Country Background
HistoryAQIPM2.5PM10COSO2NO2O3

Yuanchang, Yunlin, Taiwan 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

Yuanchang, Yunlin, Taiwan

2021
2022
2023
2024
2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
30th Aug 2021
71AQI
Lowest AQI recorded on
20th Aug 2024
19AQI

Same Day Analysis (20th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 40 of Good air quality on the same day.

Download 2024 Annual Data

World Air Quality Report

Globe

Day & Night AQI Trend: 21st Aug - 22nd Aug 2025

Yuanchang, Yunlin, Taiwan

AQI
Day
Night
.

5 AM21st Aug 2025

6 PM

4 AM22nd Aug 2025

Day time
Avg. Highest Time
4PM21st Aug

47AQI

Avg. Lowest Time
2PM21st Aug

36AQI

Night time
Avg. Highest Time
2AM22nd Aug

44AQI

Avg. Lowest Time
11PM21st Aug

38AQI

In the last 24 hours,

Yuanchang's AQI reached its highest point of 47 at 4 PM during the Day, while the lowest point, 36, was recorded at 2 PM during the Day between 21st Aug and 22nd Aug 2025.

Day & Night AQI Trend : Jul - Aug 2025

Yuanchang, Yunlin, Taiwan

JulAug
23rd - 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 - 19th19th - 20th20th - 21st21st - 22nd22nd
Day
Night
23rd Jul 2025425 AMAQI
23rd Jul 2025426 AMAQI
23rd Jul 2025427 AMAQI
23rd Jul 2025508 AMAQI
23rd Jul 2025559 AMAQI
23rd Jul 20255910 AMAQI
23rd Jul 20256211 AMAQI
23rd Jul 20256212 PMAQI
23rd Jul 2025651 PMAQI
23rd Jul 2025672 PMAQI
23rd Jul 2025653 PMAQI
23rd Jul 2025584 PMAQI
23rd Jul 2025535 PMAQI
23rd Jul 2025496 PMAQI
23rd Jul 2025477 PMAQI
23rd Jul 2025478 PMAQI
23rd Jul 2025499 PMAQI
23rd Jul 20254810 PMAQI
23rd Jul 20254711 PMAQI
24th Jul 20254612 AMAQI
24th Jul 2025441 AMAQI
24th Jul 2025442 AMAQI
24th Jul 2025463 AMAQI
24th Jul 2025494 AMAQI

30°C27/34°C

24th Jul 2025495 AMAQI
24th Jul 2025496 AMAQI
24th Jul 2025497 AMAQI
24th Jul 2025608 AMAQI
24th Jul 2025619 AMAQI
24th Jul 20255410 AMAQI
24th Jul 20255211 AMAQI
24th Jul 20254912 PMAQI
24th Jul 2025531 PMAQI
24th Jul 2025532 PMAQI
24th Jul 2025543 PMAQI
24th Jul 2025564 PMAQI
24th Jul 2025595 PMAQI
24th Jul 2025616 PMAQI
24th Jul 2025567 PMAQI
24th Jul 2025518 PMAQI
24th Jul 2025489 PMAQI
24th Jul 20254510 PMAQI
24th Jul 20254211 PMAQI
25th Jul 20254412 AMAQI
25th Jul 2025481 AMAQI
25th Jul 2025482 AMAQI
25th Jul 2025493 AMAQI
25th Jul 2025504 AMAQI

30°C27/34°C

25th Jul 2025515 AMAQI
25th Jul 2025516 AMAQI
25th Jul 2025517 AMAQI
25th Jul 2025408 AMAQI
25th Jul 2025359 AMAQI
25th Jul 20254210 AMAQI
25th Jul 20253411 AMAQI
25th Jul 20252912 PMAQI
25th Jul 2025301 PMAQI
25th Jul 2025302 PMAQI
25th Jul 2025363 PMAQI
25th Jul 2025414 PMAQI
25th Jul 2025385 PMAQI
25th Jul 2025346 PMAQI
25th Jul 2025337 PMAQI
25th Jul 2025428 PMAQI
25th Jul 2025459 PMAQI
25th Jul 20254010 PMAQI
25th Jul 20254011 PMAQI
26th Jul 20254112 AMAQI
26th Jul 2025481 AMAQI
26th Jul 2025482 AMAQI
26th Jul 2025493 AMAQI
26th Jul 2025474 AMAQI

29°C27/33°C

26th Jul 2025465 AMAQI
26th Jul 2025466 AMAQI
26th Jul 2025467 AMAQI
26th Jul 2025278 AMAQI
26th Jul 2025229 AMAQI
26th Jul 20252210 AMAQI
26th Jul 20252911 AMAQI
26th Jul 20253112 PMAQI
26th Jul 2025341 PMAQI
26th Jul 2025332 PMAQI
26th Jul 2025323 PMAQI
26th Jul 2025324 PMAQI
26th Jul 2025345 PMAQI
26th Jul 2025356 PMAQI
26th Jul 2025417 PMAQI
26th Jul 2025448 PMAQI
26th Jul 2025459 PMAQI
26th Jul 20254810 PMAQI
26th Jul 20254911 PMAQI
27th Jul 20254512 AMAQI
27th Jul 2025461 AMAQI
27th Jul 2025472 AMAQI
27th Jul 2025463 AMAQI
27th Jul 2025434 AMAQI

