Country Background

City Water Company Sub Station, Wancheng, Hainan, 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

City Water Company Sub Station, Wancheng, Hainan, China

2024
2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
3rd Aug 2025
57AQI
Lowest AQI recorded on
1st Aug 2024
29AQI


Same Day Analysis (7th August ):
On this day, AQI across the 2 years varied significantly: 2025 ranks 1st highest AQI at 52 of Moderate air quality on the same day.

Download 2024 Annual Data

World Air Quality Report

Globe

Day & Night AQI Trend: 8th Aug - 9th Aug 2025

City Water Company Sub Station, Wancheng, Hainan, China

AQI
Day
Night
.

6 AM8th Aug 2025

7 PM

5 AM9th Aug 2025

Day time
Avg. Highest Time
12AMNaNth undefined

AQI

Avg. Lowest Time
12AMNaNth undefined

AQI

Night time
Avg. Highest Time
6AM8th Aug

54AQI

Avg. Lowest Time
3PM8th Aug

30AQI

In the last 24 hours,

City Water Company Sub Station's AQI reached its highest point of 54 at 6 AM during the Night, while the lowest point, undefined, was recorded at 5 AM during the Night between 8th Aug and 9th Aug 2025.

Day & Night AQI Trend : Jul - Aug 2025

City Water Company Sub Station, Wancheng, Hainan, China

JulAug
10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th
Day
Night
10th Jul 2025396 AMAQI
10th Jul 2025387 AMAQI
10th Jul 2025488 AMAQI
10th Jul 2025509 AMAQI
10th Jul 20255410 AMAQI
10th Jul 20255411 AMAQI
10th Jul 20255412 PMAQI
10th Jul 2025541 PMAQI
10th Jul 2025542 PMAQI
10th Jul 2025543 PMAQI
10th Jul 2025494 PMAQI
10th Jul 2025445 PMAQI
10th Jul 2025416 PMAQI
10th Jul 2025427 PMAQI
10th Jul 2025418 PMAQI
10th Jul 2025419 PMAQI
10th Jul 20254110 PMAQI
10th Jul 20254811 PMAQI
11th Jul 20254412 AMAQI
11th Jul 2025421 AMAQI
11th Jul 2025452 AMAQI
11th Jul 2025433 AMAQI
11th Jul 2025484 AMAQI
11th Jul 2025465 AMAQI

28°C26/31°C

11th Jul 2025476 AMAQI
11th Jul 2025487 AMAQI
11th Jul 2025488 AMAQI
11th Jul 2025389 AMAQI
11th Jul 20254110 AMAQI
11th Jul 20254911 AMAQI
11th Jul 20254712 PMAQI
11th Jul 2025471 PMAQI
11th Jul 2025472 PMAQI
11th Jul 2025513 PMAQI
11th Jul 2025514 PMAQI
11th Jul 2025455 PMAQI
11th Jul 2025446 PMAQI
11th Jul 2025417 PMAQI
11th Jul 2025478 PMAQI
11th Jul 2025469 PMAQI
11th Jul 20254410 PMAQI
11th Jul 20254411 PMAQI
12th Jul 20254612 AMAQI
12th Jul 2025461 AMAQI
12th Jul 2025492 AMAQI
12th Jul 2025483 AMAQI
12th Jul 2025484 AMAQI
12th Jul 2025475 AMAQI

28°C25/30°C

12th Jul 2025496 AMAQI
12th Jul 2025477 AMAQI
12th Jul 2025468 AMAQI
12th Jul 2025489 AMAQI
12th Jul 20254510 AMAQI
12th Jul 20254611 AMAQI
12th Jul 20254812 PMAQI
12th Jul 2025431 PMAQI
12th Jul 2025382 PMAQI
12th Jul 2025403 PMAQI
12th Jul 2025384 PMAQI
12th Jul 2025395 PMAQI
12th Jul 2025426 PMAQI
12th Jul 2025427 PMAQI
12th Jul 2025468 PMAQI
12th Jul 2025469 PMAQI
12th Jul 20254610 PMAQI
12th Jul 20255111 PMAQI
13th Jul 20255312 AMAQI
13th Jul 2025521 AMAQI
13th Jul 2025502 AMAQI
13th Jul 2025483 AMAQI
13th Jul 2025494 AMAQI
13th Jul 2025495 AMAQI

28°C26/31°C

13th Jul 2025486 AMAQI
13th Jul 2025487 AMAQI
13th Jul 2025498 AMAQI
13th Jul 2025469 AMAQI
13th Jul 20254910 AMAQI
13th Jul 20254911 AMAQI
13th Jul 20254812 PMAQI
13th Jul 2025461 PMAQI
13th Jul 2025482 PMAQI
13th Jul 2025483 PMAQI
13th Jul 2025484 PMAQI
13th Jul 2025465 PMAQI
13th Jul 2025476 PMAQI
13th Jul 2025497 PMAQI
13th Jul 2025518 PMAQI
13th Jul 2025509 PMAQI
13th Jul 20255010 PMAQI
13th Jul 20255111 PMAQI
14th Jul 20254612 AMAQI
14th Jul 2025491 AMAQI
14th Jul 2025532 AMAQI
14th Jul 2025523 AMAQI
14th Jul 2025524 AMAQI
14th Jul 2025515 AMAQI

