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HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

Sihwa, Ansan, Gyeonggi, South Korea Historical Air Quality Analysis

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

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

August Air Quality Analysis

Sihwa, Ansan, Gyeonggi, South Korea

2022
2023
2024
2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
14th Aug 2023
83AQI
Lowest AQI recorded on
9th Aug 2026
16AQI

Same Day Analysis (15th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 3rd highest AQI at 54 of Moderate air quality, showing improvement over 2024 and 2023 on the same day.

Day & Night AQI Trend: 14th Aug - 15th Aug 2026

Sihwa, Ansan, Gyeonggi, South Korea

AQI
Day
Night
.

5 AM14th Aug 2026

7 PM

4 AM15th Aug 2026

Day time
Avg. Highest Time
11AM14th Aug

47AQI

Avg. Lowest Time
6AM14th Aug

21AQI

Night time
Avg. Highest Time
1AM15th Aug

58AQI

Avg. Lowest Time
9PM14th Aug

29AQI

In the last 24 hours,

Sihwa's AQI reached its highest point of 58 at 1 AM during the Night, while the lowest point, 21, was recorded at 6 AM during the Day between 14th Aug and 15th Aug 2026.

Day & Night AQI Trend : Jul - Aug 2026

Sihwa, Ansan, Gyeonggi, South Korea

JulAug
17th - 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
17th Jul 2026505 AMAQI
17th Jul 2026496 AMAQI
17th Jul 2026507 AMAQI
17th Jul 2026548 AMAQI
17th Jul 2026719 AMAQI
17th Jul 20267310 AMAQI
17th Jul 20267611 AMAQI
17th Jul 20267612 PMAQI
17th Jul 2026881 PMAQI
17th Jul 2026972 PMAQI
17th Jul 2026983 PMAQI
17th Jul 20261034 PMAQI
17th Jul 20261115 PMAQI
17th Jul 2026996 PMAQI
17th Jul 2026997 PMAQI
17th Jul 2026978 PMAQI
17th Jul 2026929 PMAQI
17th Jul 20269710 PMAQI
17th Jul 202611811 PMAQI
18th Jul 202614812 AMAQI
18th Jul 20261261 AMAQI
18th Jul 20261062 AMAQI
18th Jul 2026903 AMAQI
18th Jul 2026874 AMAQI

24°C23/27°C

18th Jul 2026765 AMAQI
18th Jul 2026586 AMAQI
18th Jul 2026467 AMAQI
18th Jul 2026468 AMAQI
18th Jul 2026299 AMAQI
18th Jul 20261610 AMAQI
18th Jul 20263911 AMAQI
18th Jul 20264012 PMAQI
18th Jul 2026391 PMAQI
18th Jul 2026312 PMAQI
18th Jul 2026283 PMAQI
18th Jul 2026284 PMAQI
18th Jul 2026345 PMAQI
18th Jul 2026316 PMAQI
18th Jul 2026197 PMAQI
18th Jul 2026188 PMAQI
18th Jul 2026129 PMAQI
18th Jul 20261210 PMAQI
18th Jul 20261411 PMAQI
19th Jul 20261012 AMAQI
19th Jul 202681 AMAQI
19th Jul 202682 AMAQI
19th Jul 202683 AMAQI
19th Jul 202684 AMAQI

23°C22/24°C

19th Jul 2026145 AMAQI
19th Jul 2026176 AMAQI
19th Jul 2026257 AMAQI
19th Jul 2026258 AMAQI
19th Jul 2026179 AMAQI
19th Jul 20261510 AMAQI
19th Jul 20261411 AMAQI
19th Jul 20262112 PMAQI
19th Jul 2026401 PMAQI
19th Jul 2026422 PMAQI
19th Jul 2026313 PMAQI
19th Jul 2026424 PMAQI
19th Jul 2026425 PMAQI
19th Jul 2026226 PMAQI
19th Jul 2026277 PMAQI
19th Jul 2026258 PMAQI
19th Jul 2026199 PMAQI
19th Jul 20261910 PMAQI
19th Jul 20262111 PMAQI
20th Jul 20261212 AMAQI
20th Jul 2026121 AMAQI
20th Jul 2026272 AMAQI
20th Jul 2026273 AMAQI
20th Jul 2026174 AMAQI

23°C23/24°C

20th Jul 2026275 AMAQI
20th Jul 2026386 AMAQI
20th Jul 2026407 AMAQI
20th Jul 2026408 AMAQI
20th Jul 2026409 AMAQI
20th Jul 20264210 AMAQI
20th Jul 20264611 AMAQI
20th Jul 20264612 PMAQI
20th Jul 2026381 PMAQI
20th Jul 2026342 PMAQI
20th Jul 2026273 PMAQI
20th Jul 2026234 PMAQI
20th Jul 2026305 PMAQI
20th Jul 2026216 PMAQI
20th Jul 2026237 PMAQI
20th Jul 2026218 PMAQI
20th Jul 2026219 PMAQI
20th Jul 20262110 PMAQI
20th Jul 20262711 PMAQI
21st Jul 20263612 AMAQI
21st Jul 2026401 AMAQI
21st Jul 2026482 AMAQI
21st Jul 2026463 AMAQI
21st Jul 2026444 AMAQI

