City First Secondary School Sub Station, Nada, 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 First Secondary School Sub Station, Nada, Hainan, China
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
22nd Aug 2021
71AQILowest AQI recorded on
31st Aug 2022
17AQISame Day Analysis (3rd August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 57 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 4th Aug - 5th Aug 2025
City First Secondary School Sub Station, Nada, Hainan, China
AQI
Day
Night
.
6 AM4th Aug 2025
7 PM
5 AM5th Aug 2025
Day time
Avg. Highest Time
10AM4th Aug
59AQI
Avg. Lowest Time
3PM4th Aug
52AQI
Night time
Avg. Highest Time
9PM4th Aug
58AQI
Avg. Lowest Time
4AM5th Aug
56AQI
In the last 24 hours,
City First Secondary School Sub Station's AQI reached its highest point of 59 at 10 AM during the Day, while the lowest point, 52, was recorded at 3 PM during the Day between 4th Aug and 5th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
City First Secondary School Sub Station, Nada, Hainan, China
JulAug
06th - 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 - 05th05th
Day
Night
6th Jul 2025356 AMAQI
6th Jul 2025367 AMAQI
6th Jul 2025318 AMAQI
6th Jul 2025329 AMAQI
6th Jul 20253210 AMAQI
6th Jul 20253511 AMAQI
6th Jul 20252812 PMAQI
6th Jul 2025261 PMAQI
6th Jul 2025292 PMAQI
6th Jul 2025343 PMAQI
6th Jul 2025374 PMAQI
6th Jul 2025385 PMAQI
6th Jul 2025386 PMAQI
6th Jul 2025387 PMAQI
6th Jul 2025348 PMAQI
6th Jul 2025349 PMAQI
6th Jul 20253210 PMAQI
6th Jul 20253311 PMAQI
7th Jul 20253212 AMAQI
7th Jul 2025331 AMAQI
7th Jul 2025352 AMAQI
7th Jul 2025383 AMAQI
7th Jul 2025344 AMAQI
7th Jul 2025345 AMAQI
27°C24/32°C
7th Jul 2025346 AMAQI
7th Jul 2025347 AMAQI
7th Jul 2025248 AMAQI
7th Jul 2025229 AMAQI
7th Jul 20252310 AMAQI
7th Jul 20252511 AMAQI
7th Jul 20252612 PMAQI
7th Jul 2025231 PMAQI
7th Jul 2025262 PMAQI
7th Jul 2025273 PMAQI
7th Jul 2025254 PMAQI
7th Jul 2025265 PMAQI
7th Jul 2025276 PMAQI
7th Jul 2025287 PMAQI
7th Jul 2025338 PMAQI
7th Jul 2025349 PMAQI
7th Jul 20253210 PMAQI
7th Jul 20253311 PMAQI
8th Jul 20253412 AMAQI
8th Jul 2025341 AMAQI
8th Jul 2025342 AMAQI
8th Jul 2025353 AMAQI
8th Jul 2025334 AMAQI
8th Jul 2025335 AMAQI
27°C24/32°C
8th Jul 2025346 AMAQI
8th Jul 2025357 AMAQI
8th Jul 2025408 AMAQI
8th Jul 2025419 AMAQI
8th Jul 20254410 AMAQI
8th Jul 20254011 AMAQI
8th Jul 20254012 PMAQI
8th Jul 2025411 PMAQI
8th Jul 2025382 PMAQI
8th Jul 2025383 PMAQI
8th Jul 2025344 PMAQI
8th Jul 2025345 PMAQI
8th Jul 2025356 PMAQI
8th Jul 2025377 PMAQI
8th Jul 2025368 PMAQI
8th Jul 2025389 PMAQI
8th Jul 20253710 PMAQI
8th Jul 20253811 PMAQI
9th Jul 20253912 AMAQI
9th Jul 2025351 AMAQI
9th Jul 2025372 AMAQI
9th Jul 2025373 AMAQI
9th Jul 2025374 AMAQI
9th Jul 2025375 AMAQI
28°C24/33°C
9th Jul 2025356 AMAQI
9th Jul 2025357 AMAQI
9th Jul 2025378 AMAQI
9th Jul 2025399 AMAQI
9th Jul 20254310 AMAQI
9th Jul 20254111 AMAQI
9th Jul 20254012 PMAQI
9th Jul 2025411 PMAQI
9th Jul 2025402 PMAQI
9th Jul 2025403 PMAQI
9th Jul 2025374 PMAQI
9th Jul 2025385 PMAQI
9th Jul 2025366 PMAQI
9th Jul 2025407 PMAQI
9th Jul 2025408 PMAQI
9th Jul 2025449 PMAQI
9th Jul 20253910 PMAQI
9th Jul 20254011 PMAQI
10th Jul 20253912 AMAQI
10th Jul 2025381 AMAQI