27°C25/28°C

27th Jul 2025435 AMAQI
27th Jul 2025436 AMAQI
27th Jul 2025447 AMAQI
27th Jul 2025388 AMAQI
27th Jul 2025379 AMAQI
27th Jul 20254110 AMAQI
27th Jul 20254211 AMAQI
27th Jul 20253512 PMAQI
27th Jul 2025361 PMAQI
27th Jul 2025382 PMAQI
27th Jul 2025363 PMAQI
27th Jul 2025354 PMAQI
27th Jul 2025375 PMAQI
27th Jul 2025386 PMAQI
27th Jul 2025407 PMAQI
27th Jul 2025438 PMAQI
27th Jul 2025429 PMAQI
27th Jul 20254110 PMAQI
27th Jul 20254011 PMAQI
28th Jul 20253912 AMAQI
28th Jul 2025461 AMAQI
28th Jul 2025462 AMAQI
28th Jul 2025453 AMAQI
28th Jul 2025444 AMAQI

29°C26/33°C

28th Jul 2025445 AMAQI
28th Jul 2025446 AMAQI
28th Jul 2025447 AMAQI
28th Jul 2025238 AMAQI
28th Jul 2025189 AMAQI
28th Jul 20251910 AMAQI
28th Jul 20252211 AMAQI
28th Jul 20252312 PMAQI
28th Jul 2025231 PMAQI
28th Jul 2025202 PMAQI
28th Jul 2025213 PMAQI
28th Jul 2025184 PMAQI
28th Jul 2025225 PMAQI
28th Jul 2025216 PMAQI
28th Jul 2025257 PMAQI
28th Jul 2025328 PMAQI
28th Jul 2025339 PMAQI
28th Jul 20253410 PMAQI
28th Jul 20253411 PMAQI
29th Jul 20253712 AMAQI
29th Jul 2025441 AMAQI
29th Jul 2025452 AMAQI
29th Jul 2025453 AMAQI
29th Jul 2025414 AMAQI

26°C25/27°C

29th Jul 2025415 AMAQI
29th Jul 2025416 AMAQI
29th Jul 2025407 AMAQI
29th Jul 2025248 AMAQI
29th Jul 2025199 AMAQI
29th Jul 20251910 AMAQI
29th Jul 20252011 AMAQI
29th Jul 20252112 PMAQI
29th Jul 2025231 PMAQI
29th Jul 2025252 PMAQI
29th Jul 2025303 PMAQI
29th Jul 2025324 PMAQI
29th Jul 2025315 PMAQI
29th Jul 2025326 PMAQI
29th Jul 2025377 PMAQI
29th Jul 2025408 PMAQI
29th Jul 2025409 PMAQI
29th Jul 20253910 PMAQI
29th Jul 20253911 PMAQI
30th Jul 20253912 AMAQI
30th Jul 2025421 AMAQI
30th Jul 2025422 AMAQI
30th Jul 2025413 AMAQI
30th Jul 2025384 AMAQI

26°C25/27°C

30th Jul 2025385 AMAQI
30th Jul 2025396 AMAQI
30th Jul 2025387 AMAQI
30th Jul 2025288 AMAQI
30th Jul 2025269 AMAQI
30th Jul 20252810 AMAQI
30th Jul 20254111 AMAQI
30th Jul 20254212 PMAQI
30th Jul 2025441 PMAQI
30th Jul 2025482 PMAQI
30th Jul 2025493 PMAQI
30th Jul 2025464 PMAQI
30th Jul 2025475 PMAQI
30th Jul 2025476 PMAQI
30th Jul 2025507 PMAQI
30th Jul 2025478 PMAQI
30th Jul 2025459 PMAQI
30th Jul 20254510 PMAQI
30th Jul 20254611 PMAQI
31st Jul 20254612 AMAQI
31st Jul 2025401 AMAQI
31st Jul 2025402 AMAQI
31st Jul 2025393 AMAQI
31st Jul 2025394 AMAQI

28°C25/32°C

31st Jul 2025395 AMAQI
31st Jul 2025396 AMAQI
31st Jul 2025397 AMAQI
31st Jul 2025398 AMAQI
31st Jul 2025399 AMAQI
31st Jul 20253910 AMAQI
31st Jul 20254011 AMAQI
31st Jul 20253912 PMAQI
31st Jul 2025401 PMAQI
31st Jul 2025412 PMAQI
31st Jul 2025443 PMAQI
31st Jul 2025364 PMAQI
31st Jul 2025365 PMAQI
31st Jul 2025386 PMAQI
31st Jul 2025407 PMAQI
31st Jul 2025518 PMAQI
31st Jul 2025489 PMAQI
31st Jul 20254810 PMAQI
31st Jul 20255111 PMAQI
1st Aug 20255012 AMAQI
1st Aug 2025481 AMAQI
1st Aug 2025482 AMAQI
1st Aug 2025413 AMAQI
1st Aug 2025424 AMAQI

29°C26/34°C

1st Aug 2025415 AMAQI
1st Aug 2025466 AMAQI
1st Aug 2025477 AMAQI
1st Aug 2025488 AMAQI
1st Aug 2025559 AMAQI
1st Aug 20255610 AMAQI
1st Aug 20256011 AMAQI
1st Aug 20255512 PMAQI
1st Aug 2025491 PMAQI
1st Aug 2025492 PMAQI
1st Aug 2025453 PMAQI
1st Aug 2025404 PMAQI
1st Aug 2025365 PMAQI
1st Aug 2025356 PMAQI
1st Aug 2025407 PMAQI
1st Aug 2025398 PMAQI
1st Aug 2025429 PMAQI
1st Aug 20254410 PMAQI
1st Aug 20254311 PMAQI
2nd Aug 20254912 AMAQI
2nd Aug 2025471 AMAQI
2nd Aug 2025462 AMAQI
2nd Aug 2025493 AMAQI
2nd Aug 2025484 AMAQI

