Country Background
HistoryAQIPM2.5PM10COSO2NO2O3

Tiantai County Environmental Protection Building, Linhai, Zhejiang, China 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

Tiantai County Environmental Protection Building, Linhai, Zhejiang, China

2024
2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
12th Aug 2024
87AQI
Lowest AQI recorded on
1st Aug 2024
42AQI

Same Day Analysis (3rd August ):
On this day, AQI across the 2 years varied significantly: 2025 ranks 1st highest AQI at 59 of Moderate air quality on the same day.

Download 2024 Annual Data

World Air Quality Report

Globe

Day & Night AQI Trend: 3rd Aug - 4th Aug 2025

Tiantai County Environmental Protection Building, Linhai, Zhejiang, China

AQI
Day
Night
.

5 AM3rd Aug 2025

6 PM

4 AM4th Aug 2025

Day time
Avg. Highest Time
9AM3rd Aug

66AQI

Avg. Lowest Time
7AM3rd Aug

57AQI

Night time
Avg. Highest Time
9PM3rd Aug

59AQI

Avg. Lowest Time
1AM4th Aug

54AQI

In the last 24 hours,

Tiantai County Environmental Protection Building's AQI reached its highest point of 66 at 9 AM during the Day, while the lowest point, 54, was recorded at 1 AM during the Night between 3rd Aug and 4th Aug 2025.

Day & Night AQI Trend : Jul - Aug 2025

Tiantai County Environmental Protection Building, Linhai, Zhejiang, China

JulAug
05th - 06th06th - 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
Day
Night
5th Jul 2025525 AMAQI
5th Jul 2025526 AMAQI
5th Jul 2025527 AMAQI
5th Jul 2025548 AMAQI
5th Jul 2025499 AMAQI
5th Jul 20254910 AMAQI
5th Jul 20255211 AMAQI
5th Jul 20255412 PMAQI
5th Jul 2025531 PMAQI
5th Jul 2025502 PMAQI
5th Jul 2025433 PMAQI
5th Jul 2025444 PMAQI
5th Jul 2025475 PMAQI
5th Jul 2025456 PMAQI
5th Jul 2025447 PMAQI
5th Jul 2025508 PMAQI
5th Jul 2025509 PMAQI
5th Jul 20254510 PMAQI
5th Jul 20254611 PMAQI
6th Jul 20255112 AMAQI
6th Jul 2025521 AMAQI
6th Jul 2025522 AMAQI
6th Jul 2025513 AMAQI
6th Jul 2025534 AMAQI

28°C22/35°C

6th Jul 2025525 AMAQI
6th Jul 2025526 AMAQI
6th Jul 2025527 AMAQI
6th Jul 2025448 AMAQI
6th Jul 2025359 AMAQI
6th Jul 20253010 AMAQI
6th Jul 20253511 AMAQI
6th Jul 20253612 PMAQI
6th Jul 2025361 PMAQI
6th Jul 2025372 PMAQI
6th Jul 2025353 PMAQI
6th Jul 2025344 PMAQI
6th Jul 2025345 PMAQI
6th Jul 2025346 PMAQI
6th Jul 2025387 PMAQI
6th Jul 2025488 PMAQI
6th Jul 2025509 PMAQI
6th Jul 20255110 PMAQI
6th Jul 20255011 PMAQI
7th Jul 20255112 AMAQI
7th Jul 2025501 AMAQI
7th Jul 2025522 AMAQI
7th Jul 2025523 AMAQI
7th Jul 2025524 AMAQI

28°C22/35°C

7th Jul 2025505 AMAQI
7th Jul 2025516 AMAQI
7th Jul 2025527 AMAQI
7th Jul 2025338 AMAQI
7th Jul 2025299 AMAQI
7th Jul 20252910 AMAQI
7th Jul 20252811 AMAQI
7th Jul 20253012 PMAQI
7th Jul 2025351 PMAQI
7th Jul 2025312 PMAQI
7th Jul 2025343 PMAQI
7th Jul 2025274 PMAQI
7th Jul 2025245 PMAQI
7th Jul 2025246 PMAQI
7th Jul 2025327 PMAQI
7th Jul 2025428 PMAQI
7th Jul 2025439 PMAQI
7th Jul 20254310 PMAQI
7th Jul 20254211 PMAQI
8th Jul 20254312 AMAQI
8th Jul 2025521 AMAQI
8th Jul 2025522 AMAQI
8th Jul 2025523 AMAQI
8th Jul 2025524 AMAQI

26°C21/31°C

8th Jul 2025525 AMAQI
8th Jul 2025526 AMAQI
8th Jul 2025527 AMAQI
8th Jul 2025408 AMAQI
8th Jul 2025359 AMAQI
8th Jul 20253710 AMAQI
8th Jul 20253811 AMAQI
8th Jul 20253812 PMAQI
8th Jul 2025381 PMAQI
8th Jul 2025372 PMAQI
8th Jul 2025363 PMAQI
8th Jul 2025354 PMAQI
8th Jul 2025375 PMAQI
8th Jul 2025446 PMAQI
8th Jul 2025517 PMAQI
8th Jul 2025488 PMAQI
8th Jul 2025439 PMAQI
8th Jul 20254110 PMAQI
8th Jul 20254011 PMAQI
9th Jul 20254012 AMAQI
9th Jul 2025521 AMAQI
9th Jul 2025532 AMAQI
9th Jul 2025503 AMAQI
9th Jul 2025514 AMAQI

