433 PMAQI
27th Jul 2025424 PMAQI
27th Jul 2025405 PMAQI
27th Jul 2025526 PMAQI
27th Jul 2025667 PMAQI
27th Jul 2025668 PMAQI
27th Jul 2025709 PMAQI
27th Jul 20257010 PMAQI
27th Jul 20257311 PMAQI
28th Jul 20257212 AMAQI
28th Jul 2025581 AMAQI
28th Jul 2025582 AMAQI
28th Jul 2025573 AMAQI
28th Jul 2025564 AMAQI
31°C28/35°C
28th Jul 2025545 AMAQI
28th Jul 2025546 AMAQI
28th Jul 2025547 AMAQI
28th Jul 2025548 AMAQI
28th Jul 2025789 AMAQI
28th Jul 20258510 AMAQI
28th Jul 20259511 AMAQI
28th Jul 20258612 PMAQI
28th Jul 2025761 PMAQI
28th Jul 2025712 PMAQI
28th Jul 2025733 PMAQI
28th Jul 2025804 PMAQI
28th Jul 2025865 PMAQI
28th Jul 2025886 PMAQI
28th Jul 2025887 PMAQI
28th Jul 2025818 PMAQI
28th Jul 2025719 PMAQI
28th Jul 20256610 PMAQI
28th Jul 20256511 PMAQI
29th Jul 20256412 AMAQI
29th Jul 2025591 AMAQI
29th Jul 2025582 AMAQI
29th Jul 2025583 AMAQI
29th Jul 2025584 AMAQI
30°C28/35°C
29th Jul 2025625 AMAQI
29th Jul 2025626 AMAQI
29th Jul 2025627 AMAQI
29th Jul 2025628 AMAQI
29th Jul 2025749 AMAQI
29th Jul 20258310 AMAQI
29th Jul 20258811 AMAQI
29th Jul 20259512 PMAQI
29th Jul 2025961 PMAQI
29th Jul 2025922 PMAQI
29th Jul 2025983 PMAQI
29th Jul 2025914 PMAQI
29th Jul 2025985 PMAQI
29th Jul 2025786 PMAQI
29th Jul 2025797 PMAQI
29th Jul 2025758 PMAQI
29th Jul 2025649 PMAQI
29th Jul 20257010 PMAQI
29th Jul 20257111 PMAQI
30th Jul 20257012 AMAQI
30th Jul 2025601 AMAQI
30th Jul 2025602 AMAQI
30th Jul 2025603 AMAQI
30th Jul 2025624 AMAQI
31°C27/36°C
30th Jul 2025645 AMAQI
30th Jul 2025646 AMAQI
30th Jul 2025647 AMAQI
30th Jul 2025658 AMAQI
30th Jul 2025809 AMAQI
30th Jul 20258410 AMAQI
30th Jul 20258211 AMAQI
30th Jul 20258812 PMAQI
30th Jul 2025881 PMAQI
30th Jul 2025942 PMAQI
30th Jul 2025883 PMAQI
30th Jul 2025994 PMAQI
30th Jul 20251205 PMAQI
30th Jul 20251046 PMAQI
30th Jul 2025967 PMAQI
30th Jul 2025838 PMAQI
30th Jul 2025719 PMAQI
30th Jul 20257010 PMAQI
30th Jul 20256911 PMAQI
31st Jul 20257312 AMAQI
31st Jul 2025611 AMAQI
31st Jul 2025622 AMAQI
31st Jul 2025613 AMAQI
31st Jul 2025614 AMAQI
31°C28/36°C
31st Jul 2025615 AMAQI
31st Jul 2025616 AMAQI
31st Jul 2025617 AMAQI
31st Jul 2025618 AMAQI
31st Jul 2025619 AMAQI
31st Jul 20256110 AMAQI
31st Jul 20256811 AMAQI
31st Jul 20257512 PMAQI
31st Jul 2025751 PMAQI
31st Jul 2025802 PMAQI
31st Jul 2025843 PMAQI
31st Jul 2025814 PMAQI
31st Jul 2025825 PMAQI
31st Jul 2025826 PMAQI