10th Jul 2025382 AMAQI
10th Jul 2025383 AMAQI
10th Jul 2025384 AMAQI
10th Jul 2025385 AMAQI
28°C24/32°C
10th Jul 2025386 AMAQI
10th Jul 2025387 AMAQI
10th Jul 2025418 AMAQI
10th Jul 2025489 AMAQI
10th Jul 20254910 AMAQI
10th Jul 20254611 AMAQI
10th Jul 20254612 PMAQI
10th Jul 2025491 PMAQI
10th Jul 2025492 PMAQI
10th Jul 2025503 PMAQI
10th Jul 2025514 PMAQI
10th Jul 2025515 PMAQI
10th Jul 2025426 PMAQI
10th Jul 2025407 PMAQI
10th Jul 2025408 PMAQI
10th Jul 2025389 PMAQI
10th Jul 20253910 PMAQI
10th Jul 20254611 PMAQI
11th Jul 20254212 AMAQI
11th Jul 2025401 AMAQI
11th Jul 2025422 AMAQI
11th Jul 2025423 AMAQI
11th Jul 2025434 AMAQI
11th Jul 2025445 AMAQI
28°C24/32°C
11th Jul 2025446 AMAQI
11th Jul 2025447 AMAQI
11th Jul 2025448 AMAQI
11th Jul 2025399 AMAQI
11th Jul 20254210 AMAQI
11th Jul 20254211 AMAQI
11th Jul 20254212 PMAQI
11th Jul 2025411 PMAQI
11th Jul 2025422 PMAQI
11th Jul 2025413 PMAQI
11th Jul 2025434 PMAQI
11th Jul 2025435 PMAQI
11th Jul 2025406 PMAQI
11th Jul 2025367 PMAQI
11th Jul 2025408 PMAQI
11th Jul 2025429 PMAQI
11th Jul 20254210 PMAQI
11th Jul 20254311 PMAQI
12th Jul 20254312 AMAQI
12th Jul 2025431 AMAQI
12th Jul 2025462 AMAQI
12th Jul 2025453 AMAQI
12th Jul 2025444 AMAQI
12th Jul 2025455 AMAQI
26°C24/29°C
12th Jul 2025456 AMAQI
12th Jul 2025457 AMAQI
12th Jul 2025388 AMAQI
12th Jul 2025389 AMAQI
12th Jul 20253810 AMAQI
12th Jul 20253711 AMAQI
12th Jul 20254012 PMAQI
12th Jul 2025381 PMAQI
12th Jul 2025392 PMAQI
12th Jul 2025383 PMAQI
12th Jul 2025364 PMAQI
12th Jul 2025365 PMAQI
12th Jul 2025346 PMAQI
12th Jul 2025387 PMAQI
12th Jul 2025428 PMAQI
12th Jul 2025449 PMAQI
12th Jul 20254410 PMAQI
12th Jul 20254211 PMAQI
13th Jul 20254412 AMAQI
13th Jul 2025471 AMAQI
13th Jul 2025482 AMAQI
13th Jul 2025463 AMAQI
13th Jul 2025444 AMAQI
13th Jul 2025445 AMAQI
27°C24/31°C
13th Jul 2025446 AMAQI
13th Jul 2025437 AMAQI
13th Jul 2025378 AMAQI
13th Jul 2025359 AMAQI
13th Jul 20253810 AMAQI
13th Jul 20254811 AMAQI
13th Jul 20255212 PMAQI
13th Jul 2025521 PMAQI
13th Jul 2025522 PMAQI
13th Jul 2025533 PMAQI
13th Jul 2025524 PMAQI
13th Jul 2025505 PMAQI
13th Jul 2025486 PMAQI
13th Jul 2025387 PMAQI
13th Jul 2025448 PMAQI
13th Jul 2025429 PMAQI
13th Jul 20254310 PMAQI
13th Jul 20254511 PMAQI
14th Jul 20254312 AMAQI
14th Jul 2025461 AMAQI
14th Jul 2025472 AMAQI
14th Jul 2025503 AMAQI
14th Jul 2025474 AMAQI
14th Jul 2025475 AMAQI
28°C24/32°C
14th Jul 2025466 AMAQI
14th Jul 2025477 AMAQI
14th Jul 2025478 AMAQI
14th Jul 2025479 AMAQI
14th Jul 20255210 AMAQI
14th Jul 20255311 AMAQI
14th Jul 20255212 PMAQI
14th Jul 2025521 PMAQI
14th Jul 2025512 PMAQI
14th Jul 2025513 PMAQI
14th Jul 2025524 PMAQI
14th Jul 2025525 PMAQI
14th Jul 2025526 PMAQI
14th Jul 2025467 PMAQI
14th Jul 2025488 PMAQI
14th Jul 2025509 PMAQI
14th Jul 20255010 PMAQI
14th Jul 20254911 PMAQI
15th Jul 20254412 AMAQI
15th Jul 2025451 AMAQI
15th Jul 2025482 AMAQI
15th Jul 2025483 AMAQI
15th Jul 2025494 AMAQI
15th Jul 2025495 AMAQI
28°C25/33°C
15th Jul 2025506 AMAQI
15th Jul 2025537 AMAQI
15th Jul 2025548 AMAQI
15th Jul 2025549 AMAQI
15th Jul 20255210 AMAQI
15th Jul 20255111 AMAQI
15th Jul 20254612 PMAQI
15th Jul 2025471 PMAQI
15th Jul 2025442 PMAQI
15th Jul 2025453 PMAQI
15th Jul 2025494 PMAQI
15th Jul 2025465 PMAQI
