Hedongzi Station, Sanya, 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
Hedongzi Station, Sanya, Hainan, China
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
6th Aug 2021
57AQILowest AQI recorded on
31st Aug 2022
20AQISame Day Analysis (2nd 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: 3rd Aug - 4th Aug 2025
Hedongzi Station, Sanya, Hainan, China
AQI
Day
Night
.
6 AM3rd Aug 2025
7 PM
5 AM4th Aug 2025
Day time
Avg. Highest Time
12AMNaNth undefined
AQI
Avg. Lowest Time
12AMNaNth undefined
AQI
Night time
Avg. Highest Time
9AM3rd Aug
64AQI
Avg. Lowest Time
6PM3rd Aug
51AQI
In the last 24 hours,
Hedongzi Station's AQI reached its highest point of 64 at 9 AM during the Night, while the lowest point, undefined, was recorded at 5 AM during the Night between 3rd Aug and 4th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Hedongzi Station, Sanya, Hainan, China
JulAug
05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th
Day
Night
5th Jul 2025286 AMAQI
5th Jul 2025287 AMAQI
5th Jul 2025228 AMAQI
5th Jul 2025299 AMAQI
5th Jul 20253210 AMAQI
5th Jul 20253811 AMAQI
5th Jul 20252512 PMAQI
5th Jul 2025251 PMAQI
5th Jul 2025222 PMAQI
5th Jul 2025233 PMAQI
5th Jul 2025224 PMAQI
5th Jul 2025205 PMAQI
5th Jul 2025206 PMAQI
5th Jul 2025257 PMAQI
5th Jul 2025298 PMAQI
5th Jul 2025309 PMAQI
5th Jul 20252810 PMAQI
5th Jul 20253011 PMAQI
6th Jul 20253212 AMAQI
6th Jul 2025301 AMAQI
6th Jul 2025292 AMAQI
6th Jul 2025303 AMAQI
6th Jul 2025304 AMAQI
6th Jul 2025315 AMAQI
28°C25/30°C
6th Jul 2025316 AMAQI
6th Jul 2025297 AMAQI
6th Jul 2025278 AMAQI
6th Jul 2025239 AMAQI
6th Jul 20252610 AMAQI
6th Jul 20252211 AMAQI
6th Jul 20252412 PMAQI
6th Jul 2025221 PMAQI
6th Jul 2025222 PMAQI
6th Jul 2025243 PMAQI
6th Jul 2025234 PMAQI
6th Jul 2025235 PMAQI
6th Jul 2025256 PMAQI
6th Jul 2025267 PMAQI
6th Jul 2025308 PMAQI
6th Jul 2025309 PMAQI
6th Jul 20253210 PMAQI
6th Jul 20253211 PMAQI
7th Jul 20253512 AMAQI
7th Jul 2025311 AMAQI
7th Jul 2025312 AMAQI
7th Jul 2025313 AMAQI
7th Jul 2025304 AMAQI
7th Jul 2025295 AMAQI
27°C26/31°C
7th Jul 2025306 AMAQI
7th Jul 2025307 AMAQI
7th Jul 2025318 AMAQI
7th Jul 2025219 AMAQI
7th Jul 20252310 AMAQI
7th Jul 20252511 AMAQI
7th Jul 20253212 PMAQI
7th Jul 2025291 PMAQI
7th Jul 2025242 PMAQI
7th Jul 2025213 PMAQI
7th Jul 2025234 PMAQI
7th Jul 2025245 PMAQI
7th Jul 2025236 PMAQI
7th Jul 2025287 PMAQI
7th Jul 2025298 PMAQI
7th Jul 2025309 PMAQI
7th Jul 20253010 PMAQI
7th Jul 20252911 PMAQI
8th Jul 20253112 AMAQI
8th Jul 2025321 AMAQI
8th Jul 2025322 AMAQI
8th Jul 2025313 AMAQI
8th Jul 2025294 AMAQI
8th Jul 2025305 AMAQI
28°C26/31°C
8th Jul 2025306 AMAQI
8th Jul 2025297 AMAQI
8th Jul 2025268 AMAQI
8th Jul 2025279 AMAQI
8th Jul 20253610 AMAQI
8th Jul 20252911 AMAQI
8th Jul 20252912 PMAQI
8th Jul 2025281 PMAQI
8th Jul 2025302 PMAQI
8th Jul 2025283 PMAQI
8th Jul 2025254 PMAQI
8th Jul 2025245 PMAQI
8th Jul 2025246 PMAQI
8th Jul 2025297 PMAQI
8th Jul 2025308 PMAQI
8th Jul 2025309 PMAQI
8th Jul 20253210 PMAQI
8th Jul 20253611 PMAQI
9th Jul 20253312 AMAQI
9th Jul 2025311 AMAQI
9th Jul 2025322 AMAQI
9th Jul 2025343 AMAQI
9th Jul 2025324 AMAQI
9th Jul 2025325 AMAQI
