Hengyang Chemical Plant, Hengyang, 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
Hengyang Chemical Plant, Hengyang, Hunan, China
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
19th Aug 2023
122AQILowest AQI recorded on
1st Aug 2024
16AQISame Day Analysis (2nd August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 62 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
Hengyang Chemical Plant, Hengyang, Hunan, China
AQI
Day
Night
.
5 AM2nd Aug 2025
7 PM
4 AM3rd Aug 2025
Day time
Avg. Highest Time
2PM2nd Aug
75AQI
Avg. Lowest Time
7AM2nd Aug
58AQI
Night time
Avg. Highest Time
10PM2nd Aug
69AQI
Avg. Lowest Time
2AM3rd Aug
58AQI
In the last 24 hours,
Hengyang Chemical Plant's AQI reached its highest point of 75 at 2 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
Hengyang Chemical Plant, Hengyang, 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 2025485 AMAQI
4th Jul 2025466 AMAQI
4th Jul 2025467 AMAQI
4th Jul 2025558 AMAQI
4th Jul 2025599 AMAQI
4th Jul 20255310 AMAQI
4th Jul 20255211 AMAQI
4th Jul 20255012 PMAQI
4th Jul 2025491 PMAQI
4th Jul 2025502 PMAQI
4th Jul 2025493 PMAQI
4th Jul 2025484 PMAQI
4th Jul 2025485 PMAQI
4th Jul 2025486 PMAQI
4th Jul 2025527 PMAQI
4th Jul 2025528 PMAQI
4th Jul 2025539 PMAQI
4th Jul 20255310 PMAQI
4th Jul 20255311 PMAQI
5th Jul 20255312 AMAQI
5th Jul 2025491 AMAQI
5th Jul 2025482 AMAQI
5th Jul 2025483 AMAQI
5th Jul 2025504 AMAQI
32°C27/37°C
5th Jul 2025505 AMAQI
5th Jul 2025516 AMAQI
5th Jul 2025517 AMAQI
5th Jul 2025668 AMAQI
5th Jul 2025749 AMAQI
5th Jul 20257810 AMAQI
5th Jul 20257711 AMAQI
5th Jul 20257212 PMAQI
5th Jul 2025701 PMAQI
5th Jul 2025682 PMAQI
5th Jul 2025663 PMAQI
5th Jul 2025664 PMAQI
5th Jul 2025655 PMAQI
5th Jul 2025666 PMAQI
5th Jul 2025697 PMAQI
5th Jul 2025578 PMAQI
5th Jul 2025589 PMAQI
5th Jul 20255710 PMAQI
5th Jul 20255811 PMAQI
6th Jul 20255812 AMAQI
6th Jul 2025521 AMAQI
6th Jul 2025522 AMAQI
6th Jul 2025523 AMAQI
6th Jul 2025544 AMAQI
32°C28/38°C
6th Jul 2025545 AMAQI
6th Jul 2025546 AMAQI
6th Jul 2025547 AMAQI
6th Jul 2025678 AMAQI
6th Jul 2025859 AMAQI
6th Jul 20258410 AMAQI
6th Jul 20258711 AMAQI
6th Jul 20257912 PMAQI
6th Jul 2025801 PMAQI
6th Jul 2025792 PMAQI
6th Jul 2025773 PMAQI
6th Jul 2025744 PMAQI
6th Jul 2025725 PMAQI
6th Jul 2025696 PMAQI
6th Jul 2025697 PMAQI
6th Jul 2025638 PMAQI
6th Jul 2025649 PMAQI
6th Jul 20256410 PMAQI
6th Jul 20256411 PMAQI
7th Jul 20256312 AMAQI
7th Jul 2025571 AMAQI
7th Jul 2025572 AMAQI
7th Jul 2025583 AMAQI
7th Jul 2025614 AMAQI
31°C27/38°C
7th Jul 2025615 AMAQI
7th Jul 2025616 AMAQI
7th Jul 2025617 AMAQI
7th Jul 2025888 AMAQI
7th Jul 2025979 AMAQI
7th Jul 20259810 AMAQI
7th Jul 20259511 AMAQI
7th Jul 20258612 PMAQI
7th Jul 2025841 PMAQI
7th Jul 2025812 PMAQI
7th Jul 2025783 PMAQI
7th Jul 2025794 PMAQI
7th Jul 2025785 PMAQI
7th Jul 2025726 PMAQI
7th Jul 2025687 PMAQI
7th Jul 2025648 PMAQI
7th Jul 2025679 PMAQI
7th Jul 20256610 PMAQI
7th Jul 20256811 PMAQI
8th Jul 20256712 AMAQI
8th Jul 2025621 AMAQI
8th Jul 2025612 AMAQI
8th Jul 2025623 AMAQI
8th Jul 2025644 AMAQI
