Changan, 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
Changan, Hunan, China
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
1st Aug 2021
110AQILowest AQI recorded on
1st Aug 2024
23AQISame Day Analysis (2nd August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 64 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
Changan, Hunan, China
AQI
Day
Night
.
5 AM2nd Aug 2025
7 PM
4 AM3rd Aug 2025
Day time
Avg. Highest Time
12PM2nd Aug
81AQI
Avg. Lowest Time
4PM2nd Aug
60AQI
Night time
Avg. Highest Time
10PM2nd Aug
70AQI
Avg. Lowest Time
1AM3rd Aug
58AQI
In the last 24 hours,
Changan's AQI reached its highest point of 81 at 12 PM during the Day, while the lowest point, 58, was recorded at 1 AM during the Night between 2nd Aug and 3rd Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Changan, 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 2025465 AMAQI
4th Jul 2025466 AMAQI
4th Jul 2025467 AMAQI
4th Jul 2025538 AMAQI
4th Jul 2025559 AMAQI
4th Jul 20254910 AMAQI
4th Jul 20255311 AMAQI
4th Jul 20255212 PMAQI
4th Jul 2025541 PMAQI
4th Jul 2025512 PMAQI
4th Jul 2025483 PMAQI
4th Jul 2025444 PMAQI
4th Jul 2025425 PMAQI
4th Jul 2025426 PMAQI
4th Jul 2025497 PMAQI
4th Jul 2025508 PMAQI
4th Jul 2025519 PMAQI
4th Jul 20255210 PMAQI
4th Jul 20255211 PMAQI
5th Jul 20255212 AMAQI
5th Jul 2025491 AMAQI
5th Jul 2025482 AMAQI
5th Jul 2025483 AMAQI
5th Jul 2025504 AMAQI
32°C27/37°C
5th Jul 2025495 AMAQI
5th Jul 2025506 AMAQI
5th Jul 2025497 AMAQI
5th Jul 2025608 AMAQI
5th Jul 2025689 AMAQI
5th Jul 20256610 AMAQI
5th Jul 20256411 AMAQI
5th Jul 20255812 PMAQI
5th Jul 2025571 PMAQI
5th Jul 2025572 PMAQI
5th Jul 2025583 PMAQI
5th Jul 2025564 PMAQI
5th Jul 2025585 PMAQI
5th Jul 2025576 PMAQI
5th Jul 2025567 PMAQI
5th Jul 2025538 PMAQI
5th Jul 2025549 PMAQI
5th Jul 20255310 PMAQI
5th Jul 20255411 PMAQI
6th Jul 20255312 AMAQI
6th Jul 2025521 AMAQI
6th Jul 2025522 AMAQI
6th Jul 2025523 AMAQI
6th Jul 2025534 AMAQI
33°C28/38°C
6th Jul 2025535 AMAQI
6th Jul 2025536 AMAQI
6th Jul 2025537 AMAQI
6th Jul 2025608 AMAQI
6th Jul 2025729 AMAQI
6th Jul 20257310 AMAQI
6th Jul 20257311 AMAQI
6th Jul 20256412 PMAQI
6th Jul 2025671 PMAQI
6th Jul 2025672 PMAQI
6th Jul 2025683 PMAQI
6th Jul 2025664 PMAQI
6th Jul 2025665 PMAQI
6th Jul 2025626 PMAQI
6th Jul 2025627 PMAQI
6th Jul 2025568 PMAQI
6th Jul 2025579 PMAQI
6th Jul 20255710 PMAQI
6th Jul 20255811 PMAQI
7th Jul 20255812 AMAQI
7th Jul 2025541 AMAQI
7th Jul 2025542 AMAQI
7th Jul 2025543 AMAQI
7th Jul 2025554 AMAQI
32°C28/37°C
7th Jul 2025555 AMAQI
7th Jul 2025546 AMAQI
7th Jul 2025557 AMAQI
7th Jul 2025598 AMAQI
7th Jul 2025649 AMAQI
7th Jul 20256110 AMAQI
7th Jul 20257011 AMAQI
7th Jul 20256812 PMAQI
7th Jul 2025701 PMAQI
7th Jul 2025662 PMAQI
7th Jul 2025683 PMAQI
7th Jul 2025674 PMAQI
7th Jul 2025655 PMAQI
7th Jul 2025616 PMAQI
7th Jul 2025627 PMAQI
7th Jul 2025628 PMAQI
7th Jul 2025629 PMAQI
7th Jul 20256210 PMAQI
7th Jul 20256111 PMAQI
8th Jul 20256212 AMAQI
8th Jul 2025571 AMAQI
8th Jul 2025572 AMAQI
8th Jul 2025573 AMAQI
8th Jul 2025584 AMAQI
32°C27/38°C
8th Jul 2025585 AMAQI