28°C26/31°C
9th Jul 2025306 AMAQI
9th Jul 2025307 AMAQI
9th Jul 2025348 AMAQI
9th Jul 2025309 AMAQI
9th Jul 20253410 AMAQI
9th Jul 20254111 AMAQI
9th Jul 20253912 PMAQI
9th Jul 2025411 PMAQI
9th Jul 2025402 PMAQI
9th Jul 2025403 PMAQI
9th Jul 2025344 PMAQI
9th Jul 2025355 PMAQI
9th Jul 2025336 PMAQI
9th Jul 2025347 PMAQI
9th Jul 2025368 PMAQI
9th Jul 2025389 PMAQI
9th Jul 20253610 PMAQI
9th Jul 20253411 PMAQI
10th Jul 20253512 AMAQI
10th Jul 2025331 AMAQI
10th Jul 2025342 AMAQI
10th Jul 2025333 AMAQI
10th Jul 2025334 AMAQI
10th Jul 2025335 AMAQI
28°C26/30°C
10th Jul 2025346 AMAQI
10th Jul 2025367 AMAQI
10th Jul 2025428 AMAQI
10th Jul 2025469 AMAQI
10th Jul 20254410 AMAQI
10th Jul 20254411 AMAQI
10th Jul 20253912 PMAQI
10th Jul 2025361 PMAQI
10th Jul 2025352 PMAQI
10th Jul 2025283 PMAQI
10th Jul 2025284 PMAQI
10th Jul 2025365 PMAQI
10th Jul 2025426 PMAQI
10th Jul 2025467 PMAQI
10th Jul 2025378 PMAQI
10th Jul 2025349 PMAQI
10th Jul 20253410 PMAQI
10th Jul 20253511 PMAQI
11th Jul 20253412 AMAQI
11th Jul 2025371 AMAQI
11th Jul 2025362 AMAQI
11th Jul 2025383 AMAQI
11th Jul 2025374 AMAQI
11th Jul 2025365 AMAQI
28°C27/30°C
11th Jul 2025386 AMAQI
11th Jul 2025387 AMAQI
11th Jul 2025508 AMAQI
11th Jul 2025559 AMAQI
11th Jul 20255610 AMAQI
11th Jul 20255611 AMAQI
11th Jul 20255212 PMAQI
11th Jul 2025491 PMAQI
11th Jul 2025442 PMAQI
11th Jul 2025443 PMAQI
11th Jul 2025404 PMAQI
11th Jul 2025365 PMAQI
11th Jul 2025346 PMAQI
11th Jul 2025307 PMAQI
11th Jul 2025378 PMAQI
11th Jul 2025399 PMAQI
11th Jul 20253910 PMAQI
11th Jul 20253811 PMAQI
12th Jul 20254012 AMAQI
12th Jul 2025381 AMAQI
12th Jul 2025372 AMAQI
12th Jul 2025383 AMAQI
12th Jul 2025394 AMAQI
12th Jul 2025405 AMAQI
28°C26/31°C
12th Jul 2025406 AMAQI
12th Jul 2025387 AMAQI
12th Jul 2025278 AMAQI
12th Jul 2025329 AMAQI
12th Jul 20252910 AMAQI
12th Jul 20253011 AMAQI
12th Jul 20253812 PMAQI
12th Jul 2025401 PMAQI
12th Jul 2025402 PMAQI
12th Jul 2025383 PMAQI
12th Jul 2025404 PMAQI
12th Jul 2025385 PMAQI
12th Jul 2025406 PMAQI
12th Jul 2025437 PMAQI
12th Jul 2025428 PMAQI
12th Jul 2025439 PMAQI
12th Jul 20254310 PMAQI
12th Jul 20254211 PMAQI
13th Jul 20254312 AMAQI
13th Jul 2025421 AMAQI
13th Jul 2025402 AMAQI
13th Jul 2025403 AMAQI
13th Jul 2025394 AMAQI
13th Jul 2025395 AMAQI
28°C26/31°C
13th Jul 2025406 AMAQI
13th Jul 2025387 AMAQI
13th Jul 2025438 AMAQI
13th Jul 2025449 AMAQI
13th Jul 20255010 AMAQI
13th Jul 20254611 AMAQI
13th Jul 20254012 PMAQI
13th Jul 2025411 PMAQI
13th Jul 2025402 PMAQI
13th Jul 2025383 PMAQI
13th Jul 2025374 PMAQI
13th Jul 2025385 PMAQI
13th Jul 2025366 PMAQI
13th Jul 2025427 PMAQI
13th Jul 2025428 PMAQI
13th Jul 2025429 PMAQI
13th Jul 20254210 PMAQI
13th Jul 20254411 PMAQI
14th Jul 20254212 AMAQI
14th Jul 2025421 AMAQI
14th Jul 2025452 AMAQI
14th Jul 2025453 AMAQI
14th Jul 2025424 AMAQI
14th Jul 2025425 AMAQI
29°C26/31°C
14th Jul 2025426 AMAQI
14th Jul 2025427 AMAQI
14th Jul 2025468 AMAQI
14th Jul 2025469 AMAQI
14th Jul 20254510 AMAQI
14th Jul 20254411 AMAQI
14th Jul 20254612 PMAQI
14th Jul 2025441 PMAQI
14th Jul 2025422 PMAQI
14th Jul 2025453 PMAQI
14th Jul 2025444 PMAQI
14th Jul 2025465 PMAQI
14th Jul 2025486 PMAQI
