Hainan Normal University, Haikou, 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
Hainan Normal University, Haikou, Hainan, China
2022
2023
2024
2025
2026
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
11th Aug 2026
68AQILowest AQI recorded on
31st Aug 2024
13AQISame Day Analysis (17th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 3rd highest AQI at 32 of Good air quality, showing improvement over 2024 and 2023 on the same day.
Day & Night AQI Trend: 16th Aug - 17th Aug 2026
Hainan Normal University, Haikou, Hainan, China
AQI
Day
Night
.
6 AM16th Aug 2026
7 PM
5 AM17th Aug 2026
Day time
Avg. Highest Time
10AM16th Aug
48AQI
Avg. Lowest Time
4PM16th Aug
38AQI
Night time
Avg. Highest Time
8PM16th Aug
44AQI
Avg. Lowest Time
5AM17th Aug
31AQI
In the last 24 hours,
Hainan Normal University's AQI reached its highest point of 48 at 10 AM during the Day, while the lowest point, 31, was recorded at 5 AM during the Night between 16th Aug and 17th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Hainan Normal University, Haikou, Hainan, China
JulAug
19th - 20th20th - 21st21st - 22nd22nd - 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
Day
Night
19th Jul 2026566 AMAQI
19th Jul 2026527 AMAQI
19th Jul 2026568 AMAQI
19th Jul 2026559 AMAQI
19th Jul 20265610 AMAQI
19th Jul 20265411 AMAQI
19th Jul 20265512 PMAQI
19th Jul 2026541 PMAQI
19th Jul 2026552 PMAQI
19th Jul 2026573 PMAQI
19th Jul 2026554 PMAQI
19th Jul 2026565 PMAQI
19th Jul 2026606 PMAQI
19th Jul 2026627 PMAQI
19th Jul 2026648 PMAQI
19th Jul 2026609 PMAQI
19th Jul 20266210 PMAQI
19th Jul 20266611 PMAQI
20th Jul 20266212 AMAQI
20th Jul 2026591 AMAQI
20th Jul 2026562 AMAQI
20th Jul 2026553 AMAQI
20th Jul 2026584 AMAQI
20th Jul 2026585 AMAQI
30°C27/34°C
20th Jul 2026606 AMAQI
20th Jul 2026587 AMAQI
20th Jul 2026628 AMAQI
20th Jul 2026629 AMAQI
20th Jul 20266210 AMAQI
20th Jul 20266711 AMAQI
20th Jul 20266412 PMAQI
20th Jul 2026641 PMAQI
20th Jul 2026632 PMAQI
20th Jul 2026623 PMAQI
20th Jul 2026644 PMAQI
20th Jul 2026625 PMAQI
20th Jul 2026656 PMAQI
20th Jul 2026627 PMAQI
20th Jul 2026658 PMAQI
20th Jul 2026679 PMAQI
20th Jul 20266610 PMAQI
20th Jul 20266811 PMAQI
21st Jul 20266712 AMAQI
21st Jul 2026651 AMAQI
21st Jul 2026602 AMAQI
21st Jul 2026603 AMAQI
21st Jul 2026604 AMAQI
21st Jul 2026555 AMAQI
30°C27/34°C
21st Jul 2026606 AMAQI
21st Jul 2026707 AMAQI
21st Jul 2026668 AMAQI
21st Jul 2026669 AMAQI
21st Jul 20266510 AMAQI
21st Jul 20266012 PMAQI
21st Jul 2026581 PMAQI
21st Jul 2026572 PMAQI
21st Jul 2026553 PMAQI
21st Jul 2026564 PMAQI
21st Jul 2026585 PMAQI
21st Jul 2026986 PMAQI
21st Jul 2026627 PMAQI
21st Jul 2026558 PMAQI
21st Jul 2026559 PMAQI
21st Jul 20265310 PMAQI
21st Jul 20265411 PMAQI
22nd Jul 20265612 AMAQI
22nd Jul 2026541 AMAQI
22nd Jul 2026542 AMAQI
22nd Jul 2026573 AMAQI
22nd Jul 2026534 AMAQI
22nd Jul 2026565 AMAQI
30°C27/33°C
22nd Jul 2026636 AMAQI
22nd Jul 2026627 AMAQI
22nd Jul 2026628 AMAQI
22nd Jul 2026699 AMAQI
22nd Jul 20266210 AMAQI
22nd Jul 20265811 AMAQI
22nd Jul 20265512 PMAQI
22nd Jul 2026571 PMAQI
22nd Jul 2026562 PMAQI
22nd Jul 2026553 PMAQI
22nd Jul 2026554 PMAQI
22nd Jul 2026595 PMAQI
22nd Jul 2026586 PMAQI
22nd Jul 2026597 PMAQI
22nd Jul 2026598 PMAQI
22nd Jul 2026679 PMAQI
22nd Jul 20266310 PMAQI
22nd Jul 20266711 PMAQI
23rd Jul 20266412 AMAQI
23rd Jul 2026601 AMAQI
23rd Jul 2026642 AMAQI
23rd Jul 2026663 AMAQI
23rd Jul 2026644 AMAQI
23rd Jul 2026595 AMAQI
30°C27/34°C
23rd Jul 2026646 AMAQI
23rd Jul 2026677 AMAQI
23rd Jul 2026678 AMAQI
23rd Jul 2026679 AMAQI
23rd Jul 20266710 AMAQI
23rd Jul 20266411 AMAQI
23rd Jul 20266412 PMAQI
23rd Jul 2026631 PMAQI
23rd Jul 2026602 PMAQI
23rd Jul 2026633 PMAQI
23rd Jul 2026564 PMAQI
