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HistoryAQIPM2.5PM10COSO2NO2O3

City Accounting Office, Chenzhou, 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+

October Air Quality Analysis

City Accounting Office, Chenzhou, Hunan, China

2021
2022
2023
2024
2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
19th Oct 2022
161AQI
Lowest AQI recorded on
16th Oct 2021
23AQI

Same Day Analysis (4th October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 79 of Moderate air quality, showing improvement over 2024 and 2023 on the same day.

Download 2024 Annual Data

World Air Quality Report

Globe

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

City Accounting Office, Chenzhou, Hunan, China

AQI
Day
Night
.

6 AM4th Oct 2025

6 PM

5 AM5th Oct 2025

Day time
Avg. Highest Time
2PM4th Oct

118AQI

Avg. Lowest Time
7AM4th Oct

83AQI

Night time
Avg. Highest Time
11PM4th Oct

119AQI

Avg. Lowest Time
8PM4th Oct

84AQI

In the last 24 hours,

City Accounting Office's AQI reached its highest point of 119 at 11 PM during the Night, while the lowest point, 83, was recorded at 7 AM during the Day between 4th Oct and 5th Oct 2025.

Day & Night AQI Trend : Sep - Oct 2025

City Accounting Office, Chenzhou, Hunan, China

SepOct
05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th
Day
Night
5th Sep 2025586 AMAQI
5th Sep 2025587 AMAQI
5th Sep 2025708 AMAQI
5th Sep 2025709 AMAQI
5th Sep 20257410 AMAQI
5th Sep 20256511 AMAQI
5th Sep 20256212 PMAQI
5th Sep 2025601 PMAQI
5th Sep 2025642 PMAQI
5th Sep 2025643 PMAQI
5th Sep 2025614 PMAQI
5th Sep 2025635 PMAQI
5th Sep 2025646 PMAQI
5th Sep 2025637 PMAQI
5th Sep 2025658 PMAQI
5th Sep 2025679 PMAQI
5th Sep 20256910 PMAQI
5th Sep 20256511 PMAQI
6th Sep 20256612 AMAQI
6th Sep 2025661 AMAQI
6th Sep 2025632 AMAQI
6th Sep 2025633 AMAQI
6th Sep 2025644 AMAQI
6th Sep 2025635 AMAQI

29°C24/36°C

6th Sep 2025636 AMAQI
6th Sep 2025637 AMAQI
6th Sep 2025648 AMAQI
6th Sep 2025779 AMAQI
6th Sep 20257910 AMAQI
6th Sep 20257411 AMAQI
6th Sep 20256912 PMAQI
6th Sep 2025671 PMAQI
6th Sep 2025662 PMAQI
6th Sep 2025663 PMAQI
6th Sep 2025644 PMAQI
6th Sep 2025605 PMAQI
6th Sep 2025626 PMAQI
6th Sep 2025687 PMAQI
6th Sep 2025688 PMAQI
6th Sep 2025699 PMAQI
6th Sep 20256910 PMAQI
6th Sep 20256811 PMAQI
7th Sep 20256912 AMAQI
7th Sep 2025631 AMAQI
7th Sep 2025622 AMAQI
7th Sep 2025643 AMAQI
7th Sep 2025654 AMAQI
7th Sep 2025645 AMAQI

29°C25/36°C

7th Sep 2025656 AMAQI
7th Sep 2025667 AMAQI
7th Sep 2025748 AMAQI
7th Sep 2025799 AMAQI
7th Sep 20257610 AMAQI
7th Sep 20256811 AMAQI
7th Sep 20257812 PMAQI
7th Sep 2025801 PMAQI
7th Sep 2025762 PMAQI
7th Sep 2025763 PMAQI
7th Sep 2025724 PMAQI
7th Sep 2025735 PMAQI
7th Sep 2025696 PMAQI
7th Sep 2025607 PMAQI
7th Sep 2025608 PMAQI
7th Sep 2025649 PMAQI
7th Sep 20256310 PMAQI
7th Sep 20256611 PMAQI
8th Sep 20256112 AMAQI
8th Sep 2025611 AMAQI
8th Sep 2025622 AMAQI
8th Sep 2025653 AMAQI
8th Sep 2025674 AMAQI
8th Sep 2025675 AMAQI

27°C24/34°C

8th Sep 2025666 AMAQI
8th Sep 2025667 AMAQI
8th Sep 2025608 AMAQI
8th Sep 2025769 AMAQI
8th Sep 20256710 AMAQI
8th Sep 20256611 AMAQI
8th Sep 20256812 PMAQI
8th Sep 2025641 PMAQI
8th Sep 2025462 PMAQI
8th Sep 2025343 PMAQI
8th Sep 2025344 PMAQI
8th Sep 2025265 PMAQI
8th Sep 2025306 PMAQI
8th Sep 2025487 PMAQI
8th Sep 2025538 PMAQI
8th Sep 2025539 PMAQI
8th Sep 20255310 PMAQI
8th Sep 20255411 PMAQI
9th Sep 20255612 AMAQI
9th Sep 2025621 AMAQI
9th Sep 2025632 AMAQI
9th Sep 2025623 AMAQI
9th Sep 2025604 AMAQI
9th Sep 2025625 AMAQI

