Huatan, Changhua, 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
Huatan, Changhua, Taiwan
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
30th Aug 2021
90AQILowest AQI recorded on
19th Aug 2024
20AQISame Day Analysis (4th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 42 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 4th Aug - 5th Aug 2025
Huatan, Changhua, Taiwan
AQI
Day
Night
.
5 AM4th Aug 2025
6 PM
4 AM5th Aug 2025
Day time
Avg. Highest Time
5AM4th Aug
51AQI
Avg. Lowest Time
12PM4th Aug
22AQI
Night time
Avg. Highest Time
2AM5th Aug
52AQI
Avg. Lowest Time
7PM4th Aug
33AQI
In the last 24 hours,
Huatan's AQI reached its highest point of 52 at 2 AM during the Night, while the lowest point, 22, was recorded at 12 PM during the Day between 4th Aug and 5th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Huatan, Changhua, Taiwan
JulAug
06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th
Day
Night
6th Jul 2025405 AMAQI
6th Jul 2025416 AMAQI
6th Jul 2025407 AMAQI
6th Jul 2025358 AMAQI
6th Jul 2025289 AMAQI
6th Jul 20253910 AMAQI
6th Jul 20255111 AMAQI
6th Jul 20254212 PMAQI
6th Jul 2025411 PMAQI
6th Jul 2025362 PMAQI
6th Jul 2025303 PMAQI
6th Jul 2025264 PMAQI
6th Jul 2025285 PMAQI
6th Jul 2025396 PMAQI
6th Jul 2025447 PMAQI
6th Jul 2025398 PMAQI
6th Jul 2025409 PMAQI
6th Jul 20254010 PMAQI
6th Jul 20254011 PMAQI
7th Jul 20254212 AMAQI
7th Jul 2025411 AMAQI
7th Jul 2025392 AMAQI
7th Jul 2025393 AMAQI
7th Jul 2025404 AMAQI
26°C25/27°C
7th Jul 2025395 AMAQI
7th Jul 2025396 AMAQI
7th Jul 2025397 AMAQI
7th Jul 2025228 AMAQI
7th Jul 2025159 AMAQI
7th Jul 20251510 AMAQI
7th Jul 20251811 AMAQI
7th Jul 20252112 PMAQI
7th Jul 2025221 PMAQI
7th Jul 2025252 PMAQI
7th Jul 2025263 PMAQI
7th Jul 2025294 PMAQI
7th Jul 2025355 PMAQI
7th Jul 2025396 PMAQI
7th Jul 2025377 PMAQI
7th Jul 2025388 PMAQI
7th Jul 2025389 PMAQI
7th Jul 20254010 PMAQI
7th Jul 20254011 PMAQI
8th Jul 20254012 AMAQI
8th Jul 2025411 AMAQI
8th Jul 2025422 AMAQI
8th Jul 2025393 AMAQI
8th Jul 2025384 AMAQI
27°C24/28°C
8th Jul 2025395 AMAQI
8th Jul 2025386 AMAQI
8th Jul 2025387 AMAQI
8th Jul 2025368 AMAQI
8th Jul 2025429 AMAQI
8th Jul 20254710 AMAQI
8th Jul 20254711 AMAQI
8th Jul 20254612 PMAQI
8th Jul 2025381 PMAQI
8th Jul 2025382 PMAQI
8th Jul 2025363 PMAQI
8th Jul 2025334 PMAQI
8th Jul 2025325 PMAQI
8th Jul 2025316 PMAQI
8th Jul 2025387 PMAQI
8th Jul 2025428 PMAQI
8th Jul 2025449 PMAQI
8th Jul 20253810 PMAQI
8th Jul 20253811 PMAQI
9th Jul 20253812 AMAQI
9th Jul 2025391 AMAQI
9th Jul 2025402 AMAQI
9th Jul 2025403 AMAQI
9th Jul 2025394 AMAQI
29°C26/33°C
9th Jul 2025405 AMAQI
9th Jul 2025396 AMAQI
9th Jul 2025417 AMAQI
9th Jul 2025338 AMAQI
9th Jul 2025249 AMAQI
9th Jul 20252610 AMAQI
9th Jul 20253311 AMAQI
9th Jul 20253812 PMAQI
9th Jul 2025401 PMAQI
9th Jul 2025372 PMAQI
9th Jul 2025423 PMAQI
9th Jul 2025384 PMAQI
9th Jul 2025365 PMAQI
9th Jul 2025356 PMAQI
9th Jul 2025407 PMAQI
9th Jul 2025428 PMAQI
9th Jul 2025429 PMAQI
9th Jul 20254110 PMAQI
9th Jul 20253811 PMAQI
10th Jul 20253712 AMAQI
10th Jul 2025411 AMAQI
10th Jul 2025402 AMAQI
10th Jul 2025393 AMAQI
10th Jul 2025394 AMAQI
28°C26/31°C
10th Jul 2025395 AMAQI
10th Jul 2025396 AMAQI
10th Jul 2025397 AMAQI
10th Jul 2025358 AMAQI
