Islandtaipower Chianshan, Magong, Penghu, 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+
September Air Quality Analysis
Islandtaipower Chianshan, Magong, Penghu, Taiwan
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
15th Sep 2022
105AQILowest AQI recorded on
24th Sep 2024
22AQISame Day Analysis (21st September ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 43 of Good air quality, showing improvement over 2023 and 2022 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 21st Sep - 22nd Sep 2025
Islandtaipower Chianshan, Magong, Penghu, Taiwan
AQI
Day
Night
.
5 AM21st Sep 2025
6 PM
4 AM22nd Sep 2025
Day time
Avg. Highest Time
2PM21st Sep
52AQI
Avg. Lowest Time
6PM21st Sep
24AQI
Night time
Avg. Highest Time
4AM22nd Sep
54AQI
Avg. Lowest Time
12AM22nd Sep
37AQI
In the last 24 hours,
Islandtaipower Chianshan's AQI reached its highest point of 54 at 4 AM during the Night, while the lowest point, 24, was recorded at 6 PM during the Day between 21st Sep and 22nd Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Islandtaipower Chianshan, Magong, Penghu, Taiwan
AugSep
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 Aug 2025465 AMAQI
23rd Aug 2025466 AMAQI
23rd Aug 2025487 AMAQI
23rd Aug 2025628 AMAQI
23rd Aug 2025549 AMAQI
23rd Aug 20255510 AMAQI
23rd Aug 20255211 AMAQI
23rd Aug 20254612 PMAQI
23rd Aug 2025461 PMAQI
23rd Aug 2025482 PMAQI
23rd Aug 2025413 PMAQI
23rd Aug 2025464 PMAQI
23rd Aug 2025455 PMAQI
23rd Aug 2025476 PMAQI
23rd Aug 2025487 PMAQI
23rd Aug 2025518 PMAQI
23rd Aug 2025509 PMAQI
23rd Aug 20255110 PMAQI
23rd Aug 20255111 PMAQI
24th Aug 20254812 AMAQI
24th Aug 2025481 AMAQI
24th Aug 2025482 AMAQI
24th Aug 2025493 AMAQI
24th Aug 2025494 AMAQI
29°C28/30°C
24th Aug 2025505 AMAQI
24th Aug 2025516 AMAQI
24th Aug 2025517 AMAQI
24th Aug 2025438 AMAQI
24th Aug 2025499 AMAQI
24th Aug 20253810 AMAQI
24th Aug 20253811 AMAQI
24th Aug 20253412 PMAQI
24th Aug 2025461 PMAQI
24th Aug 2025482 PMAQI
24th Aug 2025443 PMAQI
24th Aug 2025524 PMAQI
24th Aug 2025495 PMAQI
24th Aug 2025396 PMAQI
24th Aug 2025507 PMAQI
24th Aug 2025488 PMAQI
24th Aug 2025499 PMAQI
24th Aug 20254910 PMAQI
24th Aug 20254811 PMAQI
25th Aug 20255212 AMAQI
25th Aug 2025501 AMAQI
25th Aug 2025502 AMAQI
25th Aug 2025503 AMAQI
25th Aug 2025504 AMAQI
29°C28/29°C
25th Aug 2025495 AMAQI
25th Aug 2025516 AMAQI
25th Aug 2025507 AMAQI
25th Aug 2025528 AMAQI
25th Aug 2025459 AMAQI
25th Aug 20253910 AMAQI
25th Aug 20254811 AMAQI
25th Aug 20253912 PMAQI
25th Aug 2025341 PMAQI
25th Aug 2025362 PMAQI
25th Aug 2025443 PMAQI
25th Aug 2025324 PMAQI
25th Aug 2025415 PMAQI
25th Aug 2025466 PMAQI
25th Aug 2025467 PMAQI
25th Aug 2025448 PMAQI
25th Aug 2025499 PMAQI
25th Aug 20254910 PMAQI
25th Aug 20255211 PMAQI
26th Aug 20255212 AMAQI
26th Aug 2025521 AMAQI
26th Aug 2025512 AMAQI
26th Aug 2025523 AMAQI
26th Aug 2025494 AMAQI
28°C28/29°C
26th Aug 2025505 AMAQI
26th Aug 2025496 AMAQI
26th Aug 2025507 AMAQI
26th Aug 2025328 AMAQI
26th Aug 2025269 AMAQI
26th Aug 20253110 AMAQI
26th Aug 20253211 AMAQI
26th Aug 20253412 PMAQI
26th Aug 2025361 PMAQI
26th Aug 2025302 PMAQI
26th Aug 2025313 PMAQI
26th Aug 2025364 PMAQI
26th Aug 2025375 PMAQI
26th Aug 2025466 PMAQI
26th Aug 2025437 PMAQI
26th Aug 2025488 PMAQI
