Country Background
HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

Changshu, Jiangsu, 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

Changshu, Jiangsu, China

2024
2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
7th Sep 2024
94AQI
Lowest AQI recorded on
11th Sep 2024
18AQI

Same Day Analysis (27th September):
On this day, AQI across the 3 years varied significantly: 2026 ranks 3rd highest AQI at 37 of Good air quality, showing improvement over 2025 and 2024 on the same day.

Day & Night AQI Trend: 26th Sep - 27th Sep 2026

Changshu, Jiangsu, China

AQI
Day
Night
.

5 AM26th Sep 2026

6 PM

4 AM27th Sep 2026

Day time
Avg. Highest Time
6AM26th Sep

118AQI

Avg. Lowest Time
5PM26th Sep

30AQI

Night time
Avg. Highest Time
2AM27th Sep

44AQI

Avg. Lowest Time
11PM26th Sep

22AQI

In the last 24 hours,

Changshu's AQI reached its highest point of 118 at 6 AM during the Day, while the lowest point, 22, was recorded at 11 PM during the Night between 26th Sep and 27th Sep 2026.

Day & Night AQI Trend : Aug - Sep 2026

Changshu, Jiangsu, China

AugSep
29th - 30th30th - 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
Day
Night
29th Aug 2026525 AMAQI
29th Aug 2026546 AMAQI
29th Aug 2026547 AMAQI
29th Aug 2026628 AMAQI
29th Aug 2026749 AMAQI
29th Aug 20265710 AMAQI
29th Aug 20265911 AMAQI
29th Aug 20265112 PMAQI
29th Aug 2026521 PMAQI
29th Aug 2026442 PMAQI
29th Aug 2026373 PMAQI
29th Aug 2026444 PMAQI
29th Aug 2026375 PMAQI
29th Aug 2026406 PMAQI
29th Aug 2026427 PMAQI
29th Aug 2026508 PMAQI
29th Aug 2026569 PMAQI
29th Aug 20265810 PMAQI
29th Aug 20264611 PMAQI
30th Aug 20264812 AMAQI
30th Aug 2026501 AMAQI
30th Aug 2026542 AMAQI
30th Aug 2026523 AMAQI
30th Aug 2026504 AMAQI

28°C26/32°C

30th Aug 2026545 AMAQI
30th Aug 2026516 AMAQI
30th Aug 2026497 AMAQI
30th Aug 2026508 AMAQI
30th Aug 2026589 AMAQI
30th Aug 20267010 AMAQI
30th Aug 20266011 AMAQI
30th Aug 20265212 PMAQI
30th Aug 2026481 PMAQI
30th Aug 2026532 PMAQI
30th Aug 2026503 PMAQI
30th Aug 2026524 PMAQI
30th Aug 2026565 PMAQI
30th Aug 2026526 PMAQI
30th Aug 2026507 PMAQI
30th Aug 2026588 PMAQI
30th Aug 2026529 PMAQI
30th Aug 20265810 PMAQI
30th Aug 20265911 PMAQI
31st Aug 20265612 AMAQI
31st Aug 2026561 AMAQI
31st Aug 2026572 AMAQI
31st Aug 2026573 AMAQI
31st Aug 2026544 AMAQI

28°C26/31°C

31st Aug 2026525 AMAQI
31st Aug 2026606 AMAQI
31st Aug 2026497 AMAQI
31st Aug 2026508 AMAQI
31st Aug 2026479 AMAQI
31st Aug 20265810 AMAQI
31st Aug 20265911 AMAQI
31st Aug 20264112 PMAQI
31st Aug 2026561 PMAQI
31st Aug 2026522 PMAQI
31st Aug 2026503 PMAQI
31st Aug 2026534 PMAQI
31st Aug 2026475 PMAQI
31st Aug 2026566 PMAQI
31st Aug 2026377 PMAQI
31st Aug 2026598 PMAQI
31st Aug 2026569 PMAQI
31st Aug 20265210 PMAQI
31st Aug 20264711 PMAQI
1st Sep 20264212 AMAQI
1st Sep 2026281 AMAQI
1st Sep 2026222 AMAQI
1st Sep 2026223 AMAQI
1st Sep 2026324 AMAQI

28°C25/32°C

1st Sep 2026315 AMAQI
1st Sep 2026296 AMAQI
1st Sep 2026277 AMAQI
1st Sep 2026298 AMAQI
1st Sep 2026219 AMAQI
1st Sep 20262410 AMAQI
1st Sep 20262611 AMAQI
1st Sep 20262612 PMAQI
1st Sep 2026261 PMAQI
1st Sep 2026272 PMAQI
1st Sep 2026273 PMAQI
1st Sep 2026294 PMAQI
1st Sep 2026295 PMAQI
1st Sep 2026256 PMAQI
1st Sep 2026257 PMAQI
1st Sep 2026258 PMAQI
1st Sep 2026249 PMAQI
1st Sep 20262410 PMAQI
1st Sep 20262911 PMAQI
2nd Sep 20262812 AMAQI
2nd Sep 2026321 AMAQI
2nd Sep 2026252 AMAQI
2nd Sep 2026223 AMAQI
2nd Sep 2026264 AMAQI