28°C26/32°C

14th Jul 2025506 AMAQI
14th Jul 2025527 AMAQI
14th Jul 2025458 AMAQI
14th Jul 2025439 AMAQI
14th Jul 20254510 AMAQI
14th Jul 20254811 AMAQI
14th Jul 20254712 PMAQI
14th Jul 2025471 PMAQI
14th Jul 2025462 PMAQI
14th Jul 2025483 PMAQI
14th Jul 2025504 PMAQI
14th Jul 2025525 PMAQI
14th Jul 2025526 PMAQI
14th Jul 2025507 PMAQI
14th Jul 2025528 PMAQI
14th Jul 2025529 PMAQI
14th Jul 20255210 PMAQI
14th Jul 20255211 PMAQI
15th Jul 20255212 AMAQI
15th Jul 2025521 AMAQI
15th Jul 2025502 AMAQI
15th Jul 2025503 AMAQI
15th Jul 2025494 AMAQI
15th Jul 2025495 AMAQI

28°C26/32°C

15th Jul 2025516 AMAQI
15th Jul 2025527 AMAQI
15th Jul 2025578 AMAQI
15th Jul 2025599 AMAQI
15th Jul 20255610 AMAQI
15th Jul 20255311 AMAQI
15th Jul 20255012 PMAQI
15th Jul 2025431 PMAQI
15th Jul 2025452 PMAQI
15th Jul 2025483 PMAQI
15th Jul 2025454 PMAQI
15th Jul 2025425 PMAQI
15th Jul 2025436 PMAQI
15th Jul 2025477 PMAQI
15th Jul 2025518 PMAQI
15th Jul 2025529 PMAQI
15th Jul 20255210 PMAQI
15th Jul 20255111 PMAQI
16th Jul 20255112 AMAQI
16th Jul 2025511 AMAQI
16th Jul 2025522 AMAQI
16th Jul 2025523 AMAQI
16th Jul 2025524 AMAQI
16th Jul 2025525 AMAQI

29°C26/32°C

16th Jul 2025526 AMAQI
16th Jul 2025527 AMAQI
16th Jul 2025458 AMAQI
16th Jul 2025449 AMAQI
16th Jul 20254410 AMAQI
16th Jul 20254911 AMAQI
16th Jul 20254912 PMAQI
16th Jul 2025481 PMAQI
16th Jul 2025452 PMAQI
16th Jul 2025463 PMAQI
16th Jul 2025464 PMAQI
16th Jul 2025485 PMAQI
16th Jul 2025466 PMAQI
16th Jul 2025507 PMAQI
16th Jul 2025498 PMAQI
16th Jul 2025529 PMAQI
16th Jul 20255010 PMAQI
16th Jul 20255011 PMAQI
17th Jul 20254612 AMAQI
17th Jul 2025501 AMAQI
17th Jul 2025522 AMAQI
17th Jul 2025523 AMAQI
17th Jul 2025524 AMAQI
17th Jul 2025525 AMAQI

29°C27/33°C

17th Jul 2025526 AMAQI
17th Jul 2025527 AMAQI
17th Jul 2025548 AMAQI
17th Jul 2025569 AMAQI
17th Jul 20255810 AMAQI
17th Jul 20255411 AMAQI
17th Jul 20254912 PMAQI
17th Jul 2025521 PMAQI
17th Jul 2025392 PMAQI
17th Jul 2025363 PMAQI
17th Jul 2025384 PMAQI
17th Jul 2025385 PMAQI
17th Jul 2025406 PMAQI
17th Jul 2025467 PMAQI
17th Jul 2025488 PMAQI
17th Jul 2025519 PMAQI
17th Jul 20255210 PMAQI
17th Jul 20255411 PMAQI
18th Jul 20255312 AMAQI
18th Jul 2025521 AMAQI
18th Jul 2025522 AMAQI
18th Jul 2025523 AMAQI
18th Jul 2025524 AMAQI
18th Jul 2025525 AMAQI

29°C27/33°C

18th Jul 2025526 AMAQI
18th Jul 2025527 AMAQI
18th Jul 2025528 AMAQI
18th Jul 2025539 AMAQI
18th Jul 20255210 AMAQI
18th Jul 20255111 AMAQI
18th Jul 20254312 PMAQI
18th Jul 2025441 PMAQI
18th Jul 2025482 PMAQI
18th Jul 2025453 PMAQI
18th Jul 2025464 PMAQI
18th Jul 2025485 PMAQI
18th Jul 2025446 PMAQI
18th Jul 2025507 PMAQI
18th Jul 2025518 PMAQI
18th Jul 2025549 PMAQI
18th Jul 20255610 PMAQI
18th Jul 20255811 PMAQI
19th Jul 20256112 AMAQI
19th Jul 2025581 AMAQI
19th Jul 2025532 AMAQI
19th Jul 2025523 AMAQI
19th Jul 2025524 AMAQI
19th Jul 2025525 AMAQI

