Country Background
HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

Sinjangdong, Osan, Gyeonggi, South Korea Historical Air Quality Analysis

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

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

August Air Quality Analysis

Sinjangdong, Osan, Gyeonggi, South Korea

2022
2023
2024
2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
24th Aug 2024
104AQI
Lowest AQI recorded on
9th Aug 2026
12AQI

Same Day Analysis (16th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 3rd highest AQI at 40 of Good air quality, showing improvement over 2024 and 2023 on the same day.

Day & Night AQI Trend: 15th Aug - 16th Aug 2026

Sinjangdong, Osan, Gyeonggi, South Korea

AQI
Day
Night
.

5 AM15th Aug 2026

7 PM

4 AM16th Aug 2026

Day time
Avg. Highest Time
5AM15th Aug

60AQI

Avg. Lowest Time
7PM15th Aug

38AQI

Night time
Avg. Highest Time
3AM16th Aug

69AQI

Avg. Lowest Time
1AM16th Aug

51AQI

In the last 24 hours,

Sinjangdong's AQI reached its highest point of 69 at 3 AM during the Night, while the lowest point, 38, was recorded at 7 PM during the Day between 15th Aug and 16th Aug 2026.

Day & Night AQI Trend : Jul - Aug 2026

Sinjangdong, Osan, Gyeonggi, South Korea

JulAug
18th - 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 - 16th16th
Day
Night
18th Jul 2026465 AMAQI
18th Jul 2026346 AMAQI
18th Jul 2026427 AMAQI
18th Jul 2026528 AMAQI
18th Jul 2026569 AMAQI
18th Jul 20266610 AMAQI
18th Jul 20265411 AMAQI
18th Jul 20264412 PMAQI
18th Jul 2026251 PMAQI
18th Jul 2026222 PMAQI
18th Jul 2026303 PMAQI
18th Jul 2026404 PMAQI
18th Jul 2026405 PMAQI
18th Jul 2026496 PMAQI
18th Jul 2026297 PMAQI
18th Jul 2026368 PMAQI
18th Jul 2026489 PMAQI
18th Jul 20265010 PMAQI
18th Jul 20268011 PMAQI
19th Jul 20264012 AMAQI
19th Jul 2026361 AMAQI
19th Jul 2026332 AMAQI
19th Jul 2026273 AMAQI
19th Jul 2026254 AMAQI

24°C22/26°C

19th Jul 2026465 AMAQI
19th Jul 2026386 AMAQI
19th Jul 2026427 AMAQI
19th Jul 2026548 AMAQI
19th Jul 2026709 AMAQI
19th Jul 20266510 AMAQI
19th Jul 20265411 AMAQI
19th Jul 20264612 PMAQI
19th Jul 2026401 PMAQI
19th Jul 2026382 PMAQI
19th Jul 2026423 PMAQI
19th Jul 2026384 PMAQI
19th Jul 2026525 PMAQI
19th Jul 2026636 PMAQI
19th Jul 2026537 PMAQI
19th Jul 2026298 PMAQI
19th Jul 2026389 PMAQI
19th Jul 20264610 PMAQI
19th Jul 20264211 PMAQI
20th Jul 20263112 AMAQI
20th Jul 2026331 AMAQI
20th Jul 2026482 AMAQI
20th Jul 2026383 AMAQI
20th Jul 2026464 AMAQI

24°C23/24°C

20th Jul 2026445 AMAQI
20th Jul 2026386 AMAQI
20th Jul 2026387 AMAQI
20th Jul 2026498 AMAQI
20th Jul 2026609 AMAQI
20th Jul 20265210 AMAQI
20th Jul 20262711 AMAQI
20th Jul 20262912 PMAQI
20th Jul 2026251 PMAQI
20th Jul 2026232 PMAQI
20th Jul 2026233 PMAQI
20th Jul 2026234 PMAQI
20th Jul 2026205 PMAQI
20th Jul 2026166 PMAQI
20th Jul 2026197 PMAQI
20th Jul 2026298 PMAQI
20th Jul 2026369 PMAQI
20th Jul 20262910 PMAQI
20th Jul 20262911 PMAQI
21st Jul 20262712 AMAQI
21st Jul 2026361 AMAQI
21st Jul 2026332 AMAQI
21st Jul 2026333 AMAQI
21st Jul 2026364 AMAQI

25°C22/29°C

21st Jul 2026365 AMAQI
21st Jul 2026386 AMAQI
21st Jul 2026297 AMAQI
21st Jul 2026258 AMAQI
21st Jul 2026279 AMAQI
21st Jul 20263410 AMAQI
21st Jul 20263311 AMAQI
21st Jul 2026501 PMAQI
21st Jul 2026422 PMAQI
21st Jul 2026363 PMAQI
21st Jul 2026254 PMAQI
21st Jul 2026235 PMAQI
21st Jul 2026216 PMAQI
21st Jul 2026667 PMAQI
21st Jul 2026258 PMAQI
21st Jul 2026389 PMAQI
21st Jul 20264010 PMAQI
21st Jul 20263811 PMAQI
22nd Jul 20264012 AMAQI
22nd Jul 2026401 AMAQI
22nd Jul 2026362 AMAQI
22nd Jul 2026273 AMAQI
22nd Jul 2026294 AMAQI

