Country Background
HistoryAQIPM2.5PM10COSO2NO2O3

Institute Of Forestry, Huaihua, 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

Institute Of Forestry, Huaihua, Hunan, China

2023
2024
2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
17th Aug 2024
85AQI
Lowest AQI recorded on
7th Aug 2023
23AQI

Same Day Analysis (3rd August ):
On this day, AQI across the 3 years varied significantly: 2025 ranks 1st highest AQI at 62 of Moderate air quality on the same day.

Download 2024 Annual Data

World Air Quality Report

Globe

Day & Night AQI Trend: 4th Aug - 5th Aug 2025

Institute Of Forestry, Huaihua, Hunan, China

AQI
Day
Night
.

5 AM4th Aug 2025

7 PM

4 AM5th Aug 2025

Day time
Avg. Highest Time
12AMNaNth undefined

AQI

Avg. Lowest Time
12AMNaNth undefined

AQI

Night time
Avg. Highest Time
1PM4th Aug

76AQI

Avg. Lowest Time
5PM4th Aug

58AQI

In the last 24 hours,

Institute Of Forestry's AQI reached its highest point of 76 at 1 PM during the Night, while the lowest point, undefined, was recorded at 4 AM during the Night between 4th Aug and 5th Aug 2025.

Day & Night AQI Trend : Jul - Aug 2025

Institute Of Forestry, Huaihua, Hunan, China

JulAug
06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th
Day
Night
6th Jul 2025485 AMAQI
6th Jul 2025486 AMAQI
6th Jul 2025517 AMAQI
6th Jul 2025568 AMAQI
6th Jul 2025659 AMAQI
6th Jul 20257010 AMAQI
6th Jul 20256911 AMAQI
6th Jul 20257412 PMAQI
6th Jul 2025681 PMAQI
6th Jul 2025582 PMAQI
6th Jul 2025553 PMAQI
6th Jul 2025554 PMAQI
6th Jul 2025525 PMAQI
6th Jul 2025526 PMAQI
6th Jul 2025617 PMAQI
6th Jul 2025588 PMAQI
6th Jul 2025589 PMAQI
6th Jul 20255610 PMAQI
6th Jul 20255711 PMAQI
7th Jul 20255612 AMAQI
7th Jul 2025531 AMAQI
7th Jul 2025522 AMAQI
7th Jul 2025533 AMAQI
7th Jul 2025544 AMAQI

28°C22/36°C

7th Jul 2025535 AMAQI
7th Jul 2025546 AMAQI
7th Jul 2025547 AMAQI
7th Jul 2025608 AMAQI
7th Jul 2025629 AMAQI
7th Jul 20255810 AMAQI
7th Jul 20255511 AMAQI
7th Jul 20256112 PMAQI
7th Jul 2025591 PMAQI
7th Jul 2025602 PMAQI
7th Jul 2025563 PMAQI
7th Jul 2025564 PMAQI
7th Jul 2025565 PMAQI
7th Jul 2025596 PMAQI
7th Jul 2025577 PMAQI
7th Jul 2025548 PMAQI
7th Jul 2025609 PMAQI
7th Jul 20255810 PMAQI
7th Jul 20255911 PMAQI
8th Jul 20256212 AMAQI
8th Jul 2025561 AMAQI
8th Jul 2025542 AMAQI
8th Jul 2025553 AMAQI
8th Jul 2025564 AMAQI

29°C22/35°C

8th Jul 2025565 AMAQI
8th Jul 2025566 AMAQI
8th Jul 2025557 AMAQI
8th Jul 2025618 AMAQI
8th Jul 2025629 AMAQI
8th Jul 20256110 AMAQI
8th Jul 20255811 AMAQI
8th Jul 20255712 PMAQI
8th Jul 2025591 PMAQI
8th Jul 2025602 PMAQI
8th Jul 2025613 PMAQI
8th Jul 2025624 PMAQI
8th Jul 2025645 PMAQI
8th Jul 2025556 PMAQI
8th Jul 2025547 PMAQI
8th Jul 2025558 PMAQI
8th Jul 2025569 PMAQI
8th Jul 20255710 PMAQI
8th Jul 20255811 PMAQI
9th Jul 20256112 AMAQI
9th Jul 2025571 AMAQI
9th Jul 2025562 AMAQI
9th Jul 2025563 AMAQI
9th Jul 2025564 AMAQI

28°C23/36°C

9th Jul 2025565 AMAQI
9th Jul 2025566 AMAQI
9th Jul 2025587 AMAQI
9th Jul 2025688 AMAQI
9th Jul 2025799 AMAQI
9th Jul 20257610 AMAQI
9th Jul 20257111 AMAQI
9th Jul 20256812 PMAQI
9th Jul 2025721 PMAQI
9th Jul 2025672 PMAQI
9th Jul 2025623 PMAQI
9th Jul 2025574 PMAQI
9th Jul 2025605 PMAQI
9th Jul 2025646 PMAQI
9th Jul 2025647 PMAQI
9th Jul 2025588 PMAQI
9th Jul 2025579 PMAQI
9th Jul 20255810 PMAQI
9th Jul 20255911 PMAQI
10th Jul 20255812 AMAQI
10th Jul 2025571 AMAQI
10th Jul 2025582 AMAQI
10th Jul 2025583 AMAQI
10th Jul 2025594 AMAQI

