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HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

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+

September Air Quality Analysis

High Tech Zone, Hefei, Anhui, China

2022
2023
2024
2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
28th Sep 2023
135AQI
Lowest AQI recorded on
27th Sep 2026
18AQI

Same Day Analysis (28th September):
On this day, AQI across the 5 years varied significantly: 2026 ranks the most lowest AQI at 24 of Good air quality, showing improvement over 2025, 2024, 2023 and 2022 on the same day.

Day & Night AQI Trend: 27th Sep - 28th Sep 2026

High Tech Zone, Hefei, Anhui, China

AQI
Day
Night
.

5 AM27th Sep 2026

6 PM

4 AM28th Sep 2026

Day time
Avg. Highest Time
7AM27th Sep

25AQI

Avg. Lowest Time
6PM27th Sep

8AQI

Night time
Avg. Highest Time
5AM27th Sep

40AQI

Avg. Lowest Time
4AM28th Sep

8AQI

In the last 24 hours,

High Tech Zone's AQI reached its highest point of 40 at 5 AM during the Night, while the lowest point, 8, was recorded at 4 AM during the Night between 27th Sep and 28th Sep 2026.

Day & Night AQI Trend : Aug - Sep 2026

High Tech Zone, Hefei, Anhui, China

AugSep
30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th
Day
Night
30th Aug 2026385 AMAQI
30th Aug 2026316 AMAQI
30th Aug 2026337 AMAQI
30th Aug 2026488 AMAQI
30th Aug 2026529 AMAQI
30th Aug 20266210 AMAQI
30th Aug 20266711 AMAQI
30th Aug 20266412 PMAQI
30th Aug 2026381 PMAQI
30th Aug 2026162 PMAQI
30th Aug 2026173 PMAQI
30th Aug 202694 PMAQI
30th Aug 2026105 PMAQI
30th Aug 202686 PMAQI
30th Aug 2026107 PMAQI
30th Aug 2026258 PMAQI
30th Aug 2026279 PMAQI
30th Aug 20263110 PMAQI
30th Aug 20262511 PMAQI
31st Aug 20261012 AMAQI
31st Aug 202691 AMAQI
31st Aug 2026172 AMAQI
31st Aug 2026233 AMAQI
31st Aug 2026564 AMAQI

27°C25/30°C

31st Aug 2026725 AMAQI
31st Aug 20261026 AMAQI
31st Aug 20261117 AMAQI
31st Aug 2026978 AMAQI
31st Aug 2026979 AMAQI
31st Aug 20268010 AMAQI
31st Aug 20264011 AMAQI
31st Aug 20263312 PMAQI
31st Aug 2026321 PMAQI
31st Aug 2026402 PMAQI
31st Aug 2026383 PMAQI
31st Aug 2026404 PMAQI
31st Aug 2026365 PMAQI
31st Aug 2026336 PMAQI
31st Aug 2026387 PMAQI
31st Aug 2026388 PMAQI
31st Aug 2026389 PMAQI
31st Aug 20264610 PMAQI
31st Aug 20265411 PMAQI
1st Sep 20264712 AMAQI
1st Sep 2026291 AMAQI
1st Sep 2026262 AMAQI
1st Sep 2026173 AMAQI
1st Sep 2026204 AMAQI

24°C23/25°C

1st Sep 2026215 AMAQI
1st Sep 2026276 AMAQI
1st Sep 2026287 AMAQI
1st Sep 2026278 AMAQI
1st Sep 2026489 AMAQI
1st Sep 20266910 AMAQI
1st Sep 20265911 AMAQI
1st Sep 20264912 PMAQI
1st Sep 2026361 PMAQI
1st Sep 2026272 PMAQI
1st Sep 2026293 PMAQI
1st Sep 2026344 PMAQI
1st Sep 2026445 PMAQI
1st Sep 2026556 PMAQI
1st Sep 2026567 PMAQI
1st Sep 2026538 PMAQI
1st Sep 2026519 PMAQI
1st Sep 20264210 PMAQI
1st Sep 20263811 PMAQI
2nd Sep 20263112 AMAQI
2nd Sep 2026271 AMAQI
2nd Sep 2026152 AMAQI
2nd Sep 2026183 AMAQI
2nd Sep 2026184 AMAQI

23°C22/25°C

2nd Sep 2026185 AMAQI
2nd Sep 2026206 AMAQI
2nd Sep 2026197 AMAQI
2nd Sep 2026208 AMAQI
2nd Sep 2026269 AMAQI
2nd Sep 20262410 AMAQI
2nd Sep 20262311 AMAQI
2nd Sep 20262212 PMAQI
2nd Sep 2026221 PMAQI
2nd Sep 2026252 PMAQI
2nd Sep 2026253 PMAQI
2nd Sep 2026244 PMAQI
2nd Sep 2026255 PMAQI
2nd Sep 2026236 PMAQI
2nd Sep 2026237 PMAQI
2nd Sep 2026238 PMAQI
2nd Sep 2026239 PMAQI
2nd Sep 20262310 PMAQI
2nd Sep 20262211 PMAQI
3rd Sep 20262112 AMAQI
3rd Sep 2026231 AMAQI
3rd Sep 2026272 AMAQI
3rd Sep 2026293 AMAQI
3rd Sep 2026314 AMAQI