26°C23/33°C

9th Sep 2025636 AMAQI
9th Sep 2025627 AMAQI
9th Sep 2025248 AMAQI
9th Sep 2025249 AMAQI
9th Sep 20253010 AMAQI
9th Sep 20253211 AMAQI
9th Sep 20252712 PMAQI
9th Sep 2025341 PMAQI
9th Sep 2025272 PMAQI
9th Sep 2025273 PMAQI
9th Sep 2025314 PMAQI
9th Sep 2025315 PMAQI
9th Sep 2025356 PMAQI
9th Sep 2025477 PMAQI
9th Sep 2025548 PMAQI
9th Sep 2025529 PMAQI
9th Sep 20255410 PMAQI
9th Sep 20255211 PMAQI
10th Sep 20255812 AMAQI
10th Sep 2025631 AMAQI
10th Sep 2025612 AMAQI
10th Sep 2025593 AMAQI
10th Sep 2025574 AMAQI
10th Sep 2025575 AMAQI

26°C22/31°C

10th Sep 2025566 AMAQI
10th Sep 2025587 AMAQI
10th Sep 2025428 AMAQI
10th Sep 2025479 AMAQI
10th Sep 20253810 AMAQI
10th Sep 20254011 AMAQI
10th Sep 20253312 PMAQI
10th Sep 2025381 PMAQI
10th Sep 2025342 PMAQI
10th Sep 2025373 PMAQI
10th Sep 2025234 PMAQI
10th Sep 2025335 PMAQI
10th Sep 2025276 PMAQI
10th Sep 2025447 PMAQI
10th Sep 2025518 PMAQI
10th Sep 2025549 PMAQI
10th Sep 20255410 PMAQI
10th Sep 20255611 PMAQI
11th Sep 20255712 AMAQI
11th Sep 2025591 AMAQI
11th Sep 2025582 AMAQI
11th Sep 2025573 AMAQI
11th Sep 2025564 AMAQI
11th Sep 2025565 AMAQI

28°C23/34°C

11th Sep 2025566 AMAQI
11th Sep 2025567 AMAQI
11th Sep 2025408 AMAQI
11th Sep 2025429 AMAQI
11th Sep 20253410 AMAQI
11th Sep 20253411 AMAQI
11th Sep 20253212 PMAQI
11th Sep 2025321 PMAQI
11th Sep 2025342 PMAQI
11th Sep 2025303 PMAQI
11th Sep 2025314 PMAQI
11th Sep 2025285 PMAQI
11th Sep 2025296 PMAQI
11th Sep 2025417 PMAQI
11th Sep 2025548 PMAQI
11th Sep 2025539 PMAQI
11th Sep 20255310 PMAQI
11th Sep 20255411 PMAQI
12th Sep 20255612 AMAQI
12th Sep 2025581 AMAQI
12th Sep 2025572 AMAQI
12th Sep 2025553 AMAQI
12th Sep 2025554 AMAQI
12th Sep 2025545 AMAQI

28°C24/34°C

12th Sep 2025556 AMAQI
12th Sep 2025547 AMAQI
12th Sep 2025528 AMAQI
12th Sep 2025569 AMAQI
12th Sep 20255210 AMAQI
12th Sep 20254611 AMAQI
12th Sep 20254412 PMAQI
12th Sep 2025401 PMAQI
12th Sep 2025402 PMAQI
12th Sep 2025363 PMAQI
12th Sep 2025384 PMAQI
12th Sep 2025385 PMAQI
12th Sep 2025336 PMAQI
12th Sep 2025467 PMAQI
12th Sep 2025528 PMAQI
12th Sep 2025559 PMAQI
12th Sep 20255510 PMAQI
12th Sep 20255811 PMAQI
13th Sep 20255712 AMAQI
13th Sep 2025561 AMAQI
13th Sep 2025562 AMAQI
13th Sep 2025543 AMAQI
13th Sep 2025544 AMAQI
13th Sep 2025545 AMAQI

28°C24/34°C

13th Sep 2025546 AMAQI
13th Sep 2025547 AMAQI
13th Sep 2025508 AMAQI
13th Sep 2025539 AMAQI
13th Sep 20255410 AMAQI
13th Sep 20255211 AMAQI
13th Sep 20255412 PMAQI
13th Sep 2025481 PMAQI
13th Sep 2025512 PMAQI
13th Sep 2025453 PMAQI
13th Sep 2025414 PMAQI
13th Sep 2025445 PMAQI
13th Sep 2025536 PMAQI
13th Sep 2025547 PMAQI
13th Sep 2025588 PMAQI
13th Sep 2025629 PMAQI
13th Sep 20256810 PMAQI
13th Sep 20256011 PMAQI
14th Sep 20255812 AMAQI
14th Sep 2025551 AMAQI
14th Sep 2025552 AMAQI
14th Sep 2025543 AMAQI
14th Sep 2025544 AMAQI
14th Sep 2025545 AMAQI

29°C24/35°C

14th Sep 2025546 AMAQI
14th Sep 2025557 AMAQI
14th Sep 2025648 AMAQI
14th Sep 2025679 AMAQI
14th Sep 20256710 AMAQI
14th Sep 20256011 AMAQI
14th Sep 20255612 PMAQI
14th Sep 2025561 PMAQI
14th Sep 2025542 PMAQI
14th Sep 2025513 PMAQI
14th Sep 2025524 PMAQI
14th Sep 2025515 PMAQI
14th Sep 2025546 PMAQI
14th Sep 2025557 PMAQI
14th Sep 2025568 PMAQI
14th Sep 2025629 PMAQI
14th Sep 20256410 PMAQI
14th Sep 20256711 PMAQI
15th Sep 20256012 AMAQI
15th Sep 2025581 AMAQI
15th Sep 2025552 AMAQI
15th Sep 2025563 AMAQI
15th Sep 2025564 AMAQI
15th Sep 2025565 AMAQI