29°C24/34°C

10th Jul 2025585 AMAQI
10th Jul 2025586 AMAQI
10th Jul 2025587 AMAQI
10th Jul 2025708 AMAQI
10th Jul 2025659 AMAQI
10th Jul 20255610 AMAQI
10th Jul 20255111 AMAQI
10th Jul 20255112 PMAQI
10th Jul 2025521 PMAQI
10th Jul 2025502 PMAQI
10th Jul 2025513 PMAQI
10th Jul 2025514 PMAQI
10th Jul 2025465 PMAQI
10th Jul 2025426 PMAQI
10th Jul 2025487 PMAQI
10th Jul 2025558 PMAQI
10th Jul 2025569 PMAQI
10th Jul 20255610 PMAQI
10th Jul 20255811 PMAQI
11th Jul 20255712 AMAQI
11th Jul 2025571 AMAQI
11th Jul 2025582 AMAQI
11th Jul 2025583 AMAQI
11th Jul 2025574 AMAQI

27°C24/31°C

11th Jul 2025565 AMAQI
11th Jul 2025566 AMAQI
11th Jul 2025577 AMAQI
11th Jul 2025568 AMAQI
11th Jul 2025589 AMAQI
11th Jul 20256010 AMAQI
11th Jul 20256211 AMAQI
11th Jul 20255712 PMAQI
11th Jul 2025581 PMAQI
11th Jul 2025602 PMAQI
11th Jul 2025573 PMAQI
11th Jul 2025564 PMAQI
11th Jul 2025575 PMAQI
11th Jul 2025576 PMAQI
11th Jul 2025607 PMAQI
11th Jul 2025618 PMAQI
11th Jul 2025629 PMAQI
11th Jul 20256210 PMAQI
11th Jul 20256211 PMAQI
12th Jul 20256212 AMAQI
12th Jul 2025581 AMAQI
12th Jul 2025562 AMAQI
12th Jul 2025563 AMAQI
12th Jul 2025574 AMAQI

27°C23/32°C

12th Jul 2025565 AMAQI
12th Jul 2025566 AMAQI
12th Jul 2025567 AMAQI
12th Jul 2025688 AMAQI
12th Jul 2025699 AMAQI
12th Jul 20257410 AMAQI
12th Jul 20257411 AMAQI
12th Jul 20256812 PMAQI
12th Jul 2025651 PMAQI
12th Jul 2025612 PMAQI
12th Jul 2025623 PMAQI
12th Jul 2025624 PMAQI
12th Jul 2025615 PMAQI
12th Jul 2025616 PMAQI
12th Jul 2025597 PMAQI
12th Jul 2025598 PMAQI
12th Jul 2025609 PMAQI
12th Jul 20256310 PMAQI
12th Jul 20256411 PMAQI
13th Jul 20256412 AMAQI
13th Jul 2025571 AMAQI
13th Jul 2025572 AMAQI
13th Jul 2025583 AMAQI
13th Jul 2025594 AMAQI

26°C22/32°C

13th Jul 2025595 AMAQI
13th Jul 2025596 AMAQI
13th Jul 2025607 AMAQI
13th Jul 2025688 AMAQI
13th Jul 2025769 AMAQI
13th Jul 20259010 AMAQI
13th Jul 20258311 AMAQI
13th Jul 20256812 PMAQI
13th Jul 2025621 PMAQI
13th Jul 2025582 PMAQI
13th Jul 2025553 PMAQI
13th Jul 2025534 PMAQI
13th Jul 2025535 PMAQI
13th Jul 2025536 PMAQI
13th Jul 2025567 PMAQI
13th Jul 2025588 PMAQI
13th Jul 2025609 PMAQI
13th Jul 20256010 PMAQI
13th Jul 20256111 PMAQI
14th Jul 20256012 AMAQI
14th Jul 2025601 AMAQI
14th Jul 2025592 AMAQI
14th Jul 2025603 AMAQI
14th Jul 2025594 AMAQI

27°C22/34°C

14th Jul 2025605 AMAQI
14th Jul 2025606 AMAQI
14th Jul 2025607 AMAQI
14th Jul 2025598 AMAQI
14th Jul 2025629 AMAQI
14th Jul 20256310 AMAQI
14th Jul 20256211 AMAQI
14th Jul 20256212 PMAQI
14th Jul 2025621 PMAQI
14th Jul 2025622 PMAQI
14th Jul 2025623 PMAQI
14th Jul 2025574 PMAQI
14th Jul 2025595 PMAQI
14th Jul 2025596 PMAQI
14th Jul 2025607 PMAQI
14th Jul 2025628 PMAQI
14th Jul 2025629 PMAQI
14th Jul 20256210 PMAQI
14th Jul 20256511 PMAQI
15th Jul 20256212 AMAQI
15th Jul 2025601 AMAQI
15th Jul 2025602 AMAQI
15th Jul 2025603 AMAQI
15th Jul 2025624 AMAQI