27°C25/31°C

2nd Sep 2026225 AMAQI
2nd Sep 2026226 AMAQI
2nd Sep 2026337 AMAQI
2nd Sep 2026338 AMAQI
2nd Sep 2026269 AMAQI
2nd Sep 20262210 AMAQI
2nd Sep 20262411 AMAQI
2nd Sep 20262212 PMAQI
2nd Sep 2026221 PMAQI
2nd Sep 2026242 PMAQI
2nd Sep 2026283 PMAQI
2nd Sep 2026294 PMAQI
2nd Sep 2026295 PMAQI
2nd Sep 2026256 PMAQI
2nd Sep 2026247 PMAQI
2nd Sep 2026228 PMAQI
2nd Sep 2026249 PMAQI
2nd Sep 20262210 PMAQI
2nd Sep 20262111 PMAQI
3rd Sep 20262512 AMAQI
3rd Sep 2026211 AMAQI
3rd Sep 2026212 AMAQI
3rd Sep 2026233 AMAQI
3rd Sep 2026234 AMAQI

25°C25/26°C

3rd Sep 2026255 AMAQI
3rd Sep 2026276 AMAQI
3rd Sep 2026297 AMAQI
3rd Sep 2026258 AMAQI
3rd Sep 2026299 AMAQI
3rd Sep 20263210 AMAQI
3rd Sep 20262911 AMAQI
3rd Sep 20262512 PMAQI
3rd Sep 2026291 PMAQI
3rd Sep 2026292 PMAQI
3rd Sep 2026293 PMAQI
3rd Sep 2026264 PMAQI
3rd Sep 2026295 PMAQI
3rd Sep 2026296 PMAQI
3rd Sep 2026357 PMAQI
3rd Sep 2026348 PMAQI
3rd Sep 2026399 PMAQI
3rd Sep 20264010 PMAQI
3rd Sep 20264311 PMAQI
4th Sep 20265012 AMAQI
4th Sep 2026481 AMAQI
4th Sep 2026502 AMAQI
4th Sep 2026503 AMAQI
4th Sep 2026524 AMAQI

26°C24/28°C

4th Sep 2026485 AMAQI
4th Sep 2026456 AMAQI
4th Sep 2026517 AMAQI
4th Sep 2026488 AMAQI
4th Sep 2026529 AMAQI
4th Sep 20265710 AMAQI
4th Sep 20266111 AMAQI
4th Sep 20265312 PMAQI
4th Sep 2026551 PMAQI
4th Sep 2026512 PMAQI
4th Sep 2026333 PMAQI
4th Sep 2026294 PMAQI
4th Sep 2026315 PMAQI
4th Sep 2026616 PMAQI
4th Sep 2026597 PMAQI
4th Sep 2026618 PMAQI
4th Sep 2026629 PMAQI
4th Sep 20265810 PMAQI
4th Sep 20265411 PMAQI
5th Sep 20266212 AMAQI
5th Sep 2026621 AMAQI
5th Sep 2026622 AMAQI
5th Sep 2026633 AMAQI
5th Sep 2026644 AMAQI

26°C24/28°C

5th Sep 2026595 AMAQI
5th Sep 2026386 AMAQI
5th Sep 2026237 AMAQI
5th Sep 2026388 AMAQI
5th Sep 2026469 AMAQI
5th Sep 20266310 AMAQI
5th Sep 20264211 AMAQI
5th Sep 20262612 PMAQI
5th Sep 2026241 PMAQI
5th Sep 2026242 PMAQI
5th Sep 2026293 PMAQI
5th Sep 2026214 PMAQI
5th Sep 2026255 PMAQI
5th Sep 2026256 PMAQI
5th Sep 2026257 PMAQI
5th Sep 2026258 PMAQI
5th Sep 2026259 PMAQI
5th Sep 20262210 PMAQI
5th Sep 20262211 PMAQI
6th Sep 20262212 AMAQI
6th Sep 2026261 AMAQI
6th Sep 2026242 AMAQI
6th Sep 2026273 AMAQI
6th Sep 2026344 AMAQI

25°C23/29°C

6th Sep 2026495 AMAQI
6th Sep 2026566 AMAQI
6th Sep 2026597 AMAQI
6th Sep 2026578 AMAQI
6th Sep 2026669 AMAQI
6th Sep 20265610 AMAQI
6th Sep 20262611 AMAQI
6th Sep 20262412 PMAQI
6th Sep 2026241 PMAQI
6th Sep 2026282 PMAQI
6th Sep 2026413 PMAQI
6th Sep 2026404 PMAQI
6th Sep 2026275 PMAQI
6th Sep 2026266 PMAQI
6th Sep 2026297 PMAQI
6th Sep 2026258 PMAQI
6th Sep 2026249 PMAQI
6th Sep 20262110 PMAQI
6th Sep 20262211 PMAQI
7th Sep 20262112 AMAQI
7th Sep 2026261 AMAQI
7th Sep 2026282 AMAQI
7th Sep 2026263 AMAQI
7th Sep 2026224 AMAQI

25°C22/29°C

7th Sep 2026255 AMAQI
7th Sep 2026226 AMAQI
7th Sep 2026247 AMAQI
7th Sep 2026398 AMAQI
7th Sep 2026339 AMAQI
7th Sep 20262210 AMAQI
7th Sep 20262311 AMAQI
7th Sep 20265712 PMAQI
7th Sep 2026641 PMAQI
7th Sep 2026662 PMAQI
7th Sep 2026643 PMAQI
7th Sep 2026644 PMAQI
7th Sep 2026625 PMAQI
7th Sep 2026556 PMAQI
7th Sep 2026597 PMAQI
7th Sep 2026648 PMAQI
7th Sep 2026769 PMAQI
7th Sep 20267110 PMAQI
7th Sep 20267811 PMAQI
8th Sep 20267012 AMAQI
8th Sep 2026741 AMAQI
8th Sep 2026762 AMAQI
8th Sep 2026753 AMAQI
8th Sep 2026714 AMAQI