26th Aug 2025469 PMAQI
26th Aug 20254110 PMAQI
26th Aug 20254011 PMAQI
27th Aug 20254012 AMAQI
27th Aug 2025521 AMAQI
27th Aug 2025502 AMAQI
27th Aug 2025493 AMAQI
27th Aug 2025484 AMAQI
28°C28/29°C
27th Aug 2025445 AMAQI
27th Aug 2025476 AMAQI
27th Aug 2025487 AMAQI
27th Aug 2025288 AMAQI
27th Aug 2025289 AMAQI
27th Aug 20254210 AMAQI
27th Aug 20254111 AMAQI
27th Aug 20254812 PMAQI
27th Aug 2025421 PMAQI
27th Aug 2025232 PMAQI
27th Aug 2025263 PMAQI
27th Aug 2025264 PMAQI
27th Aug 2025375 PMAQI
27th Aug 2025476 PMAQI
27th Aug 2025457 PMAQI
27th Aug 2025488 PMAQI
27th Aug 2025439 PMAQI
27th Aug 20254110 PMAQI
27th Aug 20254411 PMAQI
28th Aug 20253912 AMAQI
28th Aug 2025471 AMAQI
28th Aug 2025492 AMAQI
28th Aug 2025473 AMAQI
28th Aug 2025464 AMAQI
28°C27/28°C
28th Aug 2025475 AMAQI
28th Aug 2025476 AMAQI
28th Aug 2025467 AMAQI
28th Aug 2025378 AMAQI
28th Aug 2025389 AMAQI
28th Aug 20254110 AMAQI
28th Aug 20254011 AMAQI
28th Aug 20254212 PMAQI
28th Aug 2025401 PMAQI
28th Aug 2025312 PMAQI
28th Aug 2025323 PMAQI
28th Aug 2025384 PMAQI
28th Aug 2025475 PMAQI
28th Aug 2025386 PMAQI
28th Aug 2025457 PMAQI
28th Aug 2025488 PMAQI
28th Aug 2025489 PMAQI
28th Aug 20255010 PMAQI
28th Aug 20255211 PMAQI
29th Aug 20254912 AMAQI
29th Aug 2025511 AMAQI
29th Aug 2025482 AMAQI
29th Aug 2025473 AMAQI
29th Aug 2025494 AMAQI
28°C28/28°C
29th Aug 2025465 AMAQI
29th Aug 2025466 AMAQI
29th Aug 2025457 AMAQI
29th Aug 2025538 AMAQI
29th Aug 2025319 AMAQI
29th Aug 20253110 AMAQI
29th Aug 20254011 AMAQI
29th Aug 20253812 PMAQI
29th Aug 2025381 PMAQI
29th Aug 2025422 PMAQI
29th Aug 2025473 PMAQI
29th Aug 2025404 PMAQI
29th Aug 2025325 PMAQI
29th Aug 2025466 PMAQI
29th Aug 2025427 PMAQI
29th Aug 2025458 PMAQI
29th Aug 2025509 PMAQI
29th Aug 20254610 PMAQI
29th Aug 20253611 PMAQI
30th Aug 20254212 AMAQI
30th Aug 2025481 AMAQI
30th Aug 2025492 AMAQI
30th Aug 2025493 AMAQI
30th Aug 2025454 AMAQI
28°C28/29°C
30th Aug 2025445 AMAQI
30th Aug 2025466 AMAQI
30th Aug 2025467 AMAQI
30th Aug 2025268 AMAQI
30th Aug 2025339 AMAQI
30th Aug 20253010 AMAQI
30th Aug 20253611 AMAQI
30th Aug 20253112 PMAQI
30th Aug 2025341 PMAQI
30th Aug 2025342 PMAQI
30th Aug 2025383 PMAQI
30th Aug 2025294 PMAQI
30th Aug 2025305 PMAQI
30th Aug 2025326 PMAQI
30th Aug 2025327 PMAQI
30th Aug 2025408 PMAQI
30th Aug 2025509 PMAQI
30th Aug 20253810 PMAQI
30th Aug 20254211 PMAQI
31st Aug 20254312 AMAQI
31st Aug 2025461 AMAQI
31st Aug 2025472 AMAQI
31st Aug 2025443 AMAQI
31st Aug 2025424 AMAQI
28°C27/28°C
31st Aug 2025415 AMAQI
31st Aug 2025446 AMAQI
31st Aug 2025447 AMAQI
31st Aug 2025468 AMAQI
31st Aug 2025469 AMAQI
31st Aug 20255110 AMAQI
31st Aug 20254311 AMAQI
31st Aug 20253612 PMAQI
31st Aug 2025421 PMAQI
31st Aug 2025422 PMAQI
31st Aug 2025383 PMAQI
31st Aug 2025384 PMAQI
31st Aug 2025415 PMAQI
31st Aug 2025386 PMAQI
31st Aug 2025537 PMAQI
31st Aug 2025508 PMAQI
31st Aug 2025479 PMAQI
31st Aug 20254910 PMAQI
31st Aug 20254811 PMAQI
1st Sep 20254612 AMAQI
1st Sep 2025471 AMAQI
1st Sep 2025472 AMAQI
1st Sep 2025523 AMAQI
1st Sep 2025454 AMAQI
28°C28/28°C
1st Sep 2025445 AMAQI
1st Sep 2025486 AMAQI
1st Sep 2025507 AMAQI
1st Sep 2025498 AMAQI
1st Sep 2025499 AMAQI
1st Sep 20255010 AMAQI
1st Sep 20255311 AMAQI
1st Sep 20254212 PMAQI
1st Sep 2025421 PMAQI
