Ershui, 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
Ershui, Changhua, Taiwan
2022
2023
2024
2025
2026
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
31st Aug 2024
70AQILowest AQI recorded on
4th Aug 2023
19AQISame Day Analysis (4th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 1st highest AQI at 44 of Good air quality on the same day.
Day & Night AQI Trend: 4th Aug - 5th Aug 2026
Ershui, Changhua, Taiwan
AQI
Day
Night
.
5 AM4th Aug 2026
6 PM
4 AM5th Aug 2026
Day time
Avg. Highest Time
2PM4th Aug
55AQI
Avg. Lowest Time
5AM4th Aug
38AQI
Night time
Avg. Highest Time
8PM4th Aug
38AQI
Avg. Lowest Time
1AM5th Aug
33AQI
In the last 24 hours,
Ershui's AQI reached its highest point of 55 at 2 PM during the Day, while the lowest point, 33, was recorded at 1 AM during the Night between 4th Aug and 5th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Ershui, Changhua, Taiwan
JulAug
07th - 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
7th Jul 2026245 AMAQI
7th Jul 2026266 AMAQI
7th Jul 2026287 AMAQI
7th Jul 2026268 AMAQI
7th Jul 2026269 AMAQI
7th Jul 20262410 AMAQI
7th Jul 20262011 AMAQI
7th Jul 20262012 PMAQI
7th Jul 2026221 PMAQI
7th Jul 2026282 PMAQI
7th Jul 2026243 PMAQI
7th Jul 2026254 PMAQI
7th Jul 2026275 PMAQI
7th Jul 2026286 PMAQI
7th Jul 2026277 PMAQI
7th Jul 2026268 PMAQI
7th Jul 2026269 PMAQI
7th Jul 20262810 PMAQI
7th Jul 20263011 PMAQI
8th Jul 20262812 AMAQI
8th Jul 2026101 AMAQI
8th Jul 2026182 AMAQI
8th Jul 2026153 AMAQI
8th Jul 2026284 AMAQI
28°C22/34°C
8th Jul 2026295 AMAQI
8th Jul 2026286 AMAQI
8th Jul 2026287 AMAQI
8th Jul 2026268 AMAQI
8th Jul 2026269 AMAQI
8th Jul 20262410 AMAQI
8th Jul 20262511 AMAQI
8th Jul 20262212 PMAQI
8th Jul 2026261 PMAQI
8th Jul 2026282 PMAQI
8th Jul 2026283 PMAQI
8th Jul 2026244 PMAQI
8th Jul 2026265 PMAQI
8th Jul 2026206 PMAQI
8th Jul 2026227 PMAQI
8th Jul 2026228 PMAQI
8th Jul 2026269 PMAQI
8th Jul 20262810 PMAQI
8th Jul 20263011 PMAQI
9th Jul 20263112 AMAQI
9th Jul 2026301 AMAQI
9th Jul 2026302 AMAQI
9th Jul 2026303 AMAQI
9th Jul 2026304 AMAQI
28°C23/34°C
9th Jul 2026265 AMAQI
9th Jul 2026306 AMAQI
9th Jul 2026287 AMAQI
9th Jul 2026488 AMAQI
9th Jul 2026559 AMAQI
9th Jul 20263110 AMAQI
9th Jul 20263611 AMAQI
9th Jul 20264612 PMAQI
9th Jul 2026441 PMAQI
9th Jul 2026552 PMAQI
9th Jul 2026383 PMAQI
9th Jul 2026254 PMAQI
9th Jul 2026255 PMAQI
9th Jul 2026296 PMAQI
9th Jul 2026317 PMAQI
9th Jul 2026408 PMAQI
9th Jul 2026659 PMAQI
9th Jul 20266010 PMAQI
9th Jul 20265511 PMAQI
10th Jul 20267212 AMAQI
10th Jul 2026621 AMAQI
10th Jul 2026362 AMAQI
10th Jul 2026523 AMAQI
10th Jul 2026334 AMAQI
28°C24/33°C
10th Jul 2026465 AMAQI
10th Jul 2026396 AMAQI
10th Jul 2026307 AMAQI
10th Jul 2026328 AMAQI
10th Jul 2026329 AMAQI
10th Jul 20263110 AMAQI
10th Jul 20262811 AMAQI
10th Jul 20262612 PMAQI
10th Jul 2026251 PMAQI
10th Jul 2026262 PMAQI
10th Jul 2026283 PMAQI
10th Jul 2026304 PMAQI
10th Jul 2026345 PMAQI
10th Jul 2026366 PMAQI
10th Jul 2026317 PMAQI
10th Jul 2026308 PMAQI
10th Jul 2026329 PMAQI
10th Jul 20263210 PMAQI
10th Jul 20263511 PMAQI
11th Jul 20263112 AMAQI
11th Jul 2026331 AMAQI
11th Jul 2026302 AMAQI
11th Jul 202693 AMAQI
11th Jul 202684 AMAQI
28°C24/33°C
11th Jul 202685 AMAQI
11th Jul 2026126 AMAQI
11th Jul 2026127 AMAQI
11th Jul 2026138 AMAQI
11th Jul 202689 AMAQI
11th Jul 2026810 AMAQI
11th Jul 20261411 AMAQI
11th Jul 2026812 PMAQI
11th Jul 2026191 PMAQI
11th Jul 2026212 PMAQI
11th Jul 2026143 PMAQI
11th Jul 2026144 PMAQI
11th Jul 2026125 PMAQI
11th Jul 202666 PMAQI
11th Jul 2026127 PMAQI
11th Jul 202688 PMAQI
11th Jul 2026219 PMAQI
11th Jul 20262110 PMAQI
