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HistoryAQIPM2.5PM10COSO2NO2O3

Daishan Environmental Protection Building, Zhoushan, 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+

September Air Quality Analysis

Daishan Environmental Protection Building, Zhoushan, Zhejiang, China

2021
2022
2024
2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
6th Sep 2024
91AQI
Lowest AQI recorded on
3rd Sep 2022
14AQI

Same Day Analysis (24th September ):
On this day, AQI across the 4 years varied significantly: 2025 ranks 3rd highest AQI at 36 of Good air quality, showing improvement over 2024 and 2021 on the same day.

Download 2024 Annual Data

World Air Quality Report

Globe

Day & Night AQI Trend: 25th Sep - 26th Sep 2025

Daishan Environmental Protection Building, Zhoushan, Zhejiang, China

AQI
Day
Night
.

5 AM25th Sep 2025

6 PM

4 AM26th Sep 2025

Day time
Avg. Highest Time
12AMNaNth undefined

AQI

Avg. Lowest Time
12AMNaNth undefined

AQI

Night time
Avg. Highest Time
10AM25th Sep

42AQI

Avg. Lowest Time
4AM26th Sep

18AQI

In the last 24 hours,

Daishan Environmental Protection Building's AQI reached its highest point of 42 at 10 AM during the Night, while the lowest point, 18, was recorded at 4 AM during the Night between 25th Sep and 26th Sep 2025.

Day & Night AQI Trend : Aug - Sep 2025

Daishan Environmental Protection Building, Zhoushan, Zhejiang, China

AugSep
27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th
Day
Night
27th Aug 2025515 AMAQI
27th Aug 2025516 AMAQI
27th Aug 2025517 AMAQI
27th Aug 2025468 AMAQI
27th Aug 2025529 AMAQI
27th Aug 20254710 AMAQI
27th Aug 20255211 AMAQI
27th Aug 20254412 PMAQI
27th Aug 2025441 PMAQI
27th Aug 2025502 PMAQI
27th Aug 2025453 PMAQI
27th Aug 2025324 PMAQI
27th Aug 2025365 PMAQI
27th Aug 2025386 PMAQI
27th Aug 2025397 PMAQI
27th Aug 2025508 PMAQI
27th Aug 2025499 PMAQI
27th Aug 20254310 PMAQI
27th Aug 20254011 PMAQI
28th Aug 20254512 AMAQI
28th Aug 2025501 AMAQI
28th Aug 2025532 AMAQI
28th Aug 2025523 AMAQI
28th Aug 2025544 AMAQI

28°C27/29°C

28th Aug 2025545 AMAQI
28th Aug 2025536 AMAQI
28th Aug 2025537 AMAQI
28th Aug 2025358 AMAQI
28th Aug 2025239 AMAQI
28th Aug 20252110 AMAQI
28th Aug 20253011 AMAQI
28th Aug 20253712 PMAQI
28th Aug 2025261 PMAQI
28th Aug 2025322 PMAQI
28th Aug 2025303 PMAQI
28th Aug 2025284 PMAQI
28th Aug 2025225 PMAQI
28th Aug 2025286 PMAQI
28th Aug 2025387 PMAQI
28th Aug 2025448 PMAQI
28th Aug 2025419 PMAQI
28th Aug 20254410 PMAQI
28th Aug 20254411 PMAQI
29th Aug 20254712 AMAQI
29th Aug 2025531 AMAQI
29th Aug 2025542 AMAQI
29th Aug 2025503 AMAQI
29th Aug 2025464 AMAQI

28°C28/30°C

29th Aug 2025485 AMAQI
29th Aug 2025486 AMAQI
29th Aug 2025507 AMAQI
29th Aug 2025338 AMAQI
29th Aug 2025309 AMAQI
29th Aug 20252410 AMAQI
29th Aug 20253711 AMAQI
29th Aug 20253412 PMAQI
29th Aug 2025331 PMAQI
29th Aug 2025362 PMAQI
29th Aug 2025383 PMAQI
29th Aug 2025444 PMAQI
29th Aug 2025425 PMAQI
29th Aug 2025426 PMAQI
29th Aug 2025507 PMAQI
29th Aug 2025508 PMAQI
29th Aug 2025509 PMAQI
29th Aug 20255110 PMAQI
29th Aug 20254811 PMAQI
30th Aug 20254812 AMAQI
30th Aug 2025521 AMAQI
30th Aug 2025502 AMAQI
30th Aug 2025503 AMAQI
30th Aug 2025484 AMAQI

28°C27/29°C

30th Aug 2025475 AMAQI
30th Aug 2025516 AMAQI
30th Aug 2025487 AMAQI
30th Aug 2025378 AMAQI
30th Aug 2025319 AMAQI
30th Aug 20253310 AMAQI
30th Aug 20253211 AMAQI
30th Aug 20253612 PMAQI
30th Aug 2025321 PMAQI
30th Aug 2025462 PMAQI
30th Aug 2025563 PMAQI
30th Aug 2025374 PMAQI
30th Aug 2025465 PMAQI
30th Aug 2025466 PMAQI
30th Aug 2025447 PMAQI
30th Aug 2025468 PMAQI
30th Aug 2025439 PMAQI
30th Aug 20253810 PMAQI
30th Aug 20254411 PMAQI
31st Aug 20254812 AMAQI
31st Aug 2025531 AMAQI
31st Aug 2025512 AMAQI
31st Aug 2025523 AMAQI
31st Aug 2025524 AMAQI