24°C23/24°C

21st Jul 2026405 AMAQI
21st Jul 2026296 AMAQI
21st Jul 2026297 AMAQI
21st Jul 2026298 AMAQI
21st Jul 2026279 AMAQI
21st Jul 20262710 AMAQI
21st Jul 20262911 AMAQI
21st Jul 2026291 PMAQI
21st Jul 2026292 PMAQI
21st Jul 2026253 PMAQI
21st Jul 2026274 PMAQI
21st Jul 2026275 PMAQI
21st Jul 2026296 PMAQI
21st Jul 2026807 PMAQI
21st Jul 2026218 PMAQI
21st Jul 2026219 PMAQI
21st Jul 20262110 PMAQI
21st Jul 20264211 PMAQI
22nd Jul 20264412 AMAQI
22nd Jul 2026421 AMAQI
22nd Jul 2026322 AMAQI
22nd Jul 2026173 AMAQI
22nd Jul 2026144 AMAQI

24°C24/25°C

22nd Jul 2026275 AMAQI
22nd Jul 2026316 AMAQI
22nd Jul 2026487 AMAQI
22nd Jul 2026578 AMAQI
22nd Jul 2026529 AMAQI
22nd Jul 20266710 AMAQI
22nd Jul 20266711 AMAQI
22nd Jul 20266212 PMAQI
22nd Jul 2026561 PMAQI
22nd Jul 2026582 PMAQI
22nd Jul 2026603 PMAQI
22nd Jul 20261084 PMAQI
22nd Jul 2026745 PMAQI
22nd Jul 2026646 PMAQI
22nd Jul 2026627 PMAQI
22nd Jul 2026488 PMAQI
22nd Jul 2026529 PMAQI
22nd Jul 20265010 PMAQI
22nd Jul 20265111 PMAQI
23rd Jul 20265612 AMAQI
23rd Jul 2026511 AMAQI
23rd Jul 2026452 AMAQI
23rd Jul 2026343 AMAQI
23rd Jul 2026294 AMAQI

25°C23/26°C

23rd Jul 2026465 AMAQI
23rd Jul 2026446 AMAQI
23rd Jul 2026607 AMAQI
23rd Jul 2026508 AMAQI
23rd Jul 2026549 AMAQI
23rd Jul 20265110 AMAQI
23rd Jul 20264611 AMAQI
23rd Jul 20264612 PMAQI
23rd Jul 2026461 PMAQI
23rd Jul 2026672 PMAQI
23rd Jul 2026593 PMAQI
23rd Jul 2026554 PMAQI
23rd Jul 2026565 PMAQI
23rd Jul 2026516 PMAQI
23rd Jul 2026497 PMAQI
23rd Jul 2026518 PMAQI
23rd Jul 2026559 PMAQI
23rd Jul 20266710 PMAQI
23rd Jul 20267111 PMAQI
24th Jul 20266212 AMAQI
24th Jul 2026541 AMAQI
24th Jul 2026542 AMAQI
24th Jul 2026453 AMAQI
24th Jul 2026444 AMAQI

25°C24/26°C

24th Jul 2026445 AMAQI
24th Jul 2026426 AMAQI
24th Jul 2026517 AMAQI
24th Jul 2026588 AMAQI
24th Jul 2026559 AMAQI
24th Jul 20265210 AMAQI
24th Jul 20265211 AMAQI
24th Jul 20265412 PMAQI
24th Jul 2026341 PMAQI
24th Jul 2026352 PMAQI
24th Jul 2026303 PMAQI
24th Jul 2026364 PMAQI
24th Jul 2026425 PMAQI
24th Jul 2026406 PMAQI
24th Jul 2026487 PMAQI
24th Jul 2026508 PMAQI
24th Jul 2026529 PMAQI
24th Jul 20264010 PMAQI
24th Jul 20263311 PMAQI
25th Jul 20262912 AMAQI
25th Jul 2026271 AMAQI
25th Jul 2026312 AMAQI
25th Jul 2026293 AMAQI
25th Jul 2026294 AMAQI

26°C24/28°C

25th Jul 2026315 AMAQI
25th Jul 2026296 AMAQI
25th Jul 2026317 AMAQI
25th Jul 2026368 AMAQI
25th Jul 2026339 AMAQI
25th Jul 20262910 AMAQI
25th Jul 20263111 AMAQI
25th Jul 20263312 PMAQI
25th Jul 2026401 PMAQI
25th Jul 2026362 PMAQI
25th Jul 2026313 PMAQI
25th Jul 2026314 PMAQI
25th Jul 2026315 PMAQI
25th Jul 2026276 PMAQI
25th Jul 2026257 PMAQI
25th Jul 2026238 PMAQI
25th Jul 2026259 PMAQI
25th Jul 20262110 PMAQI
25th Jul 20262111 PMAQI
26th Jul 20262312 AMAQI
26th Jul 2026251 AMAQI
26th Jul 2026212 AMAQI
26th Jul 2026233 AMAQI
26th Jul 2026214 AMAQI

26°C25/28°C

26th Jul 2026235 AMAQI
26th Jul 2026276 AMAQI
26th Jul 2026217 AMAQI
26th Jul 2026238 AMAQI
26th Jul 2026219 AMAQI
26th Jul 20262310 AMAQI
26th Jul 20262711 AMAQI
26th Jul 20262112 PMAQI
26th Jul 2026211 PMAQI
26th Jul 2026302 PMAQI
26th Jul 2026253 PMAQI
26th Jul 2026294 PMAQI
26th Jul 2026275 PMAQI
26th Jul 2026366 PMAQI
26th Jul 2026367 PMAQI
26th Jul 2026408 PMAQI
26th Jul 2026349 PMAQI
26th Jul 20263310 PMAQI
26th Jul 20262911 PMAQI
27th Jul 20262912 AMAQI
27th Jul 2026271 AMAQI
27th Jul 2026252 AMAQI
27th Jul 2026313 AMAQI
27th Jul 2026274 AMAQI