29°C26/33°C

19th Jul 2025526 AMAQI
19th Jul 2025527 AMAQI
19th Jul 2025438 AMAQI
19th Jul 2025419 AMAQI
19th Jul 20255310 AMAQI
19th Jul 20255411 AMAQI
19th Jul 20255612 PMAQI
19th Jul 2025571 PMAQI
19th Jul 2025552 PMAQI
19th Jul 2025443 PMAQI
19th Jul 2025424 PMAQI
19th Jul 2025425 PMAQI
19th Jul 2025376 PMAQI
19th Jul 2025457 PMAQI
19th Jul 2025518 PMAQI
19th Jul 2025499 PMAQI
19th Jul 20255010 PMAQI
19th Jul 20255211 PMAQI
20th Jul 20255212 AMAQI
20th Jul 2025541 AMAQI
20th Jul 2025552 AMAQI
20th Jul 2025543 AMAQI
20th Jul 2025544 AMAQI
20th Jul 2025545 AMAQI

27°C25/28°C

20th Jul 2025546 AMAQI
20th Jul 2025547 AMAQI
20th Jul 2025408 AMAQI
20th Jul 2025309 AMAQI
20th Jul 20254410 AMAQI
20th Jul 20255611 AMAQI
20th Jul 20255512 PMAQI
20th Jul 2025401 PMAQI
20th Jul 2025262 PMAQI
20th Jul 2025263 PMAQI
20th Jul 2025244 PMAQI
20th Jul 2025245 PMAQI
20th Jul 2025256 PMAQI
20th Jul 2025367 PMAQI
20th Jul 2025488 PMAQI
20th Jul 2025489 PMAQI
20th Jul 20254810 PMAQI
20th Jul 20254611 PMAQI
21st Jul 20254512 AMAQI
21st Jul 2025501 AMAQI
21st Jul 2025542 AMAQI
21st Jul 2025543 AMAQI
21st Jul 2025524 AMAQI
21st Jul 2025525 AMAQI

27°C25/30°C

21st Jul 2025526 AMAQI
21st Jul 2025527 AMAQI
21st Jul 2025278 AMAQI
21st Jul 2025229 AMAQI
21st Jul 20252210 AMAQI
21st Jul 20252211 AMAQI
21st Jul 20252212 PMAQI
21st Jul 2025201 PMAQI
21st Jul 2025202 PMAQI
21st Jul 2025223 PMAQI
21st Jul 2025224 PMAQI
21st Jul 2025225 PMAQI
21st Jul 2025226 PMAQI
21st Jul 2025337 PMAQI
21st Jul 2025448 PMAQI
21st Jul 2025469 PMAQI
21st Jul 20254610 PMAQI
21st Jul 20254411 PMAQI
22nd Jul 20254312 AMAQI
22nd Jul 2025481 AMAQI
22nd Jul 2025522 AMAQI
22nd Jul 2025493 AMAQI
22nd Jul 2025474 AMAQI
22nd Jul 2025475 AMAQI

27°C26/28°C

22nd Jul 2025466 AMAQI
22nd Jul 2025467 AMAQI
22nd Jul 2025298 AMAQI
22nd Jul 2025269 AMAQI
22nd Jul 20253410 AMAQI
22nd Jul 20253411 AMAQI
22nd Jul 20253412 PMAQI
22nd Jul 2025311 PMAQI
22nd Jul 2025302 PMAQI
22nd Jul 2025313 PMAQI
22nd Jul 2025344 PMAQI
22nd Jul 2025335 PMAQI
22nd Jul 2025306 PMAQI
22nd Jul 2025357 PMAQI
22nd Jul 2025418 PMAQI
22nd Jul 2025419 PMAQI
22nd Jul 20254210 PMAQI
22nd Jul 20254211 PMAQI
23rd Jul 20254012 AMAQI
23rd Jul 2025461 AMAQI
23rd Jul 2025482 AMAQI
23rd Jul 2025473 AMAQI
23rd Jul 2025444 AMAQI
23rd Jul 2025435 AMAQI

28°C27/30°C

23rd Jul 2025436 AMAQI
23rd Jul 2025437 AMAQI
23rd Jul 2025438 AMAQI
23rd Jul 2025479 AMAQI
23rd Jul 20254110 AMAQI
23rd Jul 20254211 AMAQI
23rd Jul 20254212 PMAQI
23rd Jul 2025311 PMAQI
23rd Jul 2025322 PMAQI
23rd Jul 2025343 PMAQI
23rd Jul 2025284 PMAQI
23rd Jul 2025235 PMAQI
23rd Jul 2025236 PMAQI
23rd Jul 2025327 PMAQI
23rd Jul 2025378 PMAQI
23rd Jul 2025389 PMAQI
23rd Jul 20253710 PMAQI
23rd Jul 20253711 PMAQI
24th Jul 20253612 AMAQI
24th Jul 2025371 AMAQI
24th Jul 2025362 AMAQI
24th Jul 2025403 AMAQI
24th Jul 2025454 AMAQI
24th Jul 2025465 AMAQI

