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+
August Air Quality Analysis
Dongpu Reservoir, Hefei, Anhui, China
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
10th Aug 2021
112AQILowest AQI recorded on
23rd Aug 2021
31AQISame Day Analysis (5th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 61 of Moderate air quality, showing improvement over 2023 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 6th Aug - 7th Aug 2025
Dongpu Reservoir, Hefei, Anhui, China
AQI
Day
Night
.
5 AM6th Aug 2025
7 PM
4 AM7th Aug 2025
Day time
Avg. Highest Time
12AMNaNth undefined
AQI
Avg. Lowest Time
12AMNaNth undefined
AQI
Night time
Avg. Highest Time
8AM6th Aug
69AQI
Avg. Lowest Time
6PM6th Aug
44AQI
In the last 24 hours,
Dongpu Reservoir's AQI reached its highest point of 69 at 8 AM during the Night, while the lowest point, undefined, was recorded at 4 AM during the Night between 6th Aug and 7th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Dongpu Reservoir, Hefei, Anhui, China
JulAug
08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th
Day
Night
8th Jul 2025645 AMAQI
8th Jul 2025646 AMAQI
8th Jul 2025647 AMAQI
8th Jul 2025458 AMAQI
8th Jul 2025349 AMAQI
8th Jul 20253410 AMAQI
8th Jul 20253811 AMAQI
8th Jul 20254612 PMAQI
8th Jul 2025521 PMAQI
8th Jul 2025532 PMAQI
8th Jul 2025523 PMAQI
8th Jul 2025444 PMAQI
8th Jul 2025435 PMAQI
8th Jul 2025516 PMAQI
8th Jul 2025587 PMAQI
8th Jul 2025578 PMAQI
8th Jul 2025589 PMAQI
8th Jul 20255710 PMAQI
8th Jul 20255611 PMAQI
9th Jul 20255612 AMAQI
9th Jul 2025621 AMAQI
9th Jul 2025622 AMAQI
9th Jul 2025623 AMAQI
9th Jul 2025594 AMAQI
29°C26/35°C
9th Jul 2025595 AMAQI
9th Jul 2025596 AMAQI
9th Jul 2025607 AMAQI
9th Jul 2025408 AMAQI
9th Jul 2025349 AMAQI
9th Jul 20254110 AMAQI
9th Jul 20253911 AMAQI
9th Jul 20254312 PMAQI
9th Jul 2025421 PMAQI
9th Jul 2025442 PMAQI
9th Jul 2025403 PMAQI
9th Jul 2025444 PMAQI
9th Jul 2025415 PMAQI
9th Jul 2025406 PMAQI
9th Jul 2025467 PMAQI
9th Jul 2025548 PMAQI
9th Jul 2025569 PMAQI
9th Jul 20255510 PMAQI
9th Jul 20255611 PMAQI
10th Jul 20255712 AMAQI
10th Jul 2025601 AMAQI
10th Jul 2025602 AMAQI
10th Jul 2025593 AMAQI
10th Jul 2025584 AMAQI
29°C25/33°C
10th Jul 2025585 AMAQI
10th Jul 2025586 AMAQI
10th Jul 2025587 AMAQI
10th Jul 2025638 AMAQI
10th Jul 2025729 AMAQI
10th Jul 20257410 AMAQI
10th Jul 20257811 AMAQI
10th Jul 20257812 PMAQI
10th Jul 2025811 PMAQI
10th Jul 2025842 PMAQI
10th Jul 2025773 PMAQI