26°C24/28°C

27th Jul 2026255 AMAQI
27th Jul 2026296 AMAQI
27th Jul 2026337 AMAQI
27th Jul 2026298 AMAQI
27th Jul 2026299 AMAQI
27th Jul 20262910 AMAQI
27th Jul 20262511 AMAQI
27th Jul 20262912 PMAQI
27th Jul 2026251 PMAQI
27th Jul 2026252 PMAQI
27th Jul 2026253 PMAQI
27th Jul 2026344 PMAQI
27th Jul 2026295 PMAQI
27th Jul 2026426 PMAQI
27th Jul 2026607 PMAQI
27th Jul 2026428 PMAQI
27th Jul 2026369 PMAQI
27th Jul 20262310 PMAQI
27th Jul 20263211 PMAQI
28th Jul 20262512 AMAQI
28th Jul 2026271 AMAQI
28th Jul 2026422 AMAQI
28th Jul 2026333 AMAQI
28th Jul 2026314 AMAQI

26°C25/28°C

28th Jul 2026215 AMAQI
28th Jul 2026216 AMAQI
28th Jul 2026347 AMAQI
28th Jul 2026278 AMAQI
28th Jul 2026429 AMAQI
28th Jul 20264610 AMAQI
28th Jul 20264011 AMAQI
28th Jul 20264612 PMAQI
28th Jul 2026531 PMAQI
28th Jul 2026522 PMAQI
28th Jul 2026573 PMAQI
28th Jul 2026584 PMAQI
28th Jul 2026645 PMAQI
28th Jul 2026596 PMAQI
28th Jul 2026597 PMAQI
28th Jul 2026588 PMAQI
28th Jul 2026629 PMAQI
28th Jul 20265410 PMAQI
28th Jul 20264611 PMAQI
29th Jul 20264212 AMAQI
29th Jul 2026401 AMAQI
29th Jul 2026312 AMAQI
29th Jul 2026273 AMAQI
29th Jul 2026274 AMAQI

26°C25/28°C

29th Jul 2026235 AMAQI
29th Jul 2026216 AMAQI
29th Jul 2026217 AMAQI
29th Jul 2026278 AMAQI
29th Jul 2026299 AMAQI
29th Jul 20262310 AMAQI
29th Jul 20262111 AMAQI
29th Jul 20262312 PMAQI
29th Jul 2026291 PMAQI
29th Jul 2026292 PMAQI
29th Jul 2026273 PMAQI
29th Jul 2026214 PMAQI
29th Jul 2026215 PMAQI
29th Jul 2026216 PMAQI
29th Jul 2026237 PMAQI
29th Jul 2026238 PMAQI
29th Jul 2026259 PMAQI
29th Jul 20262510 PMAQI
29th Jul 20262111 PMAQI
30th Jul 20262712 AMAQI
30th Jul 2026251 AMAQI
30th Jul 2026232 AMAQI
30th Jul 2026213 AMAQI
30th Jul 2026214 AMAQI

26°C25/27°C

30th Jul 2026215 AMAQI
30th Jul 2026236 AMAQI
30th Jul 2026257 AMAQI
30th Jul 2026258 AMAQI
30th Jul 2026259 AMAQI
30th Jul 20262310 AMAQI
30th Jul 20262111 AMAQI
30th Jul 20262512 PMAQI
30th Jul 2026231 PMAQI
30th Jul 2026212 PMAQI
30th Jul 2026213 PMAQI
30th Jul 2026214 PMAQI
30th Jul 2026235 PMAQI
30th Jul 2026236 PMAQI
30th Jul 2026217 PMAQI
30th Jul 2026278 PMAQI
30th Jul 2026319 PMAQI
30th Jul 20263810 PMAQI
30th Jul 20263811 PMAQI
31st Jul 20263812 AMAQI
31st Jul 2026301 AMAQI
31st Jul 2026332 AMAQI
31st Jul 2026273 AMAQI
31st Jul 2026214 AMAQI

26°C24/28°C

31st Jul 2026305 AMAQI
31st Jul 2026276 AMAQI
31st Jul 2026217 AMAQI
31st Jul 2026238 AMAQI
31st Jul 2026279 AMAQI
31st Jul 20262510 AMAQI
31st Jul 20262111 AMAQI
31st Jul 20262712 PMAQI
31st Jul 2026271 PMAQI
31st Jul 2026292 PMAQI
31st Jul 2026343 PMAQI
31st Jul 2026384 PMAQI
31st Jul 2026425 PMAQI
31st Jul 2026426 PMAQI
31st Jul 2026577 PMAQI
31st Jul 2026558 PMAQI
31st Jul 2026549 PMAQI
31st Jul 20265810 PMAQI
31st Jul 20266011 PMAQI
1st Aug 20266212 AMAQI
1st Aug 2026671 AMAQI
1st Aug 2026662 AMAQI
1st Aug 2026683 AMAQI
1st Aug 2026854 AMAQI

