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+
November Air Quality Analysis
Ansan, Gyeonggi, South Korea
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
21st Nov 2021
174AQILowest AQI recorded on
9th Nov 2021
23AQISame Day Analysis (24th November ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 125 of Poor air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 25th Nov - 26th Nov 2025
Ansan, Gyeonggi, South Korea
AQI
Day
Night
.
7 AM25th Nov 2025
5 PM
6 AM26th Nov 2025
Day time
Avg. Highest Time
12AMNaNth undefined
AQI
Avg. Lowest Time
12AMNaNth undefined
AQI
Night time
Avg. Highest Time
8AM25th Nov
166AQI
Avg. Lowest Time
12PM25th Nov
102AQI
In the last 24 hours,
Ansan's AQI reached its highest point of 166 at 8 AM during the Night, while the lowest point, 102, was recorded at 12 PM during the Night between 25th Nov and 26th Nov 2025.
Day & Night AQI Trend : Oct - Nov 2025
Ansan, Gyeonggi, South Korea
OctNov
27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th
Day
Night
27th Oct 2025497 AMAQI
27th Oct 2025528 AMAQI
27th Oct 2025579 AMAQI
27th Oct 20255810 AMAQI
27th Oct 20255711 AMAQI
27th Oct 20255212 PMAQI
27th Oct 2025421 PMAQI
27th Oct 2025382 PMAQI
27th Oct 2025293 PMAQI
27th Oct 2025284 PMAQI
27th Oct 2025265 PMAQI
27th Oct 2025236 PMAQI
27th Oct 2025237 PMAQI
27th Oct 2025228 PMAQI
27th Oct 2025229 PMAQI
27th Oct 20252310 PMAQI
27th Oct 20252311 PMAQI
28th Oct 20252612 AMAQI
28th Oct 2025261 AMAQI
28th Oct 2025342 AMAQI
28th Oct 2025343 AMAQI
28th Oct 2025344 AMAQI
28th Oct 2025325 AMAQI
28th Oct 2025336 AMAQI
8°C6/11°C
28th Oct 2025347 AMAQI
28th Oct 2025398 AMAQI
28th Oct 2025449 AMAQI
28th Oct 20254610 AMAQI
28th Oct 20254611 AMAQI
28th Oct 20254512 PMAQI
28th Oct 2025451 PMAQI
28th Oct 2025482 PMAQI
28th Oct 2025513 PMAQI
28th Oct 2025444 PMAQI
28th Oct 2025365 PMAQI
28th Oct 2025336 PMAQI
28th Oct 2025317 PMAQI
28th Oct 2025338 PMAQI
28th Oct 2025399 PMAQI
28th Oct 20255210 PMAQI
28th Oct 20256111 PMAQI
29th Oct 20255912 AMAQI
29th Oct 2025561 AMAQI
29th Oct 2025562 AMAQI
29th Oct 2025603 AMAQI
29th Oct 2025614 AMAQI
29th Oct 2025595 AMAQI
29th Oct 2025576 AMAQI
9°C5/12°C
29th Oct 2025567 AMAQI
29th Oct 2025548 AMAQI
29th Oct 2025509 AMAQI
29th Oct 20255410 AMAQI
29th Oct 20255711 AMAQI
29th Oct 20255912 PMAQI
29th Oct 2025611 PMAQI
29th Oct 2025582 PMAQI
29th Oct 2025583 PMAQI
29th Oct 2025574 PMAQI
29th Oct 2025545 PMAQI
29th Oct 2025536 PMAQI
29th Oct 2025547 PMAQI
29th Oct 2025628 PMAQI
29th Oct 2025689 PMAQI
29th Oct 20257910 PMAQI
29th Oct 20258111 PMAQI
30th Oct 20257712 AMAQI
30th Oct 2025761 AMAQI
30th Oct 2025772 AMAQI
30th Oct 2025763 AMAQI
30th Oct 2025764 AMAQI
30th Oct 2025785 AMAQI
30th Oct 2025786 AMAQI
11°C8/15°C
30th Oct 2025767 AMAQI
30th Oct 2025768 AMAQI
30th Oct 2025769 AMAQI
30th Oct 20257710 AMAQI
30th Oct 20257511 AMAQI
30th Oct 20257412 PMAQI
30th Oct 2025701 PMAQI
30th Oct 2025672 PMAQI
30th Oct 2025663 PMAQI
30th Oct 2025654 PMAQI
30th Oct 2025685 PMAQI
30th Oct 2025736 PMAQI
30th Oct 2025817 PMAQI
30th Oct 2025828 PMAQI
30th Oct 2025859 PMAQI
30th Oct 20259310 PMAQI
30th Oct 20259611 PMAQI
31st Oct 20259912 AMAQI
31st Oct 20251031 AMAQI
31st Oct 20251052 AMAQI
31st Oct 20251093 AMAQI
31st Oct 20251124 AMAQI
31st Oct 20251125 AMAQI
31st Oct 20251076 AMAQI
13°C10/16°C
31st Oct 20251077 AMAQI
31st Oct 20251058 AMAQI
31st Oct 20251039 AMAQI
31st Oct 20259810 AMAQI
31st Oct 20258611 AMAQI
31st Oct 20258312 PMAQI
31st Oct 2025781 PMAQI
31st Oct 2025742 PMAQI
31st Oct 2025743 PMAQI
31st Oct 2025754 PMAQI
31st Oct 2025815 PMAQI
31st Oct 2025906 PMAQI
31st Oct 2025967 PMAQI
31st Oct 2025898 PMAQI
31st Oct 2025839 PMAQI
31st Oct 20258310 PMAQI