29°C24/35°C

15th Sep 2025566 AMAQI
15th Sep 2025567 AMAQI
15th Sep 2025798 AMAQI
15th Sep 2025709 AMAQI
15th Sep 20256810 AMAQI
15th Sep 20256411 AMAQI
15th Sep 20256012 PMAQI
15th Sep 2025581 PMAQI
15th Sep 2025582 PMAQI
15th Sep 2025523 PMAQI
15th Sep 2025534 PMAQI
15th Sep 2025525 PMAQI
15th Sep 2025546 PMAQI
15th Sep 2025597 PMAQI
15th Sep 2025598 PMAQI
15th Sep 2025649 PMAQI
15th Sep 20256210 PMAQI
15th Sep 20256111 PMAQI
16th Sep 20256212 AMAQI
16th Sep 2025561 AMAQI
16th Sep 2025562 AMAQI
16th Sep 2025573 AMAQI
16th Sep 2025584 AMAQI
16th Sep 2025585 AMAQI

29°C24/36°C

16th Sep 2025586 AMAQI
16th Sep 2025587 AMAQI
16th Sep 2025578 AMAQI
16th Sep 2025609 AMAQI
16th Sep 20255410 AMAQI
16th Sep 20253711 AMAQI
16th Sep 20252912 PMAQI
16th Sep 2025261 PMAQI
16th Sep 2025222 PMAQI
16th Sep 2025183 PMAQI
16th Sep 2025244 PMAQI
16th Sep 2025205 PMAQI
16th Sep 2025196 PMAQI
16th Sep 2025367 PMAQI
16th Sep 2025508 PMAQI
16th Sep 2025539 PMAQI
16th Sep 20255410 PMAQI
16th Sep 20255411 PMAQI
17th Sep 20255512 AMAQI
17th Sep 2025581 AMAQI
17th Sep 2025582 AMAQI
17th Sep 2025573 AMAQI
17th Sep 2025554 AMAQI
17th Sep 2025565 AMAQI

29°C24/35°C

17th Sep 2025566 AMAQI
17th Sep 2025557 AMAQI
17th Sep 2025578 AMAQI
17th Sep 2025539 AMAQI
17th Sep 20255810 AMAQI
17th Sep 20255711 AMAQI
17th Sep 20254412 PMAQI
17th Sep 2025511 PMAQI
17th Sep 2025432 PMAQI
17th Sep 2025423 PMAQI
17th Sep 2025384 PMAQI
17th Sep 2025375 PMAQI
17th Sep 2025346 PMAQI
17th Sep 2025467 PMAQI
17th Sep 2025548 PMAQI
17th Sep 2025539 PMAQI
17th Sep 20255210 PMAQI
17th Sep 20255611 PMAQI
18th Sep 20255512 AMAQI
18th Sep 2025571 AMAQI
18th Sep 2025562 AMAQI
18th Sep 2025563 AMAQI
18th Sep 2025554 AMAQI
18th Sep 2025555 AMAQI

28°C24/36°C

18th Sep 2025556 AMAQI
18th Sep 2025557 AMAQI
18th Sep 2025618 AMAQI
18th Sep 2025619 AMAQI
18th Sep 20256710 AMAQI
18th Sep 20257411 AMAQI
18th Sep 20257712 PMAQI
18th Sep 2025961 PMAQI
18th Sep 20251082 PMAQI
18th Sep 20251133 PMAQI
18th Sep 2025994 PMAQI
18th Sep 20251045 PMAQI
18th Sep 2025946 PMAQI
18th Sep 2025907 PMAQI
18th Sep 2025768 PMAQI
18th Sep 2025769 PMAQI
18th Sep 20257610 PMAQI
18th Sep 20257211 PMAQI
19th Sep 20257412 AMAQI
19th Sep 2025561 AMAQI
19th Sep 2025562 AMAQI
19th Sep 2025593 AMAQI
19th Sep 2025634 AMAQI
19th Sep 2025625 AMAQI

25°C22/29°C

19th Sep 2025626 AMAQI
19th Sep 2025637 AMAQI
19th Sep 2025688 AMAQI
19th Sep 2025699 AMAQI
19th Sep 20257210 AMAQI
19th Sep 20257611 AMAQI
19th Sep 20257112 PMAQI
19th Sep 2025731 PMAQI
19th Sep 2025732 PMAQI
19th Sep 2025823 PMAQI
19th Sep 2025814 PMAQI
19th Sep 2025885 PMAQI
19th Sep 2025956 PMAQI
19th Sep 2025907 PMAQI
19th Sep 2025788 PMAQI
19th Sep 2025849 PMAQI
19th Sep 20258210 PMAQI
19th Sep 20258211 PMAQI
20th Sep 20258312 AMAQI
20th Sep 2025611 AMAQI
20th Sep 2025612 AMAQI
20th Sep 2025623 AMAQI
20th Sep 2025644 AMAQI
20th Sep 2025645 AMAQI

23°C20/26°C

20th Sep 2025646 AMAQI
20th Sep 2025647 AMAQI
20th Sep 2025408 AMAQI
20th Sep 2025339 AMAQI
20th Sep 20253010 AMAQI
20th Sep 20253211 AMAQI
20th Sep 20252412 PMAQI
20th Sep 2025211 PMAQI
20th Sep 2025292 PMAQI
20th Sep 2025373 PMAQI
20th Sep 2025324 PMAQI
20th Sep 2025275 PMAQI
20th Sep 2025286 PMAQI
20th Sep 2025457 PMAQI
20th Sep 2025568 PMAQI
20th Sep 2025579 PMAQI
20th Sep 20255610 PMAQI
20th Sep 20255411 PMAQI
21st Sep 20255612 AMAQI
21st Sep 2025621 AMAQI
21st Sep 2025632 AMAQI
21st Sep 2025613 AMAQI
21st Sep 2025584 AMAQI
21st Sep 2025595 AMAQI