28°C27/29°C

31st Aug 2025505 AMAQI
31st Aug 2025506 AMAQI
31st Aug 2025507 AMAQI
31st Aug 2025328 AMAQI
31st Aug 2025349 AMAQI
31st Aug 20254010 AMAQI
31st Aug 20254411 AMAQI
31st Aug 20255312 PMAQI
31st Aug 2025371 PMAQI
31st Aug 2025592 PMAQI
31st Aug 2025503 PMAQI
31st Aug 2025484 PMAQI
31st Aug 2025385 PMAQI
31st Aug 2025506 PMAQI
31st Aug 2025467 PMAQI
31st Aug 2025438 PMAQI
31st Aug 2025479 PMAQI
31st Aug 20254610 PMAQI
31st Aug 20254611 PMAQI
1st Sep 20255012 AMAQI
1st Sep 2025481 AMAQI
1st Sep 2025482 AMAQI
1st Sep 2025493 AMAQI
1st Sep 2025504 AMAQI

28°C26/29°C

1st Sep 2025515 AMAQI
1st Sep 2025526 AMAQI
1st Sep 2025527 AMAQI
1st Sep 2025518 AMAQI
1st Sep 2025569 AMAQI
1st Sep 20255510 AMAQI
1st Sep 20255811 AMAQI
1st Sep 20255112 PMAQI
1st Sep 2025561 PMAQI
1st Sep 2025532 PMAQI
1st Sep 2025543 PMAQI
1st Sep 2025544 PMAQI
1st Sep 2025525 PMAQI
1st Sep 2025546 PMAQI
1st Sep 2025527 PMAQI
1st Sep 2025558 PMAQI
1st Sep 2025569 PMAQI
1st Sep 20255010 PMAQI
1st Sep 20255611 PMAQI
2nd Sep 20255312 AMAQI
2nd Sep 2025521 AMAQI
2nd Sep 2025502 AMAQI
2nd Sep 2025523 AMAQI
2nd Sep 2025524 AMAQI

28°C27/30°C

2nd Sep 2025525 AMAQI
2nd Sep 2025536 AMAQI
2nd Sep 2025537 AMAQI
2nd Sep 2025548 AMAQI
2nd Sep 2025579 AMAQI
2nd Sep 20255510 AMAQI
2nd Sep 20255611 AMAQI
2nd Sep 20255612 PMAQI
2nd Sep 2025521 PMAQI
2nd Sep 2025532 PMAQI
2nd Sep 2025573 PMAQI
2nd Sep 2025504 PMAQI
2nd Sep 2025445 PMAQI
2nd Sep 2025466 PMAQI
2nd Sep 2025497 PMAQI
2nd Sep 2025498 PMAQI
2nd Sep 2025449 PMAQI
2nd Sep 20254410 PMAQI
2nd Sep 20254711 PMAQI
3rd Sep 20254712 AMAQI
3rd Sep 2025521 AMAQI
3rd Sep 2025522 AMAQI
3rd Sep 2025543 AMAQI
3rd Sep 2025544 AMAQI

28°C27/29°C

3rd Sep 2025535 AMAQI
3rd Sep 2025536 AMAQI
3rd Sep 2025547 AMAQI
3rd Sep 2025398 AMAQI
3rd Sep 2025459 AMAQI
3rd Sep 20255310 AMAQI
3rd Sep 20254911 AMAQI
3rd Sep 20256612 PMAQI
3rd Sep 2025541 PMAQI
3rd Sep 2025562 PMAQI
3rd Sep 2025563 PMAQI
3rd Sep 2025544 PMAQI
3rd Sep 2025565 PMAQI
3rd Sep 2025496 PMAQI
3rd Sep 2025527 PMAQI
3rd Sep 2025508 PMAQI
3rd Sep 2025539 PMAQI
3rd Sep 20254810 PMAQI
3rd Sep 20254511 PMAQI
4th Sep 20254812 AMAQI
4th Sep 2025531 AMAQI
4th Sep 2025522 AMAQI
4th Sep 2025543 AMAQI
4th Sep 2025544 AMAQI

28°C27/29°C

4th Sep 2025545 AMAQI
4th Sep 2025556 AMAQI
4th Sep 2025547 AMAQI
4th Sep 2025468 AMAQI
4th Sep 2025509 AMAQI
4th Sep 20254810 AMAQI
4th Sep 20255411 AMAQI
4th Sep 20255312 PMAQI
4th Sep 2025601 PMAQI
4th Sep 2025582 PMAQI
4th Sep 2025553 PMAQI
4th Sep 2025524 PMAQI
4th Sep 2025395 PMAQI
4th Sep 2025396 PMAQI
4th Sep 2025407 PMAQI
4th Sep 2025368 PMAQI
4th Sep 2025319 PMAQI
4th Sep 20253010 PMAQI
4th Sep 20253211 PMAQI
5th Sep 20253712 AMAQI
5th Sep 2025541 AMAQI
5th Sep 2025552 AMAQI
5th Sep 2025543 AMAQI
5th Sep 2025554 AMAQI

28°C27/30°C

5th Sep 2025555 AMAQI
5th Sep 2025556 AMAQI
5th Sep 2025557 AMAQI
5th Sep 2025548 AMAQI
5th Sep 2025609 AMAQI
5th Sep 20254910 AMAQI
5th Sep 20255611 AMAQI
5th Sep 20255212 PMAQI
5th Sep 2025561 PMAQI
5th Sep 2025582 PMAQI
5th Sep 2025533 PMAQI
5th Sep 2025544 PMAQI
5th Sep 2025605 PMAQI
5th Sep 2025506 PMAQI
5th Sep 2025487 PMAQI
5th Sep 2025498 PMAQI
5th Sep 2025489 PMAQI
5th Sep 20254710 PMAQI
5th Sep 20255111 PMAQI
6th Sep 20254912 AMAQI
6th Sep 2025541 AMAQI
6th Sep 2025582 AMAQI
6th Sep 2025553 AMAQI
6th Sep 2025554 AMAQI

