Hongseong, 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+
November Air Quality Analysis
Hongseong, Chungnam, South Korea
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
10th Nov 2022
149AQILowest AQI recorded on
24th Nov 2023
27AQISame Day Analysis (13th November ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 93 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 14th Nov - 15th Nov 2025
Hongseong, Chungnam, South Korea
AQI
Day
Night
.
6 AM14th Nov 2025
5 PM
5 AM15th Nov 2025
Day time
Avg. Highest Time
12AMNaNth undefined
AQI
Avg. Lowest Time
12AMNaNth undefined
AQI
Night time
Avg. Highest Time
3AM15th Nov
73AQI
Avg. Lowest Time
3PM14th Nov
44AQI
In the last 24 hours,
Hongseong's AQI reached its highest point of 73 at 3 AM during the Night, while the lowest point, 44, was recorded at 3 PM during the Night between 14th Nov and 15th Nov 2025.
Day & Night AQI Trend : Oct - Nov 2025
Hongseong, Chungnam, South Korea
OctNov
16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th
Day
Night
16th Oct 2025216 AMAQI
16th Oct 2025247 AMAQI
16th Oct 2025478 AMAQI
16th Oct 2025509 AMAQI
16th Oct 20254110 AMAQI
16th Oct 20253911 AMAQI
16th Oct 20255912 PMAQI
16th Oct 2025531 PMAQI
16th Oct 2025492 PMAQI
16th Oct 2025433 PMAQI
16th Oct 2025474 PMAQI
16th Oct 2025525 PMAQI
16th Oct 2025546 PMAQI
16th Oct 2025577 PMAQI
16th Oct 2025568 PMAQI
16th Oct 2025589 PMAQI
16th Oct 20255710 PMAQI
16th Oct 20256211 PMAQI
17th Oct 20256112 AMAQI
17th Oct 2025621 AMAQI
17th Oct 2025622 AMAQI
17th Oct 2025583 AMAQI
17th Oct 2025614 AMAQI
17th Oct 2025545 AMAQI
19°C16/22°C
17th Oct 2025556 AMAQI
17th Oct 2025547 AMAQI
17th Oct 2025308 AMAQI
17th Oct 2025249 AMAQI
17th Oct 20252310 AMAQI
17th Oct 20255111 AMAQI
17th Oct 20255512 PMAQI
17th Oct 2025551 PMAQI
17th Oct 2025522 PMAQI
17th Oct 2025533 PMAQI
17th Oct 2025524 PMAQI
17th Oct 2025495 PMAQI
17th Oct 2025486 PMAQI
17th Oct 2025477 PMAQI
17th Oct 2025438 PMAQI
17th Oct 2025589 PMAQI
17th Oct 20256210 PMAQI
17th Oct 20255911 PMAQI
18th Oct 20255412 AMAQI
18th Oct 2025521 AMAQI
18th Oct 2025522 AMAQI
18th Oct 2025533 AMAQI
18th Oct 2025524 AMAQI
18th Oct 2025515 AMAQI
19°C16/24°C
18th Oct 2025466 AMAQI
18th Oct 2025377 AMAQI
18th Oct 2025428 AMAQI
18th Oct 2025469 AMAQI
18th Oct 20254910 AMAQI
18th Oct 20254811 AMAQI
18th Oct 20254912 PMAQI
18th Oct 2025481 PMAQI
18th Oct 2025492 PMAQI
18th Oct 2025553 PMAQI
18th Oct 2025604 PMAQI
18th Oct 2025605 PMAQI
18th Oct 2025606 PMAQI
18th Oct 2025607 PMAQI
18th Oct 2025598 PMAQI
18th Oct 2025589 PMAQI
18th Oct 20256710 PMAQI
18th Oct 20254911 PMAQI
19th Oct 20252912 AMAQI
19th Oct 2025551 AMAQI
19th Oct 2025602 AMAQI
19th Oct 2025593 AMAQI
19th Oct 2025624 AMAQI
19th Oct 2025675 AMAQI
16°C13/18°C
19th Oct 2025686 AMAQI
19th Oct 2025677 AMAQI
19th Oct 2025768 AMAQI
19th Oct 2025719 AMAQI
19th Oct 20258110 AMAQI
19th Oct 20258011 AMAQI
19th Oct 20258412 PMAQI
19th Oct 2025811 PMAQI
19th Oct 2025712 PMAQI
19th Oct 2025653 PMAQI
19th Oct 2025684 PMAQI
19th Oct 2025685 PMAQI
19th Oct 2025666 PMAQI
19th Oct 2025607 PMAQI
19th Oct 2025558 PMAQI
19th Oct 2025559 PMAQI
19th Oct 20256110 PMAQI
19th Oct 20255811 PMAQI
20th Oct 20255112 AMAQI
20th Oct 2025541 AMAQI
20th Oct 2025562 AMAQI
20th Oct 2025563 AMAQI
20th Oct 2025564 AMAQI
20th Oct 2025565 AMAQI
14°C10/19°C
20th Oct 2025556 AMAQI
20th Oct 2025567 AMAQI
20th Oct 2025568 AMAQI
20th Oct 2025569 AMAQI
20th Oct 20255510 AMAQI
20th Oct 20255811 AMAQI
20th Oct 20256412 PMAQI
20th Oct 2025621 PMAQI
20th Oct 2025702 PMAQI
20th Oct 2025683 PMAQI
20th Oct 2025684 PMAQI
20th Oct 2025635 PMAQI
20th Oct 2025646 PMAQI
20th Oct 2025657 PMAQI
20th Oct 2025658 PMAQI
