High Tech Zone, 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
High Tech Zone, Hefei, Anhui, China
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
10th Aug 2021
131AQILowest AQI recorded on
1st Aug 2024
31AQISame Day Analysis (7th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 58 of Moderate air quality, showing improvement over 2023 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 7th Aug - 8th Aug 2025
High Tech Zone, Hefei, Anhui, China
AQI
Day
Night
.
5 AM7th Aug 2025
7 PM
4 AM8th Aug 2025
Day time
Avg. Highest Time
12AMNaNth undefined
AQI
Avg. Lowest Time
12AMNaNth undefined
AQI
Night time
Avg. Highest Time
5AM7th Aug
62AQI
Avg. Lowest Time
6PM7th Aug
30AQI
In the last 24 hours,
High Tech Zone's AQI reached its highest point of 62 at 5 AM during the Night, while the lowest point, undefined, was recorded at 4 AM during the Night between 7th Aug and 8th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
High Tech Zone, Hefei, Anhui, China
JulAug
09th - 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 - 08th08th
Day
Night
9th Jul 2025595 AMAQI
9th Jul 2025596 AMAQI
9th Jul 2025597 AMAQI
9th Jul 2025368 AMAQI
9th Jul 2025349 AMAQI
9th Jul 20253610 AMAQI
9th Jul 20253611 AMAQI
9th Jul 20254712 PMAQI
9th Jul 2025471 PMAQI
9th Jul 2025392 PMAQI
9th Jul 2025343 PMAQI
9th Jul 2025424 PMAQI
9th Jul 2025465 PMAQI
9th Jul 2025486 PMAQI
9th Jul 2025537 PMAQI
9th Jul 2025588 PMAQI
9th Jul 2025609 PMAQI
9th Jul 20255510 PMAQI
9th Jul 20255411 PMAQI
10th Jul 20255512 AMAQI
10th Jul 2025601 AMAQI
10th Jul 2025592 AMAQI
10th Jul 2025583 AMAQI
10th Jul 2025574 AMAQI
29°C25/33°C
10th Jul 2025575 AMAQI
10th Jul 2025576 AMAQI
10th Jul 2025567 AMAQI
10th Jul 2025588 AMAQI
10th Jul 2025689 AMAQI
10th Jul 20257310 AMAQI
10th Jul 20258011 AMAQI
10th Jul 20257912 PMAQI
10th Jul 2025821 PMAQI
10th Jul 2025842 PMAQI
10th Jul 2025823 PMAQI
10th Jul 2025844 PMAQI
10th Jul 2025885 PMAQI
10th Jul 2025826 PMAQI
10th Jul 2025757 PMAQI
10th Jul 2025728 PMAQI
10th Jul 2025709 PMAQI
10th Jul 20256510 PMAQI
10th Jul 20256711 PMAQI
11th Jul 20256412 AMAQI
11th Jul 2025581 AMAQI
11th Jul 2025582 AMAQI
11th Jul 2025603 AMAQI
11th Jul 2025614 AMAQI
28°C25/32°C
11th Jul 2025615 AMAQI
11th Jul 2025616 AMAQI
11th Jul 2025617 AMAQI
11th Jul 2025988 AMAQI
11th Jul 20251059 AMAQI
11th Jul 20259210 AMAQI
11th Jul 20259011 AMAQI
11th Jul 20258212 PMAQI
11th Jul 2025841 PMAQI
11th Jul 2025812 PMAQI
11th Jul 2025733 PMAQI
11th Jul 2025664 PMAQI
11th Jul 2025625 PMAQI
11th Jul 2025566 PMAQI
11th Jul 2025657 PMAQI
11th Jul 2025648 PMAQI
11th Jul 2025629 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 2025677 AMAQI
12th Jul 2025648 AMAQI
12th Jul 2025689 AMAQI
12th Jul 20256710 AMAQI
12th Jul 20256911 AMAQI
12th Jul 20256812 PMAQI
12th Jul 2025571 PMAQI
12th Jul 2025552 PMAQI
12th Jul 2025553 PMAQI
12th Jul 2025564 PMAQI
12th Jul 2025545 PMAQI
12th Jul 2025546 PMAQI
12th Jul 2025567 PMAQI
12th Jul 2025608 PMAQI
12th Jul 2025589 PMAQI
12th Jul 20256010 PMAQI
12th Jul 20256011 PMAQI
13th Jul 20256212 AMAQI
13th Jul 2025641 AMAQI
13th Jul 2025642 AMAQI
13th Jul 2025643 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 2025669 AMAQI