10th Jul 2025794 PMAQI
10th Jul 2025905 PMAQI
10th Jul 2025886 PMAQI
10th Jul 2025767 PMAQI
10th Jul 2025668 PMAQI
10th Jul 2025669 PMAQI
10th Jul 20256310 PMAQI
10th Jul 20256211 PMAQI
11th Jul 20256412 AMAQI
11th Jul 2025591 AMAQI
11th Jul 2025592 AMAQI
11th Jul 2025603 AMAQI
11th Jul 2025604 AMAQI
28°C25/32°C
11th Jul 2025605 AMAQI
11th Jul 2025616 AMAQI
11th Jul 2025617 AMAQI
11th Jul 2025928 AMAQI
11th Jul 20251029 AMAQI
11th Jul 20259210 AMAQI
11th Jul 20259111 AMAQI
11th Jul 20258412 PMAQI
11th Jul 2025831 PMAQI
11th Jul 2025752 PMAQI
11th Jul 2025693 PMAQI
11th Jul 2025624 PMAQI
11th Jul 2025575 PMAQI
11th Jul 2025606 PMAQI
11th Jul 2025637 PMAQI
11th Jul 2025628 PMAQI
11th Jul 2025609 PMAQI
11th Jul 20255710 PMAQI
11th Jul 20255611 PMAQI
12th Jul 20255712 AMAQI
12th Jul 2025611 AMAQI
12th Jul 2025612 AMAQI
12th Jul 2025633 AMAQI
12th Jul 2025674 AMAQI
28°C24/33°C
12th Jul 2025665 AMAQI
12th Jul 2025666 AMAQI
12th Jul 2025667 AMAQI
12th Jul 2025648 AMAQI
12th Jul 2025679 AMAQI
12th Jul 20256710 AMAQI
12th Jul 20256911 AMAQI
12th Jul 20256712 PMAQI
12th Jul 2025651 PMAQI
12th Jul 2025632 PMAQI
12th Jul 2025643 PMAQI
12th Jul 2025644 PMAQI
12th Jul 2025615 PMAQI
12th Jul 2025646 PMAQI
12th Jul 2025567 PMAQI
12th Jul 2025608 PMAQI
12th Jul 2025599 PMAQI
12th Jul 20255910 PMAQI
12th Jul 20256011 PMAQI
13th Jul 20256212 AMAQI
13th Jul 2025631 AMAQI
13th Jul 2025632 AMAQI
13th Jul 2025633 AMAQI
13th Jul 2025644 AMAQI
27°C24/32°C
13th Jul 2025645 AMAQI
13th Jul 2025646 AMAQI
13th Jul 2025647 AMAQI
13th Jul 2025648 AMAQI
13th Jul 2025719 AMAQI
13th Jul 20256810 AMAQI
13th Jul 20256411 AMAQI
13th Jul 20256212 PMAQI
13th Jul 2025621 PMAQI
13th Jul 2025572 PMAQI
13th Jul 2025583 PMAQI
13th Jul 2025554 PMAQI
13th Jul 2025515 PMAQI
13th Jul 2025516 PMAQI
13th Jul 2025547 PMAQI
13th Jul 2025608 PMAQI
13th Jul 2025619 PMAQI
13th Jul 20256410 PMAQI
13th Jul 20256411 PMAQI
14th Jul 20256412 AMAQI
14th Jul 2025621 AMAQI
14th Jul 2025632 AMAQI
14th Jul 2025633 AMAQI
14th Jul 2025634 AMAQI
29°C24/33°C
14th Jul 2025645 AMAQI
14th Jul 2025646 AMAQI
14th Jul 2025637 AMAQI
14th Jul 2025628 AMAQI
14th Jul 2025689 AMAQI
14th Jul 20256010 AMAQI
14th Jul 20256411 AMAQI
14th Jul 20256412 PMAQI
14th Jul 2025641 PMAQI
14th Jul 2025632 PMAQI
14th Jul 2025703 PMAQI
14th Jul 2025724 PMAQI
14th Jul 2025685 PMAQI
14th Jul 2025686 PMAQI
14th Jul 2025707 PMAQI
14th Jul 2025668 PMAQI
14th Jul 2025679 PMAQI
14th Jul 20256810 PMAQI
