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Chengnan Primary School, 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

Chengnan Primary School, Linhai, Zhejiang, China

2021
2022
2023
2024
2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
12th Aug 2024
75AQI
Lowest AQI recorded on
6th Aug 2021
20AQI

Same Day Analysis (20th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 50 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: 20th Aug - 21st Aug 2025

Chengnan Primary School, Linhai, Zhejiang, China

AQI
Day
Night
.

5 AM20th Aug 2025

6 PM

4 AM21st Aug 2025

Day time
Avg. Highest Time
6PM20th Aug

64AQI

Avg. Lowest Time
1PM20th Aug

44AQI

Night time
Avg. Highest Time
7PM20th Aug

57AQI

Avg. Lowest Time
2AM21st Aug

50AQI

In the last 24 hours,

Chengnan Primary School's AQI reached its highest point of 64 at 6 PM during the Day, while the lowest point, 44, was recorded at 1 PM during the Day between 20th Aug and 21st Aug 2025.

Day & Night AQI Trend : Jul - Aug 2025

Chengnan Primary School, Linhai, Zhejiang, China

JulAug
22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 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
Day
Night
22nd Jul 2025525 AMAQI
22nd Jul 2025526 AMAQI
22nd Jul 2025527 AMAQI
22nd Jul 2025308 AMAQI
22nd Jul 2025279 AMAQI
22nd Jul 20252410 AMAQI
22nd Jul 20252511 AMAQI
22nd Jul 20252512 PMAQI
22nd Jul 2025291 PMAQI
22nd Jul 2025282 PMAQI
22nd Jul 2025303 PMAQI
22nd Jul 2025324 PMAQI
22nd Jul 2025325 PMAQI
22nd Jul 2025346 PMAQI
22nd Jul 2025427 PMAQI
22nd Jul 2025488 PMAQI
22nd Jul 2025469 PMAQI
22nd Jul 20254410 PMAQI
22nd Jul 20254411 PMAQI
23rd Jul 20254512 AMAQI
23rd Jul 2025511 AMAQI
23rd Jul 2025522 AMAQI
23rd Jul 2025503 AMAQI
23rd Jul 2025504 AMAQI

26°C23/30°C

23rd Jul 2025505 AMAQI
23rd Jul 2025496 AMAQI
23rd Jul 2025497 AMAQI
23rd Jul 2025328 AMAQI
23rd Jul 2025299 AMAQI
23rd Jul 20252910 AMAQI
23rd Jul 20252711 AMAQI
23rd Jul 20253012 PMAQI
23rd Jul 2025331 PMAQI
23rd Jul 2025322 PMAQI
23rd Jul 2025303 PMAQI
23rd Jul 2025354 PMAQI
23rd Jul 2025335 PMAQI
23rd Jul 2025336 PMAQI
23rd Jul 2025407 PMAQI
23rd Jul 2025428 PMAQI
23rd Jul 2025449 PMAQI
23rd Jul 20254110 PMAQI
23rd Jul 20253911 PMAQI
24th Jul 20254212 AMAQI
24th Jul 2025421 AMAQI
24th Jul 2025492 AMAQI
24th Jul 2025493 AMAQI
24th Jul 2025484 AMAQI

27°C23/32°C

24th Jul 2025485 AMAQI
24th Jul 2025486 AMAQI
24th Jul 2025487 AMAQI
24th Jul 2025388 AMAQI
24th Jul 2025349 AMAQI
24th Jul 20253210 AMAQI
24th Jul 20253211 AMAQI
24th Jul 20253512 PMAQI
24th Jul 2025351 PMAQI
24th Jul 2025322 PMAQI
24th Jul 2025323 PMAQI
24th Jul 2025344 PMAQI
24th Jul 2025385 PMAQI
24th Jul 2025356 PMAQI
24th Jul 2025407 PMAQI
24th Jul 2025448 PMAQI
24th Jul 2025499 PMAQI
24th Jul 20254810 PMAQI
24th Jul 20254811 PMAQI
25th Jul 20254612 AMAQI
25th Jul 2025461 AMAQI
25th Jul 2025472 AMAQI
25th Jul 2025463 AMAQI
25th Jul 2025464 AMAQI

27°C24/29°C

25th Jul 2025465 AMAQI
25th Jul 2025456 AMAQI
25th Jul 2025457 AMAQI
25th Jul 2025368 AMAQI
25th Jul 2025399 AMAQI
25th Jul 20254210 AMAQI
25th Jul 20254611 AMAQI
25th Jul 20254312 PMAQI
25th Jul 2025421 PMAQI
25th Jul 2025392 PMAQI
25th Jul 2025373 PMAQI
25th Jul 2025344 PMAQI
25th Jul 2025345 PMAQI
25th Jul 2025346 PMAQI
25th Jul 2025367 PMAQI
25th Jul 2025368 PMAQI
25th Jul 2025379 PMAQI
25th Jul 20253610 PMAQI
25th Jul 20253511 PMAQI
26th Jul 20253812 AMAQI
26th Jul 2025461 AMAQI
26th Jul 2025472 AMAQI
26th Jul 2025473 AMAQI
26th Jul 2025484 AMAQI

