Dongpu Reservoir, Hefei, Anhui, 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
Dongpu Reservoir, Hefei, Anhui, China
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
28th Oct 2024
170AQILowest AQI recorded on
6th Oct 2022
20AQISame Day Analysis (7th October ):
On this day, AQI across the 4 years varied significantly: 2025 ranks 1st highest AQI at 127 of Poor air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 7th Oct - 8th Oct 2025
Dongpu Reservoir, Hefei, Anhui, China
AQI
Day
Night
.
6 AM7th Oct 2025
6 PM
5 AM8th Oct 2025
Day time
Avg. Highest Time
12AMNaNth undefined
AQI
Avg. Lowest Time
12AMNaNth undefined
AQI
Night time
Avg. Highest Time
8PM7th Oct
143AQI
Avg. Lowest Time
5AM8th Oct
76AQI
In the last 24 hours,
Dongpu Reservoir's AQI reached its highest point of 143 at 8 PM during the Night, while the lowest point, undefined, was recorded at 6 PM during the Night between 7th Oct and 8th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Dongpu Reservoir, Hefei, Anhui, China
SepOct
08th - 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 - 06th06th - 07th07th - 08th08th
Day
Night
8th Sep 2025706 AMAQI
8th Sep 2025707 AMAQI
8th Sep 2025808 AMAQI
8th Sep 2025859 AMAQI
8th Sep 20258410 AMAQI
8th Sep 20258411 AMAQI
8th Sep 20258412 PMAQI
8th Sep 2025771 PMAQI
8th Sep 2025602 PMAQI
8th Sep 2025583 PMAQI
8th Sep 2025584 PMAQI
8th Sep 2025625 PMAQI
8th Sep 2025466 PMAQI
8th Sep 2025547 PMAQI
8th Sep 2025598 PMAQI
8th Sep 2025609 PMAQI
8th Sep 20256010 PMAQI
8th Sep 20255911 PMAQI
9th Sep 20256212 AMAQI
9th Sep 2025671 AMAQI
9th Sep 2025692 AMAQI
9th Sep 2025703 AMAQI
9th Sep 2025684 AMAQI
9th Sep 2025715 AMAQI
26°C21/31°C
9th Sep 2025726 AMAQI
9th Sep 2025737 AMAQI
9th Sep 2025538 AMAQI
9th Sep 2025559 AMAQI
9th Sep 20255010 AMAQI
9th Sep 20254811 AMAQI
9th Sep 20255012 PMAQI
9th Sep 2025491 PMAQI
9th Sep 2025532 PMAQI
9th Sep 2025523 PMAQI
9th Sep 2025464 PMAQI
9th Sep 2025475 PMAQI
9th Sep 2025456 PMAQI
9th Sep 2025527 PMAQI
9th Sep 2025588 PMAQI
9th Sep 2025589 PMAQI
9th Sep 20256010 PMAQI
9th Sep 20255611 PMAQI
10th Sep 20256212 AMAQI
10th Sep 2025671 AMAQI
10th Sep 2025672 AMAQI
10th Sep 2025653 AMAQI
10th Sep 2025644 AMAQI
10th Sep 2025635 AMAQI
23°C22/24°C
10th Sep 2025646 AMAQI
10th Sep 2025667 AMAQI
10th Sep 2025548 AMAQI
10th Sep 2025599 AMAQI
10th Sep 20254310 AMAQI
10th Sep 20255511 AMAQI
10th Sep 20255612 PMAQI
10th Sep 2025621 PMAQI
10th Sep 2025552 PMAQI
10th Sep 2025613 PMAQI
10th Sep 2025534 PMAQI
10th Sep 2025605 PMAQI
10th Sep 2025566 PMAQI
10th Sep 2025567 PMAQI
10th Sep 2025578 PMAQI
10th Sep 2025599 PMAQI
10th Sep 20255910 PMAQI
10th Sep 20255911 PMAQI
11th Sep 20256012 AMAQI
11th Sep 2025631 AMAQI
11th Sep 2025622 AMAQI
11th Sep 2025613 AMAQI
11th Sep 2025604 AMAQI
11th Sep 2025615 AMAQI
25°C22/29°C
11th Sep 2025606 AMAQI
11th Sep 2025607 AMAQI
11th Sep 2025578 AMAQI
11th Sep 2025589 AMAQI
11th Sep 20255710 AMAQI
11th Sep 20255711 AMAQI
11th Sep 20255712 PMAQI
11th Sep 2025541 PMAQI
11th Sep 2025562 PMAQI
11th Sep 2025603 PMAQI
11th Sep 2025584 PMAQI
11th Sep 2025565 PMAQI
11th Sep 2025586 PMAQI
11th Sep 2025627 PMAQI
11th Sep 2025618 PMAQI
11th Sep 2025609 PMAQI
11th Sep 20256010 PMAQI
11th Sep 20255911 PMAQI
12th Sep 20255812 AMAQI
12th Sep 2025601 AMAQI
12th Sep 2025602 AMAQI
12th Sep 2025603 AMAQI
12th Sep 2025594 AMAQI
12th Sep 2025595 AMAQI
25°C23/29°C
12th Sep 2025596 AMAQI
12th Sep 2025597 AMAQI
12th Sep 2025548 AMAQI
12th Sep 2025569 AMAQI
12th Sep 20256010 AMAQI
12th Sep 20255911 AMAQI
12th Sep 20255812 PMAQI
12th Sep 2025531 PMAQI
12th Sep 2025482 PMAQI
12th Sep 2025383 PMAQI
