Gojan 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
Gojan Dong, Ansan, Gyeonggi, South Korea
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
12th Aug 2021
84AQILowest AQI recorded on
9th Aug 2023
16AQISame Day Analysis (2nd August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 61 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
Gojan 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
72AQI
Avg. Lowest Time
7AM3rd Aug
58AQI
Night time
Avg. Highest Time
9PM3rd Aug
60AQI
Avg. Lowest Time
11PM3rd Aug
52AQI
In the last 24 hours,
Gojan Dong's AQI reached its highest point of 72 at 11 AM 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
Gojan 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 2025525 AMAQI
5th Jul 2025526 AMAQI
5th Jul 2025527 AMAQI
5th Jul 2025528 AMAQI
5th Jul 2025529 AMAQI
5th Jul 20254610 AMAQI
5th Jul 20253611 AMAQI
5th Jul 20253212 PMAQI
5th Jul 2025451 PMAQI
5th Jul 2025442 PMAQI
5th Jul 2025453 PMAQI
5th Jul 2025454 PMAQI
5th Jul 2025455 PMAQI
5th Jul 2025466 PMAQI
5th Jul 2025467 PMAQI
5th Jul 2025458 PMAQI
5th Jul 2025529 PMAQI
5th Jul 20255110 PMAQI
5th Jul 20255011 PMAQI
6th Jul 20255112 AMAQI
6th Jul 2025511 AMAQI
6th Jul 2025512 AMAQI
6th Jul 2025513 AMAQI
6th Jul 2025504 AMAQI
27°C24/32°C
6th Jul 2025505 AMAQI
6th Jul 2025506 AMAQI
6th Jul 2025517 AMAQI
6th Jul 2025518 AMAQI
6th Jul 2025479 AMAQI
6th Jul 20254810 AMAQI
6th Jul 20254611 AMAQI
6th Jul 20255912 PMAQI
6th Jul 2025541 PMAQI
6th Jul 2025522 PMAQI
6th Jul 2025543 PMAQI
6th Jul 2025534 PMAQI
6th Jul 2025475 PMAQI
6th Jul 2025466 PMAQI
6th Jul 2025517 PMAQI
6th Jul 2025508 PMAQI
6th Jul 2025529 PMAQI
6th Jul 20255210 PMAQI
6th Jul 20255211 PMAQI
7th Jul 20255112 AMAQI
7th Jul 2025511 AMAQI
7th Jul 2025512 AMAQI
7th Jul 2025523 AMAQI
7th Jul 2025524 AMAQI
28°C24/32°C
7th Jul 2025525 AMAQI
7th Jul 2025526 AMAQI
7th Jul 2025527 AMAQI
7th Jul 2025528 AMAQI
7th Jul 2025549 AMAQI
7th Jul 20256810 AMAQI
7th Jul 20257811 AMAQI
7th Jul 20257912 PMAQI
7th Jul 2025781 PMAQI
7th Jul 2025802 PMAQI
7th Jul 2025813 PMAQI
7th Jul 2025824 PMAQI
7th Jul 2025845 PMAQI
7th Jul 2025836 PMAQI
7th Jul 2025707 PMAQI
7th Jul 2025588 PMAQI
7th Jul 2025549 PMAQI
7th Jul 20255410 PMAQI
7th Jul 20255411 PMAQI
8th Jul 20255412 AMAQI
8th Jul 2025531 AMAQI
8th Jul 2025522 AMAQI
8th Jul 2025523 AMAQI
8th Jul 2025524 AMAQI
29°C25/33°C
8th Jul 2025525 AMAQI
8th Jul 2025526 AMAQI
8th Jul 2025527 AMAQI
8th Jul 2025538 AMAQI
8th Jul 2025789 AMAQI
8th Jul 20258610 AMAQI
8th Jul 20258711 AMAQI
8th Jul 20258212 PMAQI
8th Jul 2025731 PMAQI
8th Jul 2025732 PMAQI
8th Jul 2025733 PMAQI
8th Jul 2025744 PMAQI
8th Jul 2025745 PMAQI
8th Jul 2025776 PMAQI
8th Jul 2025757 PMAQI
8th Jul 2025748 PMAQI
8th Jul 2025609 PMAQI
8th Jul 20255410 PMAQI
8th Jul 20255411 PMAQI
9th Jul 20255412 AMAQI
9th Jul 2025541 AMAQI
9th Jul 2025542 AMAQI
9th Jul 2025543 AMAQI
9th Jul 2025554 AMAQI
31°C26/37°C
9th Jul 2025575 AMAQI
9th Jul 2025586 AMAQI