26°C24/27°C

26th Jul 2025475 AMAQI
26th Jul 2025486 AMAQI
26th Jul 2025487 AMAQI
26th Jul 2025328 AMAQI
26th Jul 2025299 AMAQI
26th Jul 20252610 AMAQI
26th Jul 20253011 AMAQI
26th Jul 20253212 PMAQI
26th Jul 2025301 PMAQI
26th Jul 2025332 PMAQI
26th Jul 2025293 PMAQI
26th Jul 2025314 PMAQI
26th Jul 2025305 PMAQI
26th Jul 2025336 PMAQI
26th Jul 2025397 PMAQI
26th Jul 2025418 PMAQI
26th Jul 2025429 PMAQI
26th Jul 20254010 PMAQI
26th Jul 20254211 PMAQI
27th Jul 20254012 AMAQI
27th Jul 2025421 AMAQI
27th Jul 2025462 AMAQI
27th Jul 2025453 AMAQI
27th Jul 2025444 AMAQI

27°C25/30°C

27th Jul 2025455 AMAQI
27th Jul 2025446 AMAQI
27th Jul 2025467 AMAQI
27th Jul 2025408 AMAQI
27th Jul 2025389 AMAQI
27th Jul 20254010 AMAQI
27th Jul 20253811 AMAQI
27th Jul 20253812 PMAQI
27th Jul 2025361 PMAQI
27th Jul 2025392 PMAQI
27th Jul 2025353 PMAQI
27th Jul 2025374 PMAQI
27th Jul 2025375 PMAQI
27th Jul 2025406 PMAQI
27th Jul 2025447 PMAQI
27th Jul 2025448 PMAQI
27th Jul 2025419 PMAQI
27th Jul 20254010 PMAQI
27th Jul 20254011 PMAQI
28th Jul 20253812 AMAQI
28th Jul 2025441 AMAQI
28th Jul 2025462 AMAQI
28th Jul 2025463 AMAQI
28th Jul 2025424 AMAQI

27°C24/30°C

28th Jul 2025425 AMAQI
28th Jul 2025426 AMAQI
28th Jul 2025427 AMAQI
28th Jul 2025348 AMAQI
28th Jul 2025329 AMAQI
28th Jul 20253210 AMAQI
28th Jul 20253211 AMAQI
28th Jul 20253212 PMAQI
28th Jul 2025301 PMAQI
28th Jul 2025302 PMAQI
28th Jul 2025283 PMAQI
28th Jul 2025304 PMAQI
28th Jul 2025345 PMAQI
28th Jul 2025376 PMAQI
28th Jul 2025407 PMAQI
28th Jul 2025398 PMAQI
28th Jul 2025409 PMAQI
28th Jul 20254010 PMAQI
28th Jul 20254211 PMAQI
29th Jul 20254212 AMAQI
29th Jul 2025421 AMAQI
29th Jul 2025442 AMAQI
29th Jul 2025423 AMAQI
29th Jul 2025404 AMAQI

26°C24/29°C

29th Jul 2025415 AMAQI
29th Jul 2025406 AMAQI
29th Jul 2025387 AMAQI
29th Jul 2025368 AMAQI
29th Jul 2025389 AMAQI
29th Jul 20253710 AMAQI
29th Jul 20253911 AMAQI
29th Jul 20253612 PMAQI
29th Jul 2025391 PMAQI
29th Jul 2025402 PMAQI
29th Jul 2025383 PMAQI
29th Jul 2025364 PMAQI
29th Jul 2025385 PMAQI
29th Jul 2025306 PMAQI
29th Jul 2025327 PMAQI
29th Jul 2025388 PMAQI
29th Jul 2025419 PMAQI
29th Jul 20254010 PMAQI
29th Jul 20254011 PMAQI
30th Jul 20253812 AMAQI
30th Jul 2025411 AMAQI
30th Jul 2025442 AMAQI
30th Jul 2025443 AMAQI
30th Jul 2025434 AMAQI

25°C23/28°C

30th Jul 2025445 AMAQI
30th Jul 2025446 AMAQI
30th Jul 2025437 AMAQI
30th Jul 2025388 AMAQI
30th Jul 2025399 AMAQI
30th Jul 20253910 AMAQI
30th Jul 20254011 AMAQI
30th Jul 20253912 PMAQI
30th Jul 2025381 PMAQI
30th Jul 2025382 PMAQI
30th Jul 2025343 PMAQI
30th Jul 2025364 PMAQI
30th Jul 2025375 PMAQI
30th Jul 2025376 PMAQI
30th Jul 2025407 PMAQI
30th Jul 2025398 PMAQI
30th Jul 2025389 PMAQI
30th Jul 20253710 PMAQI
30th Jul 20253311 PMAQI
31st Jul 20253612 AMAQI
31st Jul 2025401 AMAQI
31st Jul 2025412 AMAQI
31st Jul 2025423 AMAQI
31st Jul 2025424 AMAQI

