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HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

Seonghwang Dong, Chonan, Chungnam, South Korea Historical Air Quality Analysis

Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!

Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+

August Air Quality Analysis

Seonghwang Dong, Chonan, Chungnam, South Korea

2022
2023
2024
2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
26th Aug 2024
82AQI
Lowest AQI recorded on
9th Aug 2026
13AQI

Same Day Analysis (17th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 4th highest AQI at 19 of Good air quality, showing improvement over 2025, 2024 and 2023 on the same day.

Day & Night AQI Trend: 17th Aug - 18th Aug 2026

Seonghwang Dong, Chonan, Chungnam, South Korea

AQI
Day
Night
.

5 AM17th Aug 2026

7 PM

4 AM18th Aug 2026

Day time
Avg. Highest Time
2PM17th Aug

33AQI

Avg. Lowest Time
8AM17th Aug

8AQI

Night time
Avg. Highest Time
4AM18th Aug

52AQI

Avg. Lowest Time
10PM17th Aug

25AQI

In the last 24 hours,

Seonghwang Dong's AQI reached its highest point of 52 at 4 AM during the Night, while the lowest point, 8, was recorded at 8 AM during the Day between 17th Aug and 18th Aug 2026.

Day & Night AQI Trend : Jul - Aug 2026

Seonghwang Dong, Chonan, Chungnam, South Korea

JulAug
20th - 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 - 16th16th - 17th17th - 18th18th
Day
Night
20th Jul 2026465 AMAQI
20th Jul 2026466 AMAQI
20th Jul 2026487 AMAQI
20th Jul 2026498 AMAQI
20th Jul 2026389 AMAQI
20th Jul 20263110 AMAQI
20th Jul 20262311 AMAQI
20th Jul 20262512 PMAQI
20th Jul 2026271 PMAQI
20th Jul 2026272 PMAQI
20th Jul 2026323 PMAQI
20th Jul 2026384 PMAQI
20th Jul 2026445 PMAQI
20th Jul 2026476 PMAQI
20th Jul 2026537 PMAQI
20th Jul 2026468 PMAQI
20th Jul 2026449 PMAQI
20th Jul 20263610 PMAQI
20th Jul 20264011 PMAQI
21st Jul 20264012 AMAQI
21st Jul 2026271 AMAQI
21st Jul 2026232 AMAQI
21st Jul 2026213 AMAQI
21st Jul 2026254 AMAQI

25°C21/30°C

21st Jul 2026275 AMAQI
21st Jul 2026236 AMAQI
21st Jul 2026277 AMAQI
21st Jul 2026298 AMAQI
21st Jul 2026279 AMAQI
21st Jul 20262310 AMAQI
21st Jul 20262511 AMAQI
21st Jul 2026341 PMAQI
21st Jul 2026362 PMAQI
21st Jul 2026383 PMAQI
21st Jul 2026444 PMAQI
21st Jul 2026345 PMAQI
21st Jul 2026296 PMAQI
21st Jul 2026747 PMAQI
21st Jul 2026298 PMAQI
21st Jul 2026369 PMAQI
21st Jul 20263310 PMAQI
21st Jul 20264211 PMAQI
22nd Jul 20264412 AMAQI
22nd Jul 2026421 AMAQI
22nd Jul 2026402 AMAQI
22nd Jul 2026383 AMAQI
22nd Jul 2026384 AMAQI

25°C23/28°C

22nd Jul 2026385 AMAQI
22nd Jul 2026316 AMAQI
22nd Jul 2026257 AMAQI
22nd Jul 2026198 AMAQI
22nd Jul 2026179 AMAQI
22nd Jul 20262710 AMAQI
22nd Jul 20264211 AMAQI
22nd Jul 20267112 PMAQI
22nd Jul 2026651 PMAQI
22nd Jul 2026542 PMAQI
22nd Jul 2026513 PMAQI
22nd Jul 2026464 PMAQI
22nd Jul 2026295 PMAQI
22nd Jul 2026506 PMAQI
22nd Jul 2026427 PMAQI
22nd Jul 2026388 PMAQI
22nd Jul 2026389 PMAQI
22nd Jul 20262910 PMAQI
22nd Jul 20263311 PMAQI
23rd Jul 20264012 AMAQI
23rd Jul 2026331 AMAQI
23rd Jul 2026382 AMAQI
23rd Jul 2026403 AMAQI
23rd Jul 2026364 AMAQI

27°C24/31°C

23rd Jul 2026405 AMAQI
23rd Jul 2026426 AMAQI
23rd Jul 2026427 AMAQI
23rd Jul 2026338 AMAQI
23rd Jul 2026389 AMAQI
23rd Jul 20264410 AMAQI
23rd Jul 20265411 AMAQI
23rd Jul 20265512 PMAQI
23rd Jul 2026581 PMAQI
23rd Jul 2026562 PMAQI
23rd Jul 2026603 PMAQI
23rd Jul 2026214 PMAQI
23rd Jul 2026215 PMAQI
23rd Jul 2026216 PMAQI
23rd Jul 2026237 PMAQI
23rd Jul 2026368 PMAQI
23rd Jul 2026609 PMAQI
23rd Jul 20266910 PMAQI
23rd Jul 20266511 PMAQI
24th Jul 20262812 AMAQI
24th Jul 2026301 AMAQI
24th Jul 2026302 AMAQI
24th Jul 2026403 AMAQI
24th Jul 2026404 AMAQI