14th Jul 20257011 PMAQI
15th Jul 20257312 AMAQI
15th Jul 2025641 AMAQI
15th Jul 2025642 AMAQI
15th Jul 2025643 AMAQI
15th Jul 2025644 AMAQI
30°C26/35°C
15th Jul 2025645 AMAQI
15th Jul 2025636 AMAQI
15th Jul 2025637 AMAQI
15th Jul 2025748 AMAQI
15th Jul 2025769 AMAQI
15th Jul 20257410 AMAQI
15th Jul 20256811 AMAQI
15th Jul 20256712 PMAQI
15th Jul 2025631 PMAQI
15th Jul 2025642 PMAQI
15th Jul 2025573 PMAQI
15th Jul 2025564 PMAQI
15th Jul 2025565 PMAQI
15th Jul 2025586 PMAQI
15th Jul 2025597 PMAQI
15th Jul 2025628 PMAQI
15th Jul 2025649 PMAQI
15th Jul 20256510 PMAQI
15th Jul 20256611 PMAQI
16th Jul 20256412 AMAQI
16th Jul 2025661 AMAQI
16th Jul 2025662 AMAQI
16th Jul 2025653 AMAQI
16th Jul 2025664 AMAQI
30°C25/35°C
16th Jul 2025665 AMAQI
16th Jul 2025666 AMAQI
16th Jul 2025667 AMAQI
16th Jul 2025748 AMAQI
16th Jul 2025769 AMAQI
16th Jul 20257510 AMAQI
16th Jul 20256811 AMAQI
16th Jul 20256312 PMAQI
16th Jul 2025621 PMAQI
16th Jul 2025642 PMAQI
16th Jul 2025623 PMAQI
16th Jul 2025594 PMAQI
16th Jul 2025605 PMAQI
16th Jul 2025586 PMAQI
16th Jul 2025607 PMAQI
16th Jul 2025638 PMAQI
16th Jul 2025659 PMAQI
16th Jul 20256610 PMAQI
16th Jul 20256611 PMAQI
17th Jul 20256212 AMAQI
17th Jul 2025651 AMAQI
17th Jul 2025652 AMAQI
17th Jul 2025653 AMAQI
17th Jul 2025664 AMAQI
31°C27/38°C
17th Jul 2025665 AMAQI
17th Jul 2025666 AMAQI
17th Jul 2025657 AMAQI
17th Jul 2025458 AMAQI
17th Jul 2025449 AMAQI
17th Jul 20255410 AMAQI
17th Jul 20255811 AMAQI
17th Jul 20256312 PMAQI
17th Jul 2025651 PMAQI
17th Jul 2025582 PMAQI
17th Jul 2025553 PMAQI
17th Jul 2025554 PMAQI
17th Jul 2025565 PMAQI
17th Jul 2025566 PMAQI
17th Jul 2025597 PMAQI
17th Jul 2025658 PMAQI
17th Jul 2025659 PMAQI
17th Jul 20256610 PMAQI
17th Jul 20256511 PMAQI
18th Jul 20256412 AMAQI
18th Jul 2025641 AMAQI
18th Jul 2025642 AMAQI
18th Jul 2025643 AMAQI
18th Jul 2025634 AMAQI
30°C27/34°C
18th Jul 2025625 AMAQI
18th Jul 2025636 AMAQI
18th Jul 2025637 AMAQI
18th Jul 2025808 AMAQI
18th Jul 2025809 AMAQI
18th Jul 20257410 AMAQI
18th Jul 20256211 AMAQI
18th Jul 20256012 PMAQI
18th Jul 2025571 PMAQI
18th Jul 2025542 PMAQI
18th Jul 2025533 PMAQI
18th Jul 2025534 PMAQI
18th Jul 2025515 PMAQI
18th Jul 2025536 PMAQI
18th Jul 2025547 PMAQI
18th Jul 2025618 PMAQI
18th Jul 2025629 PMAQI
18th Jul 20256410 PMAQI
18th Jul 20256411 PMAQI
19th Jul 20256412 AMAQI
19th Jul 2025641 AMAQI
19th Jul 2025642 AMAQI
19th Jul 2025643 AMAQI
19th Jul 2025644 AMAQI
29°C24/33°C
19th Jul 2025645 AMAQI