30°C25/37°C
8th Jul 2025645 AMAQI
8th Jul 2025646 AMAQI
8th Jul 2025647 AMAQI
8th Jul 2025808 AMAQI
8th Jul 2025879 AMAQI
8th Jul 20259310 AMAQI
8th Jul 20259011 AMAQI
8th Jul 20258312 PMAQI
8th Jul 2025781 PMAQI
8th Jul 2025782 PMAQI
8th Jul 2025773 PMAQI
8th Jul 2025774 PMAQI
8th Jul 2025775 PMAQI
8th Jul 2025666 PMAQI
8th Jul 2025647 PMAQI
8th Jul 2025658 PMAQI
8th Jul 2025679 PMAQI
8th Jul 20256710 PMAQI
8th Jul 20256511 PMAQI
9th Jul 20256512 AMAQI
9th Jul 2025641 AMAQI
9th Jul 2025642 AMAQI
9th Jul 2025653 AMAQI
9th Jul 2025684 AMAQI
32°C27/37°C
9th Jul 2025685 AMAQI
9th Jul 2025686 AMAQI
9th Jul 2025687 AMAQI
9th Jul 2025688 AMAQI
9th Jul 2025729 AMAQI
9th Jul 20257410 AMAQI
9th Jul 20257911 AMAQI
9th Jul 20257812 PMAQI
9th Jul 2025841 PMAQI
9th Jul 2025782 PMAQI
9th Jul 2025743 PMAQI
9th Jul 2025754 PMAQI
9th Jul 2025765 PMAQI
9th Jul 2025766 PMAQI
9th Jul 2025747 PMAQI
9th Jul 2025668 PMAQI
9th Jul 2025679 PMAQI
9th Jul 20256710 PMAQI
9th Jul 20256711 PMAQI
10th Jul 20256712 AMAQI
10th Jul 2025661 AMAQI
10th Jul 2025662 AMAQI
10th Jul 2025663 AMAQI
10th Jul 2025684 AMAQI
31°C27/36°C
10th Jul 2025675 AMAQI
10th Jul 2025676 AMAQI
10th Jul 2025677 AMAQI
10th Jul 2025568 AMAQI
10th Jul 2025449 AMAQI
10th Jul 20254810 AMAQI
10th Jul 20254911 AMAQI
10th Jul 20255612 PMAQI
10th Jul 2025561 PMAQI
10th Jul 2025562 PMAQI
10th Jul 2025553 PMAQI
10th Jul 2025564 PMAQI
10th Jul 2025555 PMAQI
10th Jul 2025536 PMAQI
10th Jul 2025577 PMAQI
10th Jul 2025628 PMAQI
10th Jul 2025639 PMAQI
10th Jul 20256410 PMAQI
10th Jul 20256411 PMAQI
11th Jul 20256412 AMAQI
11th Jul 2025651 AMAQI
11th Jul 2025662 AMAQI
11th Jul 2025663 AMAQI
11th Jul 2025664 AMAQI
30°C26/35°C
11th Jul 2025665 AMAQI
11th Jul 2025656 AMAQI
11th Jul 2025667 AMAQI
11th Jul 2025528 AMAQI
11th Jul 2025529 AMAQI
11th Jul 20255810 AMAQI
11th Jul 20255911 AMAQI
11th Jul 20256012 PMAQI
11th Jul 2025601 PMAQI
11th Jul 2025592 PMAQI
11th Jul 2025603 PMAQI
11th Jul 2025584 PMAQI
11th Jul 2025585 PMAQI
11th Jul 2025606 PMAQI
11th Jul 2025617 PMAQI
11th Jul 2025638 PMAQI
11th Jul 2025659 PMAQI
11th Jul 20256410 PMAQI
11th Jul 20256311 PMAQI
12th Jul 20256412 AMAQI
12th Jul 2025641 AMAQI
12th Jul 2025642 AMAQI
12th Jul 2025643 AMAQI
12th Jul 2025634 AMAQI
30°C26/35°C
12th Jul 2025635 AMAQI
12th Jul 2025626 AMAQI
12th Jul 2025637 AMAQI
12th Jul 2025618 AMAQI
12th Jul 2025589 AMAQI
12th Jul 20255910 AMAQI
12th Jul 20255911 AMAQI
12th Jul 20256112 PMAQI
12th Jul 2025621 PMAQI
12th Jul 2025622 PMAQI
12th Jul 2025593 PMAQI
12th Jul 2025624 PMAQI
12th Jul 2025615 PMAQI
12th Jul 2025606 PMAQI
12th Jul 2025587 PMAQI
12th Jul 2025628 PMAQI
12th Jul 2025629 PMAQI
12th Jul 20256210 PMAQI
12th Jul 20256211 PMAQI
13th Jul 20256212 AMAQI
13th Jul 2025631 AMAQI
13th Jul 2025622 AMAQI
13th Jul 2025633 AMAQI
13th Jul 2025624 AMAQI
28°C25/33°C
13th Jul 2025635 AMAQI
13th Jul 2025636 AMAQI
13th Jul 2025637 AMAQI
13th Jul 2025658 AMAQI
13th Jul 2025679 AMAQI
13th Jul 20257010 AMAQI
13th Jul 20257011 AMAQI
13th Jul 20256412 PMAQI
13th Jul 2025631 PMAQI
13th Jul 2025632 PMAQI