28°C26/31°C

24th Jul 2025476 AMAQI
24th Jul 2025467 AMAQI
24th Jul 2025388 AMAQI
24th Jul 2025329 AMAQI
24th Jul 20254010 AMAQI
24th Jul 20254111 AMAQI
24th Jul 20254212 PMAQI
24th Jul 2025401 PMAQI
24th Jul 2025422 PMAQI
24th Jul 2025343 PMAQI
24th Jul 2025184 PMAQI
24th Jul 2025175 PMAQI
24th Jul 2025206 PMAQI
24th Jul 2025257 PMAQI
24th Jul 2025348 PMAQI
24th Jul 2025379 PMAQI
24th Jul 20253310 PMAQI
24th Jul 20252811 PMAQI
25th Jul 20252812 AMAQI
25th Jul 2025321 AMAQI
25th Jul 2025432 AMAQI
25th Jul 2025423 AMAQI
25th Jul 2025424 AMAQI
25th Jul 2025425 AMAQI

27°C25/30°C

25th Jul 2025426 AMAQI
25th Jul 2025427 AMAQI
25th Jul 2025298 AMAQI
25th Jul 2025329 AMAQI
25th Jul 20252710 AMAQI
25th Jul 20252811 AMAQI
25th Jul 20252712 PMAQI
25th Jul 2025261 PMAQI
25th Jul 2025252 PMAQI
25th Jul 2025233 PMAQI
25th Jul 2025264 PMAQI
25th Jul 2025315 PMAQI
25th Jul 2025406 PMAQI
25th Jul 2025477 PMAQI
25th Jul 2025498 PMAQI
25th Jul 2025469 PMAQI
25th Jul 20254510 PMAQI
25th Jul 20254211 PMAQI
26th Jul 20254012 AMAQI
26th Jul 2025431 AMAQI
26th Jul 2025452 AMAQI
26th Jul 2025463 AMAQI
26th Jul 2025474 AMAQI
26th Jul 2025465 AMAQI

27°C25/31°C

26th Jul 2025466 AMAQI
26th Jul 2025447 AMAQI
26th Jul 2025398 AMAQI
26th Jul 2025509 AMAQI
26th Jul 20253810 AMAQI
26th Jul 20253311 AMAQI
26th Jul 20253212 PMAQI
26th Jul 2025321 PMAQI
26th Jul 2025252 PMAQI
26th Jul 2025233 PMAQI
26th Jul 2025214 PMAQI
26th Jul 2025225 PMAQI
26th Jul 2025226 PMAQI
26th Jul 2025287 PMAQI
26th Jul 2025378 PMAQI
26th Jul 2025389 PMAQI
26th Jul 20253910 PMAQI
26th Jul 20254011 PMAQI
27th Jul 20253912 AMAQI
27th Jul 2025421 AMAQI
27th Jul 2025472 AMAQI
27th Jul 2025463 AMAQI
27th Jul 2025434 AMAQI
27th Jul 2025445 AMAQI

28°C25/31°C

27th Jul 2025436 AMAQI
27th Jul 2025447 AMAQI
27th Jul 2025388 AMAQI
27th Jul 2025309 AMAQI
27th Jul 20253210 AMAQI
27th Jul 20253311 AMAQI
27th Jul 20253212 PMAQI
27th Jul 2025321 PMAQI
27th Jul 2025362 PMAQI
27th Jul 2025383 PMAQI
27th Jul 2025354 PMAQI
27th Jul 2025345 PMAQI
27th Jul 2025306 PMAQI
27th Jul 2025297 PMAQI
27th Jul 2025388 PMAQI
27th Jul 2025429 PMAQI
27th Jul 20253910 PMAQI
27th Jul 20253911 PMAQI
28th Jul 20254012 AMAQI
28th Jul 2025401 AMAQI
28th Jul 2025442 AMAQI
28th Jul 2025433 AMAQI
28th Jul 2025424 AMAQI
28th Jul 2025435 AMAQI

28°C25/31°C

28th Jul 2025426 AMAQI
28th Jul 2025427 AMAQI
28th Jul 2025258 AMAQI
28th Jul 2025219 AMAQI
28th Jul 20252010 AMAQI
28th Jul 20252111 AMAQI
28th Jul 20252212 PMAQI
28th Jul 2025201 PMAQI
28th Jul 2025182 PMAQI
28th Jul 2025183 PMAQI
28th Jul 2025174 PMAQI
28th Jul 2025175 PMAQI
28th Jul 2025196 PMAQI
28th Jul 2025247 PMAQI
28th Jul 2025298 PMAQI
28th Jul 2025309 PMAQI
28th Jul 20253210 PMAQI
28th Jul 20253611 PMAQI
29th Jul 20253812 AMAQI
29th Jul 2025421 AMAQI
29th Jul 2025452 AMAQI
29th Jul 2025423 AMAQI
29th Jul 2025404 AMAQI
29th Jul 2025395 AMAQI