15th Jul 2025476 PMAQI
15th Jul 2025487 PMAQI
15th Jul 2025488 PMAQI
15th Jul 2025519 PMAQI
15th Jul 20255210 PMAQI
15th Jul 20255211 PMAQI
16th Jul 20255012 AMAQI
16th Jul 2025491 AMAQI
16th Jul 2025492 AMAQI
16th Jul 2025483 AMAQI
16th Jul 2025504 AMAQI
16th Jul 2025505 AMAQI
29°C25/34°C
16th Jul 2025506 AMAQI
16th Jul 2025507 AMAQI
16th Jul 2025548 AMAQI
16th Jul 2025569 AMAQI
16th Jul 20255410 AMAQI
16th Jul 20255211 AMAQI
16th Jul 20254912 PMAQI
16th Jul 2025501 PMAQI
16th Jul 2025462 PMAQI
16th Jul 2025433 PMAQI
16th Jul 2025454 PMAQI
16th Jul 2025465 PMAQI
16th Jul 2025486 PMAQI
16th Jul 2025507 PMAQI
16th Jul 2025518 PMAQI
16th Jul 2025509 PMAQI
16th Jul 20255210 PMAQI
16th Jul 20255111 PMAQI
17th Jul 20255112 AMAQI
17th Jul 2025501 AMAQI
17th Jul 2025492 AMAQI
17th Jul 2025523 AMAQI
17th Jul 2025514 AMAQI
17th Jul 2025525 AMAQI
29°C25/33°C
17th Jul 2025506 AMAQI
17th Jul 2025517 AMAQI
17th Jul 2025458 AMAQI
17th Jul 2025489 AMAQI
17th Jul 20253710 AMAQI
17th Jul 20253311 AMAQI
17th Jul 20253812 PMAQI
17th Jul 2025371 PMAQI
17th Jul 2025392 PMAQI
17th Jul 2025373 PMAQI
17th Jul 2025404 PMAQI
17th Jul 2025395 PMAQI
17th Jul 2025426 PMAQI
17th Jul 2025467 PMAQI
17th Jul 2025488 PMAQI
17th Jul 2025479 PMAQI
17th Jul 20254910 PMAQI
17th Jul 20255011 PMAQI
18th Jul 20255012 AMAQI
18th Jul 2025501 AMAQI
18th Jul 2025512 AMAQI
18th Jul 2025503 AMAQI
18th Jul 2025514 AMAQI
18th Jul 2025505 AMAQI
28°C25/33°C
18th Jul 2025506 AMAQI
18th Jul 2025517 AMAQI
18th Jul 2025488 AMAQI
18th Jul 2025489 AMAQI
18th Jul 20254210 AMAQI
18th Jul 20254011 AMAQI
18th Jul 20254112 PMAQI
18th Jul 2025431 PMAQI
18th Jul 2025462 PMAQI
18th Jul 2025393 PMAQI
18th Jul 2025324 PMAQI
18th Jul 2025315 PMAQI
18th Jul 2025326 PMAQI
18th Jul 2025407 PMAQI
18th Jul 2025468 PMAQI
18th Jul 2025489 PMAQI
18th Jul 20255010 PMAQI
18th Jul 20255211 PMAQI
19th Jul 20254912 AMAQI
19th Jul 2025501 AMAQI
19th Jul 2025512 AMAQI
19th Jul 2025503 AMAQI
19th Jul 2025514 AMAQI
19th Jul 2025505 AMAQI
28°C25/33°C
19th Jul 2025506 AMAQI
19th Jul 2025507 AMAQI
19th Jul 2025318 AMAQI
19th Jul 2025279 AMAQI
19th Jul 20253510 AMAQI
19th Jul 20253511 AMAQI
19th Jul 20254212 PMAQI
19th Jul 2025441 PMAQI
19th Jul 2025462 PMAQI
19th Jul 2025313 PMAQI
19th Jul 2025304 PMAQI
19th Jul 2025315 PMAQI
19th Jul 2025356 PMAQI
19th Jul 2025397 PMAQI
19th Jul 2025448 PMAQI
19th Jul 2025469 PMAQI
19th Jul 20254610 PMAQI
19th Jul 20254611 PMAQI
20th Jul 20254412 AMAQI
20th Jul 2025461 AMAQI
20th Jul 2025502 AMAQI
20th Jul 2025503 AMAQI
20th Jul 2025484 AMAQI
20th Jul 2025505 AMAQI
25°C24/26°C
20th Jul 2025496 AMAQI
20th Jul 2025487 AMAQI
20th Jul 2025408 AMAQI
20th Jul 2025269 AMAQI
20th Jul 20252710 AMAQI
20th Jul 20252511 AMAQI
20th Jul 20253312 PMAQI
20th Jul 2025361 PMAQI
20th Jul 2025382 PMAQI
20th Jul 2025363 PMAQI
20th Jul 2025334 PMAQI
20th Jul 2025285 PMAQI
20th Jul 2025296 PMAQI
20th Jul 2025357 PMAQI
20th Jul 2025438 PMAQI
20th Jul 2025439 PMAQI
20th Jul 20254510 PMAQI
20th Jul 20254811 PMAQI
21st Jul 20254612 AMAQI
21st Jul 2025441 AMAQI
21st Jul 2025452 AMAQI
21st Jul 2025443 AMAQI
21st Jul 2025434 AMAQI
21st Jul 2025445 AMAQI
24°C24/25°C
21st Jul 2025446 AMAQI
21st Jul 2025437 AMAQI
21st Jul 2025288 AMAQI