24°C21/29°C

8th Sep 2026735 AMAQI
8th Sep 2026706 AMAQI
8th Sep 2026727 AMAQI
8th Sep 2026738 AMAQI
8th Sep 2026749 AMAQI
8th Sep 20268410 AMAQI
8th Sep 20268011 AMAQI
8th Sep 20266712 PMAQI
8th Sep 2026701 PMAQI
8th Sep 2026612 PMAQI
8th Sep 2026483 PMAQI
8th Sep 2026284 PMAQI
8th Sep 2026295 PMAQI
8th Sep 2026286 PMAQI
8th Sep 2026377 PMAQI
8th Sep 2026748 PMAQI
8th Sep 2026759 PMAQI
8th Sep 20267610 PMAQI
8th Sep 20267611 PMAQI
9th Sep 20268312 AMAQI
9th Sep 2026821 AMAQI
9th Sep 2026652 AMAQI
9th Sep 2026623 AMAQI
9th Sep 2026674 AMAQI

24°C20/28°C

9th Sep 2026685 AMAQI
9th Sep 2026706 AMAQI
9th Sep 2026647 AMAQI
9th Sep 2026668 AMAQI
9th Sep 2026489 AMAQI
9th Sep 20262810 AMAQI
9th Sep 20262711 AMAQI
9th Sep 20263112 PMAQI
9th Sep 2026291 PMAQI
9th Sep 2026252 PMAQI
9th Sep 2026293 PMAQI
9th Sep 2026294 PMAQI
9th Sep 2026345 PMAQI
9th Sep 2026366 PMAQI
9th Sep 2026297 PMAQI
9th Sep 2026268 PMAQI
9th Sep 2026259 PMAQI
9th Sep 20262510 PMAQI
9th Sep 20262411 PMAQI
10th Sep 20262412 AMAQI
10th Sep 2026241 AMAQI
10th Sep 2026242 AMAQI
10th Sep 2026263 AMAQI
10th Sep 2026274 AMAQI

23°C19/25°C

10th Sep 2026285 AMAQI
10th Sep 2026286 AMAQI
10th Sep 2026287 AMAQI
10th Sep 2026308 AMAQI
10th Sep 2026359 AMAQI
10th Sep 20263610 AMAQI
10th Sep 20263411 AMAQI
10th Sep 20263512 PMAQI
10th Sep 2026381 PMAQI
10th Sep 2026372 PMAQI
10th Sep 2026363 PMAQI
10th Sep 2026404 PMAQI
10th Sep 2026445 PMAQI
10th Sep 2026506 PMAQI
10th Sep 2026507 PMAQI
10th Sep 2026538 PMAQI
10th Sep 2026529 PMAQI
10th Sep 20265210 PMAQI
10th Sep 20264611 PMAQI
11th Sep 20264712 AMAQI
11th Sep 2026511 AMAQI
11th Sep 2026482 AMAQI
11th Sep 2026483 AMAQI
11th Sep 2026474 AMAQI

21°C17/27°C

11th Sep 2026525 AMAQI
11th Sep 2026566 AMAQI
11th Sep 2026627 AMAQI
11th Sep 2026678 AMAQI
11th Sep 2026699 AMAQI
11th Sep 20267010 AMAQI
11th Sep 20265611 AMAQI
11th Sep 20263312 PMAQI
11th Sep 2026321 PMAQI
11th Sep 2026282 PMAQI
11th Sep 2026263 PMAQI
11th Sep 2026224 PMAQI
11th Sep 2026235 PMAQI
11th Sep 2026256 PMAQI
11th Sep 2026257 PMAQI
11th Sep 2026248 PMAQI
11th Sep 2026249 PMAQI
11th Sep 20262310 PMAQI
11th Sep 20262211 PMAQI
12th Sep 20262212 AMAQI
12th Sep 2026221 AMAQI
12th Sep 2026252 AMAQI
12th Sep 2026233 AMAQI
12th Sep 2026244 AMAQI

22°C19/26°C

12th Sep 2026265 AMAQI
12th Sep 2026266 AMAQI
12th Sep 2026287 AMAQI
12th Sep 2026268 AMAQI
12th Sep 2026269 AMAQI
12th Sep 20262410 AMAQI
12th Sep 20262311 AMAQI
12th Sep 20262312 PMAQI
12th Sep 2026251 PMAQI
12th Sep 2026242 PMAQI
12th Sep 2026243 PMAQI
12th Sep 2026264 PMAQI
12th Sep 2026265 PMAQI
12th Sep 2026306 PMAQI
12th Sep 2026327 PMAQI
12th Sep 2026438 PMAQI
12th Sep 2026489 PMAQI
12th Sep 20265110 PMAQI
12th Sep 20264511 PMAQI
13th Sep 20263912 AMAQI
13th Sep 2026441 AMAQI
13th Sep 2026402 AMAQI
13th Sep 2026393 AMAQI

24°C20/27°C

13th Sep 2026405 AMAQI
13th Sep 2026446 AMAQI
13th Sep 2026457 AMAQI
13th Sep 2026448 AMAQI
13th Sep 2026439 AMAQI
13th Sep 20265410 AMAQI
13th Sep 20265711 AMAQI
13th Sep 20265412 PMAQI
13th Sep 2026451 PMAQI
13th Sep 2026472 PMAQI
13th Sep 2026443 PMAQI
13th Sep 2026394 PMAQI
13th Sep 2026485 PMAQI
13th Sep 2026486 PMAQI
13th Sep 2026597 PMAQI
13th Sep 2026548 PMAQI
13th Sep 2026639 PMAQI
13th Sep 20265010 PMAQI
13th Sep 20264711 PMAQI
14th Sep 20265112 AMAQI
14th Sep 2026451 AMAQI
14th Sep 2026492 AMAQI
14th Sep 2026463 AMAQI
14th Sep 2026654 AMAQI