10th Jul 2025269 AMAQI
10th Jul 20252110 AMAQI
10th Jul 20252311 AMAQI
10th Jul 20253012 PMAQI
10th Jul 2025311 PMAQI
10th Jul 2025282 PMAQI
10th Jul 2025303 PMAQI
10th Jul 2025294 PMAQI
10th Jul 2025285 PMAQI
10th Jul 2025306 PMAQI
10th Jul 2025347 PMAQI
10th Jul 2025388 PMAQI
10th Jul 2025429 PMAQI
10th Jul 20254010 PMAQI
10th Jul 20254011 PMAQI
11th Jul 20254012 AMAQI
11th Jul 2025391 AMAQI
11th Jul 2025412 AMAQI
11th Jul 2025403 AMAQI
11th Jul 2025394 AMAQI
25°C24/26°C
11th Jul 2025385 AMAQI
11th Jul 2025396 AMAQI
11th Jul 2025387 AMAQI
11th Jul 2025218 AMAQI
11th Jul 2025179 AMAQI
11th Jul 20251610 AMAQI
11th Jul 20251911 AMAQI
11th Jul 20252812 PMAQI
11th Jul 2025341 PMAQI
11th Jul 2025452 PMAQI
11th Jul 2025383 PMAQI
11th Jul 2025334 PMAQI
11th Jul 2025365 PMAQI
11th Jul 2025366 PMAQI
11th Jul 2025377 PMAQI
11th Jul 2025388 PMAQI
11th Jul 2025429 PMAQI
11th Jul 20254010 PMAQI
11th Jul 20254111 PMAQI
12th Jul 20254012 AMAQI
12th Jul 2025391 AMAQI
12th Jul 2025402 AMAQI
12th Jul 2025403 AMAQI
12th Jul 2025404 AMAQI
27°C24/31°C
12th Jul 2025395 AMAQI
12th Jul 2025406 AMAQI
12th Jul 2025397 AMAQI
12th Jul 2025368 AMAQI
12th Jul 2025459 AMAQI
12th Jul 20254610 AMAQI
12th Jul 20255011 AMAQI
12th Jul 20254512 PMAQI
12th Jul 2025501 PMAQI
12th Jul 2025462 PMAQI
12th Jul 2025413 PMAQI
12th Jul 2025434 PMAQI
12th Jul 2025405 PMAQI
12th Jul 2025396 PMAQI
12th Jul 2025407 PMAQI
12th Jul 2025418 PMAQI
12th Jul 2025409 PMAQI
12th Jul 20253810 PMAQI
12th Jul 20253811 PMAQI
13th Jul 20254012 AMAQI
13th Jul 2025401 AMAQI
13th Jul 2025412 AMAQI
13th Jul 2025413 AMAQI
13th Jul 2025424 AMAQI
29°C26/33°C
13th Jul 2025405 AMAQI
13th Jul 2025416 AMAQI
13th Jul 2025407 AMAQI
13th Jul 2025418 AMAQI
13th Jul 2025469 AMAQI
13th Jul 20255310 AMAQI
13th Jul 20255111 AMAQI
13th Jul 20254612 PMAQI
13th Jul 2025481 PMAQI
13th Jul 2025482 PMAQI
13th Jul 2025463 PMAQI
13th Jul 2025454 PMAQI
13th Jul 2025525 PMAQI
13th Jul 2025526 PMAQI
13th Jul 2025517 PMAQI
13th Jul 2025448 PMAQI
13th Jul 2025449 PMAQI
13th Jul 20254410 PMAQI
13th Jul 20254511 PMAQI
14th Jul 20254412 AMAQI
14th Jul 2025411 AMAQI
14th Jul 2025402 AMAQI
14th Jul 2025403 AMAQI
14th Jul 2025424 AMAQI
30°C27/33°C
14th Jul 2025425 AMAQI
14th Jul 2025426 AMAQI
14th Jul 2025427 AMAQI
14th Jul 2025518 AMAQI
14th Jul 2025559 AMAQI
14th Jul 20255510 AMAQI
14th Jul 20255411 AMAQI
14th Jul 20255112 PMAQI
14th Jul 2025521 PMAQI
14th Jul 2025522 PMAQI
14th Jul 2025523 PMAQI
14th Jul 2025504 PMAQI
14th Jul 2025525 PMAQI
14th Jul 2025546 PMAQI
14th Jul 2025507 PMAQI
14th Jul 2025488 PMAQI
14th Jul 2025469 PMAQI
14th Jul 20254710 PMAQI
14th Jul 20254811 PMAQI
15th Jul 20254512 AMAQI
15th Jul 2025441 AMAQI
15th Jul 2025442 AMAQI
15th Jul 2025453 AMAQI
15th Jul 2025484 AMAQI
30°C28/33°C
15th Jul 2025475 AMAQI
15th Jul 2025476 AMAQI
15th Jul 2025467 AMAQI
15th Jul 2025368 AMAQI
15th Jul 2025329 AMAQI
15th Jul 20254110 AMAQI
15th Jul 20253711 AMAQI
15th Jul 20254112 PMAQI
15th Jul 2025361 PMAQI
15th Jul 2025342 PMAQI
15th Jul 2025363 PMAQI
15th Jul 2025374 PMAQI
15th Jul 2025395 PMAQI
15th Jul 2025396 PMAQI
15th Jul 2025447 PMAQI
15th Jul 2025468 PMAQI
15th Jul 2025469 PMAQI
15th Jul 20254510 PMAQI
15th Jul 20254511 PMAQI
16th Jul 20254412 AMAQI
16th Jul 2025461 AMAQI