14th Jul 2025487 PMAQI
14th Jul 2025488 PMAQI
14th Jul 2025499 PMAQI
14th Jul 20254710 PMAQI
14th Jul 20254811 PMAQI
15th Jul 20254712 AMAQI
15th Jul 2025441 AMAQI
15th Jul 2025442 AMAQI
15th Jul 2025443 AMAQI
15th Jul 2025464 AMAQI
15th Jul 2025455 AMAQI
29°C26/32°C
15th Jul 2025466 AMAQI
15th Jul 2025457 AMAQI
15th Jul 2025548 AMAQI
15th Jul 2025589 AMAQI
15th Jul 20255310 AMAQI
15th Jul 20255211 AMAQI
15th Jul 20254812 PMAQI
15th Jul 2025431 PMAQI
15th Jul 2025442 PMAQI
15th Jul 2025463 PMAQI
15th Jul 2025464 PMAQI
15th Jul 2025425 PMAQI
15th Jul 2025446 PMAQI
15th Jul 2025457 PMAQI
15th Jul 2025488 PMAQI
15th Jul 2025489 PMAQI
15th Jul 20255110 PMAQI
15th Jul 20255111 PMAQI
16th Jul 20255012 AMAQI
16th Jul 2025471 AMAQI
16th Jul 2025472 AMAQI
16th Jul 2025483 AMAQI
16th Jul 2025484 AMAQI
16th Jul 2025485 AMAQI
29°C26/32°C
16th Jul 2025496 AMAQI
16th Jul 2025487 AMAQI
16th Jul 2025518 AMAQI
16th Jul 2025529 AMAQI
16th Jul 20255110 AMAQI
16th Jul 20255011 AMAQI
16th Jul 20254812 PMAQI
16th Jul 2025481 PMAQI
16th Jul 2025432 PMAQI
16th Jul 2025423 PMAQI
16th Jul 2025434 PMAQI
16th Jul 2025445 PMAQI
16th Jul 2025436 PMAQI
16th Jul 2025437 PMAQI
16th Jul 2025478 PMAQI
16th Jul 2025469 PMAQI
16th Jul 20254710 PMAQI
16th Jul 20254711 PMAQI
17th Jul 20254612 AMAQI
17th Jul 2025491 AMAQI
17th Jul 2025482 AMAQI
17th Jul 2025493 AMAQI
17th Jul 2025484 AMAQI
17th Jul 2025485 AMAQI
29°C27/32°C
17th Jul 2025496 AMAQI
17th Jul 2025487 AMAQI
17th Jul 2025268 AMAQI
17th Jul 2025209 AMAQI
17th Jul 20252910 AMAQI
17th Jul 20253011 AMAQI
17th Jul 20255112 PMAQI
17th Jul 2025501 PMAQI
17th Jul 2025462 PMAQI
17th Jul 2025473 PMAQI
17th Jul 2025484 PMAQI
17th Jul 2025505 PMAQI
17th Jul 2025486 PMAQI
17th Jul 2025437 PMAQI
17th Jul 2025468 PMAQI
17th Jul 2025499 PMAQI
17th Jul 20254810 PMAQI
17th Jul 20254811 PMAQI
18th Jul 20254712 AMAQI
18th Jul 2025471 AMAQI
18th Jul 2025482 AMAQI
18th Jul 2025483 AMAQI
18th Jul 2025464 AMAQI
18th Jul 2025465 AMAQI
29°C27/32°C
18th Jul 2025466 AMAQI
18th Jul 2025467 AMAQI
18th Jul 2025448 AMAQI
18th Jul 2025369 AMAQI
18th Jul 20253610 AMAQI
18th Jul 20253411 AMAQI
18th Jul 20253812 PMAQI
18th Jul 2025381 PMAQI
18th Jul 2025402 PMAQI
18th Jul 2025383 PMAQI
18th Jul 2025374 PMAQI
18th Jul 2025375 PMAQI
18th Jul 2025376 PMAQI
18th Jul 2025417 PMAQI
18th Jul 2025488 PMAQI
18th Jul 2025479 PMAQI
18th Jul 20254610 PMAQI
18th Jul 20254711 PMAQI
19th Jul 20254712 AMAQI
19th Jul 2025461 AMAQI
19th Jul 2025472 AMAQI
19th Jul 2025463 AMAQI
19th Jul 2025444 AMAQI
19th Jul 2025455 AMAQI
29°C27/32°C
19th Jul 2025456 AMAQI
19th Jul 2025457 AMAQI
19th Jul 2025298 AMAQI
19th Jul 2025269 AMAQI
19th Jul 20252810 AMAQI
19th Jul 20252911 AMAQI
19th Jul 20253412 PMAQI
19th Jul 2025361 PMAQI
19th Jul 2025352 PMAQI
19th Jul 2025343 PMAQI
19th Jul 2025344 PMAQI
19th Jul 2025365 PMAQI
19th Jul 2025366 PMAQI
19th Jul 2025427 PMAQI
19th Jul 2025438 PMAQI
19th Jul 2025449 PMAQI
19th Jul 20254410 PMAQI
19th Jul 20254511 PMAQI
20th Jul 20254412 AMAQI
20th Jul 2025451 AMAQI
20th Jul 2025462 AMAQI
20th Jul 2025463 AMAQI
20th Jul 2025434 AMAQI
20th Jul 2025445 AMAQI
28°C26/29°C
20th Jul 2025446 AMAQI