11th Jul 20261211 PMAQI
12th Jul 20261212 AMAQI
12th Jul 2026291 AMAQI
12th Jul 2026302 AMAQI
12th Jul 2026283 AMAQI
12th Jul 2026304 AMAQI
25°C24/26°C
12th Jul 2026285 AMAQI
12th Jul 2026276 AMAQI
12th Jul 2026307 AMAQI
12th Jul 2026288 AMAQI
12th Jul 2026299 AMAQI
12th Jul 20262410 AMAQI
12th Jul 20262411 AMAQI
12th Jul 20262212 PMAQI
12th Jul 2026201 PMAQI
12th Jul 2026222 PMAQI
12th Jul 2026223 PMAQI
12th Jul 2026264 PMAQI
12th Jul 2026245 PMAQI
12th Jul 2026276 PMAQI
12th Jul 2026287 PMAQI
12th Jul 2026288 PMAQI
12th Jul 2026289 PMAQI
12th Jul 20262910 PMAQI
12th Jul 20263011 PMAQI
13th Jul 20263212 AMAQI
13th Jul 2026261 AMAQI
13th Jul 2026282 AMAQI
13th Jul 2026283 AMAQI
13th Jul 2026244 AMAQI
26°C22/33°C
13th Jul 2026225 AMAQI
13th Jul 2026286 AMAQI
13th Jul 2026307 AMAQI
13th Jul 2026298 AMAQI
13th Jul 2026289 AMAQI
13th Jul 20262510 AMAQI
13th Jul 20262611 AMAQI
13th Jul 20262312 PMAQI
13th Jul 2026221 PMAQI
13th Jul 2026222 PMAQI
13th Jul 2026233 PMAQI
13th Jul 2026324 PMAQI
13th Jul 2026285 PMAQI
13th Jul 2026286 PMAQI
13th Jul 2026277 PMAQI
13th Jul 2026268 PMAQI
13th Jul 2026299 PMAQI
13th Jul 20262910 PMAQI
13th Jul 20263011 PMAQI
14th Jul 20263112 AMAQI
14th Jul 2026311 AMAQI
14th Jul 2026202 AMAQI
14th Jul 2026263 AMAQI
14th Jul 2026254 AMAQI
27°C24/32°C
14th Jul 2026295 AMAQI
14th Jul 2026326 AMAQI
14th Jul 2026277 AMAQI
14th Jul 2026338 AMAQI
14th Jul 2026299 AMAQI
14th Jul 20262210 AMAQI
14th Jul 20261411 AMAQI
14th Jul 20262012 PMAQI
14th Jul 2026201 PMAQI
14th Jul 2026192 PMAQI
14th Jul 2026223 PMAQI
14th Jul 2026254 PMAQI
14th Jul 2026265 PMAQI
14th Jul 2026296 PMAQI
14th Jul 2026287 PMAQI
14th Jul 2026288 PMAQI
14th Jul 2026319 PMAQI
14th Jul 20263110 PMAQI
14th Jul 20263211 PMAQI
15th Jul 20263012 AMAQI
15th Jul 2026321 AMAQI
15th Jul 2026292 AMAQI
15th Jul 2026263 AMAQI
15th Jul 2026324 AMAQI
26°C23/32°C
15th Jul 2026245 AMAQI
15th Jul 2026316 AMAQI
15th Jul 2026327 AMAQI
15th Jul 2026308 AMAQI
15th Jul 2026299 AMAQI
15th Jul 20262210 AMAQI
15th Jul 20262111 AMAQI
15th Jul 20262112 PMAQI
15th Jul 2026181 PMAQI
15th Jul 2026142 PMAQI
15th Jul 2026143 PMAQI
15th Jul 2026244 PMAQI
15th Jul 2026245 PMAQI
15th Jul 2026226 PMAQI
15th Jul 2026247 PMAQI
15th Jul 2026248 PMAQI
15th Jul 2026269 PMAQI
15th Jul 20262410 PMAQI
15th Jul 20262211 PMAQI
16th Jul 20262512 AMAQI
16th Jul 2026301 AMAQI
16th Jul 2026292 AMAQI
16th Jul 2026283 AMAQI
16th Jul 2026274 AMAQI
28°C22/34°C
16th Jul 2026245 AMAQI
16th Jul 2026246 AMAQI
16th Jul 2026307 AMAQI
16th Jul 2026288 AMAQI
16th Jul 2026289 AMAQI
16th Jul 20262410 AMAQI
16th Jul 20262611 AMAQI
16th Jul 20262312 PMAQI
16th Jul 2026201 PMAQI
16th Jul 2026212 PMAQI
16th Jul 2026243 PMAQI
16th Jul 2026254 PMAQI
16th Jul 2026265 PMAQI
16th Jul 2026286 PMAQI
16th Jul 2026277 PMAQI
16th Jul 2026288 PMAQI
16th Jul 2026269 PMAQI
16th Jul 20262610 PMAQI
16th Jul 20262811 PMAQI
17th Jul 20262912 AMAQI
17th Jul 2026281 AMAQI
17th Jul 2026282 AMAQI
17th Jul 2026263 AMAQI
17th Jul 2026254 AMAQI
28°C22/34°C
17th Jul 2026285 AMAQI
17th Jul 2026306 AMAQI
17th Jul 2026277 AMAQI
17th Jul 2026258 AMAQI
17th Jul 2026299 AMAQI
17th Jul 20262410 AMAQI
17th Jul 20262811 AMAQI
17th Jul 20262212 PMAQI
17th Jul 2026241 PMAQI
17th Jul 2026222 PMAQI
17th Jul 2026253 PMAQI
17th Jul 2026254 PMAQI
17th Jul 2026255 PMAQI
17th Jul 2026256 PMAQI
17th Jul 2026257 PMAQI
17th Jul 2026258 PMAQI
17th Jul 2026279 PMAQI
17th Jul 20262510 PMAQI
17th Jul 20262711 PMAQI
18th Jul 20262712 AMAQI
18th Jul 2026251 AMAQI
18th Jul 2026252 AMAQI
18th Jul 2026253 AMAQI
18th Jul 2026274 AMAQI
28°C23/33°C
18th Jul 2026275 AMAQI