24°C21/28°C

14th Sep 2026595 AMAQI
14th Sep 2026556 AMAQI
14th Sep 2026547 AMAQI
14th Sep 2026638 AMAQI
14th Sep 2026619 AMAQI
14th Sep 20265510 AMAQI
14th Sep 20266111 AMAQI
14th Sep 20265612 PMAQI
14th Sep 2026611 PMAQI
14th Sep 2026682 PMAQI
14th Sep 2026593 PMAQI
14th Sep 2026304 PMAQI
14th Sep 2026345 PMAQI
14th Sep 2026396 PMAQI
14th Sep 2026437 PMAQI
14th Sep 2026498 PMAQI
14th Sep 2026679 PMAQI
14th Sep 20268410 PMAQI
14th Sep 20269811 PMAQI
15th Sep 20269012 AMAQI
15th Sep 2026921 AMAQI
15th Sep 2026822 AMAQI
15th Sep 2026683 AMAQI
15th Sep 2026554 AMAQI

23°C21/26°C

15th Sep 2026465 AMAQI
15th Sep 2026376 AMAQI
15th Sep 2026327 AMAQI
15th Sep 2026308 AMAQI
15th Sep 2026279 AMAQI
15th Sep 20262410 AMAQI
15th Sep 20262511 AMAQI
15th Sep 20262512 PMAQI
15th Sep 2026291 PMAQI
15th Sep 2026252 PMAQI
15th Sep 2026283 PMAQI
15th Sep 2026314 PMAQI
15th Sep 2026325 PMAQI
15th Sep 2026436 PMAQI
15th Sep 2026527 PMAQI
15th Sep 2026618 PMAQI
15th Sep 2026699 PMAQI
15th Sep 20266810 PMAQI
15th Sep 20267111 PMAQI
16th Sep 20267012 AMAQI
16th Sep 2026721 AMAQI
16th Sep 2026732 AMAQI
16th Sep 2026723 AMAQI
16th Sep 2026754 AMAQI

23°C19/27°C

16th Sep 2026765 AMAQI
16th Sep 2026766 AMAQI
16th Sep 2026797 AMAQI
16th Sep 2026818 AMAQI
16th Sep 2026779 AMAQI
16th Sep 20266010 AMAQI
16th Sep 20265811 AMAQI
16th Sep 20265612 PMAQI
16th Sep 2026571 PMAQI
16th Sep 2026542 PMAQI
16th Sep 2026523 PMAQI
16th Sep 2026524 PMAQI
16th Sep 2026535 PMAQI
16th Sep 2026506 PMAQI
16th Sep 2026527 PMAQI
16th Sep 2026528 PMAQI
16th Sep 2026589 PMAQI
16th Sep 20265910 PMAQI
16th Sep 20266111 PMAQI
17th Sep 20266212 AMAQI
17th Sep 2026651 AMAQI
17th Sep 2026672 AMAQI
17th Sep 2026613 AMAQI
17th Sep 2026594 AMAQI

22°C19/27°C

17th Sep 2026465 AMAQI
17th Sep 2026306 AMAQI
17th Sep 2026267 AMAQI
17th Sep 2026248 AMAQI
17th Sep 2026249 AMAQI
17th Sep 20262710 AMAQI
17th Sep 20263211 AMAQI
17th Sep 20263512 PMAQI
17th Sep 2026341 PMAQI
17th Sep 2026362 PMAQI
17th Sep 2026333 PMAQI
17th Sep 2026284 PMAQI
17th Sep 2026355 PMAQI
17th Sep 2026446 PMAQI
17th Sep 2026517 PMAQI
17th Sep 2026548 PMAQI
17th Sep 2026549 PMAQI
17th Sep 20265410 PMAQI
17th Sep 20265811 PMAQI
18th Sep 20266412 AMAQI
18th Sep 2026511 AMAQI
18th Sep 2026502 AMAQI
18th Sep 2026503 AMAQI
18th Sep 2026404 AMAQI

22°C21/24°C

18th Sep 2026305 AMAQI
18th Sep 2026326 AMAQI
18th Sep 2026347 AMAQI
18th Sep 2026408 AMAQI
18th Sep 2026409 AMAQI
18th Sep 20263610 AMAQI
18th Sep 20263511 AMAQI
18th Sep 20263512 PMAQI
18th Sep 2026421 PMAQI
18th Sep 2026462 PMAQI
18th Sep 2026503 PMAQI
18th Sep 2026504 PMAQI
18th Sep 2026515 PMAQI
18th Sep 2026566 PMAQI
18th Sep 2026557 PMAQI
18th Sep 2026618 PMAQI
18th Sep 2026649 PMAQI
18th Sep 20266610 PMAQI
18th Sep 20266511 PMAQI
19th Sep 20266512 AMAQI
19th Sep 2026701 AMAQI
19th Sep 2026732 AMAQI
19th Sep 2026663 AMAQI
19th Sep 2026624 AMAQI