1st Sep 2025402 PMAQI
1st Sep 2025463 PMAQI
1st Sep 2025454 PMAQI
1st Sep 2025395 PMAQI
1st Sep 2025416 PMAQI
1st Sep 2025507 PMAQI
1st Sep 2025508 PMAQI
1st Sep 2025539 PMAQI
1st Sep 20255010 PMAQI
1st Sep 20254411 PMAQI
2nd Sep 20254312 AMAQI
2nd Sep 2025451 AMAQI
2nd Sep 2025492 AMAQI
2nd Sep 2025483 AMAQI
2nd Sep 2025504 AMAQI
28°C28/29°C
2nd Sep 2025515 AMAQI
2nd Sep 2025496 AMAQI
2nd Sep 2025507 AMAQI
2nd Sep 2025388 AMAQI
2nd Sep 2025559 AMAQI
2nd Sep 20254710 AMAQI
2nd Sep 20253411 AMAQI
2nd Sep 20253112 PMAQI
2nd Sep 2025411 PMAQI
2nd Sep 2025422 PMAQI
2nd Sep 2025513 PMAQI
2nd Sep 2025424 PMAQI
2nd Sep 2025455 PMAQI
2nd Sep 2025506 PMAQI
2nd Sep 2025507 PMAQI
2nd Sep 2025478 PMAQI
2nd Sep 2025559 PMAQI
2nd Sep 20254910 PMAQI
2nd Sep 20255211 PMAQI
3rd Sep 20255212 AMAQI
3rd Sep 2025501 AMAQI
3rd Sep 2025502 AMAQI
3rd Sep 2025523 AMAQI
3rd Sep 2025494 AMAQI
28°C28/28°C
3rd Sep 2025485 AMAQI
3rd Sep 2025496 AMAQI
3rd Sep 2025517 AMAQI
3rd Sep 2025568 AMAQI
3rd Sep 2025609 AMAQI
3rd Sep 20256010 AMAQI
3rd Sep 20255111 AMAQI
3rd Sep 20255112 PMAQI
3rd Sep 2025581 PMAQI
3rd Sep 2025562 PMAQI
3rd Sep 2025493 PMAQI
3rd Sep 2025484 PMAQI
3rd Sep 2025455 PMAQI
3rd Sep 2025496 PMAQI
3rd Sep 2025467 PMAQI
3rd Sep 2025508 PMAQI
3rd Sep 2025519 PMAQI
3rd Sep 20255310 PMAQI
3rd Sep 20255111 PMAQI
4th Sep 20255112 AMAQI
4th Sep 2025521 AMAQI
4th Sep 2025522 AMAQI
4th Sep 2025523 AMAQI
4th Sep 2025524 AMAQI
29°C28/29°C
4th Sep 2025545 AMAQI
4th Sep 2025536 AMAQI
4th Sep 2025547 AMAQI
4th Sep 2025548 AMAQI
4th Sep 2025609 AMAQI
4th Sep 20255010 AMAQI
4th Sep 20255011 AMAQI
4th Sep 20256112 PMAQI
4th Sep 2025521 PMAQI
4th Sep 2025482 PMAQI
4th Sep 2025563 PMAQI
4th Sep 2025354 PMAQI
4th Sep 2025305 PMAQI
4th Sep 2025366 PMAQI
4th Sep 2025527 PMAQI
4th Sep 2025388 PMAQI
4th Sep 2025289 PMAQI
4th Sep 20252910 PMAQI
4th Sep 20253711 PMAQI
5th Sep 20253312 AMAQI
5th Sep 2025531 AMAQI
5th Sep 2025542 AMAQI
5th Sep 2025553 AMAQI
5th Sep 2025554 AMAQI
29°C28/29°C
5th Sep 2025555 AMAQI
5th Sep 2025576 AMAQI
5th Sep 2025567 AMAQI
5th Sep 2025528 AMAQI
5th Sep 2025679 AMAQI
5th Sep 20256810 AMAQI
5th Sep 20256111 AMAQI
5th Sep 20256212 PMAQI
5th Sep 2025611 PMAQI
5th Sep 2025612 PMAQI
5th Sep 2025583 PMAQI
5th Sep 2025504 PMAQI
5th Sep 2025485 PMAQI
5th Sep 2025576 PMAQI
5th Sep 2025577 PMAQI
5th Sep 2025568 PMAQI
5th Sep 2025509 PMAQI
5th Sep 20255110 PMAQI
5th Sep 20255211 PMAQI
6th Sep 20255412 AMAQI
6th Sep 2025531 AMAQI
6th Sep 2025532 AMAQI
6th Sep 2025543 AMAQI
6th Sep 2025554 AMAQI
28°C28/29°C
6th Sep 2025575 AMAQI
6th Sep 2025556 AMAQI
6th Sep 2025567 AMAQI
6th Sep 2025618 AMAQI
6th Sep 2025509 AMAQI
6th Sep 20255810 AMAQI
6th Sep 20256111 AMAQI
6th Sep 20255412 PMAQI
6th Sep 2025441 PMAQI
6th Sep 2025512 PMAQI
6th Sep 2025523 PMAQI
6th Sep 2025584 PMAQI
6th Sep 2025505 PMAQI
6th Sep 2025526 PMAQI
6th Sep 2025537 PMAQI
6th Sep 2025468 PMAQI
6th Sep 2025489 PMAQI
6th Sep 20255110 PMAQI
6th Sep 20254411 PMAQI
7th Sep 20255112 AMAQI
7th Sep 2025561 AMAQI
7th Sep 2025562 AMAQI
7th Sep 2025573 AMAQI
7th Sep 2025564 AMAQI
29°C28/29°C
7th Sep 2025565 AMAQI
7th Sep 2025566 AMAQI
7th Sep 2025567 AMAQI
7th Sep 2025368 AMAQI
7th Sep 2025349 AMAQI
7th Sep 20254110 AMAQI
7th Sep 20254011 AMAQI
7th Sep 20254412 PMAQI