12th Sep 2025324 PMAQI
12th Sep 2025385 PMAQI
12th Sep 2025486 PMAQI
12th Sep 2025497 PMAQI
12th Sep 2025548 PMAQI
12th Sep 2025539 PMAQI
12th Sep 20255310 PMAQI
12th Sep 20255411 PMAQI
13th Sep 20255812 AMAQI
13th Sep 2025581 AMAQI
13th Sep 2025592 AMAQI
13th Sep 2025583 AMAQI
13th Sep 2025584 AMAQI
13th Sep 2025585 AMAQI
25°C22/27°C
13th Sep 2025586 AMAQI
13th Sep 2025587 AMAQI
13th Sep 2025528 AMAQI
13th Sep 2025589 AMAQI
13th Sep 20255410 AMAQI
13th Sep 20255611 AMAQI
13th Sep 20255212 PMAQI
13th Sep 2025481 PMAQI
13th Sep 2025502 PMAQI
13th Sep 2025493 PMAQI
13th Sep 2025324 PMAQI
13th Sep 2025385 PMAQI
13th Sep 2025406 PMAQI
13th Sep 2025517 PMAQI
13th Sep 2025558 PMAQI
13th Sep 2025579 PMAQI
13th Sep 20256010 PMAQI
13th Sep 20255811 PMAQI
14th Sep 20255612 AMAQI
14th Sep 2025581 AMAQI
14th Sep 2025582 AMAQI
14th Sep 2025593 AMAQI
14th Sep 2025584 AMAQI
14th Sep 2025585 AMAQI
24°C21/28°C
14th Sep 2025586 AMAQI
14th Sep 2025587 AMAQI
14th Sep 2025678 AMAQI
14th Sep 2025729 AMAQI
14th Sep 20257010 AMAQI
14th Sep 20256011 AMAQI
14th Sep 20256012 PMAQI
14th Sep 2025571 PMAQI
14th Sep 2025562 PMAQI
14th Sep 2025563 PMAQI
14th Sep 2025534 PMAQI
14th Sep 2025425 PMAQI
14th Sep 2025436 PMAQI
14th Sep 2025427 PMAQI
14th Sep 2025508 PMAQI
14th Sep 2025559 PMAQI
14th Sep 20255210 PMAQI
14th Sep 20255511 PMAQI
15th Sep 20255512 AMAQI
15th Sep 2025581 AMAQI
15th Sep 2025582 AMAQI
15th Sep 2025583 AMAQI
15th Sep 2025584 AMAQI
15th Sep 2025585 AMAQI
25°C23/28°C
15th Sep 2025586 AMAQI
15th Sep 2025587 AMAQI
15th Sep 2025448 AMAQI
15th Sep 2025489 AMAQI
15th Sep 20255710 AMAQI
15th Sep 20254011 AMAQI
15th Sep 20255112 PMAQI
15th Sep 2025541 PMAQI
15th Sep 2025512 PMAQI
15th Sep 2025563 PMAQI
15th Sep 2025504 PMAQI
15th Sep 2025535 PMAQI
15th Sep 2025526 PMAQI
15th Sep 2025617 PMAQI
15th Sep 2025618 PMAQI
15th Sep 2025649 PMAQI
15th Sep 20256110 PMAQI
15th Sep 20256411 PMAQI
16th Sep 20255812 AMAQI
16th Sep 2025571 AMAQI
16th Sep 2025572 AMAQI
16th Sep 2025563 AMAQI
16th Sep 2025564 AMAQI
16th Sep 2025565 AMAQI
28°C24/33°C
16th Sep 2025566 AMAQI
16th Sep 2025567 AMAQI
16th Sep 2025688 AMAQI
16th Sep 2025749 AMAQI
16th Sep 20257010 AMAQI
16th Sep 20256811 AMAQI
16th Sep 20256712 PMAQI
16th Sep 2025621 PMAQI
16th Sep 2025562 PMAQI
16th Sep 2025543 PMAQI
16th Sep 2025544 PMAQI
16th Sep 2025565 PMAQI
16th Sep 2025636 PMAQI
16th Sep 2025667 PMAQI
16th Sep 2025678 PMAQI
16th Sep 2025719 PMAQI
16th Sep 20257010 PMAQI
16th Sep 20257211 PMAQI
17th Sep 20256812 AMAQI
17th Sep 2025561 AMAQI
17th Sep 2025572 AMAQI
17th Sep 2025583 AMAQI
17th Sep 2025594 AMAQI
17th Sep 2025605 AMAQI
30°C25/35°C
17th Sep 2025596 AMAQI
17th Sep 2025607 AMAQI
17th Sep 2025428 AMAQI
17th Sep 2025299 AMAQI
17th Sep 20252910 AMAQI
17th Sep 20253211 AMAQI
17th Sep 20254312 PMAQI
17th Sep 2025461 PMAQI
17th Sep 2025542 PMAQI
17th Sep 2025563 PMAQI
17th Sep 2025594 PMAQI
17th Sep 2025595 PMAQI
17th Sep 2025626 PMAQI
17th Sep 2025587 PMAQI
17th Sep 2025568 PMAQI
17th Sep 2025599 PMAQI
17th Sep 20255710 PMAQI
17th Sep 20255611 PMAQI
18th Sep 20255412 AMAQI
18th Sep 2025601 AMAQI
18th Sep 2025602 AMAQI
18th Sep 2025593 AMAQI
18th Sep 2025574 AMAQI
18th Sep 2025575 AMAQI
25°C21/29°C
18th Sep 2025576 AMAQI
18th Sep 2025587 AMAQI
18th Sep 2025478 AMAQI
18th Sep 2025349 AMAQI
18th Sep 20252710 AMAQI
18th Sep 20253011 AMAQI
18th Sep 20252712 PMAQI
18th Sep 2025251 PMAQI
18th Sep 2025242 PMAQI
18th Sep 2025273 PMAQI
18th Sep 2025284 PMAQI
18th Sep 2025345 PMAQI
18th Sep 2025366 PMAQI
18th Sep 2025507 PMAQI
18th Sep 2025558 PMAQI
18th Sep 2025529 PMAQI
18th Sep 20255310 PMAQI
18th Sep 20255211 PMAQI