27°C25/28°C

1st Aug 2026925 AMAQI
1st Aug 20261196 AMAQI
1st Aug 2026877 AMAQI
1st Aug 2026828 AMAQI
1st Aug 20261099 AMAQI
1st Aug 20267410 AMAQI
1st Aug 20265611 AMAQI
1st Aug 20264712 PMAQI
1st Aug 2026531 PMAQI
1st Aug 2026552 PMAQI
1st Aug 2026443 PMAQI
1st Aug 2026654 PMAQI
1st Aug 2026695 PMAQI
1st Aug 2026676 PMAQI
1st Aug 2026657 PMAQI
1st Aug 2026678 PMAQI
1st Aug 2026669 PMAQI
1st Aug 20265610 PMAQI
1st Aug 20264811 PMAQI
2nd Aug 20264612 AMAQI
2nd Aug 2026411 AMAQI
2nd Aug 2026442 AMAQI
2nd Aug 2026343 AMAQI
2nd Aug 2026224 AMAQI

27°C26/28°C

2nd Aug 2026405 AMAQI
2nd Aug 2026546 AMAQI
2nd Aug 2026337 AMAQI
2nd Aug 2026348 AMAQI
2nd Aug 2026409 AMAQI
2nd Aug 20262910 AMAQI
2nd Aug 20262511 AMAQI
2nd Aug 20262512 PMAQI
2nd Aug 2026231 PMAQI
2nd Aug 2026192 PMAQI
2nd Aug 2026173 PMAQI
2nd Aug 2026214 PMAQI
2nd Aug 2026295 PMAQI
2nd Aug 2026296 PMAQI
2nd Aug 2026297 PMAQI
2nd Aug 2026248 PMAQI
2nd Aug 2026249 PMAQI
2nd Aug 20262510 PMAQI
2nd Aug 20262411 PMAQI
3rd Aug 20261812 AMAQI
3rd Aug 2026221 AMAQI
3rd Aug 2026212 AMAQI
3rd Aug 2026163 AMAQI
3rd Aug 2026184 AMAQI

27°C25/29°C

3rd Aug 2026235 AMAQI
3rd Aug 2026296 AMAQI
3rd Aug 2026277 AMAQI
3rd Aug 2026488 AMAQI
3rd Aug 2026489 AMAQI
3rd Aug 20264410 AMAQI
3rd Aug 20264011 AMAQI
3rd Aug 20264812 PMAQI
3rd Aug 2026531 PMAQI
3rd Aug 2026582 PMAQI
3rd Aug 2026563 PMAQI
3rd Aug 2026594 PMAQI
3rd Aug 2026605 PMAQI
3rd Aug 2026626 PMAQI
3rd Aug 2026717 PMAQI
3rd Aug 2026638 PMAQI
3rd Aug 2026629 PMAQI
3rd Aug 20265710 PMAQI
3rd Aug 20265611 PMAQI
4th Aug 20265712 AMAQI
4th Aug 2026561 AMAQI
4th Aug 2026532 AMAQI
4th Aug 2026523 AMAQI
4th Aug 2026484 AMAQI

28°C26/30°C

4th Aug 2026515 AMAQI
4th Aug 2026546 AMAQI
4th Aug 2026577 AMAQI
4th Aug 2026588 AMAQI
4th Aug 2026639 AMAQI
4th Aug 20266610 AMAQI
4th Aug 20266711 AMAQI
4th Aug 20266712 PMAQI
4th Aug 2026701 PMAQI
4th Aug 2026662 PMAQI
4th Aug 2026853 PMAQI
4th Aug 2026894 PMAQI
4th Aug 2026945 PMAQI
4th Aug 2026876 PMAQI
4th Aug 2026887 PMAQI
4th Aug 2026808 PMAQI
4th Aug 2026889 PMAQI
4th Aug 20268710 PMAQI
4th Aug 20268811 PMAQI
5th Aug 20267412 AMAQI
5th Aug 2026441 AMAQI
5th Aug 2026212 AMAQI
5th Aug 2026213 AMAQI
5th Aug 2026214 AMAQI

29°C27/31°C

5th Aug 2026405 AMAQI
5th Aug 2026386 AMAQI
5th Aug 2026547 AMAQI
5th Aug 2026488 AMAQI
5th Aug 2026349 AMAQI
5th Aug 20262710 AMAQI
5th Aug 20262611 AMAQI
5th Aug 20263112 PMAQI
5th Aug 2026421 PMAQI
5th Aug 2026312 PMAQI
5th Aug 2026363 PMAQI
5th Aug 2026384 PMAQI
5th Aug 2026485 PMAQI
5th Aug 2026486 PMAQI
5th Aug 2026467 PMAQI
5th Aug 2026588 PMAQI
5th Aug 2026599 PMAQI
5th Aug 20265610 PMAQI
5th Aug 20265811 PMAQI
6th Aug 20264512 AMAQI
6th Aug 2026521 AMAQI
6th Aug 2026532 AMAQI
6th Aug 2026763 AMAQI
6th Aug 2026784 AMAQI

28°C26/31°C

6th Aug 2026765 AMAQI
6th Aug 2026926 AMAQI
6th Aug 2026847 AMAQI
6th Aug 2026928 AMAQI
6th Aug 2026509 AMAQI
6th Aug 20265310 AMAQI
6th Aug 20264611 AMAQI
6th Aug 20263312 PMAQI
6th Aug 2026501 PMAQI
6th Aug 2026482 PMAQI
6th Aug 2026483 PMAQI
6th Aug 2026514 PMAQI
6th Aug 2026445 PMAQI
6th Aug 2026386 PMAQI
6th Aug 2026497 PMAQI
6th Aug 2026678 PMAQI
6th Aug 2026729 PMAQI
6th Aug 20268210 PMAQI
6th Aug 20269211 PMAQI
7th Aug 202610212 AMAQI
7th Aug 20261001 AMAQI
7th Aug 20261022 AMAQI
7th Aug 2026863 AMAQI
7th Aug 2026894 AMAQI