16th Jul 2025462 AMAQI
16th Jul 2025463 AMAQI
16th Jul 2025454 AMAQI
29°C28/30°C
16th Jul 2025465 AMAQI
16th Jul 2025446 AMAQI
16th Jul 2025447 AMAQI
16th Jul 2025488 AMAQI
16th Jul 2025449 AMAQI
16th Jul 20253010 AMAQI
16th Jul 20252811 AMAQI
16th Jul 20253412 PMAQI
16th Jul 2025381 PMAQI
16th Jul 2025402 PMAQI
16th Jul 2025423 PMAQI
16th Jul 2025454 PMAQI
16th Jul 2025455 PMAQI
16th Jul 2025476 PMAQI
16th Jul 2025467 PMAQI
16th Jul 2025458 PMAQI
16th Jul 2025459 PMAQI
16th Jul 20254610 PMAQI
16th Jul 20254511 PMAQI
17th Jul 20254512 AMAQI
17th Jul 2025461 AMAQI
17th Jul 2025462 AMAQI
17th Jul 2025463 AMAQI
17th Jul 2025464 AMAQI
30°C27/34°C
17th Jul 2025455 AMAQI
17th Jul 2025446 AMAQI
17th Jul 2025447 AMAQI
17th Jul 2025508 AMAQI
17th Jul 2025479 AMAQI
17th Jul 20255110 AMAQI
17th Jul 20254411 AMAQI
17th Jul 20254912 PMAQI
17th Jul 2025501 PMAQI
17th Jul 2025442 PMAQI
17th Jul 2025413 PMAQI
17th Jul 2025424 PMAQI
17th Jul 2025495 PMAQI
17th Jul 2025476 PMAQI
17th Jul 2025467 PMAQI
17th Jul 2025468 PMAQI
17th Jul 2025469 PMAQI
17th Jul 20254610 PMAQI
17th Jul 20254511 PMAQI
18th Jul 20254212 AMAQI
18th Jul 2025461 AMAQI
18th Jul 2025462 AMAQI
18th Jul 2025463 AMAQI
18th Jul 2025464 AMAQI
31°C28/34°C
18th Jul 2025465 AMAQI
18th Jul 2025466 AMAQI
18th Jul 2025467 AMAQI
18th Jul 2025378 AMAQI
18th Jul 2025399 AMAQI
18th Jul 20254310 AMAQI
18th Jul 20255411 AMAQI
18th Jul 20255012 PMAQI
18th Jul 2025441 PMAQI
18th Jul 2025462 PMAQI
18th Jul 2025523 PMAQI
18th Jul 2025544 PMAQI
18th Jul 2025535 PMAQI
18th Jul 2025526 PMAQI
18th Jul 2025487 PMAQI
18th Jul 2025478 PMAQI
18th Jul 2025479 PMAQI
18th Jul 20254510 PMAQI
18th Jul 20254811 PMAQI
19th Jul 20254712 AMAQI
19th Jul 2025451 AMAQI
19th Jul 2025442 AMAQI
19th Jul 2025443 AMAQI
19th Jul 2025464 AMAQI
30°C27/32°C
19th Jul 2025465 AMAQI
19th Jul 2025456 AMAQI
19th Jul 2025467 AMAQI
19th Jul 2025608 AMAQI
19th Jul 2025629 AMAQI
19th Jul 20256310 AMAQI
19th Jul 20256411 AMAQI
19th Jul 20257412 PMAQI
19th Jul 2025771 PMAQI
19th Jul 2025712 PMAQI
19th Jul 2025603 PMAQI
19th Jul 2025484 PMAQI
19th Jul 2025405 PMAQI
19th Jul 2025396 PMAQI
19th Jul 2025507 PMAQI
19th Jul 2025418 PMAQI
19th Jul 2025469 PMAQI
19th Jul 20254510 PMAQI
19th Jul 20254411 PMAQI
20th Jul 20254412 AMAQI
20th Jul 2025471 AMAQI
20th Jul 2025462 AMAQI
20th Jul 2025483 AMAQI
20th Jul 2025524 AMAQI
29°C27/31°C
20th Jul 2025525 AMAQI
20th Jul 2025526 AMAQI
20th Jul 2025527 AMAQI
20th Jul 2025438 AMAQI
20th Jul 2025369 AMAQI
20th Jul 20254510 AMAQI
20th Jul 20254911 AMAQI
20th Jul 20256012 PMAQI
20th Jul 2025491 PMAQI
20th Jul 2025472 PMAQI
20th Jul 2025343 PMAQI
20th Jul 2025304 PMAQI
20th Jul 2025245 PMAQI
20th Jul 2025236 PMAQI
20th Jul 2025287 PMAQI
20th Jul 2025398 PMAQI
20th Jul 2025389 PMAQI
20th Jul 20253310 PMAQI
20th Jul 20253311 PMAQI
21st Jul 20253812 AMAQI
21st Jul 2025501 AMAQI
21st Jul 2025502 AMAQI
21st Jul 2025503 AMAQI
21st Jul 2025504 AMAQI
26°C25/28°C
21st Jul 2025515 AMAQI
21st Jul 2025526 AMAQI
21st Jul 2025507 AMAQI
21st Jul 2025428 AMAQI
21st Jul 2025229 AMAQI
21st Jul 20252710 AMAQI
21st Jul 20253411 AMAQI
21st Jul 20254612 PMAQI
21st Jul 2025381 PMAQI
21st Jul 2025292 PMAQI
21st Jul 2025323 PMAQI
21st Jul 2025274 PMAQI