21st Jul 2025199 AMAQI
21st Jul 20252410 AMAQI
21st Jul 20252911 AMAQI
21st Jul 20253212 PMAQI
21st Jul 2025271 PMAQI
21st Jul 2025252 PMAQI
21st Jul 2025243 PMAQI
21st Jul 2025244 PMAQI
21st Jul 2025265 PMAQI
21st Jul 2025246 PMAQI
21st Jul 2025307 PMAQI
21st Jul 2025408 PMAQI
21st Jul 2025429 PMAQI
21st Jul 20254010 PMAQI
21st Jul 20254211 PMAQI
22nd Jul 20254012 AMAQI
22nd Jul 2025441 AMAQI
22nd Jul 2025472 AMAQI
22nd Jul 2025443 AMAQI
22nd Jul 2025464 AMAQI
22nd Jul 2025445 AMAQI
25°C24/25°C
22nd Jul 2025446 AMAQI
22nd Jul 2025427 AMAQI
22nd Jul 2025288 AMAQI
22nd Jul 2025229 AMAQI
22nd Jul 20253210 AMAQI
22nd Jul 20252511 AMAQI
22nd Jul 20252412 PMAQI
22nd Jul 2025241 PMAQI
22nd Jul 2025282 PMAQI
22nd Jul 2025263 PMAQI
22nd Jul 2025254 PMAQI
22nd Jul 2025265 PMAQI
22nd Jul 2025266 PMAQI
22nd Jul 2025297 PMAQI
22nd Jul 2025368 PMAQI
22nd Jul 2025379 PMAQI
22nd Jul 20253710 PMAQI
22nd Jul 20253611 PMAQI
23rd Jul 20253812 AMAQI
23rd Jul 2025411 AMAQI
23rd Jul 2025422 AMAQI
23rd Jul 2025423 AMAQI
23rd Jul 2025404 AMAQI
23rd Jul 2025395 AMAQI
26°C24/30°C
23rd Jul 2025396 AMAQI
23rd Jul 2025407 AMAQI
23rd Jul 2025358 AMAQI
23rd Jul 2025379 AMAQI
23rd Jul 20253410 AMAQI
23rd Jul 20253311 AMAQI
23rd Jul 20253212 PMAQI
23rd Jul 2025251 PMAQI
23rd Jul 2025242 PMAQI
23rd Jul 2025233 PMAQI
23rd Jul 2025244 PMAQI
23rd Jul 2025275 PMAQI
23rd Jul 2025306 PMAQI
23rd Jul 2025317 PMAQI
23rd Jul 2025388 PMAQI
23rd Jul 2025399 PMAQI
23rd Jul 20253610 PMAQI
23rd Jul 20253511 PMAQI
24th Jul 20253612 AMAQI
24th Jul 2025361 AMAQI
24th Jul 2025372 AMAQI
24th Jul 2025393 AMAQI
24th Jul 2025384 AMAQI
24th Jul 2025395 AMAQI
27°C24/31°C
24th Jul 2025386 AMAQI
24th Jul 2025387 AMAQI
24th Jul 2025358 AMAQI
24th Jul 2025329 AMAQI
24th Jul 20253810 AMAQI
24th Jul 20253511 AMAQI
24th Jul 20252912 PMAQI
24th Jul 2025331 PMAQI
24th Jul 2025352 PMAQI
24th Jul 2025303 PMAQI
24th Jul 2025284 PMAQI
24th Jul 2025265 PMAQI
24th Jul 2025226 PMAQI
24th Jul 2025267 PMAQI
24th Jul 2025338 PMAQI
24th Jul 2025319 PMAQI
24th Jul 20253210 PMAQI
24th Jul 20253011 PMAQI
25th Jul 20253212 AMAQI
25th Jul 2025331 AMAQI
25th Jul 2025372 AMAQI
25th Jul 2025363 AMAQI
25th Jul 2025364 AMAQI
25th Jul 2025365 AMAQI
26°C24/30°C
25th Jul 2025366 AMAQI
25th Jul 2025357 AMAQI
25th Jul 2025318 AMAQI
25th Jul 2025329 AMAQI
25th Jul 20253410 AMAQI
25th Jul 20253211 AMAQI
25th Jul 20253112 PMAQI
25th Jul 2025321 PMAQI
25th Jul 2025302 PMAQI
25th Jul 2025323 PMAQI
25th Jul 2025334 PMAQI
25th Jul 2025335 PMAQI
25th Jul 2025326 PMAQI
25th Jul 2025447 PMAQI
25th Jul 2025378 PMAQI
25th Jul 2025389 PMAQI
25th Jul 20253810 PMAQI
25th Jul 20253711 PMAQI
26th Jul 20253912 AMAQI
26th Jul 2025381 AMAQI
26th Jul 2025372 AMAQI
26th Jul 2025363 AMAQI
26th Jul 2025364 AMAQI
26th Jul 2025365 AMAQI
27°C24/31°C
26th Jul 2025366 AMAQI
26th Jul 2025367 AMAQI
26th Jul 2025368 AMAQI
26th Jul 2025419 AMAQI
26th Jul 20253410 AMAQI
26th Jul 20252811 AMAQI
26th Jul 20252912 PMAQI
26th Jul 2025301 PMAQI
26th Jul 2025352 PMAQI
26th Jul 2025343 PMAQI
26th Jul 2025364 PMAQI
26th Jul 2025355 PMAQI
26th Jul 2025346 PMAQI
26th Jul 2025387 PMAQI
26th Jul 2025388 PMAQI
26th Jul 2025369 PMAQI
26th Jul 20253810 PMAQI
26th Jul 20253611 PMAQI
27th Jul 20253412 AMAQI