31st Oct 20258011 PMAQI
1st Nov 20257312 AMAQI
1st Nov 2025661 AMAQI
1st Nov 2025612 AMAQI
1st Nov 2025613 AMAQI
1st Nov 2025604 AMAQI
1st Nov 2025625 AMAQI
1st Nov 2025596 AMAQI
15°C12/18°C
1st Nov 2025567 AMAQI
1st Nov 2025538 AMAQI
1st Nov 2025539 AMAQI
1st Nov 20255210 AMAQI
1st Nov 20254811 AMAQI
1st Nov 20254812 PMAQI
1st Nov 2025471 PMAQI
1st Nov 2025442 PMAQI
1st Nov 2025363 PMAQI
1st Nov 2025334 PMAQI
1st Nov 2025335 PMAQI
1st Nov 2025376 PMAQI
1st Nov 2025437 PMAQI
1st Nov 2025498 PMAQI
1st Nov 2025489 PMAQI
1st Nov 20255010 PMAQI
1st Nov 20254411 PMAQI
2nd Nov 20254212 AMAQI
2nd Nov 2025411 AMAQI
2nd Nov 2025402 AMAQI
2nd Nov 2025423 AMAQI
2nd Nov 2025424 AMAQI
2nd Nov 2025435 AMAQI
2nd Nov 2025466 AMAQI
13°C12/15°C
2nd Nov 2025497 AMAQI
2nd Nov 2025498 AMAQI
2nd Nov 2025429 AMAQI
2nd Nov 20254010 AMAQI
2nd Nov 20254911 AMAQI
2nd Nov 20255012 PMAQI
2nd Nov 2025511 PMAQI
2nd Nov 2025452 PMAQI
2nd Nov 2025383 PMAQI
2nd Nov 2025304 PMAQI
2nd Nov 2025265 PMAQI
2nd Nov 2025286 PMAQI
2nd Nov 2025287 PMAQI
2nd Nov 2025298 PMAQI
2nd Nov 2025319 PMAQI
2nd Nov 20253510 PMAQI
2nd Nov 20254211 PMAQI
3rd Nov 20254212 AMAQI
3rd Nov 2025371 AMAQI
3rd Nov 2025342 AMAQI
3rd Nov 2025343 AMAQI
3rd Nov 2025304 AMAQI
3rd Nov 2025295 AMAQI
3rd Nov 2025336 AMAQI
9°C5/11°C
3rd Nov 2025327 AMAQI
3rd Nov 2025338 AMAQI
3rd Nov 2025339 AMAQI
3rd Nov 20254510 AMAQI
3rd Nov 20254711 AMAQI
3rd Nov 20255212 PMAQI
3rd Nov 2025551 PMAQI
3rd Nov 2025552 PMAQI
3rd Nov 2025553 PMAQI
3rd Nov 2025584 PMAQI
3rd Nov 2025595 PMAQI
3rd Nov 2025596 PMAQI
3rd Nov 2025627 PMAQI
3rd Nov 2025678 PMAQI
3rd Nov 2025739 PMAQI
3rd Nov 20257410 PMAQI
3rd Nov 20257811 PMAQI
4th Nov 20257712 AMAQI
4th Nov 2025771 AMAQI
4th Nov 2025772 AMAQI
4th Nov 2025753 AMAQI
4th Nov 2025724 AMAQI
4th Nov 2025725 AMAQI
4th Nov 2025726 AMAQI
8°C5/12°C
4th Nov 2025717 AMAQI
4th Nov 2025728 AMAQI
4th Nov 2025729 AMAQI
4th Nov 20257210 AMAQI
4th Nov 20257111 AMAQI
4th Nov 20257112 PMAQI
4th Nov 2025711 PMAQI
4th Nov 2025672 PMAQI
4th Nov 2025703 PMAQI
4th Nov 2025744 PMAQI
4th Nov 2025755 PMAQI
4th Nov 2025746 PMAQI
4th Nov 2025727 PMAQI
4th Nov 2025708 PMAQI
4th Nov 2025719 PMAQI
4th Nov 20256910 PMAQI
4th Nov 20256411 PMAQI
5th Nov 20256012 AMAQI
5th Nov 2025581 AMAQI
5th Nov 2025552 AMAQI
5th Nov 2025553 AMAQI
5th Nov 2025544 AMAQI
5th Nov 2025545 AMAQI
5th Nov 2025546 AMAQI
11°C8/14°C
5th Nov 2025577 AMAQI
5th Nov 2025588 AMAQI
5th Nov 2025639 AMAQI
5th Nov 20257110 AMAQI
5th Nov 20257511 AMAQI
5th Nov 20257712 PMAQI
5th Nov 2025701 PMAQI
5th Nov 2025672 PMAQI
5th Nov 2025653 PMAQI
5th Nov 2025684 PMAQI
5th Nov 2025715 PMAQI
5th Nov 2025736 PMAQI
5th Nov 2025747 PMAQI
5th Nov 2025788 PMAQI
5th Nov 2025809 PMAQI
5th Nov 20258210 PMAQI
5th Nov 20258311 PMAQI
6th Nov 20258512 AMAQI
6th Nov 2025831 AMAQI
6th Nov 2025842 AMAQI
6th Nov 2025823 AMAQI
6th Nov 2025814 AMAQI
6th Nov 2025795 AMAQI
6th Nov 2025796 AMAQI
13°C10/17°C
6th Nov 2025817 AMAQI
6th Nov 2025808 AMAQI
6th Nov 2025829 AMAQI
6th Nov 20258510 AMAQI
6th Nov 20258911 AMAQI
6th Nov 20259312 PMAQI
6th Nov 2025961 PMAQI
6th Nov 20251012 PMAQI
6th Nov 20251003 PMAQI
6th Nov 20251014 PMAQI
6th Nov 20251035 PMAQI
6th Nov 20251026 PMAQI
6th Nov 20251047 PMAQI
6th Nov 20251098 PMAQI
6th Nov 20251169 PMAQI
6th Nov 202512410 PMAQI
6th Nov 202512711 PMAQI
7th Nov 202512412 AMAQI
7th Nov 20251261 AMAQI
7th Nov 20251282 AMAQI
7th Nov 20251313 AMAQI
7th Nov 20251274 AMAQI
7th Nov 20251255 AMAQI
7th Nov 20251206 AMAQI
15°C12/19°C
7th Nov 20251197 AMAQI
7th Nov 20251178 AMAQI
7th Nov 20251179 AMAQI
7th Nov 202512110 AMAQI
7th Nov 202512811 AMAQI
7th Nov 202511712 PMAQI
7th Nov 20251061 PMAQI