8th Jul 2025586 AMAQI
8th Jul 2025587 AMAQI
8th Jul 2025708 AMAQI
8th Jul 2025799 AMAQI
8th Jul 20257910 AMAQI
8th Jul 20257211 AMAQI
8th Jul 20257012 PMAQI
8th Jul 2025681 PMAQI
8th Jul 2025682 PMAQI
8th Jul 2025683 PMAQI
8th Jul 2025684 PMAQI
8th Jul 2025685 PMAQI
8th Jul 2025586 PMAQI
8th Jul 2025547 PMAQI
8th Jul 2025598 PMAQI
8th Jul 2025639 PMAQI
8th Jul 20256410 PMAQI
8th Jul 20256211 PMAQI
9th Jul 20256312 AMAQI
9th Jul 2025601 AMAQI
9th Jul 2025612 AMAQI
9th Jul 2025613 AMAQI
9th Jul 2025634 AMAQI
32°C28/38°C
9th Jul 2025635 AMAQI
9th Jul 2025636 AMAQI
9th Jul 2025637 AMAQI
9th Jul 2025668 AMAQI
9th Jul 2025619 AMAQI
9th Jul 20255110 AMAQI
9th Jul 20254411 AMAQI
9th Jul 20254912 PMAQI
9th Jul 2025481 PMAQI
9th Jul 2025492 PMAQI
9th Jul 2025503 PMAQI
9th Jul 2025514 PMAQI
9th Jul 2025475 PMAQI
9th Jul 2025486 PMAQI
9th Jul 2025527 PMAQI
9th Jul 2025618 PMAQI
9th Jul 2025629 PMAQI
9th Jul 20256210 PMAQI
9th Jul 20256011 PMAQI
10th Jul 20256012 AMAQI
10th Jul 2025621 AMAQI
10th Jul 2025622 AMAQI
10th Jul 2025623 AMAQI
10th Jul 2025624 AMAQI
30°C26/34°C
10th Jul 2025625 AMAQI
10th Jul 2025626 AMAQI
10th Jul 2025627 AMAQI
10th Jul 2025508 AMAQI
10th Jul 2025529 AMAQI
10th Jul 20254610 AMAQI
10th Jul 20255111 AMAQI
10th Jul 20255312 PMAQI
10th Jul 2025511 PMAQI
10th Jul 2025512 PMAQI
10th Jul 2025523 PMAQI
10th Jul 2025544 PMAQI
10th Jul 2025515 PMAQI
10th Jul 2025486 PMAQI
10th Jul 2025527 PMAQI
10th Jul 2025598 PMAQI
10th Jul 2025589 PMAQI
10th Jul 20255910 PMAQI
10th Jul 20256011 PMAQI
11th Jul 20256012 AMAQI
11th Jul 2025601 AMAQI
11th Jul 2025612 AMAQI
11th Jul 2025613 AMAQI
11th Jul 2025604 AMAQI
30°C26/34°C
11th Jul 2025605 AMAQI
11th Jul 2025616 AMAQI
11th Jul 2025607 AMAQI
11th Jul 2025688 AMAQI
11th Jul 2025719 AMAQI
11th Jul 20257210 AMAQI
11th Jul 20257611 AMAQI
11th Jul 20257112 PMAQI
11th Jul 2025681 PMAQI
11th Jul 2025672 PMAQI
11th Jul 2025643 PMAQI
11th Jul 2025644 PMAQI
11th Jul 2025635 PMAQI
11th Jul 2025606 PMAQI
11th Jul 2025627 PMAQI
11th Jul 2025628 PMAQI
11th Jul 2025629 PMAQI
11th Jul 20256210 PMAQI
11th Jul 20256211 PMAQI
12th Jul 20256112 AMAQI
12th Jul 2025611 AMAQI
12th Jul 2025602 AMAQI
12th Jul 2025613 AMAQI
12th Jul 2025624 AMAQI
30°C25/34°C
12th Jul 2025625 AMAQI
12th Jul 2025616 AMAQI
12th Jul 2025627 AMAQI
12th Jul 2025578 AMAQI
12th Jul 2025599 AMAQI
12th Jul 20256110 AMAQI
12th Jul 20256211 AMAQI
12th Jul 20256212 PMAQI
12th Jul 2025601 PMAQI
12th Jul 2025632 PMAQI
12th Jul 2025603 PMAQI
12th Jul 2025624 PMAQI
12th Jul 2025615 PMAQI
12th Jul 2025606 PMAQI
12th Jul 2025557 PMAQI
12th Jul 2025598 PMAQI
12th Jul 2025589 PMAQI
12th Jul 20256010 PMAQI
12th Jul 20255911 PMAQI
13th Jul 20255812 AMAQI
13th Jul 2025601 AMAQI
13th Jul 2025612 AMAQI
13th Jul 2025613 AMAQI
13th Jul 2025624 AMAQI
29°C25/33°C
13th Jul 2025615 AMAQI
13th Jul 2025616 AMAQI
13th Jul 2025617 AMAQI
13th Jul 2025528 AMAQI
13th Jul 2025529 AMAQI
13th Jul 20255210 AMAQI
13th Jul 20255411 AMAQI
13th Jul 20255512 PMAQI
13th Jul 2025551 PMAQI
13th Jul 2025532 PMAQI
13th Jul 2025553 PMAQI
13th Jul 2025524 PMAQI