28°C27/30°C

6th Sep 2025565 AMAQI
6th Sep 2025566 AMAQI
6th Sep 2025557 AMAQI
6th Sep 2025478 AMAQI
6th Sep 2025349 AMAQI
6th Sep 20254110 AMAQI
6th Sep 20254411 AMAQI
6th Sep 20254912 PMAQI
6th Sep 2025501 PMAQI
6th Sep 2025392 PMAQI
6th Sep 2025483 PMAQI
6th Sep 2025624 PMAQI
6th Sep 2025525 PMAQI
6th Sep 2025426 PMAQI
6th Sep 2025527 PMAQI
6th Sep 2025568 PMAQI
6th Sep 2025609 PMAQI
6th Sep 20255810 PMAQI
6th Sep 20255811 PMAQI
7th Sep 20256112 AMAQI
7th Sep 2025561 AMAQI
7th Sep 2025552 AMAQI
7th Sep 2025553 AMAQI
7th Sep 2025564 AMAQI

29°C28/30°C

7th Sep 2025555 AMAQI
7th Sep 2025566 AMAQI
7th Sep 2025577 AMAQI
7th Sep 2025528 AMAQI
7th Sep 2025549 AMAQI
7th Sep 20255010 AMAQI
7th Sep 20255211 AMAQI
7th Sep 20255812 PMAQI
7th Sep 2025661 PMAQI
7th Sep 2025532 PMAQI
7th Sep 2025683 PMAQI
7th Sep 2025754 PMAQI
7th Sep 2025735 PMAQI
7th Sep 2025546 PMAQI
7th Sep 2025607 PMAQI
7th Sep 2025588 PMAQI
7th Sep 2025609 PMAQI
7th Sep 20255510 PMAQI
7th Sep 20255211 PMAQI
8th Sep 20255412 AMAQI
8th Sep 2025561 AMAQI
8th Sep 2025562 AMAQI
8th Sep 2025563 AMAQI
8th Sep 2025584 AMAQI

29°C28/30°C

8th Sep 2025565 AMAQI
8th Sep 2025586 AMAQI
8th Sep 2025587 AMAQI
8th Sep 2025498 AMAQI
8th Sep 2025539 AMAQI
8th Sep 20254610 AMAQI
8th Sep 20254611 AMAQI
8th Sep 20254412 PMAQI
8th Sep 2025391 PMAQI
8th Sep 2025402 PMAQI
8th Sep 2025363 PMAQI
8th Sep 2025404 PMAQI
8th Sep 2025465 PMAQI
8th Sep 2025526 PMAQI
8th Sep 2025527 PMAQI
8th Sep 2025568 PMAQI
8th Sep 2025529 PMAQI
8th Sep 20255010 PMAQI
8th Sep 20255211 PMAQI
9th Sep 20255612 AMAQI
9th Sep 2025601 AMAQI
9th Sep 2025592 AMAQI
9th Sep 2025603 AMAQI
9th Sep 2025594 AMAQI

29°C28/30°C

9th Sep 2025585 AMAQI
9th Sep 2025576 AMAQI
9th Sep 2025587 AMAQI
9th Sep 2025408 AMAQI
9th Sep 2025529 AMAQI
9th Sep 20255710 AMAQI
9th Sep 20255611 AMAQI
9th Sep 20256212 PMAQI
9th Sep 2025581 PMAQI
9th Sep 2025642 PMAQI
9th Sep 2025553 PMAQI
9th Sep 2025554 PMAQI
9th Sep 2025475 PMAQI
9th Sep 2025426 PMAQI
9th Sep 2025457 PMAQI
9th Sep 2025508 PMAQI
9th Sep 2025529 PMAQI
9th Sep 20255310 PMAQI
9th Sep 20255411 PMAQI
10th Sep 20255712 AMAQI
10th Sep 2025591 AMAQI
10th Sep 2025602 AMAQI
10th Sep 2025603 AMAQI
10th Sep 2025594 AMAQI

28°C26/29°C

10th Sep 2025595 AMAQI
10th Sep 2025586 AMAQI
10th Sep 2025587 AMAQI
10th Sep 2025358 AMAQI
10th Sep 2025369 AMAQI
10th Sep 20253310 AMAQI
10th Sep 20253811 AMAQI
10th Sep 20254712 PMAQI
10th Sep 2025431 PMAQI
10th Sep 2025522 PMAQI
10th Sep 2025443 PMAQI
10th Sep 2025524 PMAQI
10th Sep 2025485 PMAQI
10th Sep 2025526 PMAQI
10th Sep 2025537 PMAQI
10th Sep 2025558 PMAQI
10th Sep 2025549 PMAQI
10th Sep 20255410 PMAQI
10th Sep 20255411 PMAQI
11th Sep 20255612 AMAQI
11th Sep 2025581 AMAQI
11th Sep 2025582 AMAQI
11th Sep 2025583 AMAQI
11th Sep 2025574 AMAQI