20th Oct 2025609 PMAQI
20th Oct 20255910 PMAQI
20th Oct 20255611 PMAQI
21st Oct 20255712 AMAQI
21st Oct 2025571 AMAQI
21st Oct 2025562 AMAQI
21st Oct 2025583 AMAQI
21st Oct 2025604 AMAQI
21st Oct 2025595 AMAQI
10°C6/14°C
21st Oct 2025536 AMAQI
21st Oct 2025547 AMAQI
21st Oct 2025568 AMAQI
21st Oct 2025589 AMAQI
21st Oct 20255710 AMAQI
21st Oct 20255911 AMAQI
21st Oct 20256112 PMAQI
21st Oct 2025621 PMAQI
21st Oct 2025602 PMAQI
21st Oct 2025593 PMAQI
21st Oct 2025594 PMAQI
21st Oct 2025585 PMAQI
21st Oct 2025576 PMAQI
21st Oct 2025577 PMAQI
21st Oct 2025588 PMAQI
21st Oct 2025599 PMAQI
21st Oct 20255810 PMAQI
21st Oct 20255011 PMAQI
22nd Oct 20255412 AMAQI
22nd Oct 2025531 AMAQI
22nd Oct 2025552 AMAQI
22nd Oct 2025573 AMAQI
22nd Oct 2025584 AMAQI
22nd Oct 2025585 AMAQI
9°C7/13°C
22nd Oct 2025616 AMAQI
22nd Oct 2025627 AMAQI
22nd Oct 2025618 AMAQI
22nd Oct 2025679 AMAQI
22nd Oct 20256610 AMAQI
22nd Oct 20256511 AMAQI
22nd Oct 20257312 PMAQI
22nd Oct 2025771 PMAQI
22nd Oct 2025692 PMAQI
22nd Oct 2025613 PMAQI
22nd Oct 2025614 PMAQI
22nd Oct 2025565 PMAQI
22nd Oct 2025526 PMAQI
22nd Oct 2025507 PMAQI
22nd Oct 2025558 PMAQI
22nd Oct 2025649 PMAQI
22nd Oct 20256410 PMAQI
22nd Oct 20256811 PMAQI
23rd Oct 20257412 AMAQI
23rd Oct 2025711 AMAQI
23rd Oct 2025672 AMAQI
23rd Oct 2025593 AMAQI
23rd Oct 2025534 AMAQI
23rd Oct 2025505 AMAQI
11°C6/17°C
23rd Oct 2025466 AMAQI
23rd Oct 2025467 AMAQI
23rd Oct 2025488 AMAQI
23rd Oct 2025509 AMAQI
23rd Oct 20255410 AMAQI
23rd Oct 20256011 AMAQI
23rd Oct 20256012 PMAQI
23rd Oct 2025551 PMAQI
23rd Oct 2025462 PMAQI
23rd Oct 2025373 PMAQI
23rd Oct 2025344 PMAQI
23rd Oct 2025385 PMAQI
23rd Oct 2025376 PMAQI
23rd Oct 2025447 PMAQI
23rd Oct 2025518 PMAQI
23rd Oct 2025539 PMAQI
23rd Oct 20255210 PMAQI
23rd Oct 20255411 PMAQI
24th Oct 20255212 AMAQI
24th Oct 2025481 AMAQI
24th Oct 2025492 AMAQI
24th Oct 2025503 AMAQI
24th Oct 2025514 AMAQI
24th Oct 2025525 AMAQI
14°C9/20°C
24th Oct 2025496 AMAQI
24th Oct 2025517 AMAQI
24th Oct 2025418 AMAQI
24th Oct 2025399 AMAQI
24th Oct 20254110 AMAQI
24th Oct 20254811 AMAQI
24th Oct 20254712 PMAQI
24th Oct 2025461 PMAQI
24th Oct 2025412 PMAQI
24th Oct 2025293 PMAQI
24th Oct 2025284 PMAQI
24th Oct 2025275 PMAQI
24th Oct 2025306 PMAQI
24th Oct 2025287 PMAQI
24th Oct 2025308 PMAQI
24th Oct 2025409 PMAQI
24th Oct 20255110 PMAQI
24th Oct 20255711 PMAQI
25th Oct 20255712 AMAQI
25th Oct 2025621 AMAQI
25th Oct 2025642 AMAQI
25th Oct 2025643 AMAQI
25th Oct 2025644 AMAQI
25th Oct 2025645 AMAQI
14°C10/19°C
25th Oct 2025626 AMAQI
25th Oct 2025617 AMAQI
25th Oct 2025658 AMAQI
25th Oct 2025659 AMAQI
25th Oct 20257310 AMAQI
25th Oct 20257711 AMAQI
25th Oct 20257612 PMAQI
25th Oct 2025751 PMAQI
25th Oct 2025712 PMAQI
25th Oct 2025503 PMAQI
25th Oct 2025444 PMAQI
25th Oct 2025425 PMAQI
25th Oct 2025486 PMAQI
25th Oct 2025437 PMAQI
25th Oct 2025398 PMAQI
25th Oct 2025599 PMAQI
25th Oct 20256310 PMAQI
25th Oct 20256511 PMAQI
26th Oct 20257112 AMAQI
26th Oct 2025731 AMAQI
26th Oct 2025722 AMAQI
26th Oct 2025713 AMAQI
26th Oct 2025694 AMAQI
26th Oct 2025695 AMAQI
13°C10/17°C
26th Oct 2025756 AMAQI
26th Oct 2025757 AMAQI
26th Oct 2025728 AMAQI
26th Oct 2025749 AMAQI
26th Oct 20258110 AMAQI
26th Oct 20259311 AMAQI
26th Oct 20259112 PMAQI
26th Oct 2025701 PMAQI
26th Oct 2025612 PMAQI
26th Oct 2025643 PMAQI
26th Oct 2025624 PMAQI
26th Oct 2025705 PMAQI
26th Oct 2025746 PMAQI
26th Oct 2025787 PMAQI
26th Oct 2025828 PMAQI
26th Oct 2025879 PMAQI
26th Oct 20258710 PMAQI
26th Oct 20259311 PMAQI
27th Oct 20259612 AMAQI
27th Oct 2025911 AMAQI
27th Oct 2025982 AMAQI
27th Oct 2025983 AMAQI
27th Oct 2025824 AMAQI
27th Oct 2025505 AMAQI
12°C10/17°C
27th Oct 2025496 AMAQI