13th Jul 2025603 PMAQI
13th Jul 2025554 PMAQI
13th Jul 2025545 PMAQI
13th Jul 2025546 PMAQI
13th Jul 2025567 PMAQI
13th Jul 2025618 PMAQI
13th Jul 2025619 PMAQI
13th Jul 20256210 PMAQI
13th Jul 20256211 PMAQI
14th Jul 20256212 AMAQI
14th Jul 2025621 AMAQI
14th Jul 2025632 AMAQI
14th Jul 2025623 AMAQI
14th Jul 2025634 AMAQI
28°C25/33°C
14th Jul 2025635 AMAQI
14th Jul 2025636 AMAQI
14th Jul 2025637 AMAQI
14th Jul 2025688 AMAQI
14th Jul 2025689 AMAQI
14th Jul 20257710 AMAQI
14th Jul 20258311 AMAQI
14th Jul 20258012 PMAQI
14th Jul 2025721 PMAQI
14th Jul 2025722 PMAQI
14th Jul 2025623 PMAQI
14th Jul 2025604 PMAQI
14th Jul 2025595 PMAQI
14th Jul 2025586 PMAQI
14th Jul 2025617 PMAQI
14th Jul 2025638 PMAQI
14th Jul 2025639 PMAQI
14th Jul 20256210 PMAQI
14th Jul 20256111 PMAQI
15th Jul 20256112 AMAQI
15th Jul 2025621 AMAQI
15th Jul 2025622 AMAQI
15th Jul 2025623 AMAQI
15th Jul 2025624 AMAQI
30°C26/34°C
15th Jul 2025635 AMAQI
15th Jul 2025626 AMAQI
15th Jul 2025637 AMAQI
15th Jul 2025618 AMAQI
15th Jul 2025649 AMAQI
15th Jul 20256110 AMAQI
15th Jul 20255411 AMAQI
15th Jul 20255712 PMAQI
15th Jul 2025561 PMAQI
15th Jul 2025562 PMAQI
15th Jul 2025543 PMAQI
15th Jul 2025534 PMAQI
15th Jul 2025525 PMAQI
15th Jul 2025526 PMAQI
15th Jul 2025547 PMAQI
15th Jul 2025608 PMAQI
15th Jul 2025609 PMAQI
15th Jul 20256010 PMAQI
15th Jul 20256011 PMAQI
16th Jul 20256012 AMAQI
16th Jul 2025601 AMAQI
16th Jul 2025622 AMAQI
16th Jul 2025613 AMAQI
16th Jul 2025614 AMAQI
31°C26/36°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 20255711 AMAQI
16th Jul 20255812 PMAQI
16th Jul 2025571 PMAQI
16th Jul 2025582 PMAQI
16th Jul 2025563 PMAQI
16th Jul 2025564 PMAQI
16th Jul 2025565 PMAQI
16th Jul 2025566 PMAQI
16th Jul 2025587 PMAQI
16th Jul 2025598 PMAQI
16th Jul 2025609 PMAQI
16th Jul 20256010 PMAQI
16th Jul 20256011 PMAQI
17th Jul 20256012 AMAQI
17th Jul 2025611 AMAQI
17th Jul 2025602 AMAQI
17th Jul 2025603 AMAQI
17th Jul 2025604 AMAQI
32°C28/37°C
17th Jul 2025595 AMAQI
17th Jul 2025606 AMAQI
17th Jul 2025607 AMAQI
17th Jul 2025568 AMAQI
17th Jul 2025599 AMAQI
17th Jul 20256010 AMAQI
17th Jul 20255811 AMAQI
17th Jul 20255712 PMAQI
17th Jul 2025571 PMAQI
17th Jul 2025582 PMAQI
17th Jul 2025583 PMAQI
17th Jul 2025564 PMAQI
17th Jul 2025565 PMAQI
17th Jul 2025566 PMAQI
17th Jul 2025587 PMAQI
17th Jul 2025608 PMAQI
17th Jul 2025619 PMAQI
17th Jul 20256210 PMAQI
17th Jul 20256111 PMAQI
18th Jul 20256012 AMAQI
18th Jul 2025601 AMAQI
18th Jul 2025602 AMAQI
18th Jul 2025603 AMAQI
18th Jul 2025604 AMAQI
32°C28/37°C
18th Jul 2025605 AMAQI
18th Jul 2025606 AMAQI
18th Jul 2025607 AMAQI
18th Jul 2025678 AMAQI
18th Jul 2025679 AMAQI
18th Jul 20256410 AMAQI
18th Jul 20256111 AMAQI
18th Jul 20256412 PMAQI
18th Jul 2025681 PMAQI
18th Jul 2025672 PMAQI
18th Jul 2025653 PMAQI
18th Jul 2025704 PMAQI
18th Jul 2025765 PMAQI
18th Jul 2025726 PMAQI
18th Jul 2025707 PMAQI
18th Jul 2025618 PMAQI
18th Jul 2025619 PMAQI
18th Jul 20256310 PMAQI
18th Jul 20256211 PMAQI
19th Jul 20256112 AMAQI
19th Jul 2025601 AMAQI
19th Jul 2025602 AMAQI