13th Jul 20256610 AMAQI
13th Jul 20256811 AMAQI
13th Jul 20256112 PMAQI
13th Jul 2025621 PMAQI
13th Jul 2025592 PMAQI
13th Jul 2025613 PMAQI
13th Jul 2025584 PMAQI
13th Jul 2025545 PMAQI
13th Jul 2025536 PMAQI
13th Jul 2025547 PMAQI
13th Jul 2025598 PMAQI
13th Jul 2025619 PMAQI
13th Jul 20256310 PMAQI
13th Jul 20256411 PMAQI
14th Jul 20256412 AMAQI
14th Jul 2025631 AMAQI
14th Jul 2025632 AMAQI
14th Jul 2025633 AMAQI
14th Jul 2025634 AMAQI
29°C24/33°C
14th Jul 2025635 AMAQI
14th Jul 2025646 AMAQI
14th Jul 2025637 AMAQI
14th Jul 2025628 AMAQI
14th Jul 2025609 AMAQI
14th Jul 20256210 AMAQI
14th Jul 20256011 AMAQI
14th Jul 20255912 PMAQI
14th Jul 2025601 PMAQI
14th Jul 2025582 PMAQI
14th Jul 2025713 PMAQI
14th Jul 2025694 PMAQI
14th Jul 2025685 PMAQI
14th Jul 2025726 PMAQI
14th Jul 2025717 PMAQI
14th Jul 2025668 PMAQI
14th Jul 2025689 PMAQI
14th Jul 20257010 PMAQI
14th Jul 20257211 PMAQI
15th Jul 20257112 AMAQI
15th Jul 2025631 AMAQI
15th Jul 2025632 AMAQI
15th Jul 2025633 AMAQI
15th Jul 2025634 AMAQI
30°C26/35°C
15th Jul 2025635 AMAQI
15th Jul 2025636 AMAQI
15th Jul 2025637 AMAQI
15th Jul 2025728 AMAQI
15th Jul 2025729 AMAQI
15th Jul 20256910 AMAQI
15th Jul 20256611 AMAQI
15th Jul 20256312 PMAQI
15th Jul 2025571 PMAQI
15th Jul 2025572 PMAQI
15th Jul 2025463 PMAQI
15th Jul 2025524 PMAQI
15th Jul 2025545 PMAQI
15th Jul 2025576 PMAQI
15th Jul 2025577 PMAQI
15th Jul 2025618 PMAQI
15th Jul 2025629 PMAQI
15th Jul 20256510 PMAQI
15th Jul 20256711 PMAQI
16th Jul 20256612 AMAQI
16th Jul 2025651 AMAQI
16th Jul 2025642 AMAQI
16th Jul 2025643 AMAQI
16th Jul 2025644 AMAQI
30°C25/35°C
16th Jul 2025645 AMAQI
16th Jul 2025646 AMAQI
16th Jul 2025647 AMAQI
16th Jul 2025728 AMAQI
16th Jul 2025749 AMAQI
16th Jul 20257510 AMAQI
16th Jul 20256611 AMAQI
16th Jul 20256512 PMAQI
16th Jul 2025601 PMAQI
16th Jul 2025612 PMAQI
16th Jul 2025623 PMAQI
16th Jul 2025564 PMAQI
16th Jul 2025625 PMAQI
16th Jul 2025586 PMAQI
16th Jul 2025607 PMAQI
16th Jul 2025628 PMAQI
16th Jul 2025629 PMAQI
16th Jul 20256410 PMAQI
16th Jul 20256411 PMAQI
17th Jul 20256112 AMAQI
17th Jul 2025641 AMAQI
17th Jul 2025642 AMAQI
17th Jul 2025643 AMAQI
17th Jul 2025664 AMAQI
31°C27/38°C
17th Jul 2025655 AMAQI
17th Jul 2025656 AMAQI
17th Jul 2025657 AMAQI
17th Jul 2025388 AMAQI
17th Jul 2025529 AMAQI
17th Jul 20254810 AMAQI
17th Jul 20255411 AMAQI
17th Jul 20256612 PMAQI
17th Jul 2025661 PMAQI
17th Jul 2025642 PMAQI
17th Jul 2025593 PMAQI
17th Jul 2025564 PMAQI
17th Jul 2025565 PMAQI
17th Jul 2025546 PMAQI
17th Jul 2025577 PMAQI
17th Jul 2025648 PMAQI
17th Jul 2025669 PMAQI
17th Jul 20256610 PMAQI
17th Jul 20256211 PMAQI
18th Jul 20256212 AMAQI
18th Jul 2025641 AMAQI
18th Jul 2025642 AMAQI
18th Jul 2025623 AMAQI
18th Jul 2025624 AMAQI
30°C27/34°C
18th Jul 2025625 AMAQI
18th Jul 2025636 AMAQI
18th Jul 2025627 AMAQI
18th Jul 2025768 AMAQI
18th Jul 2025819 AMAQI
18th Jul 20257010 AMAQI
18th Jul 20256011 AMAQI
18th Jul 20256412 PMAQI
18th Jul 2025581 PMAQI
18th Jul 2025562 PMAQI
18th Jul 2025583 PMAQI
18th Jul 2025574 PMAQI
18th Jul 2025535 PMAQI
18th Jul 2025546 PMAQI
18th Jul 2025537 PMAQI
18th Jul 2025598 PMAQI