7th Sep 2025321 PMAQI
7th Sep 2025282 PMAQI
7th Sep 2025283 PMAQI
7th Sep 2025224 PMAQI
7th Sep 2025365 PMAQI
7th Sep 2025356 PMAQI
7th Sep 2025367 PMAQI
7th Sep 2025458 PMAQI
7th Sep 2025419 PMAQI
7th Sep 20254110 PMAQI
7th Sep 20254011 PMAQI
8th Sep 20254712 AMAQI
8th Sep 2025531 AMAQI
8th Sep 2025552 AMAQI
8th Sep 2025543 AMAQI
8th Sep 2025534 AMAQI
29°C28/29°C
8th Sep 2025535 AMAQI
8th Sep 2025546 AMAQI
8th Sep 2025547 AMAQI
8th Sep 2025168 AMAQI
8th Sep 2025129 AMAQI
8th Sep 20251210 AMAQI
8th Sep 20251911 AMAQI
8th Sep 20253012 PMAQI
8th Sep 2025261 PMAQI
8th Sep 2025282 PMAQI
8th Sep 2025213 PMAQI
8th Sep 2025334 PMAQI
8th Sep 2025265 PMAQI
8th Sep 2025306 PMAQI
8th Sep 2025467 PMAQI
8th Sep 2025508 PMAQI
8th Sep 2025429 PMAQI
8th Sep 20254710 PMAQI
8th Sep 20254811 PMAQI
9th Sep 20255212 AMAQI
9th Sep 2025521 AMAQI
9th Sep 2025542 AMAQI
9th Sep 2025523 AMAQI
9th Sep 2025514 AMAQI
28°C27/29°C
9th Sep 2025515 AMAQI
9th Sep 2025516 AMAQI
9th Sep 2025497 AMAQI
9th Sep 2025388 AMAQI
9th Sep 2025309 AMAQI
9th Sep 20253110 AMAQI
9th Sep 20252211 AMAQI
9th Sep 20253112 PMAQI
9th Sep 2025221 PMAQI
9th Sep 2025232 PMAQI
9th Sep 2025223 PMAQI
9th Sep 2025264 PMAQI
9th Sep 2025255 PMAQI
9th Sep 2025336 PMAQI
9th Sep 2025337 PMAQI
9th Sep 2025368 PMAQI
9th Sep 2025389 PMAQI
9th Sep 20253810 PMAQI
9th Sep 20253911 PMAQI
10th Sep 20254412 AMAQI
10th Sep 2025511 AMAQI
10th Sep 2025522 AMAQI
10th Sep 2025533 AMAQI
10th Sep 2025494 AMAQI
28°C28/29°C
10th Sep 2025485 AMAQI
10th Sep 2025516 AMAQI
10th Sep 2025497 AMAQI
10th Sep 2025338 AMAQI
10th Sep 2025259 AMAQI
10th Sep 20252610 AMAQI
10th Sep 20252911 AMAQI
10th Sep 20252012 PMAQI
10th Sep 2025251 PMAQI
10th Sep 2025332 PMAQI
10th Sep 2025423 PMAQI
10th Sep 2025284 PMAQI
10th Sep 2025305 PMAQI
10th Sep 2025426 PMAQI
10th Sep 2025447 PMAQI
10th Sep 2025448 PMAQI
10th Sep 2025379 PMAQI
10th Sep 20253710 PMAQI
10th Sep 20254211 PMAQI
11th Sep 20254612 AMAQI
11th Sep 2025501 AMAQI
11th Sep 2025522 AMAQI
11th Sep 2025503 AMAQI
11th Sep 2025474 AMAQI
28°C28/29°C
11th Sep 2025495 AMAQI
11th Sep 2025496 AMAQI
11th Sep 2025477 AMAQI
11th Sep 2025188 AMAQI
11th Sep 2025289 AMAQI
11th Sep 20252010 AMAQI
11th Sep 20252811 AMAQI
11th Sep 20252412 PMAQI
11th Sep 2025341 PMAQI
11th Sep 2025352 PMAQI
11th Sep 2025313 PMAQI
11th Sep 2025294 PMAQI
11th Sep 2025305 PMAQI
11th Sep 2025346 PMAQI
11th Sep 2025447 PMAQI
11th Sep 2025468 PMAQI
11th Sep 2025469 PMAQI
11th Sep 20254210 PMAQI
11th Sep 20254111 PMAQI
12th Sep 20254312 AMAQI
12th Sep 2025501 AMAQI
12th Sep 2025522 AMAQI
12th Sep 2025493 AMAQI
12th Sep 2025514 AMAQI
29°C28/29°C
12th Sep 2025475 AMAQI
12th Sep 2025506 AMAQI
12th Sep 2025497 AMAQI
12th Sep 2025428 AMAQI
12th Sep 2025439 AMAQI
12th Sep 20252810 AMAQI
12th Sep 20253811 AMAQI
12th Sep 20253712 PMAQI
12th Sep 2025391 PMAQI
12th Sep 2025382 PMAQI
12th Sep 2025343 PMAQI
12th Sep 2025404 PMAQI
12th Sep 2025365 PMAQI
12th Sep 2025426 PMAQI
12th Sep 2025437 PMAQI
12th Sep 2025448 PMAQI
12th Sep 2025489 PMAQI
12th Sep 20254910 PMAQI
12th Sep 20255011 PMAQI
13th Sep 20254812 AMAQI
13th Sep 2025501 AMAQI
13th Sep 2025522 AMAQI
13th Sep 2025503 AMAQI
13th Sep 2025504 AMAQI
28°C28/29°C
13th Sep 2025485 AMAQI
13th Sep 2025496 AMAQI
13th Sep 2025507 AMAQI
