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
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
20th Aug 2021
170AQILowest AQI recorded on
1st Aug 2024
38AQISame Day Analysis (2nd August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 66 of Moderate air quality, showing improvement over 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 2nd Aug - 3rd Aug 2025
Hunan Normal University, Changsha, Hunan, China
AQI
Day
Night
.
5 AM2nd Aug 2025
7 PM
4 AM3rd Aug 2025
Day time
Avg. Highest Time
4PM2nd Aug
86AQI
Avg. Lowest Time
7AM2nd Aug
59AQI
Night time
Avg. Highest Time
10PM2nd Aug
73AQI
Avg. Lowest Time
2AM3rd Aug
58AQI
In the last 24 hours,
Hunan Normal University's AQI reached its highest point of 86 at 4 PM during the Day, while the lowest point, 58, was recorded at 2 AM during the Night between 2nd Aug and 3rd Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Hunan Normal University, Changsha, Hunan, China
JulAug
04th - 05th05th - 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
Day
Night
4th Jul 2025515 AMAQI
4th Jul 2025516 AMAQI
4th Jul 2025507 AMAQI
4th Jul 2025558 AMAQI
4th Jul 2025589 AMAQI
4th Jul 20255710 AMAQI
4th Jul 20255811 AMAQI
4th Jul 20255612 PMAQI
4th Jul 2025541 PMAQI
4th Jul 2025572 PMAQI
4th Jul 2025673 PMAQI
4th Jul 2025594 PMAQI
4th Jul 2025615 PMAQI
4th Jul 2025596 PMAQI
4th Jul 2025587 PMAQI
4th Jul 2025578 PMAQI
4th Jul 2025579 PMAQI
4th Jul 20255610 PMAQI
4th Jul 20255511 PMAQI
5th Jul 20255612 AMAQI
5th Jul 2025521 AMAQI
5th Jul 2025512 AMAQI
5th Jul 2025523 AMAQI
5th Jul 2025534 AMAQI
32°C27/38°C
5th Jul 2025525 AMAQI
5th Jul 2025526 AMAQI
5th Jul 2025527 AMAQI
5th Jul 2025708 AMAQI
5th Jul 2025739 AMAQI
5th Jul 20257910 AMAQI
5th Jul 20258411 AMAQI
5th Jul 20258212 PMAQI
5th Jul 2025751 PMAQI
5th Jul 2025762 PMAQI
5th Jul 2025723 PMAQI
5th Jul 2025734 PMAQI
5th Jul 2025735 PMAQI
5th Jul 2025746 PMAQI
5th Jul 2025687 PMAQI
5th Jul 2025638 PMAQI
5th Jul 2025629 PMAQI
5th Jul 20256010 PMAQI
5th Jul 20256211 PMAQI
6th Jul 20255912 AMAQI
6th Jul 2025521 AMAQI
6th Jul 2025532 AMAQI
6th Jul 2025553 AMAQI
6th Jul 2025584 AMAQI
32°C27/38°C
6th Jul 2025575 AMAQI
6th Jul 2025576 AMAQI
6th Jul 2025577 AMAQI
6th Jul 2025648 AMAQI
6th Jul 2025729 AMAQI
6th Jul 20257310 AMAQI
6th Jul 20257311 AMAQI
6th Jul 20257412 PMAQI
6th Jul 2025761 PMAQI
6th Jul 2025752 PMAQI
6th Jul 2025723 PMAQI
6th Jul 2025704 PMAQI
6th Jul 2025735 PMAQI
6th Jul 2025736 PMAQI
6th Jul 2025717 PMAQI
6th Jul 2025668 PMAQI
6th Jul 2025689 PMAQI
6th Jul 20256810 PMAQI
6th Jul 20256811 PMAQI
7th Jul 20256612 AMAQI
7th Jul 2025561 AMAQI
7th Jul 2025562 AMAQI
7th Jul 2025583 AMAQI
7th Jul 2025604 AMAQI
32°C27/38°C
7th Jul 2025605 AMAQI
7th Jul 2025606 AMAQI
7th Jul 2025607 AMAQI
7th Jul 2025838 AMAQI
7th Jul 2025889 AMAQI
7th Jul 20259010 AMAQI
7th Jul 20259011 AMAQI
7th Jul 20258512 PMAQI
7th Jul 2025811 PMAQI
7th Jul 2025782 PMAQI
7th Jul 2025743 PMAQI
7th Jul 2025764 PMAQI
7th Jul 2025765 PMAQI
7th Jul 2025786 PMAQI
7th Jul 2025727 PMAQI
7th Jul 2025708 PMAQI
7th Jul 2025729 PMAQI
7th Jul 20257110 PMAQI
7th Jul 20257111 PMAQI
8th Jul 20257112 AMAQI
8th Jul 2025601 AMAQI