18th Jul 2025629 PMAQI
18th Jul 20256410 PMAQI
18th Jul 20256411 PMAQI
19th Jul 20256112 AMAQI
19th Jul 2025631 AMAQI
19th Jul 2025622 AMAQI
19th Jul 2025633 AMAQI
19th Jul 2025634 AMAQI
29°C24/33°C
19th Jul 2025635 AMAQI
19th Jul 2025646 AMAQI
19th Jul 2025637 AMAQI
19th Jul 2025648 AMAQI
19th Jul 2025649 AMAQI
19th Jul 20256210 AMAQI
19th Jul 20255911 AMAQI
19th Jul 20256712 PMAQI
19th Jul 2025641 PMAQI
19th Jul 2025662 PMAQI
19th Jul 2025683 PMAQI
19th Jul 2025704 PMAQI
19th Jul 2025655 PMAQI
19th Jul 2025646 PMAQI
19th Jul 2025657 PMAQI
19th Jul 2025668 PMAQI
19th Jul 2025649 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 2025636 AMAQI
20th Jul 2025647 AMAQI
20th Jul 2025428 AMAQI
20th Jul 2025209 AMAQI
20th Jul 20252010 AMAQI
20th Jul 20252411 AMAQI
20th Jul 20252812 PMAQI
20th Jul 2025221 PMAQI
20th Jul 2025242 PMAQI
20th Jul 2025303 PMAQI
20th Jul 2025314 PMAQI
20th Jul 2025305 PMAQI
20th Jul 2025286 PMAQI
20th Jul 2025447 PMAQI
20th Jul 2025558 PMAQI
20th Jul 2025569 PMAQI
20th Jul 20255810 PMAQI
20th Jul 20255711 PMAQI
21st Jul 20255612 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 2025279 AMAQI
21st Jul 20252710 AMAQI
21st Jul 20252811 AMAQI
21st Jul 20252512 PMAQI
21st Jul 2025241 PMAQI
21st Jul 2025262 PMAQI
21st Jul 2025323 PMAQI
21st Jul 2025324 PMAQI
21st Jul 2025315 PMAQI
21st Jul 2025356 PMAQI
21st Jul 2025397 PMAQI
21st Jul 2025518 PMAQI
21st Jul 2025529 PMAQI
21st Jul 20255310 PMAQI
21st Jul 20255211 PMAQI
22nd Jul 20255512 AMAQI
22nd Jul 2025601 AMAQI
22nd Jul 2025602 AMAQI
22nd Jul 2025583 AMAQI
22nd Jul 2025554 AMAQI
30°C26/34°C
22nd Jul 2025565 AMAQI
22nd Jul 2025556 AMAQI
22nd Jul 2025557 AMAQI
22nd Jul 2025288 AMAQI
22nd Jul 2025209 AMAQI
22nd Jul 20251910 AMAQI
22nd Jul 20252011 AMAQI
22nd Jul 20252212 PMAQI
22nd Jul 2025251 PMAQI
22nd Jul 2025212 PMAQI
22nd Jul 2025233 PMAQI
22nd Jul 2025224 PMAQI
22nd Jul 2025255 PMAQI
22nd Jul 2025286 PMAQI
22nd Jul 2025327 PMAQI
22nd Jul 2025448 PMAQI
22nd Jul 2025489 PMAQI
22nd Jul 20254810 PMAQI
22nd Jul 20255211 PMAQI
23rd Jul 20255312 AMAQI
23rd Jul 2025571 AMAQI
23rd Jul 2025572 AMAQI
23rd Jul 2025563 AMAQI
23rd Jul 2025534 AMAQI
29°C26/33°C
23rd Jul 2025535 AMAQI
23rd Jul 2025536 AMAQI
23rd Jul 2025537 AMAQI
23rd Jul 2025368 AMAQI
23rd Jul 2025339 AMAQI
23rd Jul 20253810 AMAQI
23rd Jul 20254111 AMAQI
23rd Jul 20254212 PMAQI
23rd Jul 2025401 PMAQI
23rd Jul 2025362 PMAQI
23rd Jul 2025383 PMAQI
23rd Jul 2025324 PMAQI
23rd Jul 2025325 PMAQI
23rd Jul 2025336 PMAQI
23rd Jul 2025387 PMAQI
23rd Jul 2025488 PMAQI
23rd Jul 2025489 PMAQI
23rd Jul 20255210 PMAQI
23rd Jul 20255211 PMAQI
24th Jul 20255312 AMAQI
24th Jul 2025531 AMAQI
24th Jul 2025542 AMAQI
24th Jul 2025543 AMAQI
24th Jul 2025534 AMAQI
29°C26/34°C
24th Jul 2025535 AMAQI
24th Jul 2025526 AMAQI
24th Jul 2025537 AMAQI
24th Jul 2025388 AMAQI
24th Jul 2025459 AMAQI
24th Jul 20254210 AMAQI
24th Jul 20253811 AMAQI
24th Jul 20253512 PMAQI
24th Jul 2025331 PMAQI
24th Jul 2025302 PMAQI
24th Jul 2025263 PMAQI
24th Jul 2025284 PMAQI
24th Jul 2025425 PMAQI
24th Jul 2025376 PMAQI
24th Jul 2025397 PMAQI
24th Jul 2025488 PMAQI
24th Jul 2025499 PMAQI
24th Jul 20255110 PMAQI