13th Sep 2025468 AMAQI
13th Sep 2025389 AMAQI
13th Sep 20255210 AMAQI
13th Sep 20253811 AMAQI
13th Sep 20253812 PMAQI
13th Sep 2025441 PMAQI
13th Sep 2025342 PMAQI
13th Sep 2025303 PMAQI
13th Sep 2025254 PMAQI
13th Sep 2025265 PMAQI
13th Sep 2025266 PMAQI
13th Sep 2025357 PMAQI
13th Sep 2025458 PMAQI
13th Sep 2025429 PMAQI
13th Sep 20254210 PMAQI
13th Sep 20254311 PMAQI
14th Sep 20254512 AMAQI
14th Sep 2025501 AMAQI
14th Sep 2025512 AMAQI
14th Sep 2025493 AMAQI
14th Sep 2025504 AMAQI
29°C28/29°C
14th Sep 2025495 AMAQI
14th Sep 2025476 AMAQI
14th Sep 2025497 AMAQI
14th Sep 2025498 AMAQI
14th Sep 2025389 AMAQI
14th Sep 20254110 AMAQI
14th Sep 20253611 AMAQI
14th Sep 20254312 PMAQI
14th Sep 2025371 PMAQI
14th Sep 2025502 PMAQI
14th Sep 2025483 PMAQI
14th Sep 2025454 PMAQI
14th Sep 2025345 PMAQI
14th Sep 2025496 PMAQI
14th Sep 2025507 PMAQI
14th Sep 2025448 PMAQI
14th Sep 2025489 PMAQI
14th Sep 20254410 PMAQI
14th Sep 20254411 PMAQI
15th Sep 20255212 AMAQI
15th Sep 2025511 AMAQI
15th Sep 2025472 AMAQI
15th Sep 2025503 AMAQI
15th Sep 2025494 AMAQI
29°C28/29°C
15th Sep 2025495 AMAQI
15th Sep 2025506 AMAQI
15th Sep 2025517 AMAQI
15th Sep 2025578 AMAQI
15th Sep 2025589 AMAQI
15th Sep 20255710 AMAQI
15th Sep 20254411 AMAQI
15th Sep 20254712 PMAQI
15th Sep 2025331 PMAQI
15th Sep 2025322 PMAQI
15th Sep 2025303 PMAQI
15th Sep 2025364 PMAQI
15th Sep 2025305 PMAQI
15th Sep 2025396 PMAQI
15th Sep 2025427 PMAQI
15th Sep 2025468 PMAQI
15th Sep 2025469 PMAQI
15th Sep 20254310 PMAQI
15th Sep 20254411 PMAQI
16th Sep 20255212 AMAQI
16th Sep 2025511 AMAQI
16th Sep 2025512 AMAQI
16th Sep 2025523 AMAQI
16th Sep 2025504 AMAQI
29°C28/29°C
16th Sep 2025515 AMAQI
16th Sep 2025506 AMAQI
16th Sep 2025507 AMAQI
16th Sep 2025368 AMAQI
16th Sep 2025389 AMAQI
16th Sep 20253010 AMAQI
16th Sep 20252611 AMAQI
16th Sep 20252612 PMAQI
16th Sep 2025421 PMAQI
16th Sep 2025302 PMAQI
16th Sep 2025443 PMAQI
16th Sep 2025474 PMAQI
16th Sep 2025445 PMAQI
16th Sep 2025436 PMAQI
16th Sep 2025447 PMAQI
16th Sep 2025448 PMAQI
16th Sep 2025419 PMAQI
16th Sep 20254410 PMAQI
16th Sep 20254511 PMAQI
17th Sep 20255312 AMAQI
17th Sep 2025511 AMAQI
17th Sep 2025512 AMAQI
17th Sep 2025483 AMAQI
17th Sep 2025484 AMAQI
29°C28/29°C
17th Sep 2025485 AMAQI
17th Sep 2025486 AMAQI
17th Sep 2025487 AMAQI
17th Sep 2025498 AMAQI
17th Sep 2025549 AMAQI
17th Sep 20254510 AMAQI
17th Sep 20254411 AMAQI
17th Sep 20255212 PMAQI
17th Sep 2025541 PMAQI
17th Sep 2025452 PMAQI
17th Sep 2025573 PMAQI
17th Sep 2025494 PMAQI
17th Sep 2025365 PMAQI
17th Sep 2025436 PMAQI
17th Sep 2025487 PMAQI
17th Sep 2025528 PMAQI
17th Sep 2025499 PMAQI
17th Sep 20254410 PMAQI
17th Sep 20254111 PMAQI
18th Sep 20254712 AMAQI
18th Sep 2025501 AMAQI
18th Sep 2025512 AMAQI
18th Sep 2025513 AMAQI
18th Sep 2025524 AMAQI
29°C28/29°C
18th Sep 2025525 AMAQI
18th Sep 2025516 AMAQI
18th Sep 2025527 AMAQI
18th Sep 2025638 AMAQI
18th Sep 2025629 AMAQI
18th Sep 20255610 AMAQI
18th Sep 20255311 AMAQI
18th Sep 20255612 PMAQI
18th Sep 2025361 PMAQI
18th Sep 2025342 PMAQI
18th Sep 2025303 PMAQI
18th Sep 2025304 PMAQI
18th Sep 2025265 PMAQI
18th Sep 2025276 PMAQI
18th Sep 2025307 PMAQI
18th Sep 2025408 PMAQI
18th Sep 2025489 PMAQI
18th Sep 20253510 PMAQI
18th Sep 20253511 PMAQI