19th Jul 2025646 AMAQI
19th Jul 2025647 AMAQI
19th Jul 2025648 AMAQI
19th Jul 2025649 AMAQI
19th Jul 20256510 AMAQI
19th Jul 20256011 AMAQI
19th Jul 20256612 PMAQI
19th Jul 2025671 PMAQI
19th Jul 2025662 PMAQI
19th Jul 2025633 PMAQI
19th Jul 2025664 PMAQI
19th Jul 2025635 PMAQI
19th Jul 2025646 PMAQI
19th Jul 2025667 PMAQI
19th Jul 2025648 PMAQI
19th Jul 2025669 PMAQI
19th Jul 20256410 PMAQI
19th Jul 20256311 PMAQI
20th Jul 20256212 AMAQI
20th Jul 2025641 AMAQI
20th Jul 2025642 AMAQI
20th Jul 2025633 AMAQI
20th Jul 2025644 AMAQI
28°C24/33°C
20th Jul 2025645 AMAQI
20th Jul 2025646 AMAQI
20th Jul 2025647 AMAQI
20th Jul 2025448 AMAQI
20th Jul 2025259 AMAQI
20th Jul 20254410 AMAQI
20th Jul 20252911 AMAQI
20th Jul 20253012 PMAQI
20th Jul 2025241 PMAQI
20th Jul 2025282 PMAQI
20th Jul 2025313 PMAQI
20th Jul 2025324 PMAQI
20th Jul 2025315 PMAQI
20th Jul 2025276 PMAQI
20th Jul 2025427 PMAQI
20th Jul 2025558 PMAQI
20th Jul 2025569 PMAQI
20th Jul 20255610 PMAQI
20th Jul 20255711 PMAQI
21st Jul 20255812 AMAQI
21st Jul 2025631 AMAQI
21st Jul 2025632 AMAQI
21st Jul 2025613 AMAQI
21st Jul 2025584 AMAQI
30°C26/35°C
21st Jul 2025585 AMAQI
21st Jul 2025586 AMAQI
21st Jul 2025587 AMAQI
21st Jul 2025358 AMAQI
21st Jul 2025289 AMAQI
21st Jul 20252810 AMAQI
21st Jul 20252711 AMAQI
21st Jul 20252812 PMAQI
21st Jul 2025261 PMAQI
21st Jul 2025272 PMAQI
21st Jul 2025283 PMAQI
21st Jul 2025244 PMAQI
21st Jul 2025275 PMAQI
21st Jul 2025346 PMAQI
21st Jul 2025397 PMAQI
21st Jul 2025528 PMAQI
21st Jul 2025549 PMAQI
21st Jul 20255310 PMAQI
21st Jul 20255311 PMAQI
22nd Jul 20255512 AMAQI
22nd Jul 2025591 AMAQI
22nd Jul 2025602 AMAQI
22nd Jul 2025583 AMAQI
22nd Jul 2025564 AMAQI
30°C26/34°C
22nd Jul 2025565 AMAQI
22nd Jul 2025556 AMAQI
22nd Jul 2025557 AMAQI
22nd Jul 2025298 AMAQI
22nd Jul 2025199 AMAQI
22nd Jul 20251810 AMAQI
22nd Jul 20252111 AMAQI
22nd Jul 20252412 PMAQI
22nd Jul 2025241 PMAQI
22nd Jul 2025262 PMAQI
22nd Jul 2025253 PMAQI
22nd Jul 2025224 PMAQI
22nd Jul 2025285 PMAQI
22nd Jul 2025336 PMAQI
22nd Jul 2025337 PMAQI
22nd Jul 2025448 PMAQI
22nd Jul 2025509 PMAQI
22nd Jul 20255210 PMAQI
22nd Jul 20255211 PMAQI
23rd Jul 20255312 AMAQI
23rd Jul 2025571 AMAQI
23rd Jul 2025572 AMAQI
23rd Jul 2025563 AMAQI
23rd Jul 2025544 AMAQI
29°C26/33°C
23rd Jul 2025545 AMAQI
23rd Jul 2025536 AMAQI
23rd Jul 2025537 AMAQI
23rd Jul 2025398 AMAQI
23rd Jul 2025349 AMAQI
23rd Jul 20253410 AMAQI
23rd Jul 20253911 AMAQI
23rd Jul 20253812 PMAQI