24th Jul 20255311 PMAQI
25th Jul 20255412 AMAQI
25th Jul 2025531 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 2025438 AMAQI
25th Jul 2025499 AMAQI
25th Jul 20255410 AMAQI
25th Jul 20255911 AMAQI
25th Jul 20256412 PMAQI
25th Jul 2025641 PMAQI
25th Jul 2025602 PMAQI
25th Jul 2025583 PMAQI
25th Jul 2025584 PMAQI
25th Jul 2025565 PMAQI
25th Jul 2025566 PMAQI
25th Jul 2025567 PMAQI
25th Jul 2025568 PMAQI
25th Jul 2025589 PMAQI
25th Jul 20255810 PMAQI
25th Jul 20255611 PMAQI
26th Jul 20255612 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 2025538 AMAQI
26th Jul 2025539 AMAQI
26th Jul 20255110 AMAQI
26th Jul 20255311 AMAQI
26th Jul 20254112 PMAQI
26th Jul 2025481 PMAQI
26th Jul 2025462 PMAQI
26th Jul 2025343 PMAQI
26th Jul 2025314 PMAQI
26th Jul 2025385 PMAQI
26th Jul 2025406 PMAQI
26th Jul 2025447 PMAQI
26th Jul 2025528 PMAQI
26th Jul 2025509 PMAQI
26th Jul 20255010 PMAQI
26th Jul 20255011 PMAQI
27th Jul 20255012 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 2025508 AMAQI
27th Jul 2025489 AMAQI
27th Jul 20255210 AMAQI
27th Jul 20255211 AMAQI
27th Jul 20255412 PMAQI
27th Jul 2025541 PMAQI
27th Jul 2025532 PMAQI
27th Jul 2025523 PMAQI
27th Jul 2025414 PMAQI
27th Jul 2025425 PMAQI
27th Jul 2025466 PMAQI
27th Jul 2025357 PMAQI
27th Jul 2025428 PMAQI
27th Jul 2025449 PMAQI
27th Jul 20255110 PMAQI
27th Jul 20255211 PMAQI
28th Jul 20255312 AMAQI
28th Jul 2025541 AMAQI
28th Jul 2025542 AMAQI
28th Jul 2025543 AMAQI
28th Jul 2025544 AMAQI
29°C25/33°C
28th Jul 2025545 AMAQI
28th Jul 2025546 AMAQI
28th Jul 2025537 AMAQI
28th Jul 2025428 AMAQI
28th Jul 2025449 AMAQI
28th Jul 20254310 AMAQI
28th Jul 20254511 AMAQI
28th Jul 20253912 PMAQI
28th Jul 2025321 PMAQI
28th Jul 2025312 PMAQI
28th Jul 2025373 PMAQI
28th Jul 2025304 PMAQI
28th Jul 2025305 PMAQI
28th Jul 2025206 PMAQI
28th Jul 2025347 PMAQI
28th Jul 2025418 PMAQI
28th Jul 2025429 PMAQI
28th Jul 20254710 PMAQI
28th Jul 20254711 PMAQI
29th Jul 20255212 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 2025518 AMAQI
29th Jul 2025569 AMAQI
29th Jul 20255410 AMAQI
29th Jul 20255611 AMAQI
29th Jul 20255712 PMAQI
29th Jul 2025561 PMAQI
29th Jul 2025572 PMAQI
29th Jul 2025573 PMAQI
29th Jul 2025544 PMAQI
29th Jul 2025555 PMAQI
29th Jul 2025566 PMAQI
29th Jul 2025567 PMAQI
29th Jul 2025548 PMAQI
29th Jul 2025559 PMAQI
29th Jul 20255410 PMAQI
29th Jul 20255611 PMAQI
30th Jul 20255612 AMAQI
30th Jul 2025531 AMAQI
30th Jul 2025532 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 2025548 AMAQI
30th Jul 2025559 AMAQI
30th Jul 20254110 AMAQI
30th Jul 20254011 AMAQI
30th Jul 20253612 PMAQI
30th Jul 2025351 PMAQI
30th Jul 2025332 PMAQI
30th Jul 2025333 PMAQI
30th Jul 2025374 PMAQI
30th Jul 2025445 PMAQI
30th Jul 2025386 PMAQI
30th Jul 2025427 PMAQI
30th Jul 2025488 PMAQI
30th Jul 2025459 PMAQI
30th Jul 20254410 PMAQI
30th Jul 20254811 PMAQI
31st Jul 20254612 AMAQI
31st Jul 2025531 AMAQI
31st Jul 2025522 AMAQI
31st Jul 2025523 AMAQI
31st Jul 2025524 AMAQI
27°C23/32°C
31st Jul 2025525 AMAQI
31st Jul 2025526 AMAQI
31st Jul 2025527 AMAQI
31st Jul 2025528 AMAQI
31st Jul 2025529 AMAQI
31st Jul 20255310 AMAQI
31st Jul 20255211 AMAQI
31st Jul 20255812 PMAQI