27th Oct 2025387 AMAQI
27th Oct 2025298 AMAQI
27th Oct 2025309 AMAQI
27th Oct 20253110 AMAQI
27th Oct 20253311 AMAQI
27th Oct 20253212 PMAQI
27th Oct 2025301 PMAQI
27th Oct 2025292 PMAQI
27th Oct 2025253 PMAQI
27th Oct 2025264 PMAQI
27th Oct 2025285 PMAQI
27th Oct 2025246 PMAQI
27th Oct 2025267 PMAQI
27th Oct 2025288 PMAQI
27th Oct 2025309 PMAQI
27th Oct 20253210 PMAQI
27th Oct 20253511 PMAQI
28th Oct 20252912 AMAQI
28th Oct 2025261 AMAQI
28th Oct 2025332 AMAQI
28th Oct 2025383 AMAQI
28th Oct 2025414 AMAQI
28th Oct 2025445 AMAQI
9°C5/12°C
28th Oct 2025436 AMAQI
28th Oct 2025317 AMAQI
28th Oct 2025318 AMAQI
28th Oct 2025389 AMAQI
28th Oct 20254810 AMAQI
28th Oct 20255511 AMAQI
28th Oct 20255312 PMAQI
28th Oct 2025511 PMAQI
28th Oct 2025472 PMAQI
28th Oct 2025493 PMAQI
28th Oct 2025544 PMAQI
28th Oct 2025585 PMAQI
28th Oct 2025566 PMAQI
28th Oct 2025567 PMAQI
28th Oct 2025588 PMAQI
28th Oct 2025649 PMAQI
28th Oct 20256710 PMAQI
28th Oct 20256911 PMAQI
29th Oct 20256912 AMAQI
29th Oct 2025681 AMAQI
29th Oct 2025692 AMAQI
29th Oct 2025713 AMAQI
29th Oct 2025664 AMAQI
29th Oct 2025655 AMAQI
7°C3/12°C
29th Oct 2025636 AMAQI
29th Oct 2025637 AMAQI
29th Oct 2025648 AMAQI
29th Oct 2025679 AMAQI
29th Oct 20257110 AMAQI
29th Oct 20258311 AMAQI
29th Oct 20258212 PMAQI
29th Oct 2025741 PMAQI
29th Oct 2025652 PMAQI
29th Oct 2025653 PMAQI
29th Oct 2025644 PMAQI
29th Oct 2025635 PMAQI
29th Oct 2025616 PMAQI
29th Oct 2025687 PMAQI
29th Oct 2025778 PMAQI
29th Oct 2025809 PMAQI
29th Oct 20259210 PMAQI
29th Oct 20259111 PMAQI
30th Oct 20258412 AMAQI
30th Oct 2025831 AMAQI
30th Oct 2025812 AMAQI
30th Oct 2025803 AMAQI
30th Oct 2025804 AMAQI
30th Oct 2025805 AMAQI
9°C4/16°C
30th Oct 2025786 AMAQI
30th Oct 2025737 AMAQI
30th Oct 2025728 AMAQI
30th Oct 2025739 AMAQI
30th Oct 20257410 AMAQI
30th Oct 20258411 AMAQI
30th Oct 20258612 PMAQI
30th Oct 2025771 PMAQI
30th Oct 2025792 PMAQI
30th Oct 2025763 PMAQI
30th Oct 2025764 PMAQI
30th Oct 2025785 PMAQI
30th Oct 2025756 PMAQI
30th Oct 2025777 PMAQI
30th Oct 2025838 PMAQI
30th Oct 2025939 PMAQI
30th Oct 202510910 PMAQI
30th Oct 202511711 PMAQI
31st Oct 202512512 AMAQI
31st Oct 20251301 AMAQI
31st Oct 20251282 AMAQI
31st Oct 20251243 AMAQI
31st Oct 20251264 AMAQI
31st Oct 20251245 AMAQI
11°C7/16°C
31st Oct 20251136 AMAQI
31st Oct 20251137 AMAQI
31st Oct 20251158 AMAQI
31st Oct 20251149 AMAQI
31st Oct 202512410 AMAQI
31st Oct 202513711 AMAQI
31st Oct 202513812 PMAQI
31st Oct 20251521 PMAQI
31st Oct 20251522 PMAQI
31st Oct 20251413 PMAQI
31st Oct 20251174 PMAQI
31st Oct 20251125 PMAQI
31st Oct 20251166 PMAQI
31st Oct 20251167 PMAQI
31st Oct 20251228 PMAQI
31st Oct 20251219 PMAQI
31st Oct 202512710 PMAQI
31st Oct 202512811 PMAQI
1st Nov 202512712 AMAQI
1st Nov 20251321 AMAQI
1st Nov 20251322 AMAQI
1st Nov 20251193 AMAQI
1st Nov 2025944 AMAQI
1st Nov 2025785 AMAQI
13°C10/18°C
1st Nov 2025636 AMAQI
1st Nov 2025587 AMAQI
1st Nov 2025538 AMAQI
1st Nov 2025469 AMAQI
1st Nov 20254410 AMAQI
1st Nov 20255111 AMAQI
1st Nov 20255012 PMAQI
1st Nov 2025481 PMAQI
1st Nov 2025502 PMAQI
1st Nov 2025463 PMAQI
1st Nov 2025454 PMAQI
1st Nov 2025445 PMAQI
1st Nov 2025446 PMAQI
1st Nov 2025527 PMAQI
1st Nov 2025658 PMAQI
1st Nov 2025709 PMAQI
1st Nov 20257410 PMAQI
1st Nov 20258211 PMAQI
2nd Nov 20258112 AMAQI
2nd Nov 2025811 AMAQI
2nd Nov 2025632 AMAQI
2nd Nov 2025593 AMAQI
2nd Nov 2025574 AMAQI
2nd Nov 2025515 AMAQI
12°C9/15°C
2nd Nov 2025466 AMAQI
2nd Nov 2025447 AMAQI
2nd Nov 2025458 AMAQI
2nd Nov 2025489 AMAQI
2nd Nov 20254810 AMAQI
2nd Nov 20254911 AMAQI
2nd Nov 20255012 PMAQI
2nd Nov 2025481 PMAQI
2nd Nov 2025472 PMAQI
2nd Nov 2025433 PMAQI
2nd Nov 2025394 PMAQI
2nd Nov 2025375 PMAQI
2nd Nov 2025386 PMAQI