25°C22/26°C

9th Jul 2025525 AMAQI
9th Jul 2025516 AMAQI
9th Jul 2025517 AMAQI
9th Jul 2025388 AMAQI
9th Jul 2025349 AMAQI
9th Jul 20253410 AMAQI
9th Jul 20253611 AMAQI
9th Jul 20254312 PMAQI
9th Jul 2025441 PMAQI
9th Jul 2025412 PMAQI
9th Jul 2025413 PMAQI
9th Jul 2025404 PMAQI
9th Jul 2025355 PMAQI
9th Jul 2025386 PMAQI
9th Jul 2025417 PMAQI
9th Jul 2025468 PMAQI
9th Jul 2025449 PMAQI
9th Jul 20254310 PMAQI
9th Jul 20254211 PMAQI
10th Jul 20254112 AMAQI
10th Jul 2025441 AMAQI
10th Jul 2025522 AMAQI
10th Jul 2025503 AMAQI
10th Jul 2025494 AMAQI

25°C20/29°C

10th Jul 2025495 AMAQI
10th Jul 2025486 AMAQI
10th Jul 2025507 AMAQI
10th Jul 2025418 AMAQI
10th Jul 2025349 AMAQI
10th Jul 20253210 AMAQI
10th Jul 20253711 AMAQI
10th Jul 20254812 PMAQI
10th Jul 2025501 PMAQI
10th Jul 2025562 PMAQI
10th Jul 2025553 PMAQI
10th Jul 2025554 PMAQI
10th Jul 2025565 PMAQI
10th Jul 2025566 PMAQI
10th Jul 2025577 PMAQI
10th Jul 2025558 PMAQI
10th Jul 2025559 PMAQI
10th Jul 20255310 PMAQI
10th Jul 20255311 PMAQI
11th Jul 20255212 AMAQI
11th Jul 2025501 AMAQI
11th Jul 2025502 AMAQI
11th Jul 2025513 AMAQI
11th Jul 2025524 AMAQI

25°C21/31°C

11th Jul 2025545 AMAQI
11th Jul 2025526 AMAQI
11th Jul 2025537 AMAQI
11th Jul 2025408 AMAQI
11th Jul 2025419 AMAQI
11th Jul 20253910 AMAQI
11th Jul 20253411 AMAQI
11th Jul 20254012 PMAQI
11th Jul 2025401 PMAQI
11th Jul 2025412 PMAQI
11th Jul 2025413 PMAQI
11th Jul 2025394 PMAQI
11th Jul 2025395 PMAQI
11th Jul 2025366 PMAQI
11th Jul 2025387 PMAQI
11th Jul 2025428 PMAQI
11th Jul 2025449 PMAQI
11th Jul 20254510 PMAQI
11th Jul 20254711 PMAQI
12th Jul 20254712 AMAQI
12th Jul 2025521 AMAQI
12th Jul 2025512 AMAQI
12th Jul 2025523 AMAQI
12th Jul 2025524 AMAQI

25°C21/31°C

12th Jul 2025525 AMAQI
12th Jul 2025526 AMAQI
12th Jul 2025527 AMAQI
12th Jul 2025468 AMAQI
12th Jul 2025439 AMAQI
12th Jul 20254210 AMAQI
12th Jul 20254311 AMAQI
12th Jul 20254912 PMAQI
12th Jul 2025501 PMAQI
12th Jul 2025392 PMAQI
12th Jul 2025383 PMAQI
12th Jul 2025404 PMAQI
12th Jul 2025425 PMAQI
12th Jul 2025446 PMAQI
12th Jul 2025437 PMAQI
12th Jul 2025458 PMAQI
12th Jul 2025449 PMAQI
12th Jul 20254410 PMAQI
12th Jul 20254611 PMAQI
13th Jul 20254612 AMAQI
13th Jul 2025531 AMAQI
13th Jul 2025522 AMAQI
13th Jul 2025523 AMAQI
13th Jul 2025524 AMAQI

26°C21/32°C

13th Jul 2025525 AMAQI
13th Jul 2025526 AMAQI
13th Jul 2025527 AMAQI
13th Jul 2025488 AMAQI
13th Jul 2025459 AMAQI
13th Jul 20254810 AMAQI
13th Jul 20255211 AMAQI
13th Jul 20255412 PMAQI
13th Jul 2025551 PMAQI
13th Jul 2025552 PMAQI
13th Jul 2025533 PMAQI
13th Jul 2025464 PMAQI
13th Jul 2025485 PMAQI
13th Jul 2025516 PMAQI
13th Jul 2025547 PMAQI
13th Jul 2025548 PMAQI
13th Jul 2025549 PMAQI
13th Jul 20255410 PMAQI
13th Jul 20255511 PMAQI
14th Jul 20255412 AMAQI
14th Jul 2025521 AMAQI
14th Jul 2025522 AMAQI
14th Jul 2025523 AMAQI
14th Jul 2025524 AMAQI