29°C26/33°C

2nd Aug 2025495 AMAQI
2nd Aug 2025506 AMAQI
2nd Aug 2025487 AMAQI
2nd Aug 2025328 AMAQI
2nd Aug 2025369 AMAQI
2nd Aug 20254010 AMAQI
2nd Aug 20254311 AMAQI
2nd Aug 20254612 PMAQI
2nd Aug 2025501 PMAQI
2nd Aug 2025522 PMAQI
2nd Aug 2025503 PMAQI
2nd Aug 2025414 PMAQI
2nd Aug 2025345 PMAQI
2nd Aug 2025446 PMAQI
2nd Aug 2025437 PMAQI
2nd Aug 2025438 PMAQI
2nd Aug 2025429 PMAQI
2nd Aug 20254610 PMAQI
2nd Aug 20254711 PMAQI
3rd Aug 20255012 AMAQI
3rd Aug 2025481 AMAQI
3rd Aug 2025472 AMAQI
3rd Aug 2025493 AMAQI
3rd Aug 2025484 AMAQI

29°C26/33°C

3rd Aug 2025505 AMAQI
3rd Aug 2025496 AMAQI
3rd Aug 2025497 AMAQI
3rd Aug 2025448 AMAQI
3rd Aug 2025439 AMAQI
3rd Aug 20254410 AMAQI
3rd Aug 20254011 AMAQI
3rd Aug 20254412 PMAQI
3rd Aug 2025401 PMAQI
3rd Aug 2025422 PMAQI
3rd Aug 2025373 PMAQI
3rd Aug 2025424 PMAQI
3rd Aug 2025375 PMAQI
3rd Aug 2025446 PMAQI
3rd Aug 2025477 PMAQI
3rd Aug 2025468 PMAQI
3rd Aug 2025419 PMAQI
3rd Aug 20254210 PMAQI
3rd Aug 20254711 PMAQI
4th Aug 20255012 AMAQI
4th Aug 2025521 AMAQI
4th Aug 2025502 AMAQI
4th Aug 2025503 AMAQI
4th Aug 2025524 AMAQI

27°C26/31°C

4th Aug 2025515 AMAQI
4th Aug 2025506 AMAQI
4th Aug 2025517 AMAQI
4th Aug 2025268 AMAQI
4th Aug 2025279 AMAQI
4th Aug 20252510 AMAQI
4th Aug 20253211 AMAQI
4th Aug 20252912 PMAQI
4th Aug 2025341 PMAQI
4th Aug 2025362 PMAQI
4th Aug 2025293 PMAQI
4th Aug 2025344 PMAQI
4th Aug 2025305 PMAQI
4th Aug 2025316 PMAQI
4th Aug 2025337 PMAQI
4th Aug 2025388 PMAQI
4th Aug 2025399 PMAQI
4th Aug 20254110 PMAQI
4th Aug 20254011 PMAQI
5th Aug 20254412 AMAQI
5th Aug 2025481 AMAQI
5th Aug 2025522 AMAQI
5th Aug 2025493 AMAQI
5th Aug 2025484 AMAQI

25°C24/26°C

5th Aug 2025475 AMAQI
5th Aug 2025496 AMAQI
5th Aug 2025477 AMAQI
5th Aug 2025358 AMAQI
5th Aug 2025409 AMAQI
5th Aug 20254110 AMAQI
5th Aug 20255211 AMAQI
5th Aug 20255012 PMAQI
5th Aug 2025491 PMAQI
5th Aug 2025452 PMAQI
5th Aug 2025493 PMAQI
5th Aug 2025494 PMAQI
5th Aug 2025535 PMAQI
5th Aug 2025476 PMAQI
5th Aug 2025507 PMAQI
5th Aug 2025518 PMAQI
5th Aug 2025499 PMAQI
5th Aug 20255010 PMAQI
5th Aug 20255011 PMAQI
6th Aug 20254812 AMAQI
6th Aug 2025491 AMAQI
6th Aug 2025482 AMAQI
6th Aug 2025473 AMAQI
6th Aug 2025494 AMAQI

27°C24/30°C

6th Aug 2025495 AMAQI
6th Aug 2025516 AMAQI
6th Aug 2025487 AMAQI
6th Aug 2025478 AMAQI
6th Aug 2025479 AMAQI
6th Aug 20254510 AMAQI
6th Aug 20254811 AMAQI
6th Aug 20255212 PMAQI
6th Aug 2025561 PMAQI
6th Aug 2025522 PMAQI
6th Aug 2025513 PMAQI
6th Aug 2025504 PMAQI
6th Aug 2025515 PMAQI
6th Aug 2025546 PMAQI
6th Aug 2025497 PMAQI
6th Aug 2025528 PMAQI
6th Aug 2025499 PMAQI
6th Aug 20255010 PMAQI
6th Aug 20255111 PMAQI
7th Aug 20254912 AMAQI
7th Aug 2025501 AMAQI
7th Aug 2025482 AMAQI
7th Aug 2025493 AMAQI
7th Aug 2025504 AMAQI

