Hunan Normal University, Changsha, Hunan, 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
Hunan Normal University, Changsha, Hunan, China
2022
2023
2024
2025
2026
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
20th Aug 2023
104AQILowest AQI recorded on
11th Aug 2026
17AQISame Day Analysis (13th August):
On this day, AQI across the 5 years varied significantly: 2026 ranks 4th highest AQI at 28 of Good air quality, showing improvement over 2025, 2024 and 2023 on the same day.
Day & Night AQI Trend: 12th Aug - 13th Aug 2026
Hunan Normal University, Changsha, Hunan, China
AQI
Day
Night
.
5 AM12th Aug 2026
7 PM
4 AM13th Aug 2026
Day time
Avg. Highest Time
3PM12th Aug
25AQI
Avg. Lowest Time
1PM12th Aug
8AQI
Night time
Avg. Highest Time
9PM12th Aug
36AQI
Avg. Lowest Time
3AM13th Aug
21AQI
In the last 24 hours,
Hunan Normal University's AQI reached its highest point of 36 at 9 PM during the Night, while the lowest point, 8, was recorded at 1 PM during the Day between 12th Aug and 13th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Hunan Normal University, Changsha, Hunan, China
JulAug
15th - 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 - 10th10th - 11th11th - 12th12th - 13th13th
Day
Night
15th Jul 2026125 AMAQI
15th Jul 202686 AMAQI
15th Jul 202687 AMAQI
15th Jul 2026108 AMAQI
15th Jul 2026189 AMAQI
15th Jul 20262110 AMAQI
15th Jul 20262211 AMAQI
15th Jul 20261412 PMAQI
15th Jul 2026151 PMAQI
15th Jul 2026182 PMAQI
15th Jul 2026203 PMAQI
15th Jul 2026164 PMAQI
15th Jul 2026165 PMAQI
15th Jul 2026176 PMAQI
15th Jul 2026177 PMAQI
15th Jul 2026218 PMAQI
15th Jul 2026259 PMAQI
15th Jul 20262310 PMAQI
15th Jul 20262511 PMAQI
16th Jul 20262512 AMAQI
16th Jul 2026291 AMAQI
16th Jul 2026252 AMAQI
16th Jul 2026233 AMAQI
16th Jul 2026214 AMAQI
31°C28/37°C
16th Jul 2026195 AMAQI
16th Jul 2026176 AMAQI
16th Jul 2026217 AMAQI
16th Jul 2026218 AMAQI
16th Jul 2026259 AMAQI
16th Jul 20262510 AMAQI
16th Jul 20262911 AMAQI
16th Jul 20262512 PMAQI
16th Jul 2026271 PMAQI
16th Jul 2026332 PMAQI
16th Jul 2026293 PMAQI
16th Jul 2026334 PMAQI
16th Jul 2026335 PMAQI
16th Jul 2026366 PMAQI
16th Jul 2026367 PMAQI
16th Jul 2026368 PMAQI
16th Jul 2026409 PMAQI
16th Jul 20263810 PMAQI
16th Jul 20263011 PMAQI
17th Jul 20262912 AMAQI
17th Jul 2026221 AMAQI
17th Jul 2026202 AMAQI
17th Jul 2026203 AMAQI
17th Jul 2026214 AMAQI
31°C27/36°C
17th Jul 2026205 AMAQI
17th Jul 2026206 AMAQI
17th Jul 2026207 AMAQI
17th Jul 2026218 AMAQI
17th Jul 2026219 AMAQI
17th Jul 20262210 AMAQI
17th Jul 20262411 AMAQI
17th Jul 20262412 PMAQI
17th Jul 2026271 PMAQI
17th Jul 2026252 PMAQI
17th Jul 2026463 PMAQI
17th Jul 2026524 PMAQI
17th Jul 2026565 PMAQI
17th Jul 2026546 PMAQI
17th Jul 2026557 PMAQI
17th Jul 2026538 PMAQI
17th Jul 2026509 PMAQI
17th Jul 20265510 PMAQI
17th Jul 20265011 PMAQI
18th Jul 20263812 AMAQI
18th Jul 2026361 AMAQI
18th Jul 2026332 AMAQI
18th Jul 2026333 AMAQI
18th Jul 2026314 AMAQI
32°C28/38°C
18th Jul 2026295 AMAQI
18th Jul 2026296 AMAQI
18th Jul 2026297 AMAQI
18th Jul 2026298 AMAQI
18th Jul 2026369 AMAQI
18th Jul 20264010 AMAQI
18th Jul 20263611 AMAQI
18th Jul 20263312 PMAQI
18th Jul 2026331 PMAQI
18th Jul 2026292 PMAQI
18th Jul 2026333 PMAQI
18th Jul 2026334 PMAQI
18th Jul 2026365 PMAQI
18th Jul 2026386 PMAQI
18th Jul 2026367 PMAQI
18th Jul 2026368 PMAQI
18th Jul 2026429 PMAQI
18th Jul 20264210 PMAQI
18th Jul 20264611 PMAQI
19th Jul 20264212 AMAQI
19th Jul 2026291 AMAQI
19th Jul 2026212 AMAQI
19th Jul 2026213 AMAQI
19th Jul 2026214 AMAQI
30°C26/34°C
19th Jul 2026215 AMAQI
19th Jul 2026346 AMAQI
19th Jul 2026297 AMAQI
19th Jul 2026258 AMAQI
19th Jul 2026219 AMAQI
19th Jul 20262110 AMAQI
