Country Background
HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

Matsu, Nangan, Lienchiang, 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

Matsu, Nangan, Lienchiang, Taiwan

2022
2023
2024
2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
27th Aug 2024
85AQI
Lowest AQI recorded on
9th Aug 2026
23AQI

Same Day Analysis (13th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 2nd highest AQI at 58 of Moderate air quality, showing improvement over 2024 on the same day.

Day & Night AQI Trend: 13th Aug - 14th Aug 2026

Matsu, Nangan, Lienchiang, Taiwan

AQI
Day
Night
.

5 AM13th Aug 2026

6 PM

4 AM14th Aug 2026

Day time
Avg. Highest Time
1PM13th Aug

69AQI

Avg. Lowest Time
10AM13th Aug

46AQI

Night time
Avg. Highest Time
7PM13th Aug

60AQI

Avg. Lowest Time
8PM13th Aug

30AQI

In the last 24 hours,

Matsu's AQI reached its highest point of 69 at 1 PM during the Day, while the lowest point, 30, was recorded at 8 PM during the Night between 13th Aug and 14th Aug 2026.

Day & Night AQI Trend : Jul - Aug 2026

Matsu, Nangan, Lienchiang, Taiwan

JulAug
16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th
Day
Night
16th Jul 2026245 AMAQI
16th Jul 2026226 AMAQI
16th Jul 2026287 AMAQI
16th Jul 2026208 AMAQI
16th Jul 2026299 AMAQI
16th Jul 20262810 AMAQI
16th Jul 20262611 AMAQI
16th Jul 20262612 PMAQI
16th Jul 2026251 PMAQI
16th Jul 2026222 PMAQI
16th Jul 2026243 PMAQI
16th Jul 2026264 PMAQI
16th Jul 2026315 PMAQI
16th Jul 2026306 PMAQI
16th Jul 2026287 PMAQI
16th Jul 2026288 PMAQI
16th Jul 2026289 PMAQI
16th Jul 20263010 PMAQI
16th Jul 20263011 PMAQI
17th Jul 20263212 AMAQI
17th Jul 2026301 AMAQI
17th Jul 2026292 AMAQI
17th Jul 2026283 AMAQI
17th Jul 2026284 AMAQI

27°C26/28°C

17th Jul 2026285 AMAQI
17th Jul 2026276 AMAQI
17th Jul 2026247 AMAQI
17th Jul 2026248 AMAQI
17th Jul 2026289 AMAQI
17th Jul 20262410 AMAQI
17th Jul 20262611 AMAQI
17th Jul 20262412 PMAQI
17th Jul 2026241 PMAQI
17th Jul 2026242 PMAQI
17th Jul 2026293 PMAQI
17th Jul 2026214 PMAQI
17th Jul 2026325 PMAQI
17th Jul 2026236 PMAQI
17th Jul 2026257 PMAQI
17th Jul 2026238 PMAQI
17th Jul 2026259 PMAQI
17th Jul 20262310 PMAQI
17th Jul 20262211 PMAQI
18th Jul 20262312 AMAQI
18th Jul 2026211 AMAQI
18th Jul 2026222 AMAQI
18th Jul 2026213 AMAQI
18th Jul 2026224 AMAQI

27°C26/28°C

18th Jul 2026235 AMAQI
18th Jul 2026226 AMAQI
18th Jul 2026237 AMAQI
18th Jul 2026218 AMAQI
18th Jul 2026279 AMAQI
18th Jul 20262510 AMAQI
18th Jul 20262911 AMAQI
18th Jul 20262912 PMAQI
18th Jul 2026311 PMAQI
18th Jul 2026332 PMAQI
18th Jul 2026293 PMAQI
18th Jul 2026364 PMAQI
18th Jul 2026405 PMAQI
18th Jul 2026386 PMAQI
18th Jul 2026387 PMAQI
18th Jul 2026368 PMAQI
18th Jul 2026389 PMAQI
18th Jul 20264010 PMAQI
18th Jul 20263811 PMAQI
19th Jul 20263812 AMAQI
19th Jul 2026381 AMAQI
19th Jul 2026332 AMAQI
19th Jul 2026383 AMAQI
19th Jul 2026364 AMAQI

27°C26/27°C

19th Jul 2026335 AMAQI
19th Jul 2026366 AMAQI
19th Jul 2026387 AMAQI
19th Jul 2026368 AMAQI
19th Jul 2026389 AMAQI
19th Jul 20263610 AMAQI
19th Jul 20263311 AMAQI
19th Jul 20263612 PMAQI
19th Jul 2026381 PMAQI
19th Jul 2026362 PMAQI
19th Jul 2026403 PMAQI
19th Jul 2026424 PMAQI
19th Jul 2026405 PMAQI
19th Jul 2026386 PMAQI
19th Jul 2026367 PMAQI
19th Jul 2026388 PMAQI
19th Jul 2026389 PMAQI
19th Jul 20263810 PMAQI
19th Jul 20263611 PMAQI
20th Jul 20263612 AMAQI
20th Jul 2026361 AMAQI
20th Jul 2026402 AMAQI
20th Jul 2026383 AMAQI
20th Jul 2026364 AMAQI