28°C23/36°C

15th Jul 2025615 AMAQI
15th Jul 2025616 AMAQI
15th Jul 2025617 AMAQI
15th Jul 2025548 AMAQI
15th Jul 2025539 AMAQI
15th Jul 20255110 AMAQI
15th Jul 20255011 AMAQI
15th Jul 20255212 PMAQI
15th Jul 2025531 PMAQI
15th Jul 2025522 PMAQI
15th Jul 2025453 PMAQI
15th Jul 2025424 PMAQI
15th Jul 2025505 PMAQI
15th Jul 2025566 PMAQI
15th Jul 2025507 PMAQI
15th Jul 2025588 PMAQI
15th Jul 2025599 PMAQI
15th Jul 20255910 PMAQI
15th Jul 20255911 PMAQI
16th Jul 20256012 AMAQI
16th Jul 2025601 AMAQI
16th Jul 2025602 AMAQI
16th Jul 2025603 AMAQI
16th Jul 2025604 AMAQI

29°C23/36°C

16th Jul 2025605 AMAQI
16th Jul 2025596 AMAQI
16th Jul 2025597 AMAQI
16th Jul 2025588 AMAQI
16th Jul 2025609 AMAQI
16th Jul 20255810 AMAQI
16th Jul 20255811 AMAQI
16th Jul 20255812 PMAQI
16th Jul 2025631 PMAQI
16th Jul 2025642 PMAQI
16th Jul 2025643 PMAQI
16th Jul 2025584 PMAQI
16th Jul 2025565 PMAQI
16th Jul 2025546 PMAQI
16th Jul 2025567 PMAQI
16th Jul 2025578 PMAQI
16th Jul 2025579 PMAQI
16th Jul 20255810 PMAQI
16th Jul 20256011 PMAQI
17th Jul 20256012 AMAQI
17th Jul 2025601 AMAQI
17th Jul 2025602 AMAQI
17th Jul 2025603 AMAQI
17th Jul 2025604 AMAQI

30°C24/37°C

17th Jul 2025605 AMAQI
17th Jul 2025606 AMAQI
17th Jul 2025607 AMAQI
17th Jul 2025628 AMAQI
17th Jul 2025609 AMAQI
17th Jul 20256310 AMAQI
17th Jul 20256011 AMAQI
17th Jul 20255912 PMAQI
17th Jul 2025561 PMAQI
17th Jul 2025542 PMAQI
17th Jul 2025553 PMAQI
17th Jul 2025584 PMAQI
17th Jul 2025615 PMAQI
17th Jul 2025606 PMAQI
17th Jul 2025637 PMAQI
17th Jul 2025648 PMAQI
17th Jul 2025619 PMAQI
17th Jul 20256010 PMAQI
17th Jul 20256011 PMAQI
18th Jul 20256112 AMAQI
18th Jul 2025601 AMAQI
18th Jul 2025602 AMAQI
18th Jul 2025603 AMAQI
18th Jul 2025604 AMAQI

30°C26/36°C

18th Jul 2025605 AMAQI
18th Jul 2025606 AMAQI
18th Jul 2025607 AMAQI
18th Jul 2025658 AMAQI
18th Jul 2025739 AMAQI
18th Jul 20257010 AMAQI
18th Jul 20256811 AMAQI
18th Jul 20256512 PMAQI
18th Jul 2025571 PMAQI
18th Jul 2025392 PMAQI
18th Jul 2025363 PMAQI
18th Jul 2025504 PMAQI
18th Jul 2025525 PMAQI
18th Jul 2025436 PMAQI
18th Jul 2025557 PMAQI
18th Jul 2025598 PMAQI
18th Jul 2025569 PMAQI
18th Jul 20255610 PMAQI
18th Jul 20255811 PMAQI
19th Jul 20256012 AMAQI
19th Jul 2025601 AMAQI
19th Jul 2025602 AMAQI
19th Jul 2025603 AMAQI
19th Jul 2025604 AMAQI

29°C24/37°C

19th Jul 2025605 AMAQI
19th Jul 2025606 AMAQI
19th Jul 2025607 AMAQI
19th Jul 2025588 AMAQI
19th Jul 2025599 AMAQI
19th Jul 20255710 AMAQI
19th Jul 20255411 AMAQI
19th Jul 20255612 PMAQI
19th Jul 2025581 PMAQI
19th Jul 2025642 PMAQI
19th Jul 2025663 PMAQI
19th Jul 2025604 PMAQI
19th Jul 2025605 PMAQI
19th Jul 2025616 PMAQI
19th Jul 2025647 PMAQI
19th Jul 2025608 PMAQI
19th Jul 2025689 PMAQI
19th Jul 20257010 PMAQI
19th Jul 20256611 PMAQI
20th Jul 20256612 AMAQI
20th Jul 2025601 AMAQI
20th Jul 2025602 AMAQI
20th Jul 2025603 AMAQI
20th Jul 2025594 AMAQI