30°C26/34°C

7th Aug 2025485 AMAQI
7th Aug 2025496 AMAQI
7th Aug 2025487 AMAQI
7th Aug 2025548 AMAQI
7th Aug 2025549 AMAQI
7th Aug 20255210 AMAQI
7th Aug 20255411 AMAQI
7th Aug 20255212 PMAQI
7th Aug 2025521 PMAQI
7th Aug 2025432 PMAQI
7th Aug 2025393 PMAQI
7th Aug 2025374 PMAQI
7th Aug 2025415 PMAQI
7th Aug 2025416 PMAQI
7th Aug 2025427 PMAQI
7th Aug 2025488 PMAQI
7th Aug 2025509 PMAQI
7th Aug 20254910 PMAQI
7th Aug 20254911 PMAQI
8th Aug 20255012 AMAQI
8th Aug 2025501 AMAQI
8th Aug 2025502 AMAQI
8th Aug 2025503 AMAQI
8th Aug 2025514 AMAQI

30°C26/34°C

8th Aug 2025515 AMAQI
8th Aug 2025516 AMAQI
8th Aug 2025507 AMAQI
8th Aug 2025618 AMAQI
8th Aug 2025669 AMAQI
8th Aug 20256410 AMAQI
8th Aug 20256411 AMAQI
8th Aug 20256212 PMAQI
8th Aug 2025591 PMAQI
8th Aug 2025492 PMAQI
8th Aug 2025443 PMAQI
8th Aug 2025424 PMAQI
8th Aug 2025425 PMAQI
8th Aug 2025406 PMAQI
8th Aug 2025367 PMAQI
8th Aug 2025438 PMAQI
8th Aug 2025449 PMAQI
8th Aug 20254310 PMAQI
8th Aug 20254411 PMAQI
9th Aug 20254912 AMAQI
9th Aug 2025511 AMAQI
9th Aug 2025512 AMAQI
9th Aug 2025523 AMAQI
9th Aug 2025534 AMAQI

30°C27/34°C

9th Aug 2025535 AMAQI
9th Aug 2025536 AMAQI
9th Aug 2025537 AMAQI
9th Aug 2025558 AMAQI
9th Aug 2025529 AMAQI
9th Aug 20254910 AMAQI
9th Aug 20254111 AMAQI
9th Aug 20253812 PMAQI
9th Aug 2025341 PMAQI
9th Aug 2025332 PMAQI
9th Aug 2025273 PMAQI
9th Aug 2025264 PMAQI
9th Aug 2025285 PMAQI
9th Aug 2025246 PMAQI
9th Aug 2025307 PMAQI
9th Aug 2025418 PMAQI
9th Aug 2025429 PMAQI
9th Aug 20254310 PMAQI
9th Aug 20254211 PMAQI
10th Aug 20254612 AMAQI
10th Aug 2025521 AMAQI
10th Aug 2025522 AMAQI
10th Aug 2025523 AMAQI
10th Aug 2025524 AMAQI

30°C28/34°C

10th Aug 2025525 AMAQI
10th Aug 2025516 AMAQI
10th Aug 2025527 AMAQI
10th Aug 2025368 AMAQI
10th Aug 2025269 AMAQI
10th Aug 20252910 AMAQI
10th Aug 20252011 AMAQI
10th Aug 20252512 PMAQI
10th Aug 2025231 PMAQI
10th Aug 2025212 PMAQI
10th Aug 2025233 PMAQI
10th Aug 2025244 PMAQI
10th Aug 2025245 PMAQI
10th Aug 2025256 PMAQI
10th Aug 2025287 PMAQI
10th Aug 2025388 PMAQI
10th Aug 2025399 PMAQI
10th Aug 20253810 PMAQI
10th Aug 20253911 PMAQI
11th Aug 20254212 AMAQI
11th Aug 2025501 AMAQI
11th Aug 2025502 AMAQI
11th Aug 2025493 AMAQI
11th Aug 2025464 AMAQI

30°C27/34°C

11th Aug 2025455 AMAQI
11th Aug 2025466 AMAQI
11th Aug 2025467 AMAQI
11th Aug 2025298 AMAQI
11th Aug 2025209 AMAQI
11th Aug 20251810 AMAQI
11th Aug 20251811 AMAQI
11th Aug 20252212 PMAQI
11th Aug 2025231 PMAQI
11th Aug 2025232 PMAQI
11th Aug 2025243 PMAQI
11th Aug 2025264 PMAQI
11th Aug 2025385 PMAQI
11th Aug 2025356 PMAQI
11th Aug 2025397 PMAQI
11th Aug 2025428 PMAQI
11th Aug 2025489 PMAQI
11th Aug 20254210 PMAQI
11th Aug 20254011 PMAQI
12th Aug 20254512 AMAQI
12th Aug 2025501 AMAQI
12th Aug 2025512 AMAQI
12th Aug 2025473 AMAQI
12th Aug 2025464 AMAQI