27°C26/27°C

20th Jul 2026335 AMAQI
20th Jul 2026336 AMAQI
20th Jul 2026337 AMAQI
20th Jul 2026338 AMAQI
20th Jul 2026319 AMAQI
20th Jul 20263310 AMAQI
20th Jul 20263811 AMAQI
20th Jul 20263112 PMAQI
20th Jul 2026311 PMAQI
20th Jul 2026362 PMAQI
20th Jul 2026363 PMAQI
20th Jul 2026334 PMAQI
20th Jul 2026315 PMAQI
20th Jul 2026296 PMAQI
20th Jul 2026297 PMAQI
20th Jul 2026318 PMAQI
20th Jul 2026339 PMAQI
20th Jul 20262910 PMAQI
20th Jul 20263611 PMAQI
21st Jul 20263312 AMAQI
21st Jul 2026331 AMAQI
21st Jul 2026292 AMAQI
21st Jul 2026293 AMAQI
21st Jul 2026314 AMAQI

26°C26/27°C

21st Jul 2026275 AMAQI
21st Jul 2026256 AMAQI
21st Jul 2026297 AMAQI
21st Jul 2026298 AMAQI
21st Jul 2026299 AMAQI
21st Jul 20263110 AMAQI
21st Jul 20263812 PMAQI
21st Jul 2026401 PMAQI
21st Jul 2026362 PMAQI
21st Jul 2026383 PMAQI
21st Jul 2026404 PMAQI
21st Jul 2026405 PMAQI
21st Jul 2026866 PMAQI
21st Jul 2026447 PMAQI
21st Jul 2026448 PMAQI
21st Jul 2026489 PMAQI
21st Jul 20264810 PMAQI
21st Jul 20264811 PMAQI
22nd Jul 20264212 AMAQI
22nd Jul 2026441 AMAQI
22nd Jul 2026442 AMAQI
22nd Jul 2026423 AMAQI
22nd Jul 2026384 AMAQI

26°C26/27°C

22nd Jul 2026465 AMAQI
22nd Jul 2026486 AMAQI
22nd Jul 2026427 AMAQI
22nd Jul 2026508 AMAQI
22nd Jul 2026519 AMAQI
22nd Jul 20265110 AMAQI
22nd Jul 20265111 AMAQI
22nd Jul 20265212 PMAQI
22nd Jul 2026531 PMAQI
22nd Jul 2026532 PMAQI
22nd Jul 2026553 PMAQI
22nd Jul 2026594 PMAQI
22nd Jul 2026545 PMAQI
22nd Jul 2026556 PMAQI
22nd Jul 2026557 PMAQI
22nd Jul 2026558 PMAQI
22nd Jul 2026559 PMAQI
22nd Jul 20265410 PMAQI
22nd Jul 20265411 PMAQI
23rd Jul 20265212 AMAQI
23rd Jul 2026531 AMAQI
23rd Jul 2026542 AMAQI
23rd Jul 2026503 AMAQI
23rd Jul 2026514 AMAQI

26°C26/27°C

23rd Jul 2026505 AMAQI
23rd Jul 2026446 AMAQI
23rd Jul 2026427 AMAQI
23rd Jul 2026468 AMAQI
23rd Jul 2026469 AMAQI
23rd Jul 20264410 AMAQI
23rd Jul 20265011 AMAQI
23rd Jul 20265112 PMAQI
23rd Jul 2026521 PMAQI
23rd Jul 2026512 PMAQI
23rd Jul 2026533 PMAQI
23rd Jul 2026504 PMAQI
23rd Jul 2026535 PMAQI
23rd Jul 2026566 PMAQI
23rd Jul 2026557 PMAQI
23rd Jul 2026528 PMAQI
23rd Jul 2026519 PMAQI
23rd Jul 20265110 PMAQI
23rd Jul 20265111 PMAQI
24th Jul 20265012 AMAQI
24th Jul 2026461 AMAQI
24th Jul 2026462 AMAQI
24th Jul 2026483 AMAQI
24th Jul 2026484 AMAQI

26°C25/27°C

24th Jul 2026405 AMAQI
24th Jul 2026466 AMAQI
24th Jul 2026427 AMAQI
24th Jul 2026488 AMAQI
24th Jul 2026449 AMAQI
24th Jul 20264810 AMAQI
24th Jul 20265011 AMAQI
24th Jul 20264612 PMAQI
24th Jul 2026421 PMAQI
24th Jul 2026422 PMAQI
24th Jul 2026423 PMAQI
24th Jul 2026444 PMAQI
24th Jul 2026385 PMAQI
24th Jul 2026326 PMAQI
24th Jul 2026367 PMAQI
24th Jul 2026388 PMAQI
24th Jul 2026369 PMAQI
24th Jul 20263310 PMAQI
24th Jul 20263111 PMAQI
25th Jul 20262712 AMAQI
25th Jul 2026271 AMAQI
25th Jul 2026252 AMAQI
25th Jul 2026213 AMAQI
25th Jul 2026214 AMAQI

26°C26/27°C

25th Jul 2026235 AMAQI
25th Jul 2026216 AMAQI
25th Jul 2026367 AMAQI
25th Jul 2026278 AMAQI
25th Jul 2026219 AMAQI
25th Jul 20262110 AMAQI
25th Jul 20262111 AMAQI
25th Jul 20262212 PMAQI
25th Jul 2026251 PMAQI
25th Jul 2026222 PMAQI
25th Jul 2026243 PMAQI
25th Jul 2026244 PMAQI
25th Jul 2026265 PMAQI
25th Jul 2026256 PMAQI
25th Jul 2026257 PMAQI
25th Jul 2026268 PMAQI
25th Jul 2026259 PMAQI
25th Jul 20262810 PMAQI
25th Jul 20262711 PMAQI
26th Jul 20262812 AMAQI
26th Jul 2026281 AMAQI
26th Jul 2026302 AMAQI
26th Jul 2026293 AMAQI
26th Jul 2026284 AMAQI