31st Jul 2025947 PMAQI
31st Jul 2025798 PMAQI
31st Jul 2025549 PMAQI
31st Jul 20255610 PMAQI
31st Jul 20255611 PMAQI
1st Aug 20255712 AMAQI
1st Aug 2025551 AMAQI
1st Aug 2025542 AMAQI
1st Aug 2025543 AMAQI
1st Aug 2025564 AMAQI
30°C27/34°C
1st Aug 2025555 AMAQI
1st Aug 2025566 AMAQI
1st Aug 2025567 AMAQI
1st Aug 2025558 AMAQI
1st Aug 2025609 AMAQI
1st Aug 20256510 AMAQI
1st Aug 20255811 AMAQI
1st Aug 20255712 PMAQI
1st Aug 2025561 PMAQI
1st Aug 2025642 PMAQI
1st Aug 2025733 PMAQI
1st Aug 2025644 PMAQI
1st Aug 2025775 PMAQI
1st Aug 2025666 PMAQI
1st Aug 2025667 PMAQI
1st Aug 2025628 PMAQI
1st Aug 2025629 PMAQI
1st Aug 20256110 PMAQI
1st Aug 20256111 PMAQI
2nd Aug 20255812 AMAQI
2nd Aug 2025551 AMAQI
2nd Aug 2025542 AMAQI
2nd Aug 2025553 AMAQI
2nd Aug 2025564 AMAQI
30°C27/34°C
2nd Aug 2025555 AMAQI
2nd Aug 2025566 AMAQI
2nd Aug 2025567 AMAQI
2nd Aug 2025568 AMAQI
2nd Aug 2025789 AMAQI
2nd Aug 20258010 AMAQI
2nd Aug 20257411 AMAQI
2nd Aug 20258612 PMAQI
2nd Aug 2025801 PMAQI
2nd Aug 2025662 PMAQI
2nd Aug 2025653 PMAQI
2nd Aug 2025684 PMAQI
2nd Aug 2025625 PMAQI
2nd Aug 2025686 PMAQI
2nd Aug 2025677 PMAQI
2nd Aug 2025598 PMAQI
2nd Aug 2025609 PMAQI
2nd Aug 20256110 PMAQI
2nd Aug 20256111 PMAQI
3rd Aug 20255712 AMAQI
3rd Aug 2025541 AMAQI
3rd Aug 2025552 AMAQI
3rd Aug 2025563 AMAQI
3rd Aug 2025584 AMAQI
30°C27/34°C
3rd Aug 2025595 AMAQI
3rd Aug 2025586 AMAQI
3rd Aug 2025597 AMAQI
3rd Aug 2025598 AMAQI
3rd Aug 2025709 AMAQI
3rd Aug 20257310 AMAQI
3rd Aug 20257611 AMAQI
3rd Aug 20257012 PMAQI
3rd Aug 2025701 PMAQI
3rd Aug 2025692 PMAQI
3rd Aug 2025713 PMAQI
3rd Aug 2025684 PMAQI
3rd Aug 2025735 PMAQI
3rd Aug 2025686 PMAQI
3rd Aug 2025657 PMAQI
3rd Aug 2025598 PMAQI
3rd Aug 2025609 PMAQI
3rd Aug 20255910 PMAQI
3rd Aug 20255311 PMAQI
4th Aug 20255412 AMAQI
4th Aug 2025561 AMAQI
4th Aug 2025572 AMAQI
4th Aug 2025573 AMAQI
4th Aug 2025584 AMAQI
28°C25/31°C
4th Aug 2025595 AMAQI
5 AM4th Aug 2025596 AMAQI
4th Aug 2025597 AMAQI
4th Aug 2025608 AMAQI
4th Aug 2025389 AMAQI
4th Aug 20254210 AMAQI
4th Aug 20255211 AMAQI
4th Aug 20254712 PMAQI
12 PM4th Aug 2025521 PMAQI
7 PM
12 AM
4 AM
--°C/°C
Day time
Avg. Highest Time
5 AM - 7 PM
59AQI
15 hours / Day
450 hours / Month
Avg. Lowest Time
5 AM - 7 PM
59AQI
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. 59), while the lowest AQI was between 5 AM to 7 PM (Avg. 59).