8th Jul 2025602 AMAQI
8th Jul 2025613 AMAQI
8th Jul 2025644 AMAQI
31°C26/37°C
8th Jul 2025645 AMAQI
8th Jul 2025646 AMAQI
8th Jul 2025647 AMAQI
8th Jul 2025878 AMAQI
8th Jul 2025999 AMAQI
8th Jul 202510210 AMAQI
8th Jul 202510211 AMAQI
8th Jul 20259112 PMAQI
8th Jul 2025861 PMAQI
8th Jul 2025862 PMAQI
8th Jul 2025883 PMAQI
8th Jul 2025824 PMAQI
8th Jul 2025855 PMAQI
8th Jul 2025726 PMAQI
8th Jul 2025657 PMAQI
8th Jul 2025668 PMAQI
8th Jul 2025689 PMAQI
8th Jul 20256810 PMAQI
8th Jul 20257011 PMAQI
9th Jul 20256812 AMAQI
9th Jul 2025631 AMAQI
9th Jul 2025632 AMAQI
9th Jul 2025653 AMAQI
9th Jul 2025694 AMAQI
32°C28/38°C
9th Jul 2025695 AMAQI
9th Jul 2025696 AMAQI
9th Jul 2025687 AMAQI
9th Jul 2025748 AMAQI
9th Jul 2025769 AMAQI
9th Jul 20258410 AMAQI
9th Jul 20258811 AMAQI
9th Jul 20258112 PMAQI
9th Jul 2025811 PMAQI
9th Jul 2025762 PMAQI
9th Jul 2025683 PMAQI
9th Jul 2025704 PMAQI
9th Jul 2025615 PMAQI
9th Jul 2025526 PMAQI
9th Jul 2025497 PMAQI
9th Jul 2025598 PMAQI
9th Jul 2025589 PMAQI
9th Jul 20255810 PMAQI
9th Jul 20255811 PMAQI
10th Jul 20255912 AMAQI
10th Jul 2025651 AMAQI
10th Jul 2025652 AMAQI
10th Jul 2025673 AMAQI
10th Jul 2025684 AMAQI
30°C26/36°C
10th Jul 2025685 AMAQI
10th Jul 2025686 AMAQI
10th Jul 2025677 AMAQI
10th Jul 2025558 AMAQI
10th Jul 2025499 AMAQI
10th Jul 20255210 AMAQI
10th Jul 20255411 AMAQI
10th Jul 20255412 PMAQI
10th Jul 2025541 PMAQI
10th Jul 2025522 PMAQI
10th Jul 2025513 PMAQI
10th Jul 2025454 PMAQI
10th Jul 2025465 PMAQI
10th Jul 2025486 PMAQI
10th Jul 2025507 PMAQI
10th Jul 2025588 PMAQI
10th Jul 2025589 PMAQI
10th Jul 20255810 PMAQI
10th Jul 20255811 PMAQI
11th Jul 20256012 AMAQI
11th Jul 2025641 AMAQI
11th Jul 2025642 AMAQI
11th Jul 2025633 AMAQI
11th Jul 2025624 AMAQI
30°C26/36°C
11th Jul 2025625 AMAQI
11th Jul 2025626 AMAQI
11th Jul 2025627 AMAQI
11th Jul 2025668 AMAQI
11th Jul 2025709 AMAQI
11th Jul 20257010 AMAQI
11th Jul 20256811 AMAQI
11th Jul 20256712 PMAQI
11th Jul 2025681 PMAQI
11th Jul 2025672 PMAQI
11th Jul 2025663 PMAQI
11th Jul 2025694 PMAQI
11th Jul 2025705 PMAQI
11th Jul 2025666 PMAQI
11th Jul 2025587 PMAQI
11th Jul 2025628 PMAQI
11th Jul 2025659 PMAQI
11th Jul 20256510 PMAQI
11th Jul 20256511 PMAQI
12th Jul 20256612 AMAQI
12th Jul 2025621 AMAQI
12th Jul 2025622 AMAQI
12th Jul 2025623 AMAQI
12th Jul 2025634 AMAQI
30°C25/35°C
12th Jul 2025635 AMAQI
12th Jul 2025636 AMAQI
12th Jul 2025637 AMAQI
12th Jul 2025618 AMAQI
12th Jul 2025619 AMAQI
12th Jul 20256210 AMAQI
12th Jul 20256311 AMAQI
12th Jul 20256312 PMAQI
12th Jul 2025641 PMAQI
12th Jul 2025632 PMAQI
12th Jul 2025643 PMAQI
12th Jul 2025644 PMAQI
12th Jul 2025635 PMAQI
12th Jul 2025636 PMAQI
12th Jul 2025587 PMAQI
12th Jul 2025568 PMAQI
12th Jul 2025579 PMAQI
12th Jul 20255810 PMAQI
12th Jul 20255711 PMAQI
13th Jul 20255912 AMAQI
13th Jul 2025631 AMAQI
13th Jul 2025622 AMAQI
13th Jul 2025633 AMAQI
13th Jul 2025624 AMAQI
29°C25/33°C
13th Jul 2025635 AMAQI
13th Jul 2025626 AMAQI
13th Jul 2025637 AMAQI
13th Jul 2025648 AMAQI
13th Jul 2025669 AMAQI
13th Jul 20255810 AMAQI
13th Jul 20255911 AMAQI
13th Jul 20255912 PMAQI
13th Jul 2025601 PMAQI
13th Jul 2025602 PMAQI
13th Jul 2025583 PMAQI