27°C27/28°C

26th Jul 2026335 AMAQI
26th Jul 2026296 AMAQI
26th Jul 2026337 AMAQI
26th Jul 2026298 AMAQI
26th Jul 2026289 AMAQI
26th Jul 20262910 AMAQI
26th Jul 20263311 AMAQI
26th Jul 20262912 PMAQI
26th Jul 2026381 PMAQI
26th Jul 2026292 PMAQI
26th Jul 2026293 PMAQI
26th Jul 2026334 PMAQI
26th Jul 2026405 PMAQI
26th Jul 2026386 PMAQI
26th Jul 2026337 PMAQI
26th Jul 2026388 PMAQI
26th Jul 2026369 PMAQI
26th Jul 20263610 PMAQI
26th Jul 20263611 PMAQI
27th Jul 20263612 AMAQI
27th Jul 2026361 AMAQI
27th Jul 2026292 AMAQI
27th Jul 2026293 AMAQI
27th Jul 2026294 AMAQI

27°C27/29°C

27th Jul 2026255 AMAQI
27th Jul 2026256 AMAQI
27th Jul 2026257 AMAQI
27th Jul 2026238 AMAQI
27th Jul 2026259 AMAQI
27th Jul 20262510 AMAQI
27th Jul 20262911 AMAQI
27th Jul 20262512 PMAQI
27th Jul 2026251 PMAQI
27th Jul 2026232 PMAQI
27th Jul 2026253 PMAQI
27th Jul 2026234 PMAQI
27th Jul 2026215 PMAQI
27th Jul 2026216 PMAQI
27th Jul 2026217 PMAQI
27th Jul 2026318 PMAQI
27th Jul 2026239 PMAQI
27th Jul 20262510 PMAQI
27th Jul 20263111 PMAQI
28th Jul 20263612 AMAQI
28th Jul 2026251 AMAQI
28th Jul 2026252 AMAQI
28th Jul 2026253 AMAQI
28th Jul 2026294 AMAQI

27°C26/28°C

28th Jul 2026275 AMAQI
28th Jul 2026256 AMAQI
28th Jul 2026257 AMAQI
28th Jul 2026298 AMAQI
28th Jul 2026299 AMAQI
28th Jul 20262910 AMAQI
28th Jul 20262111 AMAQI
28th Jul 20262312 PMAQI
28th Jul 2026211 PMAQI
28th Jul 2026212 PMAQI
28th Jul 2026213 PMAQI
28th Jul 2026524 PMAQI
28th Jul 2026325 PMAQI
28th Jul 2026216 PMAQI
28th Jul 2026257 PMAQI
28th Jul 2026298 PMAQI
28th Jul 2026299 PMAQI
28th Jul 20262910 PMAQI
28th Jul 20263311 PMAQI
29th Jul 20262512 AMAQI
29th Jul 2026251 AMAQI
29th Jul 2026272 AMAQI
29th Jul 2026273 AMAQI
29th Jul 2026314 AMAQI

27°C26/27°C

29th Jul 2026335 AMAQI
29th Jul 2026336 AMAQI
29th Jul 2026257 AMAQI
29th Jul 2026278 AMAQI
29th Jul 2026369 AMAQI
29th Jul 20263610 AMAQI
29th Jul 20262711 AMAQI
29th Jul 20262512 PMAQI
29th Jul 2026421 PMAQI
29th Jul 2026382 PMAQI
29th Jul 2026403 PMAQI
29th Jul 2026404 PMAQI
29th Jul 2026365 PMAQI
29th Jul 2026256 PMAQI
29th Jul 2026257 PMAQI
29th Jul 2026258 PMAQI
29th Jul 2026299 PMAQI
29th Jul 20263110 PMAQI
29th Jul 20263111 PMAQI
30th Jul 20263112 AMAQI
30th Jul 2026341 AMAQI
30th Jul 2026312 AMAQI
30th Jul 2026293 AMAQI
30th Jul 2026274 AMAQI

27°C26/27°C

30th Jul 2026255 AMAQI
30th Jul 2026256 AMAQI
30th Jul 2026217 AMAQI
30th Jul 2026238 AMAQI
30th Jul 2026259 AMAQI
30th Jul 20262510 AMAQI
30th Jul 20262111 AMAQI
30th Jul 20262512 PMAQI
30th Jul 2026251 PMAQI
30th Jul 2026312 PMAQI
30th Jul 2026383 PMAQI
30th Jul 2026384 PMAQI
30th Jul 2026345 PMAQI
30th Jul 2026366 PMAQI
30th Jul 2026317 PMAQI
30th Jul 2026388 PMAQI
30th Jul 2026259 PMAQI
30th Jul 20262910 PMAQI
30th Jul 20262511 PMAQI
31st Jul 20262712 AMAQI
31st Jul 2026251 AMAQI
31st Jul 2026252 AMAQI
31st Jul 2026253 AMAQI
31st Jul 2026274 AMAQI