26°C23/31°C

24th Jul 2026385 AMAQI
24th Jul 2026466 AMAQI
24th Jul 2026427 AMAQI
24th Jul 2026428 AMAQI
24th Jul 2026689 AMAQI
24th Jul 20264810 AMAQI
24th Jul 20264211 AMAQI
24th Jul 20263812 PMAQI
24th Jul 2026221 PMAQI
24th Jul 2026222 PMAQI
24th Jul 2026203 PMAQI
24th Jul 2026194 PMAQI
24th Jul 2026275 PMAQI
24th Jul 2026126 PMAQI
24th Jul 2026147 PMAQI
24th Jul 2026178 PMAQI
24th Jul 2026129 PMAQI
24th Jul 20261210 PMAQI
24th Jul 20262811 PMAQI
25th Jul 20264012 AMAQI
25th Jul 2026501 AMAQI
25th Jul 2026572 AMAQI
25th Jul 2026443 AMAQI
25th Jul 2026314 AMAQI

27°C22/33°C

25th Jul 2026315 AMAQI
25th Jul 2026366 AMAQI
25th Jul 2026297 AMAQI
25th Jul 2026278 AMAQI
25th Jul 2026469 AMAQI
25th Jul 20265510 AMAQI
25th Jul 20262911 AMAQI
25th Jul 20262212 PMAQI
25th Jul 2026171 PMAQI
25th Jul 2026142 PMAQI
25th Jul 2026143 PMAQI
25th Jul 2026104 PMAQI
25th Jul 2026115 PMAQI
25th Jul 2026216 PMAQI
25th Jul 2026177 PMAQI
25th Jul 2026258 PMAQI
25th Jul 2026259 PMAQI
25th Jul 20262710 PMAQI
25th Jul 20262711 PMAQI
26th Jul 20262912 AMAQI
26th Jul 2026251 AMAQI
26th Jul 2026312 AMAQI
26th Jul 2026323 AMAQI
26th Jul 2026214 AMAQI

27°C23/31°C

26th Jul 2026235 AMAQI
26th Jul 2026296 AMAQI
26th Jul 2026217 AMAQI
26th Jul 2026218 AMAQI
26th Jul 2026259 AMAQI
26th Jul 20263210 AMAQI
26th Jul 20263811 AMAQI
26th Jul 20263612 PMAQI
26th Jul 2026331 PMAQI
26th Jul 2026332 PMAQI
26th Jul 2026193 PMAQI
26th Jul 2026214 PMAQI
26th Jul 2026235 PMAQI
26th Jul 2026256 PMAQI
26th Jul 2026257 PMAQI
26th Jul 2026258 PMAQI
26th Jul 2026259 PMAQI
26th Jul 20262510 PMAQI
26th Jul 20262711 PMAQI
27th Jul 20262712 AMAQI
27th Jul 2026341 AMAQI
27th Jul 2026272 AMAQI
27th Jul 2026293 AMAQI
27th Jul 2026384 AMAQI

27°C23/32°C

27th Jul 2026465 AMAQI
27th Jul 2026386 AMAQI
27th Jul 2026337 AMAQI
27th Jul 2026318 AMAQI
27th Jul 2026339 AMAQI
27th Jul 20262510 AMAQI
27th Jul 20262711 AMAQI
27th Jul 20263412 PMAQI
27th Jul 2026251 PMAQI
27th Jul 2026212 PMAQI
27th Jul 2026213 PMAQI
27th Jul 2026274 PMAQI
27th Jul 2026275 PMAQI
27th Jul 2026236 PMAQI
27th Jul 2026257 PMAQI
27th Jul 2026218 PMAQI
27th Jul 2026239 PMAQI
27th Jul 20262510 PMAQI
27th Jul 20262911 PMAQI
28th Jul 20262512 AMAQI
28th Jul 2026291 AMAQI
28th Jul 2026332 AMAQI
28th Jul 2026403 AMAQI
28th Jul 2026274 AMAQI

27°C24/33°C

28th Jul 2026295 AMAQI
28th Jul 2026406 AMAQI
28th Jul 2026427 AMAQI
28th Jul 2026368 AMAQI
28th Jul 2026339 AMAQI
28th Jul 20265210 AMAQI
28th Jul 20265611 AMAQI
28th Jul 20265512 PMAQI
28th Jul 2026531 PMAQI
28th Jul 2026552 PMAQI
28th Jul 2026533 PMAQI
28th Jul 2026564 PMAQI
28th Jul 2026595 PMAQI
28th Jul 2026626 PMAQI
28th Jul 2026637 PMAQI
28th Jul 2026648 PMAQI
28th Jul 2026459 PMAQI
28th Jul 20262510 PMAQI
28th Jul 20261811 PMAQI
29th Jul 20261212 AMAQI
29th Jul 2026101 AMAQI
29th Jul 2026112 AMAQI
29th Jul 2026113 AMAQI
29th Jul 2026204 AMAQI

27°C23/31°C

29th Jul 2026275 AMAQI
29th Jul 2026296 AMAQI
29th Jul 2026207 AMAQI
29th Jul 2026128 AMAQI
29th Jul 2026169 AMAQI
29th Jul 20263010 AMAQI
29th Jul 20264011 AMAQI
29th Jul 20262012 PMAQI
29th Jul 2026201 PMAQI
29th Jul 2026202 PMAQI
29th Jul 2026163 PMAQI
29th Jul 2026114 PMAQI
29th Jul 2026125 PMAQI
29th Jul 2026166 PMAQI
29th Jul 2026247 PMAQI
29th Jul 2026208 PMAQI
29th Jul 2026169 PMAQI
29th Jul 20261010 PMAQI
29th Jul 20261211 PMAQI
30th Jul 20262312 AMAQI
30th Jul 2026291 AMAQI
30th Jul 2026312 AMAQI
30th Jul 2026253 AMAQI
30th Jul 2026214 AMAQI