25°C23/26°C

31st Jul 2025425 AMAQI
31st Jul 2025426 AMAQI
31st Jul 2025427 AMAQI
31st Jul 2025428 AMAQI
31st Jul 2025429 AMAQI
31st Jul 20254110 AMAQI
31st Jul 20253411 AMAQI
31st Jul 20253812 PMAQI
31st Jul 2025441 PMAQI
31st Jul 2025462 PMAQI
31st Jul 2025523 PMAQI
31st Jul 2025484 PMAQI
31st Jul 2025475 PMAQI
31st Jul 2025546 PMAQI
31st Jul 2025547 PMAQI
31st Jul 2025538 PMAQI
31st Jul 2025529 PMAQI
31st Jul 20255310 PMAQI
31st Jul 20255311 PMAQI
1st Aug 20254612 AMAQI
1st Aug 2025401 AMAQI
1st Aug 2025422 AMAQI
1st Aug 2025443 AMAQI
1st Aug 2025434 AMAQI

27°C21/33°C

1st Aug 2025445 AMAQI
1st Aug 2025446 AMAQI
1st Aug 2025487 AMAQI
1st Aug 2025528 AMAQI
1st Aug 2025579 AMAQI
1st Aug 20255710 AMAQI
1st Aug 20255511 AMAQI
1st Aug 20255812 PMAQI
1st Aug 2025561 PMAQI
1st Aug 2025542 PMAQI
1st Aug 2025573 PMAQI
1st Aug 2025584 PMAQI
1st Aug 2025585 PMAQI
1st Aug 2025556 PMAQI
1st Aug 2025577 PMAQI
1st Aug 2025588 PMAQI
1st Aug 2025599 PMAQI
1st Aug 20255710 PMAQI
1st Aug 20256011 PMAQI
2nd Aug 20255312 AMAQI
2nd Aug 2025491 AMAQI
2nd Aug 2025472 AMAQI
2nd Aug 2025513 AMAQI
2nd Aug 2025524 AMAQI

27°C23/34°C

2nd Aug 2025525 AMAQI
2nd Aug 2025526 AMAQI
2nd Aug 2025517 AMAQI
2nd Aug 2025628 AMAQI
2nd Aug 2025669 AMAQI
2nd Aug 20256310 AMAQI
2nd Aug 20256211 AMAQI
2nd Aug 20256612 PMAQI
2nd Aug 2025661 PMAQI
2nd Aug 2025652 PMAQI
2nd Aug 2025653 PMAQI
2nd Aug 2025654 PMAQI
2nd Aug 2025635 PMAQI
2nd Aug 2025636 PMAQI
2nd Aug 2025587 PMAQI
2nd Aug 2025598 PMAQI
2nd Aug 2025599 PMAQI
2nd Aug 20255810 PMAQI
2nd Aug 20255911 PMAQI
3rd Aug 20255612 AMAQI
3rd Aug 2025531 AMAQI
3rd Aug 2025522 AMAQI
3rd Aug 2025543 AMAQI
3rd Aug 2025564 AMAQI

28°C24/35°C

3rd Aug 2025555 AMAQI
3rd Aug 2025566 AMAQI
3rd Aug 2025567 AMAQI
3rd Aug 2025658 AMAQI
3rd Aug 2025679 AMAQI
3rd Aug 20256610 AMAQI
3rd Aug 20257111 AMAQI
3rd Aug 20256212 PMAQI
3rd Aug 2025651 PMAQI
3rd Aug 2025622 PMAQI
3rd Aug 2025643 PMAQI
3rd Aug 2025614 PMAQI
3rd Aug 2025645 PMAQI
3rd Aug 2025626 PMAQI
3rd Aug 2025587 PMAQI
3rd Aug 2025568 PMAQI
3rd Aug 2025589 PMAQI
3rd Aug 20255910 PMAQI
3rd Aug 20255711 PMAQI
4th Aug 20255512 AMAQI
4th Aug 2025541 AMAQI
4th Aug 2025552 AMAQI
4th Aug 2025563 AMAQI
4th Aug 2025564 AMAQI

29°C24/35°C

4th Aug 2025575 AMAQI
4th Aug 2025576 AMAQI
4th Aug 2025567 AMAQI
4th Aug 2025608 AMAQI
4th Aug 2025689 AMAQI
4th Aug 20257610 AMAQI
4th Aug 20256811 AMAQI
4th Aug 20256412 PMAQI
4th Aug 2025701 PMAQI
4th Aug 2025612 PMAQI
4th Aug 2025683 PMAQI
4th Aug 2025594 PMAQI
4th Aug 2025555 PMAQI
4th Aug 2025556 PMAQI
4th Aug 2025567 PMAQI
4th Aug 2025528 PMAQI
4th Aug 2025529 PMAQI
4th Aug 20255410 PMAQI
4th Aug 20255411 PMAQI
5th Aug 20255412 AMAQI
5th Aug 2025561 AMAQI
5th Aug 2025552 AMAQI
5th Aug 2025563 AMAQI
5th Aug 2025574 AMAQI