20th Jul 2025447 AMAQI
20th Jul 2025308 AMAQI
20th Jul 2025189 AMAQI
20th Jul 20251910 AMAQI
20th Jul 20252211 AMAQI
20th Jul 20252812 PMAQI
20th Jul 2025301 PMAQI
20th Jul 2025312 PMAQI
20th Jul 2025283 PMAQI
20th Jul 2025254 PMAQI
20th Jul 2025265 PMAQI
20th Jul 2025286 PMAQI
20th Jul 2025347 PMAQI
20th Jul 2025408 PMAQI
20th Jul 2025419 PMAQI
20th Jul 20254310 PMAQI
20th Jul 20254311 PMAQI
21st Jul 20254212 AMAQI
21st Jul 2025431 AMAQI
21st Jul 2025432 AMAQI
21st Jul 2025433 AMAQI
21st Jul 2025424 AMAQI
21st Jul 2025425 AMAQI
27°C26/28°C
21st Jul 2025426 AMAQI
21st Jul 2025437 AMAQI
21st Jul 2025478 AMAQI
21st Jul 2025429 AMAQI
21st Jul 20254410 AMAQI
21st Jul 20254211 AMAQI
21st Jul 20254412 PMAQI
21st Jul 2025371 PMAQI
21st Jul 2025322 PMAQI
21st Jul 2025323 PMAQI
21st Jul 2025364 PMAQI
21st Jul 2025385 PMAQI
21st Jul 2025386 PMAQI
21st Jul 2025387 PMAQI
21st Jul 2025408 PMAQI
21st Jul 2025389 PMAQI
21st Jul 20253810 PMAQI
21st Jul 20253711 PMAQI
22nd Jul 20253712 AMAQI
22nd Jul 2025401 AMAQI
22nd Jul 2025422 AMAQI
22nd Jul 2025413 AMAQI
22nd Jul 2025414 AMAQI
22nd Jul 2025415 AMAQI
26°C26/27°C
22nd Jul 2025416 AMAQI
22nd Jul 2025417 AMAQI
22nd Jul 2025248 AMAQI
22nd Jul 2025239 AMAQI
22nd Jul 20252110 AMAQI
22nd Jul 20252211 AMAQI
22nd Jul 20253012 PMAQI
22nd Jul 2025301 PMAQI
22nd Jul 2025272 PMAQI
22nd Jul 2025243 PMAQI
22nd Jul 2025224 PMAQI
22nd Jul 2025225 PMAQI
22nd Jul 2025256 PMAQI
22nd Jul 2025287 PMAQI
22nd Jul 2025388 PMAQI
22nd Jul 2025439 PMAQI
22nd Jul 20254310 PMAQI
22nd Jul 20254211 PMAQI
23rd Jul 20254012 AMAQI
23rd Jul 2025391 AMAQI
23rd Jul 2025382 AMAQI
23rd Jul 2025383 AMAQI
23rd Jul 2025354 AMAQI
23rd Jul 2025355 AMAQI
27°C26/29°C
23rd Jul 2025346 AMAQI
23rd Jul 2025357 AMAQI
23rd Jul 2025258 AMAQI
23rd Jul 2025209 AMAQI
23rd Jul 20252310 AMAQI
23rd Jul 20252011 AMAQI
23rd Jul 20252312 PMAQI
23rd Jul 2025231 PMAQI
23rd Jul 2025232 PMAQI
23rd Jul 2025223 PMAQI
23rd Jul 2025224 PMAQI
23rd Jul 2025235 PMAQI
23rd Jul 2025246 PMAQI
23rd Jul 2025307 PMAQI
23rd Jul 2025388 PMAQI
23rd Jul 2025379 PMAQI
23rd Jul 20253610 PMAQI
23rd Jul 20253811 PMAQI
24th Jul 20254012 AMAQI
24th Jul 2025401 AMAQI
24th Jul 2025392 AMAQI
24th Jul 2025373 AMAQI
24th Jul 2025374 AMAQI
24th Jul 2025385 AMAQI
28°C25/30°C
24th Jul 2025386 AMAQI
24th Jul 2025377 AMAQI
24th Jul 2025288 AMAQI
24th Jul 2025249 AMAQI
24th Jul 20251910 AMAQI
24th Jul 20252011 AMAQI
24th Jul 20252412 PMAQI
24th Jul 2025281 PMAQI
24th Jul 2025272 PMAQI
24th Jul 2025263 PMAQI
24th Jul 2025274 PMAQI
24th Jul 2025285 PMAQI
24th Jul 2025286 PMAQI
24th Jul 2025317 PMAQI
24th Jul 2025368 PMAQI
24th Jul 2025379 PMAQI
24th Jul 20253710 PMAQI
24th Jul 20253611 PMAQI
25th Jul 20253612 AMAQI
25th Jul 2025381 AMAQI
25th Jul 2025382 AMAQI
25th Jul 2025383 AMAQI
25th Jul 2025384 AMAQI
25th Jul 2025375 AMAQI
27°C25/30°C
25th Jul 2025376 AMAQI
25th Jul 2025377 AMAQI
25th Jul 2025308 AMAQI
25th Jul 2025259 AMAQI
25th Jul 20252610 AMAQI
25th Jul 20252411 AMAQI
25th Jul 20252912 PMAQI
25th Jul 2025251 PMAQI
25th Jul 2025232 PMAQI
25th Jul 2025223 PMAQI
25th Jul 2025224 PMAQI
25th Jul 2025245 PMAQI
25th Jul 2025306 PMAQI
25th Jul 2025367 PMAQI