28°C23/34°C

20th Jul 2025595 AMAQI
20th Jul 2025596 AMAQI
20th Jul 2025607 AMAQI
20th Jul 2025628 AMAQI
20th Jul 2025649 AMAQI
20th Jul 20255810 AMAQI
20th Jul 20255811 AMAQI
20th Jul 20256012 PMAQI
20th Jul 2025621 PMAQI
20th Jul 2025562 PMAQI
20th Jul 2025553 PMAQI
20th Jul 2025534 PMAQI
20th Jul 2025525 PMAQI
20th Jul 2025526 PMAQI
20th Jul 2025587 PMAQI
20th Jul 2025628 PMAQI
20th Jul 2025619 PMAQI
20th Jul 20256210 PMAQI
20th Jul 20255811 PMAQI
21st Jul 20255412 AMAQI
21st Jul 2025601 AMAQI
21st Jul 2025602 AMAQI
21st Jul 2025603 AMAQI
21st Jul 2025614 AMAQI

26°C23/30°C

21st Jul 2025605 AMAQI
21st Jul 2025616 AMAQI
21st Jul 2025627 AMAQI
21st Jul 2025308 AMAQI
21st Jul 2025209 AMAQI
21st Jul 20252410 AMAQI
21st Jul 20252411 AMAQI
21st Jul 20253112 PMAQI
21st Jul 2025321 PMAQI
21st Jul 2025332 PMAQI
21st Jul 2025353 PMAQI
21st Jul 2025404 PMAQI
21st Jul 2025245 PMAQI
21st Jul 2025256 PMAQI
21st Jul 2025427 PMAQI
21st Jul 2025548 PMAQI
21st Jul 2025539 PMAQI
21st Jul 20255410 PMAQI
21st Jul 20255211 PMAQI
22nd Jul 20255112 AMAQI
22nd Jul 2025591 AMAQI
22nd Jul 2025602 AMAQI
22nd Jul 2025593 AMAQI
22nd Jul 2025564 AMAQI

26°C24/30°C

22nd Jul 2025565 AMAQI
22nd Jul 2025566 AMAQI
22nd Jul 2025567 AMAQI
22nd Jul 2025308 AMAQI
22nd Jul 2025269 AMAQI
22nd Jul 20253010 AMAQI
22nd Jul 20252911 AMAQI
22nd Jul 20252912 PMAQI
22nd Jul 2025301 PMAQI
22nd Jul 2025292 PMAQI
22nd Jul 2025233 PMAQI
22nd Jul 2025224 PMAQI
22nd Jul 2025215 PMAQI
22nd Jul 2025246 PMAQI
22nd Jul 2025337 PMAQI
22nd Jul 2025538 PMAQI
22nd Jul 2025509 PMAQI
22nd Jul 20254610 PMAQI
22nd Jul 20254411 PMAQI
23rd Jul 20254612 AMAQI
23rd Jul 2025561 AMAQI
23rd Jul 2025572 AMAQI
23rd Jul 2025563 AMAQI
23rd Jul 2025534 AMAQI

25°C24/29°C

23rd Jul 2025535 AMAQI
23rd Jul 2025536 AMAQI
23rd Jul 2025537 AMAQI
23rd Jul 2025448 AMAQI
23rd Jul 2025289 AMAQI
23rd Jul 20253310 AMAQI
23rd Jul 20254211 AMAQI
23rd Jul 20253512 PMAQI
23rd Jul 2025331 PMAQI
23rd Jul 2025342 PMAQI
23rd Jul 2025263 PMAQI
23rd Jul 2025284 PMAQI
23rd Jul 2025265 PMAQI
23rd Jul 2025256 PMAQI
23rd Jul 2025407 PMAQI
23rd Jul 2025518 PMAQI
23rd Jul 2025479 PMAQI
23rd Jul 20254410 PMAQI
23rd Jul 20254611 PMAQI
24th Jul 20254512 AMAQI
24th Jul 2025441 AMAQI
24th Jul 2025482 AMAQI
24th Jul 2025533 AMAQI
24th Jul 2025524 AMAQI

24°C23/25°C

24th Jul 2025525 AMAQI
24th Jul 2025526 AMAQI
24th Jul 2025527 AMAQI
24th Jul 2025408 AMAQI
24th Jul 2025389 AMAQI
24th Jul 20254210 AMAQI
24th Jul 20255311 AMAQI
24th Jul 20255212 PMAQI
24th Jul 2025521 PMAQI
24th Jul 2025522 PMAQI
24th Jul 2025503 PMAQI
24th Jul 2025344 PMAQI
24th Jul 2025375 PMAQI
24th Jul 2025466 PMAQI
24th Jul 2025467 PMAQI
24th Jul 2025488 PMAQI
24th Jul 2025529 PMAQI
24th Jul 20254910 PMAQI
24th Jul 20255311 PMAQI
25th Jul 20255212 AMAQI
25th Jul 2025521 AMAQI
25th Jul 2025512 AMAQI
25th Jul 2025503 AMAQI
25th Jul 2025524 AMAQI