27°C26/28°C

31st Jul 2026295 AMAQI
31st Jul 2026336 AMAQI
31st Jul 2026337 AMAQI
31st Jul 2026298 AMAQI
31st Jul 2026299 AMAQI
31st Jul 20262910 AMAQI
31st Jul 20263811 AMAQI
31st Jul 20265012 PMAQI
31st Jul 2026361 PMAQI
31st Jul 2026362 PMAQI
31st Jul 2026213 PMAQI
31st Jul 2026294 PMAQI
31st Jul 2026335 PMAQI
31st Jul 2026406 PMAQI
31st Jul 2026467 PMAQI
31st Jul 2026628 PMAQI
31st Jul 2026489 PMAQI
31st Jul 20265910 PMAQI
31st Jul 20266011 PMAQI
1st Aug 20266812 AMAQI
1st Aug 2026681 AMAQI
1st Aug 2026702 AMAQI
1st Aug 2026683 AMAQI
1st Aug 2026684 AMAQI

27°C26/28°C

1st Aug 2026665 AMAQI
1st Aug 2026646 AMAQI
1st Aug 2026587 AMAQI
1st Aug 2026608 AMAQI
1st Aug 2026579 AMAQI
1st Aug 20266410 AMAQI
1st Aug 20266411 AMAQI
1st Aug 20266212 PMAQI
1st Aug 2026671 PMAQI
1st Aug 2026682 PMAQI
1st Aug 2026643 PMAQI
1st Aug 2026444 PMAQI
1st Aug 2026315 PMAQI
1st Aug 2026296 PMAQI
1st Aug 2026277 PMAQI
1st Aug 2026168 PMAQI
1st Aug 2026179 PMAQI
1st Aug 20261210 PMAQI
1st Aug 20261011 PMAQI
2nd Aug 20261212 AMAQI
2nd Aug 2026171 AMAQI
2nd Aug 2026192 AMAQI
2nd Aug 2026293 AMAQI
2nd Aug 2026534 AMAQI

27°C26/28°C

2nd Aug 2026385 AMAQI
2nd Aug 2026336 AMAQI
2nd Aug 2026277 AMAQI
2nd Aug 2026228 AMAQI
2nd Aug 2026269 AMAQI
2nd Aug 20262910 AMAQI
2nd Aug 20263111 AMAQI
2nd Aug 20263412 PMAQI
2nd Aug 2026361 PMAQI
2nd Aug 2026272 PMAQI
2nd Aug 2026233 PMAQI
2nd Aug 2026334 PMAQI
2nd Aug 2026365 PMAQI
2nd Aug 2026366 PMAQI
2nd Aug 2026337 PMAQI
2nd Aug 2026468 PMAQI
2nd Aug 2026539 PMAQI
2nd Aug 20265210 PMAQI
2nd Aug 20264211 PMAQI
3rd Aug 20264012 AMAQI
3rd Aug 2026511 AMAQI
3rd Aug 2026532 AMAQI
3rd Aug 2026583 AMAQI
3rd Aug 2026654 AMAQI

27°C27/28°C

3rd Aug 2026645 AMAQI
3rd Aug 2026636 AMAQI
3rd Aug 2026527 AMAQI
3rd Aug 2026428 AMAQI
3rd Aug 2026429 AMAQI
3rd Aug 20265010 AMAQI
3rd Aug 20264411 AMAQI
3rd Aug 20264212 PMAQI
3rd Aug 2026171 PMAQI
3rd Aug 2026462 PMAQI
3rd Aug 2026423 PMAQI
3rd Aug 2026424 PMAQI
3rd Aug 2026365 PMAQI
3rd Aug 2026386 PMAQI
3rd Aug 2026337 PMAQI
3rd Aug 2026338 PMAQI
3rd Aug 2026339 PMAQI
3rd Aug 20263310 PMAQI
3rd Aug 20262911 PMAQI
4th Aug 20262712 AMAQI
4th Aug 2026251 AMAQI
4th Aug 2026232 AMAQI
4th Aug 2026213 AMAQI
4th Aug 2026234 AMAQI

27°C27/28°C

4th Aug 2026235 AMAQI
4th Aug 2026236 AMAQI
4th Aug 2026257 AMAQI
4th Aug 2026318 AMAQI
4th Aug 2026219 AMAQI
4th Aug 20262110 AMAQI
4th Aug 20262111 AMAQI
4th Aug 20262112 PMAQI
4th Aug 2026251 PMAQI
4th Aug 2026212 PMAQI
4th Aug 2026233 PMAQI
4th Aug 2026214 PMAQI
4th Aug 2026255 PMAQI
4th Aug 2026256 PMAQI
4th Aug 2026217 PMAQI
4th Aug 2026258 PMAQI
4th Aug 2026259 PMAQI
4th Aug 20262510 PMAQI
4th Aug 20262511 PMAQI
5th Aug 20262112 AMAQI
5th Aug 2026231 AMAQI
5th Aug 2026232 AMAQI
5th Aug 2026233 AMAQI
5th Aug 2026234 AMAQI