25°C21/30°C

14th Jul 2025525 AMAQI
14th Jul 2025526 AMAQI
14th Jul 2025527 AMAQI
14th Jul 2025598 AMAQI
14th Jul 2025589 AMAQI
14th Jul 20256010 AMAQI
14th Jul 20256011 AMAQI
14th Jul 20256112 PMAQI
14th Jul 2025621 PMAQI
14th Jul 2025612 PMAQI
14th Jul 2025553 PMAQI
14th Jul 2025564 PMAQI
14th Jul 2025555 PMAQI
14th Jul 2025586 PMAQI
14th Jul 2025597 PMAQI
14th Jul 2025598 PMAQI
14th Jul 2025599 PMAQI
14th Jul 20255810 PMAQI
14th Jul 20255711 PMAQI
15th Jul 20255612 AMAQI
15th Jul 2025551 AMAQI
15th Jul 2025542 AMAQI
15th Jul 2025553 AMAQI
15th Jul 2025574 AMAQI

27°C21/33°C

15th Jul 2025575 AMAQI
15th Jul 2025576 AMAQI
15th Jul 2025577 AMAQI
15th Jul 2025628 AMAQI
15th Jul 2025679 AMAQI
15th Jul 20256410 AMAQI
15th Jul 20256611 AMAQI
15th Jul 20256212 PMAQI
15th Jul 2025691 PMAQI
15th Jul 2025672 PMAQI
15th Jul 2025623 PMAQI
15th Jul 2025654 PMAQI
15th Jul 2025625 PMAQI
15th Jul 2025656 PMAQI
15th Jul 2025647 PMAQI
15th Jul 2025608 PMAQI
15th Jul 2025629 PMAQI
15th Jul 20256310 PMAQI
15th Jul 20256211 PMAQI
16th Jul 20256012 AMAQI
16th Jul 2025541 AMAQI
16th Jul 2025542 AMAQI
16th Jul 2025563 AMAQI
16th Jul 2025584 AMAQI

27°C21/35°C

16th Jul 2025585 AMAQI
16th Jul 2025586 AMAQI
16th Jul 2025587 AMAQI
16th Jul 2025608 AMAQI
16th Jul 2025599 AMAQI
16th Jul 20255810 AMAQI
16th Jul 20255811 AMAQI
16th Jul 20256212 PMAQI
16th Jul 2025661 PMAQI
16th Jul 2025662 PMAQI
16th Jul 2025653 PMAQI
16th Jul 2025674 PMAQI
16th Jul 2025665 PMAQI
16th Jul 2025646 PMAQI
16th Jul 2025647 PMAQI
16th Jul 2025628 PMAQI
16th Jul 2025619 PMAQI
16th Jul 20255910 PMAQI
16th Jul 20256011 PMAQI
17th Jul 20256012 AMAQI
17th Jul 2025581 AMAQI
17th Jul 2025592 AMAQI
17th Jul 2025593 AMAQI
17th Jul 2025594 AMAQI

29°C23/37°C

17th Jul 2025585 AMAQI
17th Jul 2025596 AMAQI
17th Jul 2025607 AMAQI
17th Jul 2025588 AMAQI
17th Jul 2025569 AMAQI
17th Jul 20255410 AMAQI
17th Jul 20255611 AMAQI
17th Jul 20256012 PMAQI
17th Jul 2025631 PMAQI
17th Jul 2025622 PMAQI
17th Jul 2025603 PMAQI
17th Jul 2025594 PMAQI
17th Jul 2025545 PMAQI
17th Jul 2025526 PMAQI
17th Jul 2025567 PMAQI
17th Jul 2025588 PMAQI
17th Jul 2025589 PMAQI
17th Jul 20256010 PMAQI
17th Jul 20255911 PMAQI
18th Jul 20256012 AMAQI
18th Jul 2025601 AMAQI
18th Jul 2025602 AMAQI
18th Jul 2025603 AMAQI
18th Jul 2025584 AMAQI

27°C22/33°C

18th Jul 2025595 AMAQI
18th Jul 2025606 AMAQI
18th Jul 2025597 AMAQI
18th Jul 2025578 AMAQI
18th Jul 2025559 AMAQI
18th Jul 20255510 AMAQI
18th Jul 20255611 AMAQI
18th Jul 20255612 PMAQI
18th Jul 2025561 PMAQI
18th Jul 2025562 PMAQI
18th Jul 2025633 PMAQI
18th Jul 2025694 PMAQI
18th Jul 2025555 PMAQI
18th Jul 2025486 PMAQI
18th Jul 2025487 PMAQI
18th Jul 2025528 PMAQI
18th Jul 2025539 PMAQI
18th Jul 20255210 PMAQI
18th Jul 20255211 PMAQI
19th Jul 20255312 AMAQI
19th Jul 2025591 AMAQI
19th Jul 2025592 AMAQI
19th Jul 2025583 AMAQI
19th Jul 2025594 AMAQI