7th Nov 20251002 PMAQI
7th Nov 2025893 PMAQI
7th Nov 2025894 PMAQI
7th Nov 2025935 PMAQI
7th Nov 20251006 PMAQI
7th Nov 2025997 PMAQI
7th Nov 2025998 PMAQI
7th Nov 20251019 PMAQI
7th Nov 202510210 PMAQI
7th Nov 20259811 PMAQI
8th Nov 20258812 AMAQI
8th Nov 2025861 AMAQI
8th Nov 2025802 AMAQI
8th Nov 2025723 AMAQI
8th Nov 2025694 AMAQI
8th Nov 2025685 AMAQI
8th Nov 2025706 AMAQI
16°C13/20°C
8th Nov 2025717 AMAQI
8th Nov 2025678 AMAQI
8th Nov 2025679 AMAQI
8th Nov 20256810 AMAQI
8th Nov 20256411 AMAQI
8th Nov 20255912 PMAQI
8th Nov 2025551 PMAQI
8th Nov 2025562 PMAQI
8th Nov 2025563 PMAQI
8th Nov 2025574 PMAQI
8th Nov 2025595 PMAQI
8th Nov 2025596 PMAQI
8th Nov 2025617 PMAQI
8th Nov 2025658 PMAQI
8th Nov 2025699 PMAQI
8th Nov 20257310 PMAQI
8th Nov 20257511 PMAQI
9th Nov 20257412 AMAQI
9th Nov 2025731 AMAQI
9th Nov 2025722 AMAQI
9th Nov 2025713 AMAQI
9th Nov 2025714 AMAQI
9th Nov 2025705 AMAQI
9th Nov 2025686 AMAQI
15°C13/17°C
9th Nov 2025647 AMAQI
9th Nov 2025628 AMAQI
9th Nov 2025639 AMAQI
9th Nov 20256410 AMAQI
9th Nov 20256911 AMAQI
9th Nov 20257212 PMAQI
9th Nov 2025711 PMAQI
9th Nov 2025682 PMAQI
9th Nov 2025673 PMAQI
9th Nov 2025684 PMAQI
9th Nov 2025705 PMAQI
9th Nov 2025746 PMAQI
9th Nov 2025757 PMAQI
9th Nov 2025798 PMAQI
9th Nov 2025849 PMAQI
9th Nov 20258210 PMAQI
9th Nov 20257211 PMAQI
10th Nov 20255512 AMAQI
10th Nov 2025481 AMAQI
10th Nov 2025342 AMAQI
10th Nov 2025293 AMAQI
10th Nov 2025304 AMAQI
10th Nov 2025285 AMAQI
10th Nov 2025256 AMAQI
14°C11/18°C
10th Nov 2025277 AMAQI
10th Nov 2025308 AMAQI
10th Nov 2025319 AMAQI
10th Nov 20252710 AMAQI
10th Nov 20252511 AMAQI
10th Nov 20252412 PMAQI
10th Nov 2025231 PMAQI
10th Nov 2025222 PMAQI
10th Nov 2025223 PMAQI
10th Nov 2025224 PMAQI
10th Nov 2025255 PMAQI
10th Nov 2025266 PMAQI
10th Nov 2025277 PMAQI
10th Nov 2025278 PMAQI
10th Nov 2025299 PMAQI
10th Nov 20253310 PMAQI
10th Nov 20253611 PMAQI
11th Nov 20253212 AMAQI
11th Nov 2025301 AMAQI
11th Nov 2025322 AMAQI
11th Nov 2025303 AMAQI
11th Nov 2025284 AMAQI
11th Nov 2025225 AMAQI
11th Nov 2025246 AMAQI
9°C7/11°C
11th Nov 2025277 AMAQI
11th Nov 2025358 AMAQI
11th Nov 2025479 AMAQI
11th Nov 20254810 AMAQI
11th Nov 20254911 AMAQI
11th Nov 20255412 PMAQI
11th Nov 2025541 PMAQI
11th Nov 2025522 PMAQI
11th Nov 2025523 PMAQI
11th Nov 2025554 PMAQI
11th Nov 2025535 PMAQI
11th Nov 2025446 PMAQI
11th Nov 2025407 PMAQI
11th Nov 2025368 PMAQI
11th Nov 2025419 PMAQI
11th Nov 20254910 PMAQI
11th Nov 20255811 PMAQI
12th Nov 20256012 AMAQI
12th Nov 2025621 AMAQI
12th Nov 2025632 AMAQI
12th Nov 2025633 AMAQI
12th Nov 2025604 AMAQI
12th Nov 2025595 AMAQI
12th Nov 2025616 AMAQI
10°C8/13°C
12th Nov 2025617 AMAQI
12th Nov 2025648 AMAQI
12th Nov 2025669 AMAQI
12th Nov 20257010 AMAQI
12th Nov 20257111 AMAQI
12th Nov 20257212 PMAQI
12th Nov 2025711 PMAQI
12th Nov 2025682 PMAQI
12th Nov 2025683 PMAQI
12th Nov 2025674 PMAQI
12th Nov 2025665 PMAQI
12th Nov 2025646 PMAQI
12th Nov 2025677 PMAQI
12th Nov 2025748 PMAQI
12th Nov 2025779 PMAQI
12th Nov 20257910 PMAQI
12th Nov 20257811 PMAQI
13th Nov 20257612 AMAQI
13th Nov 2025731 AMAQI
13th Nov 2025722 AMAQI
13th Nov 2025743 AMAQI
13th Nov 2025814 AMAQI
13th Nov 2025845 AMAQI
13th Nov 2025866 AMAQI
11°C8/14°C
13th Nov 2025857 AMAQI
13th Nov 2025938 AMAQI
13th Nov 2025979 AMAQI
13th Nov 202510710 AMAQI
13th Nov 202511011 AMAQI
13th Nov 202510912 PMAQI
13th Nov 20251141 PMAQI
13th Nov 20251152 PMAQI
13th Nov 20251113 PMAQI
13th Nov 2025934 PMAQI
13th Nov 2025815 PMAQI
13th Nov 2025806 PMAQI
13th Nov 2025777 PMAQI
13th Nov 2025758 PMAQI
13th Nov 2025699 PMAQI
13th Nov 20256510 PMAQI
13th Nov 20256411 PMAQI
14th Nov 20256212 AMAQI
14th Nov 2025631 AMAQI
14th Nov 2025622 AMAQI