19th Sep 20255212 AMAQI
19th Sep 2025581 AMAQI
19th Sep 2025582 AMAQI
19th Sep 2025563 AMAQI
19th Sep 2025544 AMAQI
19th Sep 2025545 AMAQI
22°C20/24°C
19th Sep 2025546 AMAQI
19th Sep 2025547 AMAQI
19th Sep 2025498 AMAQI
19th Sep 2025529 AMAQI
19th Sep 20255210 AMAQI
19th Sep 20255611 AMAQI
19th Sep 20256412 PMAQI
19th Sep 2025681 PMAQI
19th Sep 2025712 PMAQI
19th Sep 2025693 PMAQI
19th Sep 2025704 PMAQI
19th Sep 2025735 PMAQI
19th Sep 2025536 PMAQI
19th Sep 2025427 PMAQI
19th Sep 2025508 PMAQI
19th Sep 2025479 PMAQI
19th Sep 20255110 PMAQI
19th Sep 20255211 PMAQI
20th Sep 20254812 AMAQI
20th Sep 2025541 AMAQI
20th Sep 2025552 AMAQI
20th Sep 2025563 AMAQI
20th Sep 2025564 AMAQI
20th Sep 2025565 AMAQI
21°C17/25°C
20th Sep 2025566 AMAQI
20th Sep 2025567 AMAQI
20th Sep 2025348 AMAQI
20th Sep 2025459 AMAQI
20th Sep 20255110 AMAQI
20th Sep 20255111 AMAQI
20th Sep 20255412 PMAQI
20th Sep 2025511 PMAQI
20th Sep 2025532 PMAQI
20th Sep 2025533 PMAQI
20th Sep 2025534 PMAQI
20th Sep 2025545 PMAQI
20th Sep 2025546 PMAQI
20th Sep 2025567 PMAQI
20th Sep 2025588 PMAQI
20th Sep 2025569 PMAQI
20th Sep 20255610 PMAQI
20th Sep 20255911 PMAQI
21st Sep 20255912 AMAQI
21st Sep 2025561 AMAQI
21st Sep 2025542 AMAQI
21st Sep 2025543 AMAQI
21st Sep 2025544 AMAQI
21st Sep 2025545 AMAQI
20°C17/24°C
21st Sep 2025546 AMAQI
21st Sep 2025547 AMAQI
21st Sep 2025648 AMAQI
21st Sep 2025689 AMAQI
21st Sep 20256410 AMAQI
21st Sep 20256911 AMAQI
21st Sep 20256612 PMAQI
21st Sep 2025701 PMAQI
21st Sep 2025662 PMAQI
21st Sep 2025643 PMAQI
21st Sep 2025614 PMAQI
21st Sep 2025625 PMAQI
21st Sep 2025656 PMAQI
21st Sep 2025667 PMAQI
21st Sep 2025698 PMAQI
21st Sep 2025689 PMAQI
21st Sep 20256710 PMAQI
21st Sep 20257111 PMAQI
22nd Sep 20257012 AMAQI
22nd Sep 2025551 AMAQI
22nd Sep 2025562 AMAQI
22nd Sep 2025563 AMAQI
22nd Sep 2025584 AMAQI
22nd Sep 2025585 AMAQI
20°C19/22°C
22nd Sep 2025586 AMAQI
22nd Sep 2025587 AMAQI
22nd Sep 2025518 AMAQI
22nd Sep 2025559 AMAQI
22nd Sep 20255410 AMAQI
22nd Sep 20255011 AMAQI
22nd Sep 20254812 PMAQI
22nd Sep 2025601 PMAQI
22nd Sep 2025582 PMAQI
22nd Sep 2025563 PMAQI
22nd Sep 2025574 PMAQI
22nd Sep 2025565 PMAQI
22nd Sep 2025586 PMAQI
22nd Sep 2025627 PMAQI
22nd Sep 2025618 PMAQI
22nd Sep 2025629 PMAQI
22nd Sep 20256010 PMAQI
22nd Sep 20256011 PMAQI
23rd Sep 20256712 AMAQI
23rd Sep 2025601 AMAQI
23rd Sep 2025592 AMAQI
23rd Sep 2025593 AMAQI
23rd Sep 2025584 AMAQI
23rd Sep 2025585 AMAQI
24°C20/28°C
23rd Sep 2025586 AMAQI
23rd Sep 2025587 AMAQI
23rd Sep 2025708 AMAQI
23rd Sep 2025699 AMAQI
23rd Sep 20258410 AMAQI
23rd Sep 20258011 AMAQI
23rd Sep 20258012 PMAQI
23rd Sep 2025781 PMAQI
23rd Sep 2025802 PMAQI
23rd Sep 2025763 PMAQI
23rd Sep 2025824 PMAQI
23rd Sep 2025865 PMAQI
23rd Sep 20251056 PMAQI
23rd Sep 2025947 PMAQI
23rd Sep 2025778 PMAQI
23rd Sep 2025689 PMAQI
23rd Sep 20256610 PMAQI
23rd Sep 20256211 PMAQI
24th Sep 20255912 AMAQI
24th Sep 2025601 AMAQI
24th Sep 2025592 AMAQI
24th Sep 2025603 AMAQI
24th Sep 2025624 AMAQI
24th Sep 2025625 AMAQI
24°C20/30°C
24th Sep 2025626 AMAQI
24th Sep 2025627 AMAQI
24th Sep 2025298 AMAQI
24th Sep 2025169 AMAQI
24th Sep 20251610 AMAQI
24th Sep 20252211 AMAQI
24th Sep 20253012 PMAQI
24th Sep 2025321 PMAQI
24th Sep 2025282 PMAQI
24th Sep 2025303 PMAQI
24th Sep 2025324 PMAQI
24th Sep 2025435 PMAQI
24th Sep 2025426 PMAQI
24th Sep 2025477 PMAQI
24th Sep 2025578 PMAQI
24th Sep 2025589 PMAQI
24th Sep 20255610 PMAQI
24th Sep 20255611 PMAQI
25th Sep 20255612 AMAQI
25th Sep 2025601 AMAQI
25th Sep 2025602 AMAQI
25th Sep 2025583 AMAQI
25th Sep 2025564 AMAQI
25th Sep 2025575 AMAQI
20°C19/20°C