25°C23/28°C

22nd Jul 2026315 AMAQI
22nd Jul 2026296 AMAQI
22nd Jul 2026277 AMAQI
22nd Jul 2026298 AMAQI
22nd Jul 2026369 AMAQI
22nd Jul 20262910 AMAQI
22nd Jul 20263211 AMAQI
22nd Jul 20264212 PMAQI
22nd Jul 2026421 PMAQI
22nd Jul 2026512 PMAQI
22nd Jul 2026533 PMAQI
22nd Jul 2026544 PMAQI
22nd Jul 2026685 PMAQI
22nd Jul 2026386 PMAQI
22nd Jul 2026447 PMAQI
22nd Jul 2026628 PMAQI
22nd Jul 2026629 PMAQI
22nd Jul 20266310 PMAQI
22nd Jul 20267011 PMAQI
23rd Jul 20267412 AMAQI
23rd Jul 2026691 AMAQI
23rd Jul 2026602 AMAQI
23rd Jul 2026523 AMAQI
23rd Jul 2026554 AMAQI

26°C24/30°C

23rd Jul 2026525 AMAQI
23rd Jul 2026506 AMAQI
23rd Jul 2026507 AMAQI
23rd Jul 2026508 AMAQI
23rd Jul 2026459 AMAQI
23rd Jul 20265110 AMAQI
23rd Jul 20266911 AMAQI
23rd Jul 20265612 PMAQI
23rd Jul 2026531 PMAQI
23rd Jul 2026632 PMAQI
23rd Jul 2026733 PMAQI
23rd Jul 2026624 PMAQI
23rd Jul 2026645 PMAQI
23rd Jul 2026726 PMAQI
23rd Jul 2026667 PMAQI
23rd Jul 2026678 PMAQI
23rd Jul 2026769 PMAQI
23rd Jul 20268110 PMAQI
23rd Jul 20267611 PMAQI
24th Jul 20266012 AMAQI
24th Jul 2026581 AMAQI
24th Jul 2026482 AMAQI
24th Jul 2026483 AMAQI
24th Jul 2026484 AMAQI

26°C23/29°C

24th Jul 2026485 AMAQI
24th Jul 2026406 AMAQI
24th Jul 2026447 AMAQI
24th Jul 2026548 AMAQI
24th Jul 2026539 AMAQI
24th Jul 20266310 AMAQI
24th Jul 20265011 AMAQI
24th Jul 20264012 PMAQI
24th Jul 2026511 PMAQI
24th Jul 2026422 PMAQI
24th Jul 2026293 PMAQI
24th Jul 2026404 PMAQI
24th Jul 2026495 PMAQI
24th Jul 2026446 PMAQI
24th Jul 2026387 PMAQI
24th Jul 2026408 PMAQI
24th Jul 2026429 PMAQI
24th Jul 20264010 PMAQI
24th Jul 20263811 PMAQI
25th Jul 20263112 AMAQI
25th Jul 2026291 AMAQI
25th Jul 2026332 AMAQI
25th Jul 2026363 AMAQI
25th Jul 2026334 AMAQI

27°C23/31°C

25th Jul 2026335 AMAQI
25th Jul 2026316 AMAQI
25th Jul 2026337 AMAQI
25th Jul 2026368 AMAQI
25th Jul 2026299 AMAQI
25th Jul 20262710 AMAQI
25th Jul 20262311 AMAQI
25th Jul 20262312 PMAQI
25th Jul 2026311 PMAQI
25th Jul 2026292 PMAQI
25th Jul 2026623 PMAQI
25th Jul 2026464 PMAQI
25th Jul 2026425 PMAQI
25th Jul 2026276 PMAQI
25th Jul 2026277 PMAQI
25th Jul 2026298 PMAQI
25th Jul 2026319 PMAQI
25th Jul 20262710 PMAQI
25th Jul 20262711 PMAQI
26th Jul 20262312 AMAQI
26th Jul 2026211 AMAQI
26th Jul 2026212 AMAQI
26th Jul 2026213 AMAQI
26th Jul 2026214 AMAQI

27°C24/31°C

26th Jul 2026235 AMAQI
26th Jul 2026256 AMAQI
26th Jul 2026257 AMAQI
26th Jul 2026298 AMAQI
26th Jul 2026299 AMAQI
26th Jul 20262510 AMAQI
26th Jul 20262911 AMAQI
26th Jul 20262912 PMAQI
26th Jul 2026271 PMAQI
26th Jul 2026292 PMAQI
26th Jul 2026253 PMAQI
26th Jul 2026254 PMAQI
26th Jul 2026295 PMAQI
26th Jul 2026366 PMAQI
26th Jul 2026367 PMAQI
26th Jul 2026238 PMAQI
26th Jul 2026239 PMAQI
26th Jul 20262110 PMAQI
26th Jul 20263211 PMAQI
27th Jul 20263012 AMAQI
27th Jul 2026211 AMAQI
27th Jul 2026212 AMAQI
27th Jul 2026293 AMAQI
27th Jul 2026214 AMAQI

27°C24/31°C

27th Jul 2026255 AMAQI
27th Jul 2026296 AMAQI
27th Jul 2026257 AMAQI
27th Jul 2026258 AMAQI
27th Jul 2026259 AMAQI
27th Jul 20262310 AMAQI
27th Jul 20262511 AMAQI
27th Jul 20263112 PMAQI
27th Jul 2026311 PMAQI
27th Jul 2026212 PMAQI
27th Jul 2026213 PMAQI
27th Jul 2026214 PMAQI
27th Jul 2026235 PMAQI
27th Jul 2026316 PMAQI
27th Jul 2026497 PMAQI
27th Jul 2026388 PMAQI
27th Jul 2026389 PMAQI
27th Jul 20262710 PMAQI
27th Jul 20262511 PMAQI
28th Jul 20262512 AMAQI
28th Jul 2026231 AMAQI
28th Jul 2026212 AMAQI
28th Jul 2026213 AMAQI
28th Jul 2026214 AMAQI