9th Jul 2025587 AMAQI
9th Jul 2025578 AMAQI
9th Jul 2025629 AMAQI
9th Jul 20255710 AMAQI
9th Jul 20255611 AMAQI
9th Jul 20255812 PMAQI
9th Jul 2025531 PMAQI
9th Jul 2025542 PMAQI
9th Jul 2025563 PMAQI
9th Jul 2025544 PMAQI
9th Jul 2025545 PMAQI
9th Jul 2025546 PMAQI
9th Jul 2025547 PMAQI
9th Jul 2025628 PMAQI
9th Jul 2025569 PMAQI
9th Jul 20255610 PMAQI
9th Jul 20255611 PMAQI
10th Jul 20255612 AMAQI
10th Jul 2025561 AMAQI
10th Jul 2025562 AMAQI
10th Jul 2025553 AMAQI
10th Jul 2025554 AMAQI
31°C26/37°C
10th Jul 2025565 AMAQI
10th Jul 2025566 AMAQI
10th Jul 2025577 AMAQI
10th Jul 2025578 AMAQI
10th Jul 2025509 AMAQI
10th Jul 20255210 AMAQI
10th Jul 20254311 AMAQI
10th Jul 20253712 PMAQI
10th Jul 2025481 PMAQI
10th Jul 2025522 PMAQI
10th Jul 2025523 PMAQI
10th Jul 2025524 PMAQI
10th Jul 2025525 PMAQI
10th Jul 2025536 PMAQI
10th Jul 2025527 PMAQI
10th Jul 2025558 PMAQI
10th Jul 2025559 PMAQI
10th Jul 20255710 PMAQI
10th Jul 20255611 PMAQI
11th Jul 20255612 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 2025567 AMAQI
11th Jul 2025568 AMAQI
11th Jul 2025469 AMAQI
11th Jul 20254210 AMAQI
11th Jul 20253211 AMAQI
11th Jul 20253612 PMAQI
11th Jul 2025491 PMAQI
11th Jul 2025442 PMAQI
11th Jul 2025443 PMAQI
11th Jul 2025494 PMAQI
11th Jul 2025475 PMAQI
11th Jul 2025466 PMAQI
11th Jul 2025487 PMAQI
11th Jul 2025508 PMAQI
11th Jul 2025549 PMAQI
11th Jul 20255410 PMAQI
11th Jul 20255411 PMAQI
12th Jul 20255512 AMAQI
12th Jul 2025551 AMAQI
12th Jul 2025562 AMAQI
12th Jul 2025563 AMAQI
12th Jul 2025574 AMAQI
30°C25/35°C
12th Jul 2025555 AMAQI
12th Jul 2025556 AMAQI
12th Jul 2025557 AMAQI
12th Jul 2025568 AMAQI
12th Jul 2025369 AMAQI
12th Jul 20253010 AMAQI
12th Jul 20253211 AMAQI
12th Jul 20253012 PMAQI
12th Jul 2025471 PMAQI
12th Jul 2025502 PMAQI
12th Jul 2025503 PMAQI
12th Jul 2025504 PMAQI
12th Jul 2025445 PMAQI
12th Jul 2025506 PMAQI
12th Jul 2025547 PMAQI
12th Jul 2025588 PMAQI
12th Jul 2025559 PMAQI
12th Jul 20255510 PMAQI
12th Jul 20255611 PMAQI
13th Jul 20255612 AMAQI
13th Jul 2025551 AMAQI
13th Jul 2025552 AMAQI
13th Jul 2025553 AMAQI
13th Jul 2025564 AMAQI
29°C24/34°C
13th Jul 2025555 AMAQI
13th Jul 2025556 AMAQI
13th Jul 2025557 AMAQI
13th Jul 2025558 AMAQI
13th Jul 2025589 AMAQI
13th Jul 20256410 AMAQI
13th Jul 20256711 AMAQI
13th Jul 20256412 PMAQI
13th Jul 2025621 PMAQI
13th Jul 2025632 PMAQI
13th Jul 2025643 PMAQI
13th Jul 2025674 PMAQI
13th Jul 2025665 PMAQI
13th Jul 2025706 PMAQI
13th Jul 2025687 PMAQI
13th Jul 2025638 PMAQI
13th Jul 2025569 PMAQI
13th Jul 20255610 PMAQI
13th Jul 20255611 PMAQI
14th Jul 20255512 AMAQI
14th Jul 2025551 AMAQI
14th Jul 2025562 AMAQI
14th Jul 2025553 AMAQI
14th Jul 2025554 AMAQI
26°C23/30°C
14th Jul 2025565 AMAQI
14th Jul 2025556 AMAQI
14th Jul 2025567 AMAQI
14th Jul 2025568 AMAQI
14th Jul 2025659 AMAQI
14th Jul 20256810 AMAQI
14th Jul 20257111 AMAQI
14th Jul 20258312 PMAQI
14th Jul 2025651 PMAQI
14th Jul 2025582 PMAQI
14th Jul 2025563 PMAQI