21st Jul 2025225 PMAQI
21st Jul 2025226 PMAQI
21st Jul 2025297 PMAQI
21st Jul 2025398 PMAQI
21st Jul 2025499 PMAQI
21st Jul 20255110 PMAQI
21st Jul 20254711 PMAQI
22nd Jul 20254412 AMAQI
22nd Jul 2025481 AMAQI
22nd Jul 2025482 AMAQI
22nd Jul 2025473 AMAQI
22nd Jul 2025444 AMAQI
26°C25/27°C
22nd Jul 2025445 AMAQI
22nd Jul 2025446 AMAQI
22nd Jul 2025457 AMAQI
22nd Jul 2025348 AMAQI
22nd Jul 2025299 AMAQI
22nd Jul 20252810 AMAQI
22nd Jul 20253311 AMAQI
22nd Jul 20254112 PMAQI
22nd Jul 2025371 PMAQI
22nd Jul 2025382 PMAQI
22nd Jul 2025343 PMAQI
22nd Jul 2025294 PMAQI
22nd Jul 2025335 PMAQI
22nd Jul 2025336 PMAQI
22nd Jul 2025507 PMAQI
22nd Jul 2025458 PMAQI
22nd Jul 2025489 PMAQI
22nd Jul 20254610 PMAQI
22nd Jul 20254611 PMAQI
23rd Jul 20254812 AMAQI
23rd Jul 2025461 AMAQI
23rd Jul 2025462 AMAQI
23rd Jul 2025443 AMAQI
23rd Jul 2025424 AMAQI
28°C25/31°C
23rd Jul 2025425 AMAQI
23rd Jul 2025436 AMAQI
23rd Jul 2025437 AMAQI
23rd Jul 2025548 AMAQI
23rd Jul 2025589 AMAQI
23rd Jul 20256610 AMAQI
23rd Jul 20257611 AMAQI
23rd Jul 20257612 PMAQI
23rd Jul 2025701 PMAQI
23rd Jul 2025782 PMAQI
23rd Jul 2025783 PMAQI
23rd Jul 2025734 PMAQI
23rd Jul 2025745 PMAQI
23rd Jul 2025736 PMAQI
23rd Jul 2025617 PMAQI
23rd Jul 2025528 PMAQI
23rd Jul 2025529 PMAQI
23rd Jul 20255510 PMAQI
23rd Jul 20255011 PMAQI
24th Jul 20255012 AMAQI
24th Jul 2025441 AMAQI
24th Jul 2025442 AMAQI
24th Jul 2025473 AMAQI
24th Jul 2025534 AMAQI
30°C27/32°C
24th Jul 2025535 AMAQI
24th Jul 2025536 AMAQI
24th Jul 2025537 AMAQI
24th Jul 2025638 AMAQI
24th Jul 2025649 AMAQI
24th Jul 20256410 AMAQI
24th Jul 20255811 AMAQI
24th Jul 20255512 PMAQI
24th Jul 2025561 PMAQI
24th Jul 2025562 PMAQI
24th Jul 2025643 PMAQI
24th Jul 2025644 PMAQI
24th Jul 2025725 PMAQI
24th Jul 2025616 PMAQI
24th Jul 2025597 PMAQI
24th Jul 2025528 PMAQI
24th Jul 2025469 PMAQI
24th Jul 20254610 PMAQI
24th Jul 20254011 PMAQI
25th Jul 20253912 AMAQI
25th Jul 2025501 AMAQI
25th Jul 2025512 AMAQI
25th Jul 2025513 AMAQI
25th Jul 2025524 AMAQI
30°C27/34°C
25th Jul 2025535 AMAQI
25th Jul 2025536 AMAQI
25th Jul 2025537 AMAQI
25th Jul 2025388 AMAQI
25th Jul 2025299 AMAQI
25th Jul 20253110 AMAQI
25th Jul 20252611 AMAQI
25th Jul 20252612 PMAQI
25th Jul 2025331 PMAQI
25th Jul 2025362 PMAQI
25th Jul 2025403 PMAQI
25th Jul 2025434 PMAQI
25th Jul 2025365 PMAQI
25th Jul 2025306 PMAQI
25th Jul 2025347 PMAQI
25th Jul 2025468 PMAQI
25th Jul 2025439 PMAQI
25th Jul 20253810 PMAQI
25th Jul 20253911 PMAQI
26th Jul 20254212 AMAQI
26th Jul 2025501 AMAQI
26th Jul 2025512 AMAQI
26th Jul 2025503 AMAQI
26th Jul 2025484 AMAQI
29°C27/32°C
26th Jul 2025475 AMAQI
26th Jul 2025476 AMAQI
26th Jul 2025477 AMAQI
26th Jul 2025288 AMAQI
26th Jul 2025269 AMAQI
26th Jul 20252210 AMAQI
26th Jul 20252511 AMAQI
26th Jul 20252312 PMAQI
26th Jul 2025241 PMAQI
26th Jul 2025262 PMAQI
26th Jul 2025283 PMAQI
26th Jul 2025334 PMAQI
26th Jul 2025325 PMAQI
26th Jul 2025306 PMAQI
26th Jul 2025407 PMAQI
26th Jul 2025478 PMAQI
26th Jul 2025489 PMAQI
26th Jul 20255210 PMAQI
26th Jul 20255111 PMAQI
27th Jul 20254912 AMAQI
27th Jul 2025481 AMAQI
27th Jul 2025492 AMAQI
27th Jul 2025463 AMAQI
27th Jul 2025424 AMAQI
27°C25/27°C
27th Jul 2025425 AMAQI
27th Jul 2025426 AMAQI
27th Jul 2025447 AMAQI
27th Jul 2025388 AMAQI