28°C24/32°C

28th Jul 2026215 AMAQI
28th Jul 2026236 AMAQI
28th Jul 2026277 AMAQI
28th Jul 2026298 AMAQI
28th Jul 2026389 AMAQI
28th Jul 20264410 AMAQI
28th Jul 20264811 AMAQI
28th Jul 20265112 PMAQI
28th Jul 2026531 PMAQI
28th Jul 2026562 PMAQI
28th Jul 2026603 PMAQI
28th Jul 2026624 PMAQI
28th Jul 2026645 PMAQI
28th Jul 2026596 PMAQI
28th Jul 2026607 PMAQI
28th Jul 2026638 PMAQI
28th Jul 2026609 PMAQI
28th Jul 20265510 PMAQI
28th Jul 20264011 PMAQI
29th Jul 20263212 AMAQI
29th Jul 2026271 AMAQI
29th Jul 2026382 AMAQI
29th Jul 2026363 AMAQI
29th Jul 2026314 AMAQI

27°C25/30°C

29th Jul 2026295 AMAQI
29th Jul 2026276 AMAQI
29th Jul 2026387 AMAQI
29th Jul 2026258 AMAQI
29th Jul 2026169 AMAQI
29th Jul 20261610 AMAQI
29th Jul 20262111 AMAQI
29th Jul 20262112 PMAQI
29th Jul 202681 PMAQI
29th Jul 2026122 PMAQI
29th Jul 2026293 PMAQI
29th Jul 2026404 PMAQI
29th Jul 2026255 PMAQI
29th Jul 2026366 PMAQI
29th Jul 2026327 PMAQI
29th Jul 2026178 PMAQI
29th Jul 2026249 PMAQI
29th Jul 20263610 PMAQI
29th Jul 20264411 PMAQI
30th Jul 20262512 AMAQI
30th Jul 2026271 AMAQI
30th Jul 2026252 AMAQI
30th Jul 2026213 AMAQI
30th Jul 2026274 AMAQI

26°C24/30°C

30th Jul 2026255 AMAQI
30th Jul 2026296 AMAQI
30th Jul 2026387 AMAQI
30th Jul 2026368 AMAQI
30th Jul 2026299 AMAQI
30th Jul 20263110 AMAQI
30th Jul 20263311 AMAQI
30th Jul 20262712 PMAQI
30th Jul 2026141 PMAQI
30th Jul 2026272 PMAQI
30th Jul 2026233 PMAQI
30th Jul 2026294 PMAQI
30th Jul 2026345 PMAQI
30th Jul 2026326 PMAQI
30th Jul 2026407 PMAQI
30th Jul 2026388 PMAQI
30th Jul 2026319 PMAQI
30th Jul 20262710 PMAQI
30th Jul 20262911 PMAQI
31st Jul 20262912 AMAQI
31st Jul 2026211 AMAQI
31st Jul 2026252 AMAQI
31st Jul 2026273 AMAQI
31st Jul 2026364 AMAQI

26°C23/31°C

31st Jul 2026345 AMAQI
31st Jul 2026296 AMAQI
31st Jul 2026337 AMAQI
31st Jul 2026368 AMAQI
31st Jul 2026429 AMAQI
31st Jul 20267110 AMAQI
31st Jul 20263111 AMAQI
31st Jul 20264212 PMAQI
31st Jul 2026601 PMAQI
31st Jul 2026682 PMAQI
31st Jul 2026733 PMAQI
31st Jul 2026764 PMAQI
31st Jul 2026665 PMAQI
31st Jul 2026646 PMAQI
31st Jul 2026587 PMAQI
31st Jul 2026598 PMAQI
31st Jul 2026599 PMAQI
31st Jul 20268210 PMAQI
31st Jul 20266611 PMAQI
1st Aug 20267412 AMAQI
1st Aug 2026831 AMAQI
1st Aug 2026902 AMAQI
1st Aug 2026843 AMAQI
1st Aug 2026974 AMAQI

27°C23/32°C

1st Aug 20261005 AMAQI
1st Aug 2026936 AMAQI
1st Aug 20261067 AMAQI
1st Aug 20261218 AMAQI
1st Aug 20261009 AMAQI
1st Aug 20269910 AMAQI
1st Aug 202611411 AMAQI
1st Aug 20269612 PMAQI
1st Aug 2026601 PMAQI
1st Aug 2026722 PMAQI
1st Aug 2026783 PMAQI
1st Aug 2026624 PMAQI
1st Aug 2026645 PMAQI
1st Aug 2026876 PMAQI
1st Aug 2026807 PMAQI
1st Aug 2026808 PMAQI
1st Aug 2026819 PMAQI
1st Aug 20267410 PMAQI
1st Aug 20267211 PMAQI
2nd Aug 20267212 AMAQI
2nd Aug 2026681 AMAQI
2nd Aug 2026672 AMAQI
2nd Aug 2026683 AMAQI
2nd Aug 2026554 AMAQI