18th Jul 2026236 AMAQI
18th Jul 2026257 AMAQI
18th Jul 2026278 AMAQI
18th Jul 2026319 AMAQI
18th Jul 20262510 AMAQI
18th Jul 20262511 AMAQI
18th Jul 20262512 PMAQI
18th Jul 2026251 PMAQI
18th Jul 2026252 PMAQI
18th Jul 2026273 PMAQI
18th Jul 2026254 PMAQI
18th Jul 2026255 PMAQI
18th Jul 2026316 PMAQI
18th Jul 2026297 PMAQI
18th Jul 2026338 PMAQI
18th Jul 2026299 PMAQI
18th Jul 20262710 PMAQI
18th Jul 20262511 PMAQI
19th Jul 20262712 AMAQI
19th Jul 2026271 AMAQI
19th Jul 2026292 AMAQI
19th Jul 2026333 AMAQI
19th Jul 2026294 AMAQI
27°C23/33°C
19th Jul 2026315 AMAQI
19th Jul 2026296 AMAQI
19th Jul 2026277 AMAQI
19th Jul 2026318 AMAQI
19th Jul 2026389 AMAQI
19th Jul 20263610 AMAQI
19th Jul 20262511 AMAQI
19th Jul 20262512 PMAQI
19th Jul 2026271 PMAQI
19th Jul 2026292 PMAQI
19th Jul 2026273 PMAQI
19th Jul 2026234 PMAQI
19th Jul 2026275 PMAQI
19th Jul 2026276 PMAQI
19th Jul 2026257 PMAQI
19th Jul 2026258 PMAQI
19th Jul 2026259 PMAQI
19th Jul 20262710 PMAQI
19th Jul 20262911 PMAQI
20th Jul 20262712 AMAQI
20th Jul 2026251 AMAQI
20th Jul 2026272 AMAQI
20th Jul 2026293 AMAQI
20th Jul 2026254 AMAQI
27°C23/31°C
20th Jul 2026255 AMAQI
20th Jul 2026236 AMAQI
20th Jul 2026217 AMAQI
20th Jul 2026218 AMAQI
20th Jul 2026259 AMAQI
20th Jul 20262310 AMAQI
20th Jul 20263411 AMAQI
20th Jul 20262312 PMAQI
20th Jul 2026211 PMAQI
20th Jul 2026232 PMAQI
20th Jul 2026273 PMAQI
20th Jul 2026234 PMAQI
20th Jul 2026215 PMAQI
20th Jul 2026216 PMAQI
20th Jul 2026257 PMAQI
20th Jul 2026218 PMAQI
20th Jul 2026279 PMAQI
20th Jul 20262110 PMAQI
20th Jul 20262111 PMAQI
21st Jul 20262112 AMAQI
21st Jul 2026211 AMAQI
21st Jul 2026212 AMAQI
21st Jul 2026253 AMAQI
21st Jul 2026214 AMAQI
27°C22/33°C
21st Jul 2026215 AMAQI
21st Jul 2026216 AMAQI
21st Jul 2026217 AMAQI
21st Jul 2026218 AMAQI
21st Jul 2026239 AMAQI
21st Jul 20262310 AMAQI
21st Jul 20262512 PMAQI
21st Jul 2026271 PMAQI
21st Jul 2026312 PMAQI
21st Jul 2026333 PMAQI
21st Jul 2026334 PMAQI
21st Jul 2026405 PMAQI
21st Jul 2026726 PMAQI
21st Jul 2026297 PMAQI
21st Jul 2026388 PMAQI
21st Jul 2026349 PMAQI
21st Jul 20264010 PMAQI
21st Jul 20263111 PMAQI
22nd Jul 20262512 AMAQI
22nd Jul 2026251 AMAQI
22nd Jul 2026292 AMAQI
22nd Jul 2026293 AMAQI
22nd Jul 2026244 AMAQI
27°C22/33°C
22nd Jul 2026215 AMAQI
22nd Jul 2026336 AMAQI
22nd Jul 2026297 AMAQI
22nd Jul 2026218 AMAQI
22nd Jul 2026259 AMAQI
22nd Jul 20262410 AMAQI
22nd Jul 20264211 AMAQI
22nd Jul 20264412 PMAQI
22nd Jul 2026481 PMAQI
22nd Jul 2026402 PMAQI
22nd Jul 2026553 PMAQI
22nd Jul 2026534 PMAQI
22nd Jul 2026565 PMAQI
22nd Jul 2026516 PMAQI
22nd Jul 2026517 PMAQI
22nd Jul 2026448 PMAQI
22nd Jul 2026499 PMAQI
22nd Jul 20264410 PMAQI
22nd Jul 20265611 PMAQI
23rd Jul 20265112 AMAQI
23rd Jul 2026521 AMAQI
23rd Jul 2026502 AMAQI
23rd Jul 2026463 AMAQI
23rd Jul 2026444 AMAQI
28°C23/33°C
23rd Jul 2026485 AMAQI
23rd Jul 2026446 AMAQI
23rd Jul 2026507 AMAQI
23rd Jul 2026528 AMAQI
23rd Jul 2026429 AMAQI
23rd Jul 20264410 AMAQI
23rd Jul 20264911 AMAQI
23rd Jul 20264912 PMAQI
23rd Jul 2026481 PMAQI
23rd Jul 2026512 PMAQI
23rd Jul 2026523 PMAQI
23rd Jul 2026544 PMAQI
23rd Jul 2026535 PMAQI
23rd Jul 2026506 PMAQI
23rd Jul 2026567 PMAQI
23rd Jul 2026548 PMAQI
23rd Jul 2026579 PMAQI
23rd Jul 20265310 PMAQI
23rd Jul 20265511 PMAQI
24th Jul 20265612 AMAQI
24th Jul 2026571 AMAQI
24th Jul 2026532 AMAQI
24th Jul 2026483 AMAQI
24th Jul 2026534 AMAQI
27°C23/32°C
24th Jul 2026555 AMAQI
24th Jul 2026516 AMAQI
24th Jul 2026467 AMAQI
24th Jul 2026498 AMAQI
24th Jul 2026519 AMAQI
24th Jul 20265110 AMAQI
24th Jul 20265511 AMAQI
24th Jul 20267112 PMAQI
24th Jul 2026551 PMAQI
24th Jul 2026592 PMAQI