25th Sep 2025576 AMAQI
25th Sep 2025567 AMAQI
25th Sep 2025308 AMAQI
25th Sep 2025209 AMAQI
25th Sep 20252110 AMAQI
25th Sep 20252711 AMAQI
25th Sep 20253612 PMAQI
25th Sep 2025361 PMAQI
25th Sep 2025272 PMAQI
25th Sep 2025223 PMAQI
25th Sep 2025234 PMAQI
25th Sep 2025245 PMAQI
25th Sep 2025236 PMAQI
25th Sep 2025247 PMAQI
25th Sep 2025288 PMAQI
25th Sep 2025339 PMAQI
25th Sep 20253510 PMAQI
25th Sep 20253111 PMAQI
26th Sep 20252412 AMAQI
26th Sep 2025221 AMAQI
26th Sep 2025292 AMAQI
26th Sep 2025393 AMAQI
26th Sep 2025424 AMAQI
26th Sep 2025355 AMAQI
21°C20/23°C
26th Sep 2025356 AMAQI
26th Sep 2025457 AMAQI
26th Sep 2025508 AMAQI
26th Sep 2025529 AMAQI
26th Sep 20255410 AMAQI
26th Sep 20255611 AMAQI
26th Sep 20255712 PMAQI
26th Sep 2025551 PMAQI
26th Sep 2025542 PMAQI
26th Sep 2025343 PMAQI
26th Sep 2025284 PMAQI
26th Sep 2025225 PMAQI
26th Sep 2025266 PMAQI
26th Sep 2025377 PMAQI
26th Sep 2025528 PMAQI
26th Sep 2025569 PMAQI
26th Sep 20255610 PMAQI
26th Sep 20255211 PMAQI
27th Sep 20255312 AMAQI
27th Sep 2025501 AMAQI
27th Sep 2025422 AMAQI
27th Sep 2025423 AMAQI
27th Sep 2025524 AMAQI
27th Sep 2025545 AMAQI
23°C22/25°C
27th Sep 2025476 AMAQI
27th Sep 2025437 AMAQI
27th Sep 2025528 AMAQI
27th Sep 2025549 AMAQI
27th Sep 20255910 AMAQI
27th Sep 20256811 AMAQI
27th Sep 20256812 PMAQI
27th Sep 2025701 PMAQI
27th Sep 2025692 PMAQI
27th Sep 2025673 PMAQI
27th Sep 2025634 PMAQI
27th Sep 2025585 PMAQI
27th Sep 2025556 PMAQI
27th Sep 2025567 PMAQI
27th Sep 2025588 PMAQI
27th Sep 2025639 PMAQI
27th Sep 20256810 PMAQI
27th Sep 20256611 PMAQI
28th Sep 20255512 AMAQI
28th Sep 2025561 AMAQI
28th Sep 2025572 AMAQI
28th Sep 2025573 AMAQI
28th Sep 2025554 AMAQI
28th Sep 2025575 AMAQI
25°C23/30°C
28th Sep 2025606 AMAQI
28th Sep 2025607 AMAQI
28th Sep 2025578 AMAQI
28th Sep 2025619 AMAQI
28th Sep 20255910 AMAQI
28th Sep 20255811 AMAQI
28th Sep 20256212 PMAQI
28th Sep 2025621 PMAQI
28th Sep 2025592 PMAQI
28th Sep 2025503 PMAQI
28th Sep 2025444 PMAQI
28th Sep 2025445 PMAQI
28th Sep 2025466 PMAQI
28th Sep 2025517 PMAQI
28th Sep 2025558 PMAQI
28th Sep 2025549 PMAQI
28th Sep 20255710 PMAQI
28th Sep 20256211 PMAQI
29th Sep 20256612 AMAQI
29th Sep 2025631 AMAQI
29th Sep 2025592 AMAQI
29th Sep 2025643 AMAQI
29th Sep 2025664 AMAQI
29th Sep 2025665 AMAQI
25°C23/29°C
29th Sep 2025746 AMAQI
29th Sep 2025847 AMAQI
29th Sep 2025908 AMAQI
29th Sep 2025849 AMAQI
29th Sep 20258210 AMAQI
29th Sep 20257911 AMAQI
29th Sep 20257912 PMAQI
29th Sep 2025731 PMAQI
29th Sep 2025712 PMAQI
29th Sep 2025753 PMAQI
29th Sep 2025664 PMAQI
29th Sep 2025645 PMAQI
29th Sep 2025666 PMAQI
29th Sep 2025687 PMAQI
29th Sep 2025758 PMAQI
29th Sep 2025849 PMAQI
29th Sep 20257510 PMAQI
29th Sep 20257011 PMAQI
30th Sep 20258012 AMAQI
30th Sep 2025781 AMAQI
30th Sep 2025922 AMAQI
30th Sep 2025853 AMAQI
30th Sep 2025804 AMAQI
30th Sep 2025815 AMAQI
21°C20/22°C
30th Sep 2025896 AMAQI
30th Sep 2025747 AMAQI
30th Sep 2025628 AMAQI
30th Sep 2025699 AMAQI
30th Sep 20256210 AMAQI
30th Sep 20254511 AMAQI
30th Sep 20254212 PMAQI
30th Sep 2025371 PMAQI
30th Sep 2025282 PMAQI
30th Sep 2025293 PMAQI
30th Sep 2025274 PMAQI
30th Sep 2025345 PMAQI
30th Sep 2025366 PMAQI
30th Sep 2025317 PMAQI
30th Sep 2025338 PMAQI
30th Sep 2025389 PMAQI
30th Sep 20255410 PMAQI
30th Sep 20255311 PMAQI
1st Oct 20255312 AMAQI
1st Oct 2025451 AMAQI
1st Oct 2025522 AMAQI
1st Oct 2025543 AMAQI
1st Oct 2025534 AMAQI
1st Oct 2025525 AMAQI
22°C20/25°C
1st Oct 2025506 AMAQI
1st Oct 2025607 AMAQI
1st Oct 2025618 AMAQI
1st Oct 2025659 AMAQI
1st Oct 20257010 AMAQI
1st Oct 20256811 AMAQI
1st Oct 20256812 PMAQI
1st Oct 2025751 PMAQI