19th Jul 2025603 AMAQI
19th Jul 2025614 AMAQI
31°C26/37°C
19th Jul 2025615 AMAQI
19th Jul 2025606 AMAQI
19th Jul 2025617 AMAQI
19th Jul 2025678 AMAQI
19th Jul 2025689 AMAQI
19th Jul 20256710 AMAQI
19th Jul 20256811 AMAQI
19th Jul 20256812 PMAQI
19th Jul 2025671 PMAQI
19th Jul 2025662 PMAQI
19th Jul 2025663 PMAQI
19th Jul 2025664 PMAQI
19th Jul 2025665 PMAQI
19th Jul 2025646 PMAQI
19th Jul 2025667 PMAQI
19th Jul 2025638 PMAQI
19th Jul 2025639 PMAQI
19th Jul 20256210 PMAQI
19th Jul 20256211 PMAQI
20th Jul 20256212 AMAQI
20th Jul 2025621 AMAQI
20th Jul 2025622 AMAQI
20th Jul 2025623 AMAQI
20th Jul 2025624 AMAQI
30°C26/36°C
20th Jul 2025625 AMAQI
20th Jul 2025626 AMAQI
20th Jul 2025627 AMAQI
20th Jul 2025628 AMAQI
20th Jul 2025589 AMAQI
20th Jul 20255610 AMAQI
20th Jul 20255811 AMAQI
20th Jul 20255212 PMAQI
20th Jul 2025521 PMAQI
20th Jul 2025492 PMAQI
20th Jul 2025523 PMAQI
20th Jul 2025474 PMAQI
20th Jul 2025475 PMAQI
20th Jul 2025476 PMAQI
20th Jul 2025537 PMAQI
20th Jul 2025598 PMAQI
20th Jul 2025589 PMAQI
20th Jul 20256010 PMAQI
20th Jul 20255811 PMAQI
21st Jul 20255812 AMAQI
21st Jul 2025621 AMAQI
21st Jul 2025622 AMAQI
21st Jul 2025623 AMAQI
21st Jul 2025614 AMAQI
29°C26/34°C
21st Jul 2025605 AMAQI
21st Jul 2025616 AMAQI
21st Jul 2025617 AMAQI
21st Jul 2025448 AMAQI
21st Jul 2025429 AMAQI
21st Jul 20253810 AMAQI
21st Jul 20253611 AMAQI
21st Jul 20254212 PMAQI
21st Jul 2025411 PMAQI
21st Jul 2025432 PMAQI
21st Jul 2025403 PMAQI
21st Jul 2025394 PMAQI
21st Jul 2025395 PMAQI
21st Jul 2025436 PMAQI
21st Jul 2025547 PMAQI
21st Jul 2025568 PMAQI
21st Jul 2025569 PMAQI
21st Jul 20255710 PMAQI
21st Jul 20255611 PMAQI
22nd Jul 20255612 AMAQI
22nd Jul 2025591 AMAQI
22nd Jul 2025602 AMAQI
22nd Jul 2025603 AMAQI
22nd Jul 2025584 AMAQI
29°C26/33°C
22nd Jul 2025585 AMAQI
22nd Jul 2025586 AMAQI
22nd Jul 2025587 AMAQI
22nd Jul 2025338 AMAQI
22nd Jul 2025269 AMAQI
22nd Jul 20253210 AMAQI
22nd Jul 20253611 AMAQI
22nd Jul 20254512 PMAQI
22nd Jul 2025461 PMAQI
22nd Jul 2025512 PMAQI
22nd Jul 2025443 PMAQI
22nd Jul 2025364 PMAQI
22nd Jul 2025365 PMAQI
22nd Jul 2025376 PMAQI
22nd Jul 2025397 PMAQI
22nd Jul 2025548 PMAQI
22nd Jul 2025549 PMAQI
22nd Jul 20255410 PMAQI
22nd Jul 20255311 PMAQI
23rd Jul 20255412 AMAQI
23rd Jul 2025581 AMAQI
23rd Jul 2025582 AMAQI
23rd Jul 2025563 AMAQI
23rd Jul 2025564 AMAQI
28°C26/32°C
23rd Jul 2025555 AMAQI
23rd Jul 2025556 AMAQI
23rd Jul 2025557 AMAQI
23rd Jul 2025278 AMAQI
23rd Jul 2025189 AMAQI
23rd Jul 20252410 AMAQI
23rd Jul 20253411 AMAQI
23rd Jul 20254212 PMAQI
23rd Jul 2025411 PMAQI
23rd Jul 2025382 PMAQI
23rd Jul 2025393 PMAQI
23rd Jul 2025424 PMAQI
23rd Jul 2025405 PMAQI
23rd Jul 2025376 PMAQI
23rd Jul 2025447 PMAQI
23rd Jul 2025538 PMAQI
23rd Jul 2025539 PMAQI
23rd Jul 20255210 PMAQI
23rd Jul 20255211 PMAQI
24th Jul 20255212 AMAQI
24th Jul 2025531 AMAQI
24th Jul 2025542 AMAQI
24th Jul 2025553 AMAQI
24th Jul 2025544 AMAQI
28°C25/33°C
24th Jul 2025545 AMAQI
24th Jul 2025536 AMAQI
24th Jul 2025537 AMAQI
24th Jul 2025518 AMAQI
24th Jul 2025529 AMAQI
24th Jul 20256110 AMAQI