19th Jul 20262111 AMAQI
19th Jul 20262512 PMAQI
19th Jul 2026251 PMAQI
19th Jul 2026232 PMAQI
19th Jul 2026213 PMAQI
19th Jul 2026254 PMAQI
19th Jul 2026295 PMAQI
19th Jul 2026296 PMAQI
19th Jul 2026217 PMAQI
19th Jul 2026258 PMAQI
19th Jul 2026299 PMAQI
19th Jul 20262710 PMAQI
19th Jul 20263311 PMAQI
20th Jul 20263812 AMAQI
20th Jul 2026421 AMAQI
20th Jul 2026442 AMAQI
20th Jul 2026543 AMAQI
20th Jul 2026534 AMAQI
25°C24/27°C
20th Jul 2026525 AMAQI
20th Jul 2026586 AMAQI
20th Jul 2026627 AMAQI
20th Jul 2026528 AMAQI
20th Jul 2026589 AMAQI
20th Jul 20265410 AMAQI
20th Jul 20265511 AMAQI
20th Jul 20266212 PMAQI
20th Jul 2026661 PMAQI
20th Jul 2026642 PMAQI
20th Jul 2026573 PMAQI
20th Jul 2026564 PMAQI
20th Jul 2026585 PMAQI
20th Jul 2026606 PMAQI
20th Jul 2026567 PMAQI
20th Jul 2026588 PMAQI
20th Jul 2026579 PMAQI
20th Jul 20266610 PMAQI
20th Jul 20265311 PMAQI
21st Jul 20266412 AMAQI
21st Jul 2026641 AMAQI
21st Jul 2026672 AMAQI
21st Jul 2026703 AMAQI
21st Jul 2026634 AMAQI
24°C22/25°C
21st Jul 2026585 AMAQI
21st Jul 2026406 AMAQI
21st Jul 2026317 AMAQI
21st Jul 2026298 AMAQI
21st Jul 2026259 AMAQI
21st Jul 20264010 AMAQI
21st Jul 20262912 PMAQI
21st Jul 2026291 PMAQI
21st Jul 2026362 PMAQI
21st Jul 2026423 PMAQI
21st Jul 2026464 PMAQI
21st Jul 2026465 PMAQI
21st Jul 2026886 PMAQI
21st Jul 2026387 PMAQI
21st Jul 2026368 PMAQI
21st Jul 2026279 PMAQI
21st Jul 20262710 PMAQI
21st Jul 20262711 PMAQI
22nd Jul 20263112 AMAQI
22nd Jul 2026331 AMAQI
22nd Jul 2026312 AMAQI
22nd Jul 2026273 AMAQI
22nd Jul 2026274 AMAQI
26°C24/30°C
22nd Jul 2026275 AMAQI
22nd Jul 2026316 AMAQI
22nd Jul 2026297 AMAQI
22nd Jul 2026338 AMAQI
22nd Jul 2026409 AMAQI
22nd Jul 20263810 AMAQI
22nd Jul 20264211 AMAQI
22nd Jul 20264812 PMAQI
22nd Jul 2026461 PMAQI
22nd Jul 2026462 PMAQI
22nd Jul 2026503 PMAQI
22nd Jul 2026484 PMAQI
22nd Jul 2026485 PMAQI
22nd Jul 2026516 PMAQI
22nd Jul 2026517 PMAQI
22nd Jul 2026538 PMAQI
22nd Jul 2026549 PMAQI
22nd Jul 20265110 PMAQI
22nd Jul 20264411 PMAQI
23rd Jul 20264612 AMAQI
23rd Jul 2026531 AMAQI
23rd Jul 2026522 AMAQI
23rd Jul 2026543 AMAQI
23rd Jul 2026464 AMAQI
26°C24/29°C
23rd Jul 2026425 AMAQI
23rd Jul 2026426 AMAQI
23rd Jul 2026447 AMAQI
23rd Jul 2026428 AMAQI
23rd Jul 2026429 AMAQI
23rd Jul 20263810 AMAQI
23rd Jul 20263811 AMAQI
23rd Jul 20264212 PMAQI
23rd Jul 2026401 PMAQI
23rd Jul 2026382 PMAQI
23rd Jul 2026383 PMAQI
23rd Jul 2026494 PMAQI
23rd Jul 2026425 PMAQI
23rd Jul 2026426 PMAQI
23rd Jul 2026487 PMAQI
23rd Jul 2026508 PMAQI
23rd Jul 2026489 PMAQI
23rd Jul 20265010 PMAQI
23rd Jul 20264611 PMAQI
24th Jul 20264812 AMAQI
24th Jul 2026511 AMAQI
24th Jul 2026502 AMAQI
24th Jul 2026513 AMAQI
24th Jul 2026524 AMAQI
27°C25/33°C
24th Jul 2026535 AMAQI
24th Jul 2026546 AMAQI
24th Jul 2026507 AMAQI
24th Jul 2026548 AMAQI
24th Jul 2026559 AMAQI
24th Jul 20265610 AMAQI
24th Jul 20265511 AMAQI
24th Jul 20265512 PMAQI
24th Jul 2026571 PMAQI
24th Jul 2026622 PMAQI
24th Jul 2026553 PMAQI
24th Jul 2026564 PMAQI
24th Jul 2026525 PMAQI
24th Jul 2026496 PMAQI
24th Jul 2026447 PMAQI
24th Jul 2026488 PMAQI
24th Jul 2026509 PMAQI
24th Jul 20264610 PMAQI
24th Jul 20264611 PMAQI
25th Jul 20264412 AMAQI
25th Jul 2026541 AMAQI
25th Jul 2026542 AMAQI
25th Jul 2026553 AMAQI
25th Jul 2026584 AMAQI
30°C26/35°C
25th Jul 2026645 AMAQI
25th Jul 2026716 AMAQI
25th Jul 2026697 AMAQI
25th Jul 2026708 AMAQI
25th Jul 2026719 AMAQI
25th Jul 20266210 AMAQI
25th Jul 20266211 AMAQI
25th Jul 20265812 PMAQI
25th Jul 2026571 PMAQI
25th Jul 2026662 PMAQI
25th Jul 2026673 PMAQI
25th Jul 2026694 PMAQI
25th Jul 2026645 PMAQI
25th Jul 2026646 PMAQI
25th Jul 2026717 PMAQI
25th Jul 2026708 PMAQI
25th Jul 2026689 PMAQI