30°C27/33°C

12th Aug 2025505 AMAQI
12th Aug 2025496 AMAQI
12th Aug 2025457 AMAQI
12th Aug 2025458 AMAQI
12th Aug 2025399 AMAQI
12th Aug 20254510 AMAQI
12th Aug 20254211 AMAQI
12th Aug 20254212 PMAQI
12th Aug 2025391 PMAQI
12th Aug 2025462 PMAQI
12th Aug 2025503 PMAQI
12th Aug 2025414 PMAQI
12th Aug 2025425 PMAQI
12th Aug 2025386 PMAQI
12th Aug 2025497 PMAQI
12th Aug 2025468 PMAQI
12th Aug 2025479 PMAQI
12th Aug 20254210 PMAQI
12th Aug 20254011 PMAQI
13th Aug 20254312 AMAQI
13th Aug 2025501 AMAQI
13th Aug 2025492 AMAQI
13th Aug 2025493 AMAQI
13th Aug 2025484 AMAQI

30°C27/34°C

13th Aug 2025485 AMAQI
13th Aug 2025506 AMAQI
13th Aug 2025487 AMAQI
13th Aug 2025288 AMAQI
13th Aug 2025449 AMAQI
13th Aug 20253510 AMAQI
13th Aug 20254511 AMAQI
13th Aug 20254712 PMAQI
13th Aug 2025461 PMAQI
13th Aug 2025482 PMAQI
13th Aug 2025543 PMAQI
13th Aug 2025484 PMAQI
13th Aug 2025455 PMAQI
13th Aug 2025356 PMAQI
13th Aug 2025407 PMAQI
13th Aug 2025428 PMAQI
13th Aug 2025389 PMAQI
13th Aug 20254110 PMAQI
13th Aug 20253711 PMAQI
14th Aug 20254712 AMAQI
14th Aug 2025501 AMAQI
14th Aug 2025502 AMAQI
14th Aug 2025463 AMAQI
14th Aug 2025464 AMAQI

29°C27/33°C

14th Aug 2025475 AMAQI
14th Aug 2025466 AMAQI
14th Aug 2025467 AMAQI
14th Aug 2025238 AMAQI
14th Aug 2025219 AMAQI
14th Aug 20253010 AMAQI
14th Aug 20252911 AMAQI
14th Aug 20252912 PMAQI
14th Aug 2025301 PMAQI
14th Aug 2025292 PMAQI
14th Aug 2025283 PMAQI
14th Aug 2025274 PMAQI
14th Aug 2025265 PMAQI
14th Aug 2025406 PMAQI
14th Aug 2025407 PMAQI
14th Aug 2025398 PMAQI
14th Aug 2025399 PMAQI
14th Aug 20253510 PMAQI
14th Aug 20253811 PMAQI
15th Aug 20254112 AMAQI
15th Aug 2025461 AMAQI
15th Aug 2025452 AMAQI
15th Aug 2025423 AMAQI
15th Aug 2025424 AMAQI

30°C26/34°C

15th Aug 2025415 AMAQI
15th Aug 2025426 AMAQI
15th Aug 2025417 AMAQI
15th Aug 2025298 AMAQI
15th Aug 2025349 AMAQI
15th Aug 20253910 AMAQI
15th Aug 20253711 AMAQI
15th Aug 20253812 PMAQI
15th Aug 2025421 PMAQI
15th Aug 2025372 PMAQI
15th Aug 2025303 PMAQI
15th Aug 2025364 PMAQI
15th Aug 2025345 PMAQI
15th Aug 2025286 PMAQI
15th Aug 2025417 PMAQI
15th Aug 2025408 PMAQI
15th Aug 2025459 PMAQI
15th Aug 20254010 PMAQI
15th Aug 20254011 PMAQI
16th Aug 20254212 AMAQI
16th Aug 2025421 AMAQI
16th Aug 2025422 AMAQI
16th Aug 2025423 AMAQI
16th Aug 2025404 AMAQI

30°C27/34°C

16th Aug 2025405 AMAQI
16th Aug 2025406 AMAQI
16th Aug 2025417 AMAQI
16th Aug 2025438 AMAQI
16th Aug 2025469 AMAQI
16th Aug 20253910 AMAQI
16th Aug 20253611 AMAQI
16th Aug 20253512 PMAQI
16th Aug 2025411 PMAQI
16th Aug 2025362 PMAQI
16th Aug 2025373 PMAQI
16th Aug 2025434 PMAQI
16th Aug 2025595 PMAQI
16th Aug 2025496 PMAQI
16th Aug 2025457 PMAQI
16th Aug 2025398 PMAQI
16th Aug 2025379 PMAQI
16th Aug 20253510 PMAQI
16th Aug 20253711 PMAQI
17th Aug 20254112 AMAQI
17th Aug 2025421 AMAQI
17th Aug 2025402 AMAQI
17th Aug 2025403 AMAQI
17th Aug 2025424 AMAQI

30°C27/34°C

17th Aug 2025415 AMAQI
17th Aug 2025386 AMAQI
17th Aug 2025407 AMAQI
17th Aug 2025368 AMAQI
17th Aug 2025379 AMAQI
17th Aug 20253710 AMAQI
17th Aug 20253511 AMAQI
17th Aug 20253212 PMAQI
17th Aug 2025421 PMAQI
17th Aug 2025392 PMAQI
17th Aug 2025363 PMAQI
17th Aug 2025264 PMAQI
17th Aug 2025325 PMAQI
17th Aug 2025286 PMAQI
17th Aug 2025397 PMAQI
17th Aug 2025398 PMAQI
17th Aug 2025379 PMAQI
17th Aug 20253710 PMAQI
17th Aug 20253511 PMAQI
18th Aug 20253812 AMAQI
18th Aug 2025401 AMAQI
18th Aug 2025402 AMAQI
18th Aug 2025403 AMAQI
18th Aug 2025404 AMAQI