Night time
Avg. Highest Time
8 PM - 11 PM
58AQI
4 hours / Day
120 hours / Month
Avg. Lowest Time
12 AM - 4 AM
55AQI
5 hours / Day
150 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 8 PM to 11 PM (Avg. 58), while the lowest AQI was between 12 AM to 4 AM (Avg. 55).
2025 Days Vs Air Quality
Wonsi Dong, Ansan, Gyeonggi, South Korea
2025
11%
24
79%
170
10%
21
Total number of days with different AQI categories in last 216 days in 2025 (149 days remaining)
Good
24 DaysModerate
170 DaysPoor
21 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 11%
Health Risk Level:
Extreme
In 2025, 11% of 216 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
Wonsi Dong, Ansan, 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
73AQI
73AQI
2nd January 2025
54AQI
54AQI
3rd January 2025
57AQI
57AQI
4th January 2025
58AQI
58AQI
5th January 2025
67AQI
67AQI
6th January 2025
90AQI
90AQI
7th January 2025
53AQI
53AQI
8th January 2025
63AQI
63AQI
9th January 2025
42AQI
42AQI
10th January 2025
49AQI
49AQI
11th January 2025
57AQI
57AQI
12th January 2025
74AQI
74AQI
13th January 2025
88AQI
88AQI
14th January 2025
99AQI
99AQI
15th January 2025
53AQI
53AQI
16th January 2025
70AQI
70AQI
17th January 2025
69AQI
69AQI
18th January 2025
79AQI
79AQI
19th January 2025
81AQI
81AQI
20th January 2025
128AQI
128AQI
21st January 2025
132AQI
132AQI
22nd January 2025
149AQI
149AQI
23rd January 2025
136AQI
136AQI
24th January 2025
115AQI
115AQI
25th January 2025
78AQI
78AQI
26th January 2025
59AQI
59AQI
27th January 2025
66AQI
66AQI
28th January 2025
58AQI
58AQI
29th January 2025
60AQI
60AQI
30th January 2025
51AQI
51AQI
31st January 2025
71AQI
71AQI
1st February 2025
78AQI
78AQI
2nd February 2025
91AQI
91AQI
3rd February 2025
53AQI
53AQI
4th February 2025
54AQI
54AQI
5th February 2025
44AQI
44AQI
6th February 2025
53AQI
53AQI
7th February 2025
47AQI
47AQI
8th February 2025
42AQI
42AQI
9th February 2025
46AQI
46AQI
10th February 2025
54AQI
54AQI
11th February 2025
72AQI
72AQI
12th February 2025
82AQI
82AQI
13th February 2025
52AQI
52AQI
14th February 2025
88AQI
88AQI
15th February 2025
58AQI
58AQI
16th February 2025
113AQI
113AQI
17th February 2025
50AQI
50AQI
18th February 2025
63AQI
63AQI
19th February 2025
46AQI
46AQI
20th February 2025
58AQI
58AQI
21st February 2025
53AQI
53AQI
22nd February 2025
57AQI
57AQI
23rd February 2025
53AQI
53AQI
24th February 2025
55AQI
55AQI
25th February 2025
58AQI
58AQI
26th February 2025
72AQI
72AQI
27th February 2025
67AQI
67AQI
28th February 2025
97AQI
97AQI
1st March 2025
106AQI
106AQI
2nd March 2025
83AQI
83AQI
3rd March 2025
58AQI
58AQI
4th March 2025
48AQI
48AQI
5th March 2025
37AQI
37AQI
6th March 2025
87AQI
87AQI
7th March 2025
102AQI
102AQI
8th March 2025
97AQI
97AQI