28°C24/33°C

5th Aug 2025565 AMAQI
5th Aug 2025566 AMAQI
5th Aug 2025577 AMAQI
5th Aug 2025568 AMAQI
5th Aug 2025509 AMAQI
5th Aug 20255010 AMAQI
5th Aug 20254611 AMAQI
5th Aug 20255012 PMAQI
5th Aug 2025461 PMAQI
5th Aug 2025502 PMAQI
5th Aug 2025463 PMAQI
5th Aug 2025504 PMAQI
5th Aug 2025425 PMAQI
5th Aug 2025426 PMAQI
5th Aug 2025507 PMAQI
5th Aug 2025548 PMAQI
5th Aug 2025529 PMAQI
5th Aug 20254910 PMAQI
5th Aug 20255011 PMAQI
6th Aug 20255212 AMAQI
6th Aug 2025541 AMAQI
6th Aug 2025552 AMAQI
6th Aug 2025543 AMAQI
6th Aug 2025544 AMAQI

27°C23/33°C

6th Aug 2025545 AMAQI
6th Aug 2025546 AMAQI
6th Aug 2025547 AMAQI
6th Aug 2025408 AMAQI
6th Aug 2025539 AMAQI
6th Aug 20254810 AMAQI
6th Aug 20254611 AMAQI
6th Aug 20254212 PMAQI
6th Aug 2025441 PMAQI
6th Aug 2025382 PMAQI
6th Aug 2025433 PMAQI
6th Aug 2025384 PMAQI
6th Aug 2025485 PMAQI
6th Aug 2025466 PMAQI
6th Aug 2025527 PMAQI
6th Aug 2025558 PMAQI
6th Aug 2025569 PMAQI
6th Aug 20255410 PMAQI
6th Aug 20255511 PMAQI
7th Aug 20255212 AMAQI
7th Aug 2025541 AMAQI
7th Aug 2025542 AMAQI
7th Aug 2025533 AMAQI
7th Aug 2025524 AMAQI

28°C23/36°C

7th Aug 2025525 AMAQI
7th Aug 2025526 AMAQI
7th Aug 2025527 AMAQI
7th Aug 2025538 AMAQI
7th Aug 2025559 AMAQI
7th Aug 20255210 AMAQI
7th Aug 20254711 AMAQI
7th Aug 20254112 PMAQI
7th Aug 2025481 PMAQI
7th Aug 2025492 PMAQI
7th Aug 2025483 PMAQI
7th Aug 2025524 PMAQI
7th Aug 2025535 PMAQI
7th Aug 2025566 PMAQI
7th Aug 2025547 PMAQI
7th Aug 2025548 PMAQI
7th Aug 2025549 PMAQI
7th Aug 20255510 PMAQI
7th Aug 20255611 PMAQI
8th Aug 20255412 AMAQI
8th Aug 2025531 AMAQI
8th Aug 2025532 AMAQI
8th Aug 2025533 AMAQI
8th Aug 2025534 AMAQI

29°C23/35°C

8th Aug 2025535 AMAQI
8th Aug 2025536 AMAQI
8th Aug 2025537 AMAQI
8th Aug 2025608 AMAQI
8th Aug 2025639 AMAQI
8th Aug 20256810 AMAQI
8th Aug 20256411 AMAQI
8th Aug 20255712 PMAQI
8th Aug 2025551 PMAQI
8th Aug 2025532 PMAQI
8th Aug 2025543 PMAQI
8th Aug 2025534 PMAQI
8th Aug 2025525 PMAQI
8th Aug 2025546 PMAQI
8th Aug 2025567 PMAQI
8th Aug 2025588 PMAQI
8th Aug 2025589 PMAQI
8th Aug 20255810 PMAQI
8th Aug 20255711 PMAQI
9th Aug 20256012 AMAQI
9th Aug 2025531 AMAQI
9th Aug 2025542 AMAQI
9th Aug 2025543 AMAQI
9th Aug 2025544 AMAQI

29°C24/36°C

9th Aug 2025545 AMAQI
9th Aug 2025546 AMAQI
9th Aug 2025547 AMAQI
9th Aug 2025618 AMAQI
9th Aug 2025639 AMAQI
9th Aug 20256410 AMAQI
9th Aug 20256411 AMAQI
9th Aug 20256112 PMAQI
9th Aug 2025621 PMAQI
9th Aug 2025652 PMAQI
9th Aug 2025623 PMAQI
9th Aug 2025634 PMAQI
9th Aug 2025575 PMAQI
9th Aug 2025606 PMAQI
9th Aug 2025607 PMAQI
9th Aug 2025608 PMAQI
9th Aug 2025609 PMAQI
9th Aug 20255910 PMAQI
9th Aug 20255811 PMAQI
10th Aug 20255612 AMAQI
10th Aug 2025551 AMAQI
10th Aug 2025552 AMAQI
10th Aug 2025543 AMAQI
10th Aug 2025534 AMAQI

29°C24/37°C

10th Aug 2025545 AMAQI
10th Aug 2025536 AMAQI
10th Aug 2025547 AMAQI
10th Aug 2025618 AMAQI
10th Aug 2025699 AMAQI
10th Aug 20256710 AMAQI
10th Aug 20256711 AMAQI
10th Aug 20256212 PMAQI
10th Aug 2025631 PMAQI
10th Aug 2025622 PMAQI
10th Aug 2025643 PMAQI
10th Aug 2025624 PMAQI
10th Aug 2025635 PMAQI
10th Aug 2025646 PMAQI
10th Aug 2025667 PMAQI
10th Aug 2025638 PMAQI
10th Aug 2025639 PMAQI
10th Aug 20256510 PMAQI
10th Aug 20256311 PMAQI
11th Aug 20256212 AMAQI
11th Aug 2025561 AMAQI
11th Aug 2025552 AMAQI
11th Aug 2025573 AMAQI
11th Aug 2025604 AMAQI