25th Jul 20267310 PMAQI
25th Jul 20267611 PMAQI
26th Jul 20267112 AMAQI
26th Jul 2026761 AMAQI
26th Jul 2026802 AMAQI
26th Jul 2026743 AMAQI
26th Jul 2026764 AMAQI
31°C27/36°C
26th Jul 2026765 AMAQI
26th Jul 2026706 AMAQI
26th Jul 2026737 AMAQI
26th Jul 2026708 AMAQI
26th Jul 2026689 AMAQI
26th Jul 20265710 AMAQI
26th Jul 20264211 AMAQI
26th Jul 20263712 PMAQI
26th Jul 2026441 PMAQI
26th Jul 2026392 PMAQI
26th Jul 2026323 PMAQI
26th Jul 2026214 PMAQI
26th Jul 2026255 PMAQI
26th Jul 2026296 PMAQI
26th Jul 2026367 PMAQI
26th Jul 2026368 PMAQI
26th Jul 2026279 PMAQI
26th Jul 20262710 PMAQI
26th Jul 20262311 PMAQI
27th Jul 20262112 AMAQI
27th Jul 2026191 AMAQI
27th Jul 2026102 AMAQI
27th Jul 2026143 AMAQI
27th Jul 202684 AMAQI
30°C26/36°C
27th Jul 202685 AMAQI
27th Jul 2026126 AMAQI
27th Jul 202687 AMAQI
27th Jul 2026168 AMAQI
27th Jul 2026129 AMAQI
27th Jul 2026810 AMAQI
27th Jul 20261911 AMAQI
27th Jul 20261712 PMAQI
27th Jul 2026191 PMAQI
27th Jul 2026192 PMAQI
27th Jul 2026273 PMAQI
27th Jul 2026274 PMAQI
27th Jul 2026295 PMAQI
27th Jul 2026236 PMAQI
27th Jul 2026197 PMAQI
27th Jul 2026258 PMAQI
27th Jul 2026279 PMAQI
27th Jul 20262710 PMAQI
27th Jul 20262311 PMAQI
28th Jul 20261912 AMAQI
28th Jul 2026211 AMAQI
28th Jul 2026212 AMAQI
28th Jul 2026213 AMAQI
28th Jul 2026234 AMAQI
24°C24/26°C
28th Jul 2026215 AMAQI
28th Jul 2026216 AMAQI
28th Jul 2026217 AMAQI
28th Jul 2026238 AMAQI
28th Jul 2026259 AMAQI
28th Jul 20262310 AMAQI
28th Jul 20262311 AMAQI
28th Jul 20262512 PMAQI
28th Jul 2026251 PMAQI
28th Jul 2026252 PMAQI
28th Jul 2026253 PMAQI
28th Jul 2026254 PMAQI
28th Jul 2026255 PMAQI
28th Jul 2026276 PMAQI
28th Jul 2026297 PMAQI
28th Jul 2026368 PMAQI
28th Jul 2026339 PMAQI
28th Jul 20263310 PMAQI
28th Jul 20263111 PMAQI
29th Jul 20263312 AMAQI
29th Jul 2026331 AMAQI
29th Jul 2026332 AMAQI
29th Jul 2026333 AMAQI
29th Jul 2026314 AMAQI
26°C23/29°C
29th Jul 2026315 AMAQI
29th Jul 2026316 AMAQI
29th Jul 2026297 AMAQI
29th Jul 2026318 AMAQI
29th Jul 2026409 AMAQI
29th Jul 20264010 AMAQI
29th Jul 20263411 AMAQI
29th Jul 20262512 PMAQI
29th Jul 2026271 PMAQI
29th Jul 2026272 PMAQI
29th Jul 2026253 PMAQI
29th Jul 2026254 PMAQI
29th Jul 2026235 PMAQI
29th Jul 2026216 PMAQI
29th Jul 2026257 PMAQI
29th Jul 2026238 PMAQI
29th Jul 2026239 PMAQI
29th Jul 20262310 PMAQI
29th Jul 20262311 PMAQI
30th Jul 20262112 AMAQI
30th Jul 2026211 AMAQI
30th Jul 2026252 AMAQI
30th Jul 2026253 AMAQI
30th Jul 2026254 AMAQI
27°C24/31°C
30th Jul 2026275 AMAQI
30th Jul 2026296 AMAQI
30th Jul 2026297 AMAQI
30th Jul 2026298 AMAQI
30th Jul 2026299 AMAQI
30th Jul 20262110 AMAQI
30th Jul 20262511 AMAQI
30th Jul 20262512 PMAQI
30th Jul 2026251 PMAQI
30th Jul 2026252 PMAQI
30th Jul 2026213 PMAQI
30th Jul 2026234 PMAQI
30th Jul 2026255 PMAQI
30th Jul 2026256 PMAQI
30th Jul 2026217 PMAQI
30th Jul 2026258 PMAQI
30th Jul 2026259 PMAQI
30th Jul 20262910 PMAQI
30th Jul 20263311 PMAQI
31st Jul 20262712 AMAQI
31st Jul 2026291 AMAQI
31st Jul 2026212 AMAQI
31st Jul 2026363 AMAQI
31st Jul 2026314 AMAQI
28°C25/34°C
31st Jul 2026345 AMAQI
31st Jul 2026296 AMAQI
31st Jul 2026327 AMAQI
31st Jul 2026298 AMAQI
31st Jul 2026299 AMAQI
31st Jul 20262110 AMAQI
31st Jul 20262911 AMAQI
31st Jul 20262112 PMAQI
31st Jul 2026251 PMAQI
31st Jul 2026252 PMAQI
31st Jul 2026213 PMAQI
31st Jul 2026214 PMAQI
31st Jul 2026255 PMAQI
31st Jul 2026256 PMAQI
31st Jul 2026217 PMAQI
31st Jul 2026218 PMAQI
31st Jul 2026219 PMAQI
31st Jul 20262110 PMAQI
31st Jul 20262111 PMAQI
1st Aug 20262112 AMAQI
1st Aug 2026231 AMAQI
1st Aug 2026252 AMAQI
1st Aug 2026233 AMAQI
1st Aug 2026234 AMAQI
29°C25/34°C
1st Aug 2026235 AMAQI
1st Aug 2026256 AMAQI
1st Aug 2026257 AMAQI