24th Jul 2026593 PMAQI
24th Jul 2026584 PMAQI
24th Jul 2026595 PMAQI
24th Jul 2026626 PMAQI
24th Jul 2026667 PMAQI
24th Jul 2026688 PMAQI
24th Jul 2026769 PMAQI
24th Jul 20266810 PMAQI
24th Jul 20267411 PMAQI
25th Jul 20267012 AMAQI
25th Jul 2026691 AMAQI
25th Jul 2026672 AMAQI
25th Jul 2026723 AMAQI
25th Jul 2026664 AMAQI
27°C22/33°C
25th Jul 2026645 AMAQI
25th Jul 2026606 AMAQI
25th Jul 2026607 AMAQI
25th Jul 2026568 AMAQI
25th Jul 2026609 AMAQI
25th Jul 20265710 AMAQI
25th Jul 20265511 AMAQI
25th Jul 20265412 PMAQI
25th Jul 2026541 PMAQI
25th Jul 2026522 PMAQI
25th Jul 2026553 PMAQI
25th Jul 2026554 PMAQI
25th Jul 2026505 PMAQI
25th Jul 2026426 PMAQI
25th Jul 2026387 PMAQI
25th Jul 2026388 PMAQI
25th Jul 2026409 PMAQI
25th Jul 20263610 PMAQI
25th Jul 20263811 PMAQI
26th Jul 20263812 AMAQI
26th Jul 2026381 AMAQI
26th Jul 2026332 AMAQI
26th Jul 2026363 AMAQI
26th Jul 2026284 AMAQI
27°C24/33°C
26th Jul 2026215 AMAQI
26th Jul 2026266 AMAQI
26th Jul 2026287 AMAQI
26th Jul 2026288 AMAQI
26th Jul 2026329 AMAQI
26th Jul 20263210 AMAQI
26th Jul 20262911 AMAQI
26th Jul 20262312 PMAQI
26th Jul 2026271 PMAQI
26th Jul 2026252 PMAQI
26th Jul 2026213 PMAQI
26th Jul 2026334 PMAQI
26th Jul 2026185 PMAQI
26th Jul 2026176 PMAQI
26th Jul 2026207 PMAQI
26th Jul 2026368 PMAQI
26th Jul 2026279 PMAQI
26th Jul 20262510 PMAQI
26th Jul 20262111 PMAQI
27th Jul 20262712 AMAQI
27th Jul 2026271 AMAQI
27th Jul 2026272 AMAQI
27th Jul 2026253 AMAQI
27th Jul 2026294 AMAQI
26°C23/31°C
27th Jul 2026295 AMAQI
27th Jul 2026276 AMAQI
27th Jul 2026237 AMAQI
27th Jul 2026228 AMAQI
27th Jul 2026229 AMAQI
27th Jul 20262110 AMAQI
27th Jul 20262511 AMAQI
27th Jul 20262212 PMAQI
27th Jul 2026211 PMAQI
27th Jul 2026212 PMAQI
27th Jul 2026253 PMAQI
27th Jul 2026214 PMAQI
27th Jul 2026345 PMAQI
27th Jul 2026326 PMAQI
27th Jul 2026257 PMAQI
27th Jul 2026278 PMAQI
27th Jul 2026239 PMAQI
27th Jul 20262310 PMAQI
27th Jul 20262511 PMAQI
28th Jul 20262912 AMAQI
28th Jul 2026251 AMAQI
28th Jul 2026332 AMAQI
28th Jul 2026253 AMAQI
28th Jul 2026274 AMAQI
26°C22/31°C
28th Jul 2026255 AMAQI
28th Jul 2026326 AMAQI
28th Jul 2026297 AMAQI
28th Jul 2026298 AMAQI
28th Jul 2026239 AMAQI
28th Jul 20262510 AMAQI
28th Jul 20262711 AMAQI
28th Jul 20262112 PMAQI
28th Jul 2026251 PMAQI
28th Jul 2026212 PMAQI
28th Jul 2026253 PMAQI
28th Jul 2026234 PMAQI
28th Jul 2026255 PMAQI
28th Jul 2026256 PMAQI
28th Jul 2026277 PMAQI
28th Jul 2026258 PMAQI
28th Jul 2026259 PMAQI
28th Jul 20262510 PMAQI
28th Jul 20262511 PMAQI
29th Jul 20262112 AMAQI
29th Jul 2026211 AMAQI
29th Jul 2026212 AMAQI
29th Jul 2026273 AMAQI
29th Jul 2026274 AMAQI
26°C22/31°C
29th Jul 2026335 AMAQI
29th Jul 2026276 AMAQI
29th Jul 2026217 AMAQI
29th Jul 2026258 AMAQI
29th Jul 2026299 AMAQI
29th Jul 20262910 AMAQI
29th Jul 20262411 AMAQI
29th Jul 20262512 PMAQI
29th Jul 2026211 PMAQI
29th Jul 2026252 PMAQI
29th Jul 2026313 PMAQI
29th Jul 2026214 PMAQI
29th Jul 2026215 PMAQI
29th Jul 2026276 PMAQI
29th Jul 2026227 PMAQI
29th Jul 2026258 PMAQI
29th Jul 2026219 PMAQI
29th Jul 20263010 PMAQI
29th Jul 20262711 PMAQI
30th Jul 20262112 AMAQI
30th Jul 2026301 AMAQI
30th Jul 2026302 AMAQI
30th Jul 2026213 AMAQI
30th Jul 2026334 AMAQI
26°C21/31°C
30th Jul 2026255 AMAQI
30th Jul 2026226 AMAQI
30th Jul 2026257 AMAQI
30th Jul 2026328 AMAQI
30th Jul 2026219 AMAQI
30th Jul 20262210 AMAQI
30th Jul 20262711 AMAQI
30th Jul 20262912 PMAQI
30th Jul 2026281 PMAQI
30th Jul 2026282 PMAQI
30th Jul 2026303 PMAQI
30th Jul 2026344 PMAQI
30th Jul 2026405 PMAQI
30th Jul 2026466 PMAQI
30th Jul 2026387 PMAQI
30th Jul 2026318 PMAQI
30th Jul 2026319 PMAQI
30th Jul 20263610 PMAQI