27°C27/28°C

5th Aug 2026235 AMAQI
5th Aug 2026256 AMAQI
5th Aug 2026237 AMAQI
5th Aug 2026218 AMAQI
5th Aug 2026259 AMAQI
5th Aug 20262510 AMAQI
5th Aug 20262511 AMAQI
5th Aug 20262912 PMAQI
5th Aug 2026271 PMAQI
5th Aug 2026272 PMAQI
5th Aug 2026293 PMAQI
5th Aug 2026274 PMAQI
5th Aug 2026315 PMAQI
5th Aug 2026366 PMAQI
5th Aug 2026317 PMAQI
5th Aug 2026368 PMAQI
5th Aug 2026339 PMAQI
5th Aug 20263610 PMAQI
5th Aug 20262911 PMAQI
6th Aug 20262912 AMAQI
6th Aug 2026311 AMAQI
6th Aug 2026272 AMAQI
6th Aug 2026293 AMAQI
6th Aug 2026294 AMAQI

27°C26/28°C

6th Aug 2026315 AMAQI
6th Aug 2026296 AMAQI
6th Aug 2026277 AMAQI
6th Aug 2026298 AMAQI
6th Aug 2026279 AMAQI
6th Aug 20262910 AMAQI
6th Aug 20263111 AMAQI
6th Aug 20263112 PMAQI
6th Aug 2026271 PMAQI
6th Aug 2026292 PMAQI
6th Aug 2026313 PMAQI
6th Aug 2026334 PMAQI
6th Aug 2026315 PMAQI
6th Aug 2026406 PMAQI
6th Aug 2026407 PMAQI
6th Aug 2026408 PMAQI
6th Aug 2026449 PMAQI
6th Aug 20264410 PMAQI
6th Aug 20264211 PMAQI
7th Aug 20264612 AMAQI
7th Aug 2026441 AMAQI
7th Aug 2026462 AMAQI
7th Aug 2026443 AMAQI
7th Aug 2026444 AMAQI

28°C27/28°C

7th Aug 2026465 AMAQI
7th Aug 2026506 AMAQI
7th Aug 2026487 AMAQI
7th Aug 2026488 AMAQI
7th Aug 2026449 AMAQI
7th Aug 20264610 AMAQI
7th Aug 20264611 AMAQI
7th Aug 20264612 PMAQI
7th Aug 2026501 PMAQI
7th Aug 2026462 PMAQI
7th Aug 2026463 PMAQI
7th Aug 2026524 PMAQI
7th Aug 2026545 PMAQI
7th Aug 2026556 PMAQI
7th Aug 2026567 PMAQI
7th Aug 2026608 PMAQI
7th Aug 2026569 PMAQI
7th Aug 20266510 PMAQI
7th Aug 20267811 PMAQI
8th Aug 20266712 AMAQI
8th Aug 2026581 AMAQI
8th Aug 2026652 AMAQI
8th Aug 2026533 AMAQI
8th Aug 2026714 AMAQI

28°C27/29°C

8th Aug 2026695 AMAQI
8th Aug 2026716 AMAQI
8th Aug 2026507 AMAQI
8th Aug 2026658 AMAQI
8th Aug 2026469 AMAQI
8th Aug 20263310 AMAQI
8th Aug 20264811 AMAQI
8th Aug 20262612 PMAQI
8th Aug 2026421 PMAQI
8th Aug 2026472 PMAQI
8th Aug 2026493 PMAQI
8th Aug 2026304 PMAQI
8th Aug 2026315 PMAQI
8th Aug 2026186 PMAQI
8th Aug 2026287 PMAQI
8th Aug 2026438 PMAQI
8th Aug 2026449 PMAQI
8th Aug 20264910 PMAQI
8th Aug 20263411 PMAQI
9th Aug 20262812 AMAQI
9th Aug 2026201 AMAQI
9th Aug 2026302 AMAQI
9th Aug 2026243 AMAQI
9th Aug 2026204 AMAQI

30°C28/32°C

9th Aug 2026195 AMAQI
9th Aug 2026286 AMAQI
9th Aug 2026177 AMAQI
9th Aug 2026178 AMAQI
9th Aug 2026209 AMAQI
9th Aug 20261310 AMAQI
9th Aug 20262111 AMAQI
9th Aug 20263012 PMAQI
9th Aug 2026541 PMAQI
9th Aug 2026182 PMAQI
9th Aug 2026343 PMAQI
9th Aug 2026294 PMAQI
9th Aug 2026185 PMAQI
9th Aug 2026176 PMAQI
9th Aug 2026207 PMAQI
9th Aug 2026188 PMAQI
9th Aug 2026299 PMAQI
9th Aug 20261710 PMAQI
9th Aug 20262211 PMAQI
10th Aug 20262212 AMAQI
10th Aug 2026181 AMAQI
10th Aug 2026192 AMAQI
10th Aug 2026173 AMAQI
10th Aug 2026124 AMAQI

28°C27/30°C

10th Aug 2026165 AMAQI
10th Aug 2026146 AMAQI
10th Aug 2026507 AMAQI
10th Aug 2026528 AMAQI
10th Aug 2026529 AMAQI
10th Aug 20265210 AMAQI
10th Aug 20262911 AMAQI
10th Aug 20265012 PMAQI
10th Aug 2026251 PMAQI
10th Aug 2026462 PMAQI
10th Aug 2026333 PMAQI
10th Aug 2026254 PMAQI
10th Aug 2026295 PMAQI
10th Aug 2026386 PMAQI
10th Aug 2026467 PMAQI
10th Aug 2026428 PMAQI
10th Aug 2026219 PMAQI
10th Aug 20262110 PMAQI
10th Aug 20262511 PMAQI
11th Aug 20262512 AMAQI
11th Aug 2026251 AMAQI
11th Aug 2026292 AMAQI
11th Aug 2026293 AMAQI
11th Aug 2026294 AMAQI