13th Jul 2025545 PMAQI
13th Jul 2025526 PMAQI
13th Jul 2025557 PMAQI
13th Jul 2025588 PMAQI
13th Jul 2025599 PMAQI
13th Jul 20255910 PMAQI
13th Jul 20256011 PMAQI
14th Jul 20255912 AMAQI
14th Jul 2025601 AMAQI
14th Jul 2025602 AMAQI
14th Jul 2025603 AMAQI
14th Jul 2025594 AMAQI
29°C25/34°C
14th Jul 2025605 AMAQI
14th Jul 2025596 AMAQI
14th Jul 2025597 AMAQI
14th Jul 2025608 AMAQI
14th Jul 2025609 AMAQI
14th Jul 20255710 AMAQI
14th Jul 20255611 AMAQI
14th Jul 20255712 PMAQI
14th Jul 2025571 PMAQI
14th Jul 2025572 PMAQI
14th Jul 2025603 PMAQI
14th Jul 2025564 PMAQI
14th Jul 2025575 PMAQI
14th Jul 2025586 PMAQI
14th Jul 2025597 PMAQI
14th Jul 2025588 PMAQI
14th Jul 2025589 PMAQI
14th Jul 20255810 PMAQI
14th Jul 20255911 PMAQI
15th Jul 20255812 AMAQI
15th Jul 2025601 AMAQI
15th Jul 2025592 AMAQI
15th Jul 2025593 AMAQI
15th Jul 2025604 AMAQI
31°C26/36°C
15th Jul 2025605 AMAQI
15th Jul 2025606 AMAQI
15th Jul 2025607 AMAQI
15th Jul 2025588 AMAQI
15th Jul 2025639 AMAQI
15th Jul 20256210 AMAQI
15th Jul 20256411 AMAQI
15th Jul 20256112 PMAQI
15th Jul 2025621 PMAQI
15th Jul 2025592 PMAQI
15th Jul 2025593 PMAQI
15th Jul 2025584 PMAQI
15th Jul 2025575 PMAQI
15th Jul 2025576 PMAQI
15th Jul 2025577 PMAQI
15th Jul 2025608 PMAQI
15th Jul 2025619 PMAQI
15th Jul 20256210 PMAQI
15th Jul 20256111 PMAQI
16th Jul 20256012 AMAQI
16th Jul 2025591 AMAQI
16th Jul 2025592 AMAQI
16th Jul 2025593 AMAQI
16th Jul 2025604 AMAQI
33°C28/38°C
16th Jul 2025605 AMAQI
16th Jul 2025606 AMAQI
16th Jul 2025597 AMAQI
16th Jul 2025608 AMAQI
16th Jul 2025579 AMAQI
16th Jul 20255810 AMAQI
16th Jul 20255211 AMAQI
16th Jul 20255612 PMAQI
16th Jul 2025561 PMAQI
16th Jul 2025582 PMAQI
16th Jul 2025563 PMAQI
16th Jul 2025554 PMAQI
16th Jul 2025555 PMAQI
16th Jul 2025556 PMAQI
16th Jul 2025567 PMAQI
16th Jul 2025628 PMAQI
16th Jul 2025629 PMAQI
16th Jul 20256210 PMAQI
16th Jul 20256211 PMAQI
17th Jul 20256112 AMAQI
17th Jul 2025611 AMAQI
17th Jul 2025602 AMAQI
17th Jul 2025603 AMAQI
17th Jul 2025604 AMAQI
33°C29/39°C
17th Jul 2025605 AMAQI
17th Jul 2025606 AMAQI
17th Jul 2025607 AMAQI
17th Jul 2025578 AMAQI
17th Jul 2025549 AMAQI
17th Jul 20255910 AMAQI
17th Jul 20255611 AMAQI
17th Jul 20255812 PMAQI
17th Jul 2025571 PMAQI
17th Jul 2025582 PMAQI
17th Jul 2025583 PMAQI
17th Jul 2025604 PMAQI
17th Jul 2025635 PMAQI
17th Jul 2025666 PMAQI
17th Jul 2025677 PMAQI
17th Jul 2025648 PMAQI
17th Jul 2025639 PMAQI
17th Jul 20256310 PMAQI
17th Jul 20256311 PMAQI
18th Jul 20256212 AMAQI
18th Jul 2025601 AMAQI
18th Jul 2025602 AMAQI
18th Jul 2025613 AMAQI
18th Jul 2025604 AMAQI
30°C28/35°C
18th Jul 2025605 AMAQI
18th Jul 2025606 AMAQI
18th Jul 2025607 AMAQI
18th Jul 2025608 AMAQI
18th Jul 2025579 AMAQI
18th Jul 20255810 AMAQI
18th Jul 20255411 AMAQI
18th Jul 20256012 PMAQI
18th Jul 2025581 PMAQI
18th Jul 2025652 PMAQI
18th Jul 2025613 PMAQI
18th Jul 2025564 PMAQI
18th Jul 2025515 PMAQI
18th Jul 2025526 PMAQI
18th Jul 2025547 PMAQI
18th Jul 2025608 PMAQI
18th Jul 2025619 PMAQI
18th Jul 20256210 PMAQI
18th Jul 20256211 PMAQI
19th Jul 20256212 AMAQI
19th Jul 2025621 AMAQI