26°C23/31°C

30th Jul 202685 AMAQI
30th Jul 2026126 AMAQI
30th Jul 2026127 AMAQI
30th Jul 2026148 AMAQI
30th Jul 2026109 AMAQI
30th Jul 20261310 AMAQI
30th Jul 20261711 AMAQI
30th Jul 20261912 PMAQI
30th Jul 2026171 PMAQI
30th Jul 2026212 PMAQI
30th Jul 2026233 PMAQI
30th Jul 2026254 PMAQI
30th Jul 2026305 PMAQI
30th Jul 2026216 PMAQI
30th Jul 2026337 PMAQI
30th Jul 2026408 PMAQI
30th Jul 2026329 PMAQI
30th Jul 20262910 PMAQI
30th Jul 20262911 PMAQI
31st Jul 20263312 AMAQI
31st Jul 2026211 AMAQI
31st Jul 2026272 AMAQI
31st Jul 2026253 AMAQI
31st Jul 2026274 AMAQI

26°C22/31°C

31st Jul 2026325 AMAQI
31st Jul 2026296 AMAQI
31st Jul 2026297 AMAQI
31st Jul 2026238 AMAQI
31st Jul 2026339 AMAQI
31st Jul 20264010 AMAQI
31st Jul 20263111 AMAQI
31st Jul 20265012 PMAQI
31st Jul 2026441 PMAQI
31st Jul 2026442 PMAQI
31st Jul 2026403 PMAQI
31st Jul 2026334 PMAQI
31st Jul 2026405 PMAQI
31st Jul 2026466 PMAQI
31st Jul 2026507 PMAQI
31st Jul 2026428 PMAQI
31st Jul 2026449 PMAQI
31st Jul 20264910 PMAQI
31st Jul 20265311 PMAQI
1st Aug 20264812 AMAQI
1st Aug 2026541 AMAQI
1st Aug 2026552 AMAQI
1st Aug 2026603 AMAQI
1st Aug 2026664 AMAQI

26°C21/32°C

1st Aug 2026675 AMAQI
1st Aug 2026716 AMAQI
1st Aug 2026837 AMAQI
1st Aug 2026808 AMAQI
1st Aug 2026749 AMAQI
1st Aug 20267510 AMAQI
1st Aug 20268111 AMAQI
1st Aug 20267412 PMAQI
1st Aug 2026621 PMAQI
1st Aug 2026502 PMAQI
1st Aug 2026523 PMAQI
1st Aug 2026424 PMAQI
1st Aug 2026405 PMAQI
1st Aug 2026606 PMAQI
1st Aug 2026797 PMAQI
1st Aug 2026768 PMAQI
1st Aug 2026789 PMAQI
1st Aug 20265910 PMAQI
1st Aug 20266411 PMAQI
2nd Aug 20266512 AMAQI
2nd Aug 2026641 AMAQI
2nd Aug 2026442 AMAQI
2nd Aug 2026693 AMAQI
2nd Aug 2026384 AMAQI

28°C24/32°C

2nd Aug 2026365 AMAQI
2nd Aug 2026316 AMAQI
2nd Aug 2026367 AMAQI
2nd Aug 2026518 AMAQI
2nd Aug 2026719 AMAQI
2nd Aug 20266010 AMAQI
2nd Aug 20264611 AMAQI
2nd Aug 20265112 PMAQI
2nd Aug 2026541 PMAQI
2nd Aug 2026522 PMAQI
2nd Aug 2026513 PMAQI
2nd Aug 2026504 PMAQI
2nd Aug 2026465 PMAQI
2nd Aug 2026426 PMAQI
2nd Aug 2026407 PMAQI
2nd Aug 2026368 PMAQI
2nd Aug 2026339 PMAQI
2nd Aug 20262910 PMAQI
2nd Aug 20262011 PMAQI
3rd Aug 20261212 AMAQI
3rd Aug 2026341 AMAQI
3rd Aug 2026382 AMAQI
3rd Aug 2026243 AMAQI
3rd Aug 2026224 AMAQI

27°C23/33°C

3rd Aug 2026165 AMAQI
3rd Aug 2026176 AMAQI
3rd Aug 2026327 AMAQI
3rd Aug 2026528 AMAQI
3rd Aug 2026489 AMAQI
3rd Aug 20265110 AMAQI
3rd Aug 20265211 AMAQI
3rd Aug 20264612 PMAQI
3rd Aug 2026481 PMAQI
3rd Aug 2026442 PMAQI
3rd Aug 2026503 PMAQI
3rd Aug 2026534 PMAQI
3rd Aug 2026565 PMAQI
3rd Aug 2026516 PMAQI
3rd Aug 2026537 PMAQI
3rd Aug 2026648 PMAQI
3rd Aug 2026649 PMAQI
3rd Aug 20267610 PMAQI
3rd Aug 20268711 PMAQI
4th Aug 20267912 AMAQI
4th Aug 2026671 AMAQI
4th Aug 2026642 AMAQI
4th Aug 2026693 AMAQI
4th Aug 2026604 AMAQI

28°C22/35°C

4th Aug 2026625 AMAQI
4th Aug 2026766 AMAQI
4th Aug 2026867 AMAQI
4th Aug 2026838 AMAQI
4th Aug 2026889 AMAQI
4th Aug 20267810 AMAQI
4th Aug 20266411 AMAQI
4th Aug 20265512 PMAQI
4th Aug 2026501 PMAQI
4th Aug 2026532 PMAQI
4th Aug 2026443 PMAQI
4th Aug 2026544 PMAQI
4th Aug 2026565 PMAQI
4th Aug 2026586 PMAQI
4th Aug 2026517 PMAQI
4th Aug 2026768 PMAQI
4th Aug 2026889 PMAQI
4th Aug 20268210 PMAQI
4th Aug 20266211 PMAQI
5th Aug 20264612 AMAQI
5th Aug 2026251 AMAQI
5th Aug 2026252 AMAQI
5th Aug 2026313 AMAQI
5th Aug 2026364 AMAQI