25th Jul 2025378 PMAQI
25th Jul 2025389 PMAQI
25th Jul 20253810 PMAQI
25th Jul 20253711 PMAQI
26th Jul 20253812 AMAQI
26th Jul 2025381 AMAQI
26th Jul 2025402 AMAQI
26th Jul 2025383 AMAQI
26th Jul 2025384 AMAQI
26th Jul 2025385 AMAQI
27°C25/29°C
26th Jul 2025376 AMAQI
26th Jul 2025377 AMAQI
26th Jul 2025288 AMAQI
26th Jul 2025259 AMAQI
26th Jul 20252710 AMAQI
26th Jul 20252811 AMAQI
26th Jul 20253012 PMAQI
26th Jul 2025321 PMAQI
26th Jul 2025342 PMAQI
26th Jul 2025403 PMAQI
26th Jul 2025404 PMAQI
26th Jul 2025415 PMAQI
26th Jul 2025406 PMAQI
26th Jul 2025397 PMAQI
26th Jul 2025408 PMAQI
26th Jul 2025419 PMAQI
26th Jul 20253910 PMAQI
26th Jul 20254411 PMAQI
27th Jul 20253912 AMAQI
27th Jul 2025381 AMAQI
27th Jul 2025382 AMAQI
27th Jul 2025373 AMAQI
27th Jul 2025354 AMAQI
27th Jul 2025365 AMAQI
27°C25/31°C
27th Jul 2025356 AMAQI
27th Jul 2025347 AMAQI
27th Jul 2025358 AMAQI
27th Jul 2025349 AMAQI
27th Jul 20253210 AMAQI
27th Jul 20252811 AMAQI
27th Jul 20252712 PMAQI
27th Jul 2025271 PMAQI
27th Jul 2025252 PMAQI
27th Jul 2025283 PMAQI
27th Jul 2025244 PMAQI
27th Jul 2025245 PMAQI
27th Jul 2025266 PMAQI
27th Jul 2025307 PMAQI
27th Jul 2025378 PMAQI
27th Jul 2025379 PMAQI
27th Jul 20253810 PMAQI
27th Jul 20253711 PMAQI
28th Jul 20253912 AMAQI
28th Jul 2025371 AMAQI
28th Jul 2025382 AMAQI
28th Jul 2025383 AMAQI
28th Jul 2025364 AMAQI
28th Jul 2025365 AMAQI
27°C25/30°C
28th Jul 2025366 AMAQI
28th Jul 2025367 AMAQI
28th Jul 2025228 AMAQI
28th Jul 2025199 AMAQI
28th Jul 20251910 AMAQI
28th Jul 20252711 AMAQI
28th Jul 20253212 PMAQI
28th Jul 2025321 PMAQI
28th Jul 2025312 PMAQI
28th Jul 2025293 PMAQI
28th Jul 2025294 PMAQI
28th Jul 2025255 PMAQI
28th Jul 2025296 PMAQI
28th Jul 2025327 PMAQI
28th Jul 2025348 PMAQI
28th Jul 2025349 PMAQI
28th Jul 20253510 PMAQI
28th Jul 20253611 PMAQI
29th Jul 20253612 AMAQI
29th Jul 2025381 AMAQI
29th Jul 2025382 AMAQI
29th Jul 2025373 AMAQI
29th Jul 2025374 AMAQI
29th Jul 2025365 AMAQI
27°C26/29°C
29th Jul 2025366 AMAQI
29th Jul 2025367 AMAQI
29th Jul 2025328 AMAQI
29th Jul 2025309 AMAQI
29th Jul 20253610 AMAQI
29th Jul 20253711 AMAQI
29th Jul 20253212 PMAQI
29th Jul 2025281 PMAQI
29th Jul 2025272 PMAQI
29th Jul 2025233 PMAQI
29th Jul 2025254 PMAQI
29th Jul 2025245 PMAQI
29th Jul 2025296 PMAQI
29th Jul 2025317 PMAQI
29th Jul 2025358 PMAQI
29th Jul 2025379 PMAQI
29th Jul 20253510 PMAQI
29th Jul 20253411 PMAQI
30th Jul 20253812 AMAQI
30th Jul 2025361 AMAQI
30th Jul 2025362 AMAQI
30th Jul 2025353 AMAQI
30th Jul 2025344 AMAQI
30th Jul 2025345 AMAQI
28°C26/30°C
30th Jul 2025346 AMAQI
30th Jul 2025347 AMAQI
30th Jul 2025348 AMAQI
30th Jul 2025279 AMAQI
30th Jul 20252410 AMAQI
30th Jul 20252111 AMAQI
30th Jul 20252812 PMAQI
30th Jul 2025331 PMAQI
30th Jul 2025312 PMAQI
30th Jul 2025333 PMAQI
30th Jul 2025304 PMAQI
30th Jul 2025305 PMAQI
30th Jul 2025336 PMAQI
30th Jul 2025367 PMAQI
30th Jul 2025378 PMAQI
30th Jul 2025359 PMAQI
30th Jul 20253510 PMAQI
30th Jul 20253411 PMAQI
31st Jul 20253412 AMAQI
31st Jul 2025361 AMAQI
31st Jul 2025372 AMAQI
31st Jul 2025363 AMAQI
31st Jul 2025354 AMAQI
31st Jul 2025355 AMAQI
28°C27/29°C
31st Jul 2025356 AMAQI
31st Jul 2025357 AMAQI