19th Jul 2025622 AMAQI
19th Jul 2025623 AMAQI
19th Jul 2025624 AMAQI
31°C27/37°C
19th Jul 2025615 AMAQI
19th Jul 2025626 AMAQI
19th Jul 2025627 AMAQI
19th Jul 2025648 AMAQI
19th Jul 2025639 AMAQI
19th Jul 20256210 AMAQI
19th Jul 20256211 AMAQI
19th Jul 20256412 PMAQI
19th Jul 2025651 PMAQI
19th Jul 2025672 PMAQI
19th Jul 2025663 PMAQI
19th Jul 2025664 PMAQI
19th Jul 2025625 PMAQI
19th Jul 2025606 PMAQI
19th Jul 2025617 PMAQI
19th Jul 2025638 PMAQI
19th Jul 2025639 PMAQI
19th Jul 20256310 PMAQI
19th Jul 20256411 PMAQI
20th Jul 20256412 AMAQI
20th Jul 2025621 AMAQI
20th Jul 2025622 AMAQI
20th Jul 2025623 AMAQI
20th Jul 2025624 AMAQI
30°C26/35°C
20th Jul 2025625 AMAQI
20th Jul 2025636 AMAQI
20th Jul 2025627 AMAQI
20th Jul 2025638 AMAQI
20th Jul 2025629 AMAQI
20th Jul 20256610 AMAQI
20th Jul 20255811 AMAQI
20th Jul 20256612 PMAQI
20th Jul 2025531 PMAQI
20th Jul 2025522 PMAQI
20th Jul 2025503 PMAQI
20th Jul 2025524 PMAQI
20th Jul 2025445 PMAQI
20th Jul 2025356 PMAQI
20th Jul 2025347 PMAQI
20th Jul 2025558 PMAQI
20th Jul 2025559 PMAQI
20th Jul 20255510 PMAQI
20th Jul 20255211 PMAQI
21st Jul 20255512 AMAQI
21st Jul 2025621 AMAQI
21st Jul 2025632 AMAQI
21st Jul 2025633 AMAQI
21st Jul 2025634 AMAQI
30°C27/34°C
21st Jul 2025625 AMAQI
21st Jul 2025636 AMAQI
21st Jul 2025627 AMAQI
21st Jul 2025468 AMAQI
21st Jul 2025329 AMAQI
21st Jul 20252510 AMAQI
21st Jul 20252211 AMAQI
21st Jul 20252412 PMAQI
21st Jul 2025271 PMAQI
21st Jul 2025252 PMAQI
21st Jul 2025243 PMAQI
21st Jul 2025244 PMAQI
21st Jul 2025285 PMAQI
21st Jul 2025336 PMAQI
21st Jul 2025337 PMAQI
21st Jul 2025528 PMAQI
21st Jul 2025549 PMAQI
21st Jul 20255510 PMAQI
21st Jul 20255511 PMAQI
22nd Jul 20255812 AMAQI
22nd Jul 2025611 AMAQI
22nd Jul 2025622 AMAQI
22nd Jul 2025603 AMAQI
22nd Jul 2025584 AMAQI
31°C26/36°C
22nd Jul 2025575 AMAQI
22nd Jul 2025576 AMAQI
22nd Jul 2025577 AMAQI
22nd Jul 2025298 AMAQI
22nd Jul 2025199 AMAQI
22nd Jul 20252010 AMAQI
22nd Jul 20252011 AMAQI
22nd Jul 20252612 PMAQI
22nd Jul 2025331 PMAQI
22nd Jul 2025312 PMAQI
22nd Jul 2025293 PMAQI
22nd Jul 2025214 PMAQI
22nd Jul 2025195 PMAQI
22nd Jul 2025206 PMAQI
22nd Jul 2025277 PMAQI
22nd Jul 2025468 PMAQI
22nd Jul 2025479 PMAQI
22nd Jul 20254810 PMAQI
22nd Jul 20254811 PMAQI
23rd Jul 20254912 AMAQI
23rd Jul 2025561 AMAQI
23rd Jul 2025592 AMAQI
23rd Jul 2025583 AMAQI
23rd Jul 2025544 AMAQI
29°C26/33°C
23rd Jul 2025545 AMAQI
23rd Jul 2025546 AMAQI
23rd Jul 2025547 AMAQI
23rd Jul 2025288 AMAQI
23rd Jul 2025209 AMAQI
23rd Jul 20252110 AMAQI
23rd Jul 20252111 AMAQI
23rd Jul 20252312 PMAQI
23rd Jul 2025251 PMAQI
23rd Jul 2025242 PMAQI
23rd Jul 2025233 PMAQI
23rd Jul 2025224 PMAQI
23rd Jul 2025215 PMAQI
23rd Jul 2025226 PMAQI
23rd Jul 2025337 PMAQI
23rd Jul 2025428 PMAQI
23rd Jul 2025419 PMAQI
23rd Jul 20254110 PMAQI
23rd Jul 20254111 PMAQI
24th Jul 20254212 AMAQI
24th Jul 2025411 AMAQI
24th Jul 2025522 AMAQI
24th Jul 2025553 AMAQI
24th Jul 2025524 AMAQI
28°C25/30°C
24th Jul 2025525 AMAQI
24th Jul 2025526 AMAQI
24th Jul 2025527 AMAQI
24th Jul 2025348 AMAQI
24th Jul 2025329 AMAQI
24th Jul 20252910 AMAQI