29°C24/35°C

5th Aug 2026565 AMAQI
5th Aug 2026606 AMAQI
5th Aug 2026317 AMAQI
5th Aug 2026368 AMAQI
5th Aug 202689 AMAQI
5th Aug 20261010 AMAQI
5th Aug 20261611 AMAQI
5th Aug 20261412 PMAQI
5th Aug 202671 PMAQI
5th Aug 2026102 PMAQI
5th Aug 2026123 PMAQI
5th Aug 2026234 PMAQI
5th Aug 2026145 PMAQI
5th Aug 2026156 PMAQI
5th Aug 2026257 PMAQI
5th Aug 2026338 PMAQI
5th Aug 2026319 PMAQI
5th Aug 20262510 PMAQI
5th Aug 20264811 PMAQI
6th Aug 20267012 AMAQI
6th Aug 2026711 AMAQI
6th Aug 2026662 AMAQI
6th Aug 2026713 AMAQI
6th Aug 2026734 AMAQI

29°C24/35°C

6th Aug 2026525 AMAQI
6th Aug 2026186 AMAQI
6th Aug 2026137 AMAQI
6th Aug 202698 AMAQI
6th Aug 202689 AMAQI
6th Aug 20261010 AMAQI
6th Aug 20261211 AMAQI
6th Aug 20261512 PMAQI
6th Aug 2026211 PMAQI
6th Aug 2026272 PMAQI
6th Aug 2026253 PMAQI
6th Aug 2026214 PMAQI
6th Aug 2026235 PMAQI
6th Aug 2026216 PMAQI
6th Aug 2026367 PMAQI
6th Aug 2026298 PMAQI
6th Aug 2026279 PMAQI
6th Aug 20263210 PMAQI
6th Aug 20264211 PMAQI
7th Aug 20265712 AMAQI
7th Aug 2026541 AMAQI
7th Aug 2026642 AMAQI
7th Aug 2026723 AMAQI
7th Aug 2026784 AMAQI

29°C23/35°C

7th Aug 2026485 AMAQI
7th Aug 2026136 AMAQI
7th Aug 2026107 AMAQI
7th Aug 202698 AMAQI
7th Aug 2026109 AMAQI
7th Aug 2026810 AMAQI
7th Aug 2026911 AMAQI
7th Aug 20261912 PMAQI
7th Aug 2026521 PMAQI
7th Aug 2026142 PMAQI
7th Aug 2026123 PMAQI
7th Aug 202694 PMAQI
7th Aug 2026105 PMAQI
7th Aug 2026316 PMAQI
7th Aug 2026337 PMAQI
7th Aug 2026318 PMAQI
7th Aug 2026259 PMAQI
7th Aug 20263610 PMAQI
7th Aug 20263811 PMAQI
8th Aug 20265712 AMAQI
8th Aug 2026601 AMAQI
8th Aug 2026662 AMAQI
8th Aug 2026723 AMAQI
8th Aug 2026444 AMAQI

29°C23/36°C

8th Aug 2026505 AMAQI
8th Aug 202686 AMAQI
8th Aug 202697 AMAQI
8th Aug 2026168 AMAQI
8th Aug 2026239 AMAQI
8th Aug 20262110 AMAQI
8th Aug 20262111 AMAQI
8th Aug 20261012 PMAQI
8th Aug 2026101 PMAQI
8th Aug 2026182 PMAQI
8th Aug 2026103 PMAQI
8th Aug 202684 PMAQI
8th Aug 2026105 PMAQI
8th Aug 2026206 PMAQI
8th Aug 2026167 PMAQI
8th Aug 2026128 PMAQI
8th Aug 2026169 PMAQI
8th Aug 20261710 PMAQI
8th Aug 20261711 PMAQI
9th Aug 20261412 AMAQI
9th Aug 2026171 AMAQI
9th Aug 2026122 AMAQI
9th Aug 2026143 AMAQI
9th Aug 2026174 AMAQI

28°C22/35°C

9th Aug 202685 AMAQI
9th Aug 202686 AMAQI
9th Aug 202697 AMAQI
9th Aug 2026108 AMAQI
9th Aug 2026109 AMAQI
9th Aug 20261010 AMAQI
9th Aug 20261211 AMAQI
9th Aug 20261612 PMAQI
9th Aug 2026121 PMAQI
9th Aug 2026192 PMAQI
9th Aug 2026313 PMAQI
9th Aug 202674 PMAQI
9th Aug 2026125 PMAQI
9th Aug 2026206 PMAQI
9th Aug 2026187 PMAQI
9th Aug 202688 PMAQI
9th Aug 202669 PMAQI
9th Aug 2026810 PMAQI
9th Aug 2026811 PMAQI
10th Aug 20261212 AMAQI
10th Aug 2026171 AMAQI
10th Aug 2026192 AMAQI
10th Aug 2026233 AMAQI
10th Aug 2026254 AMAQI

25°C21/30°C

10th Aug 2026255 AMAQI
10th Aug 2026216 AMAQI
10th Aug 2026197 AMAQI
10th Aug 2026218 AMAQI
10th Aug 2026259 AMAQI
10th Aug 20262510 AMAQI
10th Aug 20262511 AMAQI
10th Aug 20262512 PMAQI
10th Aug 2026271 PMAQI
10th Aug 2026342 PMAQI
10th Aug 2026253 PMAQI
10th Aug 2026254 PMAQI
10th Aug 2026255 PMAQI
10th Aug 2026296 PMAQI
10th Aug 2026277 PMAQI
10th Aug 2026348 PMAQI
10th Aug 2026469 PMAQI
10th Aug 20262510 PMAQI
10th Aug 20262911 PMAQI
11th Aug 20262712 AMAQI
11th Aug 2026271 AMAQI
11th Aug 2026212 AMAQI
11th Aug 2026213 AMAQI
11th Aug 2026294 AMAQI