13th Jul 2025574 PMAQI
13th Jul 2025555 PMAQI
13th Jul 2025526 PMAQI
13th Jul 2025547 PMAQI
13th Jul 2025608 PMAQI
13th Jul 2025609 PMAQI
13th Jul 20256110 PMAQI
13th Jul 20256211 PMAQI
14th Jul 20256112 AMAQI
14th Jul 2025621 AMAQI
14th Jul 2025622 AMAQI
14th Jul 2025623 AMAQI
14th Jul 2025614 AMAQI
29°C25/33°C
14th Jul 2025615 AMAQI
14th Jul 2025616 AMAQI
14th Jul 2025627 AMAQI
14th Jul 2025628 AMAQI
14th Jul 2025609 AMAQI
14th Jul 20255810 AMAQI
14th Jul 20255911 AMAQI
14th Jul 20256012 PMAQI
14th Jul 2025601 PMAQI
14th Jul 2025582 PMAQI
14th Jul 2025623 PMAQI
14th Jul 2025614 PMAQI
14th Jul 2025605 PMAQI
14th Jul 2025666 PMAQI
14th Jul 2025627 PMAQI
14th Jul 2025628 PMAQI
14th Jul 2025629 PMAQI
14th Jul 20256210 PMAQI
14th Jul 20256611 PMAQI
15th Jul 20256612 AMAQI
15th Jul 2025621 AMAQI
15th Jul 2025612 AMAQI
15th Jul 2025613 AMAQI
15th Jul 2025614 AMAQI
30°C25/36°C
15th Jul 2025615 AMAQI
15th Jul 2025616 AMAQI
15th Jul 2025617 AMAQI
15th Jul 2025678 AMAQI
15th Jul 2025699 AMAQI
15th Jul 20256510 AMAQI
15th Jul 20256311 AMAQI
15th Jul 20256212 PMAQI
15th Jul 2025631 PMAQI
15th Jul 2025602 PMAQI
15th Jul 2025583 PMAQI
15th Jul 2025584 PMAQI
15th Jul 2025595 PMAQI
15th Jul 2025586 PMAQI
15th Jul 2025597 PMAQI
15th Jul 2025618 PMAQI
15th Jul 2025629 PMAQI
15th Jul 20256010 PMAQI
15th Jul 20255911 PMAQI
16th Jul 20256012 AMAQI
16th Jul 2025601 AMAQI
16th Jul 2025612 AMAQI
16th Jul 2025623 AMAQI
16th Jul 2025624 AMAQI
31°C27/37°C
16th Jul 2025615 AMAQI
16th Jul 2025616 AMAQI
16th Jul 2025617 AMAQI
16th Jul 2025598 AMAQI
16th Jul 2025589 AMAQI
16th Jul 20255810 AMAQI
16th Jul 20256011 AMAQI
16th Jul 20255812 PMAQI
16th Jul 2025591 PMAQI
16th Jul 2025582 PMAQI
16th Jul 2025593 PMAQI
16th Jul 2025624 PMAQI
16th Jul 2025625 PMAQI
16th Jul 2025636 PMAQI
16th Jul 2025627 PMAQI
16th Jul 2025628 PMAQI
16th Jul 2025639 PMAQI
16th Jul 20256210 PMAQI
16th Jul 20256211 PMAQI
17th Jul 20256412 AMAQI
17th Jul 2025611 AMAQI
17th Jul 2025622 AMAQI
17th Jul 2025613 AMAQI
17th Jul 2025604 AMAQI
32°C28/38°C
17th Jul 2025615 AMAQI
17th Jul 2025606 AMAQI
17th Jul 2025607 AMAQI
17th Jul 2025568 AMAQI
17th Jul 2025569 AMAQI
17th Jul 20255710 AMAQI
17th Jul 20255911 AMAQI
17th Jul 20255912 PMAQI
17th Jul 2025591 PMAQI
17th Jul 2025592 PMAQI
17th Jul 2025593 PMAQI
17th Jul 2025584 PMAQI
17th Jul 2025615 PMAQI
17th Jul 2025646 PMAQI
17th Jul 2025677 PMAQI
17th Jul 2025668 PMAQI
17th Jul 2025669 PMAQI
17th Jul 20256710 PMAQI
17th Jul 20256711 PMAQI
18th Jul 20256512 AMAQI
18th Jul 2025611 AMAQI
18th Jul 2025602 AMAQI
18th Jul 2025603 AMAQI
18th Jul 2025604 AMAQI
31°C29/35°C
18th Jul 2025605 AMAQI
18th Jul 2025606 AMAQI
18th Jul 2025607 AMAQI
18th Jul 2025948 AMAQI
18th Jul 20251009 AMAQI
18th Jul 20258010 AMAQI
18th Jul 20256411 AMAQI
18th Jul 20255312 PMAQI
18th Jul 2025501 PMAQI
18th Jul 2025582 PMAQI
18th Jul 2025643 PMAQI
18th Jul 2025634 PMAQI
18th Jul 2025665 PMAQI
18th Jul 2025666 PMAQI
18th Jul 2025627 PMAQI
18th Jul 2025618 PMAQI
18th Jul 2025639 PMAQI
18th Jul 20256310 PMAQI
18th Jul 20256211 PMAQI
19th Jul 20256112 AMAQI
19th Jul 2025611 AMAQI
19th Jul 2025612 AMAQI
19th Jul 2025623 AMAQI
19th Jul 2025634 AMAQI