1st Oct 2025732 PMAQI
1st Oct 2025693 PMAQI
1st Oct 2025684 PMAQI
1st Oct 2025705 PMAQI
1st Oct 2025736 PMAQI
1st Oct 2025707 PMAQI
1st Oct 2025678 PMAQI
1st Oct 2025749 PMAQI
1st Oct 20257710 PMAQI
1st Oct 20258711 PMAQI
2nd Oct 20258312 AMAQI
2nd Oct 2025841 AMAQI
2nd Oct 2025852 AMAQI
2nd Oct 2025893 AMAQI
2nd Oct 2025844 AMAQI
2nd Oct 2025845 AMAQI
23°C21/26°C
2nd Oct 2025866 AMAQI
2nd Oct 2025887 AMAQI
2nd Oct 2025858 AMAQI
2nd Oct 2025849 AMAQI
2nd Oct 20258610 AMAQI
2nd Oct 20259011 AMAQI
2nd Oct 20259012 PMAQI
2nd Oct 2025861 PMAQI
2nd Oct 2025772 PMAQI
2nd Oct 2025803 PMAQI
2nd Oct 2025714 PMAQI
2nd Oct 2025705 PMAQI
2nd Oct 2025666 PMAQI
2nd Oct 2025507 PMAQI
2nd Oct 2025448 PMAQI
2nd Oct 2025499 PMAQI
2nd Oct 20254410 PMAQI
2nd Oct 20255111 PMAQI
3rd Oct 20254812 AMAQI
3rd Oct 2025491 AMAQI
3rd Oct 2025522 AMAQI
3rd Oct 2025523 AMAQI
3rd Oct 2025544 AMAQI
3rd Oct 2025545 AMAQI
23°C19/27°C
3rd Oct 2025566 AMAQI
3rd Oct 2025547 AMAQI
3rd Oct 2025568 AMAQI
3rd Oct 2025519 AMAQI
3rd Oct 20255010 AMAQI
3rd Oct 20255111 AMAQI
3rd Oct 20255612 PMAQI
3rd Oct 2025561 PMAQI
3rd Oct 2025552 PMAQI
3rd Oct 2025543 PMAQI
3rd Oct 2025504 PMAQI
3rd Oct 2025495 PMAQI
3rd Oct 2025406 PMAQI
3rd Oct 2025327 PMAQI
3rd Oct 2025408 PMAQI
3rd Oct 2025449 PMAQI
3rd Oct 20254410 PMAQI
3rd Oct 20255211 PMAQI
4th Oct 20255612 AMAQI
4th Oct 2025551 AMAQI
4th Oct 2025562 AMAQI
4th Oct 2025623 AMAQI
4th Oct 2025634 AMAQI
4th Oct 2025625 AMAQI
21°C18/23°C
4th Oct 2025616 AMAQI
4th Oct 2025577 AMAQI
4th Oct 2025548 AMAQI
4th Oct 2025579 AMAQI
4th Oct 20256310 AMAQI
4th Oct 20256611 AMAQI
4th Oct 20257612 PMAQI
4th Oct 2025711 PMAQI
4th Oct 2025722 PMAQI
4th Oct 2025733 PMAQI
4th Oct 2025714 PMAQI
4th Oct 2025715 PMAQI
4th Oct 2025736 PMAQI
4th Oct 2025747 PMAQI
4th Oct 2025848 PMAQI
4th Oct 20251069 PMAQI
4th Oct 202511710 PMAQI
4th Oct 202511911 PMAQI
5th Oct 202511812 AMAQI
5th Oct 20251111 AMAQI
5th Oct 20251142 AMAQI
5th Oct 20251113 AMAQI
5th Oct 20251164 AMAQI
5th Oct 20251155 AMAQI
23°C20/27°C
5th Oct 20251226 AMAQI
5th Oct 20251097 AMAQI
5th Oct 20251138 AMAQI
5th Oct 20251279 AMAQI
5th Oct 202513110 AMAQI
5th Oct 202514911 AMAQI
5th Oct 202514112 PMAQI
5th Oct 20251391 PMAQI
5th Oct 20251182 PMAQI
5th Oct 20251023 PMAQI
5th Oct 2025984 PMAQI
5th Oct 2025865 PMAQI
5th Oct 2025826 PMAQI
5th Oct 2025907 PMAQI
5th Oct 20251088 PMAQI
5th Oct 20251069 PMAQI
5th Oct 202512810 PMAQI
5th Oct 202513811 PMAQI
6th Oct 202514212 AMAQI
6th Oct 20251341 AMAQI
6th Oct 20251272 AMAQI
6th Oct 20251163 AMAQI
6th Oct 20251244 AMAQI
6th Oct 20251345 AMAQI
27°C23/31°C
6th Oct 20251506 AMAQI
6th Oct 20251547 AMAQI
6th Oct 20251458 AMAQI
6th Oct 20251509 AMAQI
6th Oct 202514710 AMAQI
6th Oct 202514811 AMAQI
6th Oct 202514112 PMAQI
6th Oct 20251321 PMAQI
6th Oct 20251082 PMAQI
6th Oct 2025843 PMAQI
6th Oct 2025834 PMAQI
6th Oct 2025945 PMAQI
6th Oct 20251076 PMAQI
6th Oct 20251297 PMAQI
6th Oct 20251408 PMAQI
6th Oct 20251459 PMAQI
6th Oct 202513010 PMAQI
6th Oct 202513511 PMAQI
7th Oct 202513112 AMAQI
7th Oct 20251331 AMAQI
28°C25/32°C
7th Oct 20251137 PMAQI
7th Oct 20251438 PMAQI
7th Oct 20251229 PMAQI
7th Oct 202512210 PMAQI
7th Oct 202511611 PMAQI
8th Oct 20259512 AMAQI
8th Oct 2025861 AMAQI
8th Oct 2025822 AMAQI
8th Oct 2025783 AMAQI
8th Oct 2025794 AMAQI
8th Oct 2025765 AMAQI
26°C23/29°C
8th Oct 2025906 AMAQI
6 AM8th Oct 2025957 AMAQI
8th Oct 20251018 AMAQI
8th Oct 2025989 AMAQI
8th Oct 202510410 AMAQI
8th Oct 202511611 AMAQI
8th Oct 202513212 PMAQI
12 PM8th Oct 20251281 PMAQI
8th Oct 20251212 PMAQI
8th Oct 20251073 PMAQI
8th Oct 20251024 PMAQI
8th Oct 2025965 PMAQI