28°C25/32°C

29th Jul 2025396 AMAQI
29th Jul 2025387 AMAQI
29th Jul 2025248 AMAQI
29th Jul 2025259 AMAQI
29th Jul 20252310 AMAQI
29th Jul 20252411 AMAQI
29th Jul 20252612 PMAQI
29th Jul 2025261 PMAQI
29th Jul 2025282 PMAQI
29th Jul 2025263 PMAQI
29th Jul 2025264 PMAQI
29th Jul 2025235 PMAQI
29th Jul 2025216 PMAQI
29th Jul 2025267 PMAQI
29th Jul 2025328 PMAQI
29th Jul 2025349 PMAQI
29th Jul 20253410 PMAQI
29th Jul 20253711 PMAQI
30th Jul 20253712 AMAQI
30th Jul 2025371 AMAQI
30th Jul 2025372 AMAQI
30th Jul 2025363 AMAQI
30th Jul 2025354 AMAQI
30th Jul 2025415 AMAQI

28°C26/32°C

30th Jul 2025456 AMAQI
30th Jul 2025447 AMAQI
30th Jul 2025378 AMAQI
30th Jul 2025399 AMAQI
30th Jul 20254410 AMAQI
30th Jul 20253411 AMAQI
30th Jul 20253612 PMAQI
30th Jul 2025401 PMAQI
30th Jul 2025462 PMAQI
30th Jul 2025433 PMAQI
30th Jul 2025344 PMAQI
30th Jul 2025365 PMAQI
30th Jul 2025426 PMAQI
30th Jul 2025387 PMAQI
30th Jul 2025368 PMAQI
30th Jul 2025369 PMAQI
30th Jul 20253510 PMAQI
30th Jul 20253411 PMAQI
31st Jul 20254612 AMAQI
31st Jul 2025461 AMAQI
31st Jul 2025432 AMAQI
31st Jul 2025473 AMAQI
31st Jul 2025474 AMAQI
31st Jul 2025475 AMAQI

29°C26/33°C

31st Jul 2025476 AMAQI
31st Jul 2025477 AMAQI
31st Jul 2025478 AMAQI
31st Jul 2025479 AMAQI
31st Jul 20255010 AMAQI
31st Jul 20254111 AMAQI
31st Jul 20253612 PMAQI
31st Jul 2025361 PMAQI
31st Jul 2025382 PMAQI
31st Jul 2025383 PMAQI
31st Jul 2025384 PMAQI
31st Jul 2025405 PMAQI
31st Jul 2025516 PMAQI
31st Jul 2025567 PMAQI
31st Jul 2025528 PMAQI
31st Jul 2025529 PMAQI
31st Jul 20255510 PMAQI
31st Jul 20255611 PMAQI
1st Aug 20255212 AMAQI
1st Aug 2025571 AMAQI
1st Aug 2025562 AMAQI
1st Aug 2025543 AMAQI
1st Aug 2025544 AMAQI
1st Aug 2025555 AMAQI

29°C26/34°C

1st Aug 2025556 AMAQI
1st Aug 2025567 AMAQI
1st Aug 2025548 AMAQI
1st Aug 2025579 AMAQI
1st Aug 20255610 AMAQI
1st Aug 20255511 AMAQI
1st Aug 20255412 PMAQI
1st Aug 2025551 PMAQI
1st Aug 2025562 PMAQI
1st Aug 2025553 PMAQI
1st Aug 2025524 PMAQI
1st Aug 2025545 PMAQI
1st Aug 2025556 PMAQI
1st Aug 2025567 PMAQI
1st Aug 2025568 PMAQI
1st Aug 2025569 PMAQI
1st Aug 20255510 PMAQI
1st Aug 20255611 PMAQI
2nd Aug 20255612 AMAQI
2nd Aug 2025551 AMAQI
2nd Aug 2025562 AMAQI
2nd Aug 2025553 AMAQI
2nd Aug 2025554 AMAQI
2nd Aug 2025555 AMAQI

29°C27/34°C

2nd Aug 2025576 AMAQI
2nd Aug 2025557 AMAQI
2nd Aug 2025538 AMAQI
2nd Aug 2025489 AMAQI
2nd Aug 20254910 AMAQI
2nd Aug 20254811 AMAQI
2nd Aug 20255512 PMAQI
2nd Aug 2025511 PMAQI
2nd Aug 2025582 PMAQI
2nd Aug 2025543 PMAQI
2nd Aug 2025554 PMAQI
2nd Aug 2025555 PMAQI
2nd Aug 2025546 PMAQI
2nd Aug 2025587 PMAQI
2nd Aug 2025598 PMAQI
2nd Aug 2025589 PMAQI
2nd Aug 20255710 PMAQI
2nd Aug 20255811 PMAQI
3rd Aug 20255812 AMAQI
3rd Aug 2025551 AMAQI
3rd Aug 2025552 AMAQI
3rd Aug 2025543 AMAQI
3rd Aug 2025544 AMAQI
3rd Aug 2025545 AMAQI