26°C21/33°C

19th Jul 2025585 AMAQI
19th Jul 2025586 AMAQI
19th Jul 2025587 AMAQI
19th Jul 2025378 AMAQI
19th Jul 2025249 AMAQI
19th Jul 20252610 AMAQI
19th Jul 20252711 AMAQI
19th Jul 20252912 PMAQI
19th Jul 2025311 PMAQI
19th Jul 2025322 PMAQI
19th Jul 2025333 PMAQI
19th Jul 2025274 PMAQI
19th Jul 2025255 PMAQI
19th Jul 2025266 PMAQI
19th Jul 2025367 PMAQI
19th Jul 2025528 PMAQI
19th Jul 2025529 PMAQI
19th Jul 20255210 PMAQI
19th Jul 20255211 PMAQI
20th Jul 20255312 AMAQI
20th Jul 2025581 AMAQI
20th Jul 2025582 AMAQI
20th Jul 2025563 AMAQI
20th Jul 2025554 AMAQI

24°C21/28°C

20th Jul 2025545 AMAQI
20th Jul 2025556 AMAQI
20th Jul 2025557 AMAQI
20th Jul 2025498 AMAQI
20th Jul 2025319 AMAQI
20th Jul 20252510 AMAQI
20th Jul 20252411 AMAQI
20th Jul 20252912 PMAQI
20th Jul 2025341 PMAQI
20th Jul 2025302 PMAQI
20th Jul 2025283 PMAQI
20th Jul 2025304 PMAQI
20th Jul 2025315 PMAQI
20th Jul 2025326 PMAQI
20th Jul 2025397 PMAQI
20th Jul 2025488 PMAQI
20th Jul 2025479 PMAQI
20th Jul 20254710 PMAQI
20th Jul 20254611 PMAQI
21st Jul 20254712 AMAQI
21st Jul 2025551 AMAQI
21st Jul 2025552 AMAQI
21st Jul 2025543 AMAQI
21st Jul 2025534 AMAQI

26°C22/29°C

21st Jul 2025535 AMAQI
21st Jul 2025536 AMAQI
21st Jul 2025537 AMAQI
21st Jul 2025318 AMAQI
21st Jul 2025239 AMAQI
21st Jul 20251910 AMAQI
21st Jul 20252211 AMAQI
21st Jul 20252212 PMAQI
21st Jul 2025241 PMAQI
21st Jul 2025212 PMAQI
21st Jul 2025213 PMAQI
21st Jul 2025204 PMAQI
21st Jul 2025235 PMAQI
21st Jul 2025196 PMAQI
21st Jul 2025327 PMAQI
21st Jul 2025438 PMAQI
21st Jul 2025429 PMAQI
21st Jul 20254310 PMAQI
21st Jul 20254511 PMAQI
22nd Jul 20254412 AMAQI
22nd Jul 2025531 AMAQI
22nd Jul 2025542 AMAQI
22nd Jul 2025533 AMAQI
22nd Jul 2025514 AMAQI

25°C21/28°C

22nd Jul 2025525 AMAQI
22nd Jul 2025516 AMAQI
22nd Jul 2025517 AMAQI
22nd Jul 2025308 AMAQI
22nd Jul 2025269 AMAQI
22nd Jul 20252610 AMAQI
22nd Jul 20253011 AMAQI
22nd Jul 20252612 PMAQI
22nd Jul 2025261 PMAQI
22nd Jul 2025262 PMAQI
22nd Jul 2025293 PMAQI
22nd Jul 2025304 PMAQI
22nd Jul 2025295 PMAQI
22nd Jul 2025326 PMAQI
22nd Jul 2025387 PMAQI
22nd Jul 2025458 PMAQI
22nd Jul 2025449 PMAQI
22nd Jul 20254210 PMAQI
22nd Jul 20254311 PMAQI
23rd Jul 20254512 AMAQI
23rd Jul 2025511 AMAQI
23rd Jul 2025522 AMAQI
23rd Jul 2025503 AMAQI
23rd Jul 2025504 AMAQI

25°C21/29°C

23rd Jul 2025495 AMAQI
23rd Jul 2025486 AMAQI
23rd Jul 2025497 AMAQI
23rd Jul 2025348 AMAQI
23rd Jul 2025309 AMAQI
23rd Jul 20252910 AMAQI
23rd Jul 20252611 AMAQI
23rd Jul 20252812 PMAQI
23rd Jul 2025321 PMAQI
23rd Jul 2025302 PMAQI
23rd Jul 2025273 PMAQI
23rd Jul 2025324 PMAQI
23rd Jul 2025325 PMAQI
23rd Jul 2025336 PMAQI
23rd Jul 2025387 PMAQI
23rd Jul 2025418 PMAQI
23rd Jul 2025429 PMAQI
23rd Jul 20254110 PMAQI
23rd Jul 20253911 PMAQI
24th Jul 20254312 AMAQI
24th Jul 2025431 AMAQI
24th Jul 2025492 AMAQI
24th Jul 2025503 AMAQI
24th Jul 2025484 AMAQI