27th Jul 2025359 AMAQI
27th Jul 20253510 AMAQI
27th Jul 20254411 AMAQI
27th Jul 20253912 PMAQI
27th Jul 2025351 PMAQI
27th Jul 2025412 PMAQI
27th Jul 2025383 PMAQI
27th Jul 2025404 PMAQI
27th Jul 2025425 PMAQI
27th Jul 2025466 PMAQI
27th Jul 2025367 PMAQI
27th Jul 2025458 PMAQI
27th Jul 2025449 PMAQI
27th Jul 20254010 PMAQI
27th Jul 20253911 PMAQI
28th Jul 20254612 AMAQI
28th Jul 2025461 AMAQI
28th Jul 2025462 AMAQI
28th Jul 2025453 AMAQI
28th Jul 2025444 AMAQI
29°C27/31°C
28th Jul 2025445 AMAQI
28th Jul 2025446 AMAQI
28th Jul 2025447 AMAQI
28th Jul 2025248 AMAQI
28th Jul 2025209 AMAQI
28th Jul 20252310 AMAQI
28th Jul 20251811 AMAQI
28th Jul 20252212 PMAQI
28th Jul 2025201 PMAQI
28th Jul 2025182 PMAQI
28th Jul 2025173 PMAQI
28th Jul 2025184 PMAQI
28th Jul 2025275 PMAQI
28th Jul 2025216 PMAQI
28th Jul 2025247 PMAQI
28th Jul 2025318 PMAQI
28th Jul 2025319 PMAQI
28th Jul 20253210 PMAQI
28th Jul 20252911 PMAQI
29th Jul 20253312 AMAQI
29th Jul 2025441 AMAQI
29th Jul 2025452 AMAQI
29th Jul 2025443 AMAQI
29th Jul 2025414 AMAQI
27°C25/27°C
29th Jul 2025405 AMAQI
29th Jul 2025406 AMAQI
29th Jul 2025407 AMAQI
29th Jul 2025238 AMAQI
29th Jul 2025199 AMAQI
29th Jul 20251810 AMAQI
29th Jul 20251611 AMAQI
29th Jul 20251812 PMAQI
29th Jul 2025221 PMAQI
29th Jul 2025222 PMAQI
29th Jul 2025263 PMAQI
29th Jul 2025364 PMAQI
29th Jul 2025365 PMAQI
29th Jul 2025326 PMAQI
29th Jul 2025367 PMAQI
29th Jul 2025378 PMAQI
29th Jul 2025399 PMAQI
29th Jul 20253710 PMAQI
29th Jul 20253711 PMAQI
30th Jul 20253612 AMAQI
30th Jul 2025421 AMAQI
30th Jul 2025422 AMAQI
30th Jul 2025403 AMAQI
30th Jul 2025374 AMAQI
26°C26/28°C
30th Jul 2025375 AMAQI
30th Jul 2025376 AMAQI
30th Jul 2025377 AMAQI
30th Jul 2025248 AMAQI
30th Jul 2025249 AMAQI
30th Jul 20253510 AMAQI
30th Jul 20253911 AMAQI
30th Jul 20254512 PMAQI
30th Jul 2025541 PMAQI
30th Jul 2025532 PMAQI
30th Jul 2025493 PMAQI
30th Jul 2025544 PMAQI
30th Jul 2025515 PMAQI
30th Jul 2025506 PMAQI
30th Jul 2025507 PMAQI
30th Jul 2025428 PMAQI
30th Jul 2025489 PMAQI
30th Jul 20254810 PMAQI
30th Jul 20254911 PMAQI
31st Jul 20254612 AMAQI
31st Jul 2025381 AMAQI
31st Jul 2025392 AMAQI
31st Jul 2025383 AMAQI
31st Jul 2025384 AMAQI
29°C26/32°C
31st Jul 2025385 AMAQI
31st Jul 2025386 AMAQI
31st Jul 2025387 AMAQI
31st Jul 2025388 AMAQI
31st Jul 2025389 AMAQI
31st Jul 20253010 AMAQI
31st Jul 20252911 AMAQI
31st Jul 20253812 PMAQI
31st Jul 2025381 PMAQI
31st Jul 2025372 PMAQI
31st Jul 2025343 PMAQI
31st Jul 2025304 PMAQI
31st Jul 2025235 PMAQI
31st Jul 2025246 PMAQI
31st Jul 2025337 PMAQI
31st Jul 2025468 PMAQI
31st Jul 2025479 PMAQI
31st Jul 20254810 PMAQI
31st Jul 20255011 PMAQI
1st Aug 20254612 AMAQI
1st Aug 2025481 AMAQI
1st Aug 2025482 AMAQI
1st Aug 2025393 AMAQI
1st Aug 2025404 AMAQI
29°C27/33°C
1st Aug 2025395 AMAQI
1st Aug 2025456 AMAQI
1st Aug 2025487 AMAQI
1st Aug 2025468 AMAQI
1st Aug 2025539 AMAQI
1st Aug 20255010 AMAQI
1st Aug 20255711 AMAQI
1st Aug 20255312 PMAQI
1st Aug 2025421 PMAQI
1st Aug 2025422 PMAQI
1st Aug 2025383 PMAQI
1st Aug 2025394 PMAQI
1st Aug 2025365 PMAQI
1st Aug 2025296 PMAQI
1st Aug 2025367 PMAQI
1st Aug 2025368 PMAQI
1st Aug 2025399 PMAQI
1st Aug 20254410 PMAQI
1st Aug 20254011 PMAQI
2nd Aug 20254212 AMAQI
2nd Aug 2025461 AMAQI
2nd Aug 2025462 AMAQI