8th Oct 2025906 PMAQI
6 PM8th Oct 2025977 PMAQI
8th Oct 20251008 PMAQI
8th Oct 2025999 PMAQI
8th Oct 202510010 PMAQI
8th Oct 202510911 PMAQI
12 AM
5 AM
--°C/°C
Day time
Avg. Highest Time
6 AM - 7 AM
67AQI
2 hours / Day
60 hours / Month
Avg. Lowest Time
4 PM - 6 PM
57AQI
3 hours / Day
90 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 6 AM to 7 AM (Avg. 67), while the lowest AQI was between 4 PM to 6 PM (Avg. 57).
Night time
Avg. Highest Time
8 PM - 11 PM
68AQI
4 hours / Day
120 hours / Month
Avg. Lowest Time
7 PM
61AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 8 PM to 11 PM (Avg. 68), while the lowest AQI was between 7 PM to 7 PM (Avg. 61).
2025 Days Vs Air Quality
Dongpu Reservoir, Hefei, Anhui, China
2025
12%
33
57%
160
26%
73
5%
13
0.3%
1
Total number of days with different AQI categories in last 281 days in 2025 (84 days remaining)
Good
33 DaysModerate
160 DaysPoor
73 DaysUnhealthy
13 DaysSevere
0 DaysHazardous
1 DaysUnder WHO’s Safe Air Quality Limits: 12%
Health Risk Level:
Extreme
In 2025, 12% of 281 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
Dongpu Reservoir, Hefei, Anhui, 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
140AQI
140AQI
2nd January 2025
176AQI
176AQI
3rd January 2025
177AQI
177AQI
4th January 2025
175AQI
175AQI
5th January 2025
126AQI
126AQI
6th January 2025
133AQI
133AQI
7th January 2025
102AQI
102AQI
8th January 2025
121AQI
121AQI
9th January 2025
80AQI
80AQI
10th January 2025
101AQI
101AQI
11th January 2025
105AQI
105AQI
12th January 2025
115AQI
115AQI
13th January 2025
139AQI
139AQI
14th January 2025
150AQI
150AQI
15th January 2025
93AQI
93AQI
16th January 2025
116AQI
116AQI
17th January 2025
120AQI
120AQI
18th January 2025
137AQI
137AQI
19th January 2025
154AQI
154AQI
20th January 2025
166AQI
166AQI
21st January 2025
165AQI
165AQI
22nd January 2025
188AQI
188AQI
23rd January 2025
166AQI
166AQI
24th January 2025
133AQI
133AQI
25th January 2025
92AQI
92AQI
26th January 2025
126AQI
126AQI
27th January 2025
64AQI
64AQI
28th January 2025
100AQI
100AQI
29th January 2025
137AQI
137AQI
30th January 2025
115AQI
115AQI
31st January 2025
160AQI
160AQI
1st February 2025
120AQI
120AQI
2nd February 2025
126AQI
126AQI
3rd February 2025
153AQI
153AQI
4th February 2025
106AQI
106AQI
5th February 2025
110AQI
110AQI
6th February 2025
83AQI
83AQI
7th February 2025
90AQI
90AQI
8th February 2025
63AQI
63AQI
9th February 2025
79AQI
79AQI
10th February 2025
88AQI
88AQI
11th February 2025
114AQI
114AQI
12th February 2025
143AQI
143AQI
13th February 2025
106AQI
106AQI
14th February 2025
154AQI
154AQI
15th February 2025
100AQI
100AQI
16th February 2025
130AQI
130AQI
17th February 2025
106AQI
106AQI
18th February 2025
106AQI
106AQI
19th February 2025
124AQI
124AQI
20th February 2025
119AQI
119AQI
21st February 2025
110AQI
110AQI
22nd February 2025
130AQI
130AQI
23rd February 2025
145AQI
145AQI
24th February 2025
117AQI
117AQI
25th February 2025
149AQI
149AQI
26th February 2025
152AQI
152AQI
27th February 2025
130AQI
130AQI
28th February 2025
123AQI
123AQI
1st March 2025
101AQI
101AQI
2nd March 2025
81AQI
81AQI
3rd March 2025
72AQI
72AQI
4th March 2025
117AQI
117AQI
5th March 2025
126AQI
126AQI
6th March 2025
116AQI
116AQI
7th March 2025
126AQI
126AQI
8th March 2025
139AQI
139AQI
9th March 2025
147AQI
147AQI
10th March 2025
144AQI
144AQI
11th March 2025
128AQI
128AQI
12th March 2025
166AQI
166AQI
13th March 2025
121AQI
121AQI
14th March 2025
98AQI
98AQI
15th March 2025
92AQI
92AQI
16th March 2025
82AQI
82AQI
17th March 2025
72AQI
72AQI
18th March 2025
75AQI
75AQI
19th March 2025
78AQI
78AQI
20th March 2025