24th Jul 20256011 AMAQI
24th Jul 20255012 PMAQI
24th Jul 2025521 PMAQI
24th Jul 2025492 PMAQI
24th Jul 2025513 PMAQI
24th Jul 2025524 PMAQI
24th Jul 2025525 PMAQI
24th Jul 2025516 PMAQI
24th Jul 2025517 PMAQI
24th Jul 2025548 PMAQI
24th Jul 2025559 PMAQI
24th Jul 20255510 PMAQI
24th Jul 20255611 PMAQI
25th Jul 20255312 AMAQI
25th Jul 2025531 AMAQI
25th Jul 2025522 AMAQI
25th Jul 2025543 AMAQI
25th Jul 2025524 AMAQI
29°C25/34°C
25th Jul 2025535 AMAQI
25th Jul 2025536 AMAQI
25th Jul 2025537 AMAQI
25th Jul 2025538 AMAQI
25th Jul 2025529 AMAQI
25th Jul 20255810 AMAQI
25th Jul 20255511 AMAQI
25th Jul 20255412 PMAQI
25th Jul 2025541 PMAQI
25th Jul 2025532 PMAQI
25th Jul 2025543 PMAQI
25th Jul 2025544 PMAQI
25th Jul 2025545 PMAQI
25th Jul 2025546 PMAQI
25th Jul 2025547 PMAQI
25th Jul 2025548 PMAQI
25th Jul 2025559 PMAQI
25th Jul 20255510 PMAQI
25th Jul 20255611 PMAQI
26th Jul 20255512 AMAQI
26th Jul 2025531 AMAQI
26th Jul 2025532 AMAQI
26th Jul 2025533 AMAQI
26th Jul 2025534 AMAQI
30°C26/36°C
26th Jul 2025535 AMAQI
26th Jul 2025536 AMAQI
26th Jul 2025547 AMAQI
26th Jul 2025648 AMAQI
26th Jul 2025689 AMAQI
26th Jul 20256710 AMAQI
26th Jul 20256611 AMAQI
26th Jul 20256412 PMAQI
26th Jul 2025651 PMAQI
26th Jul 2025622 PMAQI
26th Jul 2025603 PMAQI
26th Jul 2025604 PMAQI
26th Jul 2025555 PMAQI
26th Jul 2025566 PMAQI
26th Jul 2025547 PMAQI
26th Jul 2025568 PMAQI
26th Jul 2025569 PMAQI
26th Jul 20255410 PMAQI
26th Jul 20255411 PMAQI
27th Jul 20255412 AMAQI
27th Jul 2025541 AMAQI
27th Jul 2025542 AMAQI
27th Jul 2025543 AMAQI
27th Jul 2025554 AMAQI
31°C26/37°C
27th Jul 2025555 AMAQI
27th Jul 2025556 AMAQI
27th Jul 2025557 AMAQI
27th Jul 2025578 AMAQI
27th Jul 2025649 AMAQI
27th Jul 20256310 AMAQI
27th Jul 20255211 AMAQI
27th Jul 20255312 PMAQI
27th Jul 2025541 PMAQI
27th Jul 2025562 PMAQI
27th Jul 2025583 PMAQI
27th Jul 2025564 PMAQI
27th Jul 2025545 PMAQI
27th Jul 2025566 PMAQI
27th Jul 2025547 PMAQI
27th Jul 2025548 PMAQI
27th Jul 2025549 PMAQI
27th Jul 20255410 PMAQI
27th Jul 20255311 PMAQI
28th Jul 20255412 AMAQI
28th Jul 2025541 AMAQI
28th Jul 2025542 AMAQI
28th Jul 2025543 AMAQI
28th Jul 2025554 AMAQI
29°C26/33°C
28th Jul 2025555 AMAQI
28th Jul 2025556 AMAQI
28th Jul 2025547 AMAQI
28th Jul 2025548 AMAQI
28th Jul 2025589 AMAQI
28th Jul 20256110 AMAQI
28th Jul 20256011 AMAQI
28th Jul 20255712 PMAQI
28th Jul 2025581 PMAQI
28th Jul 2025602 PMAQI
28th Jul 2025573 PMAQI
28th Jul 2025544 PMAQI
28th Jul 2025545 PMAQI
28th Jul 2025526 PMAQI
28th Jul 2025547 PMAQI
28th Jul 2025558 PMAQI
28th Jul 2025569 PMAQI
28th Jul 20255610 PMAQI
28th Jul 20255511 PMAQI
29th Jul 20255412 AMAQI
29th Jul 2025551 AMAQI
29th Jul 2025542 AMAQI
29th Jul 2025543 AMAQI
29th Jul 2025554 AMAQI
29°C25/33°C
29th Jul 2025555 AMAQI
29th Jul 2025546 AMAQI
29th Jul 2025557 AMAQI
29th Jul 2025538 AMAQI
29th Jul 2025549 AMAQI
29th Jul 20255110 AMAQI
29th Jul 20255211 AMAQI
29th Jul 20255512 PMAQI
29th Jul 2025561 PMAQI
29th Jul 2025572 PMAQI
29th Jul 2025603 PMAQI
29th Jul 2025604 PMAQI
29th Jul 2025585 PMAQI
29th Jul 2025566 PMAQI
29th Jul 2025567 PMAQI