23rd Jul 2025391 PMAQI
23rd Jul 2025422 PMAQI
23rd Jul 2025403 PMAQI
23rd Jul 2025324 PMAQI
23rd Jul 2025325 PMAQI
23rd Jul 2025346 PMAQI
23rd Jul 2025377 PMAQI
23rd Jul 2025508 PMAQI
23rd Jul 2025529 PMAQI
23rd Jul 20255210 PMAQI
23rd Jul 20255311 PMAQI
24th Jul 20255312 AMAQI
24th Jul 2025531 AMAQI
24th Jul 2025552 AMAQI
24th Jul 2025543 AMAQI
24th Jul 2025534 AMAQI
29°C26/34°C
24th Jul 2025525 AMAQI
24th Jul 2025536 AMAQI
24th Jul 2025537 AMAQI
24th Jul 2025408 AMAQI
24th Jul 2025419 AMAQI
24th Jul 20254410 AMAQI
24th Jul 20254511 AMAQI
24th Jul 20254612 PMAQI
24th Jul 2025381 PMAQI
24th Jul 2025382 PMAQI
24th Jul 2025313 PMAQI
24th Jul 2025304 PMAQI
24th Jul 2025365 PMAQI
24th Jul 2025346 PMAQI
24th Jul 2025407 PMAQI
24th Jul 2025528 PMAQI
24th Jul 2025529 PMAQI
24th Jul 20255210 PMAQI
24th Jul 20255211 PMAQI
25th Jul 20255312 AMAQI
25th Jul 2025541 AMAQI
25th Jul 2025542 AMAQI
25th Jul 2025523 AMAQI
25th Jul 2025524 AMAQI
30°C25/35°C
25th Jul 2025525 AMAQI
25th Jul 2025526 AMAQI
25th Jul 2025527 AMAQI
25th Jul 2025478 AMAQI
25th Jul 2025509 AMAQI
25th Jul 20255610 AMAQI
25th Jul 20256211 AMAQI
25th Jul 20256012 PMAQI
25th Jul 2025581 PMAQI
25th Jul 2025592 PMAQI
25th Jul 2025573 PMAQI
25th Jul 2025544 PMAQI
25th Jul 2025565 PMAQI
25th Jul 2025586 PMAQI
25th Jul 2025567 PMAQI
25th Jul 2025588 PMAQI
25th Jul 2025589 PMAQI
25th Jul 20255810 PMAQI
25th Jul 20255711 PMAQI
26th Jul 20255512 AMAQI
26th Jul 2025531 AMAQI
26th Jul 2025532 AMAQI
26th Jul 2025543 AMAQI
26th Jul 2025544 AMAQI
30°C25/35°C
26th Jul 2025545 AMAQI
26th Jul 2025546 AMAQI
26th Jul 2025547 AMAQI
26th Jul 2025508 AMAQI
26th Jul 2025499 AMAQI
26th Jul 20254810 AMAQI
26th Jul 20255011 AMAQI
26th Jul 20254412 PMAQI
26th Jul 2025431 PMAQI
26th Jul 2025412 PMAQI
26th Jul 2025353 PMAQI
26th Jul 2025324 PMAQI
26th Jul 2025385 PMAQI
26th Jul 2025406 PMAQI
26th Jul 2025437 PMAQI
26th Jul 2025518 PMAQI
26th Jul 2025509 PMAQI
26th Jul 20255010 PMAQI
26th Jul 20254911 PMAQI
27th Jul 20254912 AMAQI
27th Jul 2025541 AMAQI
27th Jul 2025542 AMAQI
27th Jul 2025543 AMAQI
27th Jul 2025544 AMAQI
29°C25/33°C
27th Jul 2025545 AMAQI
27th Jul 2025536 AMAQI
27th Jul 2025537 AMAQI
27th Jul 2025488 AMAQI
27th Jul 2025439 AMAQI
27th Jul 20254910 AMAQI
27th Jul 20255411 AMAQI
27th Jul 20254912 PMAQI
27th Jul 2025501 PMAQI
27th Jul 2025532 PMAQI
27th Jul 2025533 PMAQI
27th Jul 2025414 PMAQI
27th Jul 2025385 PMAQI
27th Jul 2025346 PMAQI
27th Jul 2025357 PMAQI