23rd Jul 2026515 PMAQI
23rd Jul 2026486 PMAQI
23rd Jul 2026507 PMAQI
23rd Jul 2026568 PMAQI
23rd Jul 2026689 PMAQI
23rd Jul 20266910 PMAQI
23rd Jul 20266711 PMAQI
24th Jul 20266712 AMAQI
24th Jul 2026621 AMAQI
24th Jul 2026642 AMAQI
24th Jul 2026643 AMAQI
24th Jul 2026624 AMAQI
24th Jul 2026635 AMAQI
30°C27/34°C
24th Jul 2026626 AMAQI
24th Jul 2026637 AMAQI
24th Jul 2026628 AMAQI
24th Jul 2026659 AMAQI
24th Jul 20266210 AMAQI
24th Jul 20266011 AMAQI
24th Jul 20265612 PMAQI
24th Jul 2026551 PMAQI
24th Jul 2026532 PMAQI
24th Jul 2026543 PMAQI
24th Jul 2026544 PMAQI
24th Jul 2026535 PMAQI
24th Jul 2026526 PMAQI
24th Jul 2026517 PMAQI
24th Jul 2026528 PMAQI
24th Jul 2026579 PMAQI
24th Jul 20266210 PMAQI
24th Jul 20266411 PMAQI
25th Jul 20266712 AMAQI
25th Jul 2026661 AMAQI
25th Jul 2026662 AMAQI
25th Jul 2026593 AMAQI
25th Jul 2026624 AMAQI
25th Jul 2026625 AMAQI
29°C27/33°C
25th Jul 2026626 AMAQI
25th Jul 2026627 AMAQI
25th Jul 2026628 AMAQI
25th Jul 2026589 AMAQI
25th Jul 20265810 AMAQI
25th Jul 20265511 AMAQI
25th Jul 20265112 PMAQI
25th Jul 2026521 PMAQI
25th Jul 2026502 PMAQI
25th Jul 2026513 PMAQI
25th Jul 2026494 PMAQI
25th Jul 2026485 PMAQI
25th Jul 2026516 PMAQI
25th Jul 2026537 PMAQI
25th Jul 2026548 PMAQI
25th Jul 2026569 PMAQI
25th Jul 20266010 PMAQI
25th Jul 20266411 PMAQI
26th Jul 20267212 AMAQI
26th Jul 2026691 AMAQI
26th Jul 2026712 AMAQI
26th Jul 2026673 AMAQI
26th Jul 2026674 AMAQI
26th Jul 2026675 AMAQI
29°C26/32°C
26th Jul 2026646 AMAQI
26th Jul 2026627 AMAQI
26th Jul 2026628 AMAQI
26th Jul 2026629 AMAQI
26th Jul 20265710 AMAQI
26th Jul 20265711 AMAQI
26th Jul 20265212 PMAQI
26th Jul 2026511 PMAQI
26th Jul 2026512 PMAQI
26th Jul 2026463 PMAQI
26th Jul 2026464 PMAQI
26th Jul 2026445 PMAQI
26th Jul 2026426 PMAQI
26th Jul 2026407 PMAQI
26th Jul 2026408 PMAQI
26th Jul 2026499 PMAQI
26th Jul 20265310 PMAQI
26th Jul 20265211 PMAQI
27th Jul 20265212 AMAQI
27th Jul 2026531 AMAQI
27th Jul 2026542 AMAQI
27th Jul 2026563 AMAQI
27th Jul 2026574 AMAQI
27th Jul 2026505 AMAQI
29°C26/31°C
27th Jul 2026566 AMAQI
27th Jul 2026567 AMAQI
27th Jul 2026528 AMAQI
27th Jul 2026539 AMAQI
27th Jul 20266210 AMAQI
27th Jul 20266211 AMAQI
27th Jul 20265412 PMAQI
27th Jul 2026511 PMAQI
27th Jul 2026442 PMAQI
27th Jul 2026333 PMAQI
27th Jul 2026294 PMAQI
27th Jul 2026315 PMAQI
27th Jul 2026336 PMAQI
27th Jul 2026387 PMAQI
27th Jul 2026428 PMAQI
27th Jul 2026529 PMAQI
27th Jul 20265010 PMAQI
27th Jul 20264411 PMAQI
28th Jul 20263612 AMAQI
28th Jul 2026361 AMAQI
28th Jul 2026332 AMAQI
28th Jul 2026313 AMAQI
28th Jul 2026294 AMAQI
28th Jul 2026335 AMAQI
30°C26/33°C
28th Jul 2026296 AMAQI
28th Jul 2026317 AMAQI
28th Jul 2026368 AMAQI
28th Jul 2026319 AMAQI
28th Jul 20263110 AMAQI
28th Jul 20263311 AMAQI
28th Jul 20264212 PMAQI
28th Jul 2026361 PMAQI
28th Jul 2026312 PMAQI
28th Jul 2026293 PMAQI
28th Jul 2026294 PMAQI
28th Jul 2026275 PMAQI
28th Jul 2026276 PMAQI
28th Jul 2026347 PMAQI
28th Jul 2026368 PMAQI
28th Jul 2026369 PMAQI
28th Jul 20264210 PMAQI
28th Jul 20263811 PMAQI
29th Jul 20263212 AMAQI
29th Jul 2026251 AMAQI
29th Jul 2026232 AMAQI
29th Jul 2026253 AMAQI
29th Jul 2026274 AMAQI
29th Jul 2026255 AMAQI
30°C27/34°C
29th Jul 2026256 AMAQI
29th Jul 2026257 AMAQI
29th Jul 2026238 AMAQI
29th Jul 2026239 AMAQI
29th Jul 20262510 AMAQI
29th Jul 20262111 AMAQI
29th Jul 20262112 PMAQI
29th Jul 2026211 PMAQI
29th Jul 2026212 PMAQI
29th Jul 2026213 PMAQI
29th Jul 2026234 PMAQI
29th Jul 2026235 PMAQI
29th Jul 2026326 PMAQI
29th Jul 2026257 PMAQI
29th Jul 2026238 PMAQI
29th Jul 2026219 PMAQI
29th Jul 20262510 PMAQI
29th Jul 20262711 PMAQI
30th Jul 20263612 AMAQI
30th Jul 2026381 AMAQI
30th Jul 2026312 AMAQI
30th Jul 2026293 AMAQI