31st Jul 2025591 PMAQI
31st Jul 2025552 PMAQI
31st Jul 2025583 PMAQI
31st Jul 2025584 PMAQI
31st Jul 2025585 PMAQI
31st Jul 2025556 PMAQI
31st Jul 2025527 PMAQI
31st Jul 2025548 PMAQI
31st Jul 2025529 PMAQI
31st Jul 20255510 PMAQI
31st Jul 20255611 PMAQI
1st Aug 20255412 AMAQI
1st Aug 2025541 AMAQI
1st Aug 2025552 AMAQI
1st Aug 2025553 AMAQI
1st Aug 2025544 AMAQI
24°C22/27°C
1st Aug 2025535 AMAQI
1st Aug 2025536 AMAQI
1st Aug 2025547 AMAQI
1st Aug 2025628 AMAQI
1st Aug 2025619 AMAQI
1st Aug 20256210 AMAQI
1st Aug 20256211 AMAQI
1st Aug 20256012 PMAQI
1st Aug 2025471 PMAQI
1st Aug 2025362 PMAQI
1st Aug 2025423 PMAQI
1st Aug 2025384 PMAQI
1st Aug 2025355 PMAQI
1st Aug 2025486 PMAQI
1st Aug 2025427 PMAQI
1st Aug 2025508 PMAQI
1st Aug 2025529 PMAQI
1st Aug 20255310 PMAQI
1st Aug 20255211 PMAQI
2nd Aug 20255012 AMAQI
2nd Aug 2025541 AMAQI
2nd Aug 2025542 AMAQI
2nd Aug 2025543 AMAQI
2nd Aug 2025544 AMAQI
25°C24/27°C
2nd Aug 2025555 AMAQI
2nd Aug 2025556 AMAQI
2nd Aug 2025557 AMAQI
2nd Aug 2025468 AMAQI
2nd Aug 2025489 AMAQI
2nd Aug 20255010 AMAQI
2nd Aug 20255111 AMAQI
2nd Aug 20254712 PMAQI
2nd Aug 2025551 PMAQI
2nd Aug 2025482 PMAQI
2nd Aug 2025533 PMAQI
2nd Aug 2025444 PMAQI
2nd Aug 2025415 PMAQI
2nd Aug 2025526 PMAQI
2nd Aug 2025547 PMAQI
2nd Aug 2025548 PMAQI
2nd Aug 2025589 PMAQI
2nd Aug 20255610 PMAQI
2nd Aug 20255511 PMAQI
3rd Aug 20255412 AMAQI
3rd Aug 2025551 AMAQI
3rd Aug 2025582 AMAQI
3rd Aug 2025543 AMAQI
3rd Aug 2025544 AMAQI
28°C24/32°C
3rd Aug 2025545 AMAQI
3rd Aug 2025546 AMAQI
3rd Aug 2025537 AMAQI
3rd Aug 2025578 AMAQI
3rd Aug 2025599 AMAQI
3rd Aug 20256510 AMAQI
3rd Aug 20255911 AMAQI
3rd Aug 20256012 PMAQI
3rd Aug 2025531 PMAQI
3rd Aug 2025552 PMAQI
3rd Aug 2025503 PMAQI
3rd Aug 2025504 PMAQI
3rd Aug 2025565 PMAQI
3rd Aug 2025546 PMAQI
3rd Aug 2025557 PMAQI
3rd Aug 2025568 PMAQI
3rd Aug 2025579 PMAQI
3rd Aug 20255810 PMAQI
3rd Aug 20255811 PMAQI
4th Aug 20255612 AMAQI
4th Aug 2025551 AMAQI
4th Aug 2025552 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 20256310 AMAQI
4th Aug 20256611 AMAQI
4th Aug 20256712 PMAQI
4th Aug 2025581 PMAQI
4th Aug 2025572 PMAQI
4th Aug 2025573 PMAQI
4th Aug 2025564 PMAQI
4th Aug 2025565 PMAQI
4th Aug 2025576 PMAQI
4th Aug 2025587 PMAQI
4th Aug 2025578 PMAQI
4th Aug 2025609 PMAQI
4th Aug 20256210 PMAQI
4th Aug 20255811 PMAQI
5th Aug 20255612 AMAQI
5th Aug 2025551 AMAQI
5th Aug 2025562 AMAQI
5th Aug 2025573 AMAQI
5th Aug 2025574 AMAQI
31°C27/35°C
5th Aug 2025575 AMAQI
5th Aug 2025576 AMAQI
5th Aug 2025577 AMAQI
5th Aug 2025708 AMAQI
5th Aug 2025749 AMAQI
5th Aug 20257810 AMAQI
5th Aug 20257711 AMAQI
5th Aug 20257012 PMAQI
5th Aug 2025701 PMAQI
5th Aug 2025662 PMAQI
5th Aug 2025633 PMAQI
5th Aug 2025624 PMAQI
5th Aug 2025625 PMAQI
5th Aug 2025586 PMAQI
5th Aug 2025587 PMAQI
5th Aug 2025628 PMAQI
5th Aug 2025639 PMAQI
5th Aug 20256410 PMAQI
5th Aug 20256411 PMAQI
6th Aug 20256112 AMAQI
6th Aug 2025581 AMAQI
6th Aug 2025572 AMAQI
6th Aug 2025583 AMAQI
6th Aug 2025604 AMAQI
31°C27/35°C
6th Aug 2025605 AMAQI
6th Aug 2025606 AMAQI
6th Aug 2025607 AMAQI
6th Aug 2025608 AMAQI
6th Aug 2025609 AMAQI
6th Aug 20257610 AMAQI
6th Aug 20256711 AMAQI