27th Jul 2025448 PMAQI
27th Jul 2025509 PMAQI
27th Jul 20255210 PMAQI
27th Jul 20255211 PMAQI
28th Jul 20255212 AMAQI
28th Jul 2025541 AMAQI
28th Jul 2025542 AMAQI
28th Jul 2025543 AMAQI
28th Jul 2025534 AMAQI
29°C25/33°C
28th Jul 2025535 AMAQI
28th Jul 2025536 AMAQI
28th Jul 2025537 AMAQI
28th Jul 2025428 AMAQI
28th Jul 2025389 AMAQI
28th Jul 20254310 AMAQI
28th Jul 20254611 AMAQI
28th Jul 20254212 PMAQI
28th Jul 2025421 PMAQI
28th Jul 2025382 PMAQI
28th Jul 2025353 PMAQI
28th Jul 2025294 PMAQI
28th Jul 2025285 PMAQI
28th Jul 2025236 PMAQI
28th Jul 2025357 PMAQI
28th Jul 2025438 PMAQI
28th Jul 2025439 PMAQI
28th Jul 20254810 PMAQI
28th Jul 20254611 PMAQI
29th Jul 20255012 AMAQI
29th Jul 2025541 AMAQI
29th Jul 2025542 AMAQI
29th Jul 2025533 AMAQI
29th Jul 2025524 AMAQI
28°C25/33°C
29th Jul 2025525 AMAQI
29th Jul 2025526 AMAQI
29th Jul 2025527 AMAQI
29th Jul 2025498 AMAQI
29th Jul 2025569 AMAQI
29th Jul 20255410 AMAQI
29th Jul 20255411 AMAQI
29th Jul 20255512 PMAQI
29th Jul 2025551 PMAQI
29th Jul 2025552 PMAQI
29th Jul 2025553 PMAQI
29th Jul 2025534 PMAQI
29th Jul 2025555 PMAQI
29th Jul 2025566 PMAQI
29th Jul 2025537 PMAQI
29th Jul 2025538 PMAQI
29th Jul 2025529 PMAQI
29th Jul 20255410 PMAQI
29th Jul 20255611 PMAQI
30th Jul 20255612 AMAQI
30th Jul 2025521 AMAQI
30th Jul 2025522 AMAQI
30th Jul 2025533 AMAQI
30th Jul 2025534 AMAQI
29°C25/34°C
30th Jul 2025535 AMAQI
30th Jul 2025536 AMAQI
30th Jul 2025537 AMAQI
30th Jul 2025538 AMAQI
30th Jul 2025529 AMAQI
30th Jul 20254110 AMAQI
30th Jul 20253711 AMAQI
30th Jul 20254212 PMAQI
30th Jul 2025381 PMAQI
30th Jul 2025342 PMAQI
30th Jul 2025333 PMAQI
30th Jul 2025334 PMAQI
30th Jul 2025385 PMAQI
30th Jul 2025366 PMAQI
30th Jul 2025447 PMAQI
30th Jul 2025508 PMAQI
30th Jul 2025509 PMAQI
30th Jul 20254810 PMAQI
30th Jul 20255011 PMAQI
31st Jul 20255012 AMAQI
31st Jul 2025541 AMAQI
31st Jul 2025542 AMAQI
31st Jul 2025543 AMAQI
31st Jul 2025544 AMAQI
27°C23/32°C
31st Jul 2025545 AMAQI
31st Jul 2025546 AMAQI
31st Jul 2025547 AMAQI
31st Jul 2025548 AMAQI
31st Jul 2025549 AMAQI
31st Jul 20255010 AMAQI
31st Jul 20254611 AMAQI
31st Jul 20255612 PMAQI
31st Jul 2025581 PMAQI
31st Jul 2025532 PMAQI
31st Jul 2025573 PMAQI
31st Jul 2025604 PMAQI
31st Jul 2025545 PMAQI
31st Jul 2025526 PMAQI
31st Jul 2025507 PMAQI
31st Jul 2025528 PMAQI
31st Jul 2025529 PMAQI
31st Jul 20255510 PMAQI
31st Jul 20255511 PMAQI
1st Aug 20255412 AMAQI
1st Aug 2025541 AMAQI
1st Aug 2025552 AMAQI