2nd Nov 2025347 PMAQI
2nd Nov 2025368 PMAQI
2nd Nov 2025359 PMAQI
2nd Nov 20253310 PMAQI
2nd Nov 20253211 PMAQI
3rd Nov 20253512 AMAQI
3rd Nov 2025341 AMAQI
3rd Nov 2025342 AMAQI
3rd Nov 2025293 AMAQI
3rd Nov 2025254 AMAQI
3rd Nov 2025265 AMAQI
9°C5/11°C
3rd Nov 2025326 AMAQI
3rd Nov 2025317 AMAQI
3rd Nov 2025378 AMAQI
3rd Nov 2025459 AMAQI
3rd Nov 20255210 AMAQI
3rd Nov 20255311 AMAQI
3rd Nov 20255812 PMAQI
3rd Nov 2025641 PMAQI
3rd Nov 2025662 PMAQI
3rd Nov 2025663 PMAQI
3rd Nov 2025664 PMAQI
3rd Nov 2025645 PMAQI
3rd Nov 2025636 PMAQI
3rd Nov 2025597 PMAQI
3rd Nov 2025618 PMAQI
3rd Nov 2025669 PMAQI
3rd Nov 20257010 PMAQI
3rd Nov 20257011 PMAQI
4th Nov 20257112 AMAQI
4th Nov 2025741 AMAQI
4th Nov 2025782 AMAQI
4th Nov 2025823 AMAQI
4th Nov 2025754 AMAQI
4th Nov 2025765 AMAQI
6°C1/12°C
4th Nov 2025776 AMAQI
4th Nov 2025737 AMAQI
4th Nov 2025738 AMAQI
4th Nov 2025729 AMAQI
4th Nov 20257510 AMAQI
4th Nov 20257811 AMAQI
4th Nov 20257712 PMAQI
4th Nov 2025671 PMAQI
4th Nov 2025582 PMAQI
4th Nov 2025643 PMAQI
4th Nov 2025634 PMAQI
4th Nov 2025575 PMAQI
4th Nov 2025566 PMAQI
4th Nov 2025597 PMAQI
4th Nov 2025708 PMAQI
4th Nov 2025789 PMAQI
4th Nov 20258910 PMAQI
4th Nov 20259911 PMAQI
5th Nov 202510612 AMAQI
5th Nov 20251021 AMAQI
5th Nov 20251082 AMAQI
5th Nov 20251063 AMAQI
5th Nov 20251084 AMAQI
5th Nov 20251045 AMAQI
8°C4/14°C
5th Nov 20251036 AMAQI
5th Nov 20251037 AMAQI
5th Nov 20251028 AMAQI
5th Nov 2025969 AMAQI
5th Nov 202510710 AMAQI
5th Nov 202511411 AMAQI
5th Nov 202512212 PMAQI
5th Nov 20251341 PMAQI
5th Nov 20251482 PMAQI
5th Nov 20251423 PMAQI
5th Nov 20251364 PMAQI
5th Nov 20251365 PMAQI
5th Nov 20251236 PMAQI
5th Nov 20251257 PMAQI
5th Nov 20251258 PMAQI
5th Nov 20251269 PMAQI
5th Nov 202512410 PMAQI
5th Nov 202511811 PMAQI
6th Nov 202512112 AMAQI
6th Nov 20251261 AMAQI
6th Nov 20251192 AMAQI
6th Nov 20251163 AMAQI
6th Nov 20251144 AMAQI
6th Nov 20251135 AMAQI
10°C6/17°C
6th Nov 20251076 AMAQI
6th Nov 20251047 AMAQI
6th Nov 20251048 AMAQI
6th Nov 20251059 AMAQI
6th Nov 202510610 AMAQI
6th Nov 202511011 AMAQI
6th Nov 202512812 PMAQI
6th Nov 20251421 PMAQI
6th Nov 20251452 PMAQI
6th Nov 20251473 PMAQI
6th Nov 20251464 PMAQI
6th Nov 20251385 PMAQI
6th Nov 20251366 PMAQI
6th Nov 20251317 PMAQI
6th Nov 20251308 PMAQI
6th Nov 20251339 PMAQI
6th Nov 202513410 PMAQI
6th Nov 202513511 PMAQI
7th Nov 202513912 AMAQI
7th Nov 20251381 AMAQI
7th Nov 20251402 AMAQI
7th Nov 20251383 AMAQI
7th Nov 20251354 AMAQI
7th Nov 20251315 AMAQI
12°C7/17°C
7th Nov 20251236 AMAQI
7th Nov 20251247 AMAQI
7th Nov 20251298 AMAQI
7th Nov 20251269 AMAQI
7th Nov 202512810 AMAQI
7th Nov 202513311 AMAQI
7th Nov 202513812 PMAQI
7th Nov 20251521 PMAQI
7th Nov 20251562 PMAQI
7th Nov 20251553 PMAQI
7th Nov 20251534 PMAQI
7th Nov 20251495 PMAQI
7th Nov 20251466 PMAQI
7th Nov 20251367 PMAQI
7th Nov 20251438 PMAQI
7th Nov 20251429 PMAQI
7th Nov 202514410 PMAQI
7th Nov 202514311 PMAQI
8th Nov 202514612 AMAQI
8th Nov 20251371 AMAQI
8th Nov 20251382 AMAQI
8th Nov 20251363 AMAQI
8th Nov 20251384 AMAQI
8th Nov 20251385 AMAQI
13°C9/19°C
8th Nov 20251256 AMAQI
8th Nov 20251257 AMAQI
8th Nov 20251228 AMAQI
8th Nov 20251209 AMAQI
8th Nov 202511510 AMAQI
8th Nov 202511211 AMAQI
8th Nov 202510812 PMAQI
8th Nov 20251051 PMAQI
8th Nov 2025992 PMAQI
8th Nov 2025963 PMAQI
8th Nov 2025924 PMAQI
8th Nov 2025795 PMAQI
8th Nov 2025766 PMAQI
8th Nov 2025807 PMAQI
8th Nov 2025838 PMAQI
8th Nov 2025879 PMAQI
8th Nov 20259310 PMAQI
8th Nov 20259611 PMAQI
9th Nov 20259812 AMAQI
9th Nov 20251081 AMAQI
9th Nov 20251102 AMAQI
9th Nov 20251133 AMAQI
9th Nov 20251124 AMAQI
9th Nov 20251055 AMAQI
13°C10/16°C
9th Nov 20251036 AMAQI
9th Nov 2025917 AMAQI