30°C27/35°C

18th Aug 2025425 AMAQI
18th Aug 2025396 AMAQI
18th Aug 2025417 AMAQI
18th Aug 2025438 AMAQI
18th Aug 2025389 AMAQI
18th Aug 20254210 AMAQI
18th Aug 20253811 AMAQI
18th Aug 20253312 PMAQI
18th Aug 2025361 PMAQI
18th Aug 2025412 PMAQI
18th Aug 2025403 PMAQI
18th Aug 2025374 PMAQI
18th Aug 2025325 PMAQI
18th Aug 2025356 PMAQI
18th Aug 2025397 PMAQI
18th Aug 2025368 PMAQI
18th Aug 2025379 PMAQI
18th Aug 20253510 PMAQI
18th Aug 20253211 PMAQI
19th Aug 20253812 AMAQI
19th Aug 2025411 AMAQI
19th Aug 2025412 AMAQI
19th Aug 2025413 AMAQI
19th Aug 2025404 AMAQI

30°C27/33°C

19th Aug 2025415 AMAQI
19th Aug 2025426 AMAQI
19th Aug 2025417 AMAQI
19th Aug 2025318 AMAQI
19th Aug 2025309 AMAQI
19th Aug 20254810 AMAQI
19th Aug 20254311 AMAQI
19th Aug 20254112 PMAQI
19th Aug 2025381 PMAQI
19th Aug 2025362 PMAQI
19th Aug 2025403 PMAQI
19th Aug 2025374 PMAQI
19th Aug 2025325 PMAQI
19th Aug 2025346 PMAQI
19th Aug 2025367 PMAQI
19th Aug 2025428 PMAQI
19th Aug 2025339 PMAQI
19th Aug 20253510 PMAQI
19th Aug 20253611 PMAQI
20th Aug 20253912 AMAQI
20th Aug 2025401 AMAQI
20th Aug 2025432 AMAQI
20th Aug 2025423 AMAQI
20th Aug 2025404 AMAQI

30°C27/33°C

20th Aug 2025425 AMAQI
20th Aug 2025416 AMAQI
20th Aug 2025427 AMAQI
20th Aug 2025358 AMAQI
20th Aug 2025429 AMAQI
20th Aug 20254210 AMAQI
20th Aug 20254111 AMAQI
20th Aug 20254412 PMAQI
20th Aug 2025481 PMAQI
20th Aug 2025422 PMAQI
20th Aug 2025403 PMAQI
20th Aug 2025394 PMAQI
20th Aug 2025335 PMAQI
20th Aug 2025306 PMAQI
20th Aug 2025367 PMAQI
20th Aug 2025418 PMAQI
20th Aug 2025409 PMAQI
20th Aug 20253610 PMAQI
20th Aug 20254211 PMAQI
21st Aug 20254212 AMAQI
21st Aug 2025411 AMAQI
21st Aug 2025422 AMAQI
21st Aug 2025423 AMAQI
21st Aug 2025424 AMAQI

29°C27/33°C

21st Aug 2025415 AMAQI
21st Aug 2025436 AMAQI
21st Aug 2025437 AMAQI
21st Aug 2025398 AMAQI
21st Aug 2025399 AMAQI
21st Aug 20253710 AMAQI
21st Aug 20254211 AMAQI
21st Aug 20254312 PMAQI
21st Aug 2025381 PMAQI
21st Aug 2025362 PMAQI
21st Aug 2025373 PMAQI
21st Aug 2025474 PMAQI
21st Aug 2025445 PMAQI
21st Aug 2025446 PMAQI
21st Aug 2025387 PMAQI
21st Aug 2025408 PMAQI
21st Aug 2025409 PMAQI
21st Aug 20253910 PMAQI
21st Aug 20253811 PMAQI
22nd Aug 20254312 AMAQI
22nd Aug 2025431 AMAQI
22nd Aug 2025442 AMAQI
22nd Aug 2025443 AMAQI
22nd Aug 2025444 AMAQI

30°C27/35°C

22nd Aug 2025445 AMAQI
5 AM
22nd Aug 2025446 AMAQI
22nd Aug 2025447 AMAQI
22nd Aug 2025378 AMAQI
22nd Aug 2025429 AMAQI
11 AM
6 PM
11 PM
4 AM

--°C/°C

Day time
Avg. Highest Time
5 AM - 7 AM

45AQI

3 hours / Day
90 hours / Month
Avg. Lowest Time
8 AM - 6 PM

39AQI

11 hours / Day
330 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 7 AM (Avg. 45), while the lowest AQI was between 8 AM to 6 PM (Avg. 39).
Night time
Avg. Highest Time
1 AM - 4 AM

46AQI

4 hours / Day
120 hours / Month
Avg. Lowest Time
7 PM

40AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 1 AM to 4 AM (Avg. 46), while the lowest AQI was between 7 PM to 7 PM (Avg. 40).

2025 Days Vs Air Quality

Yuanchang, Yunlin, Taiwan

2025

46%

106

54%

125

0.4%

1

Total number of days with different AQI categories in last 234 days in 2025 (131 days remaining)

Good
106 Days
Moderate
125 Days
Poor
1 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 46%

Health Risk Level:

Significant

In 2025, 46% of 234 days were within WHO’s safe air quality limits, and 54% exceeded them. The risk of health issues is Significant, especially for those with existing respiratory or heart conditions.