24th Jul 20253511 AMAQI
24th Jul 20254112 PMAQI
24th Jul 2025441 PMAQI
24th Jul 2025432 PMAQI
24th Jul 2025503 PMAQI
24th Jul 2025524 PMAQI
24th Jul 2025525 PMAQI
24th Jul 2025466 PMAQI
24th Jul 2025507 PMAQI
24th Jul 2025508 PMAQI
24th Jul 2025509 PMAQI
24th Jul 20254410 PMAQI
24th Jul 20254811 PMAQI
25th Jul 20254412 AMAQI
25th Jul 2025521 AMAQI
25th Jul 2025522 AMAQI
25th Jul 2025523 AMAQI
25th Jul 2025524 AMAQI
30°C25/35°C
25th Jul 2025515 AMAQI
25th Jul 2025516 AMAQI
25th Jul 2025517 AMAQI
25th Jul 2025488 AMAQI
25th Jul 2025539 AMAQI
25th Jul 20255010 AMAQI
25th Jul 20255411 AMAQI
25th Jul 20255412 PMAQI
25th Jul 2025601 PMAQI
25th Jul 2025602 PMAQI
25th Jul 2025593 PMAQI
25th Jul 2025544 PMAQI
25th Jul 2025415 PMAQI
25th Jul 2025386 PMAQI
25th Jul 2025427 PMAQI
25th Jul 2025488 PMAQI
25th Jul 2025529 PMAQI
25th Jul 20255010 PMAQI
25th Jul 20255211 PMAQI
26th Jul 20255212 AMAQI
26th Jul 2025521 AMAQI
26th Jul 2025522 AMAQI
26th Jul 2025523 AMAQI
26th Jul 2025524 AMAQI
31°C26/37°C
26th Jul 2025525 AMAQI
26th Jul 2025526 AMAQI
26th Jul 2025527 AMAQI
26th Jul 2025528 AMAQI
26th Jul 2025529 AMAQI
26th Jul 20255710 AMAQI
26th Jul 20256011 AMAQI
26th Jul 20256212 PMAQI
26th Jul 2025641 PMAQI
26th Jul 2025582 PMAQI
26th Jul 2025553 PMAQI
26th Jul 2025534 PMAQI
26th Jul 2025565 PMAQI
26th Jul 2025546 PMAQI
26th Jul 2025557 PMAQI
26th Jul 2025588 PMAQI
26th Jul 2025589 PMAQI
26th Jul 20255610 PMAQI
26th Jul 20255511 PMAQI
27th Jul 20255312 AMAQI
27th Jul 2025531 AMAQI
27th Jul 2025532 AMAQI
27th Jul 2025533 AMAQI
27th Jul 2025544 AMAQI
31°C27/36°C
27th Jul 2025545 AMAQI
27th Jul 2025546 AMAQI
27th Jul 2025547 AMAQI
27th Jul 2025528 AMAQI
27th Jul 2025519 AMAQI
27th Jul 20254310 AMAQI
27th Jul 20254311 AMAQI
27th Jul 20254012 PMAQI
27th Jul 2025431 PMAQI
27th Jul 2025362 PMAQI
27th Jul 2025333 PMAQI
27th Jul 2025354 PMAQI
27th Jul 2025355 PMAQI
27th Jul 2025386 PMAQI
27th Jul 2025417 PMAQI
27th Jul 2025528 PMAQI
27th Jul 2025519 PMAQI
27th Jul 20254810 PMAQI
27th Jul 20255011 PMAQI
28th Jul 20254812 AMAQI
28th Jul 2025541 AMAQI
28th Jul 2025542 AMAQI
28th Jul 2025543 AMAQI
28th Jul 2025534 AMAQI
30°C26/34°C
28th Jul 2025535 AMAQI
28th Jul 2025536 AMAQI
28th Jul 2025537 AMAQI
28th Jul 2025538 AMAQI
28th Jul 2025499 AMAQI
28th Jul 20253610 AMAQI
28th Jul 20255211 AMAQI
28th Jul 20255512 PMAQI
28th Jul 2025541 PMAQI
28th Jul 2025522 PMAQI
28th Jul 2025493 PMAQI
28th Jul 2025504 PMAQI
28th Jul 2025525 PMAQI
28th Jul 2025476 PMAQI
28th Jul 2025497 PMAQI
28th Jul 2025468 PMAQI
28th Jul 2025489 PMAQI
28th Jul 20255210 PMAQI
28th Jul 20255411 PMAQI
29th Jul 20255412 AMAQI
29th Jul 2025541 AMAQI
29th Jul 2025542 AMAQI
29th Jul 2025543 AMAQI
29th Jul 2025544 AMAQI
30°C26/34°C
29th Jul 2025545 AMAQI
29th Jul 2025546 AMAQI
29th Jul 2025547 AMAQI
29th Jul 2025558 AMAQI
29th Jul 2025509 AMAQI
29th Jul 20255310 AMAQI
29th Jul 20254911 AMAQI
29th Jul 20254812 PMAQI
29th Jul 2025481 PMAQI
29th Jul 2025512 PMAQI
29th Jul 2025553 PMAQI
29th Jul 2025334 PMAQI
29th Jul 2025345 PMAQI
29th Jul 2025346 PMAQI
29th Jul 2025337 PMAQI