14th Jul 2025534 PMAQI
14th Jul 2025505 PMAQI
14th Jul 2025486 PMAQI
14th Jul 2025387 PMAQI
14th Jul 2025408 PMAQI
14th Jul 2025559 PMAQI
14th Jul 20255510 PMAQI
14th Jul 20255511 PMAQI
15th Jul 20255512 AMAQI
15th Jul 2025561 AMAQI
15th Jul 2025562 AMAQI
15th Jul 2025563 AMAQI
15th Jul 2025564 AMAQI
23°C19/29°C
15th Jul 2025575 AMAQI
15th Jul 2025566 AMAQI
15th Jul 2025567 AMAQI
15th Jul 2025568 AMAQI
15th Jul 2025259 AMAQI
15th Jul 20251210 AMAQI
15th Jul 20251511 AMAQI
15th Jul 20251812 PMAQI
15th Jul 2025421 PMAQI
15th Jul 2025402 PMAQI
15th Jul 2025463 PMAQI
15th Jul 2025524 PMAQI
15th Jul 2025495 PMAQI
15th Jul 2025396 PMAQI
15th Jul 2025417 PMAQI
15th Jul 2025408 PMAQI
15th Jul 2025549 PMAQI
15th Jul 20255410 PMAQI
15th Jul 20255411 PMAQI
16th Jul 20255412 AMAQI
16th Jul 2025561 AMAQI
16th Jul 2025562 AMAQI
16th Jul 2025553 AMAQI
16th Jul 2025554 AMAQI
22°C20/24°C
16th Jul 2025555 AMAQI
16th Jul 2025556 AMAQI
16th Jul 2025557 AMAQI
16th Jul 2025558 AMAQI
16th Jul 2025579 AMAQI
16th Jul 20255610 AMAQI
16th Jul 20255611 AMAQI
16th Jul 20255512 PMAQI
16th Jul 2025521 PMAQI
16th Jul 2025522 PMAQI
16th Jul 2025513 PMAQI
16th Jul 2025524 PMAQI
16th Jul 2025525 PMAQI
16th Jul 2025506 PMAQI
16th Jul 2025417 PMAQI
16th Jul 2025428 PMAQI
16th Jul 2025549 PMAQI
16th Jul 20255410 PMAQI
16th Jul 20255411 PMAQI
17th Jul 20255512 AMAQI
17th Jul 2025551 AMAQI
17th Jul 2025552 AMAQI
17th Jul 2025553 AMAQI
17th Jul 2025554 AMAQI
22°C21/25°C
17th Jul 2025555 AMAQI
17th Jul 2025556 AMAQI
17th Jul 2025557 AMAQI
17th Jul 2025558 AMAQI
17th Jul 2025269 AMAQI
17th Jul 20251610 AMAQI
17th Jul 20251511 AMAQI
17th Jul 20251512 PMAQI
17th Jul 2025341 PMAQI
17th Jul 2025322 PMAQI
17th Jul 2025323 PMAQI
17th Jul 2025334 PMAQI
17th Jul 2025365 PMAQI
17th Jul 2025366 PMAQI
17th Jul 2025337 PMAQI
17th Jul 2025378 PMAQI
17th Jul 2025539 PMAQI
17th Jul 20255310 PMAQI
17th Jul 20255311 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 2025259 AMAQI
18th Jul 20252210 AMAQI
18th Jul 20251811 AMAQI
18th Jul 20252212 PMAQI
18th Jul 2025331 PMAQI
18th Jul 2025352 PMAQI
18th Jul 2025353 PMAQI
18th Jul 2025384 PMAQI
18th Jul 2025345 PMAQI
18th Jul 2025396 PMAQI
18th Jul 2025477 PMAQI
18th Jul 2025468 PMAQI
18th Jul 2025529 PMAQI
18th Jul 20255210 PMAQI
18th Jul 20255211 PMAQI
19th Jul 20255212 AMAQI
19th Jul 2025531 AMAQI
19th Jul 2025532 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 20251410 AMAQI
19th Jul 20251611 AMAQI
19th Jul 20251512 PMAQI
19th Jul 2025211 PMAQI
19th Jul 2025192 PMAQI
19th Jul 2025203 PMAQI
19th Jul 2025214 PMAQI
19th Jul 2025225 PMAQI
19th Jul 2025266 PMAQI
19th Jul 2025257 PMAQI
19th Jul 2025308 PMAQI
19th Jul 2025429 PMAQI
19th Jul 20254410 PMAQI
19th Jul 20254311 PMAQI
20th Jul 20254412 AMAQI
20th Jul 2025491 AMAQI
20th Jul 2025522 AMAQI
20th Jul 2025523 AMAQI
20th Jul 2025514 AMAQI
25°C22/28°C
20th Jul 2025515 AMAQI
20th Jul 2025516 AMAQI
20th Jul 2025507 AMAQI
20th Jul 2025508 AMAQI