31st Jul 2025358 AMAQI
31st Jul 2025359 AMAQI
31st Jul 20254810 AMAQI
31st Jul 20255211 AMAQI
31st Jul 20254812 PMAQI
31st Jul 2025471 PMAQI
31st Jul 2025482 PMAQI
31st Jul 2025463 PMAQI
31st Jul 2025484 PMAQI
31st Jul 2025515 PMAQI
31st Jul 2025526 PMAQI
31st Jul 2025517 PMAQI
31st Jul 2025518 PMAQI
31st Jul 2025539 PMAQI
31st Jul 20255610 PMAQI
31st Jul 20255311 PMAQI
1st Aug 20255512 AMAQI
1st Aug 2025561 AMAQI
1st Aug 2025582 AMAQI
1st Aug 2025543 AMAQI
1st Aug 2025534 AMAQI
1st Aug 2025555 AMAQI
28°C26/30°C
1st Aug 2025556 AMAQI
1st Aug 2025557 AMAQI
1st Aug 2025508 AMAQI
1st Aug 2025569 AMAQI
1st Aug 20255510 AMAQI
1st Aug 20254711 AMAQI
1st Aug 20255512 PMAQI
1st Aug 2025491 PMAQI
1st Aug 2025582 PMAQI
1st Aug 2025593 PMAQI
1st Aug 2025594 PMAQI
1st Aug 2025605 PMAQI
1st Aug 2025616 PMAQI
1st Aug 2025607 PMAQI
1st Aug 2025588 PMAQI
1st Aug 2025589 PMAQI
1st Aug 20255810 PMAQI
1st Aug 20256011 PMAQI
2nd Aug 20255912 AMAQI
2nd Aug 2025561 AMAQI
2nd Aug 2025562 AMAQI
2nd Aug 2025563 AMAQI
2nd Aug 2025554 AMAQI
2nd Aug 2025555 AMAQI
28°C27/31°C
2nd Aug 2025566 AMAQI
2nd Aug 2025557 AMAQI
2nd Aug 2025498 AMAQI
2nd Aug 2025429 AMAQI
2nd Aug 20254910 AMAQI
2nd Aug 20254911 AMAQI
2nd Aug 20255412 PMAQI
2nd Aug 2025551 PMAQI
2nd Aug 2025612 PMAQI
2nd Aug 2025583 PMAQI
2nd Aug 2025604 PMAQI
2nd Aug 2025675 PMAQI
2nd Aug 2025666 PMAQI
2nd Aug 2025657 PMAQI
2nd Aug 2025618 PMAQI
2nd Aug 2025619 PMAQI
2nd Aug 20256210 PMAQI
2nd Aug 20256611 PMAQI
3rd Aug 20256212 AMAQI
3rd Aug 2025561 AMAQI
3rd Aug 2025552 AMAQI
3rd Aug 2025553 AMAQI
3rd Aug 2025544 AMAQI
3rd Aug 2025545 AMAQI
29°C27/32°C
3rd Aug 2025556 AMAQI
3rd Aug 2025557 AMAQI
3rd Aug 2025568 AMAQI
3rd Aug 2025649 AMAQI
3rd Aug 20256210 AMAQI
3rd Aug 20256311 AMAQI
3rd Aug 20256012 PMAQI
3rd Aug 2025591 PMAQI
3rd Aug 2025552 PMAQI
3rd Aug 2025563 PMAQI
3rd Aug 2025564 PMAQI
3rd Aug 2025575 PMAQI
3rd Aug 2025516 PMAQI
3rd Aug 2025577 PMAQI
3rd Aug 2025588 PMAQI
3rd Aug 2025599 PMAQI
3rd Aug 20255810 PMAQI
3rd Aug 20255911 PMAQI
4th Aug 20255812 AMAQI
4th Aug 2025571 AMAQI
4th Aug 2025562 AMAQI
4th Aug 2025573 AMAQI
4th Aug 2025574 AMAQI
--°C/°C
6 AM
12 PM
7 PM
12 AM
5 AM
--°C/°C
Day time
Avg. Highest Time
6 AM - 7 AM
40AQI
2 hours / Day
60 hours / Month
Avg. Lowest Time
9 AM
34AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 6 AM to 7 AM (Avg. 40), while the lowest AQI was between 9 AM to 9 AM (Avg. 34).
Night time
Avg. Highest Time
12 AM - 11 PM
41AQI
10 hours / Day
300 hours / Month
Avg. Lowest Time
12 AM - 11 PM
41AQI
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. 41), while the lowest AQI was between 12 AM to 11 PM (Avg. 41).
2025 Days Vs Air Quality
Hedongzi Station, Sanya, Hainan, China
2025
59%
126
39%
84
2%
4
Total number of days with different AQI categories in last 215 days in 2025 (150 days remaining)
Good
126 DaysModerate
84 DaysPoor
4 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 59%
Health Risk Level:
Considerable
In 2025, 59% of 215 days were within WHO’s safe air quality limits, and 41% exceeded them. The risk of health issues is Considerable, with potential for conditions in sensitive individuals.