6th Aug 20255812 PMAQI
6th Aug 2025571 PMAQI
6th Aug 2025582 PMAQI
6th Aug 2025673 PMAQI
6th Aug 2025504 PMAQI
6th Aug 2025505 PMAQI
6th Aug 2025486 PMAQI
6th Aug 2025487 PMAQI
6th Aug 2025518 PMAQI
6th Aug 2025549 PMAQI
6th Aug 20255010 PMAQI
6th Aug 20255611 PMAQI
7th Aug 20255712 AMAQI
7th Aug 2025601 AMAQI
7th Aug 2025602 AMAQI
7th Aug 2025603 AMAQI
7th Aug 2025624 AMAQI
31°C28/36°C
7th Aug 2025625 AMAQI
7th Aug 2025596 AMAQI
7th Aug 2025627 AMAQI
7th Aug 2025498 AMAQI
7th Aug 2025549 AMAQI
7th Aug 20255710 AMAQI
7th Aug 20255311 AMAQI
7th Aug 20255612 PMAQI
7th Aug 2025481 PMAQI
7th Aug 2025422 PMAQI
7th Aug 2025383 PMAQI
7th Aug 2025334 PMAQI
7th Aug 2025325 PMAQI
7th Aug 2025306 PMAQI
7th Aug 2025477 PMAQI
7th Aug 2025548 PMAQI
7th Aug 2025549 PMAQI
7th Aug 20255510 PMAQI
7th Aug 20255511 PMAQI
8th Aug 20255512 AMAQI
8th Aug 2025601 AMAQI
8th Aug 2025602 AMAQI
8th Aug 2025603 AMAQI
--°C/°C
5 AM
12 PM
7 PM
12 AM
4 AM
--°C/°C
Day time
Avg. Highest Time
5 AM - 7 AM
58AQI
3 hours / Day
90 hours / Month
Avg. Lowest Time
4 PM - 7 PM
49AQI
4 hours / Day
120 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 7 AM (Avg. 58), while the lowest AQI was between 4 PM to 7 PM (Avg. 49).
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
High Tech Zone, Hefei, Anhui, China
2025
10%
21
53%
116
32%
70
5%
11
0.4%
1
Total number of days with different AQI categories in last 219 days in 2025 (146 days remaining)
Good
21 DaysModerate
116 DaysPoor
70 DaysUnhealthy
11 DaysSevere
0 DaysHazardous
1 DaysUnder WHO’s Safe Air Quality Limits: 10%
Health Risk Level:
Extreme
In 2025, 10% of 219 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
High Tech Zone, 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
137AQI
137AQI
2nd January 2025
184AQI
184AQI
3rd January 2025
185AQI
185AQI
4th January 2025
177AQI
177AQI
5th January 2025
124AQI
124AQI
6th January 2025
135AQI
135AQI
7th January 2025
99AQI
99AQI
8th January 2025
120AQI
120AQI
9th January 2025
79AQI
79AQI
10th January 2025
97AQI
97AQI
11th January 2025
100AQI
100AQI
12th January 2025
114AQI
114AQI
13th January 2025
134AQI
134AQI
14th January 2025
148AQI
148AQI
15th January 2025
90AQI
90AQI
16th January 2025
114AQI
114AQI
17th January 2025
109AQI
109AQI
18th January 2025
133AQI
133AQI
19th January 2025
149AQI
149AQI
20th January 2025
163AQI
163AQI
21st January 2025
161AQI
161AQI
22nd January 2025
188AQI
188AQI
23rd January 2025
166AQI
166AQI
24th January 2025
136AQI
136AQI
25th January 2025
94AQI
94AQI
26th January 2025
126AQI
126AQI
27th January 2025
64AQI
64AQI
28th January 2025
95AQI
95AQI
29th January 2025
134AQI
134AQI
30th January 2025
112AQI
112AQI
31st January 2025
162AQI
162AQI
1st February 2025
126AQI
126AQI
2nd February 2025
131AQI
131AQI
3rd February 2025
159AQI
159AQI
4th February 2025
104AQI
104AQI
5th February 2025
109AQI
109AQI
6th February 2025
83AQI
83AQI
7th February 2025
93AQI
93AQI
8th February 2025
63AQI
63AQI
9th February 2025
77AQI
77AQI
10th February 2025
83AQI
83AQI
11th February 2025
111AQI
111AQI
12th February 2025
142AQI
142AQI
13th February 2025
101AQI
101AQI
14th February 2025
152AQI
152AQI
15th February 2025
99AQI
99AQI