29°C27/33°C

3rd Aug 2025556 AMAQI
3rd Aug 2025547 AMAQI
3rd Aug 2025568 AMAQI
3rd Aug 2025589 AMAQI
3rd Aug 20256210 AMAQI
3rd Aug 20256011 AMAQI
3rd Aug 20256412 PMAQI
3rd Aug 2025601 PMAQI
3rd Aug 2025582 PMAQI
3rd Aug 2025603 PMAQI
3rd Aug 2025604 PMAQI
3rd Aug 2025585 PMAQI
3rd Aug 2025546 PMAQI
3rd Aug 2025557 PMAQI
3rd Aug 2025568 PMAQI
3rd Aug 2025589 PMAQI
3rd Aug 20255710 PMAQI
3rd Aug 20255811 PMAQI
4th Aug 20255712 AMAQI
4th Aug 2025571 AMAQI
4th Aug 2025562 AMAQI
4th Aug 2025573 AMAQI
4th Aug 2025574 AMAQI
4th Aug 2025575 AMAQI

30°C27/34°C

4th Aug 2025576 AMAQI
4th Aug 2025577 AMAQI
4th Aug 2025588 AMAQI
4th Aug 2025599 AMAQI
4th Aug 20256110 AMAQI
4th Aug 20256011 AMAQI
4th Aug 20255812 PMAQI
4th Aug 2025591 PMAQI
4th Aug 2025562 PMAQI
4th Aug 2025553 PMAQI
4th Aug 2025554 PMAQI
4th Aug 2025535 PMAQI
4th Aug 2025526 PMAQI
4th Aug 2025567 PMAQI
4th Aug 2025568 PMAQI
4th Aug 2025569 PMAQI
4th Aug 20255710 PMAQI
4th Aug 20255611 PMAQI
5th Aug 20255712 AMAQI
5th Aug 2025561 AMAQI
5th Aug 2025572 AMAQI
5th Aug 2025573 AMAQI
5th Aug 2025564 AMAQI
5th Aug 2025575 AMAQI

29°C27/33°C

5th Aug 2025576 AMAQI
5th Aug 2025567 AMAQI
5th Aug 2025608 AMAQI
5th Aug 2025569 AMAQI
5th Aug 20255810 AMAQI
5th Aug 20255611 AMAQI
5th Aug 20255812 PMAQI
5th Aug 2025591 PMAQI
5th Aug 2025552 PMAQI
5th Aug 2025573 PMAQI
5th Aug 2025554 PMAQI
5th Aug 2025585 PMAQI
5th Aug 2025426 PMAQI
5th Aug 2025447 PMAQI
5th Aug 2025498 PMAQI
5th Aug 2025509 PMAQI
5th Aug 20254810 PMAQI
5th Aug 20255411 PMAQI
6th Aug 20255412 AMAQI
6th Aug 2025561 AMAQI
6th Aug 2025562 AMAQI
6th Aug 2025563 AMAQI
6th Aug 2025574 AMAQI
6th Aug 2025565 AMAQI

29°C27/33°C

6th Aug 2025566 AMAQI
6th Aug 2025577 AMAQI
6th Aug 2025558 AMAQI
6th Aug 2025539 AMAQI
6th Aug 20255510 AMAQI
6th Aug 20255611 AMAQI
6th Aug 20255512 PMAQI
6th Aug 2025581 PMAQI
6th Aug 2025552 PMAQI
6th Aug 2025563 PMAQI
6th Aug 2025564 PMAQI
6th Aug 2025545 PMAQI
6th Aug 2025556 PMAQI
6th Aug 2025567 PMAQI
6th Aug 2025568 PMAQI
6th Aug 2025559 PMAQI
6th Aug 20255510 PMAQI
6th Aug 20255511 PMAQI
7th Aug 20255612 AMAQI
7th Aug 2025561 AMAQI
7th Aug 2025562 AMAQI
7th Aug 2025553 AMAQI
7th Aug 2025554 AMAQI
7th Aug 2025555 AMAQI

29°C27/31°C

7th Aug 2025556 AMAQI
7th Aug 2025547 AMAQI
7th Aug 2025388 AMAQI
7th Aug 2025439 AMAQI
7th Aug 20254910 AMAQI
7th Aug 20255111 AMAQI
7th Aug 20255412 PMAQI
7th Aug 2025521 PMAQI
7th Aug 2025522 PMAQI
7th Aug 2025513 PMAQI
7th Aug 2025514 PMAQI
7th Aug 2025535 PMAQI
7th Aug 2025506 PMAQI
7th Aug 2025467 PMAQI
7th Aug 2025528 PMAQI
7th Aug 2025529 PMAQI
7th Aug 20255110 PMAQI
7th Aug 20254911 PMAQI
8th Aug 20254812 AMAQI
8th Aug 2025521 AMAQI
8th Aug 2025552 AMAQI
8th Aug 2025543 AMAQI
8th Aug 2025544 AMAQI
8th Aug 2025545 AMAQI

