Chacngzhang, Nantong, 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+
August Air Quality Analysis
Chacngzhang, Nantong, Jiangsu, China
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
31st Aug 2022
129AQILowest AQI recorded on
28th Aug 2023
20AQISame Day Analysis (7th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 55 of Moderate air quality, showing improvement over 2024 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 7th Aug - 8th Aug 2025
Chacngzhang, Nantong, Jiangsu, China
AQI
Day
Night
.
5 AM7th Aug 2025
7 PM
4 AM8th Aug 2025
Day time
Avg. Highest Time
10AM7th Aug
67AQI
Avg. Lowest Time
6PM7th Aug
30AQI
Night time
Avg. Highest Time
1AM8th Aug
58AQI
Avg. Lowest Time
7PM7th Aug
33AQI
In the last 24 hours,
Chacngzhang's AQI reached its highest point of 67 at 10 AM during the Day, while the lowest point, 30, was recorded at 6 PM during the Day between 7th Aug and 8th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Chacngzhang, Nantong, Jiangsu, 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 2025565 AMAQI
9th Jul 2025566 AMAQI
9th Jul 2025567 AMAQI
9th Jul 2025328 AMAQI
9th Jul 2025259 AMAQI
9th Jul 20253310 AMAQI
9th Jul 20253311 AMAQI
9th Jul 20253612 PMAQI
9th Jul 2025311 PMAQI
9th Jul 2025372 PMAQI
9th Jul 2025283 PMAQI
9th Jul 2025274 PMAQI
9th Jul 2025285 PMAQI
9th Jul 2025366 PMAQI
9th Jul 2025427 PMAQI
9th Jul 2025528 PMAQI
9th Jul 2025549 PMAQI
9th Jul 20255810 PMAQI
9th Jul 20256011 PMAQI
10th Jul 20256012 AMAQI
10th Jul 2025601 AMAQI
10th Jul 2025572 AMAQI
10th Jul 2025563 AMAQI
10th Jul 2025544 AMAQI
28°C26/32°C
10th Jul 2025545 AMAQI
10th Jul 2025546 AMAQI
10th Jul 2025547 AMAQI
10th Jul 2025768 AMAQI
10th Jul 2025909 AMAQI
10th Jul 202511110 AMAQI
10th Jul 20259911 AMAQI
10th Jul 20259212 PMAQI
10th Jul 2025981 PMAQI
10th Jul 2025882 PMAQI
10th Jul 2025913 PMAQI
10th Jul 2025744 PMAQI
10th Jul 2025745 PMAQI
10th Jul 2025736 PMAQI
10th Jul 2025857 PMAQI
10th Jul 2025768 PMAQI
10th Jul 2025739 PMAQI
10th Jul 20257110 PMAQI
10th Jul 20256911 PMAQI
11th Jul 20256512 AMAQI
11th Jul 2025571 AMAQI
11th Jul 2025562 AMAQI
11th Jul 2025573 AMAQI
11th Jul 2025644 AMAQI
28°C26/32°C
11th Jul 2025635 AMAQI
11th Jul 2025636 AMAQI
11th Jul 2025637 AMAQI
11th Jul 2025668 AMAQI
11th Jul 2025689 AMAQI
11th Jul 20257210 AMAQI
11th Jul 20255811 AMAQI
11th Jul 20256412 PMAQI
11th Jul 2025601 PMAQI
11th Jul 2025502 PMAQI
11th Jul 2025433 PMAQI
11th Jul 2025444 PMAQI
11th Jul 2025595 PMAQI
11th Jul 2025556 PMAQI
11th Jul 2025607 PMAQI
11th Jul 2025608 PMAQI
11th Jul 2025589 PMAQI
11th Jul 20255910 PMAQI
11th Jul 20256011 PMAQI
12th Jul 20256112 AMAQI
12th Jul 2025611 AMAQI
12th Jul 2025612 AMAQI