29th Jul 2025518 PMAQI
29th Jul 2025479 PMAQI
29th Jul 20255210 PMAQI
29th Jul 20255411 PMAQI
30th Jul 20255612 AMAQI
30th Jul 2025541 AMAQI
30th Jul 2025552 AMAQI
30th Jul 2025553 AMAQI
30th Jul 2025544 AMAQI
30°C25/35°C
30th Jul 2025545 AMAQI
30th Jul 2025546 AMAQI
30th Jul 2025547 AMAQI
30th Jul 2025558 AMAQI
30th Jul 2025509 AMAQI
30th Jul 20255410 AMAQI
30th Jul 20255111 AMAQI
30th Jul 20255212 PMAQI
30th Jul 2025421 PMAQI
30th Jul 2025422 PMAQI
30th Jul 2025343 PMAQI
30th Jul 2025514 PMAQI
30th Jul 2025505 PMAQI
30th Jul 2025546 PMAQI
30th Jul 2025547 PMAQI
30th Jul 2025568 PMAQI
30th Jul 2025569 PMAQI
30th Jul 20255610 PMAQI
30th Jul 20255611 PMAQI
31st Jul 20255712 AMAQI
31st Jul 2025551 AMAQI
31st Jul 2025552 AMAQI
31st Jul 2025553 AMAQI
31st Jul 2025554 AMAQI
30°C26/34°C
31st Jul 2025555 AMAQI
31st Jul 2025556 AMAQI
31st Jul 2025557 AMAQI
31st Jul 2025558 AMAQI
31st Jul 2025559 AMAQI
31st Jul 20255310 AMAQI
31st Jul 20255711 AMAQI
31st Jul 20256312 PMAQI
31st Jul 2025581 PMAQI
31st Jul 2025582 PMAQI
31st Jul 2025543 PMAQI
31st Jul 2025544 PMAQI
31st Jul 2025535 PMAQI
31st Jul 2025556 PMAQI
31st Jul 2025547 PMAQI
31st Jul 2025598 PMAQI
31st Jul 2025609 PMAQI
31st Jul 20256210 PMAQI
31st Jul 20256111 PMAQI
1st Aug 20256412 AMAQI
1st Aug 2025581 AMAQI
1st Aug 2025572 AMAQI
1st Aug 2025563 AMAQI
1st Aug 2025584 AMAQI
29°C25/34°C
1st Aug 2025575 AMAQI
1st Aug 2025586 AMAQI
1st Aug 2025577 AMAQI
1st Aug 2025688 AMAQI
1st Aug 2025629 AMAQI
1st Aug 20257410 AMAQI
1st Aug 20256511 AMAQI
1st Aug 20256412 PMAQI
1st Aug 2025691 PMAQI
1st Aug 2025722 PMAQI
1st Aug 2025693 PMAQI
1st Aug 2025674 PMAQI
1st Aug 2025625 PMAQI
1st Aug 2025636 PMAQI
1st Aug 2025637 PMAQI
1st Aug 2025648 PMAQI
1st Aug 2025639 PMAQI
1st Aug 20256610 PMAQI
1st Aug 20256611 PMAQI
2nd Aug 20256312 AMAQI
2nd Aug 2025581 AMAQI
2nd Aug 2025582 AMAQI
2nd Aug 2025593 AMAQI
2nd Aug 2025604 AMAQI
31°C26/36°C
2nd Aug 2025605 AMAQI
2nd Aug 2025606 AMAQI
2nd Aug 2025607 AMAQI
2nd Aug 2025808 AMAQI
2nd Aug 2025809 AMAQI
2nd Aug 20257310 AMAQI
2nd Aug 20257511 AMAQI
2nd Aug 20258112 PMAQI
2nd Aug 2025771 PMAQI
2nd Aug 2025712 PMAQI
2nd Aug 2025663 PMAQI
2nd Aug 2025604 PMAQI
2nd Aug 2025625 PMAQI
2nd Aug 2025666 PMAQI
2nd Aug 2025687 PMAQI
2nd Aug 2025648 PMAQI
2nd Aug 2025689 PMAQI
2nd Aug 20257010 PMAQI
2nd Aug 20256911 PMAQI
3rd Aug 20256812 AMAQI
3rd Aug 2025581 AMAQI
3rd Aug 2025592 AMAQI
3rd Aug 2025623 AMAQI
3rd Aug 2025634 AMAQI
31°C27/36°C
3rd Aug 2025635 AMAQI
5 AM3rd Aug 2025626 AMAQI
3rd Aug 2025637 AMAQI
3rd Aug 2025748 AMAQI
3rd Aug 2025809 AMAQI
3rd Aug 20257810 AMAQI
3rd Aug 20257411 AMAQI
3rd Aug 20257212 PMAQI
12 PM3rd Aug 2025721 PMAQI
3rd Aug 2025702 PMAQI
3rd Aug 2025683 PMAQI
3rd Aug 2025624 PMAQI
3rd Aug 2025575 PMAQI
3rd Aug 2025646 PMAQI
3rd Aug 2025637 PMAQI
7 PM3rd Aug 2025638 PMAQI
12 AM
4 AM
--°C/°C
Day time
Avg. Highest Time
5 AM - 7 PM
55AQI
15 hours / Day
450 hours / Month
Avg. Lowest Time
5 AM - 7 PM
55AQI
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. 55), while the lowest AQI was between 5 AM to 7 PM (Avg. 55).