28°C27/31°C

8th Aug 2025546 AMAQI
8th Aug 2025547 AMAQI
8th Aug 2025418 AMAQI
8th Aug 2025409 AMAQI
8th Aug 20253910 AMAQI
8th Aug 20253811 AMAQI
8th Aug 20253812 PMAQI
8th Aug 2025391 PMAQI
8th Aug 2025322 PMAQI
8th Aug 2025303 PMAQI
8th Aug 2025324 PMAQI
8th Aug 2025365 PMAQI
8th Aug 2025376 PMAQI
8th Aug 2025407 PMAQI
8th Aug 2025468 PMAQI
8th Aug 2025509 PMAQI
8th Aug 20255110 PMAQI
8th Aug 20254611 PMAQI
9th Aug 20254512 AMAQI

--°C/°C

6 AM
12 PM
7 PM
12 AM
5 AM

--°C/°C

Day time
Avg. Highest Time
6 AM - 7 AM

49AQI

2 hours / Day
60 hours / Month
Avg. Lowest Time
8 AM - 6 PM

42AQI

11 hours / Day
330 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 6 AM to 7 AM (Avg. 49), while the lowest AQI was between 8 AM to 6 PM (Avg. 42).
Night time
Avg. Highest Time
12 AM - 5 AM

49AQI

6 hours / Day
180 hours / Month
Avg. Lowest Time
8 PM - 11 PM

47AQI

4 hours / Day
120 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 5 AM (Avg. 49), while the lowest AQI was between 8 PM to 11 PM (Avg. 47).

2025 Days Vs Air Quality

City Water Company Sub Station, Wancheng, Hainan, China

2025

51%

111

45%

98

5%

10

Total number of days with different AQI categories in last 220 days in 2025 (145 days remaining)

Good
111 Days
Moderate
98 Days
Poor
10 Days
Unhealthy
0 Days
Severe
0 Days
Hazardous
0 Days



Under WHO’s Safe Air Quality Limits: 51%

Health Risk Level:

Considerable

In 2025, 51% of 220 days were within WHO’s safe air quality limits, and 49% exceeded them. The risk of health issues is Considerable, with potential for conditions in sensitive individuals.