20th Jul 2025359 AMAQI
20th Jul 20252210 AMAQI
20th Jul 20252011 AMAQI
20th Jul 20252812 PMAQI
20th Jul 2025291 PMAQI
20th Jul 2025312 PMAQI
20th Jul 2025303 PMAQI
20th Jul 2025284 PMAQI
20th Jul 2025245 PMAQI
20th Jul 2025256 PMAQI
20th Jul 2025337 PMAQI
20th Jul 2025368 PMAQI
20th Jul 2025449 PMAQI
20th Jul 20254410 PMAQI
20th Jul 20254511 PMAQI
21st Jul 20254712 AMAQI
21st Jul 2025501 AMAQI
21st Jul 2025492 AMAQI
21st Jul 2025483 AMAQI
21st Jul 2025474 AMAQI
27°C23/32°C
21st Jul 2025465 AMAQI
21st Jul 2025476 AMAQI
21st Jul 2025457 AMAQI
21st Jul 2025458 AMAQI
21st Jul 2025509 AMAQI
21st Jul 20254710 AMAQI
21st Jul 20253611 AMAQI
21st Jul 20253312 PMAQI
21st Jul 2025331 PMAQI
21st Jul 2025322 PMAQI
21st Jul 2025403 PMAQI
21st Jul 2025404 PMAQI
21st Jul 2025335 PMAQI
21st Jul 2025306 PMAQI
21st Jul 2025287 PMAQI
21st Jul 2025288 PMAQI
21st Jul 2025409 PMAQI
21st Jul 20253810 PMAQI
21st Jul 20253811 PMAQI
22nd Jul 20253912 AMAQI
22nd Jul 2025461 AMAQI
22nd Jul 2025472 AMAQI
22nd Jul 2025483 AMAQI
22nd Jul 2025464 AMAQI
28°C25/31°C
22nd Jul 2025465 AMAQI
22nd Jul 2025476 AMAQI
22nd Jul 2025467 AMAQI
22nd Jul 2025458 AMAQI
22nd Jul 2025249 AMAQI
22nd Jul 20253510 AMAQI
22nd Jul 20254311 AMAQI
22nd Jul 20254112 PMAQI
22nd Jul 2025301 PMAQI
22nd Jul 2025322 PMAQI
22nd Jul 2025343 PMAQI
22nd Jul 2025344 PMAQI
22nd Jul 2025325 PMAQI
22nd Jul 2025346 PMAQI
22nd Jul 2025287 PMAQI
22nd Jul 2025318 PMAQI
22nd Jul 2025409 PMAQI
22nd Jul 20253910 PMAQI
22nd Jul 20253911 PMAQI
23rd Jul 20254212 AMAQI
23rd Jul 2025421 AMAQI
23rd Jul 2025412 AMAQI
23rd Jul 2025443 AMAQI
23rd Jul 2025444 AMAQI
28°C25/32°C
23rd Jul 2025425 AMAQI
23rd Jul 2025426 AMAQI
23rd Jul 2025427 AMAQI
23rd Jul 2025428 AMAQI
23rd Jul 2025389 AMAQI
23rd Jul 20253010 AMAQI
23rd Jul 20253211 AMAQI
23rd Jul 20253212 PMAQI
23rd Jul 2025421 PMAQI
23rd Jul 2025422 PMAQI
23rd Jul 2025433 PMAQI
23rd Jul 2025444 PMAQI
23rd Jul 2025435 PMAQI
23rd Jul 2025466 PMAQI
23rd Jul 2025447 PMAQI
23rd Jul 2025428 PMAQI
23rd Jul 2025429 PMAQI
23rd Jul 20254210 PMAQI
23rd Jul 20254211 PMAQI
24th Jul 20254112 AMAQI
24th Jul 2025441 AMAQI
24th Jul 2025432 AMAQI
24th Jul 2025433 AMAQI
24th Jul 2025444 AMAQI
28°C25/32°C
24th Jul 2025445 AMAQI
24th Jul 2025436 AMAQI
24th Jul 2025437 AMAQI
24th Jul 2025428 AMAQI
24th Jul 2025299 AMAQI
24th Jul 20253610 AMAQI
24th Jul 20254111 AMAQI
24th Jul 20254612 PMAQI
24th Jul 2025381 PMAQI
24th Jul 2025462 PMAQI
24th Jul 2025583 PMAQI
24th Jul 2025684 PMAQI
24th Jul 2025695 PMAQI
24th Jul 2025606 PMAQI
24th Jul 2025597 PMAQI
24th Jul 2025538 PMAQI
24th Jul 2025509 PMAQI
24th Jul 20255210 PMAQI
24th Jul 20255211 PMAQI
25th Jul 20255312 AMAQI
25th Jul 2025521 AMAQI
25th Jul 2025462 AMAQI
25th Jul 2025443 AMAQI
25th Jul 2025444 AMAQI
28°C25/32°C
25th Jul 2025445 AMAQI
25th Jul 2025446 AMAQI
25th Jul 2025447 AMAQI
25th Jul 2025448 AMAQI
25th Jul 2025609 AMAQI
25th Jul 20256910 AMAQI
25th Jul 20257011 AMAQI
25th Jul 20257212 PMAQI