12th Jul 2025613 AMAQI
12th Jul 2025614 AMAQI
27°C25/30°C
12th Jul 2025615 AMAQI
12th Jul 2025616 AMAQI
12th Jul 2025617 AMAQI
12th Jul 2025548 AMAQI
12th Jul 2025519 AMAQI
12th Jul 20253910 AMAQI
12th Jul 20253711 AMAQI
12th Jul 20253112 PMAQI
12th Jul 2025331 PMAQI
12th Jul 2025362 PMAQI
12th Jul 2025363 PMAQI
12th Jul 2025354 PMAQI
12th Jul 2025345 PMAQI
12th Jul 2025386 PMAQI
12th Jul 2025547 PMAQI
12th Jul 2025618 PMAQI
12th Jul 2025589 PMAQI
12th Jul 20256310 PMAQI
12th Jul 20255811 PMAQI
13th Jul 20255712 AMAQI
13th Jul 2025611 AMAQI
13th Jul 2025612 AMAQI
13th Jul 2025603 AMAQI
13th Jul 2025574 AMAQI
27°C25/30°C
13th Jul 2025585 AMAQI
13th Jul 2025576 AMAQI
13th Jul 2025587 AMAQI
13th Jul 2025578 AMAQI
13th Jul 2025579 AMAQI
13th Jul 20256310 AMAQI
13th Jul 20253811 AMAQI
13th Jul 20254812 PMAQI
13th Jul 2025441 PMAQI
13th Jul 2025452 PMAQI
13th Jul 2025533 PMAQI
13th Jul 2025564 PMAQI
13th Jul 2025585 PMAQI
13th Jul 2025636 PMAQI
13th Jul 2025667 PMAQI
13th Jul 2025658 PMAQI
13th Jul 2025659 PMAQI
13th Jul 20256610 PMAQI
13th Jul 20257211 PMAQI
14th Jul 20257212 AMAQI
14th Jul 2025581 AMAQI
14th Jul 2025582 AMAQI
14th Jul 2025583 AMAQI
14th Jul 2025574 AMAQI
28°C25/33°C
14th Jul 2025585 AMAQI
14th Jul 2025576 AMAQI
14th Jul 2025577 AMAQI
14th Jul 2025598 AMAQI
14th Jul 2025709 AMAQI
14th Jul 20257810 AMAQI
14th Jul 20258411 AMAQI
14th Jul 20258212 PMAQI
14th Jul 2025811 PMAQI
14th Jul 2025722 PMAQI
14th Jul 2025603 PMAQI
14th Jul 2025534 PMAQI
14th Jul 2025415 PMAQI
14th Jul 2025466 PMAQI
14th Jul 2025517 PMAQI
14th Jul 2025578 PMAQI
14th Jul 2025579 PMAQI
14th Jul 20255810 PMAQI
14th Jul 20255811 PMAQI
15th Jul 20255912 AMAQI
15th Jul 2025601 AMAQI
15th Jul 2025592 AMAQI
15th Jul 2025603 AMAQI
15th Jul 2025634 AMAQI
28°C25/33°C
15th Jul 2025635 AMAQI
15th Jul 2025626 AMAQI
15th Jul 2025637 AMAQI
15th Jul 2025758 AMAQI
15th Jul 2025809 AMAQI
15th Jul 20258510 AMAQI
15th Jul 20258011 AMAQI
15th Jul 20257012 PMAQI
15th Jul 2025761 PMAQI
15th Jul 2025802 PMAQI
15th Jul 2025883 PMAQI
15th Jul 2025944 PMAQI
15th Jul 20251055 PMAQI
15th Jul 20251046 PMAQI
15th Jul 2025857 PMAQI
15th Jul 2025748 PMAQI
15th Jul 2025739 PMAQI
15th Jul 20257210 PMAQI
15th Jul 20257211 PMAQI
16th Jul 20257012 AMAQI
16th Jul 2025601 AMAQI
16th Jul 2025612 AMAQI
16th Jul 2025623 AMAQI
16th Jul 2025644 AMAQI
29°C25/34°C
16th Jul 2025645 AMAQI
16th Jul 2025656 AMAQI
16th Jul 2025667 AMAQI
16th Jul 2025908 AMAQI
16th Jul 20251029 AMAQI
16th Jul 202510610 AMAQI
16th Jul 20259611 AMAQI
16th Jul 20259012 PMAQI
16th Jul 2025841 PMAQI
16th Jul 2025762 PMAQI
16th Jul 2025743 PMAQI
16th Jul 2025804 PMAQI
16th Jul 2025785 PMAQI
16th Jul 2025846 PMAQI