75AQI
75AQI
21st March 2025
76AQI
76AQI
22nd March 2025
85AQI
85AQI
23rd March 2025
90AQI
90AQI
24th March 2025
115AQI
115AQI
25th March 2025
96AQI
96AQI
26th March 2025
121AQI
121AQI
27th March 2025
114AQI
114AQI
28th March 2025
99AQI
99AQI
29th March 2025
121AQI
121AQI
30th March 2025
116AQI
116AQI
31st March 2025
96AQI
96AQI
1st April 2025
98AQI
98AQI
2nd April 2025
103AQI
103AQI
3rd April 2025
86AQI
86AQI
4th April 2025
112AQI
112AQI
5th April 2025
105AQI
105AQI
6th April 2025
93AQI
93AQI
7th April 2025
98AQI
98AQI
8th April 2025
100AQI
100AQI
9th April 2025
109AQI
109AQI
10th April 2025
103AQI
103AQI
11th April 2025
97AQI
97AQI
12th April 2025
348AQI
348AQI
13th April 2025
94AQI
94AQI
14th April 2025
100AQI
100AQI
15th April 2025
73AQI
73AQI
16th April 2025
82AQI
82AQI
17th April 2025
97AQI
97AQI
18th April 2025
99AQI
99AQI
19th April 2025
111AQI
111AQI
20th April 2025
90AQI
90AQI
21st April 2025
92AQI
92AQI
22nd April 2025
114AQI
114AQI
23rd April 2025
99AQI
99AQI
24th April 2025
100AQI
100AQI
25th April 2025
77AQI
77AQI
26th April 2025
75AQI
75AQI
27th April 2025
74AQI
74AQI
28th April 2025
107AQI
107AQI
29th April 2025
83AQI
83AQI
30th April 2025
82AQI
82AQI
1st May 2025
78AQI
78AQI
2nd May 2025
78AQI
78AQI
3rd May 2025
78AQI
78AQI
4th May 2025
73AQI
73AQI
5th May 2025
82AQI
82AQI
6th May 2025
111AQI
111AQI
7th May 2025
119AQI
119AQI
8th May 2025
84AQI
84AQI
9th May 2025
75AQI
75AQI
10th May 2025
59AQI
59AQI
11th May 2025
71AQI
71AQI
12th May 2025
74AQI
74AQI
13th May 2025
80AQI
80AQI
14th May 2025
86AQI
86AQI
15th May 2025
111AQI
111AQI
16th May 2025
81AQI
81AQI
17th May 2025
116AQI
116AQI
18th May 2025
89AQI
89AQI
19th May 2025
108AQI
108AQI
20th May 2025
87AQI
87AQI
21st May 2025
74AQI
74AQI
22nd May 2025
81AQI
81AQI
23rd May 2025
110AQI
110AQI
24th May 2025
110AQI
110AQI
25th May 2025
104AQI
104AQI
26th May 2025
108AQI
108AQI
27th May 2025
115AQI
115AQI
28th May 2025
102AQI
102AQI
29th May 2025
91AQI
91AQI
30th May 2025
82AQI
82AQI
31st May 2025
92AQI
92AQI
1st June 2025
57AQI
57AQI
2nd June 2025
59AQI
59AQI
3rd June 2025
73AQI
73AQI
4th June 2025
85AQI
85AQI
5th June 2025
75AQI
75AQI
6th June 2025
74AQI
74AQI
7th June 2025
51AQI
51AQI
8th June 2025
58AQI
58AQI
9th June 2025
63AQI
63AQI
10th June 2025
67AQI
67AQI
11th June 2025
81AQI
81AQI
12th June 2025
80AQI
80AQI
13th June 2025
82AQI
82AQI
14th June 2025
66AQI
66AQI
15th June 2025
48AQI
48AQI
16th June 2025
58AQI
58AQI
17th June 2025
61AQI
61AQI
18th June 2025
49AQI
49AQI
19th June 2025
44AQI
44AQI
20th June 2025
47AQI
47AQI
21st June 2025
39AQI
39AQI
22nd June 2025
30AQI
30AQI
23rd June 2025
49AQI
49AQI
24th June 2025
57AQI
57AQI
25th June 2025
57AQI
57AQI
26th June 2025
58AQI
58AQI
27th June 2025
51AQI
51AQI
28th June 2025
46AQI
46AQI
29th June 2025
44AQI
44AQI
30th June 2025
52AQI
52AQI
1st July 2025
49AQI
49AQI
2nd July 2025
48AQI
48AQI
3rd July 2025
56AQI
56AQI
4th July 2025
56AQI
56AQI
5th July 2025
60AQI
60AQI
6th July 2025
64AQI
64AQI
7th July 2025
66AQI
66AQI
8th July 2025
54AQI
54AQI
9th July 2025
51AQI
51AQI
10th July 2025
69AQI
69AQI
11th July 2025
67AQI
67AQI
12th July 2025
63AQI
63AQI
13th July 2025
61AQI
61AQI
14th July 2025
65AQI
65AQI
15th July 2025
64AQI
64AQI
16th July 2025
65AQI
65AQI
17th July 2025
61AQI
61AQI
18th July 2025
62AQI
62AQI
19th July 2025
64AQI
64AQI
20th July 2025
48AQI
48AQI
21st July 2025
45AQI
45AQI
22nd July 2025
42AQI
42AQI
23rd July 2025
46AQI
46AQI
24th July 2025
47AQI
47AQI
25th July 2025
55AQI
55AQI
26th July 2025
48AQI
48AQI
27th July 2025
49AQI
49AQI
28th July 2025
44AQI
44AQI
29th July 2025
54AQI
54AQI
30th July 2025