23°C21/25°C

3rd Sep 2026295 AMAQI
3rd Sep 2026296 AMAQI
3rd Sep 2026297 AMAQI
3rd Sep 2026278 AMAQI
3rd Sep 2026279 AMAQI
3rd Sep 20262510 AMAQI
3rd Sep 20262511 AMAQI
3rd Sep 20262712 PMAQI
3rd Sep 2026251 PMAQI
3rd Sep 2026272 PMAQI
3rd Sep 2026293 PMAQI
3rd Sep 2026294 PMAQI
3rd Sep 2026275 PMAQI
3rd Sep 2026316 PMAQI
3rd Sep 2026337 PMAQI
3rd Sep 2026388 PMAQI
3rd Sep 2026389 PMAQI
3rd Sep 20264210 PMAQI
3rd Sep 20263811 PMAQI
4th Sep 20263312 AMAQI
4th Sep 2026381 AMAQI
4th Sep 2026362 AMAQI
4th Sep 2026363 AMAQI
4th Sep 2026344 AMAQI

23°C22/25°C

4th Sep 2026335 AMAQI
4th Sep 2026316 AMAQI
4th Sep 2026337 AMAQI
4th Sep 2026338 AMAQI
4th Sep 2026339 AMAQI
4th Sep 20263410 AMAQI
4th Sep 20262711 AMAQI
4th Sep 20262712 PMAQI
4th Sep 2026251 PMAQI
4th Sep 2026252 PMAQI
4th Sep 2026233 PMAQI
4th Sep 2026244 PMAQI
4th Sep 2026225 PMAQI
4th Sep 2026256 PMAQI
4th Sep 2026277 PMAQI
4th Sep 2026258 PMAQI
4th Sep 2026279 PMAQI
4th Sep 20263110 PMAQI
4th Sep 20263311 PMAQI
5th Sep 20263312 AMAQI
5th Sep 2026381 AMAQI
5th Sep 2026402 AMAQI
5th Sep 2026443 AMAQI
5th Sep 2026484 AMAQI

24°C21/29°C

5th Sep 2026485 AMAQI
5th Sep 2026496 AMAQI
5th Sep 2026557 AMAQI
5th Sep 2026668 AMAQI
5th Sep 2026729 AMAQI
5th Sep 20267410 AMAQI
5th Sep 20265411 AMAQI
5th Sep 20264612 PMAQI
5th Sep 2026421 PMAQI
5th Sep 2026382 PMAQI
5th Sep 2026303 PMAQI
5th Sep 2026314 PMAQI
5th Sep 2026295 PMAQI
5th Sep 2026256 PMAQI
5th Sep 2026227 PMAQI
5th Sep 2026218 PMAQI
5th Sep 2026429 PMAQI
5th Sep 20265210 PMAQI
5th Sep 20264011 PMAQI
6th Sep 20265112 AMAQI
6th Sep 2026581 AMAQI
6th Sep 2026652 AMAQI
6th Sep 2026733 AMAQI
6th Sep 2026764 AMAQI

24°C20/29°C

6th Sep 2026545 AMAQI
6th Sep 2026556 AMAQI
6th Sep 2026667 AMAQI
6th Sep 2026768 AMAQI
6th Sep 2026529 AMAQI
6th Sep 20262110 AMAQI
6th Sep 20262211 AMAQI
6th Sep 20261812 PMAQI
6th Sep 2026171 PMAQI
6th Sep 2026202 PMAQI
6th Sep 2026203 PMAQI
6th Sep 2026204 PMAQI
6th Sep 2026155 PMAQI
6th Sep 2026206 PMAQI
6th Sep 2026187 PMAQI
6th Sep 2026248 PMAQI
6th Sep 2026289 PMAQI
6th Sep 20263410 PMAQI
6th Sep 20264011 PMAQI
7th Sep 20264412 AMAQI
7th Sep 2026281 AMAQI
7th Sep 2026242 AMAQI
7th Sep 2026253 AMAQI
7th Sep 2026274 AMAQI

24°C21/29°C

7th Sep 2026385 AMAQI
7th Sep 2026276 AMAQI
7th Sep 2026277 AMAQI
7th Sep 2026408 AMAQI
7th Sep 2026429 AMAQI
7th Sep 20262810 AMAQI
7th Sep 20262611 AMAQI
7th Sep 20263112 PMAQI
7th Sep 2026321 PMAQI
7th Sep 2026382 PMAQI
7th Sep 2026423 PMAQI
7th Sep 2026424 PMAQI
7th Sep 2026475 PMAQI
7th Sep 2026666 PMAQI
7th Sep 2026727 PMAQI
7th Sep 2026758 PMAQI
7th Sep 2026749 PMAQI
7th Sep 20266710 PMAQI
7th Sep 20266411 PMAQI
8th Sep 20265612 AMAQI
8th Sep 2026461 AMAQI
8th Sep 2026382 AMAQI
8th Sep 2026363 AMAQI
8th Sep 2026254 AMAQI

24°C20/29°C

8th Sep 2026205 AMAQI
8th Sep 2026216 AMAQI
8th Sep 2026257 AMAQI
8th Sep 2026528 AMAQI
8th Sep 2026529 AMAQI
8th Sep 20265010 AMAQI
8th Sep 20265011 AMAQI
8th Sep 20263812 PMAQI
8th Sep 2026491 PMAQI
8th Sep 2026552 PMAQI
8th Sep 2026593 PMAQI
8th Sep 2026584 PMAQI
8th Sep 2026595 PMAQI
8th Sep 2026576 PMAQI
8th Sep 2026577 PMAQI
8th Sep 2026698 PMAQI
8th Sep 2026849 PMAQI
8th Sep 20268310 PMAQI
8th Sep 20267511 PMAQI
9th Sep 20268812 AMAQI
9th Sep 20261081 AMAQI
9th Sep 2026902 AMAQI
9th Sep 2026683 AMAQI
9th Sep 2026584 AMAQI