19th Sep 20253612 AMAQI
19th Sep 2025521 AMAQI
19th Sep 2025522 AMAQI
19th Sep 2025523 AMAQI
19th Sep 2025524 AMAQI
28°C28/29°C
19th Sep 2025525 AMAQI
19th Sep 2025526 AMAQI
19th Sep 2025527 AMAQI
19th Sep 2025298 AMAQI
19th Sep 2025219 AMAQI
19th Sep 20252010 AMAQI
19th Sep 20252611 AMAQI
19th Sep 20253212 PMAQI
19th Sep 2025301 PMAQI
19th Sep 2025452 PMAQI
19th Sep 2025383 PMAQI
19th Sep 2025294 PMAQI
19th Sep 2025345 PMAQI
19th Sep 2025246 PMAQI
19th Sep 2025287 PMAQI
19th Sep 2025338 PMAQI
19th Sep 2025409 PMAQI
19th Sep 20253810 PMAQI
19th Sep 20253411 PMAQI
20th Sep 20253612 AMAQI
20th Sep 2025511 AMAQI
20th Sep 2025522 AMAQI
20th Sep 2025513 AMAQI
20th Sep 2025494 AMAQI
28°C28/28°C
20th Sep 2025485 AMAQI
20th Sep 2025486 AMAQI
20th Sep 2025487 AMAQI
20th Sep 2025278 AMAQI
20th Sep 2025389 AMAQI
20th Sep 20252710 AMAQI
20th Sep 20252211 AMAQI
20th Sep 20252412 PMAQI
20th Sep 2025311 PMAQI
20th Sep 2025262 PMAQI
20th Sep 2025383 PMAQI
20th Sep 2025374 PMAQI
20th Sep 2025355 PMAQI
20th Sep 2025326 PMAQI
20th Sep 2025527 PMAQI
20th Sep 2025508 PMAQI
20th Sep 2025429 PMAQI
20th Sep 20253810 PMAQI
20th Sep 20253611 PMAQI
21st Sep 20253812 AMAQI
21st Sep 2025481 AMAQI
21st Sep 2025502 AMAQI
21st Sep 2025493 AMAQI
21st Sep 2025444 AMAQI
28°C27/28°C
21st Sep 2025455 AMAQI
21st Sep 2025456 AMAQI
21st Sep 2025467 AMAQI
21st Sep 2025438 AMAQI
21st Sep 2025489 AMAQI
21st Sep 20254110 AMAQI
21st Sep 20252811 AMAQI
21st Sep 20254212 PMAQI
21st Sep 2025481 PMAQI
21st Sep 2025522 PMAQI
21st Sep 2025523 PMAQI
21st Sep 2025354 PMAQI
21st Sep 2025245 PMAQI
21st Sep 2025246 PMAQI
21st Sep 2025377 PMAQI
21st Sep 2025418 PMAQI
21st Sep 2025499 PMAQI
21st Sep 20254410 PMAQI
21st Sep 20254311 PMAQI
22nd Sep 20253712 AMAQI
22nd Sep 2025521 AMAQI
22nd Sep 2025382 AMAQI
22nd Sep 2025383 AMAQI
22nd Sep 2025544 AMAQI
28°C27/28°C
22nd Sep 2025725 AMAQI
5 AM22nd Sep 2025476 AMAQI
22nd Sep 2025467 AMAQI
22nd Sep 2025438 AMAQI
22nd Sep 2025469 AMAQI
22nd Sep 20255210 AMAQI
22nd Sep 20254211 AMAQI
11 AM22nd Sep 20255312 PMAQI
22nd Sep 2025571 PMAQI
22nd Sep 2025472 PMAQI
22nd Sep 2025473 PMAQI
22nd Sep 2025504 PMAQI
22nd Sep 2025485 PMAQI
22nd Sep 2025496 PMAQI
6 PM22nd Sep 2025507 PMAQI
22nd Sep 2025528 PMAQI
22nd Sep 2025589 PMAQI
22nd Sep 20255410 PMAQI
11 PM
4 AM
--°C/°C
Day time
Avg. Highest Time
5 AM - 7 AM
50AQI
3 hours / Day
90 hours / Month
Avg. Lowest Time
4 PM - 5 PM
38AQI
2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 7 AM (Avg. 50), while the lowest AQI was between 4 PM to 5 PM (Avg. 38).
Night time
Avg. Highest Time
1 AM - 4 AM
50AQI
4 hours / Day
120 hours / Month
Avg. Lowest Time
7 PM
44AQI
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. 50), while the lowest AQI was between 7 PM to 7 PM (Avg. 44).
2025 Days Vs Air Quality
Islandtaipower Chianshan, Magong, Penghu, Taiwan
2025
53%
139
47%
125
Total number of days with different AQI categories in last 265 days in 2025 (100 days remaining)
Good
139 DaysModerate
125 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 53%
Health Risk Level:
Considerable
In 2025, 53% of 265 days were within WHO’s safe air quality limits, and 47% exceeded them. The risk of health issues is Considerable, with potential for conditions in sensitive individuals.