Annual Air Quality Insights

Yuanchang, Yunlin, Taiwan

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
84AQI
2nd January 2025
59AQI
3rd January 2025
63AQI
4th January 2025
60AQI
5th January 2025
60AQI
6th January 2025
77AQI
7th January 2025
79AQI
8th January 2025
61AQI
9th January 2025
74AQI
10th January 2025
61AQI
11th January 2025
55AQI
12th January 2025
56AQI
13th January 2025
61AQI
14th January 2025
81AQI
15th January 2025
81AQI
16th January 2025
63AQI
17th January 2025
64AQI
18th January 2025
65AQI
19th January 2025
63AQI
20th January 2025
74AQI
21st January 2025
85AQI
22nd January 2025
90AQI
23rd January 2025
76AQI
24th January 2025
75AQI
25th January 2025
77AQI
26th January 2025
65AQI
27th January 2025
59AQI
28th January 2025
61AQI
29th January 2025
60AQI
30th January 2025
76AQI
31st January 2025
74AQI
1st February 2025
63AQI
2nd February 2025
56AQI
3rd February 2025
57AQI
4th February 2025
77AQI
5th February 2025
65AQI
6th February 2025
76AQI
7th February 2025
61AQI
8th February 2025
64AQI
9th February 2025
50AQI
10th February 2025
56AQI
11th February 2025
64AQI
12th February 2025
65AQI
13th February 2025
56AQI
14th February 2025
60AQI
15th February 2025
58AQI
16th February 2025
77AQI
17th February 2025
96AQI
18th February 2025
65AQI
19th February 2025
70AQI
20th February 2025
67AQI
21st February 2025
50AQI
22nd February 2025
55AQI
23rd February 2025
44AQI
24th February 2025
64AQI
25th February 2025
76AQI
26th February 2025
76AQI
27th February 2025
110AQI
28th February 2025
85AQI
1st March 2025
83AQI
2nd March 2025
77AQI
3rd March 2025
64AQI
4th March 2025
55AQI
5th March 2025
45AQI
6th March 2025
42AQI
7th March 2025
56AQI
8th March 2025
57AQI
9th March 2025
60AQI
10th March 2025
75AQI
11th March 2025
91AQI
12th March 2025
79AQI
13th March 2025
66AQI
14th March 2025
72AQI
15th March 2025
64AQI
16th March 2025
52AQI
17th March 2025
76AQI
18th March 2025
61AQI
19th March 2025
74AQI
20th March 2025
69AQI
21st March 2025
71AQI
22nd March 2025
77AQI
23rd March 2025
75AQI
24th March 2025
69AQI
25th March 2025
64AQI
26th March 2025
64AQI
27th March 2025
59AQI
28th March 2025
67AQI
29th March 2025
49AQI
30th March 2025
40AQI
31st March 2025
36AQI
1st April 2025
35AQI
2nd April 2025
54AQI
3rd April 2025
66AQI
4th April 2025
75AQI
5th April 2025
70AQI
6th April 2025
65AQI
7th April 2025
75AQI
8th April 2025
75AQI
9th April 2025
68AQI
10th April 2025
67AQI
11th April 2025
69AQI
12th April 2025
56AQI
13th April 2025
84AQI
14th April 2025
74AQI
15th April 2025
83AQI
16th April 2025
78AQI
17th April 2025
74AQI
18th April 2025
63AQI
19th April 2025
62AQI
20th April 2025
58AQI
21st April 2025
58AQI
22nd April 2025
55AQI
23rd April 2025
57AQI
24th April 2025
58AQI
25th April 2025
49AQI
26th April 2025
61AQI
27th April 2025
60AQI
28th April 2025
58AQI
29th April 2025
66AQI
30th April 2025
63AQI
1st May 2025
62AQI
2nd May 2025
72AQI
3rd May 2025
69AQI
4th May 2025
71AQI
5th May 2025
66AQI
6th May 2025
63AQI
7th May 2025
56AQI
8th May 2025
58AQI
9th May 2025
45AQI
10th May 2025
36AQI
11th May 2025
39AQI
12th May 2025
49AQI
13th May 2025
56AQI
14th May 2025
56AQI
15th May 2025
46AQI
16th May 2025
49AQI
17th May 2025
40AQI
18th May 2025
36AQI
19th May 2025
33AQI
20th May 2025
33AQI
21st May 2025
28AQI
22nd May 2025
40AQI
23rd May 2025
38AQI
24th May 2025
42AQI
25th May 2025
53AQI
26th May 2025
52AQI
27th May 2025
50AQI
28th May 2025
56AQI
29th May 2025
38AQI
30th May 2025
52AQI
31st May 2025
57AQI
1st June 2025
51AQI
2nd June 2025
40AQI
3rd June 2025
35AQI
4th June 2025
44AQI
5th June 2025
34AQI
6th June 2025
39AQI
7th June 2025
30AQI
8th June 2025
30AQI
9th June 2025
29AQI
10th June 2025
31AQI
11th June 2025
40AQI
12th June 2025
45AQI
13th June 2025
29AQI
14th June 2025
30AQI
15th June 2025
35AQI
16th June 2025
30AQI
17th June 2025
30AQI
18th June 2025
33AQI
19th June 2025
32AQI
20th June 2025
33AQI
21st June 2025
28AQI
22nd June 2025
21AQI
23rd June 2025
22AQI
24th June 2025
25AQI
25th June 2025
27AQI
26th June 2025
26AQI
27th June 2025
25AQI
28th June 2025
29AQI
29th June 2025
30AQI
30th June 2025
34AQI
1st July 2025
35AQI
2nd July 2025
40AQI
3rd July 2025
41AQI
4th July 2025
43AQI
5th July 2025
37AQI
6th July 2025
38AQI
7th July 2025
33AQI
8th July 2025
37AQI
9th July 2025
38AQI
10th July 2025
34AQI
11th July 2025
36AQI
12th July 2025
41AQI
13th July 2025
44AQI
14th July 2025
47AQI
15th July 2025
43AQI
16th July 2025
43AQI
17th July 2025
46AQI
18th July 2025
46AQI
19th July 2025
48AQI
20th July 2025
40AQI
21st July 2025
40AQI
22nd July 2025
38AQI
23rd July 2025
50AQI
24th July 2025
50AQI
25th July 2025
42AQI
26th July 2025
40AQI
27th July 2025
41AQI
28th July 2025
33AQI
29th July 2025
35AQI
30th July 2025
42AQI
31st July 2025
42AQI
1st August 2025
46AQI
2nd August 2025
45AQI
3rd August 2025
45AQI
4th August 2025
40AQI
5th August 2025
48AQI
6th August 2025
49AQI
7th August 2025
48AQI
8th August 2025
49AQI
9th August 2025
43AQI
10th August 2025
38AQI
11th August 2025
38AQI
12th August 2025
45AQI
13th August 2025
44AQI
14th August 2025
38AQI
15th August 2025
39AQI
16th August 2025
41AQI
17th August 2025
37AQI
18th August 2025
38AQI
19th August 2025
39AQI
20th August 2025
40AQI
21st August 2025
22nd August 2025
23rd August 2025
24th August 2025
25th August 2025
26th August 2025
27th August 2025
28th August 2025
29th August 2025
30th August 2025
31st August 2025
1st September 2025
2nd September 2025
3rd September 2025
4th September 2025
5th September 2025
6th September 2025
7th September 2025
8th September 2025
9th September 2025
10th September 2025
11th September 2025
12th September 2025
13th September 2025
14th September 2025
15th September 2025
16th September 2025
17th September 2025
18th September 2025
19th September 2025
20th September 2025
21st September 2025
22nd September 2025
23rd September 2025
24th September 2025
25th September 2025
26th September 2025
27th September 2025
28th September 2025
29th September 2025
30th September 2025
1st October 2025
2nd October 2025
3rd October 2025
4th October 2025
5th October 2025
6th October 2025
7th October 2025
8th October 2025
9th October 2025
10th October 2025
11th October 2025
12th October 2025
13th October 2025
14th October 2025
15th October 2025
16th October 2025
17th October 2025
18th October 2025
19th October 2025
20th October 2025
21st October 2025
22nd October 2025
23rd October 2025
24th October 2025
25th October 2025
26th October 2025
27th October 2025
28th October 2025
29th October 2025
30th October 2025
31st October 2025
1st November 2025
2nd November 2025
3rd November 2025
4th November 2025
5th November 2025
6th November 2025
7th November 2025
8th November 2025
9th November 2025
10th November 2025
11th November 2025
12th November 2025
13th November 2025
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