Annual Air Quality Insights
Hedongzi Station, Sanya, 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
82AQI
82AQI
2nd January 2025
70AQI
70AQI
3rd January 2025
84AQI
84AQI
4th January 2025
72AQI
72AQI
5th January 2025
86AQI
86AQI
6th January 2025
87AQI
87AQI
7th January 2025
78AQI
78AQI
8th January 2025
71AQI
71AQI
9th January 2025
71AQI
71AQI
10th January 2025
103AQI
103AQI
11th January 2025
74AQI
74AQI
12th January 2025
82AQI
82AQI
13th January 2025
63AQI
63AQI
14th January 2025
53AQI
53AQI
15th January 2025
51AQI
51AQI
16th January 2025
77AQI
77AQI
17th January 2025
83AQI
83AQI
18th January 2025
77AQI
77AQI
19th January 2025
79AQI
79AQI
20th January 2025
78AQI
78AQI
21st January 2025
71AQI
71AQI
22nd January 2025
68AQI
68AQI
23rd January 2025
65AQI
65AQI
24th January 2025
57AQI
57AQI
25th January 2025
55AQI
55AQI
26th January 2025
51AQI
51AQI
27th January 2025
53AQI
53AQI
28th January 2025
57AQI
57AQI
29th January 2025
59AQI
59AQI
30th January 2025
56AQI
56AQI
31st January 2025
52AQI
52AQI
1st February 2025
44AQI
44AQI
2nd February 2025
40AQI
40AQI
3rd February 2025
45AQI
45AQI
4th February 2025
39AQI
39AQI
5th February 2025
49AQI
49AQI
6th February 2025
56AQI
56AQI
7th February 2025
59AQI
59AQI
8th February 2025
45AQI
45AQI
9th February 2025
57AQI
57AQI
10th February 2025
55AQI
55AQI
11th February 2025
42AQI
42AQI
12th February 2025
43AQI
43AQI
13th February 2025
42AQI
42AQI
14th February 2025
35AQI
35AQI
15th February 2025
51AQI
51AQI
16th February 2025
33AQI
33AQI
17th February 2025
55AQI
55AQI
18th February 2025
60AQI
60AQI
19th February 2025
66AQI
66AQI
20th February 2025
60AQI
60AQI
21st February 2025
60AQI
60AQI
22nd February 2025
43AQI
43AQI
23rd February 2025
39AQI
39AQI
24th February 2025
34AQI
34AQI
25th February 2025
36AQI
36AQI
26th February 2025
47AQI
47AQI
27th February 2025
52AQI
52AQI
28th February 2025
54AQI
54AQI
1st March 2025
51AQI
51AQI
2nd March 2025
46AQI
46AQI
3rd March 2025
49AQI
49AQI
4th March 2025
40AQI
40AQI
5th March 2025
45AQI
45AQI
6th March 2025
37AQI
37AQI
7th March 2025
37AQI
37AQI
8th March 2025
34AQI
34AQI
9th March 2025
52AQI
52AQI
10th March 2025
50AQI
50AQI
11th March 2025
55AQI
55AQI
12th March 2025
50AQI
50AQI
13th March 2025
47AQI
47AQI
14th March 2025
42AQI
42AQI
15th March 2025
46AQI
46AQI
16th March 2025
39AQI
39AQI
17th March 2025
40AQI
40AQI
18th March 2025
39AQI
39AQI
19th March 2025
56AQI
56AQI
20th March 2025
61AQI
61AQI
21st March 2025
68AQI
68AQI
22nd March 2025
66AQI
66AQI
23rd March 2025
62AQI
62AQI
24th March 2025
62AQI
62AQI
25th March 2025
61AQI
61AQI
26th March 2025
55AQI
55AQI
27th March 2025
60AQI
60AQI
28th March 2025
51AQI
51AQI
29th March 2025
58AQI
58AQI
30th March 2025
34AQI
34AQI
31st March 2025
33AQI
33AQI
1st April 2025
32AQI
32AQI
2nd April 2025
46AQI
46AQI
3rd April 2025
53AQI
53AQI
4th April 2025
56AQI
56AQI
5th April 2025
62AQI
62AQI
6th April 2025
48AQI
48AQI
7th April 2025
58AQI
58AQI
8th April 2025
57AQI
57AQI
9th April 2025
63AQI
63AQI
10th April 2025
57AQI
57AQI
11th April 2025
59AQI
59AQI
12th April 2025
58AQI
58AQI
13th April 2025
62AQI
62AQI
14th April 2025
108AQI
108AQI
15th April 2025
107AQI
107AQI
16th April 2025
116AQI
116AQI
17th April 2025
98AQI
98AQI
18th April 2025
76AQI
76AQI
19th April 2025
62AQI
62AQI
20th April 2025
55AQI
55AQI
21st April 2025
53AQI
53AQI
22nd April 2025
51AQI
51AQI
23rd April 2025
48AQI
48AQI
24th April 2025
48AQI
48AQI
25th April 2025
50AQI
50AQI
26th April 2025
46AQI
46AQI
27th April 2025
34AQI
34AQI
28th April 2025
50AQI
50AQI
29th April 2025
37AQI
37AQI
30th April 2025
54AQI
54AQI
1st May 2025
52AQI
52AQI
2nd May 2025
55AQI
55AQI
3rd May 2025
58AQI
58AQI
4th May 2025
52AQI
52AQI