25°C22/30°C

9th Sep 2026655 AMAQI
9th Sep 2026446 AMAQI
9th Sep 2026347 AMAQI
9th Sep 2026328 AMAQI
9th Sep 2026369 AMAQI
9th Sep 20263610 AMAQI
9th Sep 20264211 AMAQI
9th Sep 20263812 PMAQI
9th Sep 2026421 PMAQI
9th Sep 2026462 PMAQI
9th Sep 2026423 PMAQI
9th Sep 2026444 PMAQI
9th Sep 2026405 PMAQI
9th Sep 2026386 PMAQI
9th Sep 2026357 PMAQI
9th Sep 2026338 PMAQI
9th Sep 2026369 PMAQI
9th Sep 20263710 PMAQI
9th Sep 20265011 PMAQI
10th Sep 20264612 AMAQI
10th Sep 2026501 AMAQI
10th Sep 2026652 AMAQI
10th Sep 2026603 AMAQI
10th Sep 2026564 AMAQI

22°C18/25°C

10th Sep 2026675 AMAQI
10th Sep 2026736 AMAQI
10th Sep 2026817 AMAQI
10th Sep 2026828 AMAQI
10th Sep 2026879 AMAQI
10th Sep 20267410 AMAQI
10th Sep 20265211 AMAQI
10th Sep 20263712 PMAQI
10th Sep 2026331 PMAQI
10th Sep 2026302 PMAQI
10th Sep 2026343 PMAQI
10th Sep 2026414 PMAQI
10th Sep 2026405 PMAQI
10th Sep 2026386 PMAQI
10th Sep 2026447 PMAQI
10th Sep 2026468 PMAQI
10th Sep 2026559 PMAQI
10th Sep 20265810 PMAQI
10th Sep 20267211 PMAQI
11th Sep 20267912 AMAQI
11th Sep 2026781 AMAQI
11th Sep 2026842 AMAQI
11th Sep 2026793 AMAQI
11th Sep 2026804 AMAQI

20°C16/24°C

11th Sep 2026765 AMAQI
11th Sep 2026816 AMAQI
11th Sep 2026807 AMAQI
11th Sep 2026928 AMAQI
11th Sep 2026879 AMAQI
11th Sep 20268710 AMAQI
11th Sep 20267911 AMAQI
11th Sep 20266612 PMAQI
11th Sep 2026621 PMAQI
11th Sep 2026412 PMAQI
11th Sep 2026363 PMAQI
11th Sep 2026314 PMAQI
11th Sep 2026325 PMAQI
11th Sep 2026276 PMAQI
11th Sep 2026287 PMAQI
11th Sep 2026298 PMAQI
11th Sep 2026319 PMAQI
11th Sep 20263310 PMAQI
11th Sep 20265111 PMAQI
12th Sep 20264812 AMAQI
12th Sep 2026521 AMAQI
12th Sep 2026542 AMAQI
12th Sep 2026723 AMAQI
12th Sep 2026824 AMAQI

21°C16/26°C

12th Sep 2026745 AMAQI
12th Sep 2026606 AMAQI
12th Sep 2026607 AMAQI
12th Sep 2026698 AMAQI
12th Sep 2026739 AMAQI
12th Sep 20268110 AMAQI
12th Sep 20267811 AMAQI
12th Sep 20265212 PMAQI
12th Sep 2026381 PMAQI
12th Sep 2026242 PMAQI
12th Sep 2026333 PMAQI
12th Sep 2026444 PMAQI
12th Sep 2026365 PMAQI
12th Sep 2026376 PMAQI
12th Sep 2026427 PMAQI
12th Sep 2026488 PMAQI
12th Sep 2026529 PMAQI
12th Sep 20265210 PMAQI
12th Sep 20265411 PMAQI
13th Sep 20265312 AMAQI
13th Sep 2026581 AMAQI
13th Sep 2026602 AMAQI
13th Sep 2026703 AMAQI

23°C21/27°C

13th Sep 2026695 AMAQI
13th Sep 2026746 AMAQI
13th Sep 2026747 AMAQI
13th Sep 2026768 AMAQI
13th Sep 2026749 AMAQI
13th Sep 20268010 AMAQI
13th Sep 20267811 AMAQI
13th Sep 20266712 PMAQI
13th Sep 2026311 PMAQI
13th Sep 2026362 PMAQI
13th Sep 2026403 PMAQI
13th Sep 2026404 PMAQI
13th Sep 2026465 PMAQI
13th Sep 2026546 PMAQI
13th Sep 2026627 PMAQI
13th Sep 2026868 PMAQI
13th Sep 2026839 PMAQI
13th Sep 20268810 PMAQI
13th Sep 202612011 PMAQI
14th Sep 20268412 AMAQI
14th Sep 2026921 AMAQI
14th Sep 20261422 AMAQI
14th Sep 20261463 AMAQI
14th Sep 20261304 AMAQI

25°C20/29°C

14th Sep 20261165 AMAQI
14th Sep 20261006 AMAQI
14th Sep 20261027 AMAQI
14th Sep 20261058 AMAQI
14th Sep 20261029 AMAQI
14th Sep 20268410 AMAQI
14th Sep 20267311 AMAQI
14th Sep 20266612 PMAQI
14th Sep 2026591 PMAQI
14th Sep 2026572 PMAQI
14th Sep 2026663 PMAQI
14th Sep 2026584 PMAQI
14th Sep 2026595 PMAQI
14th Sep 2026696 PMAQI
14th Sep 2026877 PMAQI
14th Sep 20261098 PMAQI
14th Sep 2026979 PMAQI
14th Sep 20269510 PMAQI
14th Sep 202613511 PMAQI
15th Sep 202613212 AMAQI
15th Sep 20261141 AMAQI
15th Sep 20261082 AMAQI
15th Sep 20261083 AMAQI
15th Sep 20261054 AMAQI