2nd Aug 2025483 AMAQI
2nd Aug 2025474 AMAQI
30°C27/33°C
2nd Aug 2025495 AMAQI
2nd Aug 2025486 AMAQI
2nd Aug 2025487 AMAQI
2nd Aug 2025388 AMAQI
2nd Aug 2025369 AMAQI
2nd Aug 20253910 AMAQI
2nd Aug 20253811 AMAQI
2nd Aug 20253812 PMAQI
2nd Aug 2025461 PMAQI
2nd Aug 2025462 PMAQI
2nd Aug 2025453 PMAQI
2nd Aug 2025404 PMAQI
2nd Aug 2025285 PMAQI
2nd Aug 2025416 PMAQI
2nd Aug 2025357 PMAQI
2nd Aug 2025408 PMAQI
2nd Aug 2025389 PMAQI
2nd Aug 20254110 PMAQI
2nd Aug 20254311 PMAQI
3rd Aug 20254812 AMAQI
3rd Aug 2025471 AMAQI
3rd Aug 2025472 AMAQI
3rd Aug 2025483 AMAQI
3rd Aug 2025474 AMAQI
30°C27/33°C
3rd Aug 2025485 AMAQI
3rd Aug 2025486 AMAQI
3rd Aug 2025487 AMAQI
3rd Aug 2025368 AMAQI
3rd Aug 2025389 AMAQI
3rd Aug 20253210 AMAQI
3rd Aug 20253611 AMAQI
3rd Aug 20254412 PMAQI
3rd Aug 2025381 PMAQI
3rd Aug 2025322 PMAQI
3rd Aug 2025283 PMAQI
3rd Aug 2025414 PMAQI
3rd Aug 2025315 PMAQI
3rd Aug 2025396 PMAQI
3rd Aug 2025427 PMAQI
3rd Aug 2025478 PMAQI
3rd Aug 2025409 PMAQI
3rd Aug 20254010 PMAQI
3rd Aug 20254711 PMAQI
4th Aug 20254712 AMAQI
4th Aug 2025501 AMAQI
4th Aug 2025502 AMAQI
4th Aug 2025503 AMAQI
4th Aug 2025534 AMAQI
28°C26/31°C
4th Aug 2025515 AMAQI
4th Aug 2025496 AMAQI
4th Aug 2025507 AMAQI
4th Aug 2025248 AMAQI
4th Aug 2025249 AMAQI
4th Aug 20252510 AMAQI
4th Aug 20253011 AMAQI
4th Aug 20252212 PMAQI
4th Aug 2025321 PMAQI
4th Aug 2025292 PMAQI
4th Aug 2025263 PMAQI
4th Aug 2025364 PMAQI
4th Aug 2025315 PMAQI
4th Aug 2025286 PMAQI
4th Aug 2025337 PMAQI
4th Aug 2025388 PMAQI
4th Aug 2025389 PMAQI
4th Aug 20254210 PMAQI
4th Aug 20254011 PMAQI
5th Aug 20254412 AMAQI
5th Aug 2025481 AMAQI
5th Aug 2025522 AMAQI
5th Aug 2025493 AMAQI
5th Aug 2025474 AMAQI
26°C25/26°C
5th Aug 2025455 AMAQI
5 AM5th Aug 2025486 AMAQI
5th Aug 2025457 AMAQI
5th Aug 2025348 AMAQI
5th Aug 2025369 AMAQI
5th Aug 20254610 AMAQI
5th Aug 20254811 AMAQI
11 AM5th Aug 20254912 PMAQI
5th Aug 2025501 PMAQI
5th Aug 2025462 PMAQI
5th Aug 2025483 PMAQI
5th Aug 2025494 PMAQI
5th Aug 2025535 PMAQI
5th Aug 2025456 PMAQI
6 PM5th Aug 2025507 PMAQI
5th Aug 2025518 PMAQI
5th Aug 2025489 PMAQI
5th Aug 20254810 PMAQI
11 PM
4 AM
--°C/°C
Day time
Avg. Highest Time
5 AM - 7 AM
44AQI
3 hours / Day
90 hours / Month
Avg. Lowest Time
9 AM - 10 AM
37AQI
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. 44), while the lowest AQI was between 9 AM to 10 AM (Avg. 37).
Night time
Avg. Highest Time
12 AM - 4 AM
44AQI
5 hours / Day
150 hours / Month
Avg. Lowest Time
7 PM - 11 PM
43AQI
5 hours / Day
150 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 4 AM (Avg. 44), while the lowest AQI was between 7 PM to 11 PM (Avg. 43).
2025 Days Vs Air Quality
Huatan, Changhua, Taiwan
2025
40%
86
60%
129
0.4%
1
Total number of days with different AQI categories in last 217 days in 2025 (148 days remaining)
Good
86 DaysModerate
129 DaysPoor
1 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 40%
Health Risk Level:
Significant
In 2025, 40% of 217 days were within WHO’s safe air quality limits, and 60% exceeded them. The risk of health issues is Significant, especially for those with existing respiratory or heart conditions.
Annual Air Quality Insights
Huatan, Changhua, 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.