25°C23/30°C

25th Jul 2025525 AMAQI
25th Jul 2025526 AMAQI
25th Jul 2025527 AMAQI
25th Jul 2025388 AMAQI
25th Jul 2025479 AMAQI
25th Jul 20255410 AMAQI
25th Jul 20254611 AMAQI
25th Jul 20252912 PMAQI
25th Jul 2025341 PMAQI
25th Jul 2025422 PMAQI
25th Jul 2025483 PMAQI
25th Jul 2025404 PMAQI
25th Jul 2025485 PMAQI
25th Jul 2025506 PMAQI
25th Jul 2025467 PMAQI
25th Jul 2025518 PMAQI
25th Jul 2025519 PMAQI
25th Jul 20255510 PMAQI
25th Jul 20255511 PMAQI
26th Jul 20255612 AMAQI
26th Jul 2025521 AMAQI
26th Jul 2025522 AMAQI
26th Jul 2025513 AMAQI
26th Jul 2025514 AMAQI

28°C22/35°C

26th Jul 2025505 AMAQI
26th Jul 2025506 AMAQI
26th Jul 2025517 AMAQI
26th Jul 2025568 AMAQI
26th Jul 2025609 AMAQI
26th Jul 20256210 AMAQI
26th Jul 20256411 AMAQI
26th Jul 20255812 PMAQI
26th Jul 2025601 PMAQI
26th Jul 2025472 PMAQI
26th Jul 2025503 PMAQI
26th Jul 2025504 PMAQI
26th Jul 2025345 PMAQI
26th Jul 2025406 PMAQI
26th Jul 2025427 PMAQI
26th Jul 2025498 PMAQI
26th Jul 2025569 PMAQI
26th Jul 20255810 PMAQI
26th Jul 20255611 PMAQI
27th Jul 20255612 AMAQI
27th Jul 2025521 AMAQI
27th Jul 2025522 AMAQI
27th Jul 2025523 AMAQI
27th Jul 2025524 AMAQI

29°C23/36°C

27th Jul 2025525 AMAQI
27th Jul 2025536 AMAQI
27th Jul 2025527 AMAQI
27th Jul 2025598 AMAQI
27th Jul 2025759 AMAQI
27th Jul 20257810 AMAQI
27th Jul 20257111 AMAQI
27th Jul 20256912 PMAQI
27th Jul 2025651 PMAQI
27th Jul 2025592 PMAQI
27th Jul 2025593 PMAQI
27th Jul 2025584 PMAQI
27th Jul 2025545 PMAQI
27th Jul 2025466 PMAQI
27th Jul 2025467 PMAQI
27th Jul 2025518 PMAQI
27th Jul 2025549 PMAQI
27th Jul 20255710 PMAQI
27th Jul 20255511 PMAQI
28th Jul 20255612 AMAQI
28th Jul 2025531 AMAQI
28th Jul 2025522 AMAQI
28th Jul 2025533 AMAQI
28th Jul 2025544 AMAQI

28°C23/35°C

28th Jul 2025555 AMAQI
28th Jul 2025556 AMAQI
28th Jul 2025557 AMAQI
28th Jul 2025578 AMAQI
28th Jul 2025569 AMAQI
28th Jul 20255310 AMAQI
28th Jul 20255111 AMAQI
28th Jul 20254812 PMAQI
28th Jul 2025521 PMAQI
28th Jul 2025522 PMAQI
28th Jul 2025483 PMAQI
28th Jul 2025424 PMAQI
28th Jul 2025405 PMAQI
28th Jul 2025536 PMAQI
28th Jul 2025527 PMAQI
28th Jul 2025588 PMAQI
28th Jul 2025569 PMAQI
28th Jul 20255610 PMAQI
28th Jul 20255811 PMAQI
29th Jul 20255312 AMAQI
29th Jul 2025541 AMAQI
29th Jul 2025542 AMAQI
29th Jul 2025543 AMAQI
29th Jul 2025554 AMAQI

28°C23/34°C

29th Jul 2025555 AMAQI
29th Jul 2025546 AMAQI
29th Jul 2025557 AMAQI
29th Jul 2025558 AMAQI
29th Jul 2025619 AMAQI
29th Jul 20256310 AMAQI
29th Jul 20258711 AMAQI
29th Jul 20257212 PMAQI
29th Jul 2025681 PMAQI
29th Jul 2025612 PMAQI
29th Jul 2025433 PMAQI
29th Jul 2025394 PMAQI
29th Jul 2025525 PMAQI
29th Jul 2025546 PMAQI
29th Jul 2025517 PMAQI
29th Jul 2025538 PMAQI
29th Jul 2025549 PMAQI
29th Jul 20256010 PMAQI
29th Jul 20256011 PMAQI
30th Jul 20255712 AMAQI
30th Jul 2025541 AMAQI
30th Jul 2025552 AMAQI
30th Jul 2025553 AMAQI
30th Jul 2025574 AMAQI