24°C22/28°C

15th Sep 20261085 AMAQI
15th Sep 20261026 AMAQI
15th Sep 2026987 AMAQI
15th Sep 2026988 AMAQI
15th Sep 2026929 AMAQI
15th Sep 202611610 AMAQI
15th Sep 202611511 AMAQI
15th Sep 202610912 PMAQI
15th Sep 2026941 PMAQI
15th Sep 2026712 PMAQI
15th Sep 2026393 PMAQI
15th Sep 2026454 PMAQI
15th Sep 2026485 PMAQI
15th Sep 2026486 PMAQI
15th Sep 2026527 PMAQI
15th Sep 2026648 PMAQI
15th Sep 2026789 PMAQI
15th Sep 20268010 PMAQI
15th Sep 20268511 PMAQI
16th Sep 20268612 AMAQI
16th Sep 2026851 AMAQI
16th Sep 2026862 AMAQI
16th Sep 2026893 AMAQI
16th Sep 2026844 AMAQI

23°C19/27°C

16th Sep 2026785 AMAQI
16th Sep 2026876 AMAQI
16th Sep 2026907 AMAQI
16th Sep 2026868 AMAQI
16th Sep 2026889 AMAQI
16th Sep 20267910 AMAQI
16th Sep 20267111 AMAQI
16th Sep 20267012 PMAQI
16th Sep 2026651 PMAQI
16th Sep 2026562 PMAQI
16th Sep 2026533 PMAQI
16th Sep 2026544 PMAQI
16th Sep 2026595 PMAQI
16th Sep 2026606 PMAQI
16th Sep 2026687 PMAQI
16th Sep 2026948 PMAQI
16th Sep 2026949 PMAQI
16th Sep 202610210 PMAQI
16th Sep 202611611 PMAQI
17th Sep 202613212 AMAQI
17th Sep 20261511 AMAQI
17th Sep 20261352 AMAQI
17th Sep 20261363 AMAQI
17th Sep 20261424 AMAQI

23°C19/27°C

17th Sep 20261525 AMAQI
17th Sep 20261526 AMAQI
17th Sep 20261567 AMAQI
17th Sep 20261548 AMAQI
17th Sep 20261569 AMAQI
17th Sep 202615110 AMAQI
17th Sep 202615011 AMAQI
17th Sep 202615612 PMAQI
17th Sep 20261551 PMAQI
17th Sep 20261492 PMAQI
17th Sep 20261353 PMAQI
17th Sep 2026994 PMAQI
17th Sep 2026735 PMAQI
17th Sep 2026666 PMAQI
17th Sep 2026507 PMAQI
17th Sep 2026388 PMAQI
17th Sep 2026339 PMAQI
17th Sep 20262910 PMAQI
17th Sep 20263111 PMAQI
18th Sep 20264212 AMAQI
18th Sep 2026491 AMAQI
18th Sep 2026382 AMAQI
18th Sep 2026383 AMAQI
18th Sep 2026384 AMAQI

20°C17/23°C

18th Sep 2026405 AMAQI
18th Sep 2026496 AMAQI
18th Sep 2026527 AMAQI
18th Sep 2026628 AMAQI
18th Sep 2026589 AMAQI
18th Sep 20264210 AMAQI
18th Sep 20263111 AMAQI
18th Sep 20262912 PMAQI
18th Sep 2026381 PMAQI
18th Sep 2026662 PMAQI
18th Sep 2026663 PMAQI
18th Sep 2026654 PMAQI
18th Sep 2026705 PMAQI
18th Sep 2026626 PMAQI
18th Sep 2026627 PMAQI
18th Sep 2026688 PMAQI
18th Sep 2026709 PMAQI
18th Sep 20267810 PMAQI
18th Sep 20268111 PMAQI
19th Sep 20268212 AMAQI
19th Sep 2026861 AMAQI
19th Sep 2026982 AMAQI
19th Sep 2026963 AMAQI
19th Sep 20261144 AMAQI

20°C19/22°C

19th Sep 20261105 AMAQI
19th Sep 20261096 AMAQI
19th Sep 20261047 AMAQI
19th Sep 20261008 AMAQI
19th Sep 2026949 AMAQI
19th Sep 20268610 AMAQI
19th Sep 20269411 AMAQI
19th Sep 20269812 PMAQI
19th Sep 2026891 PMAQI
19th Sep 2026682 PMAQI
19th Sep 2026583 PMAQI
19th Sep 2026604 PMAQI
19th Sep 2026585 PMAQI
19th Sep 2026536 PMAQI
19th Sep 2026527 PMAQI
19th Sep 2026548 PMAQI
19th Sep 2026549 PMAQI
19th Sep 20264610 PMAQI
19th Sep 20263611 PMAQI
20th Sep 20264612 AMAQI
20th Sep 2026461 AMAQI
20th Sep 2026532 AMAQI
20th Sep 2026553 AMAQI
20th Sep 2026584 AMAQI

24°C21/28°C

20th Sep 2026575 AMAQI
20th Sep 2026566 AMAQI
20th Sep 2026657 AMAQI
20th Sep 2026648 AMAQI
20th Sep 2026639 AMAQI
20th Sep 20267510 AMAQI
20th Sep 20269711 AMAQI
20th Sep 20269412 PMAQI
20th Sep 2026921 PMAQI
20th Sep 2026802 PMAQI
20th Sep 2026763 PMAQI
20th Sep 2026674 PMAQI
20th Sep 2026705 PMAQI
20th Sep 2026746 PMAQI
20th Sep 2026717 PMAQI
20th Sep 2026818 PMAQI
20th Sep 2026949 PMAQI
20th Sep 20268810 PMAQI
20th Sep 20268211 PMAQI
21st Sep 20268112 AMAQI
21st Sep 2026761 AMAQI
21st Sep 2026652 AMAQI
21st Sep 2026703 AMAQI
21st Sep 2026744 AMAQI