16th February 2025
128AQI
128AQI
17th February 2025
110AQI
110AQI
18th February 2025
102AQI
102AQI
19th February 2025
124AQI
124AQI
20th February 2025
121AQI
121AQI
21st February 2025
109AQI
109AQI
22nd February 2025
131AQI
131AQI
23rd February 2025
144AQI
144AQI
24th February 2025
119AQI
119AQI
25th February 2025
148AQI
148AQI
26th February 2025
149AQI
149AQI
27th February 2025
129AQI
129AQI
28th February 2025
124AQI
124AQI
1st March 2025
101AQI
101AQI
2nd March 2025
79AQI
79AQI
3rd March 2025
72AQI
72AQI
4th March 2025
115AQI
115AQI
5th March 2025
125AQI
125AQI
6th March 2025
114AQI
114AQI
7th March 2025
121AQI
121AQI
8th March 2025
134AQI
134AQI
9th March 2025
147AQI
147AQI
10th March 2025
147AQI
147AQI
11th March 2025
129AQI
129AQI
12th March 2025
170AQI
170AQI
13th March 2025
122AQI
122AQI
14th March 2025
99AQI
99AQI
15th March 2025
93AQI
93AQI
16th March 2025
84AQI
84AQI
17th March 2025
69AQI
69AQI
18th March 2025
76AQI
76AQI
19th March 2025
73AQI
73AQI
20th March 2025
70AQI
70AQI
21st March 2025
70AQI
70AQI
22nd March 2025
78AQI
78AQI
23rd March 2025
83AQI
83AQI
24th March 2025
108AQI
108AQI
25th March 2025
90AQI
90AQI
26th March 2025
119AQI
119AQI
27th March 2025
115AQI
115AQI
28th March 2025
100AQI
100AQI
29th March 2025
127AQI
127AQI
30th March 2025
114AQI
114AQI
31st March 2025
95AQI
95AQI
1st April 2025
96AQI
96AQI
2nd April 2025
102AQI
102AQI
3rd April 2025
87AQI
87AQI
4th April 2025
110AQI
110AQI
5th April 2025
106AQI
106AQI
6th April 2025
88AQI
88AQI
7th April 2025
97AQI
97AQI
8th April 2025
97AQI
97AQI
9th April 2025
110AQI
110AQI
10th April 2025
103AQI
103AQI
11th April 2025
97AQI
97AQI
12th April 2025
346AQI
346AQI
13th April 2025
95AQI
95AQI
14th April 2025
99AQI
99AQI
15th April 2025
73AQI
73AQI
16th April 2025
84AQI
84AQI
17th April 2025
95AQI
95AQI
18th April 2025
100AQI
100AQI
19th April 2025
111AQI
111AQI
20th April 2025
98AQI
98AQI
21st April 2025
95AQI
95AQI
22nd April 2025
119AQI
119AQI
23rd April 2025
100AQI
100AQI
24th April 2025
101AQI
101AQI
25th April 2025
78AQI
78AQI
26th April 2025
76AQI
76AQI
27th April 2025
74AQI
74AQI
28th April 2025
114AQI
114AQI
29th April 2025
83AQI
83AQI
30th April 2025
81AQI
81AQI
1st May 2025
78AQI
78AQI
2nd May 2025
77AQI
77AQI
3rd May 2025
84AQI
84AQI
4th May 2025
73AQI
73AQI
5th May 2025
85AQI
85AQI
6th May 2025
113AQI
113AQI
7th May 2025
121AQI
121AQI
8th May 2025
90AQI
90AQI
9th May 2025
77AQI
77AQI
10th May 2025
57AQI
57AQI
11th May 2025
71AQI
71AQI
12th May 2025
72AQI
72AQI
13th May 2025
79AQI
79AQI
14th May 2025
85AQI
85AQI
15th May 2025
111AQI
111AQI
16th May 2025
84AQI
84AQI
17th May 2025
129AQI
129AQI
18th May 2025
89AQI
89AQI
19th May 2025
108AQI
108AQI
20th May 2025
87AQI
87AQI
21st May 2025
75AQI
75AQI
22nd May 2025
80AQI
80AQI
23rd May 2025
112AQI
112AQI
24th May 2025
112AQI
112AQI
25th May 2025
108AQI
108AQI
26th May 2025
116AQI
116AQI
27th May 2025
117AQI
117AQI
28th May 2025
111AQI
111AQI
29th May 2025
94AQI
94AQI
30th May 2025
85AQI
85AQI
31st May 2025
89AQI
89AQI
1st June 2025
59AQI
59AQI
2nd June 2025
59AQI
59AQI
3rd June 2025
72AQI
72AQI
4th June 2025
85AQI
85AQI
5th June 2025
74AQI
74AQI
6th June 2025
74AQI