28°C25/32°C

2nd Aug 2026555 AMAQI
2nd Aug 2026626 AMAQI
2nd Aug 2026627 AMAQI
2nd Aug 2026568 AMAQI
2nd Aug 2026509 AMAQI
2nd Aug 20266210 AMAQI
2nd Aug 20266211 AMAQI
2nd Aug 20266612 PMAQI
2nd Aug 2026621 PMAQI
2nd Aug 2026792 PMAQI
2nd Aug 2026633 PMAQI
2nd Aug 2026514 PMAQI
2nd Aug 2026525 PMAQI
2nd Aug 2026566 PMAQI
2nd Aug 2026517 PMAQI
2nd Aug 2026468 PMAQI
2nd Aug 2026489 PMAQI
2nd Aug 20264010 PMAQI
2nd Aug 20264611 PMAQI
3rd Aug 20264212 AMAQI
3rd Aug 2026481 AMAQI
3rd Aug 2026552 AMAQI
3rd Aug 2026483 AMAQI
3rd Aug 2026494 AMAQI

28°C24/32°C

3rd Aug 2026515 AMAQI
3rd Aug 2026586 AMAQI
3rd Aug 2026537 AMAQI
3rd Aug 2026598 AMAQI
3rd Aug 2026599 AMAQI
3rd Aug 20265810 AMAQI
3rd Aug 20264811 AMAQI
3rd Aug 20265412 PMAQI
3rd Aug 2026531 PMAQI
3rd Aug 2026512 PMAQI
3rd Aug 2026513 PMAQI
3rd Aug 2026494 PMAQI
3rd Aug 2026465 PMAQI
3rd Aug 2026586 PMAQI
3rd Aug 2026787 PMAQI
3rd Aug 2026958 PMAQI
3rd Aug 2026869 PMAQI
3rd Aug 20267810 PMAQI
3rd Aug 20267411 PMAQI
4th Aug 20266912 AMAQI
4th Aug 2026831 AMAQI
4th Aug 2026822 AMAQI
4th Aug 2026783 AMAQI
4th Aug 2026764 AMAQI

28°C24/34°C

4th Aug 2026795 AMAQI
4th Aug 2026826 AMAQI
4th Aug 2026837 AMAQI
4th Aug 2026908 AMAQI
4th Aug 2026899 AMAQI
4th Aug 20267810 AMAQI
4th Aug 20266811 AMAQI
4th Aug 20266412 PMAQI
4th Aug 2026721 PMAQI
4th Aug 2026722 PMAQI
4th Aug 2026643 PMAQI
4th Aug 2026844 PMAQI
4th Aug 2026765 PMAQI
4th Aug 2026686 PMAQI
4th Aug 2026987 PMAQI
4th Aug 20261208 PMAQI
4th Aug 2026869 PMAQI
4th Aug 20266010 PMAQI
4th Aug 20266811 PMAQI
5th Aug 20266212 AMAQI
5th Aug 2026381 AMAQI
5th Aug 2026302 AMAQI
5th Aug 2026363 AMAQI
5th Aug 2026314 AMAQI

29°C25/35°C

5th Aug 2026425 AMAQI
5th Aug 2026186 AMAQI
5th Aug 2026227 AMAQI
5th Aug 2026528 AMAQI
5th Aug 2026389 AMAQI
5th Aug 20262710 AMAQI
5th Aug 20261611 AMAQI
5th Aug 20262012 PMAQI
5th Aug 2026291 PMAQI
5th Aug 2026272 PMAQI
5th Aug 2026293 PMAQI
5th Aug 2026514 PMAQI
5th Aug 2026445 PMAQI
5th Aug 2026446 PMAQI
5th Aug 2026637 PMAQI
5th Aug 2026578 PMAQI
5th Aug 2026829 PMAQI
5th Aug 20268410 PMAQI
5th Aug 20267611 PMAQI
6th Aug 20267412 AMAQI
6th Aug 2026811 AMAQI
6th Aug 2026982 AMAQI
6th Aug 2026863 AMAQI
6th Aug 2026854 AMAQI

29°C25/34°C

6th Aug 2026945 AMAQI
6th Aug 2026856 AMAQI
6th Aug 2026867 AMAQI
6th Aug 2026698 AMAQI
6th Aug 2026679 AMAQI
6th Aug 20265410 AMAQI
6th Aug 20264011 AMAQI
6th Aug 20262512 PMAQI
6th Aug 2026381 PMAQI
6th Aug 2026452 PMAQI
6th Aug 2026383 PMAQI
6th Aug 2026484 PMAQI
6th Aug 2026425 PMAQI
6th Aug 2026386 PMAQI
6th Aug 2026407 PMAQI
6th Aug 2026588 PMAQI
6th Aug 2026679 PMAQI
6th Aug 20267810 PMAQI
6th Aug 20269011 PMAQI
7th Aug 20269212 AMAQI
7th Aug 20261081 AMAQI
7th Aug 20261032 AMAQI
7th Aug 20261083 AMAQI
7th Aug 2026994 AMAQI

30°C26/35°C

7th Aug 20261025 AMAQI
7th Aug 2026836 AMAQI
7th Aug 2026677 AMAQI
7th Aug 2026608 AMAQI
7th Aug 2026599 AMAQI
7th Aug 20266010 AMAQI
7th Aug 20266011 AMAQI
7th Aug 20266312 PMAQI
7th Aug 2026681 PMAQI
7th Aug 2026362 PMAQI
7th Aug 2026253 PMAQI
7th Aug 2026464 PMAQI
7th Aug 2026565 PMAQI
7th Aug 2026586 PMAQI
7th Aug 2026697 PMAQI
7th Aug 20261028 PMAQI
7th Aug 20261029 PMAQI
7th Aug 202613210 PMAQI
7th Aug 20268511 PMAQI
8th Aug 20267812 AMAQI
8th Aug 2026941 AMAQI
8th Aug 2026862 AMAQI
8th Aug 2026743 AMAQI
8th Aug 2026634 AMAQI