9th Nov 2025918 AMAQI
9th Nov 2025879 AMAQI
9th Nov 20258910 AMAQI
9th Nov 20259711 AMAQI
9th Nov 202510612 PMAQI
9th Nov 2025831 PMAQI
9th Nov 2025732 PMAQI
9th Nov 2025693 PMAQI
9th Nov 2025724 PMAQI
9th Nov 2025715 PMAQI
9th Nov 2025716 PMAQI
9th Nov 2025717 PMAQI
9th Nov 2025798 PMAQI
9th Nov 2025849 PMAQI
9th Nov 20258510 PMAQI
9th Nov 20258711 PMAQI
10th Nov 20258812 AMAQI
10th Nov 2025771 AMAQI
10th Nov 2025562 AMAQI
10th Nov 2025443 AMAQI
10th Nov 2025434 AMAQI
10th Nov 2025395 AMAQI
13°C9/17°C
10th Nov 2025216 AMAQI
10th Nov 2025227 AMAQI
10th Nov 2025258 AMAQI
10th Nov 2025259 AMAQI
10th Nov 20253310 AMAQI
10th Nov 20253911 AMAQI
10th Nov 20254512 PMAQI
10th Nov 2025411 PMAQI
10th Nov 2025292 PMAQI
10th Nov 2025243 PMAQI
10th Nov 2025204 PMAQI
10th Nov 2025185 PMAQI
10th Nov 2025156 PMAQI
10th Nov 2025167 PMAQI
10th Nov 2025228 PMAQI
10th Nov 2025259 PMAQI
10th Nov 20252510 PMAQI
10th Nov 20253911 PMAQI
11th Nov 20254412 AMAQI
11th Nov 2025441 AMAQI
11th Nov 2025452 AMAQI
11th Nov 2025503 AMAQI
11th Nov 2025504 AMAQI
11th Nov 2025445 AMAQI
8°C6/11°C
11th Nov 2025456 AMAQI
11th Nov 2025407 AMAQI
11th Nov 2025468 AMAQI
11th Nov 2025549 AMAQI
11th Nov 20255510 AMAQI
11th Nov 20255311 AMAQI
11th Nov 20254212 PMAQI
11th Nov 2025461 PMAQI
11th Nov 2025472 PMAQI
11th Nov 2025483 PMAQI
11th Nov 2025544 PMAQI
11th Nov 2025585 PMAQI
11th Nov 2025596 PMAQI
11th Nov 2025557 PMAQI
11th Nov 2025568 PMAQI
11th Nov 2025619 PMAQI
11th Nov 20256710 PMAQI
11th Nov 20257211 PMAQI
12th Nov 20258212 AMAQI
12th Nov 2025861 AMAQI
12th Nov 2025832 AMAQI
12th Nov 2025803 AMAQI
12th Nov 2025794 AMAQI
12th Nov 2025725 AMAQI
8°C4/13°C
12th Nov 2025736 AMAQI
12th Nov 2025727 AMAQI
12th Nov 2025758 AMAQI
12th Nov 2025769 AMAQI
12th Nov 20257710 AMAQI
12th Nov 20258011 AMAQI
12th Nov 20258412 PMAQI
12th Nov 2025911 PMAQI
12th Nov 2025892 PMAQI
12th Nov 2025843 PMAQI
12th Nov 2025834 PMAQI
12th Nov 2025785 PMAQI
12th Nov 2025786 PMAQI
12th Nov 2025817 PMAQI
12th Nov 2025878 PMAQI
12th Nov 20251049 PMAQI
12th Nov 202511910 PMAQI
12th Nov 202511811 PMAQI
13th Nov 202511812 AMAQI
13th Nov 20251171 AMAQI
13th Nov 20251242 AMAQI
13th Nov 20251103 AMAQI
13th Nov 20251054 AMAQI
13th Nov 2025985 AMAQI
9°C5/15°C
13th Nov 2025936 AMAQI
13th Nov 2025937 AMAQI
13th Nov 2025898 AMAQI
13th Nov 2025869 AMAQI
13th Nov 20258610 AMAQI
13th Nov 20258311 AMAQI
13th Nov 20257812 PMAQI
13th Nov 2025751 PMAQI
13th Nov 2025802 PMAQI
13th Nov 20251013 PMAQI
13th Nov 2025754 PMAQI
13th Nov 2025745 PMAQI
13th Nov 2025776 PMAQI
13th Nov 2025747 PMAQI
13th Nov 2025798 PMAQI
13th Nov 2025769 PMAQI
13th Nov 20257210 PMAQI
13th Nov 20256511 PMAQI
14th Nov 20256612 AMAQI
14th Nov 2025681 AMAQI
14th Nov 2025602 AMAQI
14th Nov 2025543 AMAQI
14th Nov 2025594 AMAQI
14th Nov 2025595 AMAQI
10°C7/17°C
14th Nov 2025596 AMAQI
14th Nov 2025507 AMAQI
14th Nov 2025488 AMAQI
14th Nov 2025479 AMAQI
14th Nov 20255310 AMAQI
14th Nov 20255911 AMAQI
14th Nov 20256412 PMAQI
14th Nov 2025601 PMAQI
14th Nov 2025482 PMAQI
14th Nov 2025443 PMAQI
14th Nov 2025534 PMAQI
14th Nov 2025455 PMAQI
14th Nov 2025476 PMAQI
14th Nov 2025537 PMAQI
14th Nov 2025618 PMAQI
14th Nov 2025679 PMAQI
14th Nov 20256710 PMAQI
14th Nov 20256911 PMAQI
15th Nov 20256812 AMAQI
15th Nov 2025691 AMAQI
15th Nov 2025722 AMAQI
15th Nov 2025733 AMAQI
15th Nov 2025704 AMAQI
15th Nov 2025695 AMAQI
--°C/°C
6 AM
11 AM
5 PM
11 PM
5 AM
--°C/°C
Day time
Avg. Highest Time
11 AM - 2 PM
74AQI
4 hours / Day
120 hours / Month
Avg. Lowest Time
7 AM - 9 AM
65AQI
3 hours / Day
90 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 11 AM to 2 PM (Avg. 74), while the lowest AQI was between 7 AM to 9 AM (Avg. 65).