Annual Air Quality Insights

City Water Company Sub Station, Wancheng, Hainan, 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
105AQI
2nd January 2025
89AQI
3rd January 2025
100AQI
4th January 2025
94AQI
5th January 2025
108AQI
6th January 2025
115AQI
7th January 2025
92AQI
8th January 2025
94AQI
9th January 2025
103AQI
10th January 2025
109AQI
11th January 2025
90AQI
12th January 2025
86AQI
13th January 2025
73AQI
14th January 2025
71AQI
15th January 2025
79AQI
16th January 2025
90AQI
17th January 2025
81AQI
18th January 2025
84AQI
19th January 2025
89AQI
20th January 2025
88AQI
21st January 2025
78AQI
22nd January 2025
78AQI
23rd January 2025
74AQI
24th January 2025
63AQI
25th January 2025
60AQI
26th January 2025
55AQI
27th January 2025
58AQI
28th January 2025
62AQI
29th January 2025
81AQI
30th January 2025
73AQI
31st January 2025
68AQI
1st February 2025
49AQI
2nd February 2025
45AQI
3rd February 2025
45AQI
4th February 2025
50AQI
5th February 2025
53AQI
6th February 2025
55AQI
7th February 2025
66AQI
8th February 2025
58AQI
9th February 2025
68AQI
10th February 2025
59AQI
11th February 2025
51AQI
12th February 2025
41AQI
13th February 2025
52AQI
14th February 2025
41AQI
15th February 2025
63AQI
16th February 2025
40AQI
17th February 2025
60AQI
18th February 2025
77AQI
19th February 2025
69AQI
20th February 2025
66AQI
21st February 2025
60AQI
22nd February 2025
43AQI
23rd February 2025
46AQI
24th February 2025
48AQI
25th February 2025
49AQI
26th February 2025
67AQI
27th February 2025
62AQI
28th February 2025
56AQI
1st March 2025
55AQI
2nd March 2025
47AQI
3rd March 2025
55AQI
4th March 2025
42AQI
5th March 2025
45AQI
6th March 2025
30AQI
7th March 2025
39AQI
8th March 2025
27AQI
9th March 2025
55AQI
10th March 2025
59AQI
11th March 2025
58AQI
12th March 2025
49AQI
13th March 2025
49AQI
14th March 2025
38AQI
15th March 2025
47AQI
16th March 2025
43AQI
17th March 2025
63AQI
18th March 2025
69AQI
19th March 2025
76AQI
20th March 2025
70AQI
21st March 2025
74AQI
22nd March 2025
75AQI
23rd March 2025
78AQI
24th March 2025
70AQI
25th March 2025
70AQI
26th March 2025
55AQI
27th March 2025
60AQI
28th March 2025
54AQI
29th March 2025
56AQI
30th March 2025
32AQI
31st March 2025
32AQI
1st April 2025
41AQI
2nd April 2025
57AQI
3rd April 2025
53AQI
4th April 2025
54AQI
5th April 2025
59AQI
6th April 2025
43AQI
7th April 2025
59AQI
8th April 2025
54AQI
9th April 2025
63AQI
10th April 2025
61AQI
11th April 2025
56AQI
12th April 2025
56AQI
13th April 2025
112AQI
14th April 2025
111AQI
15th April 2025
114AQI
16th April 2025
108AQI
17th April 2025
102AQI
18th April 2025
72AQI
19th April 2025
56AQI
20th April 2025
54AQI
21st April 2025
57AQI
22nd April 2025
57AQI
23rd April 2025
51AQI
24th April 2025
57AQI
25th April 2025
49AQI
26th April 2025
50AQI
27th April 2025
42AQI
28th April 2025
51AQI
29th April 2025
48AQI
30th April 2025
54AQI
1st May 2025
56AQI
2nd May 2025
58AQI
3rd May 2025
57AQI
4th May 2025
55AQI
5th May 2025
48AQI
6th May 2025
54AQI
7th May 2025
56AQI
8th May 2025
47AQI
9th May 2025
50AQI
10th May 2025
45AQI
11th May 2025
50AQI
12th May 2025
58AQI
13th May 2025
56AQI
14th May 2025
42AQI
15th May 2025
35AQI
16th May 2025
31AQI
17th May 2025
34AQI
18th May 2025
37AQI
19th May 2025
37AQI
20th May 2025
41AQI
21st May 2025
42AQI
22nd May 2025
33AQI
23rd May 2025
27AQI
24th May 2025
31AQI
25th May 2025
39AQI
26th May 2025
54AQI
27th May 2025
48AQI
28th May 2025
41AQI
29th May 2025
34AQI
30th May 2025
41AQI
31st May 2025
38AQI
1st June 2025
40AQI
2nd June 2025
41AQI
3rd June 2025
44AQI
4th June 2025
41AQI
5th June 2025
37AQI
6th June 2025
36AQI
7th June 2025
39AQI
8th June 2025
45AQI
9th June 2025
47AQI
10th June 2025
52AQI
11th June 2025
41AQI
12th June 2025
33AQI
13th June 2025
34AQI
14th June 2025
30AQI
15th June 2025
39AQI
16th June 2025
42AQI
17th June 2025
39AQI
18th June 2025
38AQI
19th June 2025
38AQI
20th June 2025
39AQI
21st June 2025
34AQI
22nd June 2025
37AQI
23rd June 2025
30AQI
24th June 2025
28AQI
25th June 2025
27AQI
26th June 2025
27AQI
27th June 2025
25AQI
28th June 2025
30AQI
29th June 2025
29AQI
30th June 2025
28AQI
1st July 2025
33AQI
2nd July 2025
27AQI
3rd July 2025
26AQI
4th July 2025
28AQI
5th July 2025
28AQI
6th July 2025
28AQI
7th July 2025
29AQI
8th July 2025
34AQI
9th July 2025
42AQI
10th July 2025
45AQI
11th July 2025
45AQI
12th July 2025
45AQI
13th July 2025
49AQI
14th July 2025
50AQI
15th July 2025
50AQI
16th July 2025
49AQI
17th July 2025
49AQI
18th July 2025
51AQI
19th July 2025
50AQI
20th July 2025
44AQI
21st July 2025
38AQI
22nd July 2025
39AQI
23rd July 2025
38AQI
24th July 2025
35AQI
25th July 2025
37AQI
26th July 2025
37AQI
27th July 2025
38AQI
28th July 2025
30AQI
29th July 2025
32AQI
30th July 2025
38AQI
31st July 2025
47AQI
1st August 2025
55AQI
2nd August 2025
55AQI
3rd August 2025
57AQI
4th August 2025
57AQI
5th August 2025
54AQI
6th August 2025
56AQI
7th August 2025
52AQI

84AQI

55AQI

54AQI

63AQI

44AQI

36AQI

39AQI

55AQI


No. of days

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

202554AQI

26
5
11
17
13
18
6
19
5
22
9
29
1
30
1
7
111
98
10

Highest AQI recorded in

January

84AQI


Lowest AQI recorded in

June

36AQI


202447AQI

16
1
2
2
11
1
30
31
31
28
1
19
9
3
19
11
25
6
173
64
9

Highest AQI recorded in

December

83AQI


Lowest AQI recorded in

July

31AQI


202361AQI

3
31
34

Highest AQI recorded in

December

61AQI


Lowest AQI recorded in

November

61AQI


202116AQI

6
20
1
31
12
63
7

Highest AQI recorded in

January

70AQI


Lowest AQI recorded in

March

5AQI


202034AQI

7
3
6
6
12
4
28
31
30
1
28
1
22
6
19
8
2
9
18
192
47
2

Highest AQI recorded in

December

61AQI


Lowest AQI recorded in

July

18AQI


Most & Least Polluted Years Over the Last 5 Years

Most Polluted Year Recorded
2023(Avg.)
61AQI
Least Polluted Year Recorded
2021(Avg.)
16AQI


City Water Company Sub Station's annual 2025 AQI (54) shows an average percentage change of 72.7% (worsened AQI) compared to previous years: 2020 (34), 2021 (16), 2023 (61), 2024 (47).