14th Nov 2025613 AMAQI
14th Nov 2025584 AMAQI
14th Nov 2025575 AMAQI
14th Nov 2025586 AMAQI
12°C10/15°C
14th Nov 2025597 AMAQI
14th Nov 2025628 AMAQI
14th Nov 2025639 AMAQI
14th Nov 20256510 AMAQI
14th Nov 20256711 AMAQI
14th Nov 20256212 PMAQI
14th Nov 2025551 PMAQI
14th Nov 2025482 PMAQI
14th Nov 2025433 PMAQI
14th Nov 2025434 PMAQI
14th Nov 2025415 PMAQI
14th Nov 2025406 PMAQI
14th Nov 2025417 PMAQI
14th Nov 2025448 PMAQI
14th Nov 2025569 PMAQI
14th Nov 20255810 PMAQI
14th Nov 20256011 PMAQI
15th Nov 20256612 AMAQI
15th Nov 2025701 AMAQI
15th Nov 2025712 AMAQI
15th Nov 2025683 AMAQI
15th Nov 2025674 AMAQI
15th Nov 2025655 AMAQI
15th Nov 2025666 AMAQI
10°C9/13°C
15th Nov 2025677 AMAQI
15th Nov 2025698 AMAQI
15th Nov 2025739 AMAQI
15th Nov 20257310 AMAQI
15th Nov 20257311 AMAQI
15th Nov 20257312 PMAQI
15th Nov 2025731 PMAQI
15th Nov 2025742 PMAQI
15th Nov 2025743 PMAQI
15th Nov 2025744 PMAQI
15th Nov 2025735 PMAQI
15th Nov 2025716 PMAQI
15th Nov 2025737 PMAQI
15th Nov 2025848 PMAQI
15th Nov 2025909 PMAQI
15th Nov 202510310 PMAQI
15th Nov 202510811 PMAQI
16th Nov 202511312 AMAQI
16th Nov 20251121 AMAQI
16th Nov 20251122 AMAQI
16th Nov 20251123 AMAQI
16th Nov 20251074 AMAQI
16th Nov 20251035 AMAQI
16th Nov 2025966 AMAQI
11°C8/14°C
16th Nov 2025927 AMAQI
16th Nov 2025928 AMAQI
16th Nov 2025899 AMAQI
16th Nov 20258910 AMAQI
16th Nov 20258811 AMAQI
16th Nov 20259012 PMAQI
16th Nov 2025871 PMAQI
16th Nov 2025782 PMAQI
16th Nov 2025743 PMAQI
16th Nov 2025774 PMAQI
16th Nov 2025765 PMAQI
16th Nov 2025646 PMAQI
16th Nov 2025567 PMAQI
16th Nov 2025458 PMAQI
16th Nov 2025449 PMAQI
16th Nov 20255310 PMAQI
16th Nov 20255811 PMAQI
17th Nov 20257712 AMAQI
17th Nov 2025821 AMAQI
17th Nov 2025792 AMAQI
17th Nov 2025733 AMAQI
17th Nov 2025704 AMAQI
17th Nov 2025665 AMAQI
17th Nov 2025586 AMAQI
11°C8/15°C
17th Nov 2025487 AMAQI
17th Nov 2025468 AMAQI
17th Nov 2025469 AMAQI
17th Nov 20254510 AMAQI
17th Nov 20255011 AMAQI
17th Nov 20255012 PMAQI
17th Nov 2025481 PMAQI
17th Nov 2025502 PMAQI
17th Nov 2025493 PMAQI
17th Nov 2025464 PMAQI
17th Nov 2025435 PMAQI
17th Nov 2025436 PMAQI
17th Nov 2025427 PMAQI
17th Nov 2025408 PMAQI
17th Nov 2025419 PMAQI
17th Nov 20254210 PMAQI
17th Nov 20254111 PMAQI
18th Nov 20253912 AMAQI
18th Nov 2025391 AMAQI
18th Nov 2025362 AMAQI
18th Nov 2025383 AMAQI
18th Nov 2025414 AMAQI
18th Nov 2025405 AMAQI
18th Nov 2025446 AMAQI
4°C2/5°C
18th Nov 2025477 AMAQI
18th Nov 2025508 AMAQI
18th Nov 2025499 AMAQI
18th Nov 20254910 AMAQI
18th Nov 20254911 AMAQI
18th Nov 20254612 PMAQI
18th Nov 2025441 PMAQI
18th Nov 2025422 PMAQI
18th Nov 2025413 PMAQI
18th Nov 2025394 PMAQI
18th Nov 2025405 PMAQI
18th Nov 2025436 PMAQI
18th Nov 2025437 PMAQI
18th Nov 2025438 PMAQI
18th Nov 2025469 PMAQI
18th Nov 20254910 PMAQI
18th Nov 20254811 PMAQI
19th Nov 20255312 AMAQI
19th Nov 2025511 AMAQI
19th Nov 2025522 AMAQI
19th Nov 2025463 AMAQI
19th Nov 2025464 AMAQI
19th Nov 2025435 AMAQI
19th Nov 2025426 AMAQI
3°C1/5°C
19th Nov 2025327 AMAQI
19th Nov 2025358 AMAQI
19th Nov 2025459 AMAQI
19th Nov 20255810 AMAQI
19th Nov 20255711 AMAQI
19th Nov 20255812 PMAQI
19th Nov 2025591 PMAQI
19th Nov 2025592 PMAQI
19th Nov 2025643 PMAQI
19th Nov 2025624 PMAQI
19th Nov 2025625 PMAQI
19th Nov 2025616 PMAQI
19th Nov 2025617 PMAQI
19th Nov 2025638 PMAQI
19th Nov 2025639 PMAQI
19th Nov 20256610 PMAQI
19th Nov 20257011 PMAQI
20th Nov 20257112 AMAQI
20th Nov 2025731 AMAQI
20th Nov 2025772 AMAQI
20th Nov 2025803 AMAQI
20th Nov 2025804 AMAQI
20th Nov 2025815 AMAQI
20th Nov 2025836 AMAQI
4°C1/6°C
20th Nov 2025827 AMAQI
20th Nov 2025788 AMAQI
20th Nov 2025789 AMAQI
20th Nov 20257810 AMAQI
20th Nov 20258011 AMAQI
20th Nov 20258312 PMAQI