Night time
Avg. Highest Time
12 AM - 4 AM
77AQI
5 hours / Day
150 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 4 AM (Avg. 77), while the lowest AQI was between 6 PM to 7 PM (Avg. 65).
2025 Days Vs Air Quality
Hongseong, Chungnam, South Korea
2025
31%
99
62%
197
7%
21
Total number of days with different AQI categories in last 318 days in 2025 (47 days remaining)
Good
99 DaysModerate
197 DaysPoor
21 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 31%
Health Risk Level:
High
In 2025, 31% of 318 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
Hongseong, 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.
-1th undefined 2025
-1th undefined 2025
-1th undefined 2025
1st January 2025
72AQI
72AQI
2nd January 2025
60AQI
60AQI
3rd January 2025
58AQI
58AQI
4th January 2025
58AQI
58AQI
5th January 2025
66AQI
66AQI
6th January 2025
78AQI
78AQI
7th January 2025
54AQI
54AQI
8th January 2025
60AQI
60AQI
9th January 2025
39AQI
39AQI
10th January 2025
59AQI
59AQI
11th January 2025
62AQI
62AQI
12th January 2025
78AQI
78AQI
13th January 2025
84AQI
84AQI
14th January 2025
90AQI
90AQI
15th January 2025
53AQI
53AQI
16th January 2025
66AQI
66AQI
17th January 2025
73AQI
73AQI
18th January 2025
73AQI
73AQI
19th January 2025
75AQI
75AQI
20th January 2025
115AQI
115AQI
21st January 2025
125AQI
125AQI
22nd January 2025
132AQI
132AQI
23rd January 2025
110AQI
110AQI
24th January 2025
118AQI
118AQI
25th January 2025
85AQI
85AQI
26th January 2025
63AQI
63AQI
27th January 2025
64AQI
64AQI
28th January 2025
51AQI
51AQI
29th January 2025
52AQI
52AQI
30th January 2025
57AQI
57AQI
31st January 2025
77AQI
77AQI
1st February 2025
101AQI
101AQI
2nd February 2025
101AQI
101AQI
3rd February 2025
58AQI
58AQI
4th February 2025
51AQI
51AQI
5th February 2025
44AQI
44AQI
6th February 2025
52AQI
52AQI
7th February 2025
45AQI
45AQI
8th February 2025
41AQI
41AQI
9th February 2025
50AQI
50AQI
10th February 2025
56AQI
56AQI
11th February 2025
76AQI
76AQI
12th February 2025
66AQI
66AQI
13th February 2025
51AQI
51AQI
14th February 2025
75AQI
75AQI
15th February 2025
57AQI
57AQI
16th February 2025
106AQI
106AQI
17th February 2025
50AQI
50AQI
18th February 2025
58AQI
58AQI
19th February 2025
45AQI
45AQI
20th February 2025
51AQI
51AQI
21st February 2025
51AQI
51AQI
22nd February 2025
56AQI
56AQI
23rd February 2025
51AQI
51AQI
24th February 2025
50AQI
50AQI
25th February 2025
51AQI
51AQI
26th February 2025
74AQI
74AQI
27th February 2025
58AQI
58AQI
28th February 2025
76AQI
76AQI
1st March 2025
106AQI
106AQI
2nd March 2025
82AQI
82AQI
3rd March 2025
56AQI
56AQI
4th March 2025
47AQI
47AQI
5th March 2025
41AQI
41AQI
6th March 2025
75AQI
75AQI
7th March 2025
82AQI
82AQI
8th March 2025
84AQI
84AQI
9th March 2025
110AQI
110AQI
10th March 2025
105AQI
105AQI
11th March 2025
103AQI
103AQI
12th March 2025
96AQI
96AQI
13th March 2025
86AQI
86AQI
14th March 2025
84AQI
84AQI
15th March 2025
59AQI
59AQI
16th March 2025
72AQI
72AQI
17th March 2025
63AQI
63AQI
18th March 2025
80AQI
80AQI
19th March 2025
80AQI
80AQI
20th March 2025
95AQI
95AQI
21st March 2025
98AQI
98AQI
22nd March 2025
111AQI
111AQI
23rd March 2025
117AQI
117AQI
24th March 2025
114AQI
114AQI
25th March 2025
129AQI
129AQI
26th March 2025
93AQI
93AQI
27th March 2025
91AQI
91AQI
28th March 2025
57AQI
57AQI
29th March 2025
49AQI
49AQI
30th March 2025
48AQI
48AQI
31st March 2025
63AQI
63AQI
1st April 2025
74AQI
74AQI
2nd April 2025
79AQI
79AQI
3rd April 2025
86AQI
86AQI
4th April 2025
81AQI
81AQI
5th April 2025
76AQI
76AQI
6th April 2025
66AQI
66AQI
7th April 2025
73AQI
73AQI
8th April 2025
75AQI
75AQI
9th April 2025
67AQI
67AQI
10th April 2025
74AQI
74AQI
11th April 2025
83AQI
83AQI
12th April 2025
65AQI
65AQI
13th April 2025
63AQI
63AQI
14th April 2025
45AQI
45AQI
15th April 2025
60AQI
60AQI
16th April 2025
62AQI
62AQI
17th April 2025
71AQI
71AQI