46AQI
46AQI
31st July 2025
53AQI
53AQI
1st August 2025
50AQI
50AQI
2nd August 2025
50AQI
50AQI
3rd August 2025
56AQI
56AQI
4th August 2025
59AQI
59AQI
5th August 2025
64AQI
64AQI
6th August 2025
56AQI
56AQI
7th August 2025
51AQI
51AQI
8th August 2025
51AQI
51AQI
9th August 2025
55AQI
55AQI
10th August 2025
45AQI
45AQI
11th August 2025
40AQI
40AQI
12th August 2025
52AQI
52AQI
13th August 2025
57AQI
57AQI
14th August 2025
52AQI
52AQI
15th August 2025
49AQI
49AQI
16th August 2025
50AQI
50AQI
17th August 2025
55AQI
55AQI
18th August 2025
55AQI
55AQI
19th August 2025
56AQI
56AQI
20th August 2025
51AQI
51AQI
21st August 2025
52AQI
52AQI
22nd August 2025
50AQI
50AQI
23rd August 2025
48AQI
48AQI
24th August 2025
52AQI
52AQI
25th August 2025
55AQI
55AQI
26th August 2025
51AQI
51AQI
27th August 2025
59AQI
59AQI
28th August 2025
60AQI
60AQI
29th August 2025
61AQI
61AQI
30th August 2025
57AQI
57AQI
31st August 2025
52AQI
52AQI
1st September 2025
57AQI
57AQI
2nd September 2025
58AQI
58AQI
3rd September 2025
61AQI
61AQI
4th September 2025
68AQI
68AQI
5th September 2025
69AQI
69AQI
6th September 2025
70AQI
70AQI
7th September 2025
75AQI
75AQI
8th September 2025
67AQI
67AQI
9th September 2025
59AQI
59AQI
10th September 2025
60AQI
60AQI
11th September 2025
59AQI
59AQI
12th September 2025
54AQI
54AQI
13th September 2025
54AQI
54AQI
14th September 2025
56AQI
56AQI
15th September 2025
56AQI
56AQI
16th September 2025
62AQI
62AQI
17th September 2025
54AQI
54AQI
18th September 2025
46AQI
46AQI
19th September 2025
56AQI
56AQI
20th September 2025
54AQI
54AQI
21st September 2025
62AQI
62AQI
22nd September 2025
58AQI
58AQI
23rd September 2025
72AQI
72AQI
24th September 2025
47AQI
47AQI
25th September 2025
37AQI
37AQI
26th September 2025
42AQI
42AQI
27th September 2025
57AQI
57AQI
28th September 2025
56AQI
56AQI
29th September 2025
72AQI
72AQI
30th September 2025
57AQI
57AQI
1st October 2025
65AQI
65AQI
2nd October 2025
74AQI
74AQI
3rd October 2025
49AQI
49AQI
4th October 2025
73AQI
73AQI
5th October 2025
117AQI
117AQI
6th October 2025
130AQI
130AQI
7th October 2025
127AQI
127AQI
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
131AQI
117AQI
106AQI
103AQI
91AQI
59AQI
56AQI
53AQI
59AQI
91AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202586AQI
5
17
9
6
19
3
15
15
1
21
8
1
20
11
9
21
11
20
8
23
4
26
1
3
3
33
160
73
13
1
Highest AQI recorded in
January131AQI
Lowest AQI recorded in
August53AQI
202487AQI
1
8
10
11
1
4
10
11
3
1
5
8
2
1
1
12
3
27
15
16
4
27
6
23
6
15
8
2
2
19
8
1
1
25
5
41
165
71
23
2
Highest AQI recorded in
December129AQI
Lowest AQI recorded in
July50AQI
202384AQI
10
10
1
2
13
9
4
1
11
16
3
2
18
8
1
1
4
25
2
9
21
19
12
3
28
8
20
2
6
15
6
2
2
14
10
2
12
12
3
2
58
199
75
14
3
Highest AQI recorded in
December114AQI
Lowest AQI recorded in
July47AQI
202282AQI
1
6
10
11
12
8
1
5
15
8
2
1
26
2
3
28
5
23
1
8
8
1
3
25
1
8
19
4
3
16
9
2
5
3
38
183
46
16
Highest AQI recorded in
January129AQI
Lowest AQI recorded in
August45AQI
202187AQI
9
15
7
1
19
8
1
17
11
2
1
23
6
2
22
7
4
22
4
18
13
11
11
1
7
10
1
12
11
7
39
155
73
16
Highest AQI recorded in
January120AQI
Lowest AQI recorded in
July46AQI
202083AQI
3
9
1
17
4
17
1
10
19
1
8
19
4
10
21
1
25
4
3
17
11
1
18
11
5
13
13
36
167
50
13
Highest AQI recorded in
December135AQI
Lowest AQI recorded in
June60AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2024(Avg.)
87AQILeast Polluted Year Recorded
2022(Avg.)
82AQIDongpu Reservoir's annual 2025 AQI (86) shows an average percentage change of 1.6% (worsened AQI) compared to previous years: 2020 (83), 2021 (87), 2022 (82), 2023 (84), 2024 (87).