20th Nov 2025841 PMAQI
20th Nov 2025802 PMAQI
20th Nov 2025803 PMAQI
20th Nov 2025844 PMAQI
20th Nov 2025855 PMAQI
20th Nov 2025856 PMAQI
20th Nov 2025767 PMAQI
20th Nov 2025638 PMAQI
20th Nov 2025549 PMAQI
20th Nov 20254210 PMAQI
20th Nov 20253511 PMAQI
21st Nov 20253412 AMAQI
21st Nov 2025321 AMAQI
21st Nov 2025312 AMAQI
21st Nov 2025333 AMAQI
21st Nov 2025344 AMAQI
21st Nov 2025335 AMAQI
21st Nov 2025336 AMAQI
8°C5/12°C
21st Nov 2025387 AMAQI
21st Nov 2025398 AMAQI
21st Nov 2025539 AMAQI
21st Nov 20255710 AMAQI
21st Nov 20256211 AMAQI
21st Nov 20256312 PMAQI
21st Nov 2025651 PMAQI
21st Nov 2025542 PMAQI
21st Nov 2025463 PMAQI
21st Nov 2025404 PMAQI
21st Nov 2025305 PMAQI
21st Nov 2025296 PMAQI
21st Nov 2025277 PMAQI
21st Nov 2025268 PMAQI
21st Nov 2025279 PMAQI
21st Nov 20253210 PMAQI
21st Nov 20254411 PMAQI
22nd Nov 20255212 AMAQI
22nd Nov 2025571 AMAQI
22nd Nov 2025602 AMAQI
22nd Nov 2025623 AMAQI
22nd Nov 2025654 AMAQI
22nd Nov 2025645 AMAQI
22nd Nov 2025646 AMAQI
8°C4/13°C
22nd Nov 2025677 AMAQI
22nd Nov 2025688 AMAQI
22nd Nov 2025689 AMAQI
22nd Nov 20256910 AMAQI
22nd Nov 20257111 AMAQI
22nd Nov 20257512 PMAQI
22nd Nov 2025741 PMAQI
22nd Nov 2025722 PMAQI
22nd Nov 2025643 PMAQI
22nd Nov 2025644 PMAQI
22nd Nov 2025655 PMAQI
22nd Nov 2025706 PMAQI
22nd Nov 2025807 PMAQI
22nd Nov 2025868 PMAQI
22nd Nov 2025909 PMAQI
22nd Nov 20259910 PMAQI
22nd Nov 202510211 PMAQI
23rd Nov 202510312 AMAQI
23rd Nov 2025971 AMAQI
23rd Nov 2025932 AMAQI
23rd Nov 2025903 AMAQI
23rd Nov 2025884 AMAQI
23rd Nov 2025885 AMAQI
23rd Nov 2025886 AMAQI
10°C7/12°C
23rd Nov 2025907 AMAQI
23rd Nov 2025908 AMAQI
23rd Nov 2025909 AMAQI
23rd Nov 20258810 AMAQI
23rd Nov 20258711 AMAQI
23rd Nov 20258112 PMAQI
23rd Nov 2025751 PMAQI
23rd Nov 2025702 PMAQI
23rd Nov 2025663 PMAQI
23rd Nov 2025694 PMAQI
23rd Nov 2025705 PMAQI
23rd Nov 2025746 PMAQI
23rd Nov 2025767 PMAQI
23rd Nov 2025818 PMAQI
23rd Nov 2025899 PMAQI
23rd Nov 20259210 PMAQI
23rd Nov 20259611 PMAQI
24th Nov 20259812 AMAQI
24th Nov 20251011 AMAQI
24th Nov 20251062 AMAQI
24th Nov 20251123 AMAQI
24th Nov 20251144 AMAQI
24th Nov 20251185 AMAQI
24th Nov 20251206 AMAQI
10°C8/13°C
24th Nov 20251207 AMAQI
24th Nov 20251218 AMAQI
24th Nov 20251199 AMAQI
24th Nov 202511810 AMAQI
24th Nov 202511811 AMAQI
24th Nov 202511812 PMAQI
24th Nov 20251181 PMAQI
24th Nov 20251272 PMAQI
24th Nov 20251273 PMAQI
24th Nov 20251284 PMAQI
24th Nov 20251305 PMAQI
24th Nov 20251486 PMAQI
24th Nov 20251537 PMAQI
24th Nov 20251548 PMAQI
24th Nov 20251599 PMAQI
24th Nov 202515810 PMAQI
24th Nov 202516211 PMAQI
25th Nov 202516412 AMAQI
25th Nov 20251661 AMAQI
25th Nov 20251692 AMAQI
25th Nov 20251683 AMAQI
25th Nov 20251674 AMAQI
25th Nov 20251545 AMAQI
25th Nov 20251166 AMAQI
11°C10/15°C
25th Nov 20251657 AMAQI
25th Nov 20251668 AMAQI
25th Nov 20251629 AMAQI
25th Nov 202513310 AMAQI
25th Nov 202510711 AMAQI
25th Nov 202510212 PMAQI
25th Nov 20251231 PMAQI
25th Nov 20251422 PMAQI
25th Nov 20251433 PMAQI
25th Nov 20251384 PMAQI
25th Nov 20251325 PMAQI
25th Nov 20251206 PMAQI
25th Nov 20251197 PMAQI
25th Nov 20251268 PMAQI
25th Nov 20251329 PMAQI
25th Nov 202513810 PMAQI
25th Nov 202514511 PMAQI
26th Nov 202514512 AMAQI
26th Nov 20251501 AMAQI
26th Nov 20251502 AMAQI
26th Nov 20251523 AMAQI
26th Nov 20251494 AMAQI
26th Nov 20251475 AMAQI
26th Nov 20251436 AMAQI
--°C/°C
26th Nov 20251437 AMAQI
7 AM12 PM
5 PM
12 AM
6 AM
--°C/°C
Day time
Avg. Highest Time
7 AM - 5 PM
69AQI
11 hours / Day
330 hours / Month
Avg. Lowest Time
3 PM - 5 PM
65AQI
3 hours / Day
90 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 7 AM to 5 PM (Avg. 69), while the lowest AQI was between 3 PM to 5 PM (Avg. 65).