29th Jul 2025558 PMAQI
29th Jul 2025569 PMAQI
29th Jul 20255510 PMAQI
29th Jul 20255511 PMAQI
30th Jul 20255412 AMAQI
30th Jul 2025531 AMAQI
30th Jul 2025542 AMAQI
30th Jul 2025543 AMAQI
30th Jul 2025544 AMAQI
29°C26/33°C
30th Jul 2025555 AMAQI
30th Jul 2025546 AMAQI
30th Jul 2025547 AMAQI
30th Jul 2025588 AMAQI
30th Jul 2025579 AMAQI
30th Jul 20256110 AMAQI
30th Jul 20256311 AMAQI
30th Jul 20256212 PMAQI
30th Jul 2025541 PMAQI
30th Jul 2025522 PMAQI
30th Jul 2025523 PMAQI
30th Jul 2025534 PMAQI
30th Jul 2025505 PMAQI
30th Jul 2025486 PMAQI
30th Jul 2025497 PMAQI
30th Jul 2025538 PMAQI
30th Jul 2025549 PMAQI
30th Jul 20255310 PMAQI
30th Jul 20255311 PMAQI
31st Jul 20255212 AMAQI
31st Jul 2025541 AMAQI
31st Jul 2025552 AMAQI
31st Jul 2025553 AMAQI
31st Jul 2025554 AMAQI
29°C25/35°C
31st Jul 2025555 AMAQI
31st Jul 2025556 AMAQI
31st Jul 2025557 AMAQI
31st Jul 2025558 AMAQI
31st Jul 2025559 AMAQI
31st Jul 20255610 AMAQI
31st Jul 20256011 AMAQI
31st Jul 20256412 PMAQI
31st Jul 2025701 PMAQI
31st Jul 2025772 PMAQI
31st Jul 2025723 PMAQI
31st Jul 2025624 PMAQI
31st Jul 2025525 PMAQI
31st Jul 2025526 PMAQI
31st Jul 2025557 PMAQI
31st Jul 2025598 PMAQI
31st Jul 2025569 PMAQI
31st Jul 20255810 PMAQI
31st Jul 20255911 PMAQI
1st Aug 20255912 AMAQI
1st Aug 2025541 AMAQI
1st Aug 2025542 AMAQI
1st Aug 2025563 AMAQI
1st Aug 2025574 AMAQI
29°C25/35°C
1st Aug 2025565 AMAQI
1st Aug 2025566 AMAQI
1st Aug 2025567 AMAQI
1st Aug 2025648 AMAQI
1st Aug 2025659 AMAQI
1st Aug 20256810 AMAQI
1st Aug 20256311 AMAQI
1st Aug 20256112 PMAQI
1st Aug 2025641 PMAQI
1st Aug 2025642 PMAQI
1st Aug 2025663 PMAQI
1st Aug 2025664 PMAQI
1st Aug 2025625 PMAQI
1st Aug 2025606 PMAQI
1st Aug 2025627 PMAQI
1st Aug 2025668 PMAQI
1st Aug 2025689 PMAQI
1st Aug 20256910 PMAQI
1st Aug 20256811 PMAQI
2nd Aug 20256512 AMAQI
2nd Aug 2025561 AMAQI
2nd Aug 2025572 AMAQI
2nd Aug 2025583 AMAQI
2nd Aug 2025584 AMAQI
30°C26/35°C
2nd Aug 2025595 AMAQI
2nd Aug 2025586 AMAQI
2nd Aug 2025587 AMAQI
2nd Aug 2025728 AMAQI
2nd Aug 2025749 AMAQI
2nd Aug 20257010 AMAQI
2nd Aug 20257011 AMAQI
2nd Aug 20257112 PMAQI
2nd Aug 2025681 PMAQI
2nd Aug 2025752 PMAQI
2nd Aug 2025693 PMAQI
2nd Aug 2025664 PMAQI
2nd Aug 2025705 PMAQI
2nd Aug 2025666 PMAQI
2nd Aug 2025657 PMAQI
2nd Aug 2025648 PMAQI
2nd Aug 2025669 PMAQI
2nd Aug 20256910 PMAQI
2nd Aug 20256811 PMAQI
3rd Aug 20256612 AMAQI
3rd Aug 2025581 AMAQI
3rd Aug 2025582 AMAQI
3rd Aug 2025623 AMAQI
3rd Aug 2025624 AMAQI
31°C26/36°C
3rd Aug 2025625 AMAQI
5 AM3rd Aug 2025626 AMAQI
3rd Aug 2025627 AMAQI
3rd Aug 2025568 AMAQI
3rd Aug 2025519 AMAQI
3rd Aug 20255410 AMAQI
3rd Aug 20255411 AMAQI
3rd Aug 20255812 PMAQI
12 PM3rd Aug 2025601 PMAQI
3rd Aug 2025582 PMAQI
3rd Aug 2025503 PMAQI
3rd Aug 2025574 PMAQI
3rd Aug 2025515 PMAQI
3rd Aug 2025526 PMAQI
3rd Aug 2025567 PMAQI
7 PM12 AM
4 AM
--°C/°C
Day time
Avg. Highest Time
5 AM - 7 PM
59AQI
15 hours / Day
450 hours / Month
Avg. Lowest Time
5 AM - 7 PM
59AQI
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. 59), while the lowest AQI was between 5 AM to 7 PM (Avg. 59).