9th March 2025
107AQI
107AQI
10th March 2025
128AQI
128AQI
11th March 2025
116AQI
116AQI
12th March 2025
111AQI
111AQI
13th March 2025
106AQI
106AQI
14th March 2025
87AQI
87AQI
15th March 2025
66AQI
66AQI
16th March 2025
81AQI
81AQI
17th March 2025
73AQI
73AQI
18th March 2025
81AQI
81AQI
19th March 2025
91AQI
91AQI
20th March 2025
98AQI
98AQI
21st March 2025
109AQI
109AQI
22nd March 2025
113AQI
113AQI
23rd March 2025
120AQI
120AQI
24th March 2025
121AQI
121AQI
25th March 2025
130AQI
130AQI
26th March 2025
102AQI
102AQI
27th March 2025
98AQI
98AQI
28th March 2025
65AQI
65AQI
29th March 2025
52AQI
52AQI
30th March 2025
49AQI
49AQI
31st March 2025
65AQI
65AQI
1st April 2025
82AQI
82AQI
2nd April 2025
90AQI
90AQI
3rd April 2025
93AQI
93AQI
4th April 2025
92AQI
92AQI
5th April 2025
74AQI
74AQI
6th April 2025
69AQI
69AQI
7th April 2025
81AQI
81AQI
8th April 2025
86AQI
86AQI
9th April 2025
84AQI
84AQI
10th April 2025
91AQI
91AQI
11th April 2025
103AQI
103AQI
12th April 2025
74AQI
74AQI
13th April 2025
67AQI
67AQI
14th April 2025
54AQI
54AQI
15th April 2025
62AQI
62AQI
16th April 2025
69AQI
69AQI
17th April 2025
77AQI
77AQI
18th April 2025
83AQI
83AQI
19th April 2025
52AQI
52AQI
20th April 2025
68AQI
68AQI
21st April 2025
59AQI
59AQI
22nd April 2025
49AQI
49AQI
23rd April 2025
37AQI
37AQI
24th April 2025
68AQI
68AQI
25th April 2025
66AQI
66AQI
26th April 2025
58AQI
58AQI
27th April 2025
44AQI
44AQI
28th April 2025
64AQI
64AQI
29th April 2025
80AQI
80AQI
30th April 2025
66AQI
66AQI
1st May 2025
69AQI
69AQI
2nd May 2025
54AQI
54AQI
3rd May 2025
51AQI
51AQI
4th May 2025
48AQI
48AQI
5th May 2025
56AQI
56AQI
6th May 2025
45AQI
45AQI
7th May 2025
58AQI
58AQI
8th May 2025
67AQI
67AQI
9th May 2025
56AQI
56AQI
10th May 2025
64AQI
64AQI
11th May 2025
74AQI
74AQI
12th May 2025
79AQI
79AQI
13th May 2025
84AQI
84AQI
14th May 2025
82AQI
82AQI
15th May 2025
69AQI
69AQI
16th May 2025
62AQI
62AQI
17th May 2025
53AQI
53AQI
18th May 2025
59AQI
59AQI
19th May 2025
66AQI
66AQI
20th May 2025
43AQI
43AQI
21st May 2025
54AQI
54AQI
22nd May 2025
51AQI
51AQI
23rd May 2025
73AQI
73AQI
24th May 2025
52AQI
52AQI
25th May 2025
53AQI
53AQI
26th May 2025
71AQI
71AQI
27th May 2025
86AQI
86AQI
28th May 2025
93AQI
93AQI
29th May 2025
87AQI
87AQI
30th May 2025
98AQI
98AQI
31st May 2025
97AQI
97AQI
1st June 2025
91AQI
91AQI
2nd June 2025
102AQI
102AQI
3rd June 2025
78AQI
78AQI
4th June 2025
64AQI
64AQI
5th June 2025
63AQI
63AQI
6th June 2025
62AQI
62AQI
7th June 2025
71AQI
71AQI
8th June 2025
59AQI
59AQI
9th June 2025
65AQI
65AQI
10th June 2025
52AQI
52AQI
11th June 2025
59AQI
59AQI
12th June 2025
68AQI
68AQI
13th June 2025
83AQI
83AQI
14th June 2025
72AQI
72AQI
15th June 2025
62AQI
62AQI
16th June 2025
70AQI
70AQI