25th Jul 2025681 PMAQI
25th Jul 2025622 PMAQI
25th Jul 2025683 PMAQI
25th Jul 2025714 PMAQI
25th Jul 2025785 PMAQI
25th Jul 2025766 PMAQI
25th Jul 2025747 PMAQI
25th Jul 2025648 PMAQI
25th Jul 2025569 PMAQI
25th Jul 20255810 PMAQI
25th Jul 20255611 PMAQI
26th Jul 20255612 AMAQI
26th Jul 2025501 AMAQI
26th Jul 2025502 AMAQI
26th Jul 2025493 AMAQI
26th Jul 2025514 AMAQI
30°C26/35°C
26th Jul 2025545 AMAQI
26th Jul 2025546 AMAQI
26th Jul 2025537 AMAQI
26th Jul 2025538 AMAQI
26th Jul 2025549 AMAQI
26th Jul 20255210 AMAQI
26th Jul 20252211 AMAQI
26th Jul 20254012 PMAQI
26th Jul 2025501 PMAQI
26th Jul 2025442 PMAQI
26th Jul 2025463 PMAQI
26th Jul 2025524 PMAQI
26th Jul 2025525 PMAQI
26th Jul 2025566 PMAQI
26th Jul 2025627 PMAQI
26th Jul 2025708 PMAQI
26th Jul 2025619 PMAQI
26th Jul 20256110 PMAQI
26th Jul 20256011 PMAQI
27th Jul 20256112 AMAQI
27th Jul 2025541 AMAQI
27th Jul 2025542 AMAQI
27th Jul 2025543 AMAQI
27th Jul 2025534 AMAQI
31°C28/35°C
27th Jul 2025525 AMAQI
27th Jul 2025526 AMAQI
27th Jul 2025527 AMAQI
27th Jul 2025528 AMAQI
27th Jul 2025409 AMAQI
27th Jul 20252610 AMAQI
27th Jul 20252411 AMAQI
27th Jul 20252212 PMAQI
27th Jul 2025361 PMAQI
27th Jul 2025322 PMAQI
27th Jul 2025363 PMAQI
27th Jul 2025354 PMAQI
27th Jul 2025455 PMAQI
27th Jul 2025506 PMAQI
27th Jul 2025567 PMAQI
27th Jul 2025648 PMAQI
27th Jul 2025599 PMAQI
27th Jul 20256210 PMAQI
27th Jul 20256211 PMAQI
28th Jul 20256212 AMAQI
28th Jul 2025571 AMAQI
28th Jul 2025572 AMAQI
28th Jul 2025573 AMAQI
28th Jul 2025564 AMAQI
31°C28/35°C
28th Jul 2025535 AMAQI
28th Jul 2025536 AMAQI
28th Jul 2025537 AMAQI
28th Jul 2025528 AMAQI
28th Jul 2025669 AMAQI
28th Jul 20257210 AMAQI
28th Jul 20257911 AMAQI
28th Jul 20258012 PMAQI
28th Jul 2025661 PMAQI
28th Jul 2025582 PMAQI
28th Jul 2025543 PMAQI
28th Jul 2025594 PMAQI
28th Jul 2025675 PMAQI
28th Jul 2025756 PMAQI
28th Jul 2025757 PMAQI
28th Jul 2025698 PMAQI
28th Jul 2025609 PMAQI
28th Jul 20255810 PMAQI
28th Jul 20255911 PMAQI
29th Jul 20256012 AMAQI
29th Jul 2025581 AMAQI
29th Jul 2025562 AMAQI
29th Jul 2025573 AMAQI
29th Jul 2025584 AMAQI
30°C28/35°C
29th Jul 2025595 AMAQI
29th Jul 2025606 AMAQI
29th Jul 2025597 AMAQI
29th Jul 2025608 AMAQI
29th Jul 2025669 AMAQI
29th Jul 20257010 AMAQI
29th Jul 20257411 AMAQI
29th Jul 20257712 PMAQI
29th Jul 2025781 PMAQI
29th Jul 2025762 PMAQI
29th Jul 2025803 PMAQI
29th Jul 2025804 PMAQI
29th Jul 2025795 PMAQI
29th Jul 2025706 PMAQI
29th Jul 2025717 PMAQI
29th Jul 2025668 PMAQI
29th Jul 2025619 PMAQI
29th Jul 20256110 PMAQI
29th Jul 20256211 PMAQI
30th Jul 20256212 AMAQI
30th Jul 2025581 AMAQI
30th Jul 2025582 AMAQI
30th Jul 2025593 AMAQI
30th Jul 2025594 AMAQI
31°C27/36°C
30th Jul 2025615 AMAQI
30th Jul 2025616 AMAQI
30th Jul 2025607 AMAQI
30th Jul 2025608 AMAQI
30th Jul 2025719 AMAQI
30th Jul 20257810 AMAQI
30th Jul 20258211 AMAQI
30th Jul 20258212 PMAQI
30th Jul 2025751 PMAQI
30th Jul 2025662 PMAQI
30th Jul 2025673 PMAQI
30th Jul 2025664 PMAQI