24°C22/26°C

21st Sep 2026825 AMAQI
21st Sep 20261026 AMAQI
21st Sep 2026997 AMAQI
21st Sep 2026908 AMAQI
21st Sep 2026839 AMAQI
21st Sep 20268010 AMAQI
21st Sep 20265411 AMAQI
21st Sep 20264712 PMAQI
21st Sep 2026401 PMAQI
21st Sep 2026462 PMAQI
21st Sep 2026523 PMAQI
21st Sep 2026714 PMAQI
21st Sep 2026835 PMAQI
21st Sep 20261366 PMAQI
21st Sep 20261157 PMAQI
21st Sep 20261198 PMAQI
21st Sep 20261329 PMAQI
21st Sep 202613510 PMAQI
21st Sep 202613211 PMAQI
22nd Sep 202614212 AMAQI
22nd Sep 2026911 AMAQI
22nd Sep 2026722 AMAQI
22nd Sep 20261263 AMAQI
22nd Sep 20261354 AMAQI

22°C21/24°C

22nd Sep 2026845 AMAQI
22nd Sep 2026366 AMAQI
22nd Sep 2026367 AMAQI
22nd Sep 2026558 AMAQI
22nd Sep 2026849 AMAQI
22nd Sep 202610010 AMAQI
22nd Sep 202610211 AMAQI
22nd Sep 202610612 PMAQI
22nd Sep 20261261 PMAQI
22nd Sep 20261382 PMAQI
22nd Sep 20261303 PMAQI
22nd Sep 20261284 PMAQI
22nd Sep 20261185 PMAQI
22nd Sep 20261086 PMAQI
22nd Sep 20261087 PMAQI
22nd Sep 20261188 PMAQI
22nd Sep 20261309 PMAQI
22nd Sep 202613210 PMAQI
22nd Sep 202612611 PMAQI
23rd Sep 202613112 AMAQI
23rd Sep 20261281 AMAQI
23rd Sep 20261222 AMAQI
23rd Sep 20261303 AMAQI
23rd Sep 20261354 AMAQI

21°C20/22°C

23rd Sep 20261325 AMAQI
23rd Sep 20261226 AMAQI
23rd Sep 20261187 AMAQI
23rd Sep 20261168 AMAQI
23rd Sep 20261059 AMAQI
23rd Sep 202610810 AMAQI
23rd Sep 202610911 AMAQI
23rd Sep 202610512 PMAQI
23rd Sep 2026951 PMAQI
23rd Sep 20261032 PMAQI
23rd Sep 2026813 PMAQI
23rd Sep 2026794 PMAQI
23rd Sep 2026885 PMAQI
23rd Sep 2026906 PMAQI
23rd Sep 20261087 PMAQI
23rd Sep 20261048 PMAQI
23rd Sep 20261269 PMAQI
23rd Sep 202614110 PMAQI
23rd Sep 202613811 PMAQI
24th Sep 202614712 AMAQI
24th Sep 20261321 AMAQI
24th Sep 20261202 AMAQI
24th Sep 20261093 AMAQI
24th Sep 20261264 AMAQI

23°C21/26°C

24th Sep 20261285 AMAQI
24th Sep 20261306 AMAQI
24th Sep 20261157 AMAQI
24th Sep 20261248 AMAQI
24th Sep 20261069 AMAQI
24th Sep 202610810 AMAQI
24th Sep 202610611 AMAQI
24th Sep 20269212 PMAQI
24th Sep 2026921 PMAQI
24th Sep 2026872 PMAQI
24th Sep 2026883 PMAQI
24th Sep 2026784 PMAQI
24th Sep 2026685 PMAQI
24th Sep 2026706 PMAQI
24th Sep 2026677 PMAQI
24th Sep 2026748 PMAQI
24th Sep 2026969 PMAQI
24th Sep 20269910 PMAQI
24th Sep 20269611 PMAQI
25th Sep 20269312 AMAQI
25th Sep 2026861 AMAQI
25th Sep 2026802 AMAQI
25th Sep 2026723 AMAQI
25th Sep 2026734 AMAQI

24°C22/28°C

25th Sep 2026705 AMAQI
25th Sep 2026736 AMAQI
25th Sep 2026827 AMAQI
25th Sep 2026888 AMAQI
25th Sep 20261119 AMAQI
25th Sep 202610210 AMAQI
25th Sep 20269711 AMAQI
25th Sep 20268812 PMAQI
25th Sep 2026741 PMAQI
25th Sep 2026582 PMAQI
25th Sep 2026443 PMAQI
25th Sep 2026504 PMAQI
25th Sep 2026545 PMAQI
25th Sep 2026646 PMAQI
25th Sep 20261387 PMAQI
25th Sep 20261518 PMAQI
25th Sep 20261299 PMAQI
25th Sep 20269610 PMAQI
25th Sep 20269011 PMAQI
26th Sep 20267312 AMAQI
26th Sep 2026621 AMAQI
26th Sep 2026632 AMAQI
26th Sep 2026643 AMAQI
26th Sep 2026524 AMAQI

25°C22/30°C

26th Sep 2026665 AMAQI
26th Sep 2026826 AMAQI
26th Sep 2026677 AMAQI
26th Sep 2026688 AMAQI
26th Sep 2026509 AMAQI
26th Sep 20264810 AMAQI
26th Sep 20263411 AMAQI
26th Sep 20261412 PMAQI
26th Sep 2026111 PMAQI
26th Sep 2026102 PMAQI
26th Sep 202683 PMAQI
26th Sep 202684 PMAQI
26th Sep 202685 PMAQI
26th Sep 202686 PMAQI
26th Sep 2026107 PMAQI
26th Sep 202688 PMAQI
26th Sep 202699 PMAQI
26th Sep 20261110 PMAQI
26th Sep 20261111 PMAQI
27th Sep 2026912 AMAQI
27th Sep 2026141 AMAQI
27th Sep 2026272 AMAQI
27th Sep 2026473 AMAQI
27th Sep 2026604 AMAQI