Annual Air Quality Insights
Islandtaipower Chianshan, Magong, Penghu, 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
69AQI
69AQI
2nd January 2025
56AQI
56AQI
3rd January 2025
64AQI
64AQI
4th January 2025
57AQI
57AQI
5th January 2025
52AQI
52AQI
6th January 2025
72AQI
72AQI
7th January 2025
62AQI
62AQI
8th January 2025
58AQI
58AQI
9th January 2025
66AQI
66AQI
10th January 2025
56AQI
56AQI
11th January 2025
56AQI
56AQI
12th January 2025
53AQI
53AQI
13th January 2025
57AQI
57AQI
14th January 2025
67AQI
67AQI
15th January 2025
79AQI
79AQI
16th January 2025
59AQI
59AQI
17th January 2025
61AQI
61AQI
18th January 2025
63AQI
63AQI
19th January 2025
56AQI
56AQI
20th January 2025
67AQI
67AQI
21st January 2025
91AQI
91AQI
22nd January 2025
73AQI
73AQI
23rd January 2025
64AQI
64AQI
24th January 2025
62AQI
62AQI
25th January 2025
68AQI
68AQI
26th January 2025
60AQI
60AQI
27th January 2025
53AQI
53AQI
28th January 2025
54AQI
54AQI
29th January 2025
52AQI
52AQI
30th January 2025
61AQI
61AQI
31st January 2025
57AQI
57AQI
1st February 2025
54AQI
54AQI
2nd February 2025
44AQI
44AQI
3rd February 2025
47AQI
47AQI
4th February 2025
74AQI
74AQI
5th February 2025
56AQI
56AQI
6th February 2025
57AQI
57AQI
7th February 2025
50AQI
50AQI
8th February 2025
59AQI
59AQI
9th February 2025
52AQI
52AQI
10th February 2025
53AQI
53AQI
11th February 2025
52AQI
52AQI
12th February 2025
48AQI
48AQI
13th February 2025
61AQI
61AQI
14th February 2025
58AQI
58AQI
15th February 2025
64AQI
64AQI
16th February 2025
55AQI
55AQI
17th February 2025
94AQI
94AQI
18th February 2025
56AQI
56AQI
19th February 2025
67AQI
67AQI
20th February 2025
55AQI
55AQI
21st February 2025
48AQI
48AQI
22nd February 2025
53AQI
53AQI
23rd February 2025
43AQI
43AQI
24th February 2025
69AQI
69AQI
25th February 2025
75AQI
75AQI
26th February 2025
63AQI
63AQI
27th February 2025
81AQI
81AQI
28th February 2025
64AQI
64AQI
1st March 2025
63AQI
63AQI
2nd March 2025
63AQI
63AQI
3rd March 2025
49AQI
49AQI
4th March 2025
47AQI
47AQI
5th March 2025
38AQI
38AQI
6th March 2025
44AQI
44AQI
7th March 2025
58AQI
58AQI
8th March 2025
56AQI
56AQI
9th March 2025
60AQI
60AQI
10th March 2025
57AQI
57AQI
11th March 2025
63AQI
63AQI
12th March 2025
59AQI
59AQI
13th March 2025
47AQI
47AQI
14th March 2025
51AQI
51AQI
15th March 2025
44AQI
44AQI
16th March 2025
42AQI
42AQI
17th March 2025
66AQI
66AQI
18th March 2025
53AQI
53AQI
19th March 2025
67AQI
67AQI
20th March 2025
60AQI
60AQI
21st March 2025
61AQI
61AQI
22nd March 2025
57AQI
57AQI
23rd March 2025
57AQI
57AQI
24th March 2025
58AQI
58AQI
25th March 2025
54AQI
54AQI
26th March 2025
55AQI
55AQI
27th March 2025
50AQI
50AQI
28th March 2025
57AQI
57AQI
29th March 2025
42AQI
42AQI
30th March 2025
39AQI
39AQI
31st March 2025
32AQI
32AQI
1st April 2025
39AQI
39AQI
2nd April 2025
48AQI
48AQI
3rd April 2025
53AQI
53AQI
4th April 2025
62AQI
62AQI
5th April 2025
59AQI
59AQI
6th April 2025
61AQI
61AQI
7th April 2025
74AQI
74AQI
8th April 2025
68AQI
68AQI
9th April 2025
62AQI
62AQI
10th April 2025
60AQI
60AQI
11th April 2025
63AQI
63AQI
12th April 2025
51AQI
51AQI
13th April 2025
76AQI
76AQI
14th April 2025
74AQI
74AQI
15th April 2025
77AQI
77AQI
16th April 2025
71AQI
71AQI
17th April 2025
72AQI
72AQI
18th April 2025
60AQI
60AQI
19th April 2025
55AQI
55AQI
20th April 2025
56AQI
56AQI
21st April 2025
51AQI
51AQI
22nd April 2025
58AQI
58AQI
23rd April 2025
57AQI
57AQI
24th April 2025
53AQI
53AQI
25th April 2025
39AQI
39AQI
26th April 2025
40AQI
40AQI
27th April 2025
47AQI
47AQI
28th April 2025
53AQI
53AQI
29th April 2025
56AQI
56AQI
30th April 2025
54AQI
54AQI
1st May 2025
56AQI
56AQI
2nd May 2025
66AQI
66AQI
3rd May 2025
65AQI
65AQI
4th May 2025
67AQI
67AQI
5th May 2025
62AQI
62AQI
6th May 2025
65AQI
65AQI
7th May 2025
57AQI
57AQI
8th May 2025
55AQI
55AQI
9th May 2025
41AQI
41AQI
10th May 2025
42AQI
42AQI
11th May 2025
43AQI
43AQI
12th May 2025
59AQI
59AQI
13th May 2025
59AQI
59AQI
14th May 2025
59AQI
59AQI
15th May 2025
51AQI
51AQI
16th May 2025
44AQI
44AQI
17th May 2025
38AQI
38AQI
18th May 2025
35AQI
35AQI
19th May 2025
34AQI
34AQI
20th May 2025
34AQI
34AQI
21st May 2025
33AQI
33AQI
22nd May 2025
42AQI
42AQI
23rd May 2025
37AQI
37AQI
24th May 2025
41AQI
41AQI
25th May 2025
60AQI
60AQI
26th May 2025
57AQI
57AQI
27th May 2025
57AQI
57AQI
28th May 2025
50AQI
50AQI
29th May 2025
35AQI
35AQI
30th May 2025
53AQI
53AQI
31st May 2025
62AQI
62AQI
1st June 2025
59AQI
59AQI
2nd June 2025
46AQI
46AQI
3rd June 2025