30°C25/35°C

8th Aug 2026605 AMAQI
8th Aug 2026466 AMAQI
8th Aug 2026507 AMAQI
8th Aug 2026218 AMAQI
8th Aug 2026339 AMAQI
8th Aug 20261810 AMAQI
8th Aug 20261011 AMAQI
8th Aug 20261212 PMAQI
8th Aug 2026161 PMAQI
8th Aug 2026212 PMAQI
8th Aug 2026233 PMAQI
8th Aug 2026274 PMAQI
8th Aug 2026405 PMAQI
8th Aug 2026386 PMAQI
8th Aug 2026317 PMAQI
8th Aug 2026298 PMAQI
8th Aug 2026299 PMAQI
8th Aug 20261410 PMAQI
8th Aug 20261011 PMAQI
9th Aug 20261712 AMAQI
9th Aug 2026121 AMAQI
9th Aug 2026122 AMAQI
9th Aug 2026173 AMAQI
9th Aug 2026144 AMAQI

29°C23/35°C

9th Aug 2026105 AMAQI
9th Aug 2026106 AMAQI
9th Aug 202687 AMAQI
9th Aug 202688 AMAQI
9th Aug 202689 AMAQI
9th Aug 20261010 AMAQI
9th Aug 20261011 AMAQI
9th Aug 20261012 PMAQI
9th Aug 2026101 PMAQI
9th Aug 2026122 PMAQI
9th Aug 2026123 PMAQI
9th Aug 2026124 PMAQI
9th Aug 2026275 PMAQI
9th Aug 2026186 PMAQI
9th Aug 202687 PMAQI
9th Aug 202688 PMAQI
9th Aug 202689 PMAQI
9th Aug 2026810 PMAQI
9th Aug 2026811 PMAQI
10th Aug 2026812 AMAQI
10th Aug 202681 AMAQI
10th Aug 202662 AMAQI
10th Aug 2026253 AMAQI
10th Aug 2026214 AMAQI

26°C22/31°C

10th Aug 2026175 AMAQI
10th Aug 2026146 AMAQI
10th Aug 2026127 AMAQI
10th Aug 2026128 AMAQI
10th Aug 2026149 AMAQI
10th Aug 20261210 AMAQI
10th Aug 20261211 AMAQI
10th Aug 20262512 PMAQI
10th Aug 2026251 PMAQI
10th Aug 2026272 PMAQI
10th Aug 2026293 PMAQI
10th Aug 2026274 PMAQI
10th Aug 2026275 PMAQI
10th Aug 2026296 PMAQI
10th Aug 2026277 PMAQI
10th Aug 2026298 PMAQI
10th Aug 2026299 PMAQI
10th Aug 20262710 PMAQI
10th Aug 20262911 PMAQI
11th Aug 20262912 AMAQI
11th Aug 2026311 AMAQI
11th Aug 2026292 AMAQI
11th Aug 2026293 AMAQI
11th Aug 2026334 AMAQI

27°C23/31°C

11th Aug 2026295 AMAQI
11th Aug 2026256 AMAQI
11th Aug 2026277 AMAQI
11th Aug 2026258 AMAQI
11th Aug 2026279 AMAQI
11th Aug 20262910 AMAQI
11th Aug 20262511 AMAQI
11th Aug 20262512 PMAQI
11th Aug 2026291 PMAQI
11th Aug 2026252 PMAQI
11th Aug 2026293 PMAQI
11th Aug 2026254 PMAQI
11th Aug 2026235 PMAQI
11th Aug 2026236 PMAQI
11th Aug 2026217 PMAQI
11th Aug 2026218 PMAQI
11th Aug 2026239 PMAQI
11th Aug 20262110 PMAQI
11th Aug 20262511 PMAQI
12th Aug 20262512 AMAQI
12th Aug 2026291 AMAQI
12th Aug 2026292 AMAQI
12th Aug 2026273 AMAQI
12th Aug 2026254 AMAQI

26°C22/32°C

12th Aug 2026255 AMAQI
12th Aug 2026236 AMAQI
12th Aug 2026237 AMAQI
12th Aug 2026218 AMAQI
12th Aug 2026259 AMAQI
12th Aug 20262510 AMAQI
12th Aug 20262711 AMAQI
12th Aug 20262512 PMAQI
12th Aug 2026251 PMAQI
12th Aug 2026252 PMAQI
12th Aug 2026273 PMAQI
12th Aug 2026294 PMAQI
12th Aug 2026365 PMAQI
12th Aug 2026296 PMAQI
12th Aug 2026297 PMAQI
12th Aug 2026368 PMAQI
12th Aug 2026299 PMAQI
12th Aug 20262710 PMAQI
12th Aug 20262911 PMAQI
13th Aug 20262912 AMAQI
13th Aug 2026251 AMAQI
13th Aug 2026272 AMAQI
13th Aug 2026293 AMAQI
13th Aug 2026254 AMAQI