17°C17/18°C

21st Sep 2025596 AMAQI
21st Sep 2025587 AMAQI
21st Sep 2025428 AMAQI
21st Sep 2025439 AMAQI
21st Sep 20253310 AMAQI
21st Sep 20253211 AMAQI
21st Sep 20253512 PMAQI
21st Sep 2025401 PMAQI
21st Sep 2025522 PMAQI
21st Sep 2025493 PMAQI
21st Sep 2025424 PMAQI
21st Sep 2025545 PMAQI
21st Sep 2025606 PMAQI
21st Sep 2025587 PMAQI
21st Sep 2025568 PMAQI
21st Sep 2025569 PMAQI
21st Sep 20255610 PMAQI
21st Sep 20255611 PMAQI
22nd Sep 20255412 AMAQI
22nd Sep 2025581 AMAQI
22nd Sep 2025592 AMAQI
22nd Sep 2025583 AMAQI
22nd Sep 2025564 AMAQI
22nd Sep 2025565 AMAQI

19°C17/21°C

22nd Sep 2025566 AMAQI
22nd Sep 2025567 AMAQI
22nd Sep 2025288 AMAQI
22nd Sep 2025339 AMAQI
22nd Sep 20253110 AMAQI
22nd Sep 20253111 AMAQI
22nd Sep 20252512 PMAQI
22nd Sep 2025281 PMAQI
22nd Sep 2025422 PMAQI
22nd Sep 2025553 PMAQI
22nd Sep 2025474 PMAQI
22nd Sep 2025325 PMAQI
22nd Sep 2025296 PMAQI
22nd Sep 2025397 PMAQI
22nd Sep 2025548 PMAQI
22nd Sep 2025559 PMAQI
22nd Sep 20255410 PMAQI
22nd Sep 20255511 PMAQI
23rd Sep 20255412 AMAQI
23rd Sep 2025571 AMAQI
23rd Sep 2025562 AMAQI
23rd Sep 2025553 AMAQI
23rd Sep 2025534 AMAQI
23rd Sep 2025545 AMAQI

20°C18/23°C

23rd Sep 2025536 AMAQI
23rd Sep 2025537 AMAQI
23rd Sep 2025388 AMAQI
23rd Sep 2025269 AMAQI
23rd Sep 20253410 AMAQI
23rd Sep 20254111 AMAQI
23rd Sep 20253812 PMAQI
23rd Sep 2025401 PMAQI
23rd Sep 2025562 PMAQI
23rd Sep 2025633 PMAQI
23rd Sep 2025654 PMAQI
23rd Sep 2025775 PMAQI
23rd Sep 2025836 PMAQI
23rd Sep 2025737 PMAQI
23rd Sep 2025658 PMAQI
23rd Sep 2025629 PMAQI
23rd Sep 20256210 PMAQI
23rd Sep 20256211 PMAQI
24th Sep 20255612 AMAQI
24th Sep 2025551 AMAQI
24th Sep 2025542 AMAQI
24th Sep 2025543 AMAQI
24th Sep 2025534 AMAQI
24th Sep 2025535 AMAQI

19°C18/20°C

24th Sep 2025536 AMAQI
24th Sep 2025537 AMAQI
24th Sep 2025328 AMAQI
24th Sep 2025179 AMAQI
24th Sep 20252010 AMAQI
24th Sep 20251811 AMAQI
24th Sep 20251812 PMAQI
24th Sep 2025191 PMAQI
24th Sep 2025192 PMAQI
24th Sep 2025183 PMAQI
24th Sep 2025184 PMAQI
24th Sep 2025205 PMAQI
24th Sep 2025166 PMAQI
24th Sep 2025267 PMAQI
24th Sep 2025438 PMAQI
24th Sep 2025499 PMAQI
24th Sep 20254210 PMAQI
24th Sep 20254011 PMAQI
25th Sep 20253912 AMAQI
25th Sep 2025541 AMAQI
25th Sep 2025542 AMAQI
25th Sep 2025523 AMAQI
25th Sep 2025514 AMAQI
25th Sep 2025505 AMAQI

18°C18/19°C

25th Sep 2025496 AMAQI
25th Sep 2025497 AMAQI
25th Sep 2025258 AMAQI
25th Sep 2025229 AMAQI
25th Sep 20252910 AMAQI
25th Sep 20252911 AMAQI
25th Sep 20253312 PMAQI
25th Sep 2025351 PMAQI
25th Sep 2025622 PMAQI
25th Sep 2025783 PMAQI
25th Sep 2025874 PMAQI
25th Sep 2025875 PMAQI
25th Sep 2025876 PMAQI
25th Sep 2025687 PMAQI
25th Sep 2025588 PMAQI
25th Sep 2025569 PMAQI
25th Sep 20255510 PMAQI
25th Sep 20255111 PMAQI
26th Sep 20254512 AMAQI
26th Sep 2025471 AMAQI
26th Sep 2025482 AMAQI
26th Sep 2025393 AMAQI
26th Sep 2025324 AMAQI
26th Sep 2025265 AMAQI