29°C25/34°C

11th Aug 2025585 AMAQI
11th Aug 2025596 AMAQI
11th Aug 2025597 AMAQI
11th Aug 2025738 AMAQI
11th Aug 2025699 AMAQI
11th Aug 20257210 AMAQI
11th Aug 20256711 AMAQI
11th Aug 20257012 PMAQI
11th Aug 2025711 PMAQI
11th Aug 2025612 PMAQI
11th Aug 2025603 PMAQI
11th Aug 2025624 PMAQI
11th Aug 2025615 PMAQI
11th Aug 2025586 PMAQI
11th Aug 2025567 PMAQI
11th Aug 2025568 PMAQI
11th Aug 2025559 PMAQI
11th Aug 20255610 PMAQI
11th Aug 20255611 PMAQI
12th Aug 20255612 AMAQI
12th Aug 2025561 AMAQI
12th Aug 2025582 AMAQI
12th Aug 2025603 AMAQI
12th Aug 2025594 AMAQI

29°C24/36°C

12th Aug 2025595 AMAQI
12th Aug 2025596 AMAQI
12th Aug 2025617 AMAQI
12th Aug 2025578 AMAQI
12th Aug 2025619 AMAQI
12th Aug 20256010 AMAQI
12th Aug 20255811 AMAQI
12th Aug 20256212 PMAQI
12th Aug 2025591 PMAQI
12th Aug 2025602 PMAQI
12th Aug 2025593 PMAQI
12th Aug 2025544 PMAQI
12th Aug 2025575 PMAQI
12th Aug 2025596 PMAQI
12th Aug 2025547 PMAQI
12th Aug 2025568 PMAQI
12th Aug 2025549 PMAQI
12th Aug 20255410 PMAQI
12th Aug 20255211 PMAQI
13th Aug 20255412 AMAQI
13th Aug 2025581 AMAQI
13th Aug 2025582 AMAQI
13th Aug 2025573 AMAQI
13th Aug 2025584 AMAQI

28°C24/34°C

13th Aug 2025585 AMAQI
13th Aug 2025606 AMAQI
13th Aug 2025597 AMAQI
13th Aug 2025328 AMAQI
13th Aug 2025369 AMAQI
13th Aug 20253610 AMAQI
13th Aug 20252711 AMAQI
13th Aug 20253112 PMAQI
13th Aug 2025431 PMAQI
13th Aug 2025392 PMAQI
13th Aug 2025383 PMAQI
13th Aug 2025384 PMAQI
13th Aug 2025335 PMAQI
13th Aug 2025376 PMAQI
13th Aug 2025467 PMAQI
13th Aug 2025508 PMAQI
13th Aug 2025489 PMAQI
13th Aug 20254910 PMAQI
13th Aug 20254711 PMAQI
14th Aug 20255212 AMAQI
14th Aug 2025581 AMAQI
14th Aug 2025582 AMAQI
14th Aug 2025563 AMAQI
14th Aug 2025554 AMAQI

28°C24/33°C

14th Aug 2025535 AMAQI
14th Aug 2025546 AMAQI
14th Aug 2025557 AMAQI
14th Aug 2025318 AMAQI
14th Aug 2025239 AMAQI
14th Aug 20252410 AMAQI
14th Aug 20253111 AMAQI
14th Aug 20252412 PMAQI
14th Aug 2025251 PMAQI
14th Aug 2025262 PMAQI
14th Aug 2025223 PMAQI
14th Aug 2025224 PMAQI
14th Aug 2025245 PMAQI
14th Aug 2025246 PMAQI
14th Aug 2025367 PMAQI
14th Aug 2025438 PMAQI
14th Aug 2025439 PMAQI
14th Aug 20254210 PMAQI
14th Aug 20254411 PMAQI
15th Aug 20254812 AMAQI
15th Aug 2025541 AMAQI
15th Aug 2025562 AMAQI
15th Aug 2025533 AMAQI
15th Aug 2025524 AMAQI

27°C24/32°C

15th Aug 2025525 AMAQI
15th Aug 2025526 AMAQI
15th Aug 2025527 AMAQI
15th Aug 2025268 AMAQI
15th Aug 2025249 AMAQI
15th Aug 20252210 AMAQI
15th Aug 20252311 AMAQI
15th Aug 20252612 PMAQI
15th Aug 2025241 PMAQI
15th Aug 2025242 PMAQI
15th Aug 2025263 PMAQI
15th Aug 2025244 PMAQI
15th Aug 2025265 PMAQI
15th Aug 2025246 PMAQI
15th Aug 2025377 PMAQI
15th Aug 2025428 PMAQI
15th Aug 2025439 PMAQI
15th Aug 20254010 PMAQI
15th Aug 20253911 PMAQI
16th Aug 20254712 AMAQI
16th Aug 2025531 AMAQI
16th Aug 2025522 AMAQI
16th Aug 2025513 AMAQI
16th Aug 2025504 AMAQI