16th Jul 2025787 PMAQI
16th Jul 2025708 PMAQI
16th Jul 2025669 PMAQI
16th Jul 20256610 PMAQI
16th Jul 20256911 PMAQI
17th Jul 20256912 AMAQI
17th Jul 2025641 AMAQI
17th Jul 2025632 AMAQI
17th Jul 2025663 AMAQI
17th Jul 2025694 AMAQI
30°C26/35°C
17th Jul 2025695 AMAQI
17th Jul 2025696 AMAQI
17th Jul 2025697 AMAQI
17th Jul 2025418 AMAQI
17th Jul 2025379 AMAQI
17th Jul 20254610 AMAQI
17th Jul 20256311 AMAQI
17th Jul 20257412 PMAQI
17th Jul 20251061 PMAQI
17th Jul 2025872 PMAQI
17th Jul 2025863 PMAQI
17th Jul 2025824 PMAQI
17th Jul 2025745 PMAQI
17th Jul 2025716 PMAQI
17th Jul 2025647 PMAQI
17th Jul 2025608 PMAQI
17th Jul 2025639 PMAQI
17th Jul 20256210 PMAQI
17th Jul 20256311 PMAQI
18th Jul 20256212 AMAQI
18th Jul 2025671 AMAQI
18th Jul 2025662 AMAQI
18th Jul 2025663 AMAQI
18th Jul 2025674 AMAQI
29°C25/34°C
18th Jul 2025675 AMAQI
18th Jul 2025686 AMAQI
18th Jul 2025677 AMAQI
18th Jul 2025608 AMAQI
18th Jul 2025609 AMAQI
18th Jul 20255410 AMAQI
18th Jul 20255611 AMAQI
18th Jul 20255412 PMAQI
18th Jul 2025561 PMAQI
18th Jul 2025562 PMAQI
18th Jul 2025523 PMAQI
18th Jul 2025504 PMAQI
18th Jul 2025475 PMAQI
18th Jul 2025436 PMAQI
18th Jul 2025417 PMAQI
18th Jul 2025548 PMAQI
18th Jul 2025559 PMAQI
18th Jul 20255610 PMAQI
18th Jul 20255611 PMAQI
19th Jul 20255612 AMAQI
19th Jul 2025641 AMAQI
19th Jul 2025662 AMAQI
19th Jul 2025653 AMAQI
19th Jul 2025644 AMAQI
27°C25/31°C
19th Jul 2025645 AMAQI
19th Jul 2025646 AMAQI
19th Jul 2025647 AMAQI
19th Jul 2025408 AMAQI
19th Jul 2025279 AMAQI
19th Jul 20252210 AMAQI
19th Jul 20253411 AMAQI
19th Jul 20254412 PMAQI
19th Jul 2025441 PMAQI
19th Jul 2025412 PMAQI
19th Jul 2025353 PMAQI
19th Jul 2025444 PMAQI
19th Jul 2025425 PMAQI
19th Jul 2025366 PMAQI
19th Jul 2025487 PMAQI
19th Jul 2025568 PMAQI
19th Jul 2025569 PMAQI
19th Jul 20255410 PMAQI
19th Jul 20255311 PMAQI
20th Jul 20255412 AMAQI
20th Jul 2025621 AMAQI
20th Jul 2025622 AMAQI
20th Jul 2025623 AMAQI
20th Jul 2025594 AMAQI
29°C25/33°C
20th Jul 2025585 AMAQI
20th Jul 2025596 AMAQI
20th Jul 2025587 AMAQI
20th Jul 2025428 AMAQI
20th Jul 2025349 AMAQI
20th Jul 20253110 AMAQI
20th Jul 20254211 AMAQI
20th Jul 20253512 PMAQI
20th Jul 2025461 PMAQI
20th Jul 2025372 PMAQI
20th Jul 2025233 PMAQI
20th Jul 2025274 PMAQI
20th Jul 2025295 PMAQI
20th Jul 2025326 PMAQI
20th Jul 2025357 PMAQI
20th Jul 2025508 PMAQI
20th Jul 2025479 PMAQI
20th Jul 20255210 PMAQI
20th Jul 20254911 PMAQI
21st Jul 20255012 AMAQI
21st Jul 2025581 AMAQI
21st Jul 2025592 AMAQI
21st Jul 2025583 AMAQI
21st Jul 2025564 AMAQI
29°C27/32°C
21st Jul 2025565 AMAQI
21st Jul 2025566 AMAQI
21st Jul 2025567 AMAQI
21st Jul 2025298 AMAQI
21st Jul 2025259 AMAQI
21st Jul 20252810 AMAQI