1st Aug 2026258 AMAQI
1st Aug 2026239 AMAQI
1st Aug 20262510 AMAQI
1st Aug 20262311 AMAQI
1st Aug 20262312 PMAQI
1st Aug 2026211 PMAQI
1st Aug 2026212 PMAQI
1st Aug 2026213 PMAQI
1st Aug 2026234 PMAQI
1st Aug 2026215 PMAQI
1st Aug 2026216 PMAQI
1st Aug 2026217 PMAQI
1st Aug 2026218 PMAQI
1st Aug 2026219 PMAQI
1st Aug 20262110 PMAQI
1st Aug 20262111 PMAQI
2nd Aug 20262112 AMAQI
2nd Aug 2026251 AMAQI
2nd Aug 2026272 AMAQI
2nd Aug 2026253 AMAQI
2nd Aug 2026254 AMAQI
29°C25/35°C
2nd Aug 2026255 AMAQI
2nd Aug 2026256 AMAQI
2nd Aug 2026257 AMAQI
2nd Aug 2026278 AMAQI
2nd Aug 2026259 AMAQI
2nd Aug 20262510 AMAQI
2nd Aug 20262511 AMAQI
2nd Aug 20262112 PMAQI
2nd Aug 2026251 PMAQI
2nd Aug 2026252 PMAQI
2nd Aug 2026253 PMAQI
2nd Aug 2026254 PMAQI
2nd Aug 2026235 PMAQI
2nd Aug 2026216 PMAQI
2nd Aug 2026257 PMAQI
2nd Aug 2026298 PMAQI
2nd Aug 2026299 PMAQI
2nd Aug 20262710 PMAQI
2nd Aug 20263111 PMAQI
3rd Aug 20263112 AMAQI
3rd Aug 2026271 AMAQI
3rd Aug 2026252 AMAQI
3rd Aug 2026253 AMAQI
3rd Aug 2026234 AMAQI
29°C26/35°C
3rd Aug 2026235 AMAQI
3rd Aug 2026216 AMAQI
3rd Aug 2026237 AMAQI
3rd Aug 2026218 AMAQI
3rd Aug 2026259 AMAQI
3rd Aug 20262110 AMAQI
3rd Aug 20262511 AMAQI
3rd Aug 20262912 PMAQI
3rd Aug 2026211 PMAQI
3rd Aug 2026212 PMAQI
3rd Aug 2026213 PMAQI
3rd Aug 2026214 PMAQI
3rd Aug 2026235 PMAQI
3rd Aug 2026216 PMAQI
3rd Aug 2026217 PMAQI
3rd Aug 2026218 PMAQI
3rd Aug 2026219 PMAQI
3rd Aug 20262110 PMAQI
3rd Aug 20262111 PMAQI
4th Aug 20262112 AMAQI
4th Aug 2026231 AMAQI
4th Aug 2026252 AMAQI
4th Aug 2026233 AMAQI
4th Aug 2026214 AMAQI
29°C25/34°C
4th Aug 2026235 AMAQI
4th Aug 2026236 AMAQI
4th Aug 2026237 AMAQI
4th Aug 2026238 AMAQI
4th Aug 2026219 AMAQI
4th Aug 20262310 AMAQI
4th Aug 20262111 AMAQI
4th Aug 20262112 PMAQI
4th Aug 2026211 PMAQI
4th Aug 2026252 PMAQI
4th Aug 2026233 PMAQI
4th Aug 2026254 PMAQI
4th Aug 2026235 PMAQI
4th Aug 2026236 PMAQI
4th Aug 2026277 PMAQI
4th Aug 2026278 PMAQI
4th Aug 2026349 PMAQI
4th Aug 20264410 PMAQI
4th Aug 20264811 PMAQI
5th Aug 20264912 AMAQI
5th Aug 2026631 AMAQI
5th Aug 2026622 AMAQI
5th Aug 2026633 AMAQI
5th Aug 2026594 AMAQI
28°C25/34°C
5th Aug 2026605 AMAQI
5th Aug 2026626 AMAQI
5th Aug 2026687 AMAQI
5th Aug 2026678 AMAQI
5th Aug 2026659 AMAQI
5th Aug 20266910 AMAQI
5th Aug 20265811 AMAQI
5th Aug 20264912 PMAQI
5th Aug 2026571 PMAQI
5th Aug 2026902 PMAQI
5th Aug 2026923 PMAQI
5th Aug 2026584 PMAQI
5th Aug 2026215 PMAQI
5th Aug 2026196 PMAQI
5th Aug 2026257 PMAQI
5th Aug 2026258 PMAQI
5th Aug 2026279 PMAQI
5th Aug 20262510 PMAQI
5th Aug 20262511 PMAQI
6th Aug 20263812 AMAQI
6th Aug 2026441 AMAQI
6th Aug 2026362 AMAQI
6th Aug 2026363 AMAQI
6th Aug 2026314 AMAQI
28°C25/32°C
6th Aug 2026335 AMAQI
6th Aug 2026526 AMAQI
6th Aug 2026487 AMAQI
6th Aug 2026498 AMAQI
6th Aug 2026369 AMAQI
6th Aug 20262110 AMAQI
6th Aug 20262711 AMAQI
6th Aug 20263312 PMAQI
6th Aug 2026361 PMAQI
6th Aug 2026362 PMAQI
6th Aug 2026563 PMAQI
6th Aug 2026714 PMAQI
6th Aug 2026655 PMAQI
6th Aug 2026556 PMAQI
6th Aug 2026607 PMAQI
6th Aug 2026648 PMAQI
6th Aug 2026889 PMAQI
6th Aug 20268710 PMAQI
6th Aug 20266411 PMAQI
7th Aug 20266512 AMAQI
7th Aug 2026711 AMAQI
7th Aug 2026682 AMAQI
7th Aug 2026693 AMAQI
7th Aug 2026674 AMAQI
29°C25/35°C
7th Aug 2026655 AMAQI
7th Aug 2026646 AMAQI
7th Aug 2026717 AMAQI
7th Aug 2026668 AMAQI
7th Aug 2026679 AMAQI
7th Aug 20266610 AMAQI
7th Aug 20266411 AMAQI
7th Aug 20266912 PMAQI
7th Aug 2026891 PMAQI
7th Aug 2026842 PMAQI
7th Aug 2026673 PMAQI
7th Aug 2026634 PMAQI
7th Aug 2026565 PMAQI
7th Aug 2026296 PMAQI
7th Aug 2026367 PMAQI
7th Aug 2026368 PMAQI
7th Aug 2026429 PMAQI
7th Aug 20265610 PMAQI
7th Aug 20265911 PMAQI