27th Jul 2025361 AMAQI
27th Jul 2025402 AMAQI
27th Jul 2025383 AMAQI
27th Jul 2025384 AMAQI
27th Jul 2025375 AMAQI
27°C24/32°C
27th Jul 2025376 AMAQI
27th Jul 2025387 AMAQI
27th Jul 2025378 AMAQI
27th Jul 2025429 AMAQI
27th Jul 20254210 AMAQI
27th Jul 20254211 AMAQI
27th Jul 20253612 PMAQI
27th Jul 2025361 PMAQI
27th Jul 2025382 PMAQI
27th Jul 2025363 PMAQI
27th Jul 2025384 PMAQI
27th Jul 2025405 PMAQI
27th Jul 2025386 PMAQI
27th Jul 2025357 PMAQI
27th Jul 2025338 PMAQI
27th Jul 2025369 PMAQI
27th Jul 20253610 PMAQI
27th Jul 20253611 PMAQI
28th Jul 20253412 AMAQI
28th Jul 2025351 AMAQI
28th Jul 2025372 AMAQI
28th Jul 2025373 AMAQI
28th Jul 2025384 AMAQI
28th Jul 2025385 AMAQI
28°C25/32°C
28th Jul 2025406 AMAQI
28th Jul 2025387 AMAQI
28th Jul 2025358 AMAQI
28th Jul 2025379 AMAQI
28th Jul 20253610 AMAQI
28th Jul 20253011 AMAQI
28th Jul 20253012 PMAQI
28th Jul 2025281 PMAQI
28th Jul 2025212 PMAQI
28th Jul 2025223 PMAQI
28th Jul 2025224 PMAQI
28th Jul 2025255 PMAQI
28th Jul 2025296 PMAQI
28th Jul 2025287 PMAQI
28th Jul 2025348 PMAQI
28th Jul 2025369 PMAQI
28th Jul 20253610 PMAQI
28th Jul 20253511 PMAQI
29th Jul 20253412 AMAQI
29th Jul 2025391 AMAQI
29th Jul 2025392 AMAQI
29th Jul 2025383 AMAQI
29th Jul 2025374 AMAQI
29th Jul 2025365 AMAQI
27°C24/31°C
29th Jul 2025366 AMAQI
29th Jul 2025357 AMAQI
29th Jul 2025298 AMAQI
29th Jul 2025309 AMAQI
29th Jul 20252710 AMAQI
29th Jul 20252611 AMAQI
29th Jul 20252612 PMAQI
29th Jul 2025271 PMAQI
29th Jul 2025272 PMAQI
29th Jul 2025283 PMAQI
29th Jul 2025244 PMAQI
29th Jul 2025245 PMAQI
29th Jul 2025256 PMAQI
29th Jul 2025287 PMAQI
29th Jul 2025328 PMAQI
29th Jul 2025339 PMAQI
29th Jul 20253210 PMAQI
29th Jul 20253511 PMAQI
30th Jul 20253612 AMAQI
30th Jul 2025361 AMAQI
30th Jul 2025362 AMAQI
30th Jul 2025353 AMAQI
30th Jul 2025344 AMAQI
30th Jul 2025365 AMAQI
28°C24/32°C
30th Jul 2025366 AMAQI
30th Jul 2025377 AMAQI
30th Jul 2025288 AMAQI
30th Jul 2025319 AMAQI
30th Jul 20253310 AMAQI
30th Jul 20253111 AMAQI
30th Jul 20253212 PMAQI
30th Jul 2025231 PMAQI
30th Jul 2025292 PMAQI
30th Jul 2025293 PMAQI
30th Jul 2025224 PMAQI
30th Jul 2025225 PMAQI
30th Jul 2025296 PMAQI
30th Jul 2025307 PMAQI
30th Jul 2025348 PMAQI
30th Jul 2025349 PMAQI
30th Jul 20253510 PMAQI
30th Jul 20253511 PMAQI
31st Jul 20253912 AMAQI
31st Jul 2025391 AMAQI
31st Jul 2025392 AMAQI
31st Jul 2025393 AMAQI
31st Jul 2025394 AMAQI
31st Jul 2025395 AMAQI
28°C25/32°C
31st Jul 2025396 AMAQI
31st Jul 2025397 AMAQI
31st Jul 2025398 AMAQI
31st Jul 2025399 AMAQI
31st Jul 20254210 AMAQI
31st Jul 20253411 AMAQI
31st Jul 20253412 PMAQI
31st Jul 2025331 PMAQI
31st Jul 2025322 PMAQI
31st Jul 2025323 PMAQI
31st Jul 2025344 PMAQI
31st Jul 2025325 PMAQI
31st Jul 2025406 PMAQI
31st Jul 2025477 PMAQI
31st Jul 2025568 PMAQI
31st Jul 2025569 PMAQI
31st Jul 20255710 PMAQI
31st Jul 20255711 PMAQI
1st Aug 20255612 AMAQI
1st Aug 2025581 AMAQI
1st Aug 2025562 AMAQI
1st Aug 2025553 AMAQI
1st Aug 2025554 AMAQI
1st Aug 2025565 AMAQI
28°C25/33°C
1st Aug 2025566 AMAQI
1st Aug 2025557 AMAQI
1st Aug 2025588 AMAQI
1st Aug 2025579 AMAQI
1st Aug 20255610 AMAQI
1st Aug 20255011 AMAQI
1st Aug 20255412 PMAQI
1st Aug 2025521 PMAQI
1st Aug 2025522 PMAQI
1st Aug 2025503 PMAQI
1st Aug 2025524 PMAQI