21st Jul 20252411 AMAQI
21st Jul 20252312 PMAQI
21st Jul 2025241 PMAQI
21st Jul 2025422 PMAQI
21st Jul 2025313 PMAQI
21st Jul 2025264 PMAQI
21st Jul 2025275 PMAQI
21st Jul 2025346 PMAQI
21st Jul 2025357 PMAQI
21st Jul 2025468 PMAQI
21st Jul 2025479 PMAQI
21st Jul 20254610 PMAQI
21st Jul 20254511 PMAQI
22nd Jul 20254712 AMAQI
22nd Jul 2025561 AMAQI
22nd Jul 2025562 AMAQI
22nd Jul 2025563 AMAQI
22nd Jul 2025534 AMAQI
29°C27/32°C
22nd Jul 2025545 AMAQI
22nd Jul 2025546 AMAQI
22nd Jul 2025537 AMAQI
22nd Jul 2025378 AMAQI
22nd Jul 2025309 AMAQI
22nd Jul 20253610 AMAQI
22nd Jul 20253511 AMAQI
22nd Jul 20253312 PMAQI
22nd Jul 2025331 PMAQI
22nd Jul 2025232 PMAQI
22nd Jul 2025243 PMAQI
22nd Jul 2025244 PMAQI
22nd Jul 2025345 PMAQI
22nd Jul 2025326 PMAQI
22nd Jul 2025367 PMAQI
22nd Jul 2025438 PMAQI
22nd Jul 2025449 PMAQI
22nd Jul 20254410 PMAQI
22nd Jul 20254111 PMAQI
23rd Jul 20254012 AMAQI
23rd Jul 2025541 AMAQI
23rd Jul 2025532 AMAQI
23rd Jul 2025543 AMAQI
23rd Jul 2025524 AMAQI
29°C27/32°C
23rd Jul 2025525 AMAQI
23rd Jul 2025516 AMAQI
23rd Jul 2025527 AMAQI
23rd Jul 2025298 AMAQI
23rd Jul 2025229 AMAQI
23rd Jul 20252210 AMAQI
23rd Jul 20251811 AMAQI
23rd Jul 20253012 PMAQI
23rd Jul 2025291 PMAQI
23rd Jul 2025222 PMAQI
23rd Jul 2025303 PMAQI
23rd Jul 2025224 PMAQI
23rd Jul 2025225 PMAQI
23rd Jul 2025226 PMAQI
23rd Jul 2025257 PMAQI
23rd Jul 2025378 PMAQI
23rd Jul 2025389 PMAQI
23rd Jul 20253810 PMAQI
23rd Jul 20253711 PMAQI
24th Jul 20253612 AMAQI
24th Jul 2025391 AMAQI
24th Jul 2025462 AMAQI
24th Jul 2025513 AMAQI
24th Jul 2025474 AMAQI
29°C26/32°C
24th Jul 2025485 AMAQI
24th Jul 2025476 AMAQI
24th Jul 2025477 AMAQI
24th Jul 2025388 AMAQI
24th Jul 2025359 AMAQI
24th Jul 20253810 AMAQI
24th Jul 20254011 AMAQI
24th Jul 20253512 PMAQI
24th Jul 2025481 PMAQI
24th Jul 2025392 PMAQI
24th Jul 2025393 PMAQI
24th Jul 2025534 PMAQI
24th Jul 2025525 PMAQI
24th Jul 2025486 PMAQI
24th Jul 2025447 PMAQI
24th Jul 2025528 PMAQI
24th Jul 2025569 PMAQI
24th Jul 20255410 PMAQI
24th Jul 20255411 PMAQI
25th Jul 20255212 AMAQI
25th Jul 2025471 AMAQI
25th Jul 2025462 AMAQI
25th Jul 2025463 AMAQI
25th Jul 2025464 AMAQI
28°C25/32°C
25th Jul 2025455 AMAQI
25th Jul 2025456 AMAQI
25th Jul 2025457 AMAQI
25th Jul 2025498 AMAQI
25th Jul 2025559 AMAQI
25th Jul 20255610 AMAQI
25th Jul 20255311 AMAQI
25th Jul 20254112 PMAQI
25th Jul 2025341 PMAQI
25th Jul 2025322 PMAQI
25th Jul 2025403 PMAQI
25th Jul 2025464 PMAQI
25th Jul 2025525 PMAQI
25th Jul 2025506 PMAQI
25th Jul 2025457 PMAQI
25th Jul 2025428 PMAQI
25th Jul 2025409 PMAQI
25th Jul 20253810 PMAQI
25th Jul 20253611 PMAQI
26th Jul 20254312 AMAQI
26th Jul 2025481 AMAQI
26th Jul 2025472 AMAQI
26th Jul 2025483 AMAQI