27°C23/33°C

16th Aug 2025505 AMAQI
16th Aug 2025496 AMAQI
16th Aug 2025507 AMAQI
16th Aug 2025298 AMAQI
16th Aug 2025249 AMAQI
16th Aug 20252410 AMAQI
16th Aug 20252211 AMAQI
16th Aug 20252412 PMAQI
16th Aug 2025261 PMAQI
16th Aug 2025302 PMAQI
16th Aug 2025283 PMAQI
16th Aug 2025354 PMAQI
16th Aug 2025365 PMAQI
16th Aug 2025416 PMAQI
16th Aug 2025427 PMAQI
16th Aug 2025488 PMAQI
16th Aug 2025509 PMAQI
16th Aug 20254810 PMAQI
16th Aug 20255011 PMAQI
17th Aug 20255012 AMAQI
17th Aug 2025501 AMAQI
17th Aug 2025502 AMAQI
17th Aug 2025463 AMAQI
17th Aug 2025474 AMAQI

27°C23/33°C

17th Aug 2025455 AMAQI
17th Aug 2025466 AMAQI
17th Aug 2025447 AMAQI
17th Aug 2025428 AMAQI
17th Aug 2025499 AMAQI
17th Aug 20253810 AMAQI
17th Aug 20254411 AMAQI
17th Aug 20254012 PMAQI
17th Aug 2025461 PMAQI
17th Aug 2025442 PMAQI
17th Aug 2025483 PMAQI
17th Aug 2025474 PMAQI
17th Aug 2025525 PMAQI
17th Aug 2025486 PMAQI
17th Aug 2025527 PMAQI
17th Aug 2025548 PMAQI
17th Aug 2025549 PMAQI
17th Aug 20254610 PMAQI
17th Aug 20254811 PMAQI
18th Aug 20254812 AMAQI
18th Aug 2025461 AMAQI
18th Aug 2025462 AMAQI
18th Aug 2025483 AMAQI
18th Aug 2025464 AMAQI

27°C22/34°C

18th Aug 2025465 AMAQI
18th Aug 2025466 AMAQI
18th Aug 2025477 AMAQI
18th Aug 2025488 AMAQI
18th Aug 2025379 AMAQI
18th Aug 20254310 AMAQI
18th Aug 20254211 AMAQI
18th Aug 20253612 PMAQI
18th Aug 2025461 PMAQI
18th Aug 2025402 PMAQI
18th Aug 2025413 PMAQI
18th Aug 2025454 PMAQI
18th Aug 2025455 PMAQI
18th Aug 2025386 PMAQI
18th Aug 2025447 PMAQI
18th Aug 2025488 PMAQI
18th Aug 2025449 PMAQI
18th Aug 20254310 PMAQI
18th Aug 20254511 PMAQI
19th Aug 20254712 AMAQI
19th Aug 2025481 AMAQI
19th Aug 2025472 AMAQI
19th Aug 2025453 AMAQI
19th Aug 2025464 AMAQI

28°C23/33°C

19th Aug 2025455 AMAQI
19th Aug 2025446 AMAQI
19th Aug 2025467 AMAQI
19th Aug 2025478 AMAQI
19th Aug 2025479 AMAQI
19th Aug 20253810 AMAQI
19th Aug 20254911 AMAQI
19th Aug 20255712 PMAQI
19th Aug 2025561 PMAQI
19th Aug 2025482 PMAQI
19th Aug 2025463 PMAQI
19th Aug 2025484 PMAQI
19th Aug 2025495 PMAQI
19th Aug 2025526 PMAQI
19th Aug 2025507 PMAQI
19th Aug 2025498 PMAQI
19th Aug 2025509 PMAQI
19th Aug 20254610 PMAQI
19th Aug 20255011 PMAQI
20th Aug 20254512 AMAQI
20th Aug 2025501 AMAQI
20th Aug 2025492 AMAQI
20th Aug 2025503 AMAQI
20th Aug 2025504 AMAQI

28°C23/35°C

20th Aug 2025495 AMAQI
20th Aug 2025496 AMAQI
20th Aug 2025497 AMAQI
20th Aug 2025508 AMAQI
20th Aug 2025519 AMAQI
20th Aug 20255010 AMAQI
20th Aug 20254711 AMAQI
20th Aug 20254812 PMAQI
20th Aug 2025441 PMAQI
20th Aug 2025592 PMAQI
20th Aug 2025523 PMAQI
20th Aug 2025584 PMAQI
20th Aug 2025565 PMAQI
20th Aug 2025646 PMAQI
20th Aug 2025577 PMAQI
20th Aug 2025558 PMAQI
20th Aug 2025559 PMAQI
20th Aug 20255410 PMAQI
20th Aug 20255411 PMAQI
21st Aug 20255412 AMAQI
21st Aug 2025521 AMAQI
21st Aug 2025502 AMAQI
21st Aug 2025523 AMAQI
21st Aug 2025524 AMAQI

29°C23/36°C

21st Aug 2025525 AMAQI
5 AM
21st Aug 2025526 AMAQI
21st Aug 2025527 AMAQI
21st Aug 2025548 AMAQI
21st Aug 2025569 AMAQI
21st Aug 20255310 AMAQI
21st Aug 20255611 AMAQI
11 AM
21st Aug 20255812 PMAQI
21st Aug 2025591 PMAQI
21st Aug 2025662 PMAQI
21st Aug 2025443 PMAQI
6 PM
11 PM
4 AM

--°C/°C

Day time
Avg. Highest Time
5 AM - 7 AM

50AQI

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

46AQI

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. 50), while the lowest AQI was between 8 AM to 6 PM (Avg. 46).
Night time
Avg. Highest Time
12 AM - 11 PM

50AQI

10 hours / Day
300 hours / Month
Avg. Lowest Time
12 AM - 11 PM

50AQI

10 hours / Day
300 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 11 PM (Avg. 50), while the lowest AQI was between 12 AM to 11 PM (Avg. 50).