30th Jul 2026254 AMAQI
30th Jul 2026325 AMAQI
28°C27/31°C
30th Jul 2026366 AMAQI
30th Jul 2026387 AMAQI
30th Jul 2026298 AMAQI
30th Jul 2026259 AMAQI
30th Jul 20262910 AMAQI
30th Jul 20263311 AMAQI
30th Jul 20262512 PMAQI
30th Jul 2026361 PMAQI
30th Jul 2026312 PMAQI
30th Jul 2026383 PMAQI
30th Jul 2026364 PMAQI
30th Jul 2026275 PMAQI
30th Jul 2026296 PMAQI
30th Jul 2026257 PMAQI
30th Jul 2026218 PMAQI
30th Jul 2026219 PMAQI
30th Jul 20262510 PMAQI
30th Jul 20263611 PMAQI
31st Jul 20263612 AMAQI
31st Jul 2026361 AMAQI
31st Jul 2026382 AMAQI
31st Jul 2026363 AMAQI
31st Jul 2026364 AMAQI
31st Jul 2026365 AMAQI
29°C26/33°C
31st Jul 2026316 AMAQI
31st Jul 2026337 AMAQI
31st Jul 2026338 AMAQI
31st Jul 2026339 AMAQI
31st Jul 20262910 AMAQI
31st Jul 20263411 AMAQI
31st Jul 20262912 PMAQI
31st Jul 2026271 PMAQI
31st Jul 2026322 PMAQI
31st Jul 2026253 PMAQI
31st Jul 2026314 PMAQI
31st Jul 2026295 PMAQI
31st Jul 2026276 PMAQI
31st Jul 2026297 PMAQI
31st Jul 2026298 PMAQI
31st Jul 2026299 PMAQI
31st Jul 20262510 PMAQI
31st Jul 20262511 PMAQI
1st Aug 20263112 AMAQI
1st Aug 2026291 AMAQI
1st Aug 2026292 AMAQI
1st Aug 2026253 AMAQI
1st Aug 2026254 AMAQI
1st Aug 2026255 AMAQI
28°C26/32°C
1st Aug 2026256 AMAQI
1st Aug 2026297 AMAQI
1st Aug 2026278 AMAQI
1st Aug 2026219 AMAQI
1st Aug 20262510 AMAQI
1st Aug 20262511 AMAQI
1st Aug 20262512 PMAQI
1st Aug 2026211 PMAQI
1st Aug 2026232 PMAQI
1st Aug 2026213 PMAQI
1st Aug 2026214 PMAQI
1st Aug 2026255 PMAQI
1st Aug 2026276 PMAQI
1st Aug 2026237 PMAQI
1st Aug 2026218 PMAQI
1st Aug 2026239 PMAQI
1st Aug 20262510 PMAQI
1st Aug 20262511 PMAQI
2nd Aug 20262512 AMAQI
2nd Aug 2026231 AMAQI
2nd Aug 2026272 AMAQI
2nd Aug 2026253 AMAQI
2nd Aug 2026344 AMAQI
2nd Aug 2026405 AMAQI
28°C26/31°C
2nd Aug 2026386 AMAQI
2nd Aug 2026327 AMAQI
2nd Aug 2026298 AMAQI
2nd Aug 2026279 AMAQI
2nd Aug 20262910 AMAQI
2nd Aug 20262111 AMAQI
2nd Aug 20262112 PMAQI
2nd Aug 2026231 PMAQI
2nd Aug 2026232 PMAQI
2nd Aug 2026233 PMAQI
2nd Aug 2026214 PMAQI
2nd Aug 2026255 PMAQI
2nd Aug 2026276 PMAQI
2nd Aug 2026277 PMAQI
2nd Aug 2026238 PMAQI
2nd Aug 2026279 PMAQI
2nd Aug 20263410 PMAQI
2nd Aug 20262111 PMAQI
3rd Aug 20263212 AMAQI
3rd Aug 2026401 AMAQI
3rd Aug 2026322 AMAQI
3rd Aug 2026233 AMAQI
3rd Aug 2026304 AMAQI
3rd Aug 2026385 AMAQI
28°C26/30°C
3rd Aug 2026276 AMAQI
3rd Aug 2026217 AMAQI
3rd Aug 2026218 AMAQI
3rd Aug 2026219 AMAQI
3rd Aug 20262310 AMAQI
3rd Aug 20262511 AMAQI
3rd Aug 20262512 PMAQI
3rd Aug 2026231 PMAQI
3rd Aug 2026212 PMAQI
3rd Aug 2026213 PMAQI
3rd Aug 2026214 PMAQI
3rd Aug 2026235 PMAQI
3rd Aug 2026236 PMAQI
3rd Aug 2026217 PMAQI
3rd Aug 2026218 PMAQI
3rd Aug 2026319 PMAQI
3rd Aug 20262110 PMAQI
3rd Aug 20262111 PMAQI
4th Aug 20262112 AMAQI
4th Aug 2026211 AMAQI
4th Aug 2026232 AMAQI
4th Aug 2026213 AMAQI
4th Aug 2026214 AMAQI
4th Aug 2026215 AMAQI
27°C25/31°C
4th Aug 2026216 AMAQI
4th Aug 2026217 AMAQI
4th Aug 2026218 AMAQI
4th Aug 2026219 AMAQI
4th Aug 20262110 AMAQI
4th Aug 20262111 AMAQI
4th Aug 20262512 PMAQI
4th Aug 2026251 PMAQI
4th Aug 2026212 PMAQI
4th Aug 2026213 PMAQI
4th Aug 2026214 PMAQI
4th Aug 2026235 PMAQI
4th Aug 2026216 PMAQI
4th Aug 2026277 PMAQI
4th Aug 2026258 PMAQI
4th Aug 2026299 PMAQI
4th Aug 20263310 PMAQI
4th Aug 20262711 PMAQI
5th Aug 20262112 AMAQI
5th Aug 2026231 AMAQI
5th Aug 2026272 AMAQI
5th Aug 2026213 AMAQI
5th Aug 2026234 AMAQI
5th Aug 2026255 AMAQI
28°C26/31°C
5th Aug 2026216 AMAQI
5th Aug 2026297 AMAQI
5th Aug 2026298 AMAQI
5th Aug 2026239 AMAQI
5th Aug 20262310 AMAQI
5th Aug 20262111 AMAQI
5th Aug 20262112 PMAQI
5th Aug 2026211 PMAQI
5th Aug 2026252 PMAQI
5th Aug 2026233 PMAQI
5th Aug 2026254 PMAQI
5th Aug 2026255 PMAQI
5th Aug 2026256 PMAQI
5th Aug 2026337 PMAQI