Night time
Avg. Highest Time
12 AM - 6 AM
72AQI
7 hours / Day
210 hours / Month
Avg. Lowest Time
6 PM - 7 PM
65AQI
2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 6 AM (Avg. 72), while the lowest AQI was between 6 PM to 7 PM (Avg. 65).
2025 Days Vs Air Quality
Ansan, Gyeonggi, South Korea
2025
31%
101
64%
209
5%
18
Total number of days with different AQI categories in last 329 days in 2025 (36 days remaining)
Good
101 DaysModerate
209 DaysPoor
18 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 31%
Health Risk Level:
High
In 2025, 31% of 329 days were within WHO’s safe air quality limits. The risk of health issues is High, with respiratory problems, heart disease, skin issues, and stress being more common, particularly among children and the elderly.
Annual Air Quality Insights
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.
-1th undefined 2025
-1th undefined 2025
-1th undefined 2025
1st January 2025
73AQI
73AQI
2nd January 2025
54AQI
54AQI
3rd January 2025
57AQI
57AQI
4th January 2025
59AQI
59AQI
5th January 2025
67AQI
67AQI
6th January 2025
94AQI
94AQI
7th January 2025
52AQI
52AQI
8th January 2025
66AQI
66AQI
9th January 2025
42AQI
42AQI
10th January 2025
49AQI
49AQI
11th January 2025
56AQI
56AQI
12th January 2025
75AQI
75AQI
13th January 2025
88AQI
88AQI
14th January 2025
100AQI
100AQI
15th January 2025
53AQI
53AQI
16th January 2025
77AQI
77AQI
17th January 2025
74AQI
74AQI
18th January 2025
80AQI
80AQI
19th January 2025
81AQI
81AQI
20th January 2025
130AQI
130AQI
21st January 2025
133AQI
133AQI
22nd January 2025
150AQI
150AQI
23rd January 2025
115AQI
115AQI
24th January 2025
110AQI
110AQI
25th January 2025
70AQI
70AQI
26th January 2025
56AQI
56AQI
27th January 2025
66AQI
66AQI
28th January 2025
57AQI
57AQI
29th January 2025
58AQI
58AQI
30th January 2025
48AQI
48AQI
31st January 2025
70AQI
70AQI
1st February 2025
80AQI
80AQI
2nd February 2025
89AQI
89AQI
3rd February 2025
52AQI
52AQI
4th February 2025
51AQI
51AQI
5th February 2025
42AQI
42AQI
6th February 2025
53AQI
53AQI
7th February 2025
45AQI
45AQI
8th February 2025
39AQI
39AQI
9th February 2025
44AQI
44AQI
10th February 2025
53AQI
53AQI
11th February 2025
70AQI
70AQI
12th February 2025
78AQI
78AQI
13th February 2025
53AQI
53AQI
14th February 2025
91AQI
91AQI
15th February 2025
58AQI
58AQI
16th February 2025
112AQI
112AQI
17th February 2025
49AQI
49AQI
18th February 2025
61AQI
61AQI
19th February 2025
45AQI
45AQI
20th February 2025
54AQI
54AQI
21st February 2025
52AQI
52AQI
22nd February 2025
56AQI
56AQI
23rd February 2025
52AQI
52AQI
24th February 2025
55AQI
55AQI
25th February 2025
55AQI
55AQI
26th February 2025
69AQI
69AQI
27th February 2025
61AQI
61AQI
28th February 2025
85AQI
85AQI
1st March 2025
102AQI
102AQI
2nd March 2025
82AQI
82AQI
3rd March 2025
56AQI
56AQI
4th March 2025
46AQI
46AQI
5th March 2025
36AQI
36AQI
6th March 2025
78AQI
78AQI
7th March 2025
94AQI
94AQI
8th March 2025
89AQI
89AQI
9th March 2025
101AQI
101AQI
10th March 2025
121AQI
121AQI
11th March 2025
111AQI
111AQI
12th March 2025
108AQI
108AQI
13th March 2025
100AQI
100AQI
14th March 2025
79AQI
79AQI
15th March 2025
61AQI
61AQI
16th March 2025
73AQI
73AQI
17th March 2025
66AQI
66AQI
18th March 2025
74AQI
74AQI
19th March 2025
81AQI
81AQI
20th March 2025
92AQI
92AQI
21st March 2025
102AQI
102AQI
22nd March 2025
109AQI
109AQI
23rd March 2025
114AQI
114AQI
24th March 2025
114AQI
114AQI
25th March 2025
128AQI
128AQI
26th March 2025
95AQI
95AQI
27th March 2025
93AQI
93AQI
28th March 2025
59AQI
59AQI
29th March 2025
48AQI
48AQI
30th March 2025
43AQI
43AQI
31st March 2025
61AQI
61AQI
1st April 2025
76AQI
76AQI
2nd April 2025
86AQI
86AQI
3rd April 2025
87AQI
87AQI
4th April 2025
84AQI
84AQI
5th April 2025
72AQI
72AQI
6th April 2025
66AQI
66AQI
7th April 2025
74AQI
74AQI
8th April 2025
79AQI
79AQI
9th April 2025
76AQI
76AQI
10th April 2025
84AQI
84AQI
11th April 2025
94AQI
94AQI
12th April 2025
69AQI
69AQI
13th April 2025
65AQI
65AQI
14th April 2025
47AQI
47AQI
15th April 2025
58AQI
58AQI
16th April 2025
63AQI
63AQI
17th April 2025
70AQI
70AQI
18th April 2025
79AQI
79AQI
19th April 2025
50AQI
50AQI
20th April 2025
66AQI
66AQI
21st April 2025
55AQI
55AQI