27°C26/28°C

11th Sep 2025575 AMAQI
11th Sep 2025576 AMAQI
11th Sep 2025587 AMAQI
11th Sep 2025548 AMAQI
11th Sep 2025529 AMAQI
11th Sep 20255310 AMAQI
11th Sep 20255511 AMAQI
11th Sep 20255512 PMAQI
11th Sep 2025541 PMAQI
11th Sep 2025552 PMAQI
11th Sep 2025563 PMAQI
11th Sep 2025564 PMAQI
11th Sep 2025565 PMAQI
11th Sep 2025566 PMAQI
11th Sep 2025517 PMAQI
11th Sep 2025528 PMAQI
11th Sep 2025549 PMAQI
11th Sep 20254410 PMAQI
11th Sep 20255011 PMAQI
12th Sep 20255512 AMAQI
12th Sep 2025571 AMAQI
12th Sep 2025572 AMAQI
12th Sep 2025573 AMAQI
12th Sep 2025574 AMAQI

27°C26/28°C

12th Sep 2025575 AMAQI
12th Sep 2025576 AMAQI
12th Sep 2025577 AMAQI
12th Sep 2025548 AMAQI
12th Sep 2025469 AMAQI
12th Sep 20254410 AMAQI
12th Sep 20254311 AMAQI
12th Sep 20254612 PMAQI
12th Sep 2025481 PMAQI
12th Sep 2025472 PMAQI
12th Sep 2025413 PMAQI
12th Sep 2025484 PMAQI
12th Sep 2025485 PMAQI
12th Sep 2025426 PMAQI
12th Sep 2025477 PMAQI
12th Sep 2025588 PMAQI
12th Sep 2025589 PMAQI
12th Sep 20255410 PMAQI
12th Sep 20255211 PMAQI
13th Sep 20255412 AMAQI
13th Sep 2025561 AMAQI
13th Sep 2025572 AMAQI
13th Sep 2025563 AMAQI
13th Sep 2025524 AMAQI

28°C26/29°C

13th Sep 2025545 AMAQI
13th Sep 2025546 AMAQI
13th Sep 2025537 AMAQI
13th Sep 2025538 AMAQI
13th Sep 2025599 AMAQI
13th Sep 20256210 AMAQI
13th Sep 20256311 AMAQI
13th Sep 20257312 PMAQI
13th Sep 2025731 PMAQI
13th Sep 2025742 PMAQI
13th Sep 2025603 PMAQI
13th Sep 2025584 PMAQI
13th Sep 2025625 PMAQI
13th Sep 2025626 PMAQI
13th Sep 2025557 PMAQI
13th Sep 2025558 PMAQI
13th Sep 2025529 PMAQI
13th Sep 20254210 PMAQI
13th Sep 20255211 PMAQI
14th Sep 20255412 AMAQI
14th Sep 2025561 AMAQI
14th Sep 2025562 AMAQI
14th Sep 2025563 AMAQI
14th Sep 2025584 AMAQI

28°C27/30°C

14th Sep 2025575 AMAQI
14th Sep 2025576 AMAQI
14th Sep 2025577 AMAQI
14th Sep 2025478 AMAQI
14th Sep 2025569 AMAQI
14th Sep 20254510 AMAQI
14th Sep 20254211 AMAQI
14th Sep 20254112 PMAQI
14th Sep 2025451 PMAQI
14th Sep 2025422 PMAQI
14th Sep 2025493 PMAQI
14th Sep 2025564 PMAQI
14th Sep 2025495 PMAQI
14th Sep 2025506 PMAQI
14th Sep 2025507 PMAQI
14th Sep 2025518 PMAQI
14th Sep 2025529 PMAQI
14th Sep 20255110 PMAQI
14th Sep 20255311 PMAQI
15th Sep 20255312 AMAQI
15th Sep 2025571 AMAQI
15th Sep 2025562 AMAQI
15th Sep 2025563 AMAQI
15th Sep 2025554 AMAQI

28°C27/29°C

15th Sep 2025545 AMAQI
15th Sep 2025546 AMAQI
15th Sep 2025547 AMAQI
15th Sep 2025438 AMAQI
15th Sep 2025519 AMAQI
15th Sep 20255010 AMAQI
15th Sep 20255511 AMAQI
15th Sep 20254812 PMAQI
15th Sep 2025361 PMAQI
15th Sep 2025322 PMAQI
15th Sep 2025353 PMAQI
15th Sep 2025384 PMAQI
15th Sep 2025275 PMAQI
15th Sep 2025316 PMAQI
15th Sep 2025447 PMAQI
15th Sep 2025548 PMAQI
15th Sep 2025539 PMAQI
15th Sep 20255610 PMAQI
15th Sep 20255311 PMAQI
16th Sep 20254712 AMAQI
16th Sep 2025541 AMAQI
16th Sep 2025552 AMAQI
16th Sep 2025553 AMAQI
16th Sep 2025554 AMAQI

28°C27/29°C

16th Sep 2025565 AMAQI
16th Sep 2025556 AMAQI
16th Sep 2025557 AMAQI
16th Sep 2025358 AMAQI
16th Sep 2025309 AMAQI
16th Sep 20252310 AMAQI
16th Sep 20252011 AMAQI
16th Sep 20252212 PMAQI
16th Sep 2025281 PMAQI
16th Sep 2025262 PMAQI
16th Sep 2025243 PMAQI
16th Sep 2025264 PMAQI
16th Sep 2025365 PMAQI
16th Sep 2025416 PMAQI
16th Sep 2025497 PMAQI
16th Sep 2025528 PMAQI
16th Sep 2025519 PMAQI
16th Sep 20255410 PMAQI
16th Sep 20255111 PMAQI
17th Sep 20255212 AMAQI
17th Sep 2025541 AMAQI
17th Sep 2025552 AMAQI
17th Sep 2025543 AMAQI
17th Sep 2025524 AMAQI