74AQI
7th June 2025
53AQI
53AQI
8th June 2025
60AQI
60AQI
9th June 2025
64AQI
64AQI
10th June 2025
66AQI
66AQI
11th June 2025
81AQI
81AQI
12th June 2025
82AQI
82AQI
13th June 2025
84AQI
84AQI
14th June 2025
64AQI
64AQI
15th June 2025
48AQI
48AQI
16th June 2025
58AQI
58AQI
17th June 2025
61AQI
61AQI
18th June 2025
49AQI
49AQI
19th June 2025
43AQI
43AQI
20th June 2025
46AQI
46AQI
21st June 2025
39AQI
39AQI
22nd June 2025
27AQI
27AQI
23rd June 2025
49AQI
49AQI
24th June 2025
58AQI
58AQI
25th June 2025
58AQI
58AQI
26th June 2025
56AQI
56AQI
27th June 2025
50AQI
50AQI
28th June 2025
48AQI
48AQI
29th June 2025
43AQI
43AQI
30th June 2025
52AQI
52AQI
1st July 2025
49AQI
49AQI
2nd July 2025
49AQI
49AQI
3rd July 2025
56AQI
56AQI
4th July 2025
55AQI
55AQI
5th July 2025
60AQI
60AQI
6th July 2025
66AQI
66AQI
7th July 2025
68AQI
68AQI
8th July 2025
53AQI
53AQI
9th July 2025
51AQI
51AQI
10th July 2025
69AQI
69AQI
11th July 2025
68AQI
68AQI
12th July 2025
61AQI
61AQI
13th July 2025
61AQI
61AQI
14th July 2025
65AQI
65AQI
15th July 2025
62AQI
62AQI
16th July 2025
64AQI
64AQI
17th July 2025
61AQI
61AQI
18th July 2025
62AQI
62AQI
19th July 2025
64AQI
64AQI
20th July 2025
47AQI
47AQI
21st July 2025
45AQI
45AQI
22nd July 2025
41AQI
41AQI
23rd July 2025
46AQI
46AQI
24th July 2025
45AQI
45AQI
25th July 2025
55AQI
55AQI
26th July 2025
49AQI
49AQI
27th July 2025
50AQI
50AQI
28th July 2025
43AQI
43AQI
29th July 2025
54AQI
54AQI
30th July 2025
46AQI
46AQI
31st July 2025
54AQI
54AQI
1st August 2025
51AQI
51AQI
2nd August 2025
52AQI
52AQI
3rd August 2025
56AQI
56AQI
4th August 2025
58AQI
58AQI
5th August 2025
62AQI
62AQI
6th August 2025
57AQI
57AQI
7th August 2025
58AQI
58AQI
130AQI
117AQI
104AQI
104AQI
93AQI
59AQI
55AQI
56AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202593AQI
8
15
8
6
20
2
15
15
1
20
9
1
20
11
10
20
11
20
7
21
116
70
11
1
Highest AQI recorded in
January130AQI
Lowest AQI recorded in
July55AQI
202493AQI
1
6
12
10
2
2
10
12
4
1
10
17
4
8
20
2
19
12
7
22
1
20
11
4
27
6
23
1
5
13
11
2
2
18
7
3
1
24
6
47
168
117
31
3
Highest AQI recorded in
January134AQI
Lowest AQI recorded in
July47AQI
202396AQI
9
15
7
2
9
13
4
1
10
18
2
17
12
1
1
22
7
1
1
27
2
10
21
1
30
2
24
4
2
16
11
2
2
9
14
1
2
9
13
4
3
24
203
109
21
4
Highest AQI recorded in
January126AQI
Lowest AQI recorded in
July58AQI
202294AQI
1
4
10
16
6
13
2
3
14
12
2
22
8
1
22
8
7
22
1
5
20
1
2
3
23
3
4
22
5
1
13
14
2
1
8
13
7
2
27
178
87
29
2
Highest AQI recorded in
January140AQI
Lowest AQI recorded in
July60AQI
202195AQI
6
14
10
1
1
12
12
3
9
20
2
17
12
1
2
22
7
1
23
6
14
17
4
23
4
3
25
2
4
14
13
1
15
10
4
10
13
8
30
193
113
28
1
Highest AQI recorded in
January135AQI
Lowest AQI recorded in
July55AQI
202093AQI
1
10
2
14
7
12
6
8
21
1
7
20
4
5
25
1
25
5
16
14
1
12
17
1
4
10
16
1
21
159
67
18
1
Highest AQI recorded in
December146AQI
Lowest AQI recorded in
August66AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2023(Avg.)
96AQILeast Polluted Year Recorded
2020(Avg.)
93AQIHigh Tech Zone's annual 2025 AQI (93) shows an average percentage change of -1.05% (improved AQI) compared to previous years: 2020 (93), 2021 (95), 2022 (94), 2023 (96), 2024 (93).