5th May 2025
50AQI
50AQI
6th May 2025
53AQI
53AQI
7th May 2025
53AQI
53AQI
8th May 2025
49AQI
49AQI
9th May 2025
55AQI
55AQI
10th May 2025
47AQI
47AQI
11th May 2025
42AQI
42AQI
12th May 2025
56AQI
56AQI
13th May 2025
47AQI
47AQI
14th May 2025
42AQI
42AQI
15th May 2025
37AQI
37AQI
16th May 2025
31AQI
31AQI
17th May 2025
35AQI
35AQI
18th May 2025
41AQI
41AQI
19th May 2025
34AQI
34AQI
20th May 2025
42AQI
42AQI
21st May 2025
37AQI
37AQI
22nd May 2025
30AQI
30AQI
23rd May 2025
29AQI
29AQI
24th May 2025
26AQI
26AQI
25th May 2025
38AQI
38AQI
26th May 2025
46AQI
46AQI
27th May 2025
42AQI
42AQI
28th May 2025
44AQI
44AQI
29th May 2025
38AQI
38AQI
30th May 2025
40AQI
40AQI
31st May 2025
42AQI
42AQI
1st June 2025
41AQI
41AQI
2nd June 2025
44AQI
44AQI
3rd June 2025
45AQI
45AQI
4th June 2025
45AQI
45AQI
5th June 2025
40AQI
40AQI
6th June 2025
38AQI
38AQI
7th June 2025
41AQI
41AQI
8th June 2025
48AQI
48AQI
9th June 2025
47AQI
47AQI
10th June 2025
54AQI
54AQI
11th June 2025
44AQI
44AQI
12th June 2025
34AQI
34AQI
13th June 2025
35AQI
35AQI
14th June 2025
37AQI
37AQI
15th June 2025
40AQI
40AQI
16th June 2025
47AQI
47AQI
17th June 2025
47AQI
47AQI
18th June 2025
45AQI
45AQI
19th June 2025
43AQI
43AQI
20th June 2025
39AQI
39AQI
21st June 2025
36AQI
36AQI
22nd June 2025
34AQI
34AQI
23rd June 2025
29AQI
29AQI
24th June 2025
30AQI
30AQI
25th June 2025
28AQI
28AQI
26th June 2025
27AQI
27AQI
27th June 2025
26AQI
26AQI
28th June 2025
26AQI
26AQI
29th June 2025
26AQI
26AQI
30th June 2025
29AQI
29AQI
1st July 2025
29AQI
29AQI
2nd July 2025
28AQI
28AQI
3rd July 2025
26AQI
26AQI
4th July 2025
26AQI
26AQI
5th July 2025
27AQI
27AQI
6th July 2025
28AQI
28AQI
7th July 2025
29AQI
29AQI
8th July 2025
30AQI
30AQI
9th July 2025
34AQI
34AQI
10th July 2025
36AQI
36AQI
11th July 2025
40AQI
40AQI
12th July 2025
39AQI
39AQI
13th July 2025
41AQI
41AQI
14th July 2025
45AQI
45AQI
15th July 2025
47AQI
47AQI
16th July 2025
48AQI
48AQI
17th July 2025
46AQI
46AQI
18th July 2025
43AQI
43AQI
19th July 2025
41AQI
41AQI
20th July 2025
38AQI
38AQI
21st July 2025
40AQI
40AQI
22nd July 2025
34AQI
34AQI
23rd July 2025
33AQI
33AQI
24th July 2025
34AQI
34AQI
25th July 2025
34AQI
34AQI
26th July 2025
37AQI
37AQI
27th July 2025
34AQI
34AQI
28th July 2025
33AQI
33AQI
29th July 2025
33AQI
33AQI
30th July 2025
34AQI
34AQI
31st July 2025
43AQI
43AQI
1st August 2025
57AQI
57AQI
2nd August 2025
57AQI
57AQI
70AQI
48AQI
49AQI
60AQI
43AQI
38AQI
36AQI
57AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202549AQI
30
1
16
12
17
14
10
17
3
23
8
29
1
31
2
126
84
4
Highest AQI recorded in
January70AQI
Lowest AQI recorded in
July36AQI
202446AQI
10
21
15
14
8
23
15
15
25
6
27
3
31
31
28
2
16
14
1
13
17
2
29
221
144
1
Highest AQI recorded in
December63AQI
Lowest AQI recorded in
September29AQI
202346AQI
14
17
15
12
1
8
22
1
7
22
1
17
14
25
5
31
29
2
28
2
24
7
15
10
1
23
8
236
121
4
Highest AQI recorded in
March62AQI
Lowest AQI recorded in
July29AQI
202245AQI
17
13
15
6
19
12
13
4
28
3
25
5
21
1
14
14
17
14
26
4
11
20
207
95
Highest AQI recorded in
December56AQI
Lowest AQI recorded in
August20AQI
202146AQI
6
22
2
1
8
20
15
16
17
13
27
4
19
11
27
4
22
6
29
1
28
3
15
15
13
16
2
226
131
4
1
Highest AQI recorded in
January70AQI
Lowest AQI recorded in
September29AQI
202042AQI
12
1
13
8
14
4
30
31
29
2
29
1
19
12
15
12
3
7
24
199
64
3
Highest AQI recorded in
December61AQI
Lowest AQI recorded in
August29AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2025(Avg.)
49AQILeast Polluted Year Recorded
2020(Avg.)
42AQIHedongzi Station's annual 2025 AQI (49) shows an average percentage change of 10.1% (worsened AQI) compared to previous years: 2020 (42), 2021 (46), 2022 (45), 2023 (46), 2024 (46).