1st January 2025
84AQI
84AQI
2nd January 2025
64AQI
64AQI
3rd January 2025
65AQI
65AQI
4th January 2025
62AQI
62AQI
5th January 2025
61AQI
61AQI
6th January 2025
75AQI
75AQI
7th January 2025
75AQI
75AQI
8th January 2025
62AQI
62AQI
9th January 2025
71AQI
71AQI
10th January 2025
57AQI
57AQI
11th January 2025
54AQI
54AQI
12th January 2025
54AQI
54AQI
13th January 2025
62AQI
62AQI
14th January 2025
83AQI
83AQI
15th January 2025
77AQI
77AQI
16th January 2025
61AQI
61AQI
17th January 2025
61AQI
61AQI
18th January 2025
64AQI
64AQI
19th January 2025
61AQI
61AQI
20th January 2025
71AQI
71AQI
21st January 2025
85AQI
85AQI
22nd January 2025
96AQI
96AQI
23rd January 2025
75AQI
75AQI
24th January 2025
74AQI
74AQI
25th January 2025
77AQI
77AQI
26th January 2025
64AQI
64AQI
27th January 2025
58AQI
58AQI
28th January 2025
59AQI
59AQI
29th January 2025
59AQI
59AQI
30th January 2025
80AQI
80AQI
31st January 2025
77AQI
77AQI
1st February 2025
64AQI
64AQI
2nd February 2025
53AQI
53AQI
3rd February 2025
52AQI
52AQI
4th February 2025
73AQI
73AQI
5th February 2025
66AQI
66AQI
6th February 2025
80AQI
80AQI
7th February 2025
58AQI
58AQI
8th February 2025
63AQI
63AQI
9th February 2025
48AQI
48AQI
10th February 2025
55AQI
55AQI
11th February 2025
65AQI
65AQI
12th February 2025
64AQI
64AQI
13th February 2025
52AQI
52AQI
14th February 2025
59AQI
59AQI
15th February 2025
56AQI
56AQI
16th February 2025
78AQI
78AQI
17th February 2025
95AQI
95AQI
18th February 2025
67AQI
67AQI
19th February 2025
71AQI
71AQI
20th February 2025
68AQI
68AQI
21st February 2025
49AQI
49AQI
22nd February 2025
54AQI
54AQI
23rd February 2025
41AQI
41AQI
24th February 2025
60AQI
60AQI
25th February 2025
80AQI
80AQI
26th February 2025
74AQI
74AQI
27th February 2025
119AQI
119AQI
28th February 2025
82AQI
82AQI
1st March 2025
95AQI
95AQI
2nd March 2025
80AQI
80AQI
3rd March 2025
72AQI
72AQI
4th March 2025
53AQI
53AQI
5th March 2025
47AQI
47AQI
6th March 2025
40AQI
40AQI
7th March 2025
56AQI
56AQI
8th March 2025
54AQI
54AQI
9th March 2025
58AQI
58AQI
10th March 2025
80AQI
80AQI
11th March 2025
94AQI
94AQI
12th March 2025
79AQI
79AQI
13th March 2025
68AQI
68AQI
14th March 2025
74AQI
74AQI
15th March 2025
61AQI
61AQI
16th March 2025
51AQI
51AQI
17th March 2025
72AQI
72AQI
18th March 2025
58AQI
58AQI
19th March 2025
72AQI
72AQI
20th March 2025
68AQI
68AQI
21st March 2025
70AQI
70AQI
22nd March 2025
79AQI
79AQI
23rd March 2025
81AQI
81AQI
24th March 2025
72AQI
72AQI
25th March 2025
67AQI
67AQI
26th March 2025
65AQI
65AQI
27th March 2025
61AQI
61AQI
28th March 2025
68AQI
68AQI
29th March 2025
44AQI
44AQI
30th March 2025
39AQI
39AQI
31st March 2025
34AQI
34AQI
1st April 2025
32AQI
32AQI
2nd April 2025
52AQI
52AQI
3rd April 2025
68AQI
68AQI
4th April 2025
83AQI
83AQI
5th April 2025
70AQI
70AQI
6th April 2025
64AQI
64AQI
7th April 2025
77AQI
77AQI
8th April 2025
78AQI
78AQI
9th April 2025
68AQI
68AQI
10th April 2025
69AQI
69AQI
11th April 2025
72AQI
72AQI
12th April 2025
55AQI
55AQI
13th April 2025
83AQI
83AQI
14th April 2025
74AQI
74AQI
15th April 2025
83AQI
83AQI
16th April 2025
79AQI
79AQI
17th April 2025
76AQI
76AQI
18th April 2025
66AQI
66AQI
19th April 2025
62AQI
62AQI
20th April 2025
61AQI
61AQI
21st April 2025
62AQI
62AQI
22nd April 2025
56AQI
56AQI
23rd April 2025
60AQI
60AQI
24th April 2025
61AQI
61AQI
25th April 2025
50AQI
50AQI
26th April 2025
62AQI
62AQI
27th April 2025
60AQI
60AQI
28th April 2025
60AQI
60AQI
29th April 2025
69AQI
69AQI
30th April 2025
69AQI
69AQI
1st May 2025
64AQI
64AQI
2nd May 2025
74AQI
74AQI
3rd May 2025
68AQI
68AQI
4th May 2025
74AQI
74AQI
5th May 2025
68AQI
68AQI
6th May 2025
65AQI
65AQI
7th May 2025
52AQI
52AQI
8th May 2025