24°C22/28°C

19th Sep 2026665 AMAQI
19th Sep 2026726 AMAQI
19th Sep 2026717 AMAQI
19th Sep 2026698 AMAQI
19th Sep 2026689 AMAQI
19th Sep 20266510 AMAQI
19th Sep 20265811 AMAQI
19th Sep 20265612 PMAQI
19th Sep 2026631 PMAQI
19th Sep 2026612 PMAQI
19th Sep 2026603 PMAQI
19th Sep 2026624 PMAQI
19th Sep 2026645 PMAQI
19th Sep 2026636 PMAQI
19th Sep 2026397 PMAQI
19th Sep 2026238 PMAQI
19th Sep 2026229 PMAQI
19th Sep 20263510 PMAQI
19th Sep 20263811 PMAQI
20th Sep 20264012 AMAQI
20th Sep 2026391 AMAQI
20th Sep 2026372 AMAQI
20th Sep 2026463 AMAQI
20th Sep 2026464 AMAQI

25°C22/28°C

20th Sep 2026485 AMAQI
20th Sep 2026526 AMAQI
20th Sep 2026517 AMAQI
20th Sep 2026438 AMAQI
20th Sep 2026449 AMAQI
20th Sep 20263010 AMAQI
20th Sep 20262411 AMAQI
20th Sep 20262412 PMAQI
20th Sep 2026241 PMAQI
20th Sep 2026242 PMAQI
20th Sep 2026313 PMAQI
20th Sep 2026364 PMAQI
20th Sep 2026315 PMAQI
20th Sep 2026326 PMAQI
20th Sep 2026327 PMAQI
20th Sep 2026348 PMAQI
20th Sep 2026389 PMAQI
20th Sep 20264210 PMAQI
20th Sep 20264511 PMAQI
21st Sep 20264812 AMAQI
21st Sep 2026541 AMAQI
21st Sep 2026562 AMAQI
21st Sep 2026593 AMAQI
21st Sep 2026624 AMAQI

23°C21/26°C

21st Sep 2026665 AMAQI
21st Sep 2026676 AMAQI
21st Sep 2026697 AMAQI
21st Sep 2026728 AMAQI
21st Sep 2026769 AMAQI
21st Sep 20266810 AMAQI
21st Sep 20266211 AMAQI
21st Sep 20267212 PMAQI
21st Sep 2026781 PMAQI
21st Sep 2026722 PMAQI
21st Sep 2026713 PMAQI
21st Sep 2026824 PMAQI
21st Sep 2026885 PMAQI
21st Sep 2026816 PMAQI
21st Sep 2026807 PMAQI
21st Sep 2026818 PMAQI
21st Sep 2026829 PMAQI
21st Sep 20268110 PMAQI
21st Sep 20268111 PMAQI
22nd Sep 20268312 AMAQI
22nd Sep 2026681 AMAQI
22nd Sep 2026602 AMAQI
22nd Sep 2026603 AMAQI
22nd Sep 2026584 AMAQI

23°C20/28°C

22nd Sep 2026655 AMAQI
22nd Sep 2026726 AMAQI
22nd Sep 2026757 AMAQI
22nd Sep 2026938 AMAQI
22nd Sep 2026909 AMAQI
22nd Sep 20267210 AMAQI
22nd Sep 20266611 AMAQI
22nd Sep 20266312 PMAQI
22nd Sep 2026651 PMAQI
22nd Sep 2026702 PMAQI
22nd Sep 2026723 PMAQI
22nd Sep 2026724 PMAQI
22nd Sep 2026655 PMAQI
22nd Sep 2026686 PMAQI
22nd Sep 2026707 PMAQI
22nd Sep 2026788 PMAQI
22nd Sep 2026739 PMAQI
22nd Sep 20267210 PMAQI
22nd Sep 20266911 PMAQI
23rd Sep 20266712 AMAQI
23rd Sep 2026701 AMAQI
23rd Sep 2026672 AMAQI
23rd Sep 2026693 AMAQI
23rd Sep 2026744 AMAQI

23°C21/27°C

23rd Sep 2026825 AMAQI
23rd Sep 2026736 AMAQI
23rd Sep 2026747 AMAQI
23rd Sep 2026668 AMAQI
23rd Sep 2026579 AMAQI
23rd Sep 20264710 AMAQI
23rd Sep 20263811 AMAQI
23rd Sep 20263312 PMAQI
23rd Sep 2026311 PMAQI
23rd Sep 2026322 PMAQI
23rd Sep 2026313 PMAQI
23rd Sep 2026364 PMAQI
23rd Sep 2026425 PMAQI
23rd Sep 2026386 PMAQI
23rd Sep 2026407 PMAQI
23rd Sep 2026428 PMAQI
23rd Sep 2026379 PMAQI
23rd Sep 20263110 PMAQI
23rd Sep 20263111 PMAQI
24th Sep 20263112 AMAQI
24th Sep 2026301 AMAQI
24th Sep 2026272 AMAQI
24th Sep 2026263 AMAQI
24th Sep 2026244 AMAQI

24°C22/27°C

24th Sep 2026245 AMAQI
24th Sep 2026246 AMAQI
24th Sep 2026307 AMAQI
24th Sep 2026258 AMAQI
24th Sep 2026289 AMAQI
24th Sep 20262810 AMAQI
24th Sep 20263011 AMAQI
24th Sep 20263012 PMAQI
24th Sep 2026301 PMAQI
24th Sep 2026312 PMAQI
24th Sep 2026323 PMAQI
24th Sep 2026324 PMAQI
24th Sep 2026375 PMAQI
24th Sep 2026466 PMAQI
24th Sep 2026507 PMAQI
24th Sep 2026548 PMAQI
24th Sep 2026549 PMAQI
24th Sep 20266010 PMAQI
24th Sep 20265411 PMAQI
25th Sep 20265112 AMAQI
25th Sep 2026521 AMAQI
25th Sep 2026442 AMAQI
25th Sep 2026343 AMAQI
25th Sep 2026284 AMAQI