26°C22/31°C

24th Jul 2025465 AMAQI
24th Jul 2025476 AMAQI
24th Jul 2025487 AMAQI
24th Jul 2025368 AMAQI
24th Jul 2025329 AMAQI
24th Jul 20253110 AMAQI
24th Jul 20253111 AMAQI
24th Jul 20253412 PMAQI
24th Jul 2025331 PMAQI
24th Jul 2025322 PMAQI
24th Jul 2025343 PMAQI
24th Jul 2025334 PMAQI
24th Jul 2025315 PMAQI
24th Jul 2025356 PMAQI
24th Jul 2025407 PMAQI
24th Jul 2025438 PMAQI
24th Jul 2025499 PMAQI
24th Jul 20254910 PMAQI
24th Jul 20254511 PMAQI
25th Jul 20254612 AMAQI
25th Jul 2025481 AMAQI
25th Jul 2025482 AMAQI
25th Jul 2025473 AMAQI
25th Jul 2025464 AMAQI

26°C21/30°C

25th Jul 2025465 AMAQI
25th Jul 2025466 AMAQI
25th Jul 2025457 AMAQI
25th Jul 2025378 AMAQI
25th Jul 2025379 AMAQI
25th Jul 20254210 AMAQI
25th Jul 20254211 AMAQI
25th Jul 20254412 PMAQI
25th Jul 2025401 PMAQI
25th Jul 2025382 PMAQI
25th Jul 2025353 PMAQI
25th Jul 2025334 PMAQI
25th Jul 2025305 PMAQI
25th Jul 2025306 PMAQI
25th Jul 2025367 PMAQI
25th Jul 2025348 PMAQI
25th Jul 2025389 PMAQI
25th Jul 20253410 PMAQI
25th Jul 20253211 PMAQI
26th Jul 20253412 AMAQI
26th Jul 2025441 AMAQI
26th Jul 2025472 AMAQI
26th Jul 2025483 AMAQI
26th Jul 2025464 AMAQI

24°C21/27°C

26th Jul 2025465 AMAQI
26th Jul 2025466 AMAQI
26th Jul 2025467 AMAQI
26th Jul 2025348 AMAQI
26th Jul 2025289 AMAQI
26th Jul 20252610 AMAQI
26th Jul 20252611 AMAQI
26th Jul 20252812 PMAQI
26th Jul 2025241 PMAQI
26th Jul 2025272 PMAQI
26th Jul 2025283 PMAQI
26th Jul 2025284 PMAQI
26th Jul 2025295 PMAQI
26th Jul 2025316 PMAQI
26th Jul 2025327 PMAQI
26th Jul 2025378 PMAQI
26th Jul 2025379 PMAQI
26th Jul 20253910 PMAQI
26th Jul 20253911 PMAQI
27th Jul 20253912 AMAQI
27th Jul 2025441 AMAQI
27th Jul 2025442 AMAQI
27th Jul 2025443 AMAQI
27th Jul 2025434 AMAQI

26°C22/31°C

27th Jul 2025435 AMAQI
27th Jul 2025436 AMAQI
27th Jul 2025447 AMAQI
27th Jul 2025418 AMAQI
27th Jul 2025429 AMAQI
27th Jul 20254410 AMAQI
27th Jul 20254111 AMAQI
27th Jul 20253812 PMAQI
27th Jul 2025361 PMAQI
27th Jul 2025332 PMAQI
27th Jul 2025343 PMAQI
27th Jul 2025354 PMAQI
27th Jul 2025365 PMAQI
27th Jul 2025416 PMAQI
27th Jul 2025477 PMAQI
27th Jul 2025468 PMAQI
27th Jul 2025409 PMAQI
27th Jul 20253910 PMAQI
27th Jul 20254111 PMAQI
28th Jul 20254012 AMAQI
28th Jul 2025441 AMAQI
28th Jul 2025462 AMAQI
28th Jul 2025453 AMAQI
28th Jul 2025444 AMAQI

26°C21/32°C

28th Jul 2025425 AMAQI
28th Jul 2025436 AMAQI
28th Jul 2025427 AMAQI
28th Jul 2025358 AMAQI
28th Jul 2025369 AMAQI
28th Jul 20253610 AMAQI
28th Jul 20253311 AMAQI
28th Jul 20253412 PMAQI
28th Jul 2025321 PMAQI
28th Jul 2025302 PMAQI
28th Jul 2025283 PMAQI
28th Jul 2025264 PMAQI
28th Jul 2025285 PMAQI
28th Jul 2025286 PMAQI
28th Jul 2025327 PMAQI
28th Jul 2025368 PMAQI
28th Jul 2025329 PMAQI
28th Jul 20253410 PMAQI
28th Jul 20253611 PMAQI
29th Jul 20253712 AMAQI
29th Jul 2025431 AMAQI
29th Jul 2025442 AMAQI
29th Jul 2025423 AMAQI
29th Jul 2025414 AMAQI