5th Aug 2026258 PMAQI
5th Aug 2026339 PMAQI
5th Aug 20262510 PMAQI
5th Aug 20262511 PMAQI
6th Aug 20262512 AMAQI
6th Aug 2026291 AMAQI
6th Aug 2026272 AMAQI
6th Aug 2026293 AMAQI
6th Aug 2026294 AMAQI
6th Aug 2026215 AMAQI
28°C26/30°C
6th Aug 2026216 AMAQI
6th Aug 2026237 AMAQI
6th Aug 2026218 AMAQI
6th Aug 2026219 AMAQI
6th Aug 20262110 AMAQI
6th Aug 20262111 AMAQI
6th Aug 20262112 PMAQI
6th Aug 2026271 PMAQI
6th Aug 2026312 PMAQI
6th Aug 2026273 PMAQI
6th Aug 2026324 PMAQI
6th Aug 2026365 PMAQI
6th Aug 2026446 PMAQI
6th Aug 2026367 PMAQI
6th Aug 2026218 PMAQI
6th Aug 2026299 PMAQI
6th Aug 20262710 PMAQI
6th Aug 20262711 PMAQI
7th Aug 20262912 AMAQI
7th Aug 2026331 AMAQI
7th Aug 2026302 AMAQI
7th Aug 2026213 AMAQI
7th Aug 2026214 AMAQI
7th Aug 2026235 AMAQI
28°C26/30°C
7th Aug 2026256 AMAQI
7th Aug 2026297 AMAQI
7th Aug 2026298 AMAQI
7th Aug 2026299 AMAQI
7th Aug 20262910 AMAQI
7th Aug 20263111 AMAQI
7th Aug 20263312 PMAQI
7th Aug 2026291 PMAQI
7th Aug 2026292 PMAQI
7th Aug 2026313 PMAQI
7th Aug 2026214 PMAQI
7th Aug 2026255 PMAQI
7th Aug 2026296 PMAQI
7th Aug 2026347 PMAQI
7th Aug 2026238 PMAQI
7th Aug 2026219 PMAQI
7th Aug 20262110 PMAQI
7th Aug 20262511 PMAQI
8th Aug 20262512 AMAQI
8th Aug 2026211 AMAQI
8th Aug 2026232 AMAQI
8th Aug 2026253 AMAQI
8th Aug 2026234 AMAQI
8th Aug 2026215 AMAQI
28°C26/30°C
8th Aug 2026216 AMAQI
8th Aug 2026217 AMAQI
8th Aug 2026218 AMAQI
8th Aug 2026239 AMAQI
8th Aug 20262510 AMAQI
8th Aug 20262511 AMAQI
8th Aug 20262312 PMAQI
8th Aug 2026211 PMAQI
8th Aug 2026212 PMAQI
8th Aug 2026213 PMAQI
8th Aug 2026344 PMAQI
8th Aug 2026235 PMAQI
8th Aug 2026216 PMAQI
8th Aug 2026217 PMAQI
8th Aug 2026298 PMAQI
8th Aug 2026219 PMAQI
8th Aug 20262110 PMAQI
8th Aug 20263411 PMAQI
9th Aug 20265312 AMAQI
9th Aug 2026571 AMAQI
9th Aug 2026522 AMAQI
9th Aug 2026483 AMAQI
9th Aug 2026444 AMAQI
9th Aug 2026385 AMAQI
28°C26/31°C
9th Aug 2026336 AMAQI
9th Aug 2026337 AMAQI
9th Aug 2026368 AMAQI
9th Aug 2026369 AMAQI
9th Aug 20263810 AMAQI
9th Aug 20264211 AMAQI
9th Aug 20264212 PMAQI
9th Aug 2026501 PMAQI
9th Aug 2026522 PMAQI
9th Aug 2026573 PMAQI
9th Aug 2026534 PMAQI
9th Aug 2026565 PMAQI
9th Aug 2026566 PMAQI
9th Aug 2026637 PMAQI
9th Aug 2026678 PMAQI
9th Aug 2026719 PMAQI
9th Aug 20267110 PMAQI
9th Aug 20267011 PMAQI
10th Aug 20267412 AMAQI
10th Aug 2026811 AMAQI
10th Aug 2026702 AMAQI
10th Aug 2026513 AMAQI
10th Aug 2026664 AMAQI
10th Aug 2026815 AMAQI
29°C26/32°C
10th Aug 2026626 AMAQI
10th Aug 2026587 AMAQI
10th Aug 2026528 AMAQI
10th Aug 2026519 AMAQI
10th Aug 20265410 AMAQI
10th Aug 20263111 AMAQI
10th Aug 20264012 PMAQI
10th Aug 2026501 PMAQI
10th Aug 2026522 PMAQI
10th Aug 2026573 PMAQI
10th Aug 2026594 PMAQI
10th Aug 2026645 PMAQI
10th Aug 2026626 PMAQI
10th Aug 2026607 PMAQI
10th Aug 2026668 PMAQI
10th Aug 2026599 PMAQI
10th Aug 20266610 PMAQI
10th Aug 20267111 PMAQI
11th Aug 20267212 AMAQI
11th Aug 2026681 AMAQI
11th Aug 2026762 AMAQI
11th Aug 2026803 AMAQI
11th Aug 2026804 AMAQI
11th Aug 2026865 AMAQI
30°C27/32°C
11th Aug 2026866 AMAQI
11th Aug 2026847 AMAQI
11th Aug 2026788 AMAQI
11th Aug 2026719 AMAQI
11th Aug 20266910 AMAQI
11th Aug 20266611 AMAQI
11th Aug 20265712 PMAQI
11th Aug 2026601 PMAQI
11th Aug 2026602 PMAQI
11th Aug 2026593 PMAQI
11th Aug 2026624 PMAQI
11th Aug 2026625 PMAQI
11th Aug 2026626 PMAQI
11th Aug 2026577 PMAQI
11th Aug 2026578 PMAQI
11th Aug 2026539 PMAQI
11th Aug 20265310 PMAQI
11th Aug 20266411 PMAQI
12th Aug 20266912 AMAQI
12th Aug 2026701 AMAQI
12th Aug 2026712 AMAQI
12th Aug 2026703 AMAQI
12th Aug 2026724 AMAQI
12th Aug 2026725 AMAQI
30°C28/33°C
12th Aug 2026736 AMAQI
12th Aug 2026627 AMAQI
12th Aug 2026568 AMAQI
12th Aug 2026509 AMAQI
12th Aug 20263610 AMAQI