22°C21/24°C

27th Sep 2026405 AMAQI
27th Sep 2026236 AMAQI
27th Sep 2026257 AMAQI
27th Sep 2026178 AMAQI
27th Sep 202699 AMAQI
27th Sep 20261310 AMAQI
27th Sep 20261911 AMAQI
27th Sep 20261612 PMAQI
27th Sep 202681 PMAQI
27th Sep 202682 PMAQI
27th Sep 202683 PMAQI
27th Sep 202684 PMAQI
27th Sep 202685 PMAQI
27th Sep 202686 PMAQI
27th Sep 202687 PMAQI
27th Sep 2026118 PMAQI
27th Sep 2026129 PMAQI
27th Sep 20261010 PMAQI
27th Sep 20261211 PMAQI
28th Sep 20261212 AMAQI
28th Sep 2026151 AMAQI
28th Sep 2026142 AMAQI
28th Sep 202683 AMAQI
28th Sep 202684 AMAQI

23°C22/24°C

28th Sep 202685 AMAQI
5 AM
28th Sep 2026146 AMAQI
28th Sep 2026237 AMAQI
28th Sep 2026278 AMAQI
28th Sep 2026259 AMAQI
28th Sep 20262910 AMAQI
28th Sep 20262511 AMAQI
11 AM
28th Sep 20262712 PMAQI
28th Sep 2026271 PMAQI
28th Sep 2026312 PMAQI
28th Sep 2026363 PMAQI
28th Sep 2026334 PMAQI
28th Sep 2026345 PMAQI
28th Sep 2026276 PMAQI
6 PM
28th Sep 2026257 PMAQI
28th Sep 2026308 PMAQI
28th Sep 2026329 PMAQI
28th Sep 20263210 PMAQI
28th Sep 20262311 PMAQI
11 PM
4 AM

21°C20/22°C

Day time
Avg. Highest Time
8 AM - 10 AM

69AQI

3 hours / Day
90 hours / Month
Avg. Lowest Time
3 PM - 5 PM

47AQI

3 hours / Day
90 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 8 AM to 10 AM (Avg. 69), while the lowest AQI was between 3 PM to 5 PM (Avg. 47).
Night time
Avg. Highest Time
3 AM - 4 AM

68AQI

2 hours / Day
60 hours / Month
Avg. Lowest Time
7 PM

53AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 3 AM to 4 AM (Avg. 68), while the lowest AQI was between 7 PM to 7 PM (Avg. 53).

2026 Days Vs Air Quality

High Tech Zone, Hefei, Anhui, China

2026

39%

106

36%

98

23%

62

2%

5

Total number of days with different AQI categories in last 271 days in 2026 (94 days remaining)

Good
106 Days
Moderate
98 Days
Poor
62 Days
Unhealthy
5 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 39%

Health Risk Level:

High

In 2026, 39% of 271 days were within WHO’s safe air quality limits. The risk of health issues is High, with respiratory problems, heart disease, skin issues, and stress being more common, particularly among children and the elderly.