25°C22/29°C

29th Jul 2025425 AMAQI
29th Jul 2025416 AMAQI
29th Jul 2025417 AMAQI
29th Jul 2025328 AMAQI
29th Jul 2025379 AMAQI
29th Jul 20254610 AMAQI
29th Jul 20254311 AMAQI
29th Jul 20253712 PMAQI
29th Jul 2025401 PMAQI
29th Jul 2025382 PMAQI
29th Jul 2025363 PMAQI
29th Jul 2025364 PMAQI
29th Jul 2025355 PMAQI
29th Jul 2025306 PMAQI
29th Jul 2025367 PMAQI
29th Jul 2025418 PMAQI
29th Jul 2025429 PMAQI
29th Jul 20254010 PMAQI
29th Jul 20254011 PMAQI
30th Jul 20254012 AMAQI
30th Jul 2025431 AMAQI
30th Jul 2025442 AMAQI
30th Jul 2025443 AMAQI
30th Jul 2025444 AMAQI

25°C21/31°C

30th Jul 2025445 AMAQI
30th Jul 2025446 AMAQI
30th Jul 2025437 AMAQI
30th Jul 2025408 AMAQI
30th Jul 2025459 AMAQI
30th Jul 20254110 AMAQI
30th Jul 20254211 AMAQI
30th Jul 20254212 PMAQI
30th Jul 2025411 PMAQI
30th Jul 2025392 PMAQI
30th Jul 2025383 PMAQI
30th Jul 2025364 PMAQI
30th Jul 2025405 PMAQI
30th Jul 2025396 PMAQI
30th Jul 2025437 PMAQI
30th Jul 2025408 PMAQI
30th Jul 2025389 PMAQI
30th Jul 20253610 PMAQI
30th Jul 20253411 PMAQI
31st Jul 20253712 AMAQI
31st Jul 2025391 AMAQI
31st Jul 2025402 AMAQI
31st Jul 2025423 AMAQI
31st Jul 2025424 AMAQI

24°C21/28°C

31st Jul 2025425 AMAQI
31st Jul 2025426 AMAQI
31st Jul 2025427 AMAQI
31st Jul 2025428 AMAQI
31st Jul 2025429 AMAQI
31st Jul 20253810 AMAQI
31st Jul 20253011 AMAQI
31st Jul 20252912 PMAQI
31st Jul 2025331 PMAQI
31st Jul 2025332 PMAQI
31st Jul 2025383 PMAQI
31st Jul 2025384 PMAQI
31st Jul 2025405 PMAQI
31st Jul 2025486 PMAQI
31st Jul 2025527 PMAQI
31st Jul 2025558 PMAQI
31st Jul 2025549 PMAQI
31st Jul 20255510 PMAQI
31st Jul 20255511 PMAQI
1st Aug 20255512 AMAQI
1st Aug 2025531 AMAQI
1st Aug 2025542 AMAQI
1st Aug 2025423 AMAQI
1st Aug 2025424 AMAQI

27°C23/34°C

1st Aug 2025435 AMAQI
1st Aug 2025486 AMAQI
1st Aug 2025557 AMAQI
1st Aug 2025588 AMAQI
1st Aug 2025629 AMAQI
1st Aug 20256310 AMAQI
1st Aug 20256111 AMAQI
1st Aug 20256312 PMAQI
1st Aug 2025561 PMAQI
1st Aug 2025522 PMAQI
1st Aug 2025553 PMAQI
1st Aug 2025554 PMAQI
1st Aug 2025565 PMAQI
1st Aug 2025556 PMAQI
1st Aug 2025587 PMAQI
1st Aug 2025588 PMAQI
1st Aug 2025599 PMAQI
1st Aug 20255910 PMAQI
1st Aug 20255911 PMAQI
2nd Aug 20255612 AMAQI
2nd Aug 2025531 AMAQI
2nd Aug 2025512 AMAQI
2nd Aug 2025543 AMAQI
2nd Aug 2025604 AMAQI

28°C22/35°C

2nd Aug 2025585 AMAQI
2nd Aug 2025576 AMAQI
2nd Aug 2025567 AMAQI
2nd Aug 2025658 AMAQI
2nd Aug 2025669 AMAQI
2nd Aug 20256410 AMAQI
2nd Aug 20256111 AMAQI
2nd Aug 20256612 PMAQI
2nd Aug 2025691 PMAQI
2nd Aug 2025662 PMAQI
2nd Aug 2025633 PMAQI
2nd Aug 2025634 PMAQI
2nd Aug 2025665 PMAQI
2nd Aug 2025626 PMAQI
2nd Aug 2025567 PMAQI
2nd Aug 2025588 PMAQI
2nd Aug 2025589 PMAQI
2nd Aug 20255910 PMAQI
2nd Aug 20256111 PMAQI
3rd Aug 20255612 AMAQI
3rd Aug 2025531 AMAQI
3rd Aug 2025532 AMAQI
3rd Aug 2025563 AMAQI
3rd Aug 2025574 AMAQI