28°C28/30°C

17th Sep 2025535 AMAQI
17th Sep 2025536 AMAQI
17th Sep 2025537 AMAQI
17th Sep 2025308 AMAQI
17th Sep 2025309 AMAQI
17th Sep 20252310 AMAQI
17th Sep 20252511 AMAQI
17th Sep 20254512 PMAQI
17th Sep 2025541 PMAQI
17th Sep 2025552 PMAQI
17th Sep 2025603 PMAQI
17th Sep 2025494 PMAQI
17th Sep 2025525 PMAQI
17th Sep 2025526 PMAQI
17th Sep 2025527 PMAQI
17th Sep 2025498 PMAQI
17th Sep 2025449 PMAQI
17th Sep 20254210 PMAQI
17th Sep 20254211 PMAQI
18th Sep 20254612 AMAQI
18th Sep 2025551 AMAQI
18th Sep 2025532 AMAQI
18th Sep 2025533 AMAQI
18th Sep 2025534 AMAQI

29°C28/30°C

18th Sep 2025525 AMAQI
18th Sep 2025526 AMAQI
18th Sep 2025527 AMAQI
18th Sep 2025408 AMAQI
18th Sep 2025349 AMAQI
18th Sep 20253210 AMAQI
18th Sep 20252811 AMAQI
18th Sep 20253312 PMAQI
18th Sep 2025341 PMAQI
18th Sep 2025292 PMAQI
18th Sep 2025253 PMAQI
18th Sep 2025264 PMAQI
18th Sep 2025285 PMAQI
18th Sep 2025326 PMAQI
18th Sep 2025437 PMAQI
18th Sep 2025488 PMAQI
18th Sep 2025499 PMAQI
18th Sep 20255310 PMAQI
18th Sep 20255011 PMAQI
19th Sep 20255112 AMAQI
19th Sep 2025541 AMAQI
19th Sep 2025532 AMAQI
19th Sep 2025523 AMAQI
19th Sep 2025524 AMAQI

27°C26/28°C

19th Sep 2025525 AMAQI
19th Sep 2025516 AMAQI
19th Sep 2025517 AMAQI
19th Sep 2025318 AMAQI
19th Sep 2025299 AMAQI
19th Sep 20252610 AMAQI
19th Sep 20252411 AMAQI
19th Sep 20252512 PMAQI
19th Sep 2025271 PMAQI
19th Sep 2025202 PMAQI
19th Sep 2025223 PMAQI
19th Sep 2025224 PMAQI
19th Sep 2025205 PMAQI
19th Sep 2025246 PMAQI
19th Sep 2025427 PMAQI
19th Sep 2025508 PMAQI
19th Sep 2025489 PMAQI
19th Sep 20254710 PMAQI
19th Sep 20253811 PMAQI
20th Sep 20254112 AMAQI
20th Sep 2025521 AMAQI
20th Sep 2025532 AMAQI
20th Sep 2025503 AMAQI
20th Sep 2025484 AMAQI

27°C26/28°C

20th Sep 2025495 AMAQI
20th Sep 2025496 AMAQI
20th Sep 2025487 AMAQI
20th Sep 2025348 AMAQI
20th Sep 2025429 AMAQI
20th Sep 20254010 AMAQI
20th Sep 20255611 AMAQI
20th Sep 20255412 PMAQI
20th Sep 2025551 PMAQI
20th Sep 2025482 PMAQI
20th Sep 2025513 PMAQI
20th Sep 2025414 PMAQI
20th Sep 2025325 PMAQI
20th Sep 2025336 PMAQI
20th Sep 2025407 PMAQI
20th Sep 2025448 PMAQI
20th Sep 2025439 PMAQI
20th Sep 20254010 PMAQI
20th Sep 20253511 PMAQI
21st Sep 20254112 AMAQI
21st Sep 2025421 AMAQI
21st Sep 2025512 AMAQI
21st Sep 2025523 AMAQI
21st Sep 2025524 AMAQI

26°C25/26°C

21st Sep 2025525 AMAQI
21st Sep 2025526 AMAQI
21st Sep 2025527 AMAQI
21st Sep 2025388 AMAQI
21st Sep 2025389 AMAQI
21st Sep 20253810 AMAQI
21st Sep 20254311 AMAQI
21st Sep 20253712 PMAQI
21st Sep 2025361 PMAQI
21st Sep 2025322 PMAQI
21st Sep 2025373 PMAQI
21st Sep 2025384 PMAQI
21st Sep 2025405 PMAQI
21st Sep 2025386 PMAQI
21st Sep 2025477 PMAQI
21st Sep 2025428 PMAQI
21st Sep 2025419 PMAQI
21st Sep 20253910 PMAQI
21st Sep 20253611 PMAQI
22nd Sep 20253712 AMAQI
22nd Sep 2025501 AMAQI
22nd Sep 2025512 AMAQI
22nd Sep 2025503 AMAQI
22nd Sep 2025474 AMAQI