29°C27/31°C

7th Aug 2026905 AMAQI
7th Aug 2026946 AMAQI
7th Aug 20261187 AMAQI
7th Aug 20261048 AMAQI
7th Aug 2026949 AMAQI
7th Aug 20269210 AMAQI
7th Aug 20269211 AMAQI
7th Aug 20268812 PMAQI
7th Aug 2026821 PMAQI
7th Aug 2026512 PMAQI
7th Aug 2026533 PMAQI
7th Aug 2026654 PMAQI
7th Aug 2026675 PMAQI
7th Aug 2026716 PMAQI
7th Aug 2026627 PMAQI
7th Aug 2026538 PMAQI
7th Aug 2026509 PMAQI
7th Aug 20265710 PMAQI
7th Aug 20265811 PMAQI
8th Aug 20265612 AMAQI
8th Aug 2026761 AMAQI
8th Aug 2026712 AMAQI
8th Aug 2026543 AMAQI
8th Aug 2026644 AMAQI

30°C28/32°C

8th Aug 2026675 AMAQI
8th Aug 2026316 AMAQI
8th Aug 2026427 AMAQI
8th Aug 2026318 AMAQI
8th Aug 2026319 AMAQI
8th Aug 20262510 AMAQI
8th Aug 20261711 AMAQI
8th Aug 20261712 PMAQI
8th Aug 2026211 PMAQI
8th Aug 2026172 PMAQI
8th Aug 2026173 PMAQI
8th Aug 2026174 PMAQI
8th Aug 2026145 PMAQI
8th Aug 2026226 PMAQI
8th Aug 2026287 PMAQI
8th Aug 2026318 PMAQI
8th Aug 2026149 PMAQI
8th Aug 20261710 PMAQI
8th Aug 20262111 PMAQI
9th Aug 20261912 AMAQI
9th Aug 2026141 AMAQI
9th Aug 2026142 AMAQI
9th Aug 2026213 AMAQI
9th Aug 2026234 AMAQI

29°C25/32°C

9th Aug 2026295 AMAQI
9th Aug 2026296 AMAQI
9th Aug 2026257 AMAQI
9th Aug 2026278 AMAQI
9th Aug 2026279 AMAQI
9th Aug 20262110 AMAQI
9th Aug 20261911 AMAQI
9th Aug 20261412 PMAQI
9th Aug 2026101 PMAQI
9th Aug 2026112 PMAQI
9th Aug 202693 PMAQI
9th Aug 202694 PMAQI
9th Aug 202685 PMAQI
9th Aug 202686 PMAQI
9th Aug 202687 PMAQI
9th Aug 202688 PMAQI
9th Aug 202689 PMAQI
9th Aug 2026810 PMAQI
9th Aug 20261411 PMAQI
10th Aug 20261712 AMAQI
10th Aug 2026141 AMAQI
10th Aug 2026162 AMAQI
10th Aug 2026233 AMAQI
10th Aug 2026254 AMAQI

26°C23/31°C

10th Aug 2026215 AMAQI
10th Aug 2026216 AMAQI
10th Aug 2026237 AMAQI
10th Aug 2026348 AMAQI
10th Aug 2026469 AMAQI
10th Aug 20264610 AMAQI
10th Aug 20264411 AMAQI
10th Aug 20263312 PMAQI
10th Aug 2026291 PMAQI
10th Aug 2026292 PMAQI
10th Aug 2026253 PMAQI
10th Aug 2026254 PMAQI
10th Aug 2026235 PMAQI
10th Aug 2026256 PMAQI
10th Aug 2026257 PMAQI
10th Aug 2026258 PMAQI
10th Aug 2026239 PMAQI
10th Aug 20262710 PMAQI
10th Aug 20262511 PMAQI
11th Aug 20262912 AMAQI
11th Aug 2026311 AMAQI
11th Aug 2026272 AMAQI
11th Aug 2026253 AMAQI
11th Aug 2026214 AMAQI

27°C24/29°C

11th Aug 2026235 AMAQI
11th Aug 2026236 AMAQI
11th Aug 2026237 AMAQI
11th Aug 2026238 AMAQI
11th Aug 2026299 AMAQI
11th Aug 20262710 AMAQI
11th Aug 20262511 AMAQI
11th Aug 20262512 PMAQI
11th Aug 2026271 PMAQI
11th Aug 2026252 PMAQI
11th Aug 2026333 PMAQI
11th Aug 2026254 PMAQI
11th Aug 2026295 PMAQI
11th Aug 2026296 PMAQI
11th Aug 2026367 PMAQI
11th Aug 2026238 PMAQI
11th Aug 2026389 PMAQI
11th Aug 20263610 PMAQI
11th Aug 20263811 PMAQI
12th Aug 20266212 AMAQI
12th Aug 2026591 AMAQI
12th Aug 2026362 AMAQI
12th Aug 2026293 AMAQI
12th Aug 2026254 AMAQI