32°C28/38°C
19th Jul 2025635 AMAQI
19th Jul 2025636 AMAQI
19th Jul 2025637 AMAQI
19th Jul 2025628 AMAQI
19th Jul 2025609 AMAQI
19th Jul 20256110 AMAQI
19th Jul 20255911 AMAQI
19th Jul 20256212 PMAQI
19th Jul 2025641 PMAQI
19th Jul 2025602 PMAQI
19th Jul 2025583 PMAQI
19th Jul 2025594 PMAQI
19th Jul 2025615 PMAQI
19th Jul 2025646 PMAQI
19th Jul 2025677 PMAQI
19th Jul 2025668 PMAQI
19th Jul 2025689 PMAQI
19th Jul 20256910 PMAQI
19th Jul 20257011 PMAQI
20th Jul 20256912 AMAQI
20th Jul 2025621 AMAQI
20th Jul 2025622 AMAQI
20th Jul 2025623 AMAQI
20th Jul 2025624 AMAQI
31°C27/38°C
20th Jul 2025625 AMAQI
20th Jul 2025626 AMAQI
20th Jul 2025627 AMAQI
20th Jul 2025688 AMAQI
20th Jul 2025749 AMAQI
20th Jul 20256810 AMAQI
20th Jul 20256211 AMAQI
20th Jul 20256112 PMAQI
20th Jul 2025611 PMAQI
20th Jul 2025562 PMAQI
20th Jul 2025543 PMAQI
20th Jul 2025394 PMAQI
20th Jul 2025325 PMAQI
20th Jul 2025356 PMAQI
20th Jul 2025487 PMAQI
20th Jul 2025558 PMAQI
20th Jul 2025559 PMAQI
20th Jul 20255610 PMAQI
20th Jul 20255611 PMAQI
21st Jul 20255712 AMAQI
21st Jul 2025621 AMAQI
21st Jul 2025632 AMAQI
21st Jul 2025633 AMAQI
21st Jul 2025634 AMAQI
29°C26/33°C
21st Jul 2025625 AMAQI
21st Jul 2025636 AMAQI
21st Jul 2025627 AMAQI
21st Jul 2025388 AMAQI
21st Jul 2025309 AMAQI
21st Jul 20252810 AMAQI
21st Jul 20252411 AMAQI
21st Jul 20252812 PMAQI
21st Jul 2025261 PMAQI
21st Jul 2025242 PMAQI
21st Jul 2025243 PMAQI
21st Jul 2025234 PMAQI
21st Jul 2025215 PMAQI
21st Jul 2025246 PMAQI
21st Jul 2025357 PMAQI
21st Jul 2025528 PMAQI
21st Jul 2025509 PMAQI
21st Jul 20255210 PMAQI
21st Jul 20255111 PMAQI
22nd Jul 20255212 AMAQI
22nd Jul 2025611 AMAQI
22nd Jul 2025622 AMAQI
22nd Jul 2025593 AMAQI
22nd Jul 2025574 AMAQI
29°C26/34°C
22nd Jul 2025565 AMAQI
22nd Jul 2025566 AMAQI
22nd Jul 2025567 AMAQI
22nd Jul 2025358 AMAQI
22nd Jul 2025309 AMAQI
22nd Jul 20253010 AMAQI
22nd Jul 20253111 AMAQI
22nd Jul 20253512 PMAQI
22nd Jul 2025371 PMAQI
22nd Jul 2025422 PMAQI
22nd Jul 2025443 PMAQI
22nd Jul 2025304 PMAQI
22nd Jul 2025325 PMAQI
22nd Jul 2025336 PMAQI
22nd Jul 2025417 PMAQI
22nd Jul 2025538 PMAQI
22nd Jul 2025539 PMAQI
22nd Jul 20255110 PMAQI
22nd Jul 20254911 PMAQI
23rd Jul 20255112 AMAQI
23rd Jul 2025581 AMAQI
23rd Jul 2025582 AMAQI
23rd Jul 2025563 AMAQI
23rd Jul 2025544 AMAQI
27°C25/30°C
23rd Jul 2025545 AMAQI
23rd Jul 2025556 AMAQI
23rd Jul 2025557 AMAQI
23rd Jul 2025278 AMAQI
23rd Jul 2025199 AMAQI
23rd Jul 20251910 AMAQI
23rd Jul 20252711 AMAQI
23rd Jul 20252912 PMAQI
23rd Jul 2025291 PMAQI
23rd Jul 2025312 PMAQI
23rd Jul 2025283 PMAQI
23rd Jul 2025284 PMAQI
23rd Jul 2025315 PMAQI
23rd Jul 2025336 PMAQI
23rd Jul 2025427 PMAQI
23rd Jul 2025528 PMAQI
23rd Jul 2025519 PMAQI
23rd Jul 20254810 PMAQI
23rd Jul 20255011 PMAQI
24th Jul 20255112 AMAQI
24th Jul 2025511 AMAQI
24th Jul 2025532 AMAQI
24th Jul 2025543 AMAQI
24th Jul 2025524 AMAQI
27°C25/31°C
24th Jul 2025525 AMAQI
24th Jul 2025526 AMAQI
24th Jul 2025527 AMAQI
24th Jul 2025528 AMAQI
24th Jul 2025559 AMAQI
24th Jul 20256010 AMAQI
24th Jul 20255811 AMAQI
24th Jul 20255712 PMAQI
24th Jul 2025561 PMAQI
24th Jul 2025542 PMAQI
24th Jul 2025523 PMAQI
24th Jul 2025504 PMAQI