8th Aug 20266512 AMAQI
8th Aug 2026641 AMAQI
8th Aug 2026682 AMAQI
8th Aug 2026683 AMAQI
8th Aug 2026724 AMAQI
29°C25/35°C
8th Aug 2026875 AMAQI
8th Aug 2026996 AMAQI
8th Aug 20261007 AMAQI
8th Aug 2026908 AMAQI
8th Aug 20261029 AMAQI
8th Aug 202611410 AMAQI
8th Aug 20269711 AMAQI
8th Aug 20267912 PMAQI
8th Aug 2026541 PMAQI
8th Aug 2026502 PMAQI
8th Aug 2026683 PMAQI
8th Aug 2026514 PMAQI
8th Aug 2026505 PMAQI
8th Aug 2026446 PMAQI
8th Aug 2026407 PMAQI
8th Aug 2026538 PMAQI
8th Aug 2026529 PMAQI
8th Aug 20265010 PMAQI
8th Aug 20266011 PMAQI
9th Aug 20266812 AMAQI
9th Aug 2026761 AMAQI
9th Aug 2026732 AMAQI
9th Aug 2026803 AMAQI
9th Aug 2026844 AMAQI
29°C25/33°C
9th Aug 2026855 AMAQI
9th Aug 2026896 AMAQI
9th Aug 2026947 AMAQI
9th Aug 2026928 AMAQI
9th Aug 2026979 AMAQI
9th Aug 20268810 AMAQI
9th Aug 20269211 AMAQI
9th Aug 20268612 PMAQI
9th Aug 2026761 PMAQI
9th Aug 2026632 PMAQI
9th Aug 2026623 PMAQI
9th Aug 2026554 PMAQI
9th Aug 2026545 PMAQI
9th Aug 2026536 PMAQI
9th Aug 2026427 PMAQI
9th Aug 2026518 PMAQI
9th Aug 2026519 PMAQI
9th Aug 20265510 PMAQI
9th Aug 20265511 PMAQI
10th Aug 20265512 AMAQI
10th Aug 2026521 AMAQI
10th Aug 2026522 AMAQI
10th Aug 2026543 AMAQI
10th Aug 2026564 AMAQI
28°C25/32°C
10th Aug 2026535 AMAQI
10th Aug 2026526 AMAQI
10th Aug 2026497 AMAQI
10th Aug 2026518 AMAQI
10th Aug 2026509 AMAQI
10th Aug 20264810 AMAQI
10th Aug 20265111 AMAQI
10th Aug 20265512 PMAQI
10th Aug 2026541 PMAQI
10th Aug 2026552 PMAQI
10th Aug 2026543 PMAQI
10th Aug 2026534 PMAQI
10th Aug 2026655 PMAQI
10th Aug 2026666 PMAQI
10th Aug 2026687 PMAQI
10th Aug 2026678 PMAQI
10th Aug 2026469 PMAQI
10th Aug 20263110 PMAQI
10th Aug 20263311 PMAQI
11th Aug 20262912 AMAQI
11th Aug 2026291 AMAQI
11th Aug 2026212 AMAQI
11th Aug 2026183 AMAQI
11th Aug 2026294 AMAQI
27°C24/31°C
11th Aug 2026255 AMAQI
11th Aug 2026256 AMAQI
11th Aug 2026217 AMAQI
11th Aug 2026148 AMAQI
11th Aug 202689 AMAQI
11th Aug 2026810 AMAQI
11th Aug 2026811 AMAQI
11th Aug 20261012 PMAQI
11th Aug 202681 PMAQI
11th Aug 2026142 PMAQI
11th Aug 2026233 PMAQI
11th Aug 2026214 PMAQI
11th Aug 202695 PMAQI
11th Aug 202686 PMAQI
11th Aug 202687 PMAQI
11th Aug 2026178 PMAQI
11th Aug 2026179 PMAQI
11th Aug 20261910 PMAQI
11th Aug 20261911 PMAQI
12th Aug 20262112 AMAQI
12th Aug 2026171 AMAQI
12th Aug 2026102 AMAQI
12th Aug 202693 AMAQI
12th Aug 202684 AMAQI
23°C23/25°C
12th Aug 202685 AMAQI
12th Aug 202686 AMAQI
12th Aug 2026107 AMAQI
12th Aug 202688 AMAQI
12th Aug 202689 AMAQI
12th Aug 2026810 AMAQI
12th Aug 2026811 AMAQI
12th Aug 20261212 PMAQI
12th Aug 202681 PMAQI
12th Aug 2026192 PMAQI
12th Aug 2026253 PMAQI
12th Aug 2026254 PMAQI
12th Aug 2026255 PMAQI
12th Aug 2026256 PMAQI
12th Aug 2026257 PMAQI
12th Aug 2026338 PMAQI
12th Aug 2026369 PMAQI
12th Aug 20262710 PMAQI
12th Aug 20262511 PMAQI
13th Aug 20262512 AMAQI
13th Aug 2026251 AMAQI
13th Aug 2026252 AMAQI
13th Aug 2026213 AMAQI
13th Aug 2026254 AMAQI
23°C23/24°C
13th Aug 2026295 AMAQI
5 AM13th Aug 2026256 AMAQI
13th Aug 2026337 AMAQI
13th Aug 2026258 AMAQI
13th Aug 2026259 AMAQI
13th Aug 20262910 AMAQI
13th Aug 20262911 AMAQI
13th Aug 20262112 PMAQI
12 PM13th Aug 2026251 PMAQI
13th Aug 2026382 PMAQI
13th Aug 2026293 PMAQI
13th Aug 2026314 PMAQI
13th Aug 2026275 PMAQI
13th Aug 2026256 PMAQI
13th Aug 2026217 PMAQI
7 PM13th Aug 2026298 PMAQI
13th Aug 2026389 PMAQI
13th Aug 20262910 PMAQI
13th Aug 20263311 PMAQI
12 AM
4 AM
22°C21/23°C
Day time
Avg. Highest Time
5 AM - 4 PM
38AQI
12 hours / Day
360 hours / Month
Avg. Lowest Time
5 PM - 7 PM
36AQI
3 hours / Day
90 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 4 PM (Avg. 38), while the lowest AQI was between 5 PM to 7 PM (Avg. 36).