27°C25/30°C

12th Aug 2026255 AMAQI
12th Aug 2026216 AMAQI
12th Aug 2026237 AMAQI
12th Aug 2026258 AMAQI
12th Aug 2026259 AMAQI
12th Aug 20262610 AMAQI
12th Aug 20262311 AMAQI
12th Aug 20262112 PMAQI
12th Aug 2026251 PMAQI
12th Aug 2026502 PMAQI
12th Aug 2026513 PMAQI
12th Aug 2026574 PMAQI
12th Aug 2026405 PMAQI
12th Aug 2026536 PMAQI
12th Aug 2026647 PMAQI
12th Aug 2026508 PMAQI
12th Aug 2026409 PMAQI
12th Aug 20263610 PMAQI
12th Aug 20262511 PMAQI
13th Aug 20263412 AMAQI
13th Aug 2026401 AMAQI
13th Aug 2026362 AMAQI
13th Aug 2026233 AMAQI
13th Aug 2026254 AMAQI

26°C22/30°C

13th Aug 2026255 AMAQI
13th Aug 2026296 AMAQI
13th Aug 2026367 AMAQI
13th Aug 2026248 AMAQI
13th Aug 2026409 AMAQI
13th Aug 20264010 AMAQI
13th Aug 20264611 AMAQI
13th Aug 20264112 PMAQI
13th Aug 2026391 PMAQI
13th Aug 2026292 PMAQI
13th Aug 2026283 PMAQI
13th Aug 2026404 PMAQI
13th Aug 2026505 PMAQI
13th Aug 2026466 PMAQI
13th Aug 2026407 PMAQI
13th Aug 2026318 PMAQI
13th Aug 2026319 PMAQI
13th Aug 20262510 PMAQI
13th Aug 20262311 PMAQI
14th Aug 20262712 AMAQI
14th Aug 2026561 AMAQI
14th Aug 2026482 AMAQI
14th Aug 2026273 AMAQI
14th Aug 2026254 AMAQI

26°C23/30°C

14th Aug 2026235 AMAQI
14th Aug 2026216 AMAQI
14th Aug 2026277 AMAQI
14th Aug 2026238 AMAQI
14th Aug 2026239 AMAQI
14th Aug 20264510 AMAQI
14th Aug 20264711 AMAQI
14th Aug 20262512 PMAQI
14th Aug 2026381 PMAQI
14th Aug 2026382 PMAQI
14th Aug 2026423 PMAQI
14th Aug 2026424 PMAQI
14th Aug 2026425 PMAQI
14th Aug 2026406 PMAQI
14th Aug 2026337 PMAQI
14th Aug 2026338 PMAQI
14th Aug 2026299 PMAQI
14th Aug 20263810 PMAQI
14th Aug 20263611 PMAQI
15th Aug 20264212 AMAQI
15th Aug 2026581 AMAQI
15th Aug 2026572 AMAQI
15th Aug 2026543 AMAQI
15th Aug 2026534 AMAQI

26°C25/28°C

15th Aug 2026535 AMAQI
5 AM
15th Aug 2026516 AMAQI
15th Aug 2026517 AMAQI
15th Aug 2026528 AMAQI
15th Aug 2026469 AMAQI
15th Aug 20264610 AMAQI
15th Aug 20264811 AMAQI
15th Aug 20265312 PMAQI
12 PM
15th Aug 2026651 PMAQI
15th Aug 2026722 PMAQI
15th Aug 2026803 PMAQI
15th Aug 2026954 PMAQI
15th Aug 2026575 PMAQI
15th Aug 2026596 PMAQI
15th Aug 2026407 PMAQI
7 PM
15th Aug 2026488 PMAQI
15th Aug 2026509 PMAQI
15th Aug 20264210 PMAQI
15th Aug 20263611 PMAQI
12 AM
4 AM

26°C25/26°C

Day time
Avg. Highest Time
7 PM

46AQI

1 hours / Day
30 hours / Month
Avg. Lowest Time
5 AM - 6 AM

40AQI

2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 7 PM to 7 PM (Avg. 46), while the lowest AQI was between 5 AM to 6 AM (Avg. 40).
Night time
Avg. Highest Time
12 AM - 1 AM

44AQI

2 hours / Day
60 hours / Month
Avg. Lowest Time
3 AM - 4 AM

37AQI

2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 1 AM (Avg. 44), while the lowest AQI was between 3 AM to 4 AM (Avg. 37).

2026 Days Vs Air Quality

Sihwa, Ansan, Gyeonggi, South Korea

2026

45%

101

42%

93

13%

29

0.4%

1

Total number of days with different AQI categories in last 227 days in 2026 (138 days remaining)

Good
101 Days
Moderate
93 Days
Poor
29 Days
Unhealthy
1 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 45%

Health Risk Level:

Significant

In 2026, 45% of 227 days were within WHO’s safe air quality limits, and 55% exceeded them. The risk of health issues is Significant, especially for those with existing respiratory or heart conditions.