25°C21/30°C

11th Aug 2026315 AMAQI
11th Aug 2026336 AMAQI
11th Aug 2026337 AMAQI
11th Aug 2026278 AMAQI
11th Aug 2026279 AMAQI
11th Aug 20263110 AMAQI
11th Aug 20262711 AMAQI
11th Aug 20262712 PMAQI
11th Aug 2026291 PMAQI
11th Aug 2026272 PMAQI
11th Aug 2026503 PMAQI
11th Aug 2026564 PMAQI
11th Aug 2026535 PMAQI
11th Aug 2026496 PMAQI
11th Aug 2026487 PMAQI
11th Aug 2026348 PMAQI
11th Aug 2026239 PMAQI
11th Aug 20262110 PMAQI
11th Aug 20262111 PMAQI
12th Aug 20262112 AMAQI
12th Aug 2026211 AMAQI
12th Aug 2026212 AMAQI
12th Aug 2026193 AMAQI
12th Aug 2026174 AMAQI

24°C19/31°C

12th Aug 2026195 AMAQI
12th Aug 2026256 AMAQI
12th Aug 2026217 AMAQI
12th Aug 2026258 AMAQI
12th Aug 2026409 AMAQI
12th Aug 20263810 AMAQI
12th Aug 20263411 AMAQI
12th Aug 20262712 PMAQI
12th Aug 2026231 PMAQI
12th Aug 2026462 PMAQI
12th Aug 2026483 PMAQI
12th Aug 2026424 PMAQI
12th Aug 2026365 PMAQI
12th Aug 2026256 PMAQI
12th Aug 2026277 PMAQI
12th Aug 2026258 PMAQI
12th Aug 2026239 PMAQI
12th Aug 20262510 PMAQI
12th Aug 20262911 PMAQI
13th Aug 20262712 AMAQI
13th Aug 2026251 AMAQI
13th Aug 2026252 AMAQI
13th Aug 2026233 AMAQI
13th Aug 2026234 AMAQI

22°C15/30°C

13th Aug 2026275 AMAQI
13th Aug 2026296 AMAQI
13th Aug 2026297 AMAQI
13th Aug 2026368 AMAQI
13th Aug 2026409 AMAQI
13th Aug 20265110 AMAQI
13th Aug 20264211 AMAQI
13th Aug 20264612 PMAQI
13th Aug 2026501 PMAQI
13th Aug 2026252 PMAQI
13th Aug 2026273 PMAQI
13th Aug 2026294 PMAQI
13th Aug 2026255 PMAQI
13th Aug 2026256 PMAQI
13th Aug 2026237 PMAQI
13th Aug 2026238 PMAQI
13th Aug 2026329 PMAQI
13th Aug 20262510 PMAQI
13th Aug 20262711 PMAQI
14th Aug 20263612 AMAQI
14th Aug 2026501 AMAQI
14th Aug 2026472 AMAQI
14th Aug 2026403 AMAQI
14th Aug 2026334 AMAQI

24°C18/30°C

14th Aug 2026295 AMAQI
14th Aug 2026316 AMAQI
14th Aug 2026317 AMAQI
14th Aug 2026308 AMAQI
14th Aug 2026259 AMAQI
14th Aug 20264410 AMAQI
14th Aug 20265011 AMAQI
14th Aug 20264412 PMAQI
14th Aug 2026381 PMAQI
14th Aug 2026302 PMAQI
14th Aug 2026333 PMAQI
14th Aug 2026334 PMAQI
14th Aug 2026465 PMAQI
14th Aug 2026486 PMAQI
14th Aug 2026237 PMAQI
14th Aug 2026368 PMAQI
14th Aug 2026519 PMAQI
14th Aug 20264910 PMAQI
14th Aug 20264811 PMAQI
15th Aug 20265812 AMAQI
15th Aug 2026761 AMAQI
15th Aug 2026742 AMAQI
15th Aug 2026743 AMAQI
15th Aug 2026734 AMAQI

24°C20/30°C

15th Aug 2026925 AMAQI
15th Aug 2026736 AMAQI
15th Aug 2026727 AMAQI
15th Aug 2026668 AMAQI
15th Aug 2026719 AMAQI
15th Aug 20267110 AMAQI
15th Aug 20267011 AMAQI
15th Aug 20264412 PMAQI
15th Aug 2026541 PMAQI
15th Aug 2026492 PMAQI
15th Aug 2026253 PMAQI
15th Aug 2026294 PMAQI
15th Aug 2026275 PMAQI
15th Aug 2026316 PMAQI
15th Aug 2026187 PMAQI
15th Aug 2026228 PMAQI
15th Aug 2026449 PMAQI
15th Aug 20266210 PMAQI
15th Aug 20265411 PMAQI
16th Aug 20265212 AMAQI
16th Aug 2026361 AMAQI
16th Aug 2026492 AMAQI
16th Aug 2026563 AMAQI
16th Aug 2026354 AMAQI

24°C22/29°C

16th Aug 2026105 AMAQI
16th Aug 2026126 AMAQI
16th Aug 2026127 AMAQI
16th Aug 2026138 AMAQI
16th Aug 2026129 AMAQI
16th Aug 20261310 AMAQI
16th Aug 20262311 AMAQI
16th Aug 20262512 PMAQI
16th Aug 2026511 PMAQI
16th Aug 2026502 PMAQI
16th Aug 2026143 PMAQI
16th Aug 2026164 PMAQI
16th Aug 2026155 PMAQI
16th Aug 2026156 PMAQI
16th Aug 2026167 PMAQI
16th Aug 2026178 PMAQI
16th Aug 2026199 PMAQI
16th Aug 20261310 PMAQI
16th Aug 2026811 PMAQI
17th Aug 2026812 AMAQI
17th Aug 202681 AMAQI
17th Aug 202682 AMAQI
17th Aug 202663 AMAQI
17th Aug 202684 AMAQI