24°C18/30°C

13th Aug 2026255 AMAQI
13th Aug 2026256 AMAQI
13th Aug 2026257 AMAQI
13th Aug 2026298 AMAQI
13th Aug 2026259 AMAQI
13th Aug 20262510 AMAQI
13th Aug 20263311 AMAQI
13th Aug 20263312 PMAQI
13th Aug 2026331 PMAQI
13th Aug 2026292 PMAQI
13th Aug 2026293 PMAQI
13th Aug 2026274 PMAQI
13th Aug 2026315 PMAQI
13th Aug 2026296 PMAQI
13th Aug 2026277 PMAQI
13th Aug 2026258 PMAQI
13th Aug 2026259 PMAQI
13th Aug 20262510 PMAQI
13th Aug 20262911 PMAQI
14th Aug 20262912 AMAQI
14th Aug 2026291 AMAQI
14th Aug 2026272 AMAQI
14th Aug 2026293 AMAQI
14th Aug 2026254 AMAQI

26°C21/31°C

14th Aug 2026275 AMAQI
14th Aug 2026256 AMAQI
14th Aug 2026257 AMAQI
14th Aug 2026258 AMAQI
14th Aug 2026259 AMAQI
14th Aug 20262510 AMAQI
14th Aug 20262511 AMAQI
14th Aug 20262912 PMAQI
14th Aug 2026251 PMAQI
14th Aug 2026252 PMAQI
14th Aug 2026293 PMAQI
14th Aug 2026254 PMAQI
14th Aug 2026295 PMAQI
14th Aug 2026306 PMAQI
14th Aug 2026237 PMAQI
14th Aug 2026258 PMAQI
14th Aug 2026279 PMAQI
14th Aug 20263110 PMAQI
14th Aug 20264011 PMAQI
15th Aug 20265012 AMAQI
15th Aug 2026571 AMAQI
15th Aug 2026522 AMAQI
15th Aug 2026573 AMAQI
15th Aug 2026574 AMAQI

26°C22/30°C

15th Aug 2026605 AMAQI
15th Aug 2026466 AMAQI
15th Aug 2026487 AMAQI
15th Aug 2026508 AMAQI
15th Aug 2026529 AMAQI
15th Aug 20265410 AMAQI
15th Aug 20266011 AMAQI
15th Aug 20265812 PMAQI
15th Aug 2026591 PMAQI
15th Aug 2026562 PMAQI
15th Aug 2026553 PMAQI
15th Aug 2026534 PMAQI
15th Aug 2026605 PMAQI
15th Aug 2026606 PMAQI
15th Aug 2026387 PMAQI
15th Aug 2026528 PMAQI
15th Aug 2026609 PMAQI
15th Aug 20266610 PMAQI
15th Aug 20266711 PMAQI
16th Aug 20265612 AMAQI
16th Aug 2026511 AMAQI
16th Aug 2026602 AMAQI
16th Aug 2026693 AMAQI
16th Aug 2026604 AMAQI

25°C23/27°C

16th Aug 2026295 AMAQI
5 AM
16th Aug 2026316 AMAQI
16th Aug 2026317 AMAQI
16th Aug 2026318 AMAQI
16th Aug 2026319 AMAQI
16th Aug 20263610 AMAQI
16th Aug 20265411 AMAQI
16th Aug 20265612 PMAQI
12 PM
16th Aug 2026361 PMAQI
16th Aug 2026272 PMAQI
16th Aug 2026183 PMAQI
16th Aug 2026274 PMAQI
16th Aug 2026545 PMAQI
16th Aug 2026516 PMAQI
16th Aug 2026407 PMAQI
7 PM
16th Aug 2026318 PMAQI
16th Aug 2026259 PMAQI
16th Aug 20262310 PMAQI
16th Aug 20262311 PMAQI
12 AM
4 AM

24°C22/27°C

Day time
Avg. Highest Time
7 PM

45AQI

1 hours / Day
30 hours / Month
Avg. Lowest Time
11 AM - 3 PM

39AQI

5 hours / Day
150 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 7 PM to 7 PM (Avg. 45), while the lowest AQI was between 11 AM to 3 PM (Avg. 39).
Night time
Avg. Highest Time
12 AM - 3 AM

46AQI

4 hours / Day
120 hours / Month
Avg. Lowest Time
4 AM

43AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 3 AM (Avg. 46), while the lowest AQI was between 4 AM to 4 AM (Avg. 43).

2026 Days Vs Air Quality

Sinjangdong, Osan, Gyeonggi, South Korea

2026

41%

93

48%

107

11%

24

0.4%

1

Total number of days with different AQI categories in last 228 days in 2026 (137 days remaining)

Good
93 Days
Moderate
107 Days
Poor
24 Days
Unhealthy
1 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 41%

Health Risk Level:

Significant

In 2026, 41% of 228 days were within WHO’s safe air quality limits, and 59% exceeded them. The risk of health issues is Significant, especially for those with existing respiratory or heart conditions.