25°C25/26°C

22nd Sep 2025485 AMAQI
22nd Sep 2025486 AMAQI
22nd Sep 2025467 AMAQI
22nd Sep 2025308 AMAQI
22nd Sep 2025199 AMAQI
22nd Sep 20252310 AMAQI
22nd Sep 20252111 AMAQI
22nd Sep 20252412 PMAQI
22nd Sep 2025251 PMAQI
22nd Sep 2025222 PMAQI
22nd Sep 2025243 PMAQI
22nd Sep 2025254 PMAQI
22nd Sep 2025285 PMAQI
22nd Sep 2025276 PMAQI
22nd Sep 2025417 PMAQI
22nd Sep 2025458 PMAQI
22nd Sep 2025469 PMAQI
22nd Sep 20254410 PMAQI
22nd Sep 20254511 PMAQI
23rd Sep 20253912 AMAQI
23rd Sep 2025461 AMAQI
23rd Sep 2025502 AMAQI
23rd Sep 2025473 AMAQI
23rd Sep 2025444 AMAQI

26°C25/28°C

23rd Sep 2025445 AMAQI
23rd Sep 2025436 AMAQI
23rd Sep 2025437 AMAQI
23rd Sep 2025298 AMAQI
23rd Sep 2025309 AMAQI
23rd Sep 20252210 AMAQI
23rd Sep 20252111 AMAQI
23rd Sep 20252212 PMAQI
23rd Sep 2025271 PMAQI
23rd Sep 2025222 PMAQI
23rd Sep 2025243 PMAQI
23rd Sep 2025274 PMAQI
23rd Sep 2025305 PMAQI
23rd Sep 2025306 PMAQI
23rd Sep 2025377 PMAQI
23rd Sep 2025388 PMAQI
23rd Sep 2025379 PMAQI
23rd Sep 20253610 PMAQI
23rd Sep 20253511 PMAQI
24th Sep 20253412 AMAQI
24th Sep 2025461 AMAQI
24th Sep 2025462 AMAQI
24th Sep 2025463 AMAQI
24th Sep 2025424 AMAQI

27°C26/28°C

24th Sep 2025425 AMAQI
24th Sep 2025426 AMAQI
24th Sep 2025427 AMAQI
24th Sep 2025278 AMAQI
24th Sep 2025249 AMAQI
24th Sep 20252310 AMAQI
24th Sep 20252011 AMAQI
24th Sep 20252312 PMAQI
24th Sep 2025241 PMAQI
24th Sep 2025182 PMAQI
24th Sep 2025253 PMAQI
24th Sep 2025244 PMAQI
24th Sep 2025265 PMAQI
24th Sep 2025296 PMAQI
24th Sep 2025397 PMAQI
24th Sep 2025428 PMAQI
24th Sep 2025419 PMAQI
24th Sep 20254010 PMAQI
24th Sep 20253711 PMAQI
25th Sep 20253612 AMAQI
25th Sep 2025461 AMAQI
25th Sep 2025462 AMAQI
25th Sep 2025423 AMAQI
25th Sep 2025394 AMAQI

27°C27/28°C

25th Sep 2025415 AMAQI
25th Sep 2025416 AMAQI
25th Sep 2025417 AMAQI
25th Sep 2025338 AMAQI
25th Sep 2025359 AMAQI
25th Sep 20254210 AMAQI
25th Sep 20253411 AMAQI
25th Sep 20252912 PMAQI
25th Sep 2025221 PMAQI
25th Sep 2025182 PMAQI
25th Sep 2025183 PMAQI
25th Sep 2025194 PMAQI
25th Sep 2025225 PMAQI
25th Sep 2025256 PMAQI
25th Sep 2025347 PMAQI
25th Sep 2025338 PMAQI
25th Sep 2025279 PMAQI
25th Sep 20252110 PMAQI
25th Sep 20251911 PMAQI
26th Sep 20251912 AMAQI
26th Sep 2025181 AMAQI
26th Sep 2025182 AMAQI
26th Sep 2025183 AMAQI
26th Sep 2025184 AMAQI

--°C/°C

26th Sep 2025175 AMAQI
5 AM
26th Sep 2025166 AMAQI
11 AM
6 PM
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 - 10 AM

41AQI

3 hours / Day
90 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 10 AM (Avg. 41).
Night time
Avg. Highest Time
1 AM - 4 AM

52AQI

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

2025 Days Vs Air Quality

Daishan Environmental Protection Building, Zhoushan, Zhejiang, China

2025

27%

71

67%

178

6%

16

0.7%

2

Total number of days with different AQI categories in last 268 days in 2025 (97 days remaining)

Good
71 Days
Moderate
178 Days
Poor
16 Days
Unhealthy
2 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 27%

Health Risk Level:

Very high

In 2025, 27% of 268 days were within WHO’s safe air quality limits. The risk of health issues is Very high, including respiratory issues, heart disease, and stress, particularly affecting vulnerable groups.

Annual Air Quality Insights

Daishan Environmental Protection Building, Zhoushan, 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.