18th April 2025
83AQI
83AQI
19th April 2025
49AQI
49AQI
20th April 2025
71AQI
71AQI
21st April 2025
58AQI
58AQI
22nd April 2025
48AQI
48AQI
23rd April 2025
44AQI
44AQI
24th April 2025
65AQI
65AQI
25th April 2025
58AQI
58AQI
26th April 2025
50AQI
50AQI
27th April 2025
40AQI
40AQI
28th April 2025
58AQI
58AQI
29th April 2025
63AQI
63AQI
30th April 2025
57AQI
57AQI
1st May 2025
57AQI
57AQI
2nd May 2025
51AQI
51AQI
3rd May 2025
53AQI
53AQI
4th May 2025
47AQI
47AQI
5th May 2025
51AQI
51AQI
6th May 2025
48AQI
48AQI
7th May 2025
52AQI
52AQI
8th May 2025
60AQI
60AQI
9th May 2025
50AQI
50AQI
10th May 2025
60AQI
60AQI
11th May 2025
70AQI
70AQI
12th May 2025
69AQI
69AQI
13th May 2025
74AQI
74AQI
14th May 2025
71AQI
71AQI
15th May 2025
57AQI
57AQI
16th May 2025
50AQI
50AQI
17th May 2025
41AQI
41AQI
18th May 2025
58AQI
58AQI
19th May 2025
58AQI
58AQI
20th May 2025
38AQI
38AQI
21st May 2025
50AQI
50AQI
22nd May 2025
52AQI
52AQI
23rd May 2025
58AQI
58AQI
24th May 2025
54AQI
54AQI
25th May 2025
49AQI
49AQI
26th May 2025
64AQI
64AQI
27th May 2025
70AQI
70AQI
28th May 2025
74AQI
74AQI
29th May 2025
79AQI
79AQI
30th May 2025
82AQI
82AQI
31st May 2025
87AQI
87AQI
1st June 2025
85AQI
85AQI
2nd June 2025
97AQI
97AQI
3rd June 2025
74AQI
74AQI
4th June 2025
61AQI
61AQI
5th June 2025
55AQI
55AQI
6th June 2025
59AQI
59AQI
7th June 2025
68AQI
68AQI
8th June 2025
61AQI
61AQI
9th June 2025
64AQI
64AQI
10th June 2025
55AQI
55AQI
11th June 2025
54AQI
54AQI
12th June 2025
59AQI
59AQI
13th June 2025
66AQI
66AQI
14th June 2025
55AQI
55AQI
15th June 2025
59AQI
59AQI
16th June 2025
62AQI
62AQI
17th June 2025
62AQI
62AQI
18th June 2025
63AQI
63AQI
19th June 2025
64AQI
64AQI
20th June 2025
50AQI
50AQI
21st June 2025
48AQI
48AQI
22nd June 2025
47AQI
47AQI
23rd June 2025
55AQI
55AQI
24th June 2025
57AQI
57AQI
25th June 2025
46AQI
46AQI
26th June 2025
49AQI
49AQI
27th June 2025
61AQI
61AQI
28th June 2025
56AQI
56AQI
29th June 2025
48AQI
48AQI
30th June 2025
47AQI
47AQI
1st July 2025
45AQI
45AQI
2nd July 2025
49AQI
49AQI
3rd July 2025
53AQI
53AQI
4th July 2025
50AQI
50AQI
5th July 2025
49AQI
49AQI
6th July 2025
50AQI
50AQI
7th July 2025
59AQI
59AQI
8th July 2025
63AQI
63AQI
9th July 2025
54AQI
54AQI
10th July 2025
53AQI
53AQI
11th July 2025
54AQI
54AQI
12th July 2025
53AQI
53AQI
13th July 2025
62AQI
62AQI
14th July 2025
59AQI
59AQI
15th July 2025
47AQI
47AQI
16th July 2025
53AQI
53AQI
17th July 2025
44AQI
44AQI
18th July 2025
47AQI
47AQI
19th July 2025
40AQI
40AQI
20th July 2025
46AQI
46AQI
21st July 2025
44AQI
44AQI
22nd July 2025
41AQI
41AQI
23rd July 2025
48AQI
48AQI
24th July 2025
54AQI
54AQI
25th July 2025
63AQI
63AQI
26th July 2025
58AQI
58AQI
27th July 2025
50AQI
50AQI
28th July 2025
57AQI
57AQI
29th July 2025
62AQI
62AQI
30th July 2025
63AQI
63AQI
31st July 2025
58AQI
58AQI
1st August 2025
58AQI
58AQI
2nd August 2025
61AQI
61AQI
3rd August 2025
61AQI
61AQI
4th August 2025
53AQI
53AQI
5th August 2025
51AQI
51AQI
6th August 2025
50AQI
50AQI
7th August 2025
49AQI
49AQI
8th August 2025
53AQI
53AQI
9th August 2025
55AQI
55AQI
10th August 2025
55AQI
55AQI
11th August 2025
57AQI
57AQI
12th August 2025
50AQI
50AQI
13th August 2025
41AQI
41AQI
14th August 2025
41AQI
41AQI
15th August 2025
40AQI
40AQI
16th August 2025
38AQI
38AQI
17th August 2025
42AQI
42AQI
18th August 2025
51AQI
51AQI
19th August 2025
45AQI
45AQI
20th August 2025
46AQI
46AQI
21st August 2025
48AQI
48AQI
22nd August 2025
47AQI
47AQI
23rd August 2025
49AQI
49AQI
24th August 2025
52AQI
52AQI
25th August 2025
48AQI
48AQI
26th August 2025
43AQI
43AQI
27th August 2025
50AQI
50AQI
28th August 2025
52AQI
52AQI
29th August 2025
46AQI
46AQI
30th August 2025
45AQI
45AQI
31st August 2025
48AQI
48AQI
1st September 2025
41AQI
41AQI
2nd September 2025
48AQI
48AQI
3rd September 2025
51AQI
51AQI
4th September 2025
48AQI
48AQI
5th September 2025
45AQI
45AQI