Annual Air Quality Insights

Sinjangdong, Osan, Gyeonggi, 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
37AQI (US)
2nd January 2026
45AQI (US)
3rd January 2026
71AQI (US)
4th January 2026
85AQI (US)
5th January 2026
74AQI (US)
6th January 2026
73AQI (US)
7th January 2026
70AQI (US)
8th January 2026
40AQI (US)
9th January 2026
57AQI (US)
10th January 2026
73AQI (US)
11th January 2026
48AQI (US)
12th January 2026
49AQI (US)
13th January 2026
51AQI (US)
14th January 2026
50AQI (US)
15th January 2026
99AQI (US)
16th January 2026
138AQI (US)
17th January 2026
142AQI (US)
18th January 2026
110AQI (US)
19th January 2026
73AQI (US)
20th January 2026
50AQI (US)
21st January 2026
43AQI (US)
22nd January 2026
36AQI (US)
23rd January 2026
60AQI (US)
24th January 2026
69AQI (US)
25th January 2026
36AQI (US)
26th January 2026
56AQI (US)
27th January 2026
70AQI (US)
28th January 2026
36AQI (US)
29th January 2026
51AQI (US)
30th January 2026
55AQI (US)
31st January 2026
65AQI (US)
1st February 2026
70AQI (US)
2nd February 2026
73AQI (US)
3rd February 2026
64AQI (US)
4th February 2026
121AQI (US)
5th February 2026
140AQI (US)
6th February 2026
65AQI (US)
7th February 2026
40AQI (US)
8th February 2026
46AQI (US)
9th February 2026
51AQI (US)
10th February 2026
88AQI (US)
11th February 2026
117AQI (US)
12th February 2026
124AQI (US)
13th February 2026
140AQI (US)
14th February 2026
151AQI (US)
15th February 2026
123AQI (US)
16th February 2026
51AQI (US)
17th February 2026
63AQI (US)
18th February 2026
61AQI (US)
19th February 2026
59AQI (US)
20th February 2026
88AQI (US)
21st February 2026
104AQI (US)
22nd February 2026
60AQI (US)
23rd February 2026
39AQI (US)
24th February 2026
35AQI (US)
25th February 2026
42AQI (US)
26th February 2026
36AQI (US)
27th February 2026
27AQI (US)
28th February 2026
39AQI (US)
1st March 2026
44AQI (US)
2nd March 2026
22AQI (US)
3rd March 2026
40AQI (US)
4th March 2026
64AQI (US)
5th March 2026
103AQI (US)
6th March 2026
79AQI (US)
7th March 2026
66AQI (US)
8th March 2026
69AQI (US)
9th March 2026
101AQI (US)
10th March 2026
118AQI (US)
11th March 2026
96AQI (US)
12th March 2026
116AQI (US)
13th March 2026
52AQI (US)
14th March 2026
53AQI (US)
15th March 2026
94AQI (US)
16th March 2026
131AQI (US)
17th March 2026
133AQI (US)
18th March 2026
118AQI (US)
19th March 2026
56AQI (US)
20th March 2026
66AQI (US)
21st March 2026
97AQI (US)
22nd March 2026
86AQI (US)
23rd March 2026
120AQI (US)
24th March 2026
103AQI (US)
25th March 2026
86AQI (US)
26th March 2026
109AQI (US)
27th March 2026
120AQI (US)
28th March 2026
114AQI (US)
29th March 2026
97AQI (US)
30th March 2026
88AQI (US)
31st March 2026
45AQI (US)
1st April 2026
52AQI (US)
2nd April 2026
99AQI (US)
3rd April 2026
121AQI (US)
4th April 2026
56AQI (US)
5th April 2026
84AQI (US)
6th April 2026
52AQI (US)
7th April 2026
31AQI (US)
8th April 2026
52AQI (US)
9th April 2026
48AQI (US)
10th April 2026
41AQI (US)
11th April 2026
78AQI (US)
12th April 2026
76AQI (US)
13th April 2026
81AQI (US)
14th April 2026
86AQI (US)
15th April 2026
120AQI (US)
16th April 2026
51AQI (US)
17th April 2026
18th April 2026
51AQI (US)
19th April 2026
64AQI (US)
20th April 2026
67AQI (US)
21st April 2026
65AQI (US)
22nd April 2026
23rd April 2026
49AQI (US)
24th April 2026
38AQI (US)
25th April 2026
65AQI (US)
26th April 2026
57AQI (US)
27th April 2026
57AQI (US)
28th April 2026
43AQI (US)
29th April 2026
51AQI (US)
30th April 2026
54AQI (US)
1st May 2026
49AQI (US)
2nd May 2026
99AQI (US)
3rd May 2026
44AQI (US)
4th May 2026
32AQI (US)
5th May 2026
44AQI (US)
6th May 2026
35AQI (US)
7th May 2026
38AQI (US)
8th May 2026
37AQI (US)
9th May 2026
10th May 2026
37AQI (US)
11th May 2026
31AQI (US)
12th May 2026
39AQI (US)
13th May 2026
52AQI (US)
14th May 2026
55AQI (US)
15th May 2026
77AQI (US)
16th May 2026
78AQI (US)
17th May 2026
66AQI (US)
18th May 2026
56AQI (US)
19th May 2026
53AQI (US)
20th May 2026
63AQI (US)
21st May 2026
68AQI (US)
22nd May 2026
76AQI (US)
23rd May 2026
71AQI (US)
24th May 2026
70AQI (US)
25th May 2026
64AQI (US)
26th May 2026
49AQI (US)
27th May 2026
35AQI (US)
28th May 2026
37AQI (US)
29th May 2026
62AQI (US)
30th May 2026
62AQI (US)
31st May 2026
44AQI (US)
1st June 2026
44AQI (US)
2nd June 2026
62AQI (US)
3rd June 2026
82AQI (US)
4th June 2026
75AQI (US)
5th June 2026
27AQI (US)
6th June 2026
39AQI (US)
7th June 2026
25AQI (US)
8th June 2026
38AQI (US)
9th June 2026
41AQI (US)
10th June 2026
54AQI (US)
11th June 2026
62AQI (US)
12th June 2026
55AQI (US)
13th June 2026
41AQI (US)
14th June 2026
52AQI (US)
15th June 2026
48AQI (US)
16th June 2026
63AQI (US)
17th June 2026
74AQI (US)
18th June 2026
57AQI (US)
19th June 2026
66AQI (US)
20th June 2026
20AQI (US)
21st June 2026
18AQI (US)
22nd June 2026
26AQI (US)
23rd June 2026
45AQI (US)
24th June 2026
15AQI (US)
25th June 2026
23AQI (US)
26th June 2026
35AQI (US)
27th June 2026
63AQI (US)
28th June 2026
55AQI (US)
29th June 2026
51AQI (US)
30th June 2026
48AQI (US)
1st July 2026
49AQI (US)
2nd July 2026
34AQI (US)
3rd July 2026
25AQI (US)
4th July 2026
53AQI (US)
5th July 2026
37AQI (US)
6th July 2026
38AQI (US)
7th July 2026
39AQI (US)
8th July 2026
37AQI (US)
9th July 2026
20AQI (US)
10th July 2026
29AQI (US)
11th July 2026
37AQI (US)
12th July 2026
66AQI (US)
13th July 2026
44AQI (US)
14th July 2026
29AQI (US)
15th July 2026
45AQI (US)
16th July 2026
63AQI (US)
17th July 2026
82AQI (US)
18th July 2026
55AQI (US)
19th July 2026
44AQI (US)
20th July 2026
34AQI (US)
21st July 2026
34AQI (US)
22nd July 2026
43AQI (US)
23rd July 2026
62AQI (US)
24th July 2026
46AQI (US)
25th July 2026
32AQI (US)
26th July 2026
26AQI (US)
27th July 2026
27AQI (US)
28th July 2026
43AQI (US)
29th July 2026
28AQI (US)
30th July 2026
29AQI (US)
31st July 2026
49AQI (US)
1st August 2026
86AQI (US)
2nd August 2026
58AQI (US)
3rd August 2026
58AQI (US)
4th August 2026
79AQI (US)
5th August 2026
42AQI (US)
6th August 2026
64AQI (US)
7th August 2026
77AQI (US)
8th August 2026
38AQI (US)
9th August 2026
12AQI (US)
10th August 2026
20AQI (US)
11th August 2026
26AQI (US)
12th August 2026
27AQI (US)
13th August 2026
28AQI (US)
14th August 2026
27AQI (US)
15th August 2026
55AQI (US)
16th August 2026
40AQI (US)
17th August 2026
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