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
Hengyang Chemical Plant, Hengyang, Hunan, China
2025
7%
15
54%
115
28%
60
10%
21
1%
3
Total number of days with different AQI categories in last 215 days in 2025 (150 days remaining)
Good
15 DaysModerate
115 DaysPoor
60 DaysUnhealthy
21 DaysSevere
3 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 7%
Health Risk Level:
Extreme
In 2025, 7% 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
Hengyang Chemical Plant, Hengyang, 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
173AQI
173AQI
2nd January 2025
165AQI
165AQI
3rd January 2025
182AQI
182AQI
4th January 2025
188AQI
188AQI
5th January 2025
175AQI
175AQI
6th January 2025
167AQI
167AQI
7th January 2025
165AQI
165AQI
8th January 2025
151AQI
151AQI
9th January 2025
128AQI
128AQI
10th January 2025
131AQI
131AQI
11th January 2025
133AQI
133AQI
12th January 2025
140AQI
140AQI
13th January 2025
131AQI
131AQI
14th January 2025
144AQI
144AQI
15th January 2025
142AQI
142AQI
16th January 2025
124AQI
124AQI
17th January 2025
142AQI
142AQI
18th January 2025
150AQI
150AQI
19th January 2025
161AQI
161AQI
20th January 2025
163AQI
163AQI
21st January 2025
160AQI
160AQI
22nd January 2025
168AQI
168AQI
23rd January 2025
203AQI
203AQI
24th January 2025
226AQI
226AQI
25th January 2025
98AQI
98AQI
26th January 2025
110AQI
110AQI
27th January 2025
97AQI
97AQI
28th January 2025
120AQI
120AQI
29th January 2025
198AQI
198AQI
30th January 2025
152AQI
152AQI
31st January 2025
135AQI
135AQI
1st February 2025
110AQI
110AQI
2nd February 2025
96AQI
96AQI
3rd February 2025
118AQI
118AQI
4th February 2025
115AQI
115AQI
5th February 2025
140AQI
140AQI
6th February 2025
127AQI
127AQI
7th February 2025
121AQI
121AQI
8th February 2025
78AQI
78AQI
9th February 2025
93AQI
93AQI
10th February 2025
99AQI
99AQI
11th February 2025
124AQI
124AQI
12th February 2025
130AQI
130AQI
13th February 2025
152AQI
152AQI
14th February 2025
159AQI
159AQI
15th February 2025
157AQI
157AQI
16th February 2025
120AQI
120AQI
17th February 2025
126AQI
126AQI
18th February 2025
102AQI
102AQI
19th February 2025
92AQI
92AQI
20th February 2025
72AQI
72AQI
21st February 2025
139AQI
139AQI
22nd February 2025
65AQI
65AQI
23rd February 2025
118AQI
118AQI
24th February 2025
129AQI
129AQI
25th February 2025
152AQI
152AQI
26th February 2025
154AQI
154AQI
27th February 2025
127AQI
127AQI
28th February 2025
104AQI
104AQI
1st March 2025
88AQI
88AQI
2nd March 2025
79AQI
79AQI
3rd March 2025
59AQI
59AQI
4th March 2025
71AQI
71AQI
5th March 2025
66AQI
66AQI
6th March 2025
103AQI
103AQI
7th March 2025
91AQI
91AQI
8th March 2025
100AQI
100AQI
9th March 2025
101AQI
101AQI
10th March 2025
101AQI
101AQI
11th March 2025
105AQI
105AQI
12th March 2025
100AQI
100AQI
13th March 2025
115AQI
115AQI
14th March 2025
66AQI
66AQI
15th March 2025
77AQI
77AQI
16th March 2025
79AQI
79AQI
17th March 2025
79AQI
79AQI
18th March 2025
79AQI
79AQI
19th March 2025
80AQI
80AQI
20th March 2025
97AQI
97AQI
21st March 2025
111AQI
111AQI
22nd March 2025
108AQI
108AQI
23rd March 2025
141AQI
141AQI
24th March 2025
125AQI
125AQI
25th March 2025
149AQI
149AQI
26th March 2025
142AQI
142AQI
27th March 2025
144AQI
144AQI
28th March 2025
93AQI
93AQI
29th March 2025
93AQI
93AQI
30th March 2025
67AQI
67AQI
31st March 2025
91AQI
91AQI
1st April 2025
91AQI
91AQI
2nd April 2025
101AQI
101AQI
3rd April 2025
111AQI
111AQI
4th April 2025
142AQI
142AQI
5th April 2025
145AQI
145AQI
6th April 2025
142AQI
142AQI
7th April 2025
148AQI
148AQI
8th April 2025
134AQI
134AQI
9th April 2025
146AQI
146AQI
10th April 2025
115AQI
115AQI
11th April 2025
117AQI
117AQI
12th April 2025
263AQI
263AQI
13th April 2025
161AQI
161AQI
14th April 2025
153AQI
153AQI
15th April 2025
133AQI
133AQI
16th April 2025
130AQI
130AQI
17th April 2025
121AQI
121AQI
18th April 2025
111AQI
111AQI
19th April 2025
80AQI
80AQI
20th April 2025
83AQI
83AQI
21st April 2025
71AQI
71AQI
22nd April 2025
78AQI
78AQI
23rd April 2025
84AQI
84AQI
24th April 2025
64AQI
64AQI
25th April 2025
67AQI
67AQI
26th April 2025
74AQI
74AQI
27th April 2025