24th Jul 2025455 PMAQI
24th Jul 2025506 PMAQI
24th Jul 2025517 PMAQI
24th Jul 2025548 PMAQI
24th Jul 2025529 PMAQI
24th Jul 20254410 PMAQI
24th Jul 20254311 PMAQI
25th Jul 20254612 AMAQI
25th Jul 2025531 AMAQI
25th Jul 2025522 AMAQI
25th Jul 2025533 AMAQI
25th Jul 2025534 AMAQI
30°C25/36°C
25th Jul 2025545 AMAQI
25th Jul 2025536 AMAQI
25th Jul 2025537 AMAQI
25th Jul 2025548 AMAQI
25th Jul 2025549 AMAQI
25th Jul 20255310 AMAQI
25th Jul 20255411 AMAQI
25th Jul 20255412 PMAQI
25th Jul 2025511 PMAQI
25th Jul 2025512 PMAQI
25th Jul 2025523 PMAQI
25th Jul 2025514 PMAQI
25th Jul 2025515 PMAQI
25th Jul 2025526 PMAQI
25th Jul 2025507 PMAQI
25th Jul 2025548 PMAQI
25th Jul 2025549 PMAQI
25th Jul 20255510 PMAQI
25th Jul 20255811 PMAQI
26th Jul 20255812 AMAQI
26th Jul 2025531 AMAQI
26th Jul 2025522 AMAQI
26th Jul 2025533 AMAQI
26th Jul 2025524 AMAQI
30°C26/37°C
26th Jul 2025535 AMAQI
26th Jul 2025536 AMAQI
26th Jul 2025527 AMAQI
26th Jul 2025648 AMAQI
26th Jul 2025689 AMAQI
26th Jul 20256210 AMAQI
26th Jul 20256111 AMAQI
26th Jul 20256012 PMAQI
26th Jul 2025601 PMAQI
26th Jul 2025592 PMAQI
26th Jul 2025583 PMAQI
26th Jul 2025534 PMAQI
26th Jul 2025525 PMAQI
26th Jul 2025536 PMAQI
26th Jul 2025557 PMAQI
26th Jul 2025568 PMAQI
26th Jul 2025549 PMAQI
26th Jul 20255410 PMAQI
26th Jul 20255611 PMAQI
27th Jul 20255712 AMAQI
27th Jul 2025541 AMAQI
27th Jul 2025542 AMAQI
27th Jul 2025543 AMAQI
27th Jul 2025554 AMAQI
31°C27/37°C
27th Jul 2025555 AMAQI
27th Jul 2025566 AMAQI
27th Jul 2025557 AMAQI
27th Jul 2025608 AMAQI
27th Jul 2025659 AMAQI
27th Jul 20257210 AMAQI
27th Jul 20256911 AMAQI
27th Jul 20256812 PMAQI
27th Jul 2025651 PMAQI
27th Jul 2025562 PMAQI
27th Jul 2025513 PMAQI
27th Jul 2025444 PMAQI
27th Jul 2025325 PMAQI
27th Jul 2025256 PMAQI
27th Jul 2025387 PMAQI
27th Jul 2025468 PMAQI
27th Jul 2025499 PMAQI
27th Jul 20255310 PMAQI
27th Jul 20255211 PMAQI
28th Jul 20255212 AMAQI
28th Jul 2025541 AMAQI
28th Jul 2025552 AMAQI
28th Jul 2025563 AMAQI
28th Jul 2025574 AMAQI
30°C26/34°C
28th Jul 2025575 AMAQI
28th Jul 2025576 AMAQI
28th Jul 2025577 AMAQI
28th Jul 2025568 AMAQI
28th Jul 2025589 AMAQI
28th Jul 20255910 AMAQI
28th Jul 20255911 AMAQI
28th Jul 20256012 PMAQI
28th Jul 2025571 PMAQI
28th Jul 2025532 PMAQI
28th Jul 2025493 PMAQI
28th Jul 2025474 PMAQI
28th Jul 2025535 PMAQI
28th Jul 2025536 PMAQI
28th Jul 2025547 PMAQI
28th Jul 2025578 PMAQI
28th Jul 2025599 PMAQI
28th Jul 20255810 PMAQI
28th Jul 20255811 PMAQI
29th Jul 20255712 AMAQI
29th Jul 2025551 AMAQI
29th Jul 2025552 AMAQI
29th Jul 2025553 AMAQI
29th Jul 2025554 AMAQI
29°C26/35°C
29th Jul 2025555 AMAQI
29th Jul 2025556 AMAQI
29th Jul 2025557 AMAQI
29th Jul 2025658 AMAQI
29th Jul 2025719 AMAQI
29th Jul 20257310 AMAQI
29th Jul 20257211 AMAQI
29th Jul 20257112 PMAQI
29th Jul 2025701 PMAQI
29th Jul 2025622 PMAQI
29th Jul 2025493 PMAQI
29th Jul 2025534 PMAQI
29th Jul 2025535 PMAQI
29th Jul 2025476 PMAQI
29th Jul 2025497 PMAQI
29th Jul 2025528 PMAQI
29th Jul 2025539 PMAQI
29th Jul 20255510 PMAQI
29th Jul 20255711 PMAQI
30th Jul 20255812 AMAQI
30th Jul 2025551 AMAQI
30th Jul 2025552 AMAQI
30th Jul 2025563 AMAQI
30th Jul 2025584 AMAQI
29°C25/34°C