1st Aug 2025485 PMAQI
1st Aug 2025536 PMAQI
1st Aug 2025527 PMAQI
1st Aug 2025558 PMAQI
1st Aug 2025569 PMAQI
1st Aug 20255410 PMAQI
1st Aug 20255611 PMAQI
2nd Aug 20255612 AMAQI
2nd Aug 2025561 AMAQI
2nd Aug 2025552 AMAQI
2nd Aug 2025563 AMAQI
2nd Aug 2025564 AMAQI
2nd Aug 2025565 AMAQI
28°C26/32°C
2nd Aug 2025566 AMAQI
2nd Aug 2025567 AMAQI
2nd Aug 2025418 AMAQI
2nd Aug 2025509 AMAQI
2nd Aug 20255110 AMAQI
2nd Aug 20254811 AMAQI
2nd Aug 20255312 PMAQI
2nd Aug 2025541 PMAQI
2nd Aug 2025532 PMAQI
2nd Aug 2025523 PMAQI
2nd Aug 2025464 PMAQI
2nd Aug 2025535 PMAQI
2nd Aug 2025546 PMAQI
2nd Aug 2025547 PMAQI
2nd Aug 2025568 PMAQI
2nd Aug 2025579 PMAQI
2nd Aug 20255810 PMAQI
2nd Aug 20255711 PMAQI
3rd Aug 20255612 AMAQI
3rd Aug 2025581 AMAQI
3rd Aug 2025572 AMAQI
3rd Aug 2025563 AMAQI
3rd Aug 2025564 AMAQI
3rd Aug 2025555 AMAQI
28°C25/33°C
3rd Aug 2025566 AMAQI
3rd Aug 2025567 AMAQI
3rd Aug 2025568 AMAQI
3rd Aug 2025609 AMAQI
3rd Aug 20256310 AMAQI
3rd Aug 20256411 AMAQI
3rd Aug 20256412 PMAQI
3rd Aug 2025601 PMAQI
3rd Aug 2025532 PMAQI
3rd Aug 2025523 PMAQI
3rd Aug 2025514 PMAQI
3rd Aug 2025545 PMAQI
3rd Aug 2025526 PMAQI
3rd Aug 2025567 PMAQI
3rd Aug 2025568 PMAQI
3rd Aug 2025589 PMAQI
3rd Aug 20255910 PMAQI
3rd Aug 20255811 PMAQI
4th Aug 20255612 AMAQI
4th Aug 2025561 AMAQI
4th Aug 2025562 AMAQI
4th Aug 2025573 AMAQI
4th Aug 2025574 AMAQI
4th Aug 2025565 AMAQI
29°C26/34°C
4th Aug 2025576 AMAQI
4th Aug 2025577 AMAQI
4th Aug 2025548 AMAQI
4th Aug 2025559 AMAQI
4th Aug 20255910 AMAQI
4th Aug 20255811 AMAQI
4th Aug 20255712 PMAQI
4th Aug 2025541 PMAQI
4th Aug 2025562 PMAQI
4th Aug 2025523 PMAQI
4th Aug 2025564 PMAQI
4th Aug 2025535 PMAQI
4th Aug 2025536 PMAQI
4th Aug 2025567 PMAQI
4th Aug 2025568 PMAQI
4th Aug 2025589 PMAQI
4th Aug 20255810 PMAQI
4th Aug 20255611 PMAQI
5th Aug 20255612 AMAQI
5th Aug 2025571 AMAQI
5th Aug 2025582 AMAQI
5th Aug 2025573 AMAQI
5th Aug 2025564 AMAQI
5th Aug 2025575 AMAQI
29°C26/31°C
5th Aug 2025576 AMAQI
6 AM5th Aug 2025567 AMAQI
5th Aug 2025568 AMAQI
5th Aug 2025509 AMAQI
5th Aug 20255410 AMAQI
5th Aug 20255311 AMAQI
5th Aug 20255812 PMAQI
12 PM5th Aug 2025571 PMAQI
5th Aug 2025472 PMAQI
7 PM
12 AM
5 AM
--°C/°C
Day time
Avg. Highest Time
6 AM - 7 AM
44AQI
2 hours / Day
60 hours / Month
Avg. Lowest Time
11 AM - 7 PM
38AQI
9 hours / Day
270 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 6 AM to 7 AM (Avg. 44), while the lowest AQI was between 11 AM to 7 PM (Avg. 38).
Night time
Avg. Highest Time
12 AM - 11 PM
43AQI
10 hours / Day
300 hours / Month
Avg. Lowest Time
12 AM - 11 PM
43AQI
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. 43), while the lowest AQI was between 12 AM to 11 PM (Avg. 43).
2025 Days Vs Air Quality
City First Secondary School Sub Station, Nada, Hainan, China
2025
44%
94
52%
111
5%
10
Total number of days with different AQI categories in last 217 days in 2025 (148 days remaining)
Good
94 DaysModerate
111 DaysPoor
10 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 44%
Health Risk Level:
Significant
In 2025, 44% of 217 days were within WHO’s safe air quality limits, and 56% exceeded them. The risk of health issues is Significant, especially for those with existing respiratory or heart conditions.