17th June 2025
70AQI
70AQI
18th June 2025
71AQI
71AQI
19th June 2025
70AQI
70AQI
20th June 2025
60AQI
60AQI
21st June 2025
62AQI
62AQI
22nd June 2025
74AQI
74AQI
23rd June 2025
77AQI
77AQI
24th June 2025
68AQI
68AQI
25th June 2025
57AQI
57AQI
26th June 2025
61AQI
61AQI
27th June 2025
67AQI
67AQI
28th June 2025
67AQI
67AQI
29th June 2025
55AQI
55AQI
30th June 2025
53AQI
53AQI
1st July 2025
51AQI
51AQI
2nd July 2025
53AQI
53AQI
3rd July 2025
58AQI
58AQI
4th July 2025
56AQI
56AQI
5th July 2025
52AQI
52AQI
6th July 2025
54AQI
54AQI
7th July 2025
67AQI
67AQI
8th July 2025
76AQI
76AQI
9th July 2025
61AQI
61AQI
10th July 2025
56AQI
56AQI
11th July 2025
54AQI
54AQI
12th July 2025
53AQI
53AQI
13th July 2025
62AQI
62AQI
14th July 2025
59AQI
59AQI
15th July 2025
50AQI
50AQI
16th July 2025
57AQI
57AQI
17th July 2025
45AQI
45AQI
18th July 2025
47AQI
47AQI
19th July 2025
37AQI
37AQI
20th July 2025
44AQI
44AQI
21st July 2025
48AQI
48AQI
22nd July 2025
46AQI
46AQI
23rd July 2025
52AQI
52AQI
24th July 2025
58AQI
58AQI
25th July 2025
71AQI
71AQI
26th July 2025
62AQI
62AQI
27th July 2025
54AQI
54AQI
28th July 2025
71AQI
71AQI
29th July 2025
74AQI
74AQI
30th July 2025
78AQI
78AQI
31st July 2025
69AQI
69AQI
1st August 2025
61AQI
61AQI
2nd August 2025
63AQI
63AQI
3rd August 2025
61AQI
61AQI
77AQI
63AQI
90AQI
71AQI
66AQI
68AQI
57AQI
62AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202570AQI
2
24
5
6
21
1
3
15
13
3
26
1
3
28
29
1
7
24
3
24
170
21
Highest AQI recorded in
March90AQI
Lowest AQI recorded in
July57AQI
202465AQI
7
12
9
3
8
11
9
1
5
20
5
1
2
24
4
9
21
1
10
20
21
9
1
9
22
22
7
15
15
1
7
23
6
25
121
209
30
5
Highest AQI recorded in
January84AQI
Lowest AQI recorded in
September44AQI
202376AQI
5
17
6
3
2
11
12
3
2
16
11
2
2
21
5
2
5
23
3
5
24
1
10
19
2
13
18
11
18
1
6
20
5
9
13
5
8
15
6
2
78
215
57
12
Highest AQI recorded in
February101AQI
Lowest AQI recorded in
August54AQI
202276AQI
17
9
4
12
6
4
4
15
12
5
17
7
6
23
2
17
13
4
17
1
14
11
3
12
13
6
5
15
9
1
6
20
5
74
173
59
9
Highest AQI recorded in
January106AQI
Lowest AQI recorded in
August27AQI
202173AQI
10
15
6
7
14
5
2
4
14
9
3
1
7
20
3
11
17
1
2
9
20
1
16
15
17
12
2
16
14
8
18
5
6
13
9
2
4
15
10
2
115
187
51
9
1
2
Highest AQI recorded in
March104AQI
Lowest AQI recorded in
September51AQI
202059AQI
1
10
2
8
12
1
7
11
8
22
18
11
2
21
10
22
8
14
14
3
11
12
7
9
15
6
1
119
125
21
1
Highest AQI recorded in
December78AQI
Lowest AQI recorded in
September41AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2022(Avg.)
76AQILeast Polluted Year Recorded
2020(Avg.)
59AQIWonsi Dong's annual 2025 AQI (70) shows an average percentage change of 1.7% (worsened AQI) compared to previous years: 2020 (59), 2021 (73), 2022 (76), 2023 (76), 2024 (65).