30th Jul 2025585 AMAQI
30th Jul 2025586 AMAQI
30th Jul 2025587 AMAQI
30th Jul 2025678 AMAQI
30th Jul 2025749 AMAQI
30th Jul 20257410 AMAQI
30th Jul 20257411 AMAQI
30th Jul 20256812 PMAQI
30th Jul 2025531 PMAQI
30th Jul 2025482 PMAQI
30th Jul 2025423 PMAQI
30th Jul 2025374 PMAQI
30th Jul 2025325 PMAQI
30th Jul 2025386 PMAQI
30th Jul 2025467 PMAQI
30th Jul 2025548 PMAQI
30th Jul 2025569 PMAQI
30th Jul 20255610 PMAQI
30th Jul 20255611 PMAQI
31st Jul 20255712 AMAQI
31st Jul 2025571 AMAQI
31st Jul 2025572 AMAQI
31st Jul 2025563 AMAQI
31st Jul 2025564 AMAQI
29°C26/35°C
31st Jul 2025565 AMAQI
31st Jul 2025566 AMAQI
31st Jul 2025567 AMAQI
31st Jul 2025568 AMAQI
31st Jul 2025569 AMAQI
31st Jul 20257410 AMAQI
31st Jul 20258111 AMAQI
31st Jul 20257812 PMAQI
31st Jul 2025781 PMAQI
31st Jul 2025732 PMAQI
31st Jul 2025613 PMAQI
31st Jul 2025554 PMAQI
31st Jul 2025555 PMAQI
31st Jul 2025546 PMAQI
31st Jul 2025627 PMAQI
31st Jul 2025608 PMAQI
31st Jul 2025609 PMAQI
31st Jul 20256110 PMAQI
31st Jul 20256211 PMAQI
1st Aug 20256012 AMAQI
1st Aug 2025551 AMAQI
1st Aug 2025552 AMAQI
1st Aug 2025563 AMAQI
1st Aug 2025574 AMAQI
30°C25/36°C
1st Aug 2025565 AMAQI
1st Aug 2025566 AMAQI
1st Aug 2025567 AMAQI
1st Aug 2025648 AMAQI
1st Aug 2025679 AMAQI
1st Aug 20256910 AMAQI
1st Aug 20256611 AMAQI
1st Aug 20256712 PMAQI
1st Aug 2025651 PMAQI
1st Aug 2025692 PMAQI
1st Aug 2025673 PMAQI
1st Aug 2025694 PMAQI
1st Aug 2025645 PMAQI
1st Aug 2025696 PMAQI
1st Aug 2025657 PMAQI
1st Aug 2025688 PMAQI
1st Aug 2025689 PMAQI
1st Aug 20257010 PMAQI
1st Aug 20257311 PMAQI
2nd Aug 20256612 AMAQI
2nd Aug 2025571 AMAQI
2nd Aug 2025562 AMAQI
2nd Aug 2025583 AMAQI
2nd Aug 2025604 AMAQI
30°C26/36°C
2nd Aug 2025605 AMAQI
2nd Aug 2025596 AMAQI
2nd Aug 2025597 AMAQI
2nd Aug 2025748 AMAQI
2nd Aug 2025849 AMAQI
2nd Aug 20257710 AMAQI
2nd Aug 20257911 AMAQI
2nd Aug 20258212 PMAQI
2nd Aug 2025731 PMAQI
2nd Aug 2025812 PMAQI
2nd Aug 2025693 PMAQI
2nd Aug 2025864 PMAQI
2nd Aug 2025705 PMAQI
2nd Aug 2025726 PMAQI
2nd Aug 2025687 PMAQI
2nd Aug 2025678 PMAQI
2nd Aug 2025709 PMAQI
2nd Aug 20257310 PMAQI
2nd Aug 20257311 PMAQI
3rd Aug 20256512 AMAQI
3rd Aug 2025581 AMAQI
3rd Aug 2025582 AMAQI
3rd Aug 2025623 AMAQI
3rd Aug 2025634 AMAQI
31°C26/37°C
3rd Aug 2025635 AMAQI
5 AM3rd Aug 2025636 AMAQI
3rd Aug 2025637 AMAQI
3rd Aug 2025638 AMAQI
3rd Aug 2025619 AMAQI
3rd Aug 20256310 AMAQI
3rd Aug 20256511 AMAQI
3rd Aug 20256212 PMAQI
12 PM3rd Aug 2025681 PMAQI
3rd Aug 2025612 PMAQI
3rd Aug 2025663 PMAQI
3rd Aug 2025644 PMAQI
3rd Aug 2025615 PMAQI
3rd Aug 2025646 PMAQI
3rd Aug 2025627 PMAQI
7 PM3rd Aug 2025668 PMAQI
3rd Aug 2025669 PMAQI
3rd Aug 20256610 PMAQI
12 AM
4 AM
--°C/°C
Day time
Avg. Highest Time
5 AM - 7 PM
60AQI
15 hours / Day
450 hours / Month
Avg. Lowest Time
5 AM - 7 PM
60AQI
15 hours / Day
450 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 7 PM (Avg. 60), while the lowest AQI was between 5 AM to 7 PM (Avg. 60).
Night time
Avg. Highest Time
12 AM - 11 PM
59AQI
9 hours / Day
270 hours / Month
Avg. Lowest Time
12 AM - 11 PM
59AQI
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. 59), while the lowest AQI was between 12 AM to 11 PM (Avg. 59).