65AQI
65AQI
28th April 2025
82AQI
82AQI
29th April 2025
99AQI
99AQI
30th April 2025
90AQI
90AQI
1st May 2025
87AQI
87AQI
2nd May 2025
90AQI
90AQI
3rd May 2025
101AQI
101AQI
4th May 2025
105AQI
105AQI
5th May 2025
86AQI
86AQI
6th May 2025
96AQI
96AQI
7th May 2025
104AQI
104AQI
8th May 2025
80AQI
80AQI
9th May 2025
74AQI
74AQI
10th May 2025
82AQI
82AQI
11th May 2025
81AQI
81AQI
12th May 2025
93AQI
93AQI
13th May 2025
94AQI
94AQI
14th May 2025
93AQI
93AQI
15th May 2025
106AQI
106AQI
16th May 2025
73AQI
73AQI
17th May 2025
77AQI
77AQI
18th May 2025
66AQI
66AQI
19th May 2025
65AQI
65AQI
20th May 2025
55AQI
55AQI
21st May 2025
59AQI
59AQI
22nd May 2025
57AQI
57AQI
23rd May 2025
66AQI
66AQI
24th May 2025
89AQI
89AQI
25th May 2025
94AQI
94AQI
26th May 2025
93AQI
93AQI
27th May 2025
101AQI
101AQI
28th May 2025
65AQI
65AQI
29th May 2025
68AQI
68AQI
30th May 2025
63AQI
63AQI
31st May 2025
52AQI
52AQI
1st June 2025
56AQI
56AQI
2nd June 2025
61AQI
61AQI
3rd June 2025
72AQI
72AQI
4th June 2025
81AQI
81AQI
5th June 2025
83AQI
83AQI
6th June 2025
78AQI
78AQI
7th June 2025
68AQI
68AQI
8th June 2025
68AQI
68AQI
9th June 2025
78AQI
78AQI
10th June 2025
82AQI
82AQI
11th June 2025
78AQI
78AQI
12th June 2025
65AQI
65AQI
13th June 2025
67AQI
67AQI
14th June 2025
55AQI
55AQI
15th June 2025
51AQI
51AQI
16th June 2025
53AQI
53AQI
17th June 2025
47AQI
47AQI
18th June 2025
46AQI
46AQI
19th June 2025
46AQI
46AQI
20th June 2025
46AQI
46AQI
21st June 2025
49AQI
49AQI
22nd June 2025
52AQI
52AQI
23rd June 2025
55AQI
55AQI
24th June 2025
52AQI
52AQI
25th June 2025
57AQI
57AQI
26th June 2025
57AQI
57AQI
27th June 2025
50AQI
50AQI
28th June 2025
48AQI
48AQI
29th June 2025
49AQI
49AQI
30th June 2025
48AQI
48AQI
1st July 2025
45AQI
45AQI
2nd July 2025
41AQI
41AQI
3rd July 2025
42AQI
42AQI
4th July 2025
49AQI
49AQI
5th July 2025
59AQI
59AQI
6th July 2025
65AQI
65AQI
7th July 2025
70AQI
70AQI
8th July 2025
70AQI
70AQI
9th July 2025
70AQI
70AQI
10th July 2025
62AQI
62AQI
11th July 2025
62AQI
62AQI
12th July 2025
62AQI
62AQI
13th July 2025
62AQI
62AQI
14th July 2025
64AQI
64AQI
15th July 2025
59AQI
59AQI
16th July 2025
59AQI
59AQI
17th July 2025
59AQI
59AQI
18th July 2025
63AQI
63AQI
19th July 2025
63AQI
63AQI
20th July 2025
58AQI
58AQI
21st July 2025
53AQI
53AQI
22nd July 2025
50AQI
50AQI
23rd July 2025
48AQI
48AQI
24th July 2025
53AQI
53AQI
25th July 2025
54AQI
54AQI
26th July 2025
57AQI
57AQI
27th July 2025
55AQI
55AQI
28th July 2025
55AQI
55AQI
29th July 2025
55AQI
55AQI
30th July 2025
54AQI
54AQI
31st July 2025
58AQI
58AQI
1st August 2025
62AQI
62AQI
2nd August 2025
62AQI
62AQI
152AQI
119AQI
97AQI
113AQI
81AQI
60AQI
57AQI
62AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202597AQI
2
13
14
2
7
16
5
19
12
13
14
2
1
26
5
9
21
6
25
2
15
115
60
21
3
Highest AQI recorded in
January152AQI
Lowest AQI recorded in
July57AQI
202488AQI
1
4
7
18
1
3
11
9
4
2
3
11
15
2
2
22
6
6
14
9
2
20
10
31
30
1
21
4
5
9
19
3
3
6
15
6
14
17
120
92
99
52
3
Highest AQI recorded in
December147AQI
Lowest AQI recorded in
July23AQI
2023100AQI
1
3
10
16
1
1
4
11
12
10
14
7
7
16
7
4
17
8
2
8
18
4
8
22
1
4
26
1
6
20
4
2
12
17
1
4
15
6
2
5
16
5
3
44
157
108
48
4
Highest AQI recorded in
January150AQI
Lowest AQI recorded in
July59AQI
202294AQI
3
5
11
11
1
10
7
3
3
16
10
2
2
19
9
5
19
6
1
7
22
1
9
14
1
11
17
3
15
13
1
20
9
3
16
12
34
155
99
29
Highest AQI recorded in
December139AQI
Lowest AQI recorded in
July56AQI
202189AQI
1
10
18
2
2
10
14
2
9
15
7
12
18
24
7
9
20
1
2
29
2
18
1
23
6
1
5
15
9
2
3
9
12
6
5
12
12
2
68
170
72
41
4
Highest AQI recorded in
January153AQI
Lowest AQI recorded in
May41AQI
202066AQI
7
6
2
10
9
9
9
30
23
8
24
7
22
8
16
9
5
1
9
7
11
3
1
4
8
15
3
143
68
33
19
3
Highest AQI recorded in
December149AQI
Lowest AQI recorded in
June32AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2023(Avg.)
100AQILeast Polluted Year Recorded
2020(Avg.)
66AQIHengyang Chemical Plant's annual 2025 AQI (97) shows an average percentage change of 12.7% (worsened AQI) compared to previous years: 2020 (66), 2021 (89), 2022 (94), 2023 (100), 2024 (88).