62AQI
62AQI
9th May 2025
46AQI
46AQI
10th May 2025
36AQI
36AQI
11th May 2025
37AQI
37AQI
12th May 2025
52AQI
52AQI
13th May 2025
58AQI
58AQI
14th May 2025
57AQI
57AQI
15th May 2025
45AQI
45AQI
16th May 2025
54AQI
54AQI
17th May 2025
45AQI
45AQI
18th May 2025
39AQI
39AQI
19th May 2025
37AQI
37AQI
20th May 2025
34AQI
34AQI
21st May 2025
32AQI
32AQI
22nd May 2025
44AQI
44AQI
23rd May 2025
40AQI
40AQI
24th May 2025
41AQI
41AQI
25th May 2025
52AQI
52AQI
26th May 2025
49AQI
49AQI
27th May 2025
50AQI
50AQI
28th May 2025
57AQI
57AQI
29th May 2025
37AQI
37AQI
30th May 2025
52AQI
52AQI
31st May 2025
58AQI
58AQI
1st June 2025
53AQI
53AQI
2nd June 2025
37AQI
37AQI
3rd June 2025
33AQI
33AQI
4th June 2025
42AQI
42AQI
5th June 2025
34AQI
34AQI
6th June 2025
42AQI
42AQI
7th June 2025
31AQI
31AQI
8th June 2025
33AQI
33AQI
9th June 2025
30AQI
30AQI
10th June 2025
32AQI
32AQI
11th June 2025
45AQI
45AQI
12th June 2025
51AQI
51AQI
13th June 2025
33AQI
33AQI
14th June 2025
31AQI
31AQI
15th June 2025
35AQI
35AQI
16th June 2025
32AQI
32AQI
17th June 2025
31AQI
31AQI
18th June 2025
35AQI
35AQI
19th June 2025
33AQI
33AQI
20th June 2025
35AQI
35AQI
21st June 2025
30AQI
30AQI
22nd June 2025
22AQI
22AQI
23rd June 2025
23AQI
23AQI
24th June 2025
26AQI
26AQI
25th June 2025
28AQI
28AQI
26th June 2025
26AQI
26AQI
27th June 2025
25AQI
25AQI
28th June 2025
29AQI
29AQI
29th June 2025
32AQI
32AQI
30th June 2025
35AQI
35AQI
1st July 2025
38AQI
38AQI
2nd July 2025
43AQI
43AQI
3rd July 2025
46AQI
46AQI
4th July 2025
49AQI
49AQI
5th July 2025
39AQI
39AQI
6th July 2025
39AQI
39AQI
7th July 2025
35AQI
35AQI
8th July 2025
39AQI
39AQI
9th July 2025
38AQI
38AQI
10th July 2025
35AQI
35AQI
11th July 2025
37AQI
37AQI
12th July 2025
41AQI
41AQI
13th July 2025
44AQI
44AQI
14th July 2025
47AQI
47AQI
15th July 2025
43AQI
43AQI
16th July 2025
43AQI
43AQI
17th July 2025
46AQI
46AQI
18th July 2025
46AQI
46AQI
19th July 2025
50AQI
50AQI
20th July 2025
41AQI
41AQI
21st July 2025
40AQI
40AQI
22nd July 2025
41AQI
41AQI
23rd July 2025
57AQI
57AQI
24th July 2025
54AQI
54AQI
25th July 2025
41AQI
41AQI
26th July 2025
40AQI
40AQI
27th July 2025
42AQI
42AQI
28th July 2025
32AQI
32AQI
29th July 2025
34AQI
34AQI
30th July 2025
43AQI
43AQI
31st July 2025
38AQI
38AQI
1st August 2025
43AQI
43AQI
2nd August 2025
42AQI
42AQI
3rd August 2025
42AQI
42AQI
4th August 2025
42AQI
42AQI
69AQI
66AQI
65AQI
66AQI
51AQI
33AQI
42AQI
42AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202556AQI
31
3
24
1
5
26
2
28
15
16
28
2
29
2
4
86
129
1
Highest AQI recorded in
January69AQI
Lowest AQI recorded in
June33AQI
202461AQI
2
19
10
2
21
6
2
20
9
1
26
3
3
28
29
31
23
8
14
16
14
17
18
12
8
23
147
190
28
Highest AQI recorded in
March87AQI
Lowest AQI recorded in
July31AQI
202362AQI
5
21
5
2
21
5
4
20
7
25
5
7
22
2
21
9
26
5
30
1
12
18
11
18
2
4
24
1
10
17
4
132
201
31
Highest AQI recorded in
April84AQI
Lowest AQI recorded in
July36AQI
202258AQI
7
23
10
10
1
4
16
11
6
12
13
18
25
5
18
3
1
7
21
16
13
2
10
18
2
21
10
138
149
16
Highest AQI recorded in
March91AQI
Lowest AQI recorded in
July36AQI
202163AQI
4
19
6
1
14
12
1
1
18
12
1
29
21
10
29
1
24
7
26
5
10
18
2
10
18
3
7
22
1
8
22
1
142
183
37
1
Highest AQI recorded in
February99AQI
Lowest AQI recorded in
June32AQI
202053AQI
2
8
3
2
16
3
14
4
27
3
27
4
28
3
9
19
2
1
30
5
22
3
15
13
3
130
122
14
Highest AQI recorded in
March78AQI
Lowest AQI recorded in
July35AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2021(Avg.)
63AQILeast Polluted Year Recorded
2020(Avg.)
53AQIHuatan's annual 2025 AQI (56) shows an average percentage change of -5.9% (improved AQI) compared to previous years: 2020 (53), 2021 (63), 2022 (58), 2023 (62), 2024 (61).