Annual Air Quality Insights
City First Secondary School Sub Station, Nada, 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
110AQI
110AQI
2nd January 2025
98AQI
98AQI
3rd January 2025
100AQI
100AQI
4th January 2025
91AQI
91AQI
5th January 2025
106AQI
106AQI
6th January 2025
102AQI
102AQI
7th January 2025
85AQI
85AQI
8th January 2025
84AQI
84AQI
9th January 2025
96AQI
96AQI
10th January 2025
115AQI
115AQI
11th January 2025
90AQI
90AQI
12th January 2025
89AQI
89AQI
13th January 2025
74AQI
74AQI
14th January 2025
69AQI
69AQI
15th January 2025
89AQI
89AQI
16th January 2025
92AQI
92AQI
17th January 2025
102AQI
102AQI
18th January 2025
82AQI
82AQI
19th January 2025
95AQI
95AQI
20th January 2025
88AQI
88AQI
21st January 2025
81AQI
81AQI
22nd January 2025
89AQI
89AQI
23rd January 2025
70AQI
70AQI
24th January 2025
65AQI
65AQI
25th January 2025
59AQI
59AQI
26th January 2025
56AQI
56AQI
27th January 2025
62AQI
62AQI
28th January 2025
70AQI
70AQI
29th January 2025
74AQI
74AQI
30th January 2025
66AQI
66AQI
31st January 2025
65AQI
65AQI
1st February 2025
57AQI
57AQI
2nd February 2025
53AQI
53AQI
3rd February 2025
61AQI
61AQI
4th February 2025
56AQI
56AQI
5th February 2025
50AQI
50AQI
6th February 2025
61AQI
61AQI
7th February 2025
68AQI
68AQI
8th February 2025
60AQI
60AQI
9th February 2025
69AQI
69AQI
10th February 2025
60AQI
60AQI
11th February 2025
58AQI
58AQI
12th February 2025
45AQI
45AQI
13th February 2025
58AQI
58AQI
14th February 2025
40AQI
40AQI
15th February 2025
63AQI
63AQI
16th February 2025
48AQI
48AQI
17th February 2025
72AQI
72AQI
18th February 2025
63AQI
63AQI
19th February 2025
69AQI
69AQI
20th February 2025
59AQI
59AQI
21st February 2025
62AQI
62AQI
22nd February 2025
45AQI
45AQI
23rd February 2025
47AQI
47AQI
24th February 2025
48AQI
48AQI
25th February 2025
44AQI
44AQI
26th February 2025
50AQI
50AQI
27th February 2025
52AQI
52AQI
28th February 2025
55AQI
55AQI
1st March 2025
61AQI
61AQI
2nd March 2025
54AQI
54AQI
3rd March 2025
67AQI
67AQI
4th March 2025
70AQI
70AQI
5th March 2025
81AQI
81AQI
6th March 2025
41AQI
41AQI
7th March 2025
45AQI
45AQI
8th March 2025
39AQI
39AQI
9th March 2025
57AQI
57AQI
10th March 2025
54AQI
54AQI
11th March 2025
55AQI
55AQI
12th March 2025
50AQI
50AQI
13th March 2025
50AQI
50AQI
14th March 2025
47AQI
47AQI
15th March 2025
63AQI
63AQI
16th March 2025
45AQI
45AQI
17th March 2025
68AQI
68AQI
18th March 2025
69AQI
69AQI
19th March 2025
81AQI
81AQI
20th March 2025
76AQI
76AQI
21st March 2025
77AQI
77AQI
22nd March 2025
75AQI
75AQI
23rd March 2025
86AQI
86AQI
24th March 2025
76AQI
76AQI
25th March 2025
84AQI
84AQI
26th March 2025
81AQI
81AQI
27th March 2025
89AQI
89AQI
28th March 2025
90AQI
90AQI
29th March 2025
58AQI
58AQI
30th March 2025
39AQI
39AQI
31st March 2025
47AQI
47AQI
1st April 2025
52AQI
52AQI
2nd April 2025
62AQI
62AQI
3rd April 2025
59AQI
59AQI
4th April 2025
62AQI
62AQI
5th April 2025
66AQI
66AQI
6th April 2025
43AQI
43AQI
7th April 2025
60AQI
60AQI
8th April 2025
57AQI
57AQI
9th April 2025
65AQI
65AQI
10th April 2025
66AQI
66AQI
11th April 2025
75AQI
75AQI
12th April 2025
70AQI
70AQI
13th April 2025
131AQI
131AQI
14th April 2025
131AQI
131AQI
15th April 2025
128AQI
128AQI
16th April 2025
101AQI
101AQI
17th April 2025
104AQI
104AQI
18th April 2025
86AQI
86AQI
19th April 2025
70AQI
70AQI
20th April 2025
71AQI
71AQI
21st April 2025
59AQI
59AQI
22nd April 2025
66AQI
66AQI
23rd April 2025
61AQI
61AQI
24th April 2025
66AQI
66AQI
25th April 2025
67AQI
67AQI
26th April 2025
57AQI
57AQI
27th April 2025
56AQI
56AQI
28th April 2025
52AQI
52AQI
29th April 2025
46AQI
46AQI
30th April 2025
48AQI
48AQI
1st May 2025
50AQI
50AQI
2nd May 2025
54AQI
54AQI
3rd May 2025
61AQI
61AQI
4th May 2025