Annual Air Quality Insights

Sihwa, Ansan, 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
26AQI (US)
2nd January 2026
36AQI (US)
3rd January 2026
56AQI (US)
4th January 2026
84AQI (US)
5th January 2026
50AQI (US)
6th January 2026
54AQI (US)
7th January 2026
67AQI (US)
8th January 2026
27AQI (US)
9th January 2026
57AQI (US)
10th January 2026
65AQI (US)
11th January 2026
26AQI (US)
12th January 2026
41AQI (US)
13th January 2026
44AQI (US)
14th January 2026
36AQI (US)
15th January 2026
96AQI (US)
16th January 2026
136AQI (US)
17th January 2026
116AQI (US)
18th January 2026
80AQI (US)
19th January 2026
62AQI (US)
20th January 2026
28AQI (US)
21st January 2026
31AQI (US)
22nd January 2026
29AQI (US)
23rd January 2026
53AQI (US)
24th January 2026
46AQI (US)
25th January 2026
20AQI (US)
26th January 2026
55AQI (US)
27th January 2026
51AQI (US)
28th January 2026
35AQI (US)
29th January 2026
46AQI (US)
30th January 2026
62AQI (US)
31st January 2026
58AQI (US)
1st February 2026
64AQI (US)
2nd February 2026
80AQI (US)
3rd February 2026
54AQI (US)
4th February 2026
120AQI (US)
5th February 2026
127AQI (US)
6th February 2026
67AQI (US)
7th February 2026
35AQI (US)
8th February 2026
50AQI (US)
9th February 2026
42AQI (US)
10th February 2026
101AQI (US)
11th February 2026
114AQI (US)
12th February 2026
107AQI (US)
13th February 2026
141AQI (US)
14th February 2026
139AQI (US)
15th February 2026
107AQI (US)
16th February 2026
43AQI (US)
17th February 2026
37AQI (US)
18th February 2026
49AQI (US)
19th February 2026
44AQI (US)
20th February 2026
90AQI (US)
21st February 2026
97AQI (US)
22nd February 2026
49AQI (US)
23rd February 2026
26AQI (US)
24th February 2026
37AQI (US)
25th February 2026
71AQI (US)
26th February 2026
47AQI (US)
27th February 2026
31AQI (US)
28th February 2026
42AQI (US)
1st March 2026
35AQI (US)
2nd March 2026
13AQI (US)
3rd March 2026
30AQI (US)
4th March 2026
70AQI (US)
5th March 2026
106AQI (US)
6th March 2026
78AQI (US)
7th March 2026
41AQI (US)
8th March 2026
56AQI (US)
9th March 2026
103AQI (US)
10th March 2026
81AQI (US)
11th March 2026
101AQI (US)
12th March 2026
113AQI (US)
13th March 2026
49AQI (US)
14th March 2026
68AQI (US)
15th March 2026
95AQI (US)
16th March 2026
141AQI (US)
17th March 2026
152AQI (US)
18th March 2026
118AQI (US)
19th March 2026
45AQI (US)
20th March 2026
61AQI (US)
21st March 2026
105AQI (US)
22nd March 2026
117AQI (US)
23rd March 2026
126AQI (US)
24th March 2026
121AQI (US)
25th March 2026
108AQI (US)
26th March 2026
98AQI (US)
27th March 2026
118AQI (US)
28th March 2026
106AQI (US)
29th March 2026
114AQI (US)
30th March 2026
103AQI (US)
31st March 2026
79AQI (US)
1st April 2026
95AQI (US)
2nd April 2026
98AQI (US)
3rd April 2026
141AQI (US)
4th April 2026
66AQI (US)
5th April 2026
79AQI (US)
6th April 2026
63AQI (US)
7th April 2026
28AQI (US)
8th April 2026
53AQI (US)
9th April 2026
50AQI (US)
10th April 2026
43AQI (US)
11th April 2026
86AQI (US)
12th April 2026
90AQI (US)
13th April 2026
86AQI (US)
14th April 2026
118AQI (US)
15th April 2026
141AQI (US)
16th April 2026
73AQI (US)
17th April 2026
18th April 2026
80AQI (US)
19th April 2026
89AQI (US)
20th April 2026
70AQI (US)
21st April 2026
71AQI (US)
22nd April 2026
23rd April 2026
49AQI (US)
24th April 2026
45AQI (US)
25th April 2026
72AQI (US)
26th April 2026
74AQI (US)
27th April 2026
50AQI (US)
28th April 2026
42AQI (US)
29th April 2026
53AQI (US)
30th April 2026
71AQI (US)
1st May 2026
57AQI (US)
2nd May 2026
126AQI (US)
3rd May 2026
61AQI (US)
4th May 2026
28AQI (US)
5th May 2026
48AQI (US)
6th May 2026
38AQI (US)
7th May 2026
40AQI (US)
8th May 2026
37AQI (US)
9th May 2026
10th May 2026
38AQI (US)
11th May 2026
41AQI (US)
12th May 2026
39AQI (US)
13th May 2026
46AQI (US)
14th May 2026
68AQI (US)
15th May 2026
94AQI (US)
16th May 2026
77AQI (US)
17th May 2026
66AQI (US)
18th May 2026
56AQI (US)
19th May 2026
52AQI (US)
20th May 2026
64AQI (US)
21st May 2026
67AQI (US)
22nd May 2026
78AQI (US)
23rd May 2026
72AQI (US)
24th May 2026
71AQI (US)
25th May 2026
66AQI (US)
26th May 2026
50AQI (US)
27th May 2026
39AQI (US)
28th May 2026
46AQI (US)
29th May 2026
65AQI (US)
30th May 2026
81AQI (US)
31st May 2026
71AQI (US)
1st June 2026
80AQI (US)
2nd June 2026
76AQI (US)
3rd June 2026
76AQI (US)
4th June 2026
78AQI (US)
5th June 2026
28AQI (US)
6th June 2026
46AQI (US)
7th June 2026
27AQI (US)
8th June 2026
44AQI (US)
9th June 2026
30AQI (US)
10th June 2026
68AQI (US)
11th June 2026
69AQI (US)
12th June 2026
62AQI (US)
13th June 2026
69AQI (US)
14th June 2026
52AQI (US)
15th June 2026
67AQI (US)
16th June 2026
84AQI (US)
17th June 2026
85AQI (US)
18th June 2026
53AQI (US)
19th June 2026
75AQI (US)
20th June 2026
21AQI (US)
21st June 2026
15AQI (US)
22nd June 2026
48AQI (US)
23rd June 2026
52AQI (US)
24th June 2026
19AQI (US)
25th June 2026
26AQI (US)
26th June 2026
38AQI (US)
27th June 2026
64AQI (US)
28th June 2026
50AQI (US)
29th June 2026
52AQI (US)
30th June 2026
49AQI (US)
1st July 2026
67AQI (US)
2nd July 2026
55AQI (US)
3rd July 2026
28AQI (US)
4th July 2026
45AQI (US)
5th July 2026
41AQI (US)
6th July 2026
46AQI (US)
7th July 2026
44AQI (US)
8th July 2026
31AQI (US)
9th July 2026
28AQI (US)
10th July 2026
29AQI (US)
11th July 2026
30AQI (US)
12th July 2026
32AQI (US)
13th July 2026
47AQI (US)
14th July 2026
36AQI (US)
15th July 2026
44AQI (US)
16th July 2026
61AQI (US)
17th July 2026
76AQI (US)
18th July 2026
49AQI (US)
19th July 2026
22AQI (US)
20th July 2026
29AQI (US)
21st July 2026
34AQI (US)
22nd July 2026
52AQI (US)
23rd July 2026
52AQI (US)
24th July 2026
46AQI (US)
25th July 2026
30AQI (US)
26th July 2026
27AQI (US)
27th July 2026
31AQI (US)
28th July 2026
44AQI (US)
29th July 2026
26AQI (US)
30th July 2026
25AQI (US)
31st July 2026
35AQI (US)
1st August 2026
70AQI (US)
2nd August 2026
30AQI (US)
3rd August 2026
44AQI (US)
4th August 2026
70AQI (US)
5th August 2026
42AQI (US)
6th August 2026
61AQI (US)
7th August 2026
80AQI (US)
8th August 2026
33AQI (US)
9th August 2026
16AQI (US)
10th August 2026
27AQI (US)
11th August 2026
28AQI (US)
12th August 2026
37AQI (US)
13th August 2026
34AQI (US)
14th August 2026
34AQI (US)
15th August 2026
54AQI (US)
16th August 2026
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