6th September 2025
40AQI
40AQI
7th September 2025
41AQI
41AQI
8th September 2025
48AQI
48AQI
9th September 2025
51AQI
51AQI
10th September 2025
51AQI
51AQI
11th September 2025
52AQI
52AQI
12th September 2025
48AQI
48AQI
13th September 2025
43AQI
43AQI
14th September 2025
44AQI
44AQI
15th September 2025
48AQI
48AQI
16th September 2025
43AQI
43AQI
17th September 2025
38AQI
38AQI
18th September 2025
45AQI
45AQI
19th September 2025
37AQI
37AQI
20th September 2025
32AQI
32AQI
21st September 2025
32AQI
32AQI
22nd September 2025
30AQI
30AQI
23rd September 2025
32AQI
32AQI
24th September 2025
32AQI
32AQI
25th September 2025
45AQI
45AQI
26th September 2025
67AQI
67AQI
27th September 2025
61AQI
61AQI
28th September 2025
51AQI
51AQI
29th September 2025
47AQI
47AQI
30th September 2025
54AQI
54AQI
1st October 2025
65AQI
65AQI
2nd October 2025
67AQI
67AQI
3rd October 2025
61AQI
61AQI
4th October 2025
43AQI
43AQI
5th October 2025
57AQI
57AQI
6th October 2025
55AQI
55AQI
7th October 2025
39AQI
39AQI
8th October 2025
48AQI
48AQI
9th October 2025
51AQI
51AQI
10th October 2025
51AQI
51AQI
11th October 2025
60AQI
60AQI
12th October 2025
54AQI
54AQI
13th October 2025
43AQI
43AQI
14th October 2025
46AQI
46AQI
15th October 2025
48AQI
48AQI
16th October 2025
45AQI
45AQI
17th October 2025
53AQI
53AQI
18th October 2025
54AQI
54AQI
19th October 2025
59AQI
59AQI
20th October 2025
59AQI
59AQI
21st October 2025
57AQI
57AQI
22nd October 2025
60AQI
60AQI
23rd October 2025
55AQI
55AQI
24th October 2025
45AQI
45AQI
25th October 2025
60AQI
60AQI
26th October 2025
76AQI
76AQI
27th October 2025
53AQI
53AQI
28th October 2025
47AQI
47AQI
29th October 2025
72AQI
72AQI
30th October 2025
84AQI
84AQI
31st October 2025
126AQI
126AQI
1st November 2025
81AQI
81AQI
2nd November 2025
52AQI
52AQI
3rd November 2025
49AQI
49AQI
4th November 2025
73AQI
73AQI
5th November 2025
117AQI
117AQI
6th November 2025
125AQI
125AQI
7th November 2025
140AQI
140AQI
8th November 2025
114AQI
114AQI
9th November 2025
92AQI
92AQI
10th November 2025
42AQI
42AQI
11th November 2025
51AQI
51AQI
12th November 2025
85AQI
85AQI
13th November 2025
93AQI
93AQI
14th November 2025
15th November 2025
16th November 2025
17th November 2025
18th November 2025
19th November 2025
20th November 2025
21st November 2025
22nd November 2025
23rd November 2025
24th November 2025
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
74AQI
61AQI
83AQI
65AQI
59AQI
60AQI
53AQI
49AQI
45AQI
58AQI
86AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202562AQI
1
25
5
7
18
3
4
19
8
6
24
8
23
7
23
14
17
19
12
22
8
9
21
1
2
7
4
99
197
21
Highest AQI recorded in
November86AQI
Lowest AQI recorded in
September45AQI
202465AQI
7
15
9
7
14
7
1
6
21
3
1
1
26
3
6
22
3
1
29
21
10
7
24
22
8
11
19
1
9
17
4
9
22
107
227
30
2
Highest AQI recorded in
January82AQI
Lowest AQI recorded in
July43AQI
202367AQI
7
16
6
2
3
16
6
3
5
16
10
1
22
6
1
7
23
1
3
27
14
17
11
20
12
18
13
18
12
15
2
7
17
6
1
95
225
37
7
Highest AQI recorded in
February91AQI
Lowest AQI recorded in
September52AQI
202269AQI
3
22
4
2
3
12
5
2
5
19
7
5
23
2
6
24
1
15
15
7
17
3
16
13
11
15
5
3
20
7
6
22
3
83
202
34
4
Highest AQI recorded in
February86AQI
Lowest AQI recorded in
August42AQI
202170AQI
4
20
7
3
15
6
4
1
16
11
1
1
1
3
25
2
5
23
1
2
5
25
16
15
14
17
25
5
9
22
7
20
3
11
9
11
103
212
41
5
3
1
Highest AQI recorded in
March110AQI
Lowest AQI recorded in
September41AQI
202065AQI
3
8
2
21
2
15
1
5
25
16
15
18
13
17
13
7
21
3
6
16
7
1
4
18
8
1
78
165
21
2
Highest AQI recorded in
December85AQI
Lowest AQI recorded in
September48AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2021(Avg.)
70AQILeast Polluted Year Recorded
2025(Avg.)
62AQIHongseong's annual 2025 AQI (62) shows an average percentage change of -8.1% (improved AQI) compared to previous years: 2020 (65), 2021 (70), 2022 (69), 2023 (67), 2024 (65).