63AQI
63AQI
5th May 2025
57AQI
57AQI
6th May 2025
63AQI
63AQI
7th May 2025
62AQI
62AQI
8th May 2025
60AQI
60AQI
9th May 2025
55AQI
55AQI
10th May 2025
51AQI
51AQI
11th May 2025
56AQI
56AQI
12th May 2025
62AQI
62AQI
13th May 2025
56AQI
56AQI
14th May 2025
48AQI
48AQI
15th May 2025
42AQI
42AQI
16th May 2025
42AQI
42AQI
17th May 2025
42AQI
42AQI
18th May 2025
43AQI
43AQI
19th May 2025
43AQI
43AQI
20th May 2025
43AQI
43AQI
21st May 2025
48AQI
48AQI
22nd May 2025
43AQI
43AQI
23rd May 2025
44AQI
44AQI
24th May 2025
44AQI
44AQI
25th May 2025
52AQI
52AQI
26th May 2025
62AQI
62AQI
27th May 2025
52AQI
52AQI
28th May 2025
46AQI
46AQI
29th May 2025
45AQI
45AQI
30th May 2025
45AQI
45AQI
31st May 2025
41AQI
41AQI
1st June 2025
43AQI
43AQI
2nd June 2025
36AQI
36AQI
3rd June 2025
52AQI
52AQI
4th June 2025
56AQI
56AQI
5th June 2025
52AQI
52AQI
6th June 2025
46AQI
46AQI
7th June 2025
50AQI
50AQI
8th June 2025
47AQI
47AQI
9th June 2025
49AQI
49AQI
10th June 2025
53AQI
53AQI
11th June 2025
43AQI
43AQI
12th June 2025
31AQI
31AQI
13th June 2025
26AQI
26AQI
14th June 2025
29AQI
29AQI
15th June 2025
32AQI
32AQI
16th June 2025
37AQI
37AQI
17th June 2025
35AQI
35AQI
18th June 2025
32AQI
32AQI
19th June 2025
32AQI
32AQI
20th June 2025
32AQI
32AQI
21st June 2025
35AQI
35AQI
22nd June 2025
39AQI
39AQI
23rd June 2025
35AQI
35AQI
24th June 2025
35AQI
35AQI
25th June 2025
33AQI
33AQI
26th June 2025
33AQI
33AQI
27th June 2025
34AQI
34AQI
28th June 2025
32AQI
32AQI
29th June 2025
33AQI
33AQI
30th June 2025
31AQI
31AQI
1st July 2025
29AQI
29AQI
2nd July 2025
27AQI
27AQI
3rd July 2025
28AQI
28AQI
4th July 2025
31AQI
31AQI
5th July 2025
32AQI
32AQI
6th July 2025
34AQI
34AQI
7th July 2025
30AQI
30AQI
8th July 2025
36AQI
36AQI
9th July 2025
39AQI
39AQI
10th July 2025
42AQI
42AQI
11th July 2025
42AQI
42AQI
12th July 2025
42AQI
42AQI
13th July 2025
45AQI
45AQI
14th July 2025
48AQI
48AQI
15th July 2025
48AQI
48AQI
16th July 2025
50AQI
50AQI
17th July 2025
47AQI
47AQI
18th July 2025
46AQI
46AQI
19th July 2025
44AQI
44AQI
20th July 2025
41AQI
41AQI
21st July 2025
38AQI
38AQI
22nd July 2025
36AQI
36AQI
23rd July 2025
35AQI
35AQI
24th July 2025
33AQI
33AQI
25th July 2025
34AQI
34AQI
26th July 2025
36AQI
36AQI
27th July 2025
37AQI
37AQI
28th July 2025
33AQI
33AQI
29th July 2025
32AQI
32AQI
30th July 2025
32AQI
32AQI
31st July 2025
40AQI
40AQI
1st August 2025
55AQI
55AQI
2nd August 2025
54AQI
54AQI
3rd August 2025
57AQI
57AQI
84AQI
56AQI
64AQI
71AQI
51AQI
38AQI
38AQI
55AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202557AQI
26
5
9
19
9
22
3
22
5
16
15
26
4
31
3
94
111
10
Highest AQI recorded in
January84AQI
Lowest AQI recorded in
July38AQI
202453AQI
6
16
7
8
2
8
13
1
1
17
2
19
5
30
31
30
1
21
8
13
15
3
5
25
25
6
171
133
14
Highest AQI recorded in
December82AQI
Lowest AQI recorded in
July27AQI
202359AQI
1
8
1
1
1
9
3
2
1
1
1
5
2
9
2
3
2
1
9
20
1
31
46
6
Highest AQI recorded in
November81AQI
Lowest AQI recorded in
September26AQI
202248AQI
10
18
16
5
10
21
3
13
1
21
10
30
18
1
2
7
10
14
1
19
4
4
8
1
144
100
3
Highest AQI recorded in
October62AQI
Lowest AQI recorded in
August17AQI
202153AQI
25
6
8
20
6
25
11
19
23
8
20
10
31
24
4
25
5
23
8
10
18
2
4
23
4
185
165
12
Highest AQI recorded in
January84AQI
Lowest AQI recorded in
July35AQI
202058AQI
21
4
25
5
11
20
10
15
5
6
17
8
73
61
13
Highest AQI recorded in
December80AQI
Lowest AQI recorded in
August39AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2023(Avg.)
59AQILeast Polluted Year Recorded
2022(Avg.)
48AQICity First Secondary School Sub Station's annual 2025 AQI (57) shows an average percentage change of 6.7% (worsened AQI) compared to previous years: 2020 (58), 2021 (53), 2022 (48), 2023 (59), 2024 (53).