23°C22/27°C

17th Aug 202685 AMAQI
17th Aug 2026106 AMAQI
17th Aug 202687 AMAQI
17th Aug 202688 AMAQI
17th Aug 2026149 AMAQI
17th Aug 20262110 AMAQI
17th Aug 20262511 AMAQI
17th Aug 20262112 PMAQI
17th Aug 2026231 PMAQI
17th Aug 2026332 PMAQI
17th Aug 2026293 PMAQI
17th Aug 2026214 PMAQI
17th Aug 2026255 PMAQI
17th Aug 2026296 PMAQI
17th Aug 2026277 PMAQI
17th Aug 2026318 PMAQI
17th Aug 2026279 PMAQI
17th Aug 20262510 PMAQI
17th Aug 20262711 PMAQI
18th Aug 20263112 AMAQI
18th Aug 2026311 AMAQI
18th Aug 2026402 AMAQI
18th Aug 2026273 AMAQI
18th Aug 2026524 AMAQI

13°C13/14°C

18th Aug 2026575 AMAQI
5 AM
18th Aug 2026606 AMAQI
18th Aug 2026587 AMAQI
18th Aug 2026568 AMAQI
18th Aug 2026549 AMAQI
18th Aug 20266010 AMAQI
18th Aug 20262111 AMAQI
18th Aug 20261912 PMAQI
12 PM
18th Aug 2026161 PMAQI
18th Aug 2026162 PMAQI
18th Aug 2026203 PMAQI
18th Aug 2026194 PMAQI
18th Aug 2026175 PMAQI
18th Aug 2026196 PMAQI
18th Aug 2026447 PMAQI
7 PM
18th Aug 2026568 PMAQI
18th Aug 2026389 PMAQI
18th Aug 20263610 PMAQI
18th Aug 20263611 PMAQI
12 AM
4 AM

25°C22/30°C

Day time
Avg. Highest Time
10 AM

37AQI

1 hours / Day
30 hours / Month
Avg. Lowest Time
4 PM - 5 PM

30AQI

2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 10 AM to 10 AM (Avg. 37), while the lowest AQI was between 4 PM to 5 PM (Avg. 30).
Night time
Avg. Highest Time
12 AM - 4 AM

37AQI

5 hours / Day
150 hours / Month
Avg. Lowest Time
10 PM

34AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 4 AM (Avg. 37), while the lowest AQI was between 10 PM to 10 PM (Avg. 34).

2026 Days Vs Air Quality

Seonghwang Dong, Chonan, Chungnam, South Korea

2026

52%

118

39%

88

9%

20

Total number of days with different AQI categories in last 230 days in 2026 (135 days remaining)

Good
118 Days
Moderate
88 Days
Poor
20 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 52%

Health Risk Level:

Considerable

In 2026, 52% of 230 days were within WHO’s safe air quality limits, and 48% exceeded them. The risk of health issues is Considerable, with potential for conditions in sensitive individuals.