21°C18/23°C

26th Sep 2025256 AMAQI
26th Sep 2025257 AMAQI
26th Sep 2025118 AMAQI
26th Sep 2025149 AMAQI
26th Sep 20252210 AMAQI
26th Sep 20252311 AMAQI
26th Sep 20251612 PMAQI
26th Sep 2025291 PMAQI
26th Sep 2025492 PMAQI
26th Sep 2025583 PMAQI
26th Sep 2025594 PMAQI
26th Sep 2025585 PMAQI
26th Sep 2025586 PMAQI
26th Sep 2025637 PMAQI
26th Sep 2025698 PMAQI
26th Sep 2025769 PMAQI
26th Sep 20257610 PMAQI
26th Sep 20257511 PMAQI
27th Sep 20257312 AMAQI
27th Sep 2025681 AMAQI
27th Sep 2025642 AMAQI
27th Sep 2025543 AMAQI
27th Sep 2025424 AMAQI
27th Sep 2025375 AMAQI

23°C19/28°C

27th Sep 2025306 AMAQI
27th Sep 2025227 AMAQI
27th Sep 2025258 AMAQI
27th Sep 2025339 AMAQI
27th Sep 20253210 AMAQI
27th Sep 20253111 AMAQI
27th Sep 20253712 PMAQI
27th Sep 2025351 PMAQI
27th Sep 2025372 PMAQI
27th Sep 2025333 PMAQI
27th Sep 2025344 PMAQI
27th Sep 2025325 PMAQI
27th Sep 2025356 PMAQI
27th Sep 2025527 PMAQI
27th Sep 2025578 PMAQI
27th Sep 2025579 PMAQI
27th Sep 20255210 PMAQI
27th Sep 20256011 PMAQI
28th Sep 20256412 AMAQI
28th Sep 2025651 AMAQI
28th Sep 2025672 AMAQI
28th Sep 2025683 AMAQI
28th Sep 2025654 AMAQI
28th Sep 2025675 AMAQI

24°C21/29°C

28th Sep 2025676 AMAQI
28th Sep 2025657 AMAQI
28th Sep 2025688 AMAQI
28th Sep 2025749 AMAQI
28th Sep 20258210 AMAQI
28th Sep 20258211 AMAQI
28th Sep 20257712 PMAQI
28th Sep 2025801 PMAQI
28th Sep 2025882 PMAQI
28th Sep 2025853 PMAQI
28th Sep 2025774 PMAQI
28th Sep 2025755 PMAQI
28th Sep 2025816 PMAQI
28th Sep 2025857 PMAQI
28th Sep 2025848 PMAQI
28th Sep 2025869 PMAQI
28th Sep 20258410 PMAQI
28th Sep 20257911 PMAQI
29th Sep 20257412 AMAQI
29th Sep 2025771 AMAQI
29th Sep 2025802 AMAQI
29th Sep 2025743 AMAQI
29th Sep 2025734 AMAQI
29th Sep 2025805 AMAQI

27°C22/33°C

29th Sep 2025806 AMAQI
29th Sep 2025797 AMAQI
29th Sep 2025838 AMAQI
29th Sep 20251149 AMAQI
29th Sep 20259310 AMAQI
29th Sep 20258211 AMAQI
29th Sep 20257212 PMAQI
29th Sep 2025661 PMAQI
29th Sep 2025702 PMAQI
29th Sep 2025703 PMAQI
29th Sep 2025704 PMAQI
29th Sep 2025745 PMAQI
29th Sep 2025806 PMAQI
29th Sep 2025867 PMAQI
29th Sep 2025768 PMAQI
29th Sep 2025879 PMAQI
29th Sep 20258310 PMAQI
29th Sep 20258911 PMAQI
30th Sep 20258612 AMAQI
30th Sep 2025791 AMAQI
30th Sep 2025842 AMAQI
30th Sep 2025813 AMAQI
30th Sep 2025994 AMAQI
30th Sep 20251005 AMAQI

27°C23/33°C

30th Sep 2025966 AMAQI
30th Sep 20251087 AMAQI
30th Sep 20251138 AMAQI
30th Sep 20251209 AMAQI
30th Sep 202513710 AMAQI
30th Sep 202513811 AMAQI
30th Sep 202511712 PMAQI
30th Sep 20251261 PMAQI
30th Sep 20251152 PMAQI
30th Sep 2025893 PMAQI
30th Sep 2025864 PMAQI
30th Sep 2025835 PMAQI
30th Sep 2025826 PMAQI
30th Sep 2025787 PMAQI
30th Sep 2025778 PMAQI
30th Sep 2025999 PMAQI
30th Sep 20259310 PMAQI
30th Sep 20259311 PMAQI
1st Oct 202510712 AMAQI
1st Oct 20251001 AMAQI
1st Oct 20251042 AMAQI
1st Oct 20251113 AMAQI
1st Oct 20251084 AMAQI
1st Oct 20251065 AMAQI

27°C23/33°C

1st Oct 20251026 AMAQI
1st Oct 20251037 AMAQI
1st Oct 20251078 AMAQI
1st Oct 20251169 AMAQI
1st Oct 202511210 AMAQI
1st Oct 202513911 AMAQI
1st Oct 202515612 PMAQI
1st Oct 20251551 PMAQI
1st Oct 20251562 PMAQI
1st Oct 20251553 PMAQI
1st Oct 20251434 PMAQI
1st Oct 20251445 PMAQI
1st Oct 20251466 PMAQI
1st Oct 20251507 PMAQI
1st Oct 20251538 PMAQI
1st Oct 20251449 PMAQI
1st Oct 202514210 PMAQI
1st Oct 202514211 PMAQI
2nd Oct 202513012 AMAQI
2nd Oct 20251301 AMAQI
2nd Oct 20251242 AMAQI
2nd Oct 2025843 AMAQI
2nd Oct 2025804 AMAQI
2nd Oct 2025875 AMAQI