30th Jul 2025685 PMAQI
30th Jul 2025846 PMAQI
30th Jul 2025837 PMAQI
30th Jul 2025768 PMAQI
30th Jul 2025639 PMAQI
30th Jul 20256410 PMAQI
30th Jul 20256411 PMAQI
31st Jul 20256412 AMAQI
31st Jul 2025601 AMAQI
31st Jul 2025602 AMAQI
31st Jul 2025603 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 20255711 AMAQI
31st Jul 20255812 PMAQI
31st Jul 2025641 PMAQI
31st Jul 2025732 PMAQI
31st Jul 2025733 PMAQI
31st Jul 2025664 PMAQI
31st Jul 2025615 PMAQI
31st Jul 2025666 PMAQI
31st Jul 2025777 PMAQI
31st Jul 2025698 PMAQI
31st Jul 2025549 PMAQI
31st Jul 20255510 PMAQI
31st Jul 20255411 PMAQI
1st Aug 20255612 AMAQI
1st Aug 2025561 AMAQI
1st Aug 2025562 AMAQI
1st Aug 2025553 AMAQI
1st Aug 2025584 AMAQI
30°C27/34°C
1st Aug 2025555 AMAQI
1st Aug 2025566 AMAQI
1st Aug 2025567 AMAQI
1st Aug 2025558 AMAQI
1st Aug 2025629 AMAQI
1st Aug 20256610 AMAQI
1st Aug 20256011 AMAQI
1st Aug 20255812 PMAQI
1st Aug 2025551 PMAQI
1st Aug 2025622 PMAQI
1st Aug 2025703 PMAQI
1st Aug 2025634 PMAQI
1st Aug 2025695 PMAQI
1st Aug 2025586 PMAQI
1st Aug 2025607 PMAQI
1st Aug 2025588 PMAQI
1st Aug 2025599 PMAQI
1st Aug 20255910 PMAQI
1st Aug 20256011 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 2025556 AMAQI
2nd Aug 2025567 AMAQI
2nd Aug 2025568 AMAQI
2nd Aug 2025749 AMAQI
2nd Aug 20257310 AMAQI
2nd Aug 20257311 AMAQI
2nd Aug 20258012 PMAQI
2nd Aug 2025771 PMAQI
2nd Aug 2025592 PMAQI
2nd Aug 2025543 PMAQI
2nd Aug 2025604 PMAQI
2nd Aug 2025595 PMAQI
2nd Aug 2025646 PMAQI
2nd Aug 2025607 PMAQI
2nd Aug 2025568 PMAQI
2nd Aug 2025599 PMAQI
2nd Aug 20256010 PMAQI
2nd Aug 20256011 PMAQI
3rd Aug 20255612 AMAQI
3rd Aug 2025541 AMAQI
3rd Aug 2025552 AMAQI
3rd Aug 2025553 AMAQI
3rd Aug 2025574 AMAQI
30°C27/34°C
3rd Aug 2025585 AMAQI
3rd Aug 2025586 AMAQI
3rd Aug 2025587 AMAQI
3rd Aug 2025598 AMAQI
3rd Aug 2025689 AMAQI
3rd Aug 20257110 AMAQI
3rd Aug 20257211 AMAQI
3rd Aug 20257012 PMAQI
3rd Aug 2025701 PMAQI
3rd Aug 2025682 PMAQI
3rd Aug 2025723 PMAQI
3rd Aug 2025664 PMAQI
3rd Aug 2025715 PMAQI
3rd Aug 2025726 PMAQI
3rd Aug 2025647 PMAQI
3rd Aug 2025598 PMAQI
3rd Aug 2025609 PMAQI
3rd Aug 20255810 PMAQI
3rd Aug 20255211 PMAQI
4th Aug 20255512 AMAQI
4th Aug 2025561 AMAQI
4th Aug 2025562 AMAQI
4th Aug 2025573 AMAQI
4th Aug 2025584 AMAQI
28°C25/31°C
4th Aug 2025585 AMAQI
5 AM4th Aug 2025596 AMAQI
4th Aug 2025607 AMAQI
4th Aug 2025608 AMAQI
4th Aug 2025489 AMAQI
4th Aug 20254310 AMAQI
4th Aug 20255111 AMAQI
12 PM
7 PM
12 AM
4 AM
--°C/°C
Day time
Avg. Highest Time
5 AM - 8 AM
53AQI
4 hours / Day
120 hours / Month
Avg. Lowest Time
9 AM - 7 PM
52AQI
11 hours / Day
330 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 8 AM (Avg. 53), while the lowest AQI was between 9 AM to 7 PM (Avg. 52).
Night time
Avg. Highest Time
12 AM - 11 PM
53AQI
9 hours / Day
270 hours / Month
Avg. Lowest Time
12 AM - 11 PM
53AQI
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. 53), while the lowest AQI was between 12 AM to 11 PM (Avg. 53).