Annual Air Quality Insights

Seonghwang Dong, Chonan, Chungnam, South Korea

AQI levels in 2026

AQI (US)
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 2026
-1th undefined 2026
-1th undefined 2026
-1th undefined 2026
1st January 2026
32AQI (US)
2nd January 2026
42AQI (US)
3rd January 2026
59AQI (US)
4th January 2026
85AQI (US)
5th January 2026
66AQI (US)
6th January 2026
54AQI (US)
7th January 2026
57AQI (US)
8th January 2026
29AQI (US)
9th January 2026
44AQI (US)
10th January 2026
48AQI (US)
11th January 2026
34AQI (US)
12th January 2026
44AQI (US)
13th January 2026
55AQI (US)
14th January 2026
34AQI (US)
15th January 2026
98AQI (US)
16th January 2026
143AQI (US)
17th January 2026
118AQI (US)
18th January 2026
119AQI (US)
19th January 2026
68AQI (US)
20th January 2026
37AQI (US)
21st January 2026
37AQI (US)
22nd January 2026
36AQI (US)
23rd January 2026
65AQI (US)
24th January 2026
55AQI (US)
25th January 2026
34AQI (US)
26th January 2026
49AQI (US)
27th January 2026
61AQI (US)
28th January 2026
39AQI (US)
29th January 2026
49AQI (US)
30th January 2026
50AQI (US)
31st January 2026
71AQI (US)
1st February 2026
75AQI (US)
2nd February 2026
68AQI (US)
3rd February 2026
60AQI (US)
4th February 2026
100AQI (US)
5th February 2026
120AQI (US)
6th February 2026
69AQI (US)
7th February 2026
42AQI (US)
8th February 2026
46AQI (US)
9th February 2026
54AQI (US)
10th February 2026
78AQI (US)
11th February 2026
104AQI (US)
12th February 2026
112AQI (US)
13th February 2026
121AQI (US)
14th February 2026
140AQI (US)
15th February 2026
106AQI (US)
16th February 2026
45AQI (US)
17th February 2026
50AQI (US)
18th February 2026
57AQI (US)
19th February 2026
35AQI (US)
20th February 2026
68AQI (US)
21st February 2026
88AQI (US)
22nd February 2026
53AQI (US)
23rd February 2026
28AQI (US)
24th February 2026
47AQI (US)
25th February 2026
53AQI (US)
26th February 2026
31AQI (US)
27th February 2026
30AQI (US)
28th February 2026
51AQI (US)
1st March 2026
31AQI (US)
2nd March 2026
18AQI (US)
3rd March 2026
46AQI (US)
4th March 2026
62AQI (US)
5th March 2026
86AQI (US)
6th March 2026
68AQI (US)
7th March 2026
54AQI (US)
8th March 2026
55AQI (US)
9th March 2026
97AQI (US)
10th March 2026
95AQI (US)
11th March 2026
91AQI (US)
12th March 2026
114AQI (US)
13th March 2026
46AQI (US)
14th March 2026
47AQI (US)
15th March 2026
91AQI (US)
16th March 2026
127AQI (US)
17th March 2026
121AQI (US)
18th March 2026
128AQI (US)
19th March 2026
60AQI (US)
20th March 2026
59AQI (US)
21st March 2026
98AQI (US)
22nd March 2026
80AQI (US)
23rd March 2026
115AQI (US)
24th March 2026
107AQI (US)
25th March 2026
94AQI (US)
26th March 2026
118AQI (US)
27th March 2026
130AQI (US)
28th March 2026
119AQI (US)
29th March 2026
103AQI (US)
30th March 2026
91AQI (US)
31st March 2026
50AQI (US)
1st April 2026
68AQI (US)
2nd April 2026
83AQI (US)
3rd April 2026
106AQI (US)
4th April 2026
46AQI (US)
5th April 2026
61AQI (US)
6th April 2026
60AQI (US)
7th April 2026
23AQI (US)
8th April 2026
45AQI (US)
9th April 2026
53AQI (US)
10th April 2026
28AQI (US)
11th April 2026
72AQI (US)
12th April 2026
83AQI (US)
13th April 2026
65AQI (US)
14th April 2026
61AQI (US)
15th April 2026
65AQI (US)
16th April 2026
55AQI (US)
17th April 2026
18th April 2026
58AQI (US)
19th April 2026
71AQI (US)
20th April 2026
69AQI (US)
21st April 2026
65AQI (US)
22nd April 2026
23rd April 2026
50AQI (US)
24th April 2026
33AQI (US)
25th April 2026
51AQI (US)
26th April 2026
52AQI (US)
27th April 2026
48AQI (US)
28th April 2026
36AQI (US)
29th April 2026
47AQI (US)
30th April 2026
48AQI (US)
1st May 2026
45AQI (US)
2nd May 2026
91AQI (US)
3rd May 2026
55AQI (US)
4th May 2026
28AQI (US)
5th May 2026
38AQI (US)
6th May 2026
31AQI (US)
7th May 2026
41AQI (US)
8th May 2026
40AQI (US)
9th May 2026
10th May 2026
35AQI (US)
11th May 2026
41AQI (US)
12th May 2026
35AQI (US)
13th May 2026
56AQI (US)
14th May 2026
50AQI (US)
15th May 2026
51AQI (US)
16th May 2026
77AQI (US)
17th May 2026
66AQI (US)
18th May 2026
56AQI (US)
19th May 2026
52AQI (US)
20th May 2026
63AQI (US)
21st May 2026
66AQI (US)
22nd May 2026
80AQI (US)
23rd May 2026
71AQI (US)
24th May 2026
69AQI (US)
25th May 2026
65AQI (US)
26th May 2026
50AQI (US)
27th May 2026
26AQI (US)
28th May 2026
35AQI (US)
29th May 2026
54AQI (US)
30th May 2026
44AQI (US)
31st May 2026
47AQI (US)
1st June 2026
48AQI (US)
2nd June 2026
59AQI (US)
3rd June 2026
66AQI (US)
4th June 2026
65AQI (US)
5th June 2026
28AQI (US)
6th June 2026
37AQI (US)
7th June 2026
35AQI (US)
8th June 2026
56AQI (US)
9th June 2026
32AQI (US)
10th June 2026
32AQI (US)
11th June 2026
39AQI (US)
12th June 2026
45AQI (US)
13th June 2026
46AQI (US)
14th June 2026
50AQI (US)
15th June 2026
48AQI (US)
16th June 2026
56AQI (US)
17th June 2026
58AQI (US)
18th June 2026
63AQI (US)
19th June 2026
56AQI (US)
20th June 2026
19AQI (US)
21st June 2026
16AQI (US)
22nd June 2026
26AQI (US)
23rd June 2026
33AQI (US)
24th June 2026
17AQI (US)
25th June 2026
27AQI (US)
26th June 2026
35AQI (US)
27th June 2026
59AQI (US)
28th June 2026
54AQI (US)
29th June 2026
50AQI (US)
30th June 2026
50AQI (US)
1st July 2026
40AQI (US)
2nd July 2026
40AQI (US)
3rd July 2026
29AQI (US)
4th July 2026
54AQI (US)
5th July 2026
37AQI (US)
6th July 2026
27AQI (US)
7th July 2026
25AQI (US)
8th July 2026
27AQI (US)
9th July 2026
22AQI (US)
10th July 2026
28AQI (US)
11th July 2026
33AQI (US)
12th July 2026
38AQI (US)
13th July 2026
28AQI (US)
14th July 2026
26AQI (US)
15th July 2026
31AQI (US)
16th July 2026
60AQI (US)
17th July 2026
56AQI (US)
18th July 2026
37AQI (US)
19th July 2026
24AQI (US)
20th July 2026
38AQI (US)
21st July 2026
32AQI (US)
22nd July 2026
39AQI (US)
23rd July 2026
43AQI (US)
24th July 2026
31AQI (US)
25th July 2026
29AQI (US)
26th July 2026
27AQI (US)
27th July 2026
29AQI (US)
28th July 2026
44AQI (US)
29th July 2026
18AQI (US)
30th July 2026
22AQI (US)
31st July 2026
37AQI (US)
1st August 2026
65AQI (US)
2nd August 2026
46AQI (US)
3rd August 2026
45AQI (US)
4th August 2026
67AQI (US)
5th August 2026
27AQI (US)
6th August 2026
33AQI (US)
7th August 2026
31AQI (US)
8th August 2026
25AQI (US)
9th August 2026
13AQI (US)
10th August 2026
25AQI (US)
11th August 2026
32AQI (US)
12th August 2026
28AQI (US)
13th August 2026
31AQI (US)
14th August 2026
39AQI (US)
15th August 2026
55AQI (US)
16th August 2026
24AQI (US)
17th August 2026
19AQI (US)
18th August 2026
19th August 2026
20th August 2026
21st August 2026
22nd August 2026
23rd August 2026
24th August 2026
25th August 2026
26th August 2026
27th August 2026
28th August 2026
29th August 2026
30th August 2026
31st August 2026
1st September 2026
2nd September 2026
3rd September 2026
4th September 2026
5th September 2026
6th September 2026
7th September 2026
8th September 2026
9th September 2026
10th September 2026
11th September 2026
12th September 2026
13th September 2026
14th September 2026
15th September 2026
16th September 2026
17th September 2026
18th September 2026
19th September 2026
20th September 2026
21st September 2026
22nd September 2026
23rd September 2026
24th September 2026
25th September 2026
26th September 2026
27th September 2026
28th September 2026
29th September 2026
30th September 2026
1st October 2026
2nd October 2026
3rd October 2026
4th October 2026
5th October 2026
6th October 2026
7th October 2026
8th October 2026
9th October 2026
10th October 2026
11th October 2026
12th October 2026
13th October 2026
14th October 2026
15th October 2026
16th October 2026
17th October 2026
18th October 2026
19th October 2026
20th October 2026
21st October 2026
22nd October 2026
23rd October 2026
24th October 2026
25th October 2026
26th October 2026
27th October 2026
28th October 2026
29th October 2026
30th October 2026
31st October 2026
1st November 2026
2nd November 2026
3rd November 2026
4th November 2026
5th November 2026
6th November 2026
7th November 2026
8th November 2026
9th November 2026
10th November 2026
11th November 2026
12th November 2026
13th November 2026
14th November 2026
15th November 2026
16th November 2026
17th November 2026
18th November 2026
19th November 2026
20th November 2026
21st November 2026
22nd November 2026
23rd November 2026
24th November 2026
25th November 2026
26th November 2026
27th November 2026
28th November 2026
29th November 2026
30th November 2026
1st December 2026
2nd December 2026
3rd December 2026
4th December 2026
5th December 2026
6th December 2026
7th December 2026
8th December 2026
9th December 2026
10th December 2026
11th December 2026
12th December 2026
13th December 2026
14th December 2026
15th December 2026
16th December 2026
17th December 2026
18th December 2026
19th December 2026
20th December 2026
21st December 2026
22nd December 2026
23rd December 2026
24th December 2026
25th December 2026
26th December 2026
27th December 2026
28th December 2026
29th December 2026
30th December 2026
31st December 2026