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
Changan, Hunan, China
2025
10%
21
55%
118
28%
59
6%
13
1%
3
Total number of days with different AQI categories in last 215 days in 2025 (150 days remaining)
Good
21 DaysModerate
118 DaysPoor
59 DaysUnhealthy
13 DaysSevere
3 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 10%
Health Risk Level:
Extreme
In 2025, 10% 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
Changan, 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
158AQI
158AQI
2nd January 2025
174AQI
174AQI
3rd January 2025
187AQI
187AQI
4th January 2025
210AQI
210AQI
5th January 2025
150AQI
150AQI
6th January 2025
161AQI
161AQI
7th January 2025
143AQI
143AQI
8th January 2025
153AQI
153AQI
9th January 2025
127AQI
127AQI
10th January 2025
120AQI
120AQI
11th January 2025
134AQI
134AQI
12th January 2025
130AQI
130AQI
13th January 2025
142AQI
142AQI
14th January 2025
157AQI
157AQI
15th January 2025
111AQI
111AQI
16th January 2025
129AQI
129AQI
17th January 2025
123AQI
123AQI
18th January 2025
153AQI
153AQI
19th January 2025
150AQI
150AQI
20th January 2025
167AQI
167AQI
21st January 2025
153AQI
153AQI
22nd January 2025
171AQI
171AQI
23rd January 2025
205AQI
205AQI
24th January 2025
165AQI
165AQI
25th January 2025
97AQI
97AQI
26th January 2025
99AQI
99AQI
27th January 2025
91AQI
91AQI
28th January 2025
125AQI
125AQI
29th January 2025
148AQI
148AQI
30th January 2025
127AQI
127AQI
31st January 2025
166AQI
166AQI
1st February 2025
129AQI
129AQI
2nd February 2025
129AQI
129AQI
3rd February 2025
144AQI
144AQI
4th February 2025
126AQI
126AQI
5th February 2025
124AQI
124AQI
6th February 2025
104AQI
104AQI
7th February 2025
108AQI
108AQI
8th February 2025
75AQI
75AQI
9th February 2025
86AQI
86AQI
10th February 2025
104AQI
104AQI
11th February 2025
105AQI
105AQI
12th February 2025
128AQI
128AQI
13th February 2025
145AQI
145AQI
14th February 2025
148AQI
148AQI
15th February 2025
154AQI
154AQI
16th February 2025
124AQI
124AQI
17th February 2025
105AQI
105AQI
18th February 2025
91AQI
91AQI
19th February 2025
100AQI
100AQI
20th February 2025
119AQI
119AQI
21st February 2025
132AQI
132AQI
22nd February 2025
82AQI
82AQI
23rd February 2025
149AQI
149AQI
24th February 2025
134AQI
134AQI
25th February 2025
139AQI
139AQI
26th February 2025
120AQI
120AQI
27th February 2025
106AQI
106AQI
28th February 2025
110AQI
110AQI
1st March 2025
93AQI
93AQI
2nd March 2025
77AQI
77AQI
3rd March 2025
54AQI
54AQI
4th March 2025
83AQI
83AQI
5th March 2025
77AQI
77AQI
6th March 2025
99AQI
99AQI
7th March 2025
108AQI
108AQI
8th March 2025
101AQI
101AQI
9th March 2025
104AQI
104AQI
10th March 2025
99AQI
99AQI
11th March 2025
86AQI
86AQI
12th March 2025
113AQI
113AQI
13th March 2025
93AQI
93AQI
14th March 2025
83AQI
83AQI
15th March 2025
73AQI
73AQI
16th March 2025
84AQI
84AQI
17th March 2025
74AQI
74AQI
18th March 2025
82AQI
82AQI
19th March 2025
81AQI
81AQI
20th March 2025
83AQI
83AQI
21st March 2025
81AQI
81AQI
22nd March 2025
88AQI
88AQI
23rd March 2025
110AQI
110AQI
24th March 2025
97AQI
97AQI
25th March 2025
104AQI
104AQI
26th March 2025
121AQI
121AQI
27th March 2025
120AQI
120AQI
28th March 2025
87AQI
87AQI
29th March 2025
94AQI
94AQI
30th March 2025
82AQI
82AQI
31st March 2025
96AQI
96AQI
1st April 2025
92AQI
92AQI
2nd April 2025
93AQI
93AQI
3rd April 2025
98AQI
98AQI
4th April 2025
107AQI
107AQI
5th April 2025
111AQI
111AQI
6th April 2025
103AQI
103AQI
7th April 2025
103AQI
103AQI
8th April 2025
114AQI
114AQI
9th April 2025
103AQI
103AQI
10th April 2025
94AQI
94AQI
11th April 2025
85AQI
85AQI
12th April 2025
262AQI
262AQI
13th April 2025
126AQI
126AQI
14th April 2025
144AQI
144AQI
15th April 2025
96AQI
96AQI
16th April 2025
105AQI
105AQI
17th April 2025
104AQI
104AQI
18th April 2025
98AQI
98AQI
19th April 2025
100AQI
100AQI
20th April 2025
108AQI
108AQI
21st April 2025
77AQI
77AQI
22nd April 2025
86AQI
86AQI
23rd April 2025
83AQI
83AQI
24th April 2025
75AQI
75AQI
25th April 2025
88AQI
88AQI
26th April 2025
74AQI
74AQI
27th April 2025
80AQI