39AQI
39AQI
4th June 2025
39AQI
39AQI
5th June 2025
35AQI
35AQI
6th June 2025
41AQI
41AQI
7th June 2025
33AQI
33AQI
8th June 2025
36AQI
36AQI
9th June 2025
38AQI
38AQI
10th June 2025
39AQI
39AQI
11th June 2025
44AQI
44AQI
12th June 2025
47AQI
47AQI
13th June 2025
30AQI
30AQI
14th June 2025
42AQI
42AQI
15th June 2025
44AQI
44AQI
16th June 2025
41AQI
41AQI
17th June 2025
36AQI
36AQI
18th June 2025
39AQI
39AQI
19th June 2025
38AQI
38AQI
20th June 2025
37AQI
37AQI
21st June 2025
30AQI
30AQI
22nd June 2025
22AQI
22AQI
23rd June 2025
27AQI
27AQI
24th June 2025
23AQI
23AQI
25th June 2025
26AQI
26AQI
26th June 2025
27AQI
27AQI
27th June 2025
24AQI
24AQI
28th June 2025
27AQI
27AQI
29th June 2025
25AQI
25AQI
30th June 2025
29AQI
29AQI
1st July 2025
36AQI
36AQI
2nd July 2025
39AQI
39AQI
3rd July 2025
44AQI
44AQI
4th July 2025
43AQI
43AQI
5th July 2025
38AQI
38AQI
6th July 2025
33AQI
33AQI
7th July 2025
40AQI
40AQI
8th July 2025
43AQI
43AQI
9th July 2025
48AQI
48AQI
10th July 2025
37AQI
37AQI
11th July 2025
45AQI
45AQI
12th July 2025
50AQI
50AQI
13th July 2025
52AQI
52AQI
14th July 2025
52AQI
52AQI
15th July 2025
49AQI
49AQI
16th July 2025
51AQI
51AQI
17th July 2025
52AQI
52AQI
18th July 2025
48AQI
48AQI
19th July 2025
51AQI
51AQI
20th July 2025
45AQI
45AQI
21st July 2025
43AQI
43AQI
22nd July 2025
43AQI
43AQI
23rd July 2025
45AQI
45AQI
24th July 2025
43AQI
43AQI
25th July 2025
38AQI
38AQI
26th July 2025
46AQI
46AQI
27th July 2025
42AQI
42AQI
28th July 2025
37AQI
37AQI
29th July 2025
42AQI
42AQI
30th July 2025
47AQI
47AQI
31st July 2025
47AQI
47AQI
1st August 2025
45AQI
45AQI
2nd August 2025
47AQI
47AQI
3rd August 2025
45AQI
45AQI
4th August 2025
38AQI
38AQI
5th August 2025
47AQI
47AQI
6th August 2025
47AQI
47AQI
7th August 2025
54AQI
54AQI
8th August 2025
52AQI
52AQI
9th August 2025
43AQI
43AQI
10th August 2025
45AQI
45AQI
11th August 2025
41AQI
41AQI
12th August 2025
46AQI
46AQI
13th August 2025
46AQI
46AQI
14th August 2025
39AQI
39AQI
15th August 2025
41AQI
41AQI
16th August 2025
43AQI
43AQI
17th August 2025
38AQI
38AQI
18th August 2025
37AQI
37AQI
19th August 2025
36AQI
36AQI
20th August 2025
39AQI
39AQI
21st August 2025
41AQI
41AQI
22nd August 2025
46AQI
46AQI
23rd August 2025
48AQI
48AQI
24th August 2025
47AQI
47AQI
25th August 2025
46AQI
46AQI
26th August 2025
43AQI
43AQI
27th August 2025
42AQI
42AQI
28th August 2025
44AQI
44AQI
29th August 2025
44AQI
44AQI
30th August 2025
39AQI
39AQI
31st August 2025
44AQI
44AQI
1st September 2025
47AQI
47AQI
2nd September 2025
47AQI
47AQI
3rd September 2025
51AQI
51AQI
4th September 2025
45AQI
45AQI
5th September 2025
49AQI
49AQI
6th September 2025
52AQI
52AQI
7th September 2025
44AQI
44AQI
8th September 2025
40AQI
40AQI
9th September 2025
38AQI
38AQI
10th September 2025
40AQI
40AQI
11th September 2025
40AQI
40AQI
12th September 2025
44AQI
44AQI
13th September 2025
42AQI
42AQI
14th September 2025
45AQI
45AQI
15th September 2025
45AQI
45AQI
16th September 2025
44AQI
44AQI
17th September 2025
48AQI
48AQI
18th September 2025
44AQI
44AQI
19th September 2025
38AQI
38AQI
20th September 2025
40AQI
40AQI
21st September 2025
43AQI
43AQI
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
62AQI
59AQI
53AQI
58AQI
50AQI
35AQI
44AQI
44AQI
44AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202550AQI
31
6
22
11
20
5
25
14
17
29
1
26
5
29
2
19
2
139
125
Highest AQI recorded in
January62AQI
Lowest AQI recorded in
June35AQI
202446AQI
10
21
21
8
10
21
14
16
20
11
29
31
30
1
24
6
20
11
25
5
11
20
245
120
Highest AQI recorded in
March57AQI
Lowest AQI recorded in
July35AQI
202352AQI
10
21
9
19
9
22
4
26
8
23
15
10
27
4
28
3
16
14
7
22
12
17
18
13
163
194
Highest AQI recorded in
April62AQI
Lowest AQI recorded in
August38AQI
202245AQI
14
16
14
7
4
27
5
25
22
9
30
24
1
11
16
1
29
2
30
29
2
213
104
1
Highest AQI recorded in
April60AQI
Lowest AQI recorded in
July25AQI
202156AQI
3
25
1
3
24
1
1
26
2
27
1
22
9
19
11
24
6
1
17
14
14
16
11
20
11
19
17
13
144
210
4
Highest AQI recorded in
February74AQI
Lowest AQI recorded in
May43AQI
202054AQI
2
13
15
3
24
6
31
22
9
6
24
31
1
29
2
29
103
144
Highest AQI recorded in
October64AQI
Lowest AQI recorded in
July39AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2021(Avg.)
56AQILeast Polluted Year Recorded
2022(Avg.)
45AQIIslandtaipower Chianshan's annual 2025 AQI (50) shows an average percentage change of 0.01% (worsened AQI) compared to previous years: 2020 (54), 2021 (56), 2022 (45), 2023 (52), 2024 (46).