58AQI (US)

69AQI (US)

84AQI (US)

57AQI (US)

52AQI (US)

44AQI (US)

34AQI (US)

36AQI (US)

No. of days

Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days

202655AQI (US)

16
12
3
9
13
6
6
15
10
10
17
1
15
15
20
10
28
3
14
3
118
88
20

Highest AQI (US) recorded in

March

84AQI (US)

Lowest AQI (US) recorded in

July

34AQI (US)

202562AQI (US)

1
25
5
2
25
1
3
22
6
5
25
9
22
3
27
15
16
19
12
26
4
12
19
5
21
4
6
23
2
106
241
18

Highest AQI (US) recorded in

January

82AQI (US)

Lowest AQI (US) recorded in

September

43AQI (US)

202462AQI (US)

5
14
10
1
10
12
6
1
6
22
3
6
20
4
14
16
1
2
25
2
23
8
10
21
19
11
12
19
9
18
3
4
27
120
213
29
2

Highest AQI (US) recorded in

January

86AQI (US)

Lowest AQI (US) recorded in

July

39AQI (US)

202369AQI (US)

5
20
3
2
1
19
5
3
4
18
7
2
2
20
7
1
6
23
2
5
25
16
14
1
9
22
19
11
11
20
10
16
3
8
16
5
2
96
224
33
10

Highest AQI (US) recorded in

March

92AQI (US)

Lowest AQI (US) recorded in

September

47AQI (US)

202271AQI (US)

19
7
3
1
13
4
3
5
17
9
3
13
1
6
24
1
7
23
6
14
1
1
15
11
2
12
16
3
6
20
3
1
10
20
1
72
190
32
7

Highest AQI (US) recorded in

February

92AQI (US)

Lowest AQI (US) recorded in

August

30AQI (US)

202169AQI (US)

2
21
6
3
16
6
3
3
17
7
3
1
3
25
2
8
19
2
1
1
3
26
1
14
17
16
15
23
7
8
12
7
15
8
1
90
190
32
8
2

Highest AQI (US) recorded in

March

100AQI (US)

Lowest AQI (US) recorded in

September

41AQI (US)

202066AQI (US)

1
1
2
23
2
16
15
19
12
15
15
5
22
4
7
14
7
2
3
18
9
1
68
120
22
3

Highest AQI (US) recorded in

December

86AQI (US)

Lowest AQI (US) recorded in

March

47AQI (US)

Most & Least Polluted Years Over the Last 7 Years

Most Polluted Year Recorded
2022(Avg.)
71AQI (US)
Least Polluted Year Recorded
2026(Avg.)
55AQI (US)

Seonghwang Dong's annual 2026 AQI (US) (55) shows an average percentage change of -17.06% (improved AQI (US)) compared to previous years: 2020 (66), 2021 (69), 2022 (71), 2023 (69), 2024 (62), 2025 (62).