Night time
Avg. Highest Time
12 AM - 11 PM
38AQI
9 hours / Day
270 hours / Month
Avg. Lowest Time
12 AM - 11 PM
38AQI
9 hours / Day
270 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 11 PM (Avg. 38), while the lowest AQI was between 12 AM to 11 PM (Avg. 38).
2026 Days Vs Air Quality
Hunan Normal University, Changsha, Hunan, China
2026
28%
62
53%
119
18%
40
2%
4
Total number of days with different AQI categories in last 225 days in 2026 (140 days remaining)
Good
62 DaysModerate
119 DaysPoor
40 DaysUnhealthy
4 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 28%
Health Risk Level:
Very high
In 2026, 28% of 225 days were within WHO’s safe air quality limits. The risk of health issues is Very high, including respiratory issues, heart disease, and stress, particularly affecting vulnerable groups.
Annual Air Quality Insights
Hunan Normal University, Changsha, Hunan, 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
65AQI (US)
65AQI (US)
2nd January 2026
105AQI (US)
105AQI (US)
3rd January 2026
122AQI (US)
122AQI (US)
4th January 2026
98AQI (US)
98AQI (US)
5th January 2026
122AQI (US)
122AQI (US)
6th January 2026
148AQI (US)
148AQI (US)
7th January 2026
131AQI (US)
131AQI (US)
8th January 2026
101AQI (US)
101AQI (US)
9th January 2026
112AQI (US)
112AQI (US)
10th January 2026
122AQI (US)
122AQI (US)
11th January 2026
131AQI (US)
131AQI (US)
12th January 2026
101AQI (US)
101AQI (US)
13th January 2026
147AQI (US)
147AQI (US)
14th January 2026
111AQI (US)
111AQI (US)
15th January 2026
151AQI (US)
151AQI (US)
16th January 2026
153AQI (US)
153AQI (US)
17th January 2026
173AQI (US)
173AQI (US)
18th January 2026
180AQI (US)
180AQI (US)
19th January 2026
64AQI (US)
64AQI (US)
20th January 2026
62AQI (US)
62AQI (US)
21st January 2026
97AQI (US)
97AQI (US)
22nd January 2026
94AQI (US)
94AQI (US)
23rd January 2026
135AQI (US)
135AQI (US)
24th January 2026
97AQI (US)
97AQI (US)
25th January 2026
125AQI (US)
125AQI (US)
26th January 2026
109AQI (US)
109AQI (US)
27th January 2026
148AQI (US)
148AQI (US)
28th January 2026
150AQI (US)
150AQI (US)
29th January 2026
106AQI (US)
106AQI (US)
30th January 2026
86AQI (US)
86AQI (US)
31st January 2026
88AQI (US)
88AQI (US)
1st February 2026
76AQI (US)
76AQI (US)
2nd February 2026
84AQI (US)
84AQI (US)
3rd February 2026
73AQI (US)
73AQI (US)
4th February 2026
95AQI (US)
95AQI (US)
5th February 2026
139AQI (US)
139AQI (US)
6th February 2026
149AQI (US)
149AQI (US)
7th February 2026
116AQI (US)
116AQI (US)
8th February 2026
122AQI (US)
122AQI (US)
9th February 2026
98AQI (US)
98AQI (US)
10th February 2026
105AQI (US)
105AQI (US)
11th February 2026
86AQI (US)
86AQI (US)
12th February 2026
96AQI (US)
96AQI (US)
13th February 2026
118AQI (US)
118AQI (US)
14th February 2026
98AQI (US)
98AQI (US)
15th February 2026
89AQI (US)
89AQI (US)
16th February 2026
37AQI (US)
37AQI (US)
17th February 2026
129AQI (US)
129AQI (US)
18th February 2026
103AQI (US)
103AQI (US)
19th February 2026
98AQI (US)
98AQI (US)
20th February 2026
88AQI (US)
88AQI (US)
21st February 2026
72AQI (US)
72AQI (US)
22nd February 2026
95AQI (US)
95AQI (US)
23rd February 2026
88AQI (US)
88AQI (US)
24th February 2026
63AQI (US)
63AQI (US)
25th February 2026
79AQI (US)
79AQI (US)
26th February 2026
37AQI (US)
37AQI (US)
27th February 2026
66AQI (US)
66AQI (US)
28th February 2026
69AQI (US)
69AQI (US)
1st March 2026
21AQI (US)
21AQI (US)
2nd March 2026
58AQI (US)
58AQI (US)
3rd March 2026
100AQI (US)
100AQI (US)
4th March 2026
98AQI (US)
98AQI (US)
5th March 2026
106AQI (US)
106AQI (US)
6th March 2026
149AQI (US)
149AQI (US)
7th March 2026
148AQI (US)
148AQI (US)
8th March 2026
105AQI (US)
105AQI (US)
9th March 2026
128AQI (US)
128AQI (US)
10th March 2026
145AQI (US)
145AQI (US)
11th March 2026
90AQI (US)
90AQI (US)
12th March 2026
117AQI (US)
117AQI (US)
13th March 2026
64AQI (US)
64AQI (US)
14th March 2026