Annual Air Quality Insights

High Tech Zone, Hefei, Anhui, China

AQI levels in 2026

AQI (US)
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 2026
-1th undefined 2026
-1th undefined 2026
-1th undefined 2026
1st January 2026
56AQI (US)
2nd January 2026
124AQI (US)
3rd January 2026
141AQI (US)
4th January 2026
153AQI (US)
5th January 2026
138AQI (US)
6th January 2026
114AQI (US)
7th January 2026
64AQI (US)
8th January 2026
98AQI (US)
9th January 2026
100AQI (US)
10th January 2026
101AQI (US)
11th January 2026
67AQI (US)
12th January 2026
84AQI (US)
13th January 2026
129AQI (US)
14th January 2026
121AQI (US)
15th January 2026
122AQI (US)
16th January 2026
132AQI (US)
17th January 2026
176AQI (US)
18th January 2026
160AQI (US)
19th January 2026
48AQI (US)
20th January 2026
80AQI (US)
21st January 2026
96AQI (US)
22nd January 2026
73AQI (US)
23rd January 2026
112AQI (US)
24th January 2026
147AQI (US)
25th January 2026
159AQI (US)
26th January 2026
114AQI (US)
27th January 2026
88AQI (US)
28th January 2026
133AQI (US)
29th January 2026
132AQI (US)
30th January 2026
66AQI (US)
31st January 2026
65AQI (US)
1st February 2026
71AQI (US)
2nd February 2026
95AQI (US)
3rd February 2026
148AQI (US)
4th February 2026
135AQI (US)
5th February 2026
129AQI (US)
6th February 2026
91AQI (US)
7th February 2026
60AQI (US)
8th February 2026
84AQI (US)
9th February 2026
71AQI (US)
10th February 2026
97AQI (US)
11th February 2026
110AQI (US)
12th February 2026
135AQI (US)
13th February 2026
112AQI (US)
14th February 2026
125AQI (US)
15th February 2026
117AQI (US)
16th February 2026
50AQI (US)
17th February 2026
139AQI (US)
18th February 2026
110AQI (US)
19th February 2026
121AQI (US)
20th February 2026
104AQI (US)
21st February 2026
67AQI (US)
22nd February 2026
70AQI (US)
23rd February 2026
81AQI (US)
24th February 2026
53AQI (US)
25th February 2026
68AQI (US)
26th February 2026
61AQI (US)
27th February 2026
54AQI (US)
28th February 2026
71AQI (US)
1st March 2026
60AQI (US)
2nd March 2026
27AQI (US)
3rd March 2026
112AQI (US)
4th March 2026
108AQI (US)
5th March 2026
104AQI (US)
6th March 2026
113AQI (US)
7th March 2026
96AQI (US)
8th March 2026
115AQI (US)
9th March 2026
135AQI (US)
10th March 2026
138AQI (US)
11th March 2026
115AQI (US)
12th March 2026
131AQI (US)
13th March 2026
130AQI (US)
14th March 2026
117AQI (US)
15th March 2026
138AQI (US)
16th March 2026
86AQI (US)
17th March 2026
97AQI (US)
18th March 2026
85AQI (US)
19th March 2026
115AQI (US)
20th March 2026
151AQI (US)
21st March 2026
145AQI (US)
22nd March 2026
101AQI (US)
23rd March 2026
118AQI (US)
24th March 2026
107AQI (US)
25th March 2026
117AQI (US)
26th March 2026
115AQI (US)
27th March 2026
133AQI (US)
28th March 2026
91AQI (US)
29th March 2026
90AQI (US)
30th March 2026
79AQI (US)
31st March 2026
143AQI (US)
1st April 2026
125AQI (US)
2nd April 2026
89AQI (US)
3rd April 2026
72AQI (US)
4th April 2026
61AQI (US)
5th April 2026
72AQI (US)
6th April 2026
97AQI (US)
7th April 2026
62AQI (US)
8th April 2026
42AQI (US)
9th April 2026
63AQI (US)
10th April 2026
40AQI (US)
11th April 2026
97AQI (US)
12th April 2026
50AQI (US)
13th April 2026
46AQI (US)
14th April 2026
43AQI (US)
15th April 2026
74AQI (US)
16th April 2026
103AQI (US)
17th April 2026
96AQI (US)
18th April 2026
78AQI (US)
19th April 2026
73AQI (US)
20th April 2026
44AQI (US)
21st April 2026
58AQI (US)
22nd April 2026
17AQI (US)
23rd April 2026
17AQI (US)
24th April 2026
49AQI (US)
25th April 2026
53AQI (US)
26th April 2026
53AQI (US)
27th April 2026
77AQI (US)
28th April 2026
48AQI (US)
29th April 2026
35AQI (US)
30th April 2026
43AQI (US)
1st May 2026
41AQI (US)
2nd May 2026
57AQI (US)
3rd May 2026
46AQI (US)
4th May 2026
21AQI (US)
5th May 2026
33AQI (US)
6th May 2026
56AQI (US)
7th May 2026
74AQI (US)
8th May 2026
34AQI (US)
9th May 2026
45AQI (US)
10th May 2026
61AQI (US)
11th May 2026
69AQI (US)
12th May 2026
91AQI (US)
13th May 2026
118AQI (US)
14th May 2026
107AQI (US)
15th May 2026
36AQI (US)
16th May 2026
75AQI (US)
17th May 2026
62AQI (US)
18th May 2026
55AQI (US)
19th May 2026
52AQI (US)
20th May 2026
63AQI (US)
21st May 2026
71AQI (US)
22nd May 2026
81AQI (US)
23rd May 2026
73AQI (US)
24th May 2026
70AQI (US)
25th May 2026
65AQI (US)
26th May 2026
47AQI (US)
27th May 2026
33AQI (US)
28th May 2026
52AQI (US)
29th May 2026
84AQI (US)
30th May 2026
74AQI (US)
31st May 2026
86AQI (US)
1st June 2026
107AQI (US)
2nd June 2026
114AQI (US)
3rd June 2026
132AQI (US)
4th June 2026
104AQI (US)
5th June 2026
61AQI (US)
6th June 2026
37AQI (US)
7th June 2026
87AQI (US)
8th June 2026
59AQI (US)
9th June 2026
41AQI (US)
10th June 2026
43AQI (US)
11th June 2026
48AQI (US)
12th June 2026
70AQI (US)
13th June 2026
43AQI (US)
14th June 2026
45AQI (US)
15th June 2026
44AQI (US)
16th June 2026
44AQI (US)
17th June 2026
58AQI (US)
18th June 2026
87AQI (US)
19th June 2026
23AQI (US)
20th June 2026
13AQI (US)
21st June 2026
44AQI (US)
22nd June 2026
18AQI (US)
23rd June 2026
10AQI (US)
24th June 2026
21AQI (US)
25th June 2026
41AQI (US)
26th June 2026
53AQI (US)
27th June 2026
105AQI (US)
28th June 2026
105AQI (US)
29th June 2026
125AQI (US)
30th June 2026
36AQI (US)
1st July 2026
38AQI (US)
2nd July 2026
40AQI (US)
3rd July 2026
10AQI (US)
4th July 2026
25AQI (US)
5th July 2026
19AQI (US)
6th July 2026
19AQI (US)
7th July 2026
20AQI (US)
8th July 2026
24AQI (US)
9th July 2026
24AQI (US)
10th July 2026
28AQI (US)
11th July 2026
44AQI (US)
12th July 2026
18AQI (US)
13th July 2026
20AQI (US)
14th July 2026
48AQI (US)
15th July 2026
16AQI (US)
16th July 2026
18AQI (US)
17th July 2026
31AQI (US)
18th July 2026
53AQI (US)
19th July 2026
48AQI (US)
20th July 2026
13AQI (US)
21st July 2026
22AQI (US)
22nd July 2026
31AQI (US)
23rd July 2026
24AQI (US)
24th July 2026
27AQI (US)
25th July 2026
38AQI (US)
26th July 2026
69AQI (US)
27th July 2026
29AQI (US)
28th July 2026
28AQI (US)
29th July 2026
14AQI (US)
30th July 2026
26AQI (US)
31st July 2026
27AQI (US)
1st August 2026
24AQI (US)
2nd August 2026
32AQI (US)
3rd August 2026
35AQI (US)
4th August 2026
60AQI (US)
5th August 2026
77AQI (US)
6th August 2026
48AQI (US)
7th August 2026
45AQI (US)
8th August 2026
45AQI (US)
9th August 2026
44AQI (US)
10th August 2026
9AQI (US)
11th August 2026
21AQI (US)
12th August 2026
27AQI (US)
13th August 2026
29AQI (US)
14th August 2026
27AQI (US)
15th August 2026
38AQI (US)
16th August 2026
47AQI (US)
17th August 2026
38AQI (US)
18th August 2026
61AQI (US)
19th August 2026
77AQI (US)
20th August 2026
36AQI (US)
21st August 2026
30AQI (US)
22nd August 2026
28AQI (US)
23rd August 2026
27AQI (US)
24th August 2026
25AQI (US)
25th August 2026
24AQI (US)
26th August 2026
29AQI (US)
27th August 2026
61AQI (US)
28th August 2026
34AQI (US)
29th August 2026
36AQI (US)
30th August 2026
40AQI (US)
31st August 2026
49AQI (US)
1st September 2026
39AQI (US)
2nd September 2026
22AQI (US)
3rd September 2026
29AQI (US)
4th September 2026
30AQI (US)
5th September 2026
43AQI (US)
6th September 2026
39AQI (US)
7th September 2026
43AQI (US)
8th September 2026
51AQI (US)
9th September 2026
49AQI (US)
10th September 2026
55AQI (US)
11th September 2026
60AQI (US)
12th September 2026
55AQI (US)
13th September 2026
66AQI (US)
14th September 2026
93AQI (US)
15th September 2026
88AQI (US)
16th September 2026
79AQI (US)
17th September 2026
116AQI (US)
18th September 2026
54AQI (US)
19th September 2026
79AQI (US)
20th September 2026
71AQI (US)
21st September 2026
86AQI (US)
22nd September 2026
105AQI (US)
23rd September 2026
113AQI (US)
24th September 2026
102AQI (US)
25th September 2026
86AQI (US)
26th September 2026
35AQI (US)
27th September 2026
18AQI (US)
28th September 2026
24AQI (US)
29th September 2026
30th September 2026
1st October 2026
2nd October 2026
3rd October 2026
4th October 2026
5th October 2026
6th October 2026
7th October 2026
8th October 2026
9th October 2026
10th October 2026
11th October 2026
12th October 2026
13th October 2026
14th October 2026
15th October 2026
16th October 2026
17th October 2026
18th October 2026
19th October 2026
20th October 2026
21st October 2026
22nd October 2026
23rd October 2026
24th October 2026
25th October 2026
26th October 2026
27th October 2026
28th October 2026
29th October 2026
30th October 2026
31st October 2026
1st November 2026
2nd November 2026
3rd November 2026
4th November 2026
5th November 2026
6th November 2026
7th November 2026
8th November 2026
9th November 2026
10th November 2026
11th November 2026
12th November 2026
13th November 2026
14th November 2026
15th November 2026
16th November 2026
17th November 2026
18th November 2026
19th November 2026
20th November 2026
21st November 2026
22nd November 2026
23rd November 2026
24th November 2026
25th November 2026
26th November 2026
27th November 2026
28th November 2026
29th November 2026
30th November 2026
1st December 2026
2nd December 2026
3rd December 2026
4th December 2026
5th December 2026
6th December 2026
7th December 2026
8th December 2026
9th December 2026
10th December 2026
11th December 2026
12th December 2026
13th December 2026
14th December 2026
15th December 2026
16th December 2026
17th December 2026
18th December 2026
19th December 2026
20th December 2026
21st December 2026
22nd December 2026
23rd December 2026
24th December 2026
25th December 2026
26th December 2026
27th December 2026
28th December 2026
29th December 2026
30th December 2026
31st December 2026