2025 Days Vs Air Quality
Hunan Normal University, Changsha, Hunan, China
2025
8%
17
53%
114
30%
65
7%
15
0.9%
2
0.4%
1
Total number of days with different AQI categories in last 215 days in 2025 (150 days remaining)
Good
17 DaysModerate
114 DaysPoor
65 DaysUnhealthy
15 DaysSevere
2 DaysHazardous
1 DaysUnder WHO’s Safe Air Quality Limits: 8%
Health Risk Level:
Extreme
In 2025, 8% of 215 days were within WHO’s safe air quality limits. The risk of health issues is Extreme, potentially causing respiratory problems, heart disease, skin issues, and stress, especially for children, the elderly, and those with pre-existing conditions.
Annual Air Quality Insights
Hunan Normal University, Changsha, Hunan, 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
172AQI
172AQI
2nd January 2025
177AQI
177AQI
3rd January 2025
191AQI
191AQI
4th January 2025
213AQI
213AQI
5th January 2025
146AQI
146AQI
6th January 2025
160AQI
160AQI
7th January 2025
159AQI
159AQI
8th January 2025
141AQI
141AQI
9th January 2025
142AQI
142AQI
10th January 2025
122AQI
122AQI
11th January 2025
136AQI
136AQI
12th January 2025
132AQI
132AQI
13th January 2025
136AQI
136AQI
14th January 2025
143AQI
143AQI
15th January 2025
127AQI
127AQI
16th January 2025
123AQI
123AQI
17th January 2025
125AQI
125AQI
18th January 2025
139AQI
139AQI
19th January 2025
153AQI
153AQI
20th January 2025
163AQI
163AQI
21st January 2025
158AQI
158AQI
22nd January 2025
162AQI
162AQI
23rd January 2025
236AQI
236AQI
24th January 2025
178AQI
178AQI
25th January 2025
111AQI
111AQI
26th January 2025
95AQI
95AQI
27th January 2025
113AQI
113AQI
28th January 2025
112AQI
112AQI
29th January 2025
157AQI
157AQI
30th January 2025
133AQI
133AQI
31st January 2025
125AQI
125AQI
1st February 2025
111AQI
111AQI
2nd February 2025
109AQI
109AQI
3rd February 2025
114AQI
114AQI
4th February 2025
101AQI
101AQI
5th February 2025
119AQI
119AQI
6th February 2025
101AQI
101AQI
7th February 2025
114AQI
114AQI
8th February 2025
70AQI
70AQI
9th February 2025
89AQI
89AQI
10th February 2025
95AQI
95AQI
11th February 2025
129AQI
129AQI
12th February 2025
137AQI
137AQI
13th February 2025
155AQI
155AQI
14th February 2025
150AQI
150AQI
15th February 2025
158AQI
158AQI
16th February 2025
144AQI
144AQI
17th February 2025
119AQI
119AQI
18th February 2025
110AQI
110AQI
19th February 2025
107AQI
107AQI
20th February 2025
107AQI
107AQI
21st February 2025
149AQI
149AQI
22nd February 2025
76AQI
76AQI
23rd February 2025
150AQI
150AQI
24th February 2025
131AQI
131AQI
25th February 2025
155AQI
155AQI
26th February 2025
147AQI
147AQI
27th February 2025
132AQI
132AQI
28th February 2025
120AQI
120AQI
1st March 2025
92AQI
92AQI
2nd March 2025
85AQI
85AQI
3rd March 2025
51AQI
51AQI
4th March 2025
87AQI
87AQI
5th March 2025
79AQI
79AQI
6th March 2025
114AQI
114AQI
7th March 2025
94AQI
94AQI
8th March 2025
95AQI
95AQI
9th March 2025
119AQI
119AQI
10th March 2025
103AQI
103AQI
11th March 2025
103AQI
103AQI
12th March 2025
129AQI
129AQI
13th March 2025
123AQI
123AQI
14th March 2025
72AQI
72AQI
15th March 2025
86AQI
86AQI
16th March 2025
77AQI
77AQI
17th March 2025
78AQI
78AQI
18th March 2025
81AQI
81AQI
19th March 2025
78AQI
78AQI
20th March 2025
82AQI
82AQI
21st March 2025
94AQI
94AQI
22nd March 2025
94AQI
94AQI
23rd March 2025
127AQI
127AQI
24th March 2025
106AQI
106AQI
25th March 2025
134AQI
134AQI
26th March 2025
138AQI
138AQI
27th March 2025
141AQI
141AQI
28th March 2025
87AQI
87AQI
29th March 2025
104AQI
104AQI
30th March 2025
74AQI
74AQI
31st March 2025
97AQI
97AQI
1st April 2025
91AQI
91AQI
2nd April 2025
100AQI
100AQI
3rd April 2025
100AQI
100AQI
4th April 2025
121AQI
121AQI
5th April 2025
124AQI
124AQI
6th April 2025
123AQI
123AQI
7th April 2025
137AQI
137AQI
8th April 2025
138AQI
138AQI
9th April 2025
135AQI
135AQI
10th April 2025
120AQI
120AQI
11th April 2025
115AQI
115AQI
12th April 2025
425AQI
425AQI
13th April 2025
145AQI
145AQI
14th April 2025
162AQI
162AQI
15th April 2025
116AQI
116AQI
16th April 2025
127AQI
127AQI
17th April 2025
120AQI
120AQI
18th April 2025
121AQI
121AQI