80AQI
28th April 2025
94AQI
94AQI
29th April 2025
92AQI
92AQI
30th April 2025
78AQI
78AQI
1st May 2025
86AQI
86AQI
2nd May 2025
79AQI
79AQI
3rd May 2025
86AQI
86AQI
4th May 2025
91AQI
91AQI
5th May 2025
77AQI
77AQI
6th May 2025
106AQI
106AQI
7th May 2025
108AQI
108AQI
8th May 2025
73AQI
73AQI
9th May 2025
86AQI
86AQI
10th May 2025
78AQI
78AQI
11th May 2025
76AQI
76AQI
12th May 2025
81AQI
81AQI
13th May 2025
80AQI
80AQI
14th May 2025
101AQI
101AQI
15th May 2025
86AQI
86AQI
16th May 2025
71AQI
71AQI
17th May 2025
78AQI
78AQI
18th May 2025
103AQI
103AQI
19th May 2025
85AQI
85AQI
20th May 2025
68AQI
68AQI
21st May 2025
67AQI
67AQI
22nd May 2025
57AQI
57AQI
23rd May 2025
81AQI
81AQI
24th May 2025
92AQI
92AQI
25th May 2025
89AQI
89AQI
26th May 2025
88AQI
88AQI
27th May 2025
97AQI
97AQI
28th May 2025
72AQI
72AQI
29th May 2025
72AQI
72AQI
30th May 2025
56AQI
56AQI
31st May 2025
52AQI
52AQI
1st June 2025
46AQI
46AQI
2nd June 2025
59AQI
59AQI
3rd June 2025
69AQI
69AQI
4th June 2025
87AQI
87AQI
5th June 2025
73AQI
73AQI
6th June 2025
78AQI
78AQI
7th June 2025
66AQI
66AQI
8th June 2025
63AQI
63AQI
9th June 2025
69AQI
69AQI
10th June 2025
75AQI
75AQI
11th June 2025
64AQI
64AQI
12th June 2025
66AQI
66AQI
13th June 2025
61AQI
61AQI
14th June 2025
57AQI
57AQI
15th June 2025
62AQI
62AQI
16th June 2025
59AQI
59AQI
17th June 2025
52AQI
52AQI
18th June 2025
52AQI
52AQI
19th June 2025
51AQI
51AQI
20th June 2025
50AQI
50AQI
21st June 2025
47AQI
47AQI
22nd June 2025
39AQI
39AQI
23rd June 2025
42AQI
42AQI
24th June 2025
46AQI
46AQI
25th June 2025
50AQI
50AQI
26th June 2025
52AQI
52AQI
27th June 2025
54AQI
54AQI
28th June 2025
47AQI
47AQI
29th June 2025
45AQI
45AQI
30th June 2025
46AQI
46AQI
1st July 2025
45AQI
45AQI
2nd July 2025
42AQI
42AQI
3rd July 2025
42AQI
42AQI
4th July 2025
47AQI
47AQI
5th July 2025
54AQI
54AQI
6th July 2025
58AQI
58AQI
7th July 2025
60AQI
60AQI
8th July 2025
63AQI
63AQI
9th July 2025
58AQI
58AQI
10th July 2025
57AQI
57AQI
11th July 2025
63AQI
63AQI
12th July 2025
60AQI
60AQI
13th July 2025
57AQI
57AQI
14th July 2025
59AQI
59AQI
15th July 2025
59AQI
59AQI
16th July 2025
59AQI
59AQI
17th July 2025
61AQI
61AQI
18th July 2025
60AQI
60AQI
19th July 2025
62AQI
62AQI
20th July 2025
56AQI
56AQI
21st July 2025
46AQI
46AQI
22nd July 2025
41AQI
41AQI
23rd July 2025
39AQI
39AQI
24th July 2025
47AQI
47AQI
25th July 2025
50AQI
50AQI
26th July 2025
55AQI
55AQI
27th July 2025
47AQI
47AQI
28th July 2025
51AQI
51AQI
29th July 2025
49AQI
49AQI
30th July 2025
52AQI
52AQI
31st July 2025
56AQI
56AQI
1st August 2025
63AQI
63AQI
2nd August 2025
64AQI
64AQI
146AQI
119AQI
91AQI
102AQI
81AQI
58AQI
53AQI
64AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202592AQI
3
14
12
2
5
22
1
23
8
18
11
1
27
4
10
20
11
20
2
21
118
59
13
3
Highest AQI recorded in
January146AQI
Lowest AQI recorded in
July53AQI
202487AQI
1
7
17
6
2
13
9
5
19
12
2
27
1
4
25
2
20
10
24
7
6
24
1
21
9
1
12
15
3
2
10
14
4
1
23
7
62
176
103
25
Highest AQI recorded in
December134AQI
Lowest AQI recorded in
July38AQI
202388AQI
5
11
9
6
1
10
13
4
2
11
15
3
4
18
7
1
1
29
1
9
21
15
16
5
23
3
7
23
1
15
14
1
2
17
7
2
15
11
3
49
203
82
20
7
Highest AQI recorded in
January151AQI
Lowest AQI recorded in
July52AQI
202294AQI
4
9
17
6
14
1
3
14
13
1
24
6
24
7
10
20
9
13
1
18
10
6
14
11
22
8
1
10
14
6
30
169
92
25
Highest AQI recorded in
January148AQI
Lowest AQI recorded in
August47AQI
2021101AQI
2
17
12
7
17
4
18
12
1
18
12
1
24
6
1
21
8
2
28
1
1
17
3
3
21
6
22
6
3
14
8
8
5
13
13
8
197
109
41
Highest AQI recorded in
January140AQI
Lowest AQI recorded in
July70AQI
202094AQI
2
5
4
2
12
9
10
8
4
26
4
25
2
5
22
4
4
19
7
4
13
13
1
14
16
2
8
21
23
148
71
24
Highest AQI recorded in
December154AQI
Lowest AQI recorded in
June68AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2021(Avg.)
101AQILeast Polluted Year Recorded
2024(Avg.)
87AQIChangan's annual 2025 AQI (92) shows an average percentage change of -0.1% (improved AQI) compared to previous years: 2020 (94), 2021 (101), 2022 (94), 2023 (88), 2024 (87).