79AQI (US)
79AQI (US)
15th March 2026
117AQI (US)
117AQI (US)
16th March 2026
16AQI (US)
16AQI (US)
17th March 2026
37AQI (US)
37AQI (US)
18th March 2026
44AQI (US)
44AQI (US)
19th March 2026
79AQI (US)
79AQI (US)
20th March 2026
86AQI (US)
86AQI (US)
21st March 2026
75AQI (US)
75AQI (US)
22nd March 2026
56AQI (US)
56AQI (US)
23rd March 2026
52AQI (US)
52AQI (US)
24th March 2026
67AQI (US)
67AQI (US)
25th March 2026
119AQI (US)
119AQI (US)
26th March 2026
74AQI (US)
74AQI (US)
27th March 2026
114AQI (US)
114AQI (US)
28th March 2026
101AQI (US)
101AQI (US)
29th March 2026
95AQI (US)
95AQI (US)
30th March 2026
47AQI (US)
47AQI (US)
31st March 2026
66AQI (US)
66AQI (US)
1st April 2026
84AQI (US)
84AQI (US)
2nd April 2026
66AQI (US)
66AQI (US)
3rd April 2026
42AQI (US)
42AQI (US)
4th April 2026
60AQI (US)
60AQI (US)
5th April 2026
83AQI (US)
83AQI (US)
6th April 2026
82AQI (US)
82AQI (US)
7th April 2026
128AQI (US)
128AQI (US)
8th April 2026
114AQI (US)
114AQI (US)
9th April 2026
71AQI (US)
71AQI (US)
10th April 2026
71AQI (US)
71AQI (US)
11th April 2026
61AQI (US)
61AQI (US)
12th April 2026
68AQI (US)
68AQI (US)
13th April 2026
69AQI (US)
69AQI (US)
14th April 2026
45AQI (US)
45AQI (US)
15th April 2026
58AQI (US)
58AQI (US)
16th April 2026
52AQI (US)
52AQI (US)
17th April 2026
74AQI (US)
74AQI (US)
18th April 2026
76AQI (US)
76AQI (US)
19th April 2026
83AQI (US)
83AQI (US)
20th April 2026
80AQI (US)
80AQI (US)
21st April 2026
19AQI (US)
19AQI (US)
22nd April 2026
28AQI (US)
28AQI (US)
23rd April 2026
61AQI (US)
61AQI (US)
24th April 2026
80AQI (US)
80AQI (US)
25th April 2026
74AQI (US)
74AQI (US)
26th April 2026
79AQI (US)
79AQI (US)
27th April 2026
103AQI (US)
103AQI (US)
28th April 2026
45AQI (US)
45AQI (US)
29th April 2026
22AQI (US)
22AQI (US)
30th April 2026
51AQI (US)
51AQI (US)
1st May 2026
55AQI (US)
55AQI (US)
2nd May 2026
59AQI (US)
59AQI (US)
3rd May 2026
62AQI (US)
62AQI (US)
4th May 2026
57AQI (US)
57AQI (US)
5th May 2026
70AQI (US)
70AQI (US)
6th May 2026
76AQI (US)
76AQI (US)
7th May 2026
75AQI (US)
75AQI (US)
8th May 2026
71AQI (US)
71AQI (US)
9th May 2026
78AQI (US)
78AQI (US)
10th May 2026
80AQI (US)
80AQI (US)
11th May 2026
78AQI (US)
78AQI (US)
12th May 2026
94AQI (US)
94AQI (US)
13th May 2026
46AQI (US)
46AQI (US)
14th May 2026
47AQI (US)
47AQI (US)
15th May 2026
65AQI (US)
65AQI (US)
16th May 2026
71AQI (US)
71AQI (US)
17th May 2026
61AQI (US)
61AQI (US)
18th May 2026
55AQI (US)
55AQI (US)
19th May 2026
51AQI (US)
51AQI (US)
20th May 2026
63AQI (US)
63AQI (US)
21st May 2026
71AQI (US)
71AQI (US)
22nd May 2026
80AQI (US)
80AQI (US)
23rd May 2026
75AQI (US)
75AQI (US)
24th May 2026
73AQI (US)
73AQI (US)
25th May 2026
68AQI (US)
68AQI (US)
26th May 2026
54AQI (US)
54AQI (US)
27th May 2026
46AQI (US)
46AQI (US)
28th May 2026
62AQI (US)
62AQI (US)
29th May 2026
68AQI (US)
68AQI (US)
30th May 2026
63AQI (US)
63AQI (US)
31st May 2026
72AQI (US)
72AQI (US)
1st June 2026
82AQI (US)
82AQI (US)
2nd June 2026
78AQI (US)
78AQI (US)
3rd June 2026
94AQI (US)
94AQI (US)
4th June 2026
41AQI (US)
41AQI (US)
5th June 2026
66AQI (US)
66AQI (US)
6th June 2026
60AQI (US)
60AQI (US)
7th June 2026
84AQI (US)
84AQI (US)
8th June 2026
12AQI (US)
12AQI (US)
9th June 2026
38AQI (US)
38AQI (US)
10th June 2026
52AQI (US)
52AQI (US)
11th June 2026
73AQI (US)
73AQI (US)
12th June 2026
78AQI (US)
78AQI (US)
13th June 2026
42AQI (US)
42AQI (US)
14th June 2026
40AQI (US)
40AQI (US)
15th June 2026
29AQI (US)
29AQI (US)
16th June 2026
71AQI (US)
71AQI (US)
17th June 2026
70AQI (US)
70AQI (US)
18th June 2026
66AQI (US)
66AQI (US)
19th June 2026
24AQI (US)
24AQI (US)
20th June 2026
18AQI (US)
18AQI (US)
21st June 2026
37AQI (US)
37AQI (US)
22nd June 2026
41AQI (US)
41AQI (US)
23rd June 2026
16AQI (US)
16AQI (US)
24th June 2026
26AQI (US)
26AQI (US)
25th June 2026
47AQI (US)
47AQI (US)
26th June 2026
46AQI (US)
46AQI (US)