22nd April 2025
47AQI
47AQI
23rd April 2025
35AQI
35AQI
24th April 2025
66AQI
66AQI
25th April 2025
60AQI
60AQI
26th April 2025
55AQI
55AQI
27th April 2025
42AQI
42AQI
28th April 2025
60AQI
60AQI
29th April 2025
70AQI
70AQI
30th April 2025
59AQI
59AQI
1st May 2025
62AQI
62AQI
2nd May 2025
50AQI
50AQI
3rd May 2025
49AQI
49AQI
4th May 2025
47AQI
47AQI
5th May 2025
54AQI
54AQI
6th May 2025
42AQI
42AQI
7th May 2025
56AQI
56AQI
8th May 2025
63AQI
63AQI
9th May 2025
52AQI
52AQI
10th May 2025
62AQI
62AQI
11th May 2025
72AQI
72AQI
12th May 2025
75AQI
75AQI
13th May 2025
76AQI
76AQI
14th May 2025
73AQI
73AQI
15th May 2025
66AQI
66AQI
16th May 2025
57AQI
57AQI
17th May 2025
51AQI
51AQI
18th May 2025
57AQI
57AQI
19th May 2025
62AQI
62AQI
20th May 2025
40AQI
40AQI
21st May 2025
50AQI
50AQI
22nd May 2025
52AQI
52AQI
23rd May 2025
66AQI
66AQI
24th May 2025
50AQI
50AQI
25th May 2025
50AQI
50AQI
26th May 2025
69AQI
69AQI
27th May 2025
83AQI
83AQI
28th May 2025
89AQI
89AQI
29th May 2025
83AQI
83AQI
30th May 2025
92AQI
92AQI
31st May 2025
91AQI
91AQI
1st June 2025
88AQI
88AQI
2nd June 2025
94AQI
94AQI
3rd June 2025
76AQI
76AQI
4th June 2025
60AQI
60AQI
5th June 2025
60AQI
60AQI
6th June 2025
59AQI
59AQI
7th June 2025
67AQI
67AQI
8th June 2025
56AQI
56AQI
9th June 2025
63AQI
63AQI
10th June 2025
52AQI
52AQI
11th June 2025
57AQI
57AQI
12th June 2025
66AQI
66AQI
13th June 2025
76AQI
76AQI
14th June 2025
68AQI
68AQI
15th June 2025
59AQI
59AQI
16th June 2025
67AQI
67AQI
17th June 2025
67AQI
67AQI
18th June 2025
69AQI
69AQI
19th June 2025
67AQI
67AQI
20th June 2025
54AQI
54AQI
21st June 2025
61AQI
61AQI
22nd June 2025
68AQI
68AQI
23rd June 2025
74AQI
74AQI
24th June 2025
65AQI
65AQI
25th June 2025
55AQI
55AQI
26th June 2025
59AQI
59AQI
27th June 2025
67AQI
67AQI
28th June 2025
65AQI
65AQI
29th June 2025
53AQI
53AQI
30th June 2025
51AQI
51AQI
1st July 2025
47AQI
47AQI
2nd July 2025
49AQI
49AQI
3rd July 2025
54AQI
54AQI
4th July 2025
53AQI
53AQI
5th July 2025
51AQI
51AQI
6th July 2025
53AQI
53AQI
7th July 2025
66AQI
66AQI
8th July 2025
69AQI
69AQI
9th July 2025
59AQI
59AQI
10th July 2025
55AQI
55AQI
11th July 2025
52AQI
52AQI
12th July 2025
52AQI
52AQI
13th July 2025
62AQI
62AQI
14th July 2025
57AQI
57AQI
15th July 2025
48AQI
48AQI
16th July 2025
54AQI
54AQI
17th July 2025
44AQI
44AQI
18th July 2025
47AQI
47AQI
19th July 2025
39AQI
39AQI
20th July 2025
43AQI
43AQI
21st July 2025
44AQI
44AQI
22nd July 2025
43AQI
43AQI
23rd July 2025
47AQI
47AQI
24th July 2025
52AQI
52AQI
25th July 2025
63AQI
63AQI
26th July 2025
57AQI
57AQI
27th July 2025
52AQI
52AQI
28th July 2025
66AQI
66AQI
29th July 2025
69AQI
69AQI
30th July 2025
71AQI
71AQI
31st July 2025
65AQI
65AQI
1st August 2025
60AQI
60AQI
2nd August 2025
62AQI
62AQI
3rd August 2025
62AQI
62AQI
4th August 2025
52AQI
52AQI
5th August 2025
52AQI
52AQI
6th August 2025
49AQI
49AQI
7th August 2025
51AQI
51AQI
8th August 2025
56AQI
56AQI
9th August 2025
57AQI
57AQI
10th August 2025
54AQI
54AQI
11th August 2025
58AQI
58AQI
12th August 2025
53AQI
53AQI
13th August 2025
44AQI
44AQI
14th August 2025
45AQI
45AQI
15th August 2025
42AQI
42AQI
16th August 2025
40AQI
40AQI
17th August 2025
42AQI
42AQI
18th August 2025
51AQI
51AQI
19th August 2025
47AQI
47AQI
20th August 2025
48AQI
48AQI
21st August 2025
49AQI
49AQI
22nd August 2025
49AQI
49AQI
23rd August 2025
50AQI
50AQI
24th August 2025
53AQI
53AQI
25th August 2025
50AQI
50AQI
26th August 2025
44AQI
44AQI
27th August 2025
51AQI
51AQI
28th August 2025
52AQI
52AQI
29th August 2025
46AQI
46AQI
30th August 2025
45AQI
45AQI
31st August 2025
50AQI
50AQI
1st September 2025
42AQI
42AQI
2nd September 2025
49AQI
49AQI
3rd September 2025
52AQI
52AQI
4th September 2025
42AQI
42AQI
5th September 2025
41AQI
41AQI
6th September 2025
40AQI
40AQI
7th September 2025
42AQI
42AQI
8th September 2025
49AQI
49AQI
9th September 2025
54AQI
54AQI
10th September 2025
50AQI
50AQI
11th September 2025
51AQI
51AQI
12th September 2025
50AQI
50AQI
13th September 2025
42AQI
42AQI
14th September 2025
44AQI
44AQI
15th September 2025
49AQI
49AQI
16th September 2025
47AQI
47AQI
17th September 2025
38AQI
38AQI
18th September 2025
34AQI
34AQI
19th September 2025
33AQI
33AQI