24°C22/28°C

25th Sep 2026255 AMAQI
25th Sep 2026266 AMAQI
25th Sep 2026317 AMAQI
25th Sep 2026368 AMAQI
25th Sep 2026379 AMAQI
25th Sep 20264410 AMAQI
25th Sep 20265311 AMAQI
25th Sep 20266612 PMAQI
25th Sep 2026601 PMAQI
25th Sep 2026732 PMAQI
25th Sep 2026783 PMAQI
25th Sep 2026744 PMAQI
25th Sep 2026755 PMAQI
25th Sep 2026766 PMAQI
25th Sep 2026807 PMAQI
25th Sep 2026888 PMAQI
25th Sep 20261029 PMAQI
25th Sep 20269210 PMAQI
25th Sep 20268811 PMAQI
26th Sep 20269212 AMAQI
26th Sep 2026981 AMAQI
26th Sep 20261002 AMAQI
26th Sep 2026993 AMAQI
26th Sep 20261064 AMAQI

26°C22/31°C

26th Sep 20261165 AMAQI
26th Sep 20261186 AMAQI
26th Sep 2026727 AMAQI
26th Sep 2026628 AMAQI
26th Sep 2026789 AMAQI
26th Sep 20266610 AMAQI
26th Sep 20265411 AMAQI
26th Sep 20263812 PMAQI
26th Sep 2026361 PMAQI
26th Sep 2026382 PMAQI
26th Sep 2026373 PMAQI
26th Sep 2026334 PMAQI
26th Sep 2026305 PMAQI
26th Sep 2026256 PMAQI
26th Sep 2026307 PMAQI
26th Sep 2026298 PMAQI
26th Sep 2026259 PMAQI
26th Sep 20262310 PMAQI
26th Sep 20262211 PMAQI
27th Sep 20262812 AMAQI
27th Sep 2026291 AMAQI
27th Sep 2026442 AMAQI
27th Sep 2026363 AMAQI
27th Sep 2026274 AMAQI

23°C22/26°C

27th Sep 2026265 AMAQI
5 AM
27th Sep 2026286 AMAQI
27th Sep 2026357 AMAQI
27th Sep 2026358 AMAQI
27th Sep 2026469 AMAQI
27th Sep 20264810 AMAQI
27th Sep 20264211 AMAQI
11 AM
27th Sep 20263412 PMAQI
27th Sep 2026281 PMAQI
27th Sep 2026272 PMAQI
27th Sep 2026283 PMAQI
27th Sep 2026294 PMAQI
27th Sep 2026285 PMAQI
27th Sep 2026266 PMAQI
6 PM
27th Sep 2026347 PMAQI
27th Sep 2026488 PMAQI
27th Sep 2026589 PMAQI
27th Sep 20266410 PMAQI
27th Sep 20266511 PMAQI
11 PM
4 AM

24°C23/27°C

Day time
Avg. Highest Time
5 AM - 9 AM

49AQI

5 hours / Day
150 hours / Month
Avg. Lowest Time
12 PM

41AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 9 AM (Avg. 49), while the lowest AQI was between 12 PM to 12 PM (Avg. 41).
Night time
Avg. Highest Time
9 PM - 11 PM

51AQI

3 hours / Day
90 hours / Month
Avg. Lowest Time
7 PM

44AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 9 PM to 11 PM (Avg. 51), while the lowest AQI was between 7 PM to 7 PM (Avg. 44).

2026 Days Vs Air Quality

Changshu, Jiangsu, China

2026

41%

110

46%

124

9%

25

4%

11

Total number of days with different AQI categories in last 270 days in 2026 (95 days remaining)

Good
110 Days
Moderate
124 Days
Poor
25 Days
Unhealthy
11 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 41%

Health Risk Level:

Significant

In 2026, 41% of 270 days were within WHO’s safe air quality limits, and 59% exceeded them. The risk of health issues is Significant, especially for those with existing respiratory or heart conditions.