54AQI (US)

72AQI (US)

89AQI (US)

74AQI (US)

59AQI (US)

53AQI (US)

40AQI (US)

44AQI (US)

No. of days

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

202662AQI (US)

15
14
2
13
7
8
6
9
15
1
7
18
3
12
17
1
13
17
25
6
10
5
101
93
29
1

Highest AQI (US) recorded in

March

89AQI (US)

Lowest AQI (US) recorded in

July

40AQI (US)

202565AQI (US)

2
23
5
1
5
22
1
4
15
12
3
26
1
3
27
1
30
7
24
15
16
22
8
17
13
1
6
19
5
10
19
2
94
242
28
1

Highest AQI (US) recorded in

March

87AQI (US)

Lowest AQI (US) recorded in

September

44AQI (US)

202464AQI (US)

12
9
7
2
7
15
6
1
5
21
3
2
1
20
9
11
19
1
7
23
22
8
1
12
19
21
9
12
16
3
7
21
2
5
26
122
206
32
5

Highest AQI (US) recorded in

April

88AQI (US)

Lowest AQI (US) recorded in

September

42AQI (US)

202372AQI (US)

8
14
5
3
2
16
8
2
2
13
13
3
3
21
4
2
5
20
6
5
25
11
18
2
13
18
15
12
3
10
17
4
15
10
4
11
14
5
1
100
198
54
11

Highest AQI (US) recorded in

March

102AQI (US)

Lowest AQI (US) recorded in

August

53AQI (US)

202271AQI (US)

1
19
7
2
4
9
4
4
6
17
8
7
14
8
6
22
3
14
16
5
16
1
13
12
2
1
14
11
5
1
5
15
9
1
9
18
3
1
85
169
49
10

Highest AQI (US) recorded in

February

88AQI (US)

Lowest AQI (US) recorded in

August

32AQI (US)

202176AQI (US)

1
1
13
9
3
2
9
14
5
1
6
21
3
7
18
4
2
5
21
4
10
18
3
13
15
24
6
11
19
1
7
15
6
2
9
11
10
1
96
166
54
11
3

Highest AQI (US) recorded in

March

116AQI (US)

Lowest AQI (US) recorded in

January

33AQI (US)

202071AQI (US)

2
10
1
5
15
1
3
13
2
3
22
5
11
18
2
11
20
14
15
3
22
5
1
7
6
4
52
142
22
5

Highest AQI (US) recorded in

November

110AQI (US)

Lowest AQI (US) recorded in

September

53AQI (US)

Most & Least Polluted Years Over the Last 7 Years

Most Polluted Year Recorded
2021(Avg.)
76AQI (US)
Least Polluted Year Recorded
2026(Avg.)
62AQI (US)

Sihwa's annual 2026 AQI (US) (62) shows an average percentage change of -10.9% (improved AQI (US)) compared to previous years: 2020 (71), 2021 (76), 2022 (71), 2023 (72), 2024 (64), 2025 (65).