26°C26/27°C

11th Aug 2026345 AMAQI
11th Aug 2026366 AMAQI
11th Aug 2026387 AMAQI
11th Aug 2026338 AMAQI
11th Aug 2026339 AMAQI
11th Aug 20263610 AMAQI
11th Aug 20264411 AMAQI
11th Aug 20264812 PMAQI
11th Aug 2026601 PMAQI
11th Aug 2026582 PMAQI
11th Aug 2026533 PMAQI
11th Aug 2026584 PMAQI
11th Aug 2026745 PMAQI
11th Aug 2026806 PMAQI
11th Aug 2026657 PMAQI
11th Aug 2026828 PMAQI
11th Aug 2026669 PMAQI
11th Aug 20268010 PMAQI
11th Aug 20266711 PMAQI
12th Aug 20266512 AMAQI
12th Aug 2026691 AMAQI
12th Aug 2026642 AMAQI
12th Aug 2026703 AMAQI
12th Aug 2026604 AMAQI

28°C27/28°C

12th Aug 2026605 AMAQI
12th Aug 2026426 AMAQI
12th Aug 2026597 AMAQI
12th Aug 2026598 AMAQI
12th Aug 2026479 AMAQI
12th Aug 20265410 AMAQI
12th Aug 20266411 AMAQI
12th Aug 20265012 PMAQI
12th Aug 2026511 PMAQI
12th Aug 2026692 PMAQI
12th Aug 2026533 PMAQI
12th Aug 2026204 PMAQI
12th Aug 2026255 PMAQI
12th Aug 2026276 PMAQI
12th Aug 2026297 PMAQI
12th Aug 2026328 PMAQI
12th Aug 2026599 PMAQI
12th Aug 20266010 PMAQI
12th Aug 20266711 PMAQI
13th Aug 20266712 AMAQI
13th Aug 2026741 AMAQI
13th Aug 2026572 AMAQI
13th Aug 2026763 AMAQI
13th Aug 2026684 AMAQI

28°C27/28°C

13th Aug 2026675 AMAQI
13th Aug 2026626 AMAQI
13th Aug 2026687 AMAQI
13th Aug 2026678 AMAQI
13th Aug 2026629 AMAQI
13th Aug 20264610 AMAQI
13th Aug 20266211 AMAQI
13th Aug 20265412 PMAQI
13th Aug 2026691 PMAQI
13th Aug 2026562 PMAQI
13th Aug 2026553 PMAQI
13th Aug 2026654 PMAQI
13th Aug 2026565 PMAQI
13th Aug 2026516 PMAQI
13th Aug 2026607 PMAQI
13th Aug 2026308 PMAQI
13th Aug 2026339 PMAQI
13th Aug 20265110 PMAQI
13th Aug 20264711 PMAQI
14th Aug 20265312 AMAQI
14th Aug 2026501 AMAQI
14th Aug 2026502 AMAQI
14th Aug 2026503 AMAQI
14th Aug 2026504 AMAQI

28°C27/28°C

14th Aug 2026425 AMAQI
5 AM
14th Aug 2026216 AMAQI
14th Aug 2026237 AMAQI
14th Aug 2026188 AMAQI
14th Aug 2026209 AMAQI
14th Aug 20261810 AMAQI
14th Aug 20262511 AMAQI
11 AM
14th Aug 20263612 PMAQI
14th Aug 2026361 PMAQI
14th Aug 2026252 PMAQI
14th Aug 2026253 PMAQI
14th Aug 2026324 PMAQI
14th Aug 2026445 PMAQI
14th Aug 2026256 PMAQI
6 PM
14th Aug 2026407 PMAQI
14th Aug 2026338 PMAQI
14th Aug 2026319 PMAQI
14th Aug 20262410 PMAQI
14th Aug 20262011 PMAQI
11 PM
4 AM

27°C27/28°C

Day time
Avg. Highest Time
1 PM - 6 PM

37AQI

6 hours / Day
180 hours / Month
Avg. Lowest Time
6 AM - 10 AM

35AQI

5 hours / Day
150 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 1 PM to 6 PM (Avg. 37), while the lowest AQI was between 6 AM to 10 AM (Avg. 35).
Night time
Avg. Highest Time
4 AM

38AQI

1 hours / Day
30 hours / Month
Avg. Lowest Time
12 AM - 3 AM

37AQI

4 hours / Day
120 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 4 AM to 4 AM (Avg. 38), while the lowest AQI was between 12 AM to 3 AM (Avg. 37).

2026 Days Vs Air Quality

Matsu, Nangan, Lienchiang, Taiwan

2026

50%

110

50%

111

0.4%

1

Total number of days with different AQI categories in last 226 days in 2026 (139 days remaining)

Good
110 Days
Moderate
111 Days
Poor
1 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 50%

Health Risk Level:

Considerable

In 2026, 50% of 226 days were within WHO’s safe air quality limits, and 50% exceeded them. The risk of health issues is Considerable, with potential for conditions in sensitive individuals.