20th September 2025
28AQI
28AQI
21st September 2025
26AQI
26AQI
22nd September 2025
27AQI
27AQI
23rd September 2025
27AQI
27AQI
24th September 2025
32AQI
32AQI
25th September 2025
38AQI
38AQI
26th September 2025
61AQI
61AQI
27th September 2025
54AQI
54AQI
28th September 2025
45AQI
45AQI
29th September 2025
49AQI
49AQI
30th September 2025
63AQI
63AQI
1st October 2025
69AQI
69AQI
2nd October 2025
61AQI
61AQI
3rd October 2025
65AQI
65AQI
4th October 2025
42AQI
42AQI
5th October 2025
46AQI
46AQI
6th October 2025
35AQI
35AQI
7th October 2025
24AQI
24AQI
8th October 2025
39AQI
39AQI
9th October 2025
51AQI
51AQI
10th October 2025
42AQI
42AQI
11th October 2025
44AQI
44AQI
12th October 2025
32AQI
32AQI
13th October 2025
26AQI
26AQI
14th October 2025
30AQI
30AQI
15th October 2025
39AQI
39AQI
16th October 2025
40AQI
40AQI
17th October 2025
44AQI
44AQI
18th October 2025
51AQI
51AQI
19th October 2025
60AQI
60AQI
20th October 2025
58AQI
58AQI
21st October 2025
56AQI
56AQI
22nd October 2025
50AQI
50AQI
23rd October 2025
29AQI
29AQI
24th October 2025
32AQI
32AQI
25th October 2025
48AQI
48AQI
26th October 2025
71AQI
71AQI
27th October 2025
49AQI
49AQI
28th October 2025
37AQI
37AQI
29th October 2025
60AQI
60AQI
30th October 2025
78AQI
78AQI
31st October 2025
94AQI
94AQI
1st November 2025
54AQI
54AQI
2nd November 2025
40AQI
40AQI
3rd November 2025
49AQI
49AQI
4th November 2025
73AQI
73AQI
5th November 2025
66AQI
66AQI
6th November 2025
94AQI
94AQI
7th November 2025
113AQI
113AQI
8th November 2025
71AQI
71AQI
9th November 2025
72AQI
72AQI
10th November 2025
33AQI
33AQI
11th November 2025
40AQI
40AQI
12th November 2025
67AQI
67AQI
13th November 2025
84AQI
84AQI
14th November 2025
56AQI
56AQI
15th November 2025
74AQI
74AQI
16th November 2025
86AQI
86AQI
17th November 2025
56AQI
56AQI
18th November 2025
43AQI
43AQI
19th November 2025
55AQI
55AQI
20th November 2025
73AQI
73AQI
21st November 2025
38AQI
38AQI
22nd November 2025
70AQI
70AQI
23rd November 2025
87AQI
87AQI
24th November 2025
125AQI
125AQI
25th November 2025
26th November 2025
27th November 2025
28th November 2025
29th November 2025
30th November 2025
1st December 2025
2nd December 2025
3rd December 2025
4th December 2025
5th December 2025
6th December 2025
7th December 2025
8th December 2025
9th December 2025
10th December 2025
11th December 2025
12th December 2025
13th December 2025
14th December 2025
15th December 2025
16th December 2025
17th December 2025
18th December 2025
19th December 2025
20th December 2025
21st December 2025
22nd December 2025
23rd December 2025
24th December 2025
25th December 2025
26th December 2025
27th December 2025
28th December 2025
29th December 2025
30th December 2025
31st December 2025
76AQI
61AQI
84AQI
66AQI
63AQI
65AQI
54AQI
50AQI
43AQI
48AQI
67AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202562AQI
3
23
5
6
21
1
4
17
10
5
25
8
23
30
10
21
16
15
24
6
19
12
6
16
2
101
209
18
Highest AQI recorded in
March84AQI
Lowest AQI recorded in
September43AQI
202462AQI
10
15
6
10
12
6
1
6
21
2
2
2
25
3
10
21
6
24
23
7
1
10
21
23
7
14
16
1
9
21
6
25
129
215
19
3
Highest AQI recorded in
January78AQI
Lowest AQI recorded in
September42AQI
202368AQI
7
16
6
2
2
19
5
2
2
16
13
5
20
4
1
5
24
2
5
25
14
16
1
15
16
16
14
11
19
1
12
15
2
11
16
4
105
216
38
5
Highest AQI recorded in
March93AQI
Lowest AQI recorded in
September49AQI
202268AQI
2
20
7
2
3
12
5
2
6
18
7
7
17
6
7
22
2
18
12
6
19
3
1
18
9
2
17
11
3
5
18
6
1
8
21
2
100
180
40
5
Highest AQI recorded in
January87AQI
Lowest AQI recorded in
August34AQI
202169AQI
8
20
3
7
13
6
2
4
16
8
2
1
8
19
3
11
17
1
2
6
23
1
11
19
1
18
13
25
5
11
20
6
18
4
2
8
12
11
123
195
38
6
1
2
Highest AQI recorded in
March99AQI
Lowest AQI recorded in
September40AQI
202061AQI
3
9
1
5
16
6
12
6
24
16
13
2
18
13
21
9
12
17
2
9
13
8
8
15
7
1
104
141
20
1
Highest AQI recorded in
December79AQI
Lowest AQI recorded in
September44AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2021(Avg.)
69AQILeast Polluted Year Recorded
2020(Avg.)
61AQIAnsan's annual 2025 AQI (62) shows an average percentage change of -5.2% (improved AQI) compared to previous years: 2020 (61), 2021 (69), 2022 (68), 2023 (68), 2024 (62).