1st Aug 2025543 AMAQI
1st Aug 2025544 AMAQI
24°C22/27°C
1st Aug 2025535 AMAQI
1st Aug 2025536 AMAQI
1st Aug 2025537 AMAQI
1st Aug 2025588 AMAQI
1st Aug 2025619 AMAQI
1st Aug 20255810 AMAQI
1st Aug 20256211 AMAQI
1st Aug 20255812 PMAQI
1st Aug 2025531 PMAQI
1st Aug 2025462 PMAQI
1st Aug 2025393 PMAQI
1st Aug 2025404 PMAQI
1st Aug 2025315 PMAQI
1st Aug 2025446 PMAQI
1st Aug 2025397 PMAQI
1st Aug 2025458 PMAQI
1st Aug 2025479 PMAQI
1st Aug 20254710 PMAQI
1st Aug 20255111 PMAQI
2nd Aug 20254512 AMAQI
2nd Aug 2025531 AMAQI
2nd Aug 2025542 AMAQI
2nd Aug 2025543 AMAQI
2nd Aug 2025534 AMAQI
25°C24/27°C
2nd Aug 2025555 AMAQI
2nd Aug 2025556 AMAQI
2nd Aug 2025547 AMAQI
2nd Aug 2025468 AMAQI
2nd Aug 2025379 AMAQI
2nd Aug 20254210 AMAQI
2nd Aug 20254611 AMAQI
2nd Aug 20254112 PMAQI
2nd Aug 2025481 PMAQI
2nd Aug 2025382 PMAQI
2nd Aug 2025453 PMAQI
2nd Aug 2025424 PMAQI
2nd Aug 2025425 PMAQI
2nd Aug 2025506 PMAQI
2nd Aug 2025537 PMAQI
2nd Aug 2025538 PMAQI
2nd Aug 2025559 PMAQI
2nd Aug 20255610 PMAQI
2nd Aug 20255611 PMAQI
3rd Aug 20255412 AMAQI
3rd Aug 2025541 AMAQI
3rd Aug 2025572 AMAQI
3rd Aug 2025533 AMAQI
3rd Aug 2025534 AMAQI
28°C24/32°C
3rd Aug 2025535 AMAQI
3rd Aug 2025536 AMAQI
3rd Aug 2025537 AMAQI
3rd Aug 2025578 AMAQI
3rd Aug 2025609 AMAQI
3rd Aug 20256510 AMAQI
3rd Aug 20256011 AMAQI
3rd Aug 20256012 PMAQI
3rd Aug 2025521 PMAQI
3rd Aug 2025512 PMAQI
3rd Aug 2025523 PMAQI
3rd Aug 2025514 PMAQI
3rd Aug 2025595 PMAQI
3rd Aug 2025586 PMAQI
3rd Aug 2025567 PMAQI
3rd Aug 2025578 PMAQI
3rd Aug 2025579 PMAQI
3rd Aug 20255810 PMAQI
3rd Aug 20255711 PMAQI
4th Aug 20255612 AMAQI
4th Aug 2025541 AMAQI
4th Aug 2025542 AMAQI
4th Aug 2025543 AMAQI
4th Aug 2025554 AMAQI
30°C26/34°C
4th Aug 2025545 AMAQI
4th Aug 2025556 AMAQI
4th Aug 2025547 AMAQI
4th Aug 2025708 AMAQI
4th Aug 2025689 AMAQI
4th Aug 20256710 AMAQI
4th Aug 20256911 AMAQI
4th Aug 20256612 PMAQI
4th Aug 2025571 PMAQI
4th Aug 2025582 PMAQI
4th Aug 2025573 PMAQI
4th Aug 2025584 PMAQI
4th Aug 2025595 PMAQI
4th Aug 2025616 PMAQI
4th Aug 2025587 PMAQI
4th Aug 2025588 PMAQI
4th Aug 2025609 PMAQI
4th Aug 20256010 PMAQI
4th Aug 20256011 PMAQI
5th Aug 20255712 AMAQI
5th Aug 2025551 AMAQI
5th Aug 2025552 AMAQI
5th Aug 2025573 AMAQI
5th Aug 2025574 AMAQI
31°C27/35°C
5th Aug 2025585 AMAQI
5th Aug 2025576 AMAQI
5th Aug 2025577 AMAQI
5th Aug 2025728 AMAQI
5th Aug 2025749 AMAQI
5th Aug 20257810 AMAQI
5th Aug 20258111 AMAQI
5th Aug 20257612 PMAQI
5th Aug 2025701 PMAQI