30th Jul 20263111 PMAQI
31st Jul 20263412 AMAQI
31st Jul 2026401 AMAQI
31st Jul 2026462 AMAQI
31st Jul 2026483 AMAQI
31st Jul 2026334 AMAQI
27°C23/31°C
31st Jul 2026295 AMAQI
31st Jul 2026276 AMAQI
31st Jul 2026277 AMAQI
31st Jul 2026258 AMAQI
31st Jul 2026329 AMAQI
31st Jul 20263110 AMAQI
31st Jul 20262511 AMAQI
31st Jul 20262312 PMAQI
31st Jul 2026241 PMAQI
31st Jul 2026382 PMAQI
31st Jul 2026313 PMAQI
31st Jul 2026364 PMAQI
31st Jul 2026495 PMAQI
31st Jul 2026426 PMAQI
31st Jul 2026367 PMAQI
31st Jul 2026408 PMAQI
31st Jul 2026369 PMAQI
31st Jul 20263110 PMAQI
31st Jul 20263611 PMAQI
1st Aug 20264012 AMAQI
1st Aug 2026441 AMAQI
1st Aug 2026442 AMAQI
1st Aug 2026423 AMAQI
1st Aug 2026424 AMAQI
27°C24/32°C
1st Aug 2026505 AMAQI
1st Aug 2026606 AMAQI
1st Aug 2026567 AMAQI
1st Aug 2026628 AMAQI
1st Aug 2026789 AMAQI
1st Aug 20269210 AMAQI
1st Aug 20267011 AMAQI
1st Aug 20263612 PMAQI
1st Aug 2026381 PMAQI
1st Aug 2026402 PMAQI
1st Aug 2026363 PMAQI
1st Aug 2026314 PMAQI
1st Aug 2026365 PMAQI
1st Aug 2026406 PMAQI
1st Aug 2026387 PMAQI
1st Aug 2026368 PMAQI
1st Aug 2026369 PMAQI
1st Aug 20264010 PMAQI
1st Aug 20264011 PMAQI
2nd Aug 20263812 AMAQI
2nd Aug 2026361 AMAQI
2nd Aug 2026382 AMAQI
2nd Aug 2026363 AMAQI
2nd Aug 2026314 AMAQI
28°C24/33°C
2nd Aug 2026335 AMAQI
2nd Aug 2026336 AMAQI
2nd Aug 2026337 AMAQI
2nd Aug 2026368 AMAQI
2nd Aug 2026389 AMAQI
2nd Aug 20263810 AMAQI
2nd Aug 20263311 AMAQI
2nd Aug 20263112 PMAQI
2nd Aug 2026331 PMAQI
2nd Aug 2026332 PMAQI
2nd Aug 2026333 PMAQI
2nd Aug 2026274 PMAQI
2nd Aug 2026295 PMAQI
2nd Aug 2026276 PMAQI
2nd Aug 2026257 PMAQI
2nd Aug 2026258 PMAQI
2nd Aug 2026279 PMAQI
2nd Aug 20262710 PMAQI
2nd Aug 20262711 PMAQI
3rd Aug 20262712 AMAQI
3rd Aug 2026251 AMAQI
3rd Aug 2026252 AMAQI
3rd Aug 2026253 AMAQI
3rd Aug 2026254 AMAQI
27°C23/31°C
3rd Aug 2026255 AMAQI
3rd Aug 2026256 AMAQI
3rd Aug 2026277 AMAQI
3rd Aug 2026278 AMAQI
3rd Aug 2026279 AMAQI
3rd Aug 20262510 AMAQI
3rd Aug 20262311 AMAQI
3rd Aug 20262512 PMAQI
3rd Aug 2026251 PMAQI
3rd Aug 2026272 PMAQI
3rd Aug 2026253 PMAQI
3rd Aug 2026254 PMAQI
3rd Aug 2026255 PMAQI
3rd Aug 2026276 PMAQI
3rd Aug 2026277 PMAQI
3rd Aug 2026388 PMAQI
3rd Aug 2026429 PMAQI
3rd Aug 20264610 PMAQI
3rd Aug 20264611 PMAQI
4th Aug 20264012 AMAQI
4th Aug 2026401 AMAQI
4th Aug 2026332 AMAQI
4th Aug 2026343 AMAQI
4th Aug 2026384 AMAQI
28°C24/33°C
4th Aug 2026385 AMAQI
4th Aug 2026446 AMAQI
4th Aug 2026467 AMAQI
4th Aug 2026518 AMAQI
4th Aug 2026489 AMAQI
4th Aug 20264610 AMAQI
4th Aug 20264811 AMAQI
4th Aug 20264812 PMAQI
4th Aug 2026491 PMAQI
4th Aug 2026552 PMAQI
4th Aug 2026543 PMAQI
4th Aug 2026534 PMAQI
4th Aug 2026535 PMAQI
4th Aug 2026466 PMAQI
4th Aug 2026367 PMAQI
4th Aug 2026388 PMAQI
4th Aug 2026389 PMAQI
4th Aug 20263610 PMAQI
4th Aug 20263811 PMAQI
5th Aug 20263612 AMAQI
5th Aug 2026331 AMAQI
5th Aug 2026382 AMAQI
5th Aug 2026363 AMAQI
5th Aug 2026384 AMAQI
28°C24/31°C
5th Aug 2026385 AMAQI
5 AM5th Aug 2026386 AMAQI
5th Aug 2026407 AMAQI
5th Aug 2026448 AMAQI
5th Aug 2026449 AMAQI
5th Aug 20264910 AMAQI
5th Aug 20263311 AMAQI
11 AM5th Aug 20263112 PMAQI
5th Aug 2026501 PMAQI
5th Aug 2026422 PMAQI
5th Aug 2026383 PMAQI
5th Aug 2026524 PMAQI
5th Aug 2026535 PMAQI
5th Aug 2026546 PMAQI
6 PM5th Aug 2026577 PMAQI
5th Aug 2026448 PMAQI
5th Aug 2026549 PMAQI
5th Aug 20265110 PMAQI
5th Aug 20264411 PMAQI
11 PM4 AM
27°C23/32°C
Day time
Avg. Highest Time
8 AM - 9 AM
34AQI
2 hours / Day
60 hours / Month
Avg. Lowest Time
12 PM
29AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 8 AM to 9 AM (Avg. 34), while the lowest AQI was between 12 PM to 12 PM (Avg. 29).