12th Aug 20262511 AMAQI
12th Aug 20262712 PMAQI
12th Aug 2026251 PMAQI
12th Aug 2026272 PMAQI
12th Aug 2026253 PMAQI
12th Aug 2026214 PMAQI
12th Aug 2026195 PMAQI
12th Aug 2026176 PMAQI
12th Aug 2026197 PMAQI
12th Aug 2026218 PMAQI
12th Aug 2026259 PMAQI
12th Aug 20262710 PMAQI
12th Aug 20262111 PMAQI
13th Aug 20262512 AMAQI
13th Aug 2026291 AMAQI
13th Aug 2026212 AMAQI
13th Aug 2026213 AMAQI
13th Aug 2026194 AMAQI
13th Aug 2026215 AMAQI
30°C27/33°C
13th Aug 2026196 AMAQI
13th Aug 2026277 AMAQI
13th Aug 2026298 AMAQI
13th Aug 2026319 AMAQI
13th Aug 20264410 AMAQI
13th Aug 20264211 AMAQI
13th Aug 20262512 PMAQI
13th Aug 2026311 PMAQI
13th Aug 2026332 PMAQI
13th Aug 2026383 PMAQI
13th Aug 2026364 PMAQI
13th Aug 2026405 PMAQI
13th Aug 2026256 PMAQI
13th Aug 2026337 PMAQI
13th Aug 2026368 PMAQI
13th Aug 2026389 PMAQI
13th Aug 20263110 PMAQI
13th Aug 20263611 PMAQI
14th Aug 20264012 AMAQI
14th Aug 2026401 AMAQI
14th Aug 2026522 AMAQI
14th Aug 2026503 AMAQI
14th Aug 2026544 AMAQI
14th Aug 2026535 AMAQI
30°C28/33°C
14th Aug 2026556 AMAQI
14th Aug 2026567 AMAQI
14th Aug 2026578 AMAQI
14th Aug 2026549 AMAQI
14th Aug 20265410 AMAQI
14th Aug 20265211 AMAQI
14th Aug 20264812 PMAQI
14th Aug 2026481 PMAQI
14th Aug 2026482 PMAQI
14th Aug 2026423 PMAQI
14th Aug 2026484 PMAQI
14th Aug 2026485 PMAQI
14th Aug 2026506 PMAQI
14th Aug 2026487 PMAQI
14th Aug 2026468 PMAQI
14th Aug 2026429 PMAQI
14th Aug 20264010 PMAQI
14th Aug 20264211 PMAQI
15th Aug 20264012 AMAQI
15th Aug 2026421 AMAQI
15th Aug 2026472 AMAQI
15th Aug 2026503 AMAQI
15th Aug 2026504 AMAQI
15th Aug 2026425 AMAQI
29°C27/33°C
15th Aug 2026446 AMAQI
15th Aug 2026427 AMAQI
15th Aug 2026388 AMAQI
15th Aug 2026449 AMAQI
15th Aug 20264610 AMAQI
15th Aug 20263811 AMAQI
15th Aug 20263612 PMAQI
15th Aug 2026381 PMAQI
15th Aug 2026382 PMAQI
15th Aug 2026383 PMAQI
15th Aug 2026364 PMAQI
15th Aug 2026405 PMAQI
15th Aug 2026336 PMAQI
15th Aug 2026387 PMAQI
15th Aug 2026318 PMAQI
15th Aug 2026369 PMAQI
15th Aug 20264210 PMAQI
15th Aug 20264411 PMAQI
16th Aug 20264912 AMAQI
16th Aug 2026441 AMAQI
16th Aug 2026482 AMAQI
16th Aug 2026443 AMAQI
16th Aug 2026504 AMAQI
16th Aug 2026465 AMAQI
30°C27/32°C
16th Aug 2026446 AMAQI
16th Aug 2026447 AMAQI
16th Aug 2026468 AMAQI
16th Aug 2026469 AMAQI
16th Aug 20264810 AMAQI
16th Aug 20264611 AMAQI
16th Aug 20264012 PMAQI
16th Aug 2026441 PMAQI
16th Aug 2026442 PMAQI
16th Aug 2026423 PMAQI
16th Aug 2026384 PMAQI
16th Aug 2026425 PMAQI
16th Aug 2026406 PMAQI
16th Aug 2026407 PMAQI
16th Aug 2026448 PMAQI
16th Aug 2026429 PMAQI
16th Aug 20264010 PMAQI
16th Aug 20263611 PMAQI
17th Aug 20263612 AMAQI
17th Aug 2026331 AMAQI
17th Aug 2026312 AMAQI
17th Aug 2026333 AMAQI
17th Aug 2026314 AMAQI
17th Aug 2026315 AMAQI
29°C27/32°C
17th Aug 2026316 AMAQI
6 AM17th Aug 2026337 AMAQI
17th Aug 2026318 AMAQI
17th Aug 2026339 AMAQI
17th Aug 20262910 AMAQI
17th Aug 20263111 AMAQI
17th Aug 20263112 PMAQI
12 PM17th Aug 2026311 PMAQI
17th Aug 2026332 PMAQI
17th Aug 2026333 PMAQI
17th Aug 2026294 PMAQI
17th Aug 2026295 PMAQI
17th Aug 2026336 PMAQI
17th Aug 2026297 PMAQI
7 PM17th Aug 2026338 PMAQI
17th Aug 2026339 PMAQI
17th Aug 20263810 PMAQI
17th Aug 20264211 PMAQI
12 AM
5 AM
22°C21/22°C
Day time
Avg. Highest Time
6 AM - 10 AM
43AQI
5 hours / Day
150 hours / Month
Avg. Lowest Time
11 AM - 5 PM
39AQI
7 hours / Day
210 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 6 AM to 10 AM (Avg. 43), while the lowest AQI was between 11 AM to 5 PM (Avg. 39).
Night time
Avg. Highest Time
12 AM - 2 AM
45AQI
3 hours / Day
90 hours / Month
Avg. Lowest Time
8 PM
40AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 2 AM (Avg. 45), while the lowest AQI was between 8 PM to 8 PM (Avg. 40).