Annual Air Quality Insights

Changshu, Jiangsu, 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
36AQI (US)
2nd January 2026
64AQI (US)
3rd January 2026
102AQI (US)
4th January 2026
149AQI (US)
5th January 2026
161AQI (US)
6th January 2026
158AQI (US)
7th January 2026
122AQI (US)
8th January 2026
146AQI (US)
9th January 2026
138AQI (US)
10th January 2026
113AQI (US)
11th January 2026
62AQI (US)
12th January 2026
81AQI (US)
13th January 2026
133AQI (US)
14th January 2026
153AQI (US)
15th January 2026
157AQI (US)
16th January 2026
182AQI (US)
17th January 2026
154AQI (US)
18th January 2026
72AQI (US)
19th January 2026
43AQI (US)
20th January 2026
54AQI (US)
21st January 2026
76AQI (US)
22nd January 2026
81AQI (US)
23rd January 2026
134AQI (US)
24th January 2026
151AQI (US)
25th January 2026
120AQI (US)
26th January 2026
44AQI (US)
27th January 2026
82AQI (US)
28th January 2026
79AQI (US)
29th January 2026
49AQI (US)
30th January 2026
50AQI (US)
31st January 2026
35AQI (US)
1st February 2026
111AQI (US)
2nd February 2026
147AQI (US)
3rd February 2026
114AQI (US)
4th February 2026
97AQI (US)
5th February 2026
156AQI (US)
6th February 2026
87AQI (US)
7th February 2026
59AQI (US)
8th February 2026
68AQI (US)
9th February 2026
67AQI (US)
10th February 2026
88AQI (US)
11th February 2026
140AQI (US)
12th February 2026
155AQI (US)
13th February 2026
152AQI (US)
14th February 2026
140AQI (US)
15th February 2026
154AQI (US)
16th February 2026
57AQI (US)
17th February 2026
88AQI (US)
18th February 2026
147AQI (US)
19th February 2026
142AQI (US)
20th February 2026
98AQI (US)
21st February 2026
90AQI (US)
22nd February 2026
92AQI (US)
23rd February 2026
58AQI (US)
24th February 2026
38AQI (US)
25th February 2026
61AQI (US)
26th February 2026
48AQI (US)
27th February 2026
28AQI (US)
28th February 2026
62AQI (US)
1st March 2026
30AQI (US)
2nd March 2026
18AQI (US)
3rd March 2026
77AQI (US)
4th March 2026
29AQI (US)
5th March 2026
66AQI (US)
6th March 2026
92AQI (US)
7th March 2026
70AQI (US)
8th March 2026
38AQI (US)
9th March 2026
60AQI (US)
10th March 2026
40AQI (US)
11th March 2026
64AQI (US)
12th March 2026
68AQI (US)
13th March 2026
113AQI (US)
14th March 2026
78AQI (US)
15th March 2026
56AQI (US)
16th March 2026
99AQI (US)
17th March 2026
109AQI (US)
18th March 2026
83AQI (US)
19th March 2026
93AQI (US)
20th March 2026
88AQI (US)
21st March 2026
52AQI (US)
22nd March 2026
84AQI (US)
23rd March 2026
85AQI (US)
24th March 2026
90AQI (US)
25th March 2026
136AQI (US)
26th March 2026
78AQI (US)
27th March 2026
73AQI (US)
28th March 2026
69AQI (US)
29th March 2026
99AQI (US)
30th March 2026
74AQI (US)
31st March 2026
89AQI (US)
1st April 2026
121AQI (US)
2nd April 2026
136AQI (US)
3rd April 2026
61AQI (US)
4th April 2026
97AQI (US)
5th April 2026
103AQI (US)
6th April 2026
120AQI (US)
7th April 2026
44AQI (US)
8th April 2026
34AQI (US)
9th April 2026
39AQI (US)
10th April 2026
93AQI (US)
11th April 2026
98AQI (US)
12th April 2026
29AQI (US)
13th April 2026
40AQI (US)
14th April 2026
67AQI (US)
15th April 2026
63AQI (US)
16th April 2026
55AQI (US)
17th April 2026
86AQI (US)
18th April 2026
49AQI (US)
19th April 2026
52AQI (US)
20th April 2026
60AQI (US)
21st April 2026
58AQI (US)
22nd April 2026
33AQI (US)
23rd April 2026
24AQI (US)
24th April 2026
65AQI (US)
25th April 2026
59AQI (US)
26th April 2026
66AQI (US)
27th April 2026
99AQI (US)
28th April 2026
79AQI (US)
29th April 2026
33AQI (US)
30th April 2026
78AQI (US)
1st May 2026
77AQI (US)
2nd May 2026
67AQI (US)
3rd May 2026
77AQI (US)
4th May 2026
51AQI (US)
5th May 2026
68AQI (US)
6th May 2026
44AQI (US)
7th May 2026
66AQI (US)
8th May 2026
28AQI (US)
9th May 2026
36AQI (US)
10th May 2026
41AQI (US)
11th May 2026
64AQI (US)
12th May 2026
70AQI (US)
13th May 2026
68AQI (US)
14th May 2026
30AQI (US)
15th May 2026
31AQI (US)
16th May 2026
75AQI (US)
17th May 2026
62AQI (US)
18th May 2026
55AQI (US)
19th May 2026
52AQI (US)
20th May 2026
62AQI (US)
21st May 2026
68AQI (US)
22nd May 2026
78AQI (US)
23rd May 2026
72AQI (US)
24th May 2026
70AQI (US)
25th May 2026
64AQI (US)
26th May 2026
50AQI (US)
27th May 2026
63AQI (US)
28th May 2026
80AQI (US)
29th May 2026
60AQI (US)
30th May 2026
64AQI (US)
31st May 2026
42AQI (US)
1st June 2026
64AQI (US)
2nd June 2026
90AQI (US)
3rd June 2026
108AQI (US)
4th June 2026
104AQI (US)
5th June 2026
47AQI (US)
6th June 2026
19AQI (US)
7th June 2026
42AQI (US)
8th June 2026
47AQI (US)
9th June 2026
47AQI (US)
10th June 2026
48AQI (US)
11th June 2026
68AQI (US)
12th June 2026
82AQI (US)
13th June 2026
71AQI (US)
14th June 2026
26AQI (US)
15th June 2026
19AQI (US)
16th June 2026
44AQI (US)
17th June 2026
42AQI (US)
18th June 2026
87AQI (US)
19th June 2026
47AQI (US)
20th June 2026
36AQI (US)
21st June 2026
68AQI (US)
22nd June 2026
19AQI (US)
23rd June 2026
8AQI (US)
24th June 2026
20AQI (US)
25th June 2026
32AQI (US)
26th June 2026
59AQI (US)
27th June 2026
70AQI (US)
28th June 2026
78AQI (US)
29th June 2026
46AQI (US)
30th June 2026
32AQI (US)
1st July 2026
51AQI (US)
2nd July 2026
54AQI (US)
3rd July 2026
49AQI (US)
4th July 2026
32AQI (US)
5th July 2026
14AQI (US)
6th July 2026
30AQI (US)
7th July 2026
54AQI (US)
8th July 2026
22AQI (US)
9th July 2026
39AQI (US)
10th July 2026
26AQI (US)
11th July 2026
38AQI (US)
12th July 2026
30AQI (US)
13th July 2026
32AQI (US)
14th July 2026
44AQI (US)
15th July 2026
47AQI (US)
16th July 2026
36AQI (US)
17th July 2026
50AQI (US)
18th July 2026
70AQI (US)
19th July 2026
42AQI (US)
20th July 2026
43AQI (US)
21st July 2026
45AQI (US)
22nd July 2026
46AQI (US)
23rd July 2026
61AQI (US)
24th July 2026
80AQI (US)
25th July 2026
36AQI (US)
26th July 2026
36AQI (US)
27th July 2026
38AQI (US)
28th July 2026
28AQI (US)
29th July 2026
46AQI (US)
30th July 2026
55AQI (US)
31st July 2026
71AQI (US)
1st August 2026
78AQI (US)
2nd August 2026
64AQI (US)
3rd August 2026
75AQI (US)
4th August 2026
48AQI (US)
5th August 2026
64AQI (US)
6th August 2026
44AQI (US)
7th August 2026
44AQI (US)
8th August 2026
51AQI (US)
9th August 2026
27AQI (US)
10th August 2026
30AQI (US)
11th August 2026
43AQI (US)
12th August 2026
47AQI (US)
13th August 2026
42AQI (US)
14th August 2026
32AQI (US)
15th August 2026
33AQI (US)
16th August 2026
40AQI (US)
17th August 2026
55AQI (US)
18th August 2026
47AQI (US)
19th August 2026
28AQI (US)
20th August 2026
26AQI (US)
21st August 2026
65AQI (US)
22nd August 2026
51AQI (US)
23rd August 2026
51AQI (US)
24th August 2026
42AQI (US)
25th August 2026
46AQI (US)
26th August 2026
44AQI (US)
27th August 2026
42AQI (US)
28th August 2026
31AQI (US)
29th August 2026
48AQI (US)
30th August 2026
54AQI (US)
31st August 2026
52AQI (US)
1st September 2026
27AQI (US)
2nd September 2026
26AQI (US)
3rd September 2026
29AQI (US)
4th September 2026
51AQI (US)
5th September 2026
38AQI (US)
6th September 2026
35AQI (US)
7th September 2026
46AQI (US)
8th September 2026
65AQI (US)
9th September 2026
44AQI (US)
10th September 2026
36AQI (US)
11th September 2026
41AQI (US)
12th September 2026
29AQI (US)
13th September 2026
47AQI (US)
14th September 2026
56AQI (US)
15th September 2026
48AQI (US)
16th September 2026
64AQI (US)
17th September 2026
44AQI (US)
18th September 2026
48AQI (US)
19th September 2026
58AQI (US)
20th September 2026
37AQI (US)
21st September 2026
71AQI (US)
22nd September 2026
71AQI (US)
23rd September 2026
50AQI (US)
24th September 2026
35AQI (US)
25th September 2026
59AQI (US)
26th September 2026
59AQI (US)
27th September 2026
37AQI (US)
28th September 2026
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