2025 Days Vs Air Quality
Gojan Dong, Ansan, Gyeonggi, South Korea
2025
27%
57
67%
143
7%
14
Total number of days with different AQI categories in last 216 days in 2025 (149 days remaining)
Good
57 DaysModerate
143 DaysPoor
14 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 27%
Health Risk Level:
Very high
In 2025, 27% 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
Gojan 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
69AQI
69AQI
2nd January 2025
49AQI
49AQI
3rd January 2025
55AQI
55AQI
4th January 2025
55AQI
55AQI
5th January 2025
61AQI
61AQI
6th January 2025
90AQI
90AQI
7th January 2025
48AQI
48AQI
8th January 2025
63AQI
63AQI
9th January 2025
41AQI
41AQI
10th January 2025
45AQI
45AQI
11th January 2025
53AQI
53AQI
12th January 2025
73AQI
73AQI
13th January 2025
85AQI
85AQI
14th January 2025
96AQI
96AQI
15th January 2025
50AQI
50AQI
16th January 2025
74AQI
74AQI
17th January 2025
76AQI
76AQI
18th January 2025
76AQI
76AQI
19th January 2025
80AQI
80AQI
20th January 2025
130AQI
130AQI
21st January 2025
133AQI
133AQI
22nd January 2025
149AQI
149AQI
23rd January 2025
108AQI
108AQI
24th January 2025
107AQI
107AQI
25th January 2025
67AQI
67AQI
26th January 2025
53AQI
53AQI
27th January 2025
63AQI
63AQI
28th January 2025
55AQI
55AQI
29th January 2025
55AQI
55AQI
30th January 2025
47AQI
47AQI
31st January 2025
64AQI
64AQI
1st February 2025
76AQI
76AQI
2nd February 2025
85AQI
85AQI
3rd February 2025
50AQI
50AQI
4th February 2025
48AQI
48AQI
5th February 2025
40AQI
40AQI
6th February 2025
48AQI
48AQI
7th February 2025
44AQI
44AQI
8th February 2025
36AQI
36AQI
9th February 2025
41AQI
41AQI
10th February 2025
47AQI
47AQI
11th February 2025
67AQI
67AQI
12th February 2025
78AQI
78AQI
13th February 2025
49AQI
49AQI
14th February 2025
90AQI
90AQI
15th February 2025
57AQI
57AQI
16th February 2025
111AQI
111AQI
17th February 2025
50AQI
50AQI
18th February 2025
62AQI
62AQI
19th February 2025
44AQI
44AQI
20th February 2025
55AQI
55AQI
21st February 2025
52AQI
52AQI
22nd February 2025
56AQI
56AQI
23rd February 2025
50AQI
50AQI
24th February 2025
56AQI
56AQI
25th February 2025
52AQI
52AQI
26th February 2025
71AQI
71AQI
27th February 2025
58AQI
58AQI
28th February 2025
86AQI
86AQI
1st March 2025
97AQI
97AQI
2nd March 2025
79AQI
79AQI
3rd March 2025
55AQI
55AQI
4th March 2025
47AQI
47AQI
5th March 2025
36AQI
36AQI
6th March 2025
75AQI
75AQI
7th March 2025
90AQI
90AQI
8th March 2025
87AQI
87AQI
9th March 2025
92AQI
92AQI
10th March 2025
119AQI
119AQI
11th March 2025
106AQI
106AQI
12th March 2025
105AQI
105AQI
13th March 2025
99AQI
99AQI
14th March 2025
76AQI
76AQI
15th March 2025
56AQI
56AQI
16th March 2025
70AQI
70AQI
17th March 2025
64AQI
64AQI
18th March 2025
70AQI
70AQI
19th March 2025
80AQI
80AQI
20th March 2025
89AQI
89AQI
21st March 2025
101AQI
101AQI
22nd March 2025
106AQI
106AQI
23rd March 2025
108AQI
108AQI
24th March 2025
111AQI
111AQI
25th March 2025
126AQI
126AQI
26th March 2025
89AQI
89AQI
27th March 2025
89AQI
89AQI
28th March 2025
58AQI
58AQI
29th March 2025
46AQI
46AQI
30th March 2025
42AQI
42AQI
31st March 2025
57AQI
57AQI
1st April 2025
75AQI
75AQI
2nd April 2025
83AQI
83AQI
3rd April 2025
83AQI
83AQI
4th April 2025
81AQI
81AQI
5th April 2025
67AQI
67AQI
6th April 2025
62AQI
62AQI
7th April 2025
68AQI
68AQI
8th April 2025
77AQI
77AQI
9th April 2025
69AQI
69AQI
10th April 2025
82AQI
82AQI
11th April 2025
89AQI
89AQI
12th April 2025
65AQI
65AQI
13th April 2025
66AQI
66AQI
14th April 2025
44AQI
44AQI
15th April 2025
54AQI
54AQI
16th April 2025
58AQI
58AQI
17th April 2025
65AQI
65AQI
18th April 2025
74AQI
74AQI
19th April 2025
44AQI
44AQI
20th April 2025
61AQI
61AQI
21st April 2025
48AQI
48AQI
22nd April 2025
40AQI
40AQI
23rd April 2025
28AQI
28AQI
24th April 2025
60AQI
60AQI
25th April 2025
59AQI
59AQI
26th April 2025
50AQI
50AQI
27th April 2025
40AQI
40AQI
28th April 2025
56AQI
56AQI
29th April 2025
67AQI
67AQI
30th April 2025