Night time
Avg. Highest Time
9 PM - 11 PM
34AQI
3 hours / Day
90 hours / Month
Avg. Lowest Time
4 AM
31AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 9 PM to 11 PM (Avg. 34), while the lowest AQI was between 4 AM to 4 AM (Avg. 31).
2026 Days Vs Air Quality
Ershui, Changhua, Taiwan
2026
43%
91
57%
122
Total number of days with different AQI categories in last 217 days in 2026 (148 days remaining)
Good
91 DaysModerate
122 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 43%
Health Risk Level:
Significant
In 2026, 43% of 217 days were within WHO’s safe air quality limits, and 57% exceeded them. The risk of health issues is Significant, especially for those with existing respiratory or heart conditions.
Annual Air Quality Insights
Ershui, Changhua, Taiwan
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
44AQI (US)
44AQI (US)
2nd January 2026
38AQI (US)
38AQI (US)
3rd January 2026
60AQI (US)
60AQI (US)
4th January 2026
70AQI (US)
70AQI (US)
5th January 2026
79AQI (US)
79AQI (US)
6th January 2026
70AQI (US)
70AQI (US)
7th January 2026
68AQI (US)
68AQI (US)
8th January 2026
76AQI (US)
76AQI (US)
9th January 2026
72AQI (US)
72AQI (US)
10th January 2026
76AQI (US)
76AQI (US)
11th January 2026
65AQI (US)
65AQI (US)
12th January 2026
83AQI (US)
83AQI (US)
13th January 2026
68AQI (US)
68AQI (US)
14th January 2026
72AQI (US)
72AQI (US)
15th January 2026
82AQI (US)
82AQI (US)
16th January 2026
69AQI (US)
69AQI (US)
17th January 2026
78AQI (US)
78AQI (US)
18th January 2026
80AQI (US)
80AQI (US)
19th January 2026
76AQI (US)
76AQI (US)
20th January 2026
52AQI (US)
52AQI (US)
21st January 2026
45AQI (US)
45AQI (US)
22nd January 2026
50AQI (US)
50AQI (US)
23rd January 2026
61AQI (US)
61AQI (US)
24th January 2026
65AQI (US)
65AQI (US)
25th January 2026
66AQI (US)
66AQI (US)
26th January 2026
83AQI (US)
83AQI (US)
27th January 2026
71AQI (US)
71AQI (US)
28th January 2026
49AQI (US)
49AQI (US)
29th January 2026
60AQI (US)
60AQI (US)
30th January 2026
65AQI (US)
65AQI (US)
31st January 2026
72AQI (US)
72AQI (US)
1st February 2026
32AQI (US)
32AQI (US)
2nd February 2026
52AQI (US)
52AQI (US)
3rd February 2026
73AQI (US)
73AQI (US)
4th February 2026
87AQI (US)
87AQI (US)
5th February 2026
78AQI (US)
78AQI (US)
6th February 2026
85AQI (US)
85AQI (US)
7th February 2026
52AQI (US)
52AQI (US)
8th February 2026
56AQI (US)
56AQI (US)
9th February 2026
74AQI (US)
74AQI (US)
10th February 2026
68AQI (US)
68AQI (US)
11th February 2026
59AQI (US)
59AQI (US)
12th February 2026
69AQI (US)
69AQI (US)
13th February 2026
83AQI (US)
83AQI (US)
14th February 2026
68AQI (US)
68AQI (US)
15th February 2026
49AQI (US)
49AQI (US)
16th February 2026
59AQI (US)
59AQI (US)
17th February 2026
61AQI (US)
61AQI (US)
18th February 2026
39AQI (US)
39AQI (US)
19th February 2026
66AQI (US)
66AQI (US)
20th February 2026
69AQI (US)
69AQI (US)
21st February 2026
85AQI (US)
85AQI (US)
22nd February 2026
75AQI (US)
75AQI (US)
23rd February 2026
71AQI (US)
71AQI (US)
24th February 2026
71AQI (US)
71AQI (US)
25th February 2026
71AQI (US)
71AQI (US)
26th February 2026
61AQI (US)
61AQI (US)
27th February 2026
52AQI (US)
52AQI (US)
28th February 2026
60AQI (US)
60AQI (US)
1st March 2026
62AQI (US)
62AQI (US)
2nd March 2026
55AQI (US)
55AQI (US)
3rd March 2026
47AQI (US)
47AQI (US)
4th March 2026
34AQI (US)
34AQI (US)
5th March 2026
59AQI (US)
59AQI (US)
6th March 2026
35AQI (US)
35AQI (US)
7th March 2026
51AQI (US)
51AQI (US)
8th March 2026
71AQI (US)
71AQI (US)
9th March 2026
56AQI (US)
56AQI (US)
10th March 2026
38AQI (US)
38AQI (US)
11th March 2026
57AQI (US)
57AQI (US)
12th March 2026
51AQI (US)