103AQI (US)

98AQI (US)

74AQI (US)

68AQI (US)

59AQI (US)

52AQI (US)

43AQI (US)

47AQI (US)

46AQI (US)

No. of days

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

202666AQI (US)

6
9
9
7
3
14
7
4
5
23
3
9
17
4
8
23
18
10
2
23
8
20
11
18
9
110
124
25
11

Highest AQI (US) recorded in

January

103AQI (US)

Lowest AQI (US) recorded in

July

43AQI (US)

202580AQI (US)

11
17
3
16
10
2
22
9
19
10
1
30
1
7
23
14
17
3
28
6
24
4
25
2
2
14
10
4
1
14
13
3
37
243
72
13

Highest AQI (US) recorded in

January

112AQI (US)

Lowest AQI (US) recorded in

July

53AQI (US)

202484AQI (US)

18
7
10
11
3
9
7
30
9
22
3
28
14
15
12
16
3
8
18
4
9
21
1
49
147
28
54

Highest AQI (US) recorded in

January

156AQI (US)

Lowest AQI (US) recorded in

September

51AQI (US)

2023156AQI (US)

3
31
34

Highest AQI (US) recorded in

November

156AQI (US)

Lowest AQI (US) recorded in

December

156AQI (US)

202183AQI (US)

9
14
8
18
9
1
14
15
1
1
24
6
3
21
5
2
4
26
13
17
7
11
3
9
20
1
11
18
1
1
4
16
10
6
10
4
51
200
74
17
1

Highest AQI (US) recorded in

January

118AQI (US)

Lowest AQI (US) recorded in

July

56AQI (US)

202082AQI (US)

4
8
1
1
8
11
1
1
9
8
5
23
2
7
21
3
4
26
1
3
21
6
4
25
2
4
19
5
2
12
11
7
1
33
172
50
10
1

Highest AQI (US) recorded in

December

126AQI (US)

Lowest AQI (US) recorded in

August

66AQI (US)

Most & Least Polluted Years Over the Last 6 Years

Most Polluted Year Recorded
2023(Avg.)
156AQI (US)
Least Polluted Year Recorded
2026(Avg.)
66AQI (US)

Changshu's annual 2026 AQI (US) (66) shows an average percentage change of -27.3% (improved AQI (US)) compared to previous years: 2020 (82), 2021 (83), 2023 (156), 2024 (84), 2025 (80).