2025 Days Vs Air Quality

Chengnan Primary School, Linhai, Zhejiang, China

2025

18%

42

66%

153

16%

36

0.4%

1

Total number of days with different AQI categories in last 233 days in 2025 (132 days remaining)

Good
42 Days
Moderate
153 Days
Poor
36 Days
Unhealthy
1 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 18%

Health Risk Level:

Extreme

In 2025, 18% of 233 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

Chengnan Primary School, 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
106AQI
2nd January 2025
99AQI
3rd January 2025
106AQI
4th January 2025
86AQI
5th January 2025
122AQI
6th January 2025
107AQI
7th January 2025
141AQI
8th January 2025
140AQI
9th January 2025
93AQI
10th January 2025
93AQI
11th January 2025
104AQI
12th January 2025
111AQI
13th January 2025
134AQI
14th January 2025
111AQI
15th January 2025
92AQI
16th January 2025
96AQI
17th January 2025
111AQI
18th January 2025
107AQI
19th January 2025
112AQI
20th January 2025
141AQI
21st January 2025
152AQI
22nd January 2025
112AQI
23rd January 2025
101AQI
24th January 2025
90AQI
25th January 2025
83AQI
26th January 2025
76AQI
27th January 2025
67AQI
28th January 2025
93AQI
29th January 2025
120AQI
30th January 2025
102AQI
31st January 2025
104AQI
1st February 2025
54AQI
2nd February 2025
92AQI
3rd February 2025
120AQI
4th February 2025
102AQI
5th February 2025
93AQI
6th February 2025
103AQI
7th February 2025
80AQI
8th February 2025
67AQI
9th February 2025
83AQI
10th February 2025
84AQI
11th February 2025
87AQI
12th February 2025
115AQI
13th February 2025
100AQI
14th February 2025
75AQI
15th February 2025
95AQI
16th February 2025
93AQI
17th February 2025
97AQI
18th February 2025
73AQI
19th February 2025
93AQI
20th February 2025
73AQI
21st February 2025
70AQI
22nd February 2025
79AQI
23rd February 2025
114AQI
24th February 2025
131AQI
25th February 2025
134AQI
26th February 2025
147AQI
27th February 2025
138AQI
28th February 2025
102AQI
1st March 2025
94AQI
2nd March 2025
92AQI
3rd March 2025
73AQI
4th March 2025
56AQI
5th March 2025
66AQI
6th March 2025
64AQI
7th March 2025
83AQI
8th March 2025
103AQI
9th March 2025
88AQI
10th March 2025
74AQI
11th March 2025
83AQI
12th March 2025
73AQI
13th March 2025
71AQI
14th March 2025
68AQI
15th March 2025
40AQI
16th March 2025
86AQI
17th March 2025
69AQI
18th March 2025
85AQI
19th March 2025
85AQI
20th March 2025
91AQI
21st March 2025
79AQI
22nd March 2025
85AQI
23rd March 2025
83AQI
24th March 2025
93AQI
25th March 2025
112AQI
26th March 2025
102AQI
27th March 2025
102AQI
28th March 2025
84AQI
29th March 2025
86AQI
30th March 2025
75AQI
31st March 2025
66AQI
1st April 2025
73AQI
2nd April 2025
78AQI
3rd April 2025
95AQI
4th April 2025
72AQI
5th April 2025
84AQI
6th April 2025
83AQI
7th April 2025
84AQI
8th April 2025
84AQI
9th April 2025
81AQI
10th April 2025
74AQI
11th April 2025
80AQI
12th April 2025
120AQI
13th April 2025
92AQI
14th April 2025
103AQI
15th April 2025
75AQI
16th April 2025
83AQI
17th April 2025
87AQI
18th April 2025
85AQI
19th April 2025
72AQI
20th April 2025
104AQI
21st April 2025
72AQI
22nd April 2025
76AQI
23rd April 2025
53AQI
24th April 2025
74AQI
25th April 2025
66AQI
26th April 2025
56AQI
27th April 2025
64AQI
28th April 2025
75AQI
29th April 2025
65AQI
30th April 2025
66AQI
1st May 2025
73AQI
2nd May 2025
70AQI
3rd May 2025
78AQI
4th May 2025
56AQI
5th May 2025
61AQI
6th May 2025
81AQI
7th May 2025
81AQI
8th May 2025
66AQI
9th May 2025
59AQI
10th May 2025
62AQI
11th May 2025
64AQI
12th May 2025
73AQI
13th May 2025
72AQI
14th May 2025
65AQI
15th May 2025
67AQI
16th May 2025
65AQI
17th May 2025
71AQI
18th May 2025
77AQI
19th May 2025
63AQI
20th May 2025
64AQI
21st May 2025
51AQI
22nd May 2025
63AQI
23rd May 2025
46AQI
24th May 2025
74AQI
25th May 2025
79AQI
26th May 2025
67AQI
27th May 2025
68AQI
28th May 2025
61AQI
29th May 2025
60AQI
30th May 2025
71AQI
31st May 2025
73AQI
1st June 2025
62AQI
2nd June 2025
55AQI
3rd June 2025
59AQI
4th June 2025
69AQI
5th June 2025
57AQI
6th June 2025
64AQI
7th June 2025
68AQI
8th June 2025
60AQI
9th June 2025
61AQI
10th June 2025
59AQI
11th June 2025
48AQI
12th June 2025
50AQI
13th June 2025
39AQI
14th June 2025
48AQI
15th June 2025
42AQI
16th June 2025
47AQI
17th June 2025
57AQI
18th June 2025
56AQI
19th June 2025
55AQI
20th June 2025
50AQI
21st June 2025
57AQI
22nd June 2025
61AQI
23rd June 2025
54AQI
24th June 2025
54AQI
25th June 2025
56AQI
26th June 2025
55AQI
27th June 2025
56AQI
28th June 2025
51AQI
29th June 2025
49AQI
30th June 2025
45AQI
1st July 2025
46AQI
2nd July 2025
52AQI
3rd July 2025
53AQI
4th July 2025
52AQI
5th July 2025
49AQI
6th July 2025
44AQI
7th July 2025
40AQI
8th July 2025
44AQI
9th July 2025
44AQI
10th July 2025
50AQI
11th July 2025
47AQI
12th July 2025
47AQI
13th July 2025
52AQI
14th July 2025
58AQI
15th July 2025
60AQI
16th July 2025
60AQI
17th July 2025
61AQI
18th July 2025
56AQI
19th July 2025
46AQI
20th July 2025
45AQI
21st July 2025
41AQI
22nd July 2025
41AQI
23rd July 2025
40AQI
24th July 2025
42AQI
25th July 2025
41AQI
26th July 2025
39AQI
27th July 2025
41AQI
28th July 2025
38AQI
29th July 2025
39AQI
30th July 2025
39AQI
31st July 2025
45AQI
1st August 2025
52AQI
2nd August 2025
58AQI
3rd August 2025
59AQI
4th August 2025
58AQI
5th August 2025
51AQI
6th August 2025
50AQI
7th August 2025
52AQI
8th August 2025
56AQI
9th August 2025
59AQI
10th August 2025
61AQI
11th August 2025
60AQI
12th August 2025
58AQI
13th August 2025
47AQI
14th August 2025
40AQI
15th August 2025
39AQI
16th August 2025
42AQI
17th August 2025
48AQI
18th August 2025
44AQI
19th August 2025
48AQI
20th August 2025
50AQI