28°C23/35°C

3rd Aug 2025585 AMAQI
3rd Aug 2025576 AMAQI
3rd Aug 2025577 AMAQI
3rd Aug 2025638 AMAQI
3rd Aug 2025669 AMAQI
3rd Aug 20256410 AMAQI
3rd Aug 20256311 AMAQI
3rd Aug 20256312 PMAQI
3rd Aug 2025651 PMAQI
3rd Aug 2025582 PMAQI
3rd Aug 2025613 PMAQI
3rd Aug 2025614 PMAQI
3rd Aug 2025605 PMAQI
3rd Aug 2025596 PMAQI
3rd Aug 2025567 PMAQI
3rd Aug 2025588 PMAQI
3rd Aug 2025599 PMAQI
3rd Aug 20255810 PMAQI
3rd Aug 20255811 PMAQI
4th Aug 20255612 AMAQI
4th Aug 2025541 AMAQI
4th Aug 2025552 AMAQI
4th Aug 2025563 AMAQI
4th Aug 2025564 AMAQI

28°C22/34°C

4th Aug 2025565 AMAQI
5 AM
4th Aug 2025566 AMAQI
4th Aug 2025567 AMAQI
4th Aug 2025578 AMAQI
4th Aug 2025649 AMAQI
4th Aug 20257110 AMAQI
4th Aug 20256311 AMAQI
11 AM
4th Aug 20255912 PMAQI
4th Aug 2025611 PMAQI
4th Aug 2025572 PMAQI
4th Aug 2025663 PMAQI
4th Aug 2025584 PMAQI
4th Aug 2025555 PMAQI
4th Aug 2025546 PMAQI
6 PM
4th Aug 2025557 PMAQI
4th Aug 2025528 PMAQI
4th Aug 2025529 PMAQI
4th Aug 20255410 PMAQI
4th Aug 20255311 PMAQI
11 PM
4 AM

--°C/°C

Day time
Avg. Highest Time
5 AM - 7 AM

51AQI

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

43AQI

11 hours / Day
330 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 7 AM (Avg. 51), while the lowest AQI was between 8 AM to 6 PM (Avg. 43).
Night time
Avg. Highest Time
1 AM - 4 AM

51AQI

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

46AQI

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. 51), while the lowest AQI was between 7 PM to 7 PM (Avg. 46).

2025 Days Vs Air Quality

Tiantai County Environmental Protection Building, Linhai, Zhejiang, China

2025

15%

32

70%

150

15%

33

Total number of days with different AQI categories in last 216 days in 2025 (149 days remaining)

Good
32 Days
Moderate
150 Days
Poor
33 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 15%

Health Risk Level:

Extreme

In 2025, 15% of 216 days were within WHO’s safe air quality limits. The risk of health issues is Extreme, potentially causing respiratory problems, heart disease, skin issues, and stress, especially for children, the elderly, and those with pre-existing conditions.