-1th undefined 2025
-1th undefined 2025
-1th undefined 2025
1st January 2025
77AQI
2nd January 2025
68AQI
3rd January 2025
77AQI
4th January 2025
70AQI
5th January 2025
98AQI
6th January 2025
115AQI
7th January 2025
102AQI
8th January 2025
118AQI
9th January 2025
76AQI
10th January 2025
78AQI
11th January 2025
86AQI
12th January 2025
109AQI
13th January 2025
125AQI
14th January 2025
103AQI
15th January 2025
82AQI
16th January 2025
83AQI
17th January 2025
108AQI
18th January 2025
106AQI
19th January 2025
121AQI
20th January 2025
151AQI
21st January 2025
151AQI
22nd January 2025
98AQI
23rd January 2025
91AQI
24th January 2025
76AQI
25th January 2025
70AQI
26th January 2025
68AQI
27th January 2025
66AQI
28th January 2025
65AQI
29th January 2025
111AQI
30th January 2025
82AQI
31st January 2025
69AQI
1st February 2025
55AQI
2nd February 2025
76AQI
3rd February 2025
93AQI
4th February 2025
101AQI
5th February 2025
87AQI
6th February 2025
83AQI
7th February 2025
76AQI
8th February 2025
64AQI
9th February 2025
78AQI
10th February 2025
76AQI
11th February 2025
62AQI
12th February 2025
109AQI
13th February 2025
70AQI
14th February 2025
71AQI
15th February 2025
68AQI
16th February 2025
117AQI
17th February 2025
63AQI
18th February 2025
74AQI
19th February 2025
72AQI
20th February 2025
58AQI
21st February 2025
62AQI
22nd February 2025
71AQI
23rd February 2025
78AQI
24th February 2025
127AQI
25th February 2025
97AQI
26th February 2025
148AQI
27th February 2025
105AQI
28th February 2025
86AQI
1st March 2025
77AQI
2nd March 2025
71AQI
3rd March 2025
63AQI
4th March 2025
54AQI
5th March 2025
54AQI
6th March 2025
63AQI
7th March 2025
66AQI
8th March 2025
88AQI
9th March 2025
61AQI
10th March 2025
78AQI
11th March 2025
63AQI
12th March 2025
64AQI
13th March 2025
58AQI
14th March 2025
58AQI
15th March 2025
45AQI
16th March 2025
77AQI
17th March 2025
66AQI
18th March 2025
74AQI
19th March 2025
65AQI
20th March 2025
78AQI
21st March 2025
74AQI
22nd March 2025
88AQI
23rd March 2025
80AQI
24th March 2025
95AQI
25th March 2025
89AQI
26th March 2025
74AQI
27th March 2025
74AQI
28th March 2025
61AQI
29th March 2025
70AQI
30th March 2025
53AQI
31st March 2025
57AQI
1st April 2025
62AQI
2nd April 2025
68AQI
3rd April 2025
65AQI
4th April 2025
59AQI
5th April 2025
72AQI
6th April 2025
74AQI
7th April 2025
72AQI
8th April 2025
72AQI
9th April 2025
66AQI
10th April 2025
82AQI
11th April 2025
61AQI
12th April 2025
76AQI
13th April 2025
70AQI
14th April 2025
75AQI
15th April 2025
66AQI
16th April 2025
63AQI
17th April 2025
77AQI
18th April 2025
62AQI
19th April 2025
71AQI
20th April 2025
60AQI
21st April 2025
58AQI
22nd April 2025
60AQI
23rd April 2025
66AQI
24th April 2025
76AQI
25th April 2025
63AQI
26th April 2025
56AQI
27th April 2025
56AQI
28th April 2025
57AQI
29th April 2025
59AQI
30th April 2025
51AQI
1st May 2025
63AQI
2nd May 2025
58AQI
3rd May 2025
63AQI
4th May 2025
48AQI
5th May 2025
53AQI
6th May 2025
77AQI
7th May 2025
63AQI
8th May 2025
64AQI
9th May 2025
55AQI
10th May 2025
56AQI
11th May 2025
60AQI
12th May 2025
65AQI
13th May 2025
62AQI
14th May 2025
55AQI
15th May 2025
50AQI
16th May 2025
58AQI
17th May 2025
65AQI
18th May 2025
62AQI
19th May 2025
60AQI
20th May 2025
64AQI
21st May 2025
46AQI
22nd May 2025
58AQI
23rd May 2025
41AQI
24th May 2025
63AQI
25th May 2025
64AQI
26th May 2025
61AQI
27th May 2025
59AQI
28th May 2025
57AQI
29th May 2025
58AQI
30th May 2025
73AQI
31st May 2025
63AQI
1st June 2025
53AQI
2nd June 2025
47AQI
3rd June 2025
52AQI
4th June 2025
62AQI
5th June 2025
54AQI
6th June 2025
55AQI
7th June 2025
54AQI
8th June 2025
45AQI
9th June 2025
54AQI
10th June 2025
43AQI
11th June 2025
48AQI
12th June 2025
43AQI
13th June 2025
39AQI
14th June 2025
46AQI
15th June 2025
40AQI
16th June 2025
41AQI
17th June 2025
52AQI
18th June 2025
54AQI
19th June 2025
49AQI
20th June 2025
44AQI
21st June 2025
53AQI
22nd June 2025
57AQI
23rd June 2025
52AQI
24th June 2025
55AQI
25th June 2025
55AQI
26th June 2025
56AQI
27th June 2025
56AQI
28th June 2025
56AQI
29th June 2025
44AQI
30th June 2025
40AQI
1st July 2025
41AQI
2nd July 2025
47AQI
3rd July 2025
52AQI
4th July 2025
50AQI
5th July 2025
49AQI
6th July 2025
39AQI
7th July 2025
40AQI
8th July 2025
40AQI
9th July 2025
42AQI
10th July 2025
48AQI
11th July 2025
43AQI
12th July 2025
41AQI
13th July 2025
44AQI
14th July 2025
59AQI
15th July 2025
58AQI
16th July 2025
59AQI
17th July 2025
57AQI
18th July 2025
52AQI
19th July 2025
45AQI
20th July 2025
43AQI
21st July 2025
39AQI
22nd July 2025
39AQI
23rd July 2025
38AQI
24th July 2025
39AQI
25th July 2025
39AQI
26th July 2025
34AQI
27th July 2025
35AQI
28th July 2025
36AQI
29th July 2025
34AQI
30th July 2025
32AQI
31st July 2025
48AQI
1st August 2025
52AQI
2nd August 2025
56AQI
3rd August 2025
57AQI
4th August 2025
60AQI
5th August 2025
50AQI
6th August 2025
51AQI
7th August 2025
57AQI
8th August 2025
60AQI
9th August 2025
62AQI
10th August 2025
62AQI
11th August 2025
59AQI
12th August 2025
57AQI
13th August 2025
47AQI
14th August 2025
40AQI
15th August 2025
38AQI
16th August 2025
42AQI
17th August 2025
49AQI
18th August 2025
45AQI
19th August 2025
49AQI
20th August 2025
52AQI
21st August 2025
56AQI
22nd August 2025
52AQI
23rd August 2025
52AQI
24th August 2025
46AQI
25th August 2025
44AQI
26th August 2025
48AQI
27th August 2025
47AQI
28th August 2025
40AQI
29th August 2025
45AQI
30th August 2025
44AQI
31st August 2025
47AQI
1st September 2025
53AQI
2nd September 2025
51AQI
3rd September 2025
52AQI
4th September 2025
45AQI
5th September 2025
48AQI
6th September 2025
52AQI
7th September 2025
58AQI
8th September 2025
51AQI
9th September 2025
54AQI
10th September 2025
52AQI
11th September 2025
55AQI
12th September 2025
52AQI
13th September 2025
57AQI
14th September 2025
52AQI
15th September 2025
48AQI
16th September 2025
44AQI
17th September 2025
48AQI
18th September 2025
43AQI
19th September 2025
40AQI
20th September 2025
45AQI
21st September 2025
43AQI
22nd September 2025
38AQI
23rd September 2025
36AQI
24th September 2025
36AQI
25th September 2025
26th September 2025
27th September 2025
28th September 2025
29th September 2025
30th September 2025
1st October 2025
2nd October 2025
3rd October 2025
4th October 2025
5th October 2025
6th October 2025
7th October 2025
8th October 2025
9th October 2025
10th October 2025
11th October 2025
12th October 2025
13th October 2025
14th October 2025
15th October 2025
16th October 2025
17th October 2025
18th October 2025
19th October 2025
20th October 2025
21st October 2025
22nd October 2025
23rd October 2025
24th October 2025
25th October 2025
26th October 2025
27th October 2025
28th October 2025
29th October 2025
30th October 2025
31st October 2025
1st November 2025
2nd November 2025
3rd November 2025
4th November 2025
5th November 2025
6th November 2025
7th November 2025
8th November 2025
9th November 2025
10th November 2025
11th November 2025
12th November 2025
13th November 2025
14th November 2025
15th November 2025
16th November 2025
17th November 2025
18th November 2025
19th November 2025
20th November 2025
21st November 2025
22nd November 2025
23rd November 2025
24th November 2025
25th November 2025
26th November 2025
27th November 2025
28th November 2025
29th November 2025
30th November 2025
1st December 2025
2nd December 2025
3rd December 2025
4th December 2025
5th December 2025
6th December 2025
7th December 2025
8th December 2025
9th December 2025
10th December 2025
11th December 2025
12th December 2025
13th December 2025
14th December 2025
15th December 2025
16th December 2025
17th December 2025
18th December 2025
19th December 2025
20th December 2025
21st December 2025
22nd December 2025
23rd December 2025
24th December 2025
25th December 2025
26th December 2025
27th December 2025
28th December 2025
29th December 2025
30th December 2025
31st December 2025