2026 Days Vs Air Quality
Hainan Normal University, Haikou, Hainan, China
2026
49%
112
51%
117
Total number of days with different AQI categories in last 229 days in 2026 (136 days remaining)
Good
112 DaysModerate
117 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 49%
Health Risk Level:
Significant
In 2026, 49% of 229 days were within WHO’s safe air quality limits, and 51% exceeded them. The risk of health issues is Significant, especially for those with existing respiratory or heart conditions.
Annual Air Quality Insights
Hainan Normal University, Haikou, Hainan, China
AQI levels in 2026
AQI (US)
PM₂.₅
PM₁₀
CO
SO₂
NO₂
O₃
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
-1th undefined 2026
-1th undefined 2026
-1th undefined 2026
-1th undefined 2026
1st January 2026
50AQI (US)
50AQI (US)
2nd January 2026
77AQI (US)
77AQI (US)
3rd January 2026
54AQI (US)
54AQI (US)
4th January 2026
59AQI (US)
59AQI (US)
5th January 2026
71AQI (US)
71AQI (US)
6th January 2026
95AQI (US)
95AQI (US)
7th January 2026
83AQI (US)
83AQI (US)
8th January 2026
70AQI (US)
70AQI (US)
9th January 2026
76AQI (US)
76AQI (US)
10th January 2026
73AQI (US)
73AQI (US)
11th January 2026
70AQI (US)
70AQI (US)
12th January 2026
68AQI (US)
68AQI (US)
13th January 2026
77AQI (US)
77AQI (US)
14th January 2026
93AQI (US)
93AQI (US)
15th January 2026
71AQI (US)
71AQI (US)
16th January 2026
66AQI (US)
66AQI (US)
17th January 2026
76AQI (US)
76AQI (US)
18th January 2026
77AQI (US)
77AQI (US)
19th January 2026
56AQI (US)
56AQI (US)
20th January 2026
62AQI (US)
62AQI (US)
21st January 2026
85AQI (US)
85AQI (US)
22nd January 2026
77AQI (US)
77AQI (US)
23rd January 2026
72AQI (US)
72AQI (US)
24th January 2026
81AQI (US)
81AQI (US)
25th January 2026
33AQI (US)
33AQI (US)
26th January 2026
42AQI (US)
42AQI (US)
27th January 2026
56AQI (US)
56AQI (US)
28th January 2026
84AQI (US)
84AQI (US)
29th January 2026
47AQI (US)
47AQI (US)
30th January 2026
42AQI (US)
42AQI (US)
31st January 2026
43AQI (US)
43AQI (US)
1st February 2026
51AQI (US)
51AQI (US)
2nd February 2026
59AQI (US)
59AQI (US)
3rd February 2026
48AQI (US)
48AQI (US)
4th February 2026
56AQI (US)
56AQI (US)
5th February 2026
58AQI (US)
58AQI (US)
6th February 2026
38AQI (US)
38AQI (US)
7th February 2026
55AQI (US)
55AQI (US)
8th February 2026
62AQI (US)
62AQI (US)
9th February 2026
55AQI (US)
55AQI (US)
10th February 2026
53AQI (US)
53AQI (US)
11th February 2026
42AQI (US)
42AQI (US)
12th February 2026
60AQI (US)
60AQI (US)
13th February 2026
65AQI (US)
65AQI (US)
14th February 2026
63AQI (US)
63AQI (US)
15th February 2026
51AQI (US)
51AQI (US)
16th February 2026
56AQI (US)
56AQI (US)
17th February 2026
58AQI (US)
58AQI (US)
18th February 2026
80AQI (US)
80AQI (US)
19th February 2026
63AQI (US)
63AQI (US)
20th February 2026
62AQI (US)
62AQI (US)
21st February 2026
67AQI (US)
67AQI (US)
22nd February 2026
51AQI (US)
51AQI (US)
23rd February 2026
64AQI (US)
64AQI (US)
24th February 2026
70AQI (US)
70AQI (US)
25th February 2026
64AQI (US)
64AQI (US)
26th February 2026
52AQI (US)
52AQI (US)
27th February 2026
64AQI (US)
64AQI (US)
28th February 2026
28AQI (US)
28AQI (US)
1st March 2026
29AQI (US)
29AQI (US)
2nd March 2026
46AQI (US)
46AQI (US)
3rd March 2026
43AQI (US)
43AQI (US)
4th March 2026
14AQI (US)
14AQI (US)
5th March 2026
48AQI (US)
48AQI (US)
6th March 2026
52AQI (US)
52AQI (US)
7th March 2026
58AQI (US)
58AQI (US)
8th March 2026
66AQI (US)
66AQI (US)
9th March 2026
58AQI (US)
58AQI (US)
10th March 2026
43AQI (US)
43AQI (US)
11th March 2026
72AQI (US)
72AQI (US)
12th March 2026
67AQI (US)
67AQI (US)
13th March 2026
59AQI (US)
59AQI (US)
14th March 2026
63AQI (US)
63AQI (US)
15th March 2026
61AQI (US)
61AQI (US)
16th March 2026
57AQI (US)
57AQI (US)
17th March 2026
48AQI (US)
48AQI (US)
18th March 2026
45AQI (US)
45AQI (US)
19th March 2026
45AQI (US)
45AQI (US)
20th March 2026
57AQI (US)
57AQI (US)
21st March 2026
48AQI (US)
48AQI (US)
22nd March 2026
49AQI (US)
49AQI (US)
23rd March 2026
61AQI (US)
61AQI (US)
24th March 2026
58AQI (US)
58AQI (US)
25th March 2026
54AQI (US)
54AQI (US)
26th March 2026
53AQI (US)
53AQI (US)
27th March 2026
59AQI (US)
59AQI (US)
28th March 2026
71AQI (US)
71AQI (US)
29th March 2026
62AQI (US)
62AQI (US)
30th March 2026
48AQI (US)
48AQI (US)
31st March 2026
58AQI (US)
58AQI (US)
1st April 2026
73AQI (US)
73AQI (US)
2nd April 2026
72AQI (US)
72AQI (US)
3rd April 2026
75AQI (US)
75AQI (US)
4th April 2026
72AQI (US)
72AQI (US)
5th April 2026
92AQI (US)
92AQI (US)
6th April 2026
87AQI (US)
87AQI (US)
7th April 2026
89AQI (US)
89AQI (US)