Annual Air Quality Insights

Matsu, Nangan, Lienchiang, 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
49AQI (US)
2nd January 2026
37AQI (US)
3rd January 2026
82AQI (US)
4th January 2026
53AQI (US)
5th January 2026
61AQI (US)
6th January 2026
47AQI (US)
7th January 2026
76AQI (US)
8th January 2026
81AQI (US)
9th January 2026
92AQI (US)
10th January 2026
74AQI (US)
11th January 2026
78AQI (US)
12th January 2026
58AQI (US)
13th January 2026
63AQI (US)
14th January 2026
70AQI (US)
15th January 2026
61AQI (US)
16th January 2026
67AQI (US)
17th January 2026
78AQI (US)
18th January 2026
58AQI (US)
19th January 2026
57AQI (US)
20th January 2026
30AQI (US)
21st January 2026
44AQI (US)
22nd January 2026
77AQI (US)
23rd January 2026
70AQI (US)
24th January 2026
63AQI (US)
25th January 2026
81AQI (US)
26th January 2026
50AQI (US)
27th January 2026
37AQI (US)
28th January 2026
58AQI (US)
29th January 2026
48AQI (US)
30th January 2026
51AQI (US)
31st January 2026
28AQI (US)
1st February 2026
36AQI (US)
2nd February 2026
60AQI (US)
3rd February 2026
91AQI (US)
4th February 2026
55AQI (US)
5th February 2026
57AQI (US)
6th February 2026
71AQI (US)
7th February 2026
37AQI (US)
8th February 2026
68AQI (US)
9th February 2026
57AQI (US)
10th February 2026
43AQI (US)
11th February 2026
67AQI (US)
12th February 2026
106AQI (US)
13th February 2026
97AQI (US)
14th February 2026
75AQI (US)
15th February 2026
49AQI (US)
16th February 2026
52AQI (US)
17th February 2026
54AQI (US)
18th February 2026
77AQI (US)
19th February 2026
96AQI (US)
20th February 2026
98AQI (US)
21st February 2026
95AQI (US)
22nd February 2026
91AQI (US)
23rd February 2026
87AQI (US)
24th February 2026
95AQI (US)
25th February 2026
52AQI (US)
26th February 2026
53AQI (US)
27th February 2026
48AQI (US)
28th February 2026
36AQI (US)
1st March 2026
38AQI (US)
2nd March 2026
64AQI (US)
3rd March 2026
43AQI (US)
4th March 2026
51AQI (US)
5th March 2026
25AQI (US)
6th March 2026
53AQI (US)
7th March 2026
74AQI (US)
8th March 2026
52AQI (US)
9th March 2026
50AQI (US)
10th March 2026
62AQI (US)
11th March 2026
59AQI (US)
12th March 2026
63AQI (US)
13th March 2026
83AQI (US)
14th March 2026
65AQI (US)
15th March 2026
49AQI (US)
16th March 2026
44AQI (US)
17th March 2026
60AQI (US)
18th March 2026
72AQI (US)
19th March 2026
39AQI (US)
20th March 2026
70AQI (US)
21st March 2026
46AQI (US)
22nd March 2026
54AQI (US)
23rd March 2026
42AQI (US)
24th March 2026
31AQI (US)
25th March 2026
61AQI (US)
26th March 2026
64AQI (US)
27th March 2026
48AQI (US)
28th March 2026
51AQI (US)
29th March 2026
73AQI (US)
30th March 2026
66AQI (US)
31st March 2026
62AQI (US)
1st April 2026
14AQI (US)
2nd April 2026
34AQI (US)
3rd April 2026
51AQI (US)
4th April 2026
29AQI (US)
5th April 2026
52AQI (US)
6th April 2026
63AQI (US)
7th April 2026
59AQI (US)
8th April 2026
42AQI (US)
9th April 2026
67AQI (US)
10th April 2026
63AQI (US)
11th April 2026
63AQI (US)
12th April 2026
48AQI (US)
13th April 2026
75AQI (US)
14th April 2026
55AQI (US)
15th April 2026
59AQI (US)
16th April 2026
67AQI (US)
17th April 2026
18th April 2026
61AQI (US)
19th April 2026
57AQI (US)
20th April 2026
65AQI (US)
21st April 2026
46AQI (US)
22nd April 2026
23rd April 2026
41AQI (US)
24th April 2026
32AQI (US)
25th April 2026
56AQI (US)
26th April 2026
62AQI (US)
27th April 2026
64AQI (US)
28th April 2026
85AQI (US)
29th April 2026
40AQI (US)
30th April 2026
15AQI (US)
1st May 2026
51AQI (US)
2nd May 2026
61AQI (US)
3rd May 2026
62AQI (US)
4th May 2026
42AQI (US)
5th May 2026
38AQI (US)
6th May 2026
36AQI (US)
7th May 2026
41AQI (US)
8th May 2026
33AQI (US)
9th May 2026
10th May 2026
29AQI (US)
11th May 2026
42AQI (US)
12th May 2026
60AQI (US)
13th May 2026
55AQI (US)
14th May 2026
37AQI (US)
15th May 2026
16AQI (US)
16th May 2026
74AQI (US)
17th May 2026
60AQI (US)
18th May 2026
54AQI (US)
19th May 2026
45AQI (US)
20th May 2026
62AQI (US)
21st May 2026
68AQI (US)
22nd May 2026
74AQI (US)
23rd May 2026
68AQI (US)
24th May 2026
65AQI (US)
25th May 2026
57AQI (US)
26th May 2026
48AQI (US)
27th May 2026
64AQI (US)
28th May 2026
31AQI (US)
29th May 2026
74AQI (US)
30th May 2026
53AQI (US)
31st May 2026
42AQI (US)
1st June 2026
48AQI (US)
2nd June 2026
67AQI (US)
3rd June 2026
64AQI (US)
4th June 2026
55AQI (US)
5th June 2026
43AQI (US)
6th June 2026
60AQI (US)
7th June 2026
42AQI (US)
8th June 2026
16AQI (US)
9th June 2026
12AQI (US)
10th June 2026
24AQI (US)
11th June 2026
31AQI (US)
12th June 2026
53AQI (US)
13th June 2026
34AQI (US)
14th June 2026
22AQI (US)
15th June 2026
32AQI (US)
16th June 2026
31AQI (US)
17th June 2026
23AQI (US)
18th June 2026
22AQI (US)
19th June 2026
26AQI (US)
20th June 2026
34AQI (US)
21st June 2026
58AQI (US)
22nd June 2026
64AQI (US)
23rd June 2026
67AQI (US)
24th June 2026
39AQI (US)
25th June 2026
28AQI (US)
26th June 2026
27AQI (US)
27th June 2026
41AQI (US)
28th June 2026
55AQI (US)
29th June 2026
36AQI (US)
30th June 2026
23AQI (US)
1st July 2026
25AQI (US)
2nd July 2026
36AQI (US)
3rd July 2026
34AQI (US)
4th July 2026
31AQI (US)
5th July 2026
28AQI (US)
6th July 2026
32AQI (US)
7th July 2026
25AQI (US)
8th July 2026
37AQI (US)
9th July 2026
45AQI (US)
10th July 2026
24AQI (US)
11th July 2026
19AQI (US)
12th July 2026
37AQI (US)
13th July 2026
36AQI (US)
14th July 2026
23AQI (US)
15th July 2026
25AQI (US)
16th July 2026
27AQI (US)
17th July 2026
26AQI (US)
18th July 2026
29AQI (US)
19th July 2026
37AQI (US)
20th July 2026
34AQI (US)
21st July 2026
38AQI (US)
22nd July 2026
50AQI (US)
23rd July 2026
50AQI (US)
24th July 2026
42AQI (US)
25th July 2026
25AQI (US)
26th July 2026
32AQI (US)
27th July 2026
26AQI (US)
28th July 2026
28AQI (US)
29th July 2026
31AQI (US)
30th July 2026
29AQI (US)
31st July 2026
36AQI (US)
1st August 2026
51AQI (US)
2nd August 2026
33AQI (US)
3rd August 2026
44AQI (US)
4th August 2026
24AQI (US)
5th August 2026
27AQI (US)
6th August 2026
32AQI (US)
7th August 2026
51AQI (US)
8th August 2026
47AQI (US)
9th August 2026
23AQI (US)
10th August 2026
31AQI (US)
11th August 2026
49AQI (US)
12th August 2026
52AQI (US)
13th August 2026
58AQI (US)
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