65AQI (US)

76AQI (US)

87AQI (US)

64AQI (US)

54AQI (US)

47AQI (US)

41AQI (US)

46AQI (US)

No. of days

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

202661AQI (US)

11
17
3
8
12
7
1
4
15
12
6
20
2
14
16
16
14
25
6
9
7
93
107
24
1

Highest AQI (US) recorded in

March

87AQI (US)

Lowest AQI (US) recorded in

July

41AQI (US)

202566AQI (US)

1
24
5
1
1
26
1
2
18
11
1
29
3
28
3
26
1
12
19
18
13
24
6
16
15
1
25
3
1
3
25
3
85
254
24
2

Highest AQI (US) recorded in

March

89AQI (US)

Lowest AQI (US) recorded in

September

44AQI (US)

202463AQI (US)

6
17
7
10
12
6
1
4
24
3
4
25
1
11
20
4
26
20
10
1
7
23
1
20
10
14
17
8
21
1
5
26
113
231
20
1

Highest AQI (US) recorded in

January

76AQI (US)

Lowest AQI (US) recorded in

September

45AQI (US)

202369AQI (US)

5
17
6
3
1
19
5
3
1
16
14
2
22
5
1
7
24
4
26
9
20
2
12
19
16
14
11
20
11
17
1
10
15
6
89
229
39
7

Highest AQI (US) recorded in

February

98AQI (US)

Lowest AQI (US) recorded in

September

51AQI (US)

202268AQI (US)

2
19
7
2
2
12
5
2
5
19
7
6
23
1
9
21
17
13
5
16
1
17
9
2
13
15
3
5
22
3
4
25
2
86
194
30
4

Highest AQI (US) recorded in

February

89AQI (US)

Lowest AQI (US) recorded in

August

27AQI (US)

202166AQI (US)

6
22
2
3
18
4
3
3
20
6
1
1
9
20
1
8
19
2
1
1
5
24
1
10
20
1
15
16
25
5
14
17
8
19
1
2
8
16
7
114
216
25
6
2
1

Highest AQI (US) recorded in

March

88AQI (US)

Lowest AQI (US) recorded in

September

37AQI (US)

202061AQI (US)

3
9
1
4
17
5
12
1
3
26
1
18
13
18
13
20
10
10
19
2
6
19
5
7
18
6
94
156
16

Highest AQI (US) recorded in

December

76AQI (US)

Lowest AQI (US) recorded in

September

44AQI (US)

Most & Least Polluted Years Over the Last 7 Years

Most Polluted Year Recorded
2023(Avg.)
69AQI (US)
Least Polluted Year Recorded
2020(Avg.)
61AQI (US)

Sinjangdong's annual 2026 AQI (US) (61) shows an average percentage change of -6.7% (improved AQI (US)) compared to previous years: 2020 (61), 2021 (66), 2022 (68), 2023 (69), 2024 (63), 2025 (66).