28°C23/35°C

2nd Oct 2025936 AMAQI
2nd Oct 2025927 AMAQI
2nd Oct 2025948 AMAQI
2nd Oct 2025979 AMAQI
2nd Oct 20259310 AMAQI
2nd Oct 20259611 AMAQI
2nd Oct 20258712 PMAQI
2nd Oct 2025801 PMAQI
2nd Oct 2025802 PMAQI
2nd Oct 2025723 PMAQI
2nd Oct 2025584 PMAQI
2nd Oct 2025535 PMAQI
2nd Oct 2025506 PMAQI
2nd Oct 2025407 PMAQI
2nd Oct 2025458 PMAQI
2nd Oct 2025559 PMAQI
2nd Oct 20256010 PMAQI
2nd Oct 20256211 PMAQI
3rd Oct 20256412 AMAQI
3rd Oct 2025641 AMAQI
3rd Oct 2025642 AMAQI
3rd Oct 2025583 AMAQI
3rd Oct 2025524 AMAQI
3rd Oct 2025525 AMAQI

28°C24/34°C

3rd Oct 2025566 AMAQI
3rd Oct 2025567 AMAQI
3rd Oct 2025638 AMAQI
3rd Oct 2025679 AMAQI
3rd Oct 20256110 AMAQI
3rd Oct 20256411 AMAQI
3rd Oct 20256912 PMAQI
3rd Oct 2025701 PMAQI
3rd Oct 2025672 PMAQI
3rd Oct 2025613 PMAQI
3rd Oct 2025584 PMAQI
3rd Oct 2025585 PMAQI
3rd Oct 2025586 PMAQI
3rd Oct 2025477 PMAQI
3rd Oct 2025628 PMAQI
3rd Oct 2025609 PMAQI
3rd Oct 20256610 PMAQI
3rd Oct 20256411 PMAQI
4th Oct 20257212 AMAQI
4th Oct 2025791 AMAQI
4th Oct 2025732 AMAQI
4th Oct 2025763 AMAQI
4th Oct 2025844 AMAQI
4th Oct 2025885 AMAQI

28°C23/35°C

4th Oct 2025936 AMAQI
4th Oct 2025837 AMAQI
4th Oct 2025888 AMAQI
4th Oct 2025969 AMAQI
4th Oct 202511310 AMAQI
4th Oct 202510911 AMAQI
4th Oct 202511212 PMAQI
4th Oct 20251151 PMAQI
4th Oct 20251182 PMAQI
4th Oct 20251183 PMAQI
4th Oct 20251114 PMAQI
4th Oct 20251065 PMAQI
4th Oct 2025976 PMAQI
4th Oct 20251027 PMAQI
4th Oct 2025848 PMAQI
4th Oct 2025959 PMAQI
4th Oct 202511110 PMAQI
4th Oct 202511911 PMAQI
5th Oct 202511012 AMAQI
5th Oct 20251181 AMAQI
5th Oct 20251002 AMAQI
5th Oct 2025933 AMAQI
5th Oct 2025854 AMAQI
5th Oct 2025915 AMAQI

29°C25/35°C

5th Oct 2025976 AMAQI
6 AM
5th Oct 2025957 AMAQI
5th Oct 20251078 AMAQI
5th Oct 20251089 AMAQI
12 PM
6 PM
12 AM
5 AM

--°C/°C

Day time
Avg. Highest Time
6 AM - 7 AM

63AQI

2 hours / Day
60 hours / Month
Avg. Lowest Time
12 PM

57AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 6 AM to 7 AM (Avg. 63), while the lowest AQI was between 12 PM to 12 PM (Avg. 57).
Night time
Avg. Highest Time
9 PM - 11 PM

67AQI

3 hours / Day
90 hours / Month
Avg. Lowest Time
3 AM - 7 PM

63AQI

4 hours / Day
120 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 9 PM to 11 PM (Avg. 67), while the lowest AQI was between 3 AM to 7 PM (Avg. 63).

2025 Days Vs Air Quality

City Accounting Office, Chenzhou, Hunan, China

2025

16%

45

61%

170

18%

50

4%

11

0.3%

1

Total number of days with different AQI categories in last 278 days in 2025 (87 days remaining)

Good
45 Days
Moderate
170 Days
Poor
50 Days
Unhealthy
11 Days
Severe
1 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 16%

Health Risk Level:

Extreme

In 2025, 16% of 278 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

City Accounting Office, Chenzhou, 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.