109AQI (US)

94AQI (US)

110AQI (US)

63AQI (US)

62AQI (US)

61AQI (US)

29AQI (US)

39AQI (US)

62AQI (US)

No. of days

Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days

202670AQI (US)

1
12
14
4
1
15
12
1
8
21
1
12
16
2
9
20
2
16
7
7
29
2
26
5
11
13
4
106
98
62
5

Highest AQI (US) recorded in

March

110AQI (US)

Lowest AQI (US) recorded in

July

29AQI (US)

202591AQI (US)

8
15
8
6
20
2
15
15
1
20
9
1
20
11
10
20
11
20
9
22
4
26
1
17
13
1
10
15
4
11
12
8
36
195
110
23
1

Highest AQI (US) recorded in

January

130AQI (US)

Lowest AQI (US) recorded in

August

53AQI (US)

202493AQI (US)

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 (US) recorded in

January

134AQI (US)

Lowest AQI (US) recorded in

July

47AQI (US)

202396AQI (US)

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 (US) recorded in

January

126AQI (US)

Lowest AQI (US) recorded in

July

58AQI (US)

202293AQI (US)

1
4
10
15
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
28
2

Highest AQI (US) recorded in

January

139AQI (US)

Lowest AQI (US) recorded in

July

60AQI (US)

202195AQI (US)

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 (US) recorded in

January

135AQI (US)

Lowest AQI (US) recorded in

July

55AQI (US)

202093AQI (US)

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 (US) recorded in

December

146AQI (US)

Lowest AQI (US) recorded in

August

66AQI (US)

Most & Least Polluted Years Over the Last 7 Years

Most Polluted Year Recorded
2023(Avg.)
96AQI (US)
Least Polluted Year Recorded
2026(Avg.)
70AQI (US)

High Tech Zone's annual 2026 AQI (US) (70) shows an average percentage change of -25.1% (improved AQI (US)) compared to previous years: 2020 (93), 2021 (95), 2022 (93), 2023 (96), 2024 (93), 2025 (91).