19th April 2025
81AQI
81AQI
20th April 2025
102AQI
102AQI
21st April 2025
68AQI
68AQI
22nd April 2025
88AQI
88AQI
23rd April 2025
82AQI
82AQI
24th April 2025
69AQI
69AQI
25th April 2025
75AQI
75AQI
26th April 2025
71AQI
71AQI
27th April 2025
77AQI
77AQI
28th April 2025
85AQI
85AQI
29th April 2025
99AQI
99AQI
30th April 2025
86AQI
86AQI
1st May 2025
91AQI
91AQI
2nd May 2025
85AQI
85AQI
3rd May 2025
97AQI
97AQI
4th May 2025
100AQI
100AQI
5th May 2025
80AQI
80AQI
6th May 2025
97AQI
97AQI
7th May 2025
97AQI
97AQI
8th May 2025
76AQI
76AQI
9th May 2025
78AQI
78AQI
10th May 2025
82AQI
82AQI
11th May 2025
80AQI
80AQI
12th May 2025
87AQI
87AQI
13th May 2025
85AQI
85AQI
14th May 2025
96AQI
96AQI
15th May 2025
94AQI
94AQI
16th May 2025
77AQI
77AQI
17th May 2025
81AQI
81AQI
18th May 2025
91AQI
91AQI
19th May 2025
77AQI
77AQI
20th May 2025
60AQI
60AQI
21st May 2025
61AQI
61AQI
22nd May 2025
59AQI
59AQI
23rd May 2025
73AQI
73AQI
24th May 2025
91AQI
91AQI
25th May 2025
98AQI
98AQI
26th May 2025
90AQI
90AQI
27th May 2025
113AQI
113AQI
28th May 2025
67AQI
67AQI
29th May 2025
69AQI
69AQI
30th May 2025
60AQI
60AQI
31st May 2025
58AQI
58AQI
1st June 2025
44AQI
44AQI
2nd June 2025
61AQI
61AQI
3rd June 2025
71AQI
71AQI
4th June 2025
81AQI
81AQI
5th June 2025
78AQI
78AQI
6th June 2025
78AQI
78AQI
7th June 2025
64AQI
64AQI
8th June 2025
74AQI
74AQI
9th June 2025
67AQI
67AQI
10th June 2025
74AQI
74AQI
11th June 2025
56AQI
56AQI
12th June 2025
55AQI
55AQI
13th June 2025
66AQI
66AQI
14th June 2025
53AQI
53AQI
15th June 2025
56AQI
56AQI
16th June 2025
56AQI
56AQI
17th June 2025
48AQI
48AQI
18th June 2025
47AQI
47AQI
19th June 2025
46AQI
46AQI
20th June 2025
51AQI
51AQI
21st June 2025
47AQI
47AQI
22nd June 2025
28AQI
28AQI
23rd June 2025
33AQI
33AQI
24th June 2025
42AQI
42AQI
25th June 2025
51AQI
51AQI
26th June 2025
57AQI
57AQI
27th June 2025
49AQI
49AQI
28th June 2025
47AQI
47AQI
29th June 2025
49AQI
49AQI
30th June 2025
49AQI
49AQI
1st July 2025
43AQI
43AQI
2nd July 2025
40AQI
40AQI
3rd July 2025
51AQI
51AQI
4th July 2025
55AQI
55AQI
5th July 2025
64AQI
64AQI
6th July 2025
65AQI
65AQI
7th July 2025
71AQI
71AQI
8th July 2025
74AQI
74AQI
9th July 2025
66AQI
66AQI
10th July 2025
58AQI
58AQI
11th July 2025
65AQI
65AQI
12th July 2025
62AQI
62AQI
13th July 2025
60AQI
60AQI
14th July 2025
62AQI
62AQI
15th July 2025
61AQI
61AQI
16th July 2025
61AQI
61AQI
17th July 2025
62AQI
62AQI
18th July 2025
64AQI
64AQI
19th July 2025
63AQI
63AQI
20th July 2025
57AQI
57AQI
21st July 2025
44AQI
44AQI
22nd July 2025
47AQI
47AQI
23rd July 2025
43AQI
43AQI
24th July 2025
52AQI
52AQI
25th July 2025
53AQI
53AQI
26th July 2025
56AQI
56AQI
27th July 2025
52AQI
52AQI
28th July 2025
56AQI
56AQI
29th July 2025
57AQI
57AQI
30th July 2025
55AQI
55AQI
31st July 2025
61AQI
61AQI
1st August 2025
64AQI
64AQI
2nd August 2025
66AQI
66AQI
148AQI
121AQI
98AQI
117AQI
82AQI
56AQI
57AQI
65AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202596AQI
1
17
11
2
4
21
3
19
12
14
14
1
1
30
1
12
18
5
26
2
17
114
65
15
2
1
Highest AQI recorded in
January148AQI
Lowest AQI recorded in
June56AQI
2024101AQI
2
2
12
14
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
56
2
Highest AQI recorded in
January143AQI
Lowest AQI recorded in
July53AQI
2023101AQI
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 recorded in
January155AQI
Lowest AQI recorded in
July60AQI
2022103AQI
5
9
14
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
37
3
Highest AQI recorded in
January148AQI
Lowest AQI recorded in
July40AQI
2021108AQI
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 recorded in
January151AQI
Lowest AQI recorded in
July70AQI
2020100AQI
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 recorded in
December162AQI
Lowest AQI recorded in
June62AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2021(Avg.)
108AQILeast Polluted Year Recorded
2025(Avg.)
96AQIHunan Normal University's annual 2025 AQI (96) shows an average percentage change of -5.8% (improved AQI) compared to previous years: 2020 (100), 2021 (108), 2022 (103), 2023 (101), 2024 (101).