-1th undefined 2025
-1th undefined 2025
-1th undefined 2025
1st January 2025
160AQI
2nd January 2025
156AQI
3rd January 2025
174AQI
4th January 2025
172AQI
5th January 2025
184AQI
6th January 2025
169AQI
7th January 2025
167AQI
8th January 2025
166AQI
9th January 2025
143AQI
10th January 2025
127AQI
11th January 2025
123AQI
12th January 2025
122AQI
13th January 2025
111AQI
14th January 2025
102AQI
15th January 2025
143AQI
16th January 2025
109AQI
17th January 2025
135AQI
18th January 2025
118AQI
19th January 2025
129AQI
20th January 2025
129AQI
21st January 2025
135AQI
22nd January 2025
136AQI
23rd January 2025
151AQI
24th January 2025
206AQI
25th January 2025
112AQI
26th January 2025
106AQI
27th January 2025
92AQI
28th January 2025
115AQI
29th January 2025
168AQI
30th January 2025
123AQI
31st January 2025
155AQI
1st February 2025
81AQI
2nd February 2025
82AQI
3rd February 2025
73AQI
4th February 2025
90AQI
5th February 2025
106AQI
6th February 2025
118AQI
7th February 2025
99AQI
8th February 2025
82AQI
9th February 2025
82AQI
10th February 2025
97AQI
11th February 2025
83AQI
12th February 2025
115AQI
13th February 2025
135AQI
14th February 2025
149AQI
15th February 2025
143AQI
16th February 2025
103AQI
17th February 2025
112AQI
18th February 2025
85AQI
19th February 2025
88AQI
20th February 2025
52AQI
21st February 2025
89AQI
22nd February 2025
49AQI
23rd February 2025
56AQI
24th February 2025
96AQI
25th February 2025
126AQI
26th February 2025
139AQI
27th February 2025
101AQI
28th February 2025
97AQI
1st March 2025
71AQI
2nd March 2025
67AQI
3rd March 2025
60AQI
4th March 2025
52AQI
5th March 2025
42AQI
6th March 2025
58AQI
7th March 2025
96AQI
8th March 2025
92AQI
9th March 2025
109AQI
10th March 2025
113AQI
11th March 2025
97AQI
12th March 2025
111AQI
13th March 2025
100AQI
14th March 2025
73AQI
15th March 2025
61AQI
16th March 2025
73AQI
17th March 2025
78AQI
18th March 2025
70AQI
19th March 2025
77AQI
20th March 2025
77AQI
21st March 2025
80AQI
22nd March 2025
84AQI
23rd March 2025
108AQI
24th March 2025
120AQI
25th March 2025
129AQI
26th March 2025
120AQI
27th March 2025
108AQI
28th March 2025
86AQI
29th March 2025
75AQI
30th March 2025
60AQI
31st March 2025
79AQI
1st April 2025
83AQI
2nd April 2025
88AQI
3rd April 2025
86AQI
4th April 2025
116AQI
5th April 2025
116AQI
6th April 2025
129AQI
7th April 2025
116AQI
8th April 2025
119AQI
9th April 2025
110AQI
10th April 2025
84AQI
11th April 2025
93AQI
12th April 2025
142AQI
13th April 2025
135AQI
14th April 2025
128AQI
15th April 2025
107AQI
16th April 2025
106AQI
17th April 2025
101AQI
18th April 2025
93AQI
19th April 2025
74AQI
20th April 2025
67AQI
21st April 2025
71AQI
22nd April 2025
63AQI
23rd April 2025
88AQI
24th April 2025
69AQI
25th April 2025
74AQI
26th April 2025
65AQI
27th April 2025
64AQI
28th April 2025
70AQI
29th April 2025
82AQI
30th April 2025
90AQI
1st May 2025
86AQI
2nd May 2025
84AQI
3rd May 2025
78AQI
4th May 2025
83AQI
5th May 2025
68AQI
6th May 2025
79AQI
7th May 2025
100AQI
8th May 2025
64AQI
9th May 2025
70AQI
10th May 2025
76AQI
11th May 2025
80AQI
12th May 2025
77AQI
13th May 2025
77AQI
14th May 2025
73AQI
15th May 2025
75AQI
16th May 2025
72AQI
17th May 2025
61AQI
18th May 2025
62AQI
19th May 2025
56AQI
20th May 2025
54AQI
21st May 2025
57AQI
22nd May 2025
57AQI
23rd May 2025
69AQI
24th May 2025
86AQI
25th May 2025
100AQI
26th May 2025
99AQI
27th May 2025
92AQI
28th May 2025
75AQI
29th May 2025
66AQI
30th May 2025
63AQI
31st May 2025
54AQI
1st June 2025
57AQI
2nd June 2025
56AQI
3rd June 2025
73AQI
4th June 2025
78AQI
5th June 2025
74AQI
6th June 2025
69AQI
7th June 2025
64AQI
8th June 2025
65AQI
9th June 2025
75AQI
10th June 2025
75AQI
11th June 2025
71AQI
12th June 2025
73AQI
13th June 2025
75AQI
14th June 2025
57AQI
15th June 2025
51AQI
16th June 2025
53AQI
17th June 2025
46AQI
18th June 2025
40AQI
19th June 2025
39AQI
20th June 2025
38AQI
21st June 2025
37AQI
22nd June 2025
31AQI
23rd June 2025
40AQI
24th June 2025
47AQI
25th June 2025
52AQI
26th June 2025
44AQI
27th June 2025
42AQI
28th June 2025
42AQI
29th June 2025
40AQI
30th June 2025
40AQI
1st July 2025
36AQI
2nd July 2025
31AQI
3rd July 2025
40AQI
4th July 2025
49AQI
5th July 2025
57AQI
6th July 2025
60AQI
7th July 2025
61AQI
8th July 2025
62AQI
9th July 2025
62AQI
10th July 2025
56AQI
11th July 2025
53AQI
12th July 2025
58AQI
13th July 2025
59AQI
14th July 2025
56AQI
15th July 2025
52AQI
16th July 2025
54AQI
17th July 2025
58AQI
18th July 2025
60AQI
19th July 2025
65AQI
20th July 2025
48AQI
21st July 2025
42AQI
22nd July 2025
46AQI
23rd July 2025
41AQI
24th July 2025
52AQI
25th July 2025
61AQI
26th July 2025
57AQI
27th July 2025
61AQI
28th July 2025
56AQI
29th July 2025
58AQI
30th July 2025
56AQI
31st July 2025
59AQI
1st August 2025
61AQI
2nd August 2025
56AQI
3rd August 2025
54AQI
4th August 2025
58AQI
5th August 2025
51AQI
6th August 2025
45AQI
7th August 2025
44AQI
8th August 2025
40AQI
9th August 2025
52AQI
10th August 2025
59AQI
11th August 2025
59AQI
12th August 2025
60AQI
13th August 2025
61AQI
14th August 2025
57AQI
15th August 2025
44AQI
16th August 2025
50AQI
17th August 2025
52AQI
18th August 2025
46AQI
19th August 2025
43AQI
20th August 2025
44AQI
21st August 2025
48AQI
22nd August 2025
48AQI
23rd August 2025
53AQI
24th August 2025
50AQI
25th August 2025
48AQI
26th August 2025
53AQI
27th August 2025
53AQI
28th August 2025
55AQI
29th August 2025
55AQI
30th August 2025
56AQI
31st August 2025
57AQI
1st September 2025
56AQI
2nd September 2025
58AQI
3rd September 2025
59AQI
4th September 2025
59AQI
5th September 2025
66AQI
6th September 2025
66AQI
7th September 2025
68AQI
8th September 2025
56AQI
9th September 2025
47AQI
10th September 2025
48AQI
11th September 2025
46AQI
12th September 2025
50AQI
13th September 2025
54AQI
14th September 2025
57AQI
15th September 2025
59AQI
16th September 2025
46AQI
17th September 2025
51AQI
18th September 2025
74AQI
19th September 2025
74AQI
20th September 2025
48AQI
21st September 2025
53AQI
22nd September 2025
47AQI
23rd September 2025
57AQI
24th September 2025
37AQI
25th September 2025
57AQI
26th September 2025
46AQI
27th September 2025
49AQI
28th September 2025
74AQI
29th September 2025
79AQI
30th September 2025
97AQI
1st October 2025
122AQI
2nd October 2025
88AQI
3rd October 2025
61AQI
4th October 2025
79AQI
5th October 2025
6th October 2025
7th October 2025
8th October 2025
9th October 2025
10th October 2025
11th October 2025
12th October 2025
13th October 2025
14th October 2025
15th October 2025
16th October 2025
17th October 2025
18th October 2025
19th October 2025
20th October 2025
21st October 2025
22nd October 2025
23rd October 2025
24th October 2025
25th October 2025
26th October 2025
27th October 2025
28th October 2025
29th October 2025
30th October 2025
31st October 2025
1st November 2025
2nd November 2025
3rd November 2025
4th November 2025
5th November 2025
6th November 2025
7th November 2025
8th November 2025
9th November 2025
10th November 2025
11th November 2025
12th November 2025
13th November 2025
14th November 2025
15th November 2025
16th November 2025
17th November 2025
18th November 2025
19th November 2025
20th November 2025
21st November 2025
22nd November 2025
23rd November 2025
24th November 2025
25th November 2025
26th November 2025
27th November 2025
28th November 2025
29th November 2025
30th November 2025
1st December 2025
2nd December 2025
3rd December 2025
4th December 2025
5th December 2025
6th December 2025
7th December 2025
8th December 2025
9th December 2025
10th December 2025
11th December 2025
12th December 2025
13th December 2025
14th December 2025
15th December 2025
16th December 2025
17th December 2025
18th December 2025
19th December 2025
20th December 2025
21st December 2025
22nd December 2025
23rd December 2025
24th December 2025
25th December 2025
26th December 2025
27th December 2025
28th December 2025
29th December 2025
30th December 2025
31st December 2025