107AQI

96AQI

81AQI

79AQI

67AQI

55AQI

47AQI

52AQI

No. of days

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

202574AQI

11
19
1
18
10
1
26
4
27
3
1
30
9
21
22
9
9
11
42
153
36
1

Highest AQI recorded in

January

107AQI

Lowest AQI recorded in

July

47AQI

202470AQI

6
8
6
7
8
4
1
1
1
24
6
6
16
2
5
7
1
29
10
21
5
26
12
17
14
16
1
7
20
3
14
16
1
68
204
40
8
1

Highest AQI recorded in

January

126AQI

Lowest AQI recorded in

May

47AQI

202370AQI

3
10
13
1
8
17
3
3
23
1
10
4
2
15
1
5
17
1
16
13
1
9
7
3
27
5
15
3
1
12
2
21
5
1
58
187
31
2

Highest AQI recorded in

January

94AQI

Lowest AQI recorded in

August

49AQI

202275AQI

5
11
7
8
2
14
4
1
8
21
2
3
22
4
6
23
2
16
14
8
13
1
7
19
2
4
26
1
2
16
12
4
21
6
66
200
40
9

Highest AQI recorded in

January

106AQI

Lowest AQI recorded in

August

48AQI

202171AQI

6
11
3
2
8
1
1
24
6
1
23
5
1
6
24
1
13
17
19
12
20
11
9
20
1
14
15
2
3
21
6
1
10
19
1
89
191
52
5

Highest AQI recorded in

January

112AQI

Lowest AQI recorded in

July

43AQI

202070AQI

5
8
15
6
3
15
9
21
7
23
16
13
7
22
1
3
26
2
3
22
5
1
14
12
4
54
179
26
4

Highest AQI recorded in

December

102AQI

Lowest AQI recorded in

August

50AQI

Most & Least Polluted Years Over the Last 6 Years

Most Polluted Year Recorded
2022(Avg.)
75AQI
Least Polluted Year Recorded
2023(Avg.)
70AQI

Chengnan Primary School's annual 2025 AQI (74) shows an average percentage change of 3.8% (worsened AQI) compared to previous years: 2020 (70), 2021 (71), 2022 (75), 2023 (70), 2024 (70).