51AQI (US)
13th March 2026
69AQI (US)
69AQI (US)
14th March 2026
70AQI (US)
70AQI (US)
15th March 2026
78AQI (US)
78AQI (US)
16th March 2026
63AQI (US)
63AQI (US)
17th March 2026
53AQI (US)
53AQI (US)
18th March 2026
57AQI (US)
57AQI (US)
19th March 2026
75AQI (US)
75AQI (US)
20th March 2026
84AQI (US)
84AQI (US)
21st March 2026
82AQI (US)
82AQI (US)
22nd March 2026
77AQI (US)
77AQI (US)
23rd March 2026
84AQI (US)
84AQI (US)
24th March 2026
99AQI (US)
99AQI (US)
25th March 2026
70AQI (US)
70AQI (US)
26th March 2026
76AQI (US)
76AQI (US)
27th March 2026
59AQI (US)
59AQI (US)
28th March 2026
90AQI (US)
90AQI (US)
29th March 2026
88AQI (US)
88AQI (US)
30th March 2026
77AQI (US)
77AQI (US)
31st March 2026
52AQI (US)
52AQI (US)
1st April 2026
62AQI (US)
62AQI (US)
2nd April 2026
69AQI (US)
69AQI (US)
3rd April 2026
54AQI (US)
54AQI (US)
4th April 2026
48AQI (US)
48AQI (US)
5th April 2026
36AQI (US)
36AQI (US)
6th April 2026
62AQI (US)
62AQI (US)
7th April 2026
45AQI (US)
45AQI (US)
8th April 2026
47AQI (US)
47AQI (US)
9th April 2026
75AQI (US)
75AQI (US)
10th April 2026
50AQI (US)
50AQI (US)
11th April 2026
54AQI (US)
54AQI (US)
12th April 2026
69AQI (US)
69AQI (US)
13th April 2026
52AQI (US)
52AQI (US)
14th April 2026
40AQI (US)
40AQI (US)
15th April 2026
40AQI (US)
40AQI (US)
16th April 2026
58AQI (US)
58AQI (US)
17th April 2026
18th April 2026
86AQI (US)
86AQI (US)
19th April 2026
83AQI (US)
83AQI (US)
20th April 2026
76AQI (US)
76AQI (US)
21st April 2026
68AQI (US)
68AQI (US)
22nd April 2026
23rd April 2026
61AQI (US)
61AQI (US)
24th April 2026
53AQI (US)
53AQI (US)
25th April 2026
54AQI (US)
54AQI (US)
26th April 2026
59AQI (US)
59AQI (US)
27th April 2026
53AQI (US)
53AQI (US)
28th April 2026
63AQI (US)
63AQI (US)
29th April 2026
70AQI (US)
70AQI (US)
30th April 2026
36AQI (US)
36AQI (US)
1st May 2026
59AQI (US)
59AQI (US)
2nd May 2026
75AQI (US)
75AQI (US)
3rd May 2026
49AQI (US)
49AQI (US)
4th May 2026
54AQI (US)
54AQI (US)
5th May 2026
75AQI (US)
75AQI (US)
6th May 2026
19AQI (US)
19AQI (US)
7th May 2026
47AQI (US)
47AQI (US)
8th May 2026
56AQI (US)
56AQI (US)
9th May 2026
10th May 2026
38AQI (US)
38AQI (US)
11th May 2026
54AQI (US)
54AQI (US)
12th May 2026
68AQI (US)
68AQI (US)
13th May 2026
66AQI (US)
66AQI (US)
14th May 2026
56AQI (US)
56AQI (US)
15th May 2026
26AQI (US)
26AQI (US)
16th May 2026
76AQI (US)
76AQI (US)
17th May 2026
60AQI (US)
60AQI (US)
18th May 2026
53AQI (US)
53AQI (US)
19th May 2026
45AQI (US)
45AQI (US)
20th May 2026
61AQI (US)
61AQI (US)
21st May 2026
68AQI (US)
68AQI (US)
22nd May 2026
76AQI (US)
76AQI (US)
23rd May 2026
67AQI (US)
67AQI (US)
24th May 2026
65AQI (US)
65AQI (US)
25th May 2026
57AQI (US)
57AQI (US)
26th May 2026
42AQI (US)
42AQI (US)
27th May 2026
27AQI (US)
27AQI (US)
28th May 2026
28AQI (US)
28AQI (US)
29th May 2026
30AQI (US)
30AQI (US)
30th May 2026
66AQI (US)
66AQI (US)
31st May 2026
60AQI (US)
60AQI (US)
1st June 2026
63AQI (US)
63AQI (US)
2nd June 2026
58AQI (US)
58AQI (US)
3rd June 2026
42AQI (US)
42AQI (US)
4th June 2026
22AQI (US)
22AQI (US)
5th June 2026
20AQI (US)
20AQI (US)
6th June 2026
27AQI (US)
27AQI (US)
7th June 2026
23AQI (US)
23AQI (US)
8th June 2026
20AQI (US)
20AQI (US)
9th June 2026
17AQI (US)
17AQI (US)
10th June 2026
24AQI (US)
24AQI (US)
11th June 2026
25AQI (US)
25AQI (US)
12th June 2026
29AQI (US)
29AQI (US)
13th June 2026
29AQI (US)
29AQI (US)
14th June 2026
24AQI (US)
24AQI (US)
15th June 2026
23AQI (US)
23AQI (US)
16th June 2026
27AQI (US)
27AQI (US)
17th June 2026
25AQI (US)
25AQI (US)
18th June 2026
26AQI (US)
26AQI (US)
19th June 2026
27AQI (US)
27AQI (US)
20th June 2026
25AQI (US)