Annual Air Quality Insights

Tiantai County Environmental Protection Building, Linhai, Zhejiang, China

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
118AQI
2nd January 2025
104AQI
3rd January 2025
111AQI
4th January 2025
94AQI
5th January 2025
127AQI
6th January 2025
122AQI
7th January 2025
146AQI
8th January 2025
145AQI
9th January 2025
99AQI
10th January 2025
94AQI
11th January 2025
98AQI
12th January 2025
105AQI
13th January 2025
124AQI
14th January 2025
116AQI
15th January 2025
112AQI
16th January 2025
92AQI
17th January 2025
109AQI
18th January 2025
109AQI
19th January 2025
108AQI
20th January 2025
131AQI
21st January 2025
146AQI
22nd January 2025
116AQI
23rd January 2025
107AQI
24th January 2025
97AQI
25th January 2025
93AQI
26th January 2025
70AQI
27th January 2025
66AQI
28th January 2025
78AQI
29th January 2025
119AQI
30th January 2025
95AQI
31st January 2025
102AQI
1st February 2025
55AQI
2nd February 2025
74AQI
3rd February 2025
114AQI
4th February 2025
100AQI
5th February 2025
89AQI
6th February 2025
100AQI
7th February 2025
78AQI
8th February 2025
65AQI
9th February 2025
77AQI
10th February 2025
88AQI
11th February 2025
77AQI
12th February 2025
100AQI
13th February 2025
119AQI
14th February 2025
87AQI
15th February 2025
107AQI
16th February 2025
94AQI
17th February 2025
101AQI
18th February 2025
76AQI
19th February 2025
92AQI
20th February 2025
71AQI
21st February 2025
68AQI
22nd February 2025
70AQI
23rd February 2025
98AQI
24th February 2025
126AQI
25th February 2025
136AQI
26th February 2025
138AQI
27th February 2025
135AQI
28th February 2025
104AQI
1st March 2025
93AQI
2nd March 2025
83AQI
3rd March 2025
78AQI
4th March 2025
52AQI
5th March 2025
69AQI
6th March 2025
65AQI
7th March 2025
84AQI
8th March 2025
105AQI
9th March 2025
89AQI
10th March 2025
89AQI
11th March 2025
100AQI
12th March 2025
86AQI
13th March 2025
71AQI
14th March 2025
68AQI
15th March 2025
41AQI
16th March 2025
77AQI
17th March 2025
66AQI
18th March 2025
76AQI
19th March 2025
84AQI
20th March 2025
85AQI
21st March 2025
78AQI
22nd March 2025
81AQI
23rd March 2025
84AQI
24th March 2025
92AQI
25th March 2025
98AQI
26th March 2025
116AQI
27th March 2025
107AQI
28th March 2025
85AQI
29th March 2025
81AQI
30th March 2025
73AQI
31st March 2025
67AQI
1st April 2025
74AQI
2nd April 2025
75AQI
3rd April 2025
102AQI
4th April 2025
81AQI
5th April 2025
86AQI
6th April 2025
90AQI
7th April 2025
90AQI
8th April 2025
91AQI
9th April 2025
92AQI
10th April 2025
77AQI
11th April 2025
83AQI
12th April 2025
97AQI
13th April 2025
89AQI
14th April 2025
100AQI
15th April 2025
76AQI
16th April 2025
82AQI
17th April 2025
91AQI
18th April 2025
90AQI
19th April 2025
83AQI
20th April 2025
95AQI
21st April 2025
80AQI
22nd April 2025
67AQI
23rd April 2025
60AQI
24th April 2025
67AQI
25th April 2025
64AQI
26th April 2025
65AQI
27th April 2025
69AQI
28th April 2025
71AQI
29th April 2025
71AQI
30th April 2025
74AQI
1st May 2025
75AQI
2nd May 2025
73AQI
3rd May 2025
79AQI
4th May 2025
66AQI
5th May 2025
69AQI
6th May 2025
81AQI
7th May 2025
88AQI
8th May 2025
70AQI
9th May 2025
66AQI
10th May 2025
66AQI
11th May 2025
69AQI
12th May 2025
73AQI
13th May 2025
71AQI
14th May 2025
68AQI
15th May 2025
73AQI
16th May 2025
67AQI
17th May 2025
77AQI
18th May 2025
68AQI
19th May 2025
62AQI
20th May 2025
60AQI
21st May 2025
53AQI
22nd May 2025
60AQI
23rd May 2025
54AQI
24th May 2025
75AQI
25th May 2025
85AQI
26th May 2025
76AQI
27th May 2025
71AQI
28th May 2025
67AQI
29th May 2025
59AQI
30th May 2025
69AQI
31st May 2025
71AQI
1st June 2025
62AQI
2nd June 2025
57AQI
3rd June 2025
55AQI
4th June 2025
65AQI
5th June 2025
55AQI
6th June 2025
66AQI
7th June 2025
67AQI
8th June 2025
58AQI
9th June 2025
60AQI
10th June 2025
57AQI
11th June 2025
43AQI
12th June 2025
52AQI
13th June 2025
47AQI
14th June 2025
49AQI
15th June 2025
41AQI
16th June 2025
46AQI
17th June 2025
56AQI
18th June 2025
55AQI
19th June 2025
53AQI
20th June 2025
49AQI
21st June 2025
57AQI
22nd June 2025
60AQI
23rd June 2025
53AQI
24th June 2025
52AQI
25th June 2025
54AQI
26th June 2025
53AQI
27th June 2025
55AQI
28th June 2025
51AQI
29th June 2025
49AQI
30th June 2025
46AQI
1st July 2025
46AQI
2nd July 2025
50AQI
3rd July 2025
52AQI
4th July 2025
53AQI
5th July 2025
50AQI
6th July 2025
45AQI
7th July 2025
42AQI
8th July 2025
44AQI
9th July 2025
43AQI
10th July 2025
48AQI
11th July 2025
46AQI
12th July 2025
47AQI
13th July 2025
51AQI
14th July 2025
56AQI
15th July 2025
60AQI
16th July 2025
60AQI
17th July 2025
58AQI
18th July 2025
57AQI
19th July 2025
46AQI
20th July 2025
43AQI
21st July 2025
38AQI
22nd July 2025
40AQI
23rd July 2025
40AQI
24th July 2025
41AQI
25th July 2025
40AQI
26th July 2025
36AQI
27th July 2025
41AQI
28th July 2025
36AQI
29th July 2025
39AQI
30th July 2025
41AQI
31st July 2025
43AQI
1st August 2025
55AQI
2nd August 2025
60AQI
3rd August 2025
59AQI

108AQI

94AQI

81AQI

81AQI

70AQI

54AQI

46AQI

58AQI

No. of days

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

202576AQI

11
20
19
9
1
27
3
29
1
31
8
22
23
8
3
32
150
33

Highest AQI recorded in

January

108AQI

Lowest AQI recorded in

July

46AQI

202467AQI

6
8
3
5
6
4
4
9
5
25
16
15
4
27
12
17
13
17
1
7
22
1
10
21
61
163
31
3

Highest AQI recorded in

January

122AQI

Lowest AQI recorded in

July

48AQI

202383AQI

3
2
24
5
2
27
5

Highest AQI recorded in

November

83AQI

Lowest AQI recorded in

December

83AQI

Most & Least Polluted Years Over the Last 3 Years

Most Polluted Year Recorded
2023(Avg.)
83AQI
Least Polluted Year Recorded
2024(Avg.)
67AQI

Tiantai County Environmental Protection Building's annual 2025 AQI (76) shows an average percentage change of 2.4% (worsened AQI) compared to previous years: 2023 (83), 2024 (67).