8th April 2026
77AQI (US)
77AQI (US)
9th April 2026
58AQI (US)
58AQI (US)
10th April 2026
59AQI (US)
59AQI (US)
11th April 2026
80AQI (US)
80AQI (US)
12th April 2026
76AQI (US)
76AQI (US)
13th April 2026
71AQI (US)
71AQI (US)
14th April 2026
73AQI (US)
73AQI (US)
15th April 2026
43AQI (US)
43AQI (US)
16th April 2026
43AQI (US)
43AQI (US)
17th April 2026
55AQI (US)
55AQI (US)
18th April 2026
52AQI (US)
52AQI (US)
19th April 2026
64AQI (US)
64AQI (US)
20th April 2026
64AQI (US)
64AQI (US)
21st April 2026
61AQI (US)
61AQI (US)
22nd April 2026
62AQI (US)
62AQI (US)
23rd April 2026
92AQI (US)
92AQI (US)
24th April 2026
43AQI (US)
43AQI (US)
25th April 2026
51AQI (US)
51AQI (US)
26th April 2026
52AQI (US)
52AQI (US)
27th April 2026
39AQI (US)
39AQI (US)
28th April 2026
51AQI (US)
51AQI (US)
29th April 2026
52AQI (US)
52AQI (US)
30th April 2026
29AQI (US)
29AQI (US)
1st May 2026
43AQI (US)
43AQI (US)
2nd May 2026
44AQI (US)
44AQI (US)
3rd May 2026
56AQI (US)
56AQI (US)
4th May 2026
48AQI (US)
48AQI (US)
5th May 2026
38AQI (US)
38AQI (US)
6th May 2026
32AQI (US)
32AQI (US)
7th May 2026
42AQI (US)
42AQI (US)
8th May 2026
47AQI (US)
47AQI (US)
9th May 2026
46AQI (US)
46AQI (US)
10th May 2026
47AQI (US)
47AQI (US)
11th May 2026
37AQI (US)
37AQI (US)
12th May 2026
39AQI (US)
39AQI (US)
13th May 2026
40AQI (US)
40AQI (US)
14th May 2026
55AQI (US)
55AQI (US)
15th May 2026
47AQI (US)
47AQI (US)
16th May 2026
70AQI (US)
70AQI (US)
17th May 2026
60AQI (US)
60AQI (US)
18th May 2026
56AQI (US)
56AQI (US)
19th May 2026
44AQI (US)
44AQI (US)
20th May 2026
60AQI (US)
60AQI (US)
21st May 2026
72AQI (US)
72AQI (US)
22nd May 2026
76AQI (US)
76AQI (US)
23rd May 2026
69AQI (US)
69AQI (US)
24th May 2026
66AQI (US)
66AQI (US)
25th May 2026
59AQI (US)
59AQI (US)
26th May 2026
45AQI (US)
45AQI (US)
27th May 2026
30AQI (US)
30AQI (US)
28th May 2026
28AQI (US)
28AQI (US)
29th May 2026
32AQI (US)
32AQI (US)
30th May 2026
32AQI (US)
32AQI (US)
31st May 2026
27AQI (US)
27AQI (US)
1st June 2026
35AQI (US)
35AQI (US)
2nd June 2026
35AQI (US)
35AQI (US)
3rd June 2026
35AQI (US)
35AQI (US)
4th June 2026
28AQI (US)
28AQI (US)
5th June 2026
26AQI (US)
26AQI (US)
6th June 2026
25AQI (US)
25AQI (US)
7th June 2026
24AQI (US)
24AQI (US)
8th June 2026
24AQI (US)
24AQI (US)
9th June 2026
28AQI (US)
28AQI (US)
10th June 2026
38AQI (US)
38AQI (US)
11th June 2026
55AQI (US)
55AQI (US)
12th June 2026
36AQI (US)
36AQI (US)
13th June 2026
29AQI (US)
29AQI (US)
14th June 2026
24AQI (US)
24AQI (US)
15th June 2026
44AQI (US)
44AQI (US)
16th June 2026
34AQI (US)
34AQI (US)
17th June 2026
37AQI (US)
37AQI (US)
18th June 2026
49AQI (US)
49AQI (US)
19th June 2026
29AQI (US)
29AQI (US)
20th June 2026
25AQI (US)
25AQI (US)
21st June 2026
22AQI (US)
22AQI (US)
22nd June 2026
21AQI (US)
21AQI (US)
23rd June 2026
38AQI (US)
38AQI (US)
24th June 2026
48AQI (US)
48AQI (US)
25th June 2026
53AQI (US)
53AQI (US)
26th June 2026
42AQI (US)
42AQI (US)
27th June 2026
40AQI (US)
40AQI (US)
28th June 2026
35AQI (US)
35AQI (US)
29th June 2026
25AQI (US)
25AQI (US)
30th June 2026
24AQI (US)
24AQI (US)
1st July 2026
24AQI (US)
24AQI (US)
2nd July 2026
24AQI (US)
24AQI (US)
3rd July 2026
23AQI (US)
23AQI (US)
4th July 2026
24AQI (US)
24AQI (US)
5th July 2026
24AQI (US)
24AQI (US)
6th July 2026
25AQI (US)
25AQI (US)
7th July 2026
26AQI (US)
26AQI (US)
8th July 2026
25AQI (US)
25AQI (US)
9th July 2026
25AQI (US)
25AQI (US)
10th July 2026
27AQI (US)
27AQI (US)
11th July 2026
30AQI (US)
30AQI (US)
12th July 2026
26AQI (US)
26AQI (US)
13th July 2026
28AQI (US)
28AQI (US)
14th July 2026
32AQI (US)
32AQI (US)
15th July 2026
37AQI (US)
37AQI (US)
16th July 2026
27AQI (US)
27AQI (US)
17th July 2026
32AQI (US)
32AQI (US)
18th July 2026
45AQI (US)
45AQI (US)
19th July 2026
56AQI (US)
56AQI (US)
20th July 2026
62AQI (US)
62AQI (US)
21st July 2026
62AQI (US)
62AQI (US)
22nd July 2026
59AQI (US)
59AQI (US)
23rd July 2026
62AQI (US)
62AQI (US)
24th July 2026
59AQI (US)
59AQI (US)
25th July 2026
57AQI (US)
57AQI (US)
26th July 2026
56AQI (US)
56AQI (US)
27th July 2026
48AQI (US)
48AQI (US)
28th July 2026
33AQI (US)
33AQI (US)
29th July 2026
24AQI (US)
24AQI (US)
30th July 2026
30AQI (US)
30AQI (US)
31st July 2026
31AQI (US)
31AQI (US)
1st August 2026
25AQI (US)
25AQI (US)
2nd August 2026
27AQI (US)
27AQI (US)
3rd August 2026
25AQI (US)
25AQI (US)
4th August 2026
23AQI (US)
23AQI (US)
5th August 2026
25AQI (US)
25AQI (US)
6th August 2026
27AQI (US)
27AQI (US)
7th August 2026
27AQI (US)
27AQI (US)
8th August 2026
24AQI (US)
24AQI (US)
9th August 2026
51AQI (US)
51AQI (US)
10th August 2026