61AQI (US)

68AQI (US)

55AQI (US)

52AQI (US)

51AQI (US)

39AQI (US)

32AQI (US)

40AQI (US)

No. of days

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

202650AQI (US)

9
22
6
21
1
11
20
10
18
13
17
21
9
31
9
4
110
111
1

Highest AQI (US) recorded in

February

68AQI (US)

Lowest AQI (US) recorded in

July

32AQI (US)

202563AQI (US)

26
5
1
21
6
2
29
1
29
1
30
22
8
24
7
20
11
16
14
8
23
8
22
4
26
1
107
246
12

Highest AQI (US) recorded in

January

84AQI (US)

Lowest AQI (US) recorded in

July

46AQI (US)

202461AQI (US)

2
17
11
1
12
13
4
3
25
3
4
23
3
14
17
20
9
24
7
9
22
24
6
14
17
14
16
28
3
140
200
24
1

Highest AQI (US) recorded in

January

92AQI (US)

Lowest AQI (US) recorded in

September

42AQI (US)

202356AQI (US)

2
25
4
15
7
5
25
1
1
24
5
12
17
2
14
16
28
3
20
11
26
4
18
13
9
19
1
5
24
2
155
188
15

Highest AQI (US) recorded in

April

80AQI (US)

Lowest AQI (US) recorded in

February

25AQI (US)

202259AQI (US)

5
17
8
12
8
3
4
24
2
1
2
26
2
15
15
1
30
15
10
1
2
5
24
20
11
14
16
10
20
1
133
173
17
1

Highest AQI (US) recorded in

January

81AQI (US)

Lowest AQI (US) recorded in

June

36AQI (US)

202160AQI (US)

2
21
6
5
15
8
30
1
1
27
2
8
22
1
9
21
25
6
30
1
19
11
19
12
11
19
3
25
3
132
210
21

Highest AQI (US) recorded in

January

81AQI (US)

Lowest AQI (US) recorded in

August

35AQI (US)

202056AQI (US)

4
7
2
3
13
5
5
13
24
6
29
2
24
7
11
19
3
28
9
19
2
2
24
5
114
138
14

Highest AQI (US) recorded in

April

82AQI (US)

Lowest AQI (US) recorded in

August

38AQI (US)

Most & Least Polluted Years Over the Last 7 Years

Most Polluted Year Recorded
2025(Avg.)
63AQI (US)
Least Polluted Year Recorded
2026(Avg.)
50AQI (US)

Matsu's annual 2026 AQI (US) (50) shows an average percentage change of -15.3% (improved AQI (US)) compared to previous years: 2020 (56), 2021 (60), 2022 (59), 2023 (56), 2024 (61), 2025 (63).