29°C24/35°C

30th Jul 2025575 AMAQI
30th Jul 2025566 AMAQI
30th Jul 2025567 AMAQI
30th Jul 2025708 AMAQI
30th Jul 2025749 AMAQI
30th Jul 20257510 AMAQI
30th Jul 20256511 AMAQI
30th Jul 20256212 PMAQI
30th Jul 2025551 PMAQI
30th Jul 2025492 PMAQI
30th Jul 2025453 PMAQI
30th Jul 2025504 PMAQI
30th Jul 2025435 PMAQI
30th Jul 2025546 PMAQI
30th Jul 2025507 PMAQI
30th Jul 2025548 PMAQI
30th Jul 2025569 PMAQI
30th Jul 20256210 PMAQI
30th Jul 20255911 PMAQI
31st Jul 20255612 AMAQI
31st Jul 2025561 AMAQI
31st Jul 2025562 AMAQI
31st Jul 2025563 AMAQI
31st Jul 2025564 AMAQI

28°C23/36°C

31st Jul 2025565 AMAQI
31st Jul 2025566 AMAQI
31st Jul 2025567 AMAQI
31st Jul 2025568 AMAQI
31st Jul 2025569 AMAQI
31st Jul 20256610 AMAQI
31st Jul 20257011 AMAQI
31st Jul 20256412 PMAQI
31st Jul 2025601 PMAQI
31st Jul 2025612 PMAQI
31st Jul 2025573 PMAQI
31st Jul 2025524 PMAQI
31st Jul 2025535 PMAQI
31st Jul 2025526 PMAQI
31st Jul 2025507 PMAQI
31st Jul 2025558 PMAQI
31st Jul 2025569 PMAQI
31st Jul 20255910 PMAQI
31st Jul 20255711 PMAQI
1st Aug 20255812 AMAQI
1st Aug 2025541 AMAQI
1st Aug 2025572 AMAQI
1st Aug 2025563 AMAQI
1st Aug 2025574 AMAQI

29°C23/36°C

1st Aug 2025565 AMAQI
1st Aug 2025576 AMAQI
1st Aug 2025567 AMAQI
1st Aug 2025688 AMAQI
1st Aug 2025669 AMAQI
1st Aug 20257010 AMAQI
1st Aug 20257511 AMAQI
1st Aug 20257212 PMAQI
1st Aug 2025681 PMAQI
1st Aug 2025672 PMAQI
1st Aug 2025683 PMAQI
1st Aug 2025644 PMAQI
1st Aug 2025595 PMAQI
1st Aug 2025606 PMAQI
1st Aug 2025607 PMAQI
1st Aug 2025588 PMAQI
1st Aug 2025619 PMAQI
1st Aug 20256310 PMAQI
1st Aug 20256211 PMAQI
2nd Aug 20256012 AMAQI
2nd Aug 2025561 AMAQI
2nd Aug 2025562 AMAQI
2nd Aug 2025583 AMAQI
2nd Aug 2025594 AMAQI

29°C23/35°C

2nd Aug 2025595 AMAQI
2nd Aug 2025596 AMAQI
2nd Aug 2025587 AMAQI
2nd Aug 2025778 AMAQI
2nd Aug 2025759 AMAQI
2nd Aug 20257410 AMAQI
2nd Aug 20257611 AMAQI
2nd Aug 20257212 PMAQI
2nd Aug 2025701 PMAQI
2nd Aug 2025732 PMAQI
2nd Aug 2025713 PMAQI
2nd Aug 2025784 PMAQI
2nd Aug 2025665 PMAQI
2nd Aug 2025636 PMAQI
2nd Aug 2025587 PMAQI
2nd Aug 2025598 PMAQI
2nd Aug 2025619 PMAQI
2nd Aug 20256410 PMAQI
2nd Aug 20256811 PMAQI
3rd Aug 20256512 AMAQI
3rd Aug 2025581 AMAQI
3rd Aug 2025582 AMAQI
3rd Aug 2025603 AMAQI
3rd Aug 2025614 AMAQI

30°C23/36°C

3rd Aug 2025615 AMAQI
3rd Aug 2025626 AMAQI
3rd Aug 2025617 AMAQI
3rd Aug 2025708 AMAQI
3rd Aug 2025709 AMAQI
3rd Aug 20257110 AMAQI
3rd Aug 20256711 AMAQI
3rd Aug 20256412 PMAQI
3rd Aug 2025681 PMAQI
3rd Aug 2025622 PMAQI
3rd Aug 2025663 PMAQI
3rd Aug 2025604 PMAQI
3rd Aug 2025655 PMAQI
3rd Aug 2025616 PMAQI
3rd Aug 2025587 PMAQI
3rd Aug 2025568 PMAQI
3rd Aug 2025599 PMAQI
3rd Aug 20256210 PMAQI
3rd Aug 20256611 PMAQI
4th Aug 20256412 AMAQI
4th Aug 2025601 AMAQI
4th Aug 2025602 AMAQI
4th Aug 2025613 AMAQI
4th Aug 2025624 AMAQI