94AQI

83AQI

69AQI

66AQI

59AQI

50AQI

44AQI

51AQI

48AQI

No. of days

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

202563AQI

19
10
2
22
6
1
30
30
4
27
13
17
25
6
16
15
12
12
71
178
16
2

Highest AQI recorded in

January

94AQI

Lowest AQI recorded in

July

44AQI

202455AQI

3
6
8
3
1
3
1
4
1
2
3
13
2
20
10
25
6
17
14
23
6
20
11
18
12
24
7
143
101
15
4

Highest AQI recorded in

January

101AQI

Lowest AQI recorded in

July

43AQI

202384AQI

2
1
3
21
5
2
3
23
6
2

Highest AQI recorded in

November

85AQI

Lowest AQI recorded in

December

83AQI

202253AQI

6
2
2
1
7
12
2
14
15
2
11
6
18
12
1
23
7
9
12
2
1
1
19
8
2
110
75
9
1

Highest AQI recorded in

January

70AQI

Lowest AQI recorded in

June

40AQI

202151AQI

1
16
3
16
8
30
1
29
2
21
9
20
3
7
21
1
6
16
6
2
130
76
10
2

Highest AQI recorded in

January

80AQI

Lowest AQI recorded in

July

34AQI

202054AQI

9
4
4
11
6
3
15
14
16
20
10
20
9
23
6
1
24
7
21
8
1
10
15
4
2
148
101
12
2

Highest AQI recorded in

April

80AQI

Lowest AQI recorded in

August

41AQI

Most & Least Polluted Years Over the Last 6 Years

Most Polluted Year Recorded
2023(Avg.)
84AQI
Least Polluted Year Recorded
2021(Avg.)
51AQI

Daishan Environmental Protection Building's annual 2025 AQI (63) shows an average percentage change of 9.2% (worsened AQI) compared to previous years: 2020 (54), 2021 (51), 2022 (53), 2023 (84), 2024 (55).