55AQI
55AQI
1st May 2025
55AQI
55AQI
2nd May 2025
48AQI
48AQI
3rd May 2025
44AQI
44AQI
4th May 2025
43AQI
43AQI
5th May 2025
50AQI
50AQI
6th May 2025
38AQI
38AQI
7th May 2025
54AQI
54AQI
8th May 2025
58AQI
58AQI
9th May 2025
49AQI
49AQI
10th May 2025
57AQI
57AQI
11th May 2025
65AQI
65AQI
12th May 2025
67AQI
67AQI
13th May 2025
71AQI
71AQI
14th May 2025
67AQI
67AQI
15th May 2025
58AQI
58AQI
16th May 2025
46AQI
46AQI
17th May 2025
41AQI
41AQI
18th May 2025
53AQI
53AQI
19th May 2025
57AQI
57AQI
20th May 2025
38AQI
38AQI
21st May 2025
46AQI
46AQI
22nd May 2025
51AQI
51AQI
23rd May 2025
61AQI
61AQI
24th May 2025
47AQI
47AQI
25th May 2025
48AQI
48AQI
26th May 2025
64AQI
64AQI
27th May 2025
73AQI
73AQI
28th May 2025
77AQI
77AQI
29th May 2025
78AQI
78AQI
30th May 2025
84AQI
84AQI
31st May 2025
84AQI
84AQI
1st June 2025
82AQI
82AQI
2nd June 2025
89AQI
89AQI
3rd June 2025
72AQI
72AQI
4th June 2025
57AQI
57AQI
5th June 2025
55AQI
55AQI
6th June 2025
57AQI
57AQI
7th June 2025
64AQI
64AQI
8th June 2025
52AQI
52AQI
9th June 2025
59AQI
59AQI
10th June 2025
45AQI
45AQI
11th June 2025
53AQI
53AQI
12th June 2025
61AQI
61AQI
13th June 2025
71AQI
71AQI
14th June 2025
64AQI
64AQI
15th June 2025
55AQI
55AQI
16th June 2025
61AQI
61AQI
17th June 2025
63AQI
63AQI
18th June 2025
64AQI
64AQI
19th June 2025
63AQI
63AQI
20th June 2025
54AQI
54AQI
21st June 2025
58AQI
58AQI
22nd June 2025
63AQI
63AQI
23rd June 2025
68AQI
68AQI
24th June 2025
61AQI
61AQI
25th June 2025
53AQI
53AQI
26th June 2025
57AQI
57AQI
27th June 2025
62AQI
62AQI
28th June 2025
62AQI
62AQI
29th June 2025
53AQI
53AQI
30th June 2025
50AQI
50AQI
1st July 2025
47AQI
47AQI
2nd July 2025
48AQI
48AQI
3rd July 2025
49AQI
49AQI
4th July 2025
49AQI
49AQI
5th July 2025
48AQI
48AQI
6th July 2025
51AQI
51AQI
7th July 2025
61AQI
61AQI
8th July 2025
63AQI
63AQI
9th July 2025
55AQI
55AQI
10th July 2025
54AQI
54AQI
11th July 2025
52AQI
52AQI
12th July 2025
52AQI
52AQI
13th July 2025
59AQI
59AQI
14th July 2025
56AQI
56AQI
15th July 2025
47AQI
47AQI
16th July 2025
53AQI
53AQI
17th July 2025
45AQI
45AQI
18th July 2025
46AQI
46AQI
19th July 2025
39AQI
39AQI
20th July 2025
40AQI
40AQI
21st July 2025
41AQI
41AQI
22nd July 2025
39AQI
39AQI
23rd July 2025
42AQI
42AQI
24th July 2025
47AQI
47AQI
25th July 2025
58AQI
58AQI
26th July 2025
54AQI
54AQI
27th July 2025
51AQI
51AQI
28th July 2025
62AQI
62AQI
29th July 2025
65AQI
65AQI
30th July 2025
67AQI
67AQI
31st July 2025
62AQI
62AQI
1st August 2025
59AQI
59AQI
2nd August 2025
61AQI
61AQI
73AQI
59AQI
81AQI
62AQI
57AQI
61AQI
52AQI
60AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202564AQI
6
20
5
12
15
1
4
19
8
7
23
12
19
2
28
14
17
2
57
143
14
Highest AQI recorded in
March81AQI
Lowest AQI recorded in
July52AQI
202457AQI
11
13
7
9
12
7
1
6
21
3
1
5
23
2
15
16
9
21
26
5
16
15
25
5
19
12
14
16
10
21
165
180
19
2
Highest AQI recorded in
January78AQI
Lowest AQI recorded in
July35AQI
202360AQI
13
13
4
1
4
18
5
1
5
16
10
7
18
3
2
8
22
1
17
13
19
12
22
9
23
7
15
16
15
12
2
11
16
4
159
172
29
4
Highest AQI recorded in
March86AQI
Lowest AQI recorded in
September42AQI
202262AQI
4
17
7
2
4
11
3
3
6
18
7
8
17
5
16
15
21
9
15
9
3
22
5
1
19
10
2
10
15
4
1
12
17
2
140
143
31
6
Highest AQI recorded in
February87AQI
Lowest AQI recorded in
August28AQI
202163AQI
10
16
4
8
11
9
4
18
7
1
1
9
18
3
13
16
2
10
19
1
17
14
21
10
27
3
19
12
8
15
5
1
10
12
9
156
164
38
2
1
2
Highest AQI recorded in
March88AQI
Lowest AQI recorded in
September33AQI
202057AQI
3
9
1
4
15
2
6
12
7
22
1
19
12
20
11
22
7
14
16
1
12
13
5
6
20
5
113
137
15
Highest AQI recorded in
December74AQI
Lowest AQI recorded in
September39AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2025(Avg.)
64AQILeast Polluted Year Recorded
2024(Avg.)
57AQIGojan Dong's annual 2025 AQI (64) shows an average percentage change of 7.06% (worsened AQI) compared to previous years: 2020 (57), 2021 (63), 2022 (62), 2023 (60), 2024 (57).