30°C25/38°C

4th Aug 2025625 AMAQI
4th Aug 2025626 AMAQI
4th Aug 2025637 AMAQI
4th Aug 2025648 AMAQI
4th Aug 2025679 AMAQI
4th Aug 20257210 AMAQI
4th Aug 20257011 AMAQI
4th Aug 20257412 PMAQI
4th Aug 2025761 PMAQI
4th Aug 2025702 PMAQI
4th Aug 2025713 PMAQI
4th Aug 2025674 PMAQI
4th Aug 2025585 PMAQI
4th Aug 2025596 PMAQI
4th Aug 2025617 PMAQI
4th Aug 2025628 PMAQI
4th Aug 2025649 PMAQI
4th Aug 20256410 PMAQI
4th Aug 20256411 PMAQI
5th Aug 20256912 AMAQI

--°C/°C

5 AM
12 PM
7 PM
12 AM
4 AM

--°C/°C

Day time
Avg. Highest Time
5 AM - 1 PM

59AQI

9 hours / Day
270 hours / Month
Avg. Lowest Time
2 PM - 7 PM

53AQI

6 hours / Day
180 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 1 PM (Avg. 59), while the lowest AQI was between 2 PM to 7 PM (Avg. 53).
Night time
Avg. Highest Time
12 AM - 11 PM

57AQI

9 hours / Day
270 hours / Month
Avg. Lowest Time
12 AM - 11 PM

57AQI

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. 57), while the lowest AQI was between 12 AM to 11 PM (Avg. 57).

2025 Days Vs Air Quality

Institute Of Forestry, Huaihua, Hunan, China

2025

12%

25

63%

135

19%

41

7%

14

Total number of days with different AQI categories in last 216 days in 2025 (149 days remaining)

Good
25 Days
Moderate
135 Days
Poor
41 Days
Unhealthy
14 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 12%

Health Risk Level:

Extreme

In 2025, 12% of 216 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

Institute Of Forestry, Huaihua, 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
160AQI
2nd January 2025
153AQI
3rd January 2025
170AQI
4th January 2025
181AQI
5th January 2025
173AQI
6th January 2025
161AQI
7th January 2025
148AQI
8th January 2025
121AQI
9th January 2025
111AQI
10th January 2025
130AQI
11th January 2025
120AQI
12th January 2025
124AQI
13th January 2025
143AQI
14th January 2025
139AQI
15th January 2025
134AQI
16th January 2025
134AQI
17th January 2025
141AQI
18th January 2025
156AQI
19th January 2025
148AQI
20th January 2025
157AQI
21st January 2025
162AQI
22nd January 2025
174AQI
23rd January 2025
187AQI
24th January 2025
160AQI
25th January 2025
95AQI
26th January 2025
95AQI
27th January 2025
101AQI
28th January 2025
126AQI
29th January 2025
179AQI
30th January 2025
156AQI
31st January 2025
115AQI
1st February 2025
92AQI
2nd February 2025
79AQI
3rd February 2025
92AQI
4th February 2025
91AQI
5th February 2025
116AQI
6th February 2025
111AQI
7th February 2025
95AQI
8th February 2025
85AQI
9th February 2025
89AQI
10th February 2025
86AQI
11th February 2025
90AQI
12th February 2025
114AQI
13th February 2025
98AQI
14th February 2025
96AQI
15th February 2025
96AQI
16th February 2025
98AQI
17th February 2025
79AQI
18th February 2025
81AQI
19th February 2025
79AQI
20th February 2025
82AQI
21st February 2025
130AQI
22nd February 2025
63AQI
23rd February 2025
115AQI
24th February 2025
123AQI
25th February 2025
91AQI
26th February 2025
93AQI
27th February 2025
74AQI
28th February 2025
82AQI
1st March 2025
71AQI
2nd March 2025
73AQI
3rd March 2025
46AQI
4th March 2025
58AQI
5th March 2025
51AQI
6th March 2025
70AQI
7th March 2025
62AQI
8th March 2025
76AQI
9th March 2025
79AQI
10th March 2025
79AQI
11th March 2025
74AQI
12th March 2025
86AQI
13th March 2025
89AQI
14th March 2025
63AQI
15th March 2025
64AQI
16th March 2025
70AQI
17th March 2025
75AQI
18th March 2025
77AQI
19th March 2025
76AQI
20th March 2025
78AQI
21st March 2025
85AQI
22nd March 2025
106AQI
23rd March 2025
112AQI
24th March 2025
114AQI
25th March 2025
121AQI
26th March 2025
120AQI
27th March 2025
123AQI
28th March 2025
88AQI
29th March 2025
83AQI
30th March 2025
70AQI
31st March 2025
76AQI
1st April 2025
77AQI
2nd April 2025
84AQI
3rd April 2025
94AQI
4th April 2025
118AQI
5th April 2025
114AQI
6th April 2025
122AQI
7th April 2025
115AQI
8th April 2025
117AQI
9th April 2025
119AQI
10th April 2025
106AQI
11th April 2025
107AQI
12th April 2025
92AQI
13th April 2025
142AQI
14th April 2025
128AQI
15th April 2025
130AQI
16th April 2025
123AQI
17th April 2025
119AQI
18th April 2025
108AQI
19th April 2025
74AQI
20th April 2025
85AQI
21st April 2025
74AQI
22nd April 2025
75AQI
23rd April 2025
79AQI
24th April 2025
68AQI
25th April 2025
75AQI
26th April 2025
75AQI
27th April 2025
67AQI
28th April 2025
80AQI
29th April 2025
80AQI
30th April 2025
71AQI
1st May 2025
82AQI
2nd May 2025
88AQI
3rd May 2025
90AQI
4th May 2025
86AQI
5th May 2025
78AQI
6th May 2025
91AQI
7th May 2025
92AQI
8th May 2025
76AQI
9th May 2025
71AQI
10th May 2025
69AQI
11th May 2025
71AQI
12th May 2025
81AQI
13th May 2025
81AQI
14th May 2025
100AQI
15th May 2025
90AQI
16th May 2025
80AQI
17th May 2025
86AQI
18th May 2025
79AQI
19th May 2025
82AQI
20th May 2025
68AQI
21st May 2025
67AQI
22nd May 2025
59AQI
23rd May 2025
71AQI
24th May 2025
84AQI
25th May 2025
87AQI
26th May 2025
76AQI
27th May 2025
72AQI
28th May 2025
58AQI
29th May 2025
63AQI
30th May 2025
59AQI
31st May 2025
56AQI
1st June 2025
50AQI
2nd June 2025
58AQI
3rd June 2025
66AQI
4th June 2025
76AQI
5th June 2025
71AQI
6th June 2025
72AQI
7th June 2025
65AQI
8th June 2025
63AQI
9th June 2025
66AQI
10th June 2025
69AQI
11th June 2025
71AQI
12th June 2025
67AQI
13th June 2025
64AQI
14th June 2025
59AQI
15th June 2025
64AQI
16th June 2025
62AQI
17th June 2025
55AQI
18th June 2025
49AQI
19th June 2025
48AQI
20th June 2025
46AQI
21st June 2025
45AQI
22nd June 2025
36AQI
23rd June 2025
34AQI
24th June 2025
39AQI
25th June 2025
46AQI
26th June 2025
48AQI
27th June 2025
48AQI
28th June 2025
49AQI
29th June 2025
46AQI
30th June 2025
46AQI
1st July 2025
47AQI
2nd July 2025
40AQI
3rd July 2025
42AQI
4th July 2025
45AQI
5th July 2025
45AQI
6th July 2025
56AQI
7th July 2025
56AQI
8th July 2025
57AQI
9th July 2025
62AQI
10th July 2025
55AQI
11th July 2025
59AQI
12th July 2025
61AQI
13th July 2025
61AQI
14th July 2025
61AQI
15th July 2025
56AQI
16th July 2025
59AQI
17th July 2025
60AQI
18th July 2025
58AQI
19th July 2025
61AQI
20th July 2025
59AQI
21st July 2025
45AQI
22nd July 2025
42AQI
23rd July 2025
43AQI
24th July 2025
48AQI
25th July 2025
49AQI
26th July 2025
52AQI
27th July 2025
56AQI
28th July 2025
53AQI
29th July 2025
57AQI
30th July 2025
56AQI
31st July 2025
57AQI
1st August 2025
61AQI
2nd August 2025
64AQI
3rd August 2025
62AQI

144AQI

94AQI

81AQI

97AQI

77AQI

56AQI

53AQI

62AQI

No. of days

Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days

202586AQI

2
15
14
22
6
1
24
6
16
14
31
14
16
10
21
3
25
135
41
14

Highest AQI recorded in

January

144AQI

Lowest AQI recorded in

July

53AQI

202473AQI

3
12
13
3
9
15
4
1
2
8
2
1
5
7
20
10
28
3
13
18
4
25
6
21
4
4
14
12
10
18
3
95
143
53
7

Highest AQI recorded in

December

120AQI

Lowest AQI recorded in

April

17AQI

202367AQI

1
7
10
3
6
10
12
8
15
8
9
17
4
9
21
1
17
13
29
2
22
9
17
13
15
16
4
20
2
6
15
6
4
143
158
43
7

Highest AQI recorded in

January

113AQI

Lowest AQI recorded in

July

38AQI

202198AQI

5
22
4
2
17
7
2
7
9
1
9
31
30
6

Highest AQI recorded in

January

126AQI

Lowest AQI recorded in

March

58AQI

202070AQI

3
6
3
1
4
10
7
3
14
1
21
9
21
10
23
8
21
8
1
10
15
6
6
11
11
2
7
15
9
112
98
44
12

Highest AQI recorded in

December

128AQI

Lowest AQI recorded in

July

44AQI

Most & Least Polluted Years Over the Last 5 Years

Most Polluted Year Recorded
2021(Avg.)
98AQI
Least Polluted Year Recorded
2023(Avg.)
67AQI

Institute Of Forestry's annual 2025 AQI (86) shows an average percentage change of 14.4% (worsened AQI) compared to previous years: 2020 (70), 2021 (98), 2023 (67), 2024 (73).