69AQI

67AQI

64AQI

65AQI

50AQI

32AQI

41AQI

43AQI

No. of days

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

202554AQI

31
3
24
1
5
26
2
28
16
15
29
1
31
20
106
125
1

Highest AQI recorded in

January

69AQI

Lowest AQI recorded in

June

32AQI

202456AQI

2
23
6
7
20
2
2
26
3
6
24
7
24
29
31
26
5
15
15
9
22
14
16
3
28
151
203
11

Highest AQI recorded in

January

82AQI

Lowest AQI recorded in

July

31AQI

202360AQI

28
3
24
4
1
23
7
26
4
7
22
2
25
5
29
2
30
1
14
16
9
22
3
26
9
19
3
127
214
23

Highest AQI recorded in

April

81AQI

Lowest AQI recorded in

July

32AQI

202254AQI

5
24
1
10
10
1
6
19
6
8
21
1
17
14
29
1
24
1
6
23
13
18
7
22
1
18
13
144
165
10

Highest AQI recorded in

March

80AQI

Lowest AQI recorded in

July

27AQI

202162AQI

3
21
5
1
16
11
1
21
9
1
29
23
8
30
27
4
25
6
10
20
6
24
1
3
27
4
25
2
134
201
28

Highest AQI recorded in

February

96AQI

Lowest AQI recorded in

June

33AQI

202052AQI

1
12
2
16
3
15
3
29
1
29
2
27
4
7
23
2
29
4
24
2
15
14
2
131
128
7

Highest AQI recorded in

April

74AQI

Lowest AQI recorded in

July

28AQI

Most & Least Polluted Years Over the Last 6 Years

Most Polluted Year Recorded
2021(Avg.)
62AQI
Least Polluted Year Recorded
2020(Avg.)
52AQI

Yuanchang's annual 2025 AQI (54) shows an average percentage change of -4.4% (improved AQI) compared to previous years: 2020 (52), 2021 (62), 2022 (54), 2023 (60), 2024 (56).