5th Aug 2025662 PMAQI
5th Aug 2025663 PMAQI
5th Aug 2025664 PMAQI
5th Aug 2025665 PMAQI
5th Aug 2025586 PMAQI
5th Aug 2025607 PMAQI
5th Aug 2025648 PMAQI
5th Aug 2025649 PMAQI
5th Aug 20256410 PMAQI
5th Aug 20256711 PMAQI
6th Aug 20256212 AMAQI
6th Aug 2025571 AMAQI
6th Aug 2025572 AMAQI
6th Aug 2025583 AMAQI
6th Aug 2025604 AMAQI
31°C27/35°C
6th Aug 2025615 AMAQI
6th Aug 2025606 AMAQI
6th Aug 2025607 AMAQI
6th Aug 2025698 AMAQI
6th Aug 2025629 AMAQI
6th Aug 20256410 AMAQI
6th Aug 20255911 AMAQI
6th Aug 20255612 PMAQI
6th Aug 2025561 PMAQI
6th Aug 2025502 PMAQI
6th Aug 2025633 PMAQI
6th Aug 2025464 PMAQI
6th Aug 2025515 PMAQI
6th Aug 2025446 PMAQI
6th Aug 2025477 PMAQI
6th Aug 2025528 PMAQI
6th Aug 2025539 PMAQI
6th Aug 20255410 PMAQI
6th Aug 20255411 PMAQI
7th Aug 20255712 AMAQI
7th Aug 2025601 AMAQI
7th Aug 2025602 AMAQI
7th Aug 2025583 AMAQI
--°C/°C
5 AM
12 PM
7 PM
12 AM
4 AM
--°C/°C
Day time
Avg. Highest Time
5 AM - 3 PM
55AQI
11 hours / Day
330 hours / Month
Avg. Lowest Time
4 PM - 7 PM
50AQI
4 hours / Day
120 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 3 PM (Avg. 55), while the lowest AQI was between 4 PM to 7 PM (Avg. 50).
Night time
Avg. Highest Time
12 AM - 11 PM
58AQI
9 hours / Day
270 hours / Month
Avg. Lowest Time
12 AM - 11 PM
58AQI
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. 58), while the lowest AQI was between 12 AM to 11 PM (Avg. 58).
2025 Days Vs Air Quality
Dongpu Reservoir, Hefei, Anhui, China
2025
10%
22
51%
111
32%
70
6%
13
0.4%
1
Total number of days with different AQI categories in last 218 days in 2025 (147 days remaining)
Good
22 DaysModerate
111 DaysPoor
70 DaysUnhealthy
13 DaysSevere
0 DaysHazardous
1 DaysUnder WHO’s Safe Air Quality Limits: 10%
Health Risk Level:
Extreme
In 2025, 10% of 218 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.
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
61AQI
61AQI
131AQI
117AQI
106AQI
103AQI
91AQI
59AQI
56AQI
55AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202594AQI
5
17
9
6
19
3
15
15
1
21
8
1
20
11
9
21
11
20
2
3
22
111
70
13
1
Highest AQI recorded in
January131AQI
Lowest AQI recorded in
August55AQI
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
2025(Avg.)
94AQILeast Polluted Year Recorded
2022(Avg.)
82AQIDongpu Reservoir's annual 2025 AQI (94) shows an average percentage change of 10.6% (worsened AQI) compared to previous years: 2020 (83), 2021 (87), 2022 (82), 2023 (84), 2024 (87).