140AQI

97AQI

85AQI

94AQI

74AQI

55AQI

54AQI

52AQI

58AQI

88AQI

No. of days

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

202579AQI

1
18
11
1
1
16
11
1
22
8
18
12
31
13
17
8
23
12
19
10
20
3
1
45
170
50
11
1

Highest AQI recorded in

January

140AQI

Lowest AQI recorded in

August

52AQI

202481AQI

1
8
16
5
1
10
13
5
1
3
22
5
1
11
18
1
7
23
1
19
10
1
26
5
9
21
1
3
23
4
15
14
2
3
10
13
4
3
16
12
92
171
77
25
1

Highest AQI recorded in

December

134AQI

Lowest AQI recorded in

July

41AQI

202387AQI

2
5
13
11
2
9
11
6
2
14
12
3
6
20
4
3
22
6
15
14
1
14
17
9
21
1
6
15
9
2
13
16
1
15
9
1
2
17
9
3
64
182
91
24

Highest AQI recorded in

January

134AQI

Lowest AQI recorded in

July

53AQI

202281AQI

6
12
9
4
7
11
3
4
18
8
1
3
11
3
9
19
3
23
7
14
9
1
11
17
3
12
15
1
6
21
3
1
6
14
10
76
138
75
16

Highest AQI recorded in

December

127AQI

Lowest AQI recorded in

June

44AQI

202182AQI

3
21
6
1
2
10
15
1
2
17
12
7
22
1
10
21
13
16
1
9
22
5
16
2
23
5
6
19
5
1
6
16
7
1
1
7
19
4
63
192
86
13
1

Highest AQI recorded in

January

132AQI

Lowest AQI recorded in

July

58AQI

202079AQI

6
7
4
11
6
15
3
21
9
4
27
14
15
2
7
15
8
7
10
10
4
5
6
16
3
1
6
14
10
69
121
59
17

Highest AQI recorded in

December

127AQI

Lowest AQI recorded in

June

44AQI

Most & Least Polluted Years Over the Last 6 Years

Most Polluted Year Recorded
2023(Avg.)
87AQI
Least Polluted Year Recorded
2025(Avg.)
79AQI

City Accounting Office's annual 2025 AQI (79) shows an average percentage change of -3.7% (improved AQI) compared to previous years: 2020 (79), 2021 (82), 2022 (81), 2023 (87), 2024 (81).