25AQI (US)
21st June 2026
22AQI (US)
22AQI (US)
22nd June 2026
21AQI (US)
21AQI (US)
23rd June 2026
24AQI (US)
24AQI (US)
24th June 2026
24AQI (US)
24AQI (US)
25th June 2026
28AQI (US)
28AQI (US)
26th June 2026
31AQI (US)
31AQI (US)
27th June 2026
25AQI (US)
25AQI (US)
28th June 2026
29AQI (US)
29AQI (US)
29th June 2026
27AQI (US)
27AQI (US)
30th June 2026
25AQI (US)
25AQI (US)
1st July 2026
26AQI (US)
26AQI (US)
2nd July 2026
27AQI (US)
27AQI (US)
3rd July 2026
27AQI (US)
27AQI (US)
4th July 2026
26AQI (US)
26AQI (US)
5th July 2026
23AQI (US)
23AQI (US)
6th July 2026
24AQI (US)
24AQI (US)
7th July 2026
26AQI (US)
26AQI (US)
8th July 2026
24AQI (US)
24AQI (US)
9th July 2026
38AQI (US)
38AQI (US)
10th July 2026
36AQI (US)
36AQI (US)
11th July 2026
15AQI (US)
15AQI (US)
12th July 2026
26AQI (US)
26AQI (US)
13th July 2026
27AQI (US)
27AQI (US)
14th July 2026
26AQI (US)
26AQI (US)
15th July 2026
25AQI (US)
25AQI (US)
16th July 2026
26AQI (US)
26AQI (US)
17th July 2026
26AQI (US)
26AQI (US)
18th July 2026
27AQI (US)
27AQI (US)
19th July 2026
28AQI (US)
28AQI (US)
20th July 2026
24AQI (US)
24AQI (US)
21st July 2026
29AQI (US)
29AQI (US)
22nd July 2026
38AQI (US)
38AQI (US)
23rd July 2026
50AQI (US)
50AQI (US)
24th July 2026
58AQI (US)
58AQI (US)
25th July 2026
54AQI (US)
54AQI (US)
26th July 2026
28AQI (US)
28AQI (US)
27th July 2026
25AQI (US)
25AQI (US)
28th July 2026
26AQI (US)
26AQI (US)
29th July 2026
25AQI (US)
25AQI (US)
30th July 2026
30AQI (US)
30AQI (US)
31st July 2026
34AQI (US)
34AQI (US)
1st August 2026
47AQI (US)
47AQI (US)
2nd August 2026
32AQI (US)
32AQI (US)
3rd August 2026
28AQI (US)
28AQI (US)
4th August 2026
44AQI (US)
44AQI (US)
5th August 2026
6th August 2026
7th August 2026
8th August 2026
9th August 2026
10th August 2026
11th August 2026
12th August 2026
13th August 2026
14th August 2026
15th August 2026
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
67AQI (US)
65AQI (US)
65AQI (US)
58AQI (US)
54AQI (US)
28AQI (US)
30AQI (US)
38AQI (US)
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202652AQI (US)
5
26
3
25
4
27
8
20
10
20
28
2
29
2
4
91
122
Highest AQI (US) recorded in
January67AQI (US)
Lowest AQI (US) recorded in
June28AQI (US)
202558AQI (US)
30
1
3
25
3
28
1
29
15
16
29
1
28
3
29
2
21
9
5
24
2
4
25
1
30
1
138
222
5
Highest AQI (US) recorded in
January71AQI (US)
Lowest AQI (US) recorded in
June34AQI (US)
202461AQI (US)
1
24
6
26
3
23
8
2
26
2
7
24
28
1
31
27
4
14
16
14
17
9
20
1
1
30
134
211
20
Highest AQI (US) recorded in
January86AQI (US)
Lowest AQI (US) recorded in
July31AQI (US)
202362AQI (US)
3
22
6
4
23
1
2
28
1
1
25
4
10
19
2
30
31
28
3
11
19
6
20
5
1
27
1
3
27
1
130
213
21
Highest AQI (US) recorded in
April80AQI (US)
Lowest AQI (US) recorded in
July26AQI (US)
202258AQI (US)
1
27
2
5
16
1
18
12
6
21
3
16
15
30
20
1
1
11
17
13
18
6
23
1
12
19
122
175
18
Highest AQI (US) recorded in
March88AQI (US)
Lowest AQI (US) recorded in
June25AQI (US)
202167AQI (US)
1
17
11
17
11
15
16
23
7
13
16
1
30
29
2
26
5
14
16
7
23
1
1
29
1
28
2
122
191
49
Highest AQI (US) recorded in
February99AQI (US)
Lowest AQI (US) recorded in
June32AQI (US)
202057AQI (US)
1
6
6
1
20
12
6
30
31
26
5
6
24
1
29
1
30
6
23
2
114
143
9
Highest AQI (US) recorded in
March94AQI (US)
Lowest AQI (US) recorded in
June30AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Most Polluted Year Recorded
2021(Avg.)
67AQI (US)Least Polluted Year Recorded
2026(Avg.)
52AQI (US)Ershui's annual 2026 AQI (US) (52) shows an average percentage change of -13.7% (improved AQI (US)) compared to previous years: 2020 (57), 2021 (67), 2022 (58), 2023 (62), 2024 (61), 2025 (58).