27th June 2026
65AQI (US)
65AQI (US)
28th June 2026
72AQI (US)
72AQI (US)
29th June 2026
88AQI (US)
88AQI (US)
30th June 2026
58AQI (US)
58AQI (US)
1st July 2026
35AQI (US)
35AQI (US)
2nd July 2026
58AQI (US)
58AQI (US)
3rd July 2026
45AQI (US)
45AQI (US)
4th July 2026
23AQI (US)
23AQI (US)
5th July 2026
26AQI (US)
26AQI (US)
6th July 2026
25AQI (US)
25AQI (US)
7th July 2026
22AQI (US)
22AQI (US)
8th July 2026
23AQI (US)
23AQI (US)
9th July 2026
25AQI (US)
25AQI (US)
10th July 2026
29AQI (US)
29AQI (US)
11th July 2026
36AQI (US)
36AQI (US)
12th July 2026
60AQI (US)
60AQI (US)
13th July 2026
64AQI (US)
64AQI (US)
14th July 2026
61AQI (US)
61AQI (US)
15th July 2026
18AQI (US)
18AQI (US)
16th July 2026
28AQI (US)
28AQI (US)
17th July 2026
34AQI (US)
34AQI (US)
18th July 2026
35AQI (US)
35AQI (US)
19th July 2026
26AQI (US)
26AQI (US)
20th July 2026
56AQI (US)
56AQI (US)
21st July 2026
44AQI (US)
44AQI (US)
22nd July 2026
41AQI (US)
41AQI (US)
23rd July 2026
45AQI (US)
45AQI (US)
24th July 2026
52AQI (US)
52AQI (US)
25th July 2026
64AQI (US)
64AQI (US)
26th July 2026
50AQI (US)
50AQI (US)
27th July 2026
18AQI (US)
18AQI (US)
28th July 2026
25AQI (US)
25AQI (US)
29th July 2026
29AQI (US)
29AQI (US)
30th July 2026
25AQI (US)
25AQI (US)
31st July 2026
26AQI (US)
26AQI (US)
1st August 2026
22AQI (US)
22AQI (US)
2nd August 2026
25AQI (US)
25AQI (US)
3rd August 2026
23AQI (US)
23AQI (US)
4th August 2026
25AQI (US)
25AQI (US)
5th August 2026
52AQI (US)
52AQI (US)
6th August 2026
49AQI (US)
49AQI (US)
7th August 2026
62AQI (US)
62AQI (US)
8th August 2026
70AQI (US)
70AQI (US)
9th August 2026
72AQI (US)
72AQI (US)
10th August 2026
53AQI (US)
53AQI (US)
11th August 2026
17AQI (US)
17AQI (US)
12th August 2026
17AQI (US)
17AQI (US)
13th August 2026
28AQI (US)
28AQI (US)
14th August 2026
15th August 2026
16th August 2026
17th August 2026
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
117AQI (US)
92AQI (US)
86AQI (US)
68AQI (US)
66AQI (US)
54AQI (US)
37AQI (US)
40AQI (US)
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202672AQI (US)
9
18
4
2
18
8
5
15
11
6
21
3
3
28
14
16
24
7
8
5
62
119
40
4
Highest AQI (US) recorded in
January117AQI (US)
Lowest AQI (US) recorded in
July37AQI (US)
202594AQI (US)
1
17
11
2
4
21
3
19
12
14
14
1
1
30
1
12
18
5
26
5
26
2
28
3
12
13
3
4
13
13
1
3
13
14
32
194
104
32
2
1
Highest AQI (US) recorded in
January148AQI (US)
Lowest AQI (US) recorded in
June56AQI (US)
2024101AQI (US)
2
2
12
13
1
2
10
10
6
1
11
17
3
1
18
11
3
18
10
8
21
1
12
19
2
29
18
12
1
11
14
5
2
8
7
13
2
14
15
33
167
108
55
2
Highest AQI (US) recorded in
December143AQI (US)
Lowest AQI (US) recorded in
July53AQI (US)
2023101AQI (US)
4
12
11
4
2
2
14
10
1
7
16
7
4
14
11
1
1
18
12
6
23
1
7
24
1
27
3
4
25
1
2
13
16
1
4
19
2
1
8
15
3
4
30
169
120
34
8
Highest AQI (US) recorded in
January155AQI (US)
Lowest AQI (US) recorded in
July60AQI (US)
2022103AQI (US)
5
9
13
3
6
11
4
3
14
11
3
14
15
1
9
20
2
16
14
18
4
1
11
18
5
11
12
3
16
12
2
3
20
8
43
107
128
36
3
Highest AQI (US) recorded in
January147AQI (US)
Lowest AQI (US) recorded in
July40AQI (US)
2021108AQI (US)
1
15
13
2
5
15
8
2
10
19
2
8
19
1
2
20
8
1
2
20
8
1
29
1
1
16
3
1
1
21
7
1
2
8
13
6
1
1
7
14
6
2
3
10
15
3
14
148
132
52
8
Highest AQI (US) recorded in
January151AQI (US)
Lowest AQI (US) recorded in
July70AQI (US)
2020100AQI (US)
1
5
5
2
4
12
5
8
10
9
20
1
6
22
3
8
21
2
4
19
7
5
4
13
9
1
7
16
6
2
5
24
34
112
74
46
Highest AQI (US) recorded in
December162AQI (US)
Lowest AQI (US) recorded in
June62AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Most Polluted Year Recorded
2021(Avg.)
108AQI (US)Least Polluted Year Recorded
2026(Avg.)
72AQI (US)Hunan Normal University's annual 2026 AQI (US) (72) shows an average percentage change of -28.7% (improved AQI (US)) compared to previous years: 2020 (100), 2021 (108), 2022 (103), 2023 (101), 2024 (101), 2025 (94).