60AQI (US)
60AQI (US)
11th August 2026
68AQI (US)
68AQI (US)
12th August 2026
42AQI (US)
42AQI (US)
13th August 2026
30AQI (US)
30AQI (US)
14th August 2026
49AQI (US)
49AQI (US)
15th August 2026
41AQI (US)
41AQI (US)
16th August 2026
44AQI (US)
44AQI (US)
17th August 2026
32AQI (US)
32AQI (US)
18th August 2026
19th August 2026
20th August 2026
21st August 2026
22nd August 2026
23rd August 2026
24th August 2026
25th August 2026
26th August 2026
27th August 2026
28th August 2026
29th August 2026
30th August 2026
31st August 2026
1st September 2026
2nd September 2026
3rd September 2026
4th September 2026
5th September 2026
6th September 2026
7th September 2026
8th September 2026
9th September 2026
10th September 2026
11th September 2026
12th September 2026
13th September 2026
14th September 2026
15th September 2026
16th September 2026
17th September 2026
18th September 2026
19th September 2026
20th September 2026
21st September 2026
22nd September 2026
23rd September 2026
24th September 2026
25th September 2026
26th September 2026
27th September 2026
28th September 2026
29th September 2026
30th September 2026
1st October 2026
2nd October 2026
3rd October 2026
4th October 2026
5th October 2026
6th October 2026
7th October 2026
8th October 2026
9th October 2026
10th October 2026
11th October 2026
12th October 2026
13th October 2026
14th October 2026
15th October 2026
16th October 2026
17th October 2026
18th October 2026
19th October 2026
20th October 2026
21st October 2026
22nd October 2026
23rd October 2026
24th October 2026
25th October 2026
26th October 2026
27th October 2026
28th October 2026
29th October 2026
30th October 2026
31st October 2026
1st November 2026
2nd November 2026
3rd November 2026
4th November 2026
5th November 2026
6th November 2026
7th November 2026
8th November 2026
9th November 2026
10th November 2026
11th November 2026
12th November 2026
13th November 2026
14th November 2026
15th November 2026
16th November 2026
17th November 2026
18th November 2026
19th November 2026
20th November 2026
21st November 2026
22nd November 2026
23rd November 2026
24th November 2026
25th November 2026
26th November 2026
27th November 2026
28th November 2026
29th November 2026
30th November 2026
1st December 2026
2nd December 2026
3rd December 2026
4th December 2026
5th December 2026
6th December 2026
7th December 2026
8th December 2026
9th December 2026
10th December 2026
11th December 2026
12th December 2026
13th December 2026
14th December 2026
15th December 2026
16th December 2026
17th December 2026
18th December 2026
19th December 2026
20th December 2026
21st December 2026
22nd December 2026
23rd December 2026
24th December 2026
25th December 2026
26th December 2026
27th December 2026
28th December 2026
29th December 2026
30th December 2026
31st December 2026
67AQI (US)
57AQI (US)
53AQI (US)
64AQI (US)
48AQI (US)
34AQI (US)
37AQI (US)
36AQI (US)
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202650AQI (US)
6
25
4
24
12
19
5
25
20
11
28
2
23
8
14
3
112
117
Highest AQI (US) recorded in
January67AQI (US)
Lowest AQI (US) recorded in
June34AQI (US)
202559AQI (US)
24
7
3
25
5
26
1
24
5
16
15
28
2
24
7
21
10
30
14
17
3
27
1
26
4
146
203
16
Highest AQI (US) recorded in
January86AQI (US)
Lowest AQI (US) recorded in
September36AQI (US)
202456AQI (US)
6
23
1
9
18
2
4
27
3
27
19
12
29
1
29
2
24
7
24
6
7
21
3
5
23
2
26
5
159
193
13
Highest AQI (US) recorded in
December83AQI (US)
Lowest AQI (US) recorded in
July28AQI (US)
202355AQI (US)
8
21
2
10
16
2
6
25
4
26
16
15
26
4
27
3
1
21
10
25
5
10
20
1
8
16
2
7
22
2
168
183
10
Highest AQI (US) recorded in
December73AQI (US)
Lowest AQI (US) recorded in
September37AQI (US)
202249AQI (US)
13
15
1
16
5
16
15
14
16
28
3
28
2
20
1
1
7
21
12
19
24
6
6
23
2
184
127
3
Highest AQI (US) recorded in
December66AQI (US)
Lowest AQI (US) recorded in
July31AQI (US)
202149AQI (US)
23
7
9
19
15
15
1
23
7
27
4
20
10
30
1
29
2
26
4
23
8
12
17
1
1
29
1
215
139
10
Highest AQI (US) recorded in
January87AQI (US)
Lowest AQI (US) recorded in
July32AQI (US)
202048AQI (US)
8
5
10
11
11
7
30
31
25
6
27
3
8
23
8
19
3
20
11
158
94
14
Highest AQI (US) recorded in
December85AQI (US)
Lowest AQI (US) recorded in
June31AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Most Polluted Year Recorded
2025(Avg.)
59AQI (US)Least Polluted Year Recorded
2020(Avg.)
48AQI (US)Hainan Normal University's annual 2026 AQI (US) (50) shows an average percentage change of -4.4% (improved AQI (US)) compared to previous years: 2020 (48), 2021 (49), 2022 (49), 2023 (55), 2024 (56), 2025 (59).