26th Jul 2025484 AMAQI
28°C25/32°C
26th Jul 2025485 AMAQI
26th Jul 2025466 AMAQI
26th Jul 2025467 AMAQI
26th Jul 2025288 AMAQI
26th Jul 2025199 AMAQI
26th Jul 20252010 AMAQI
26th Jul 20252111 AMAQI
26th Jul 20252612 PMAQI
26th Jul 2025211 PMAQI
26th Jul 2025282 PMAQI
26th Jul 2025213 PMAQI
26th Jul 2025204 PMAQI
26th Jul 2025255 PMAQI
26th Jul 2025316 PMAQI
26th Jul 2025397 PMAQI
26th Jul 2025418 PMAQI
26th Jul 2025369 PMAQI
26th Jul 20254310 PMAQI
26th Jul 20253911 PMAQI
27th Jul 20253612 AMAQI
27th Jul 2025481 AMAQI
27th Jul 2025502 AMAQI
27th Jul 2025463 AMAQI
27th Jul 2025424 AMAQI
29°C27/31°C
27th Jul 2025425 AMAQI
27th Jul 2025436 AMAQI
27th Jul 2025447 AMAQI
27th Jul 2025388 AMAQI
27th Jul 2025359 AMAQI
27th Jul 20253210 AMAQI
27th Jul 20253011 AMAQI
27th Jul 20253112 PMAQI
27th Jul 2025281 PMAQI
27th Jul 2025282 PMAQI
27th Jul 2025363 PMAQI
27th Jul 2025334 PMAQI
27th Jul 2025245 PMAQI
27th Jul 2025226 PMAQI
27th Jul 2025367 PMAQI
27th Jul 2025418 PMAQI
27th Jul 2025399 PMAQI
27th Jul 20253210 PMAQI
27th Jul 20253311 PMAQI
28th Jul 20253312 AMAQI
28th Jul 2025461 AMAQI
28th Jul 2025462 AMAQI
28th Jul 2025453 AMAQI
28th Jul 2025434 AMAQI
29°C26/32°C
28th Jul 2025435 AMAQI
28th Jul 2025426 AMAQI
28th Jul 2025427 AMAQI
28th Jul 2025298 AMAQI
28th Jul 2025359 AMAQI
28th Jul 20253610 AMAQI
28th Jul 20253911 AMAQI
28th Jul 20253612 PMAQI
28th Jul 2025251 PMAQI
28th Jul 2025212 PMAQI
28th Jul 2025343 PMAQI
28th Jul 2025374 PMAQI
28th Jul 2025405 PMAQI
28th Jul 2025376 PMAQI
28th Jul 2025337 PMAQI
28th Jul 2025398 PMAQI
28th Jul 2025409 PMAQI
28th Jul 20254310 PMAQI
28th Jul 20254411 PMAQI
29th Jul 20254312 AMAQI
29th Jul 2025441 AMAQI
29th Jul 2025442 AMAQI
29th Jul 2025433 AMAQI
29th Jul 2025424 AMAQI
28°C25/31°C
29th Jul 2025425 AMAQI
29th Jul 2025426 AMAQI
29th Jul 2025417 AMAQI
29th Jul 2025268 AMAQI
29th Jul 2025249 AMAQI
29th Jul 20252710 AMAQI
29th Jul 20252311 AMAQI
29th Jul 20252812 PMAQI
29th Jul 2025321 PMAQI
29th Jul 2025312 PMAQI
29th Jul 2025333 PMAQI
29th Jul 2025334 PMAQI
29th Jul 2025345 PMAQI
29th Jul 2025346 PMAQI
29th Jul 2025337 PMAQI
29th Jul 2025388 PMAQI
29th Jul 2025459 PMAQI
29th Jul 20254210 PMAQI
29th Jul 20253511 PMAQI
30th Jul 20253912 AMAQI
30th Jul 2025441 AMAQI
30th Jul 2025442 AMAQI
30th Jul 2025433 AMAQI
30th Jul 2025414 AMAQI
28°C25/32°C
30th Jul 2025405 AMAQI
30th Jul 2025426 AMAQI
30th Jul 2025427 AMAQI
30th Jul 2025248 AMAQI
30th Jul 2025279 AMAQI
30th Jul 20252210 AMAQI
30th Jul 20251811 AMAQI
30th Jul 20252312 PMAQI
30th Jul 2025191 PMAQI
30th Jul 2025182 PMAQI
30th Jul 2025193 PMAQI
30th Jul 2025194 PMAQI
30th Jul 2025195 PMAQI
30th Jul 2025206 PMAQI
30th Jul 2025247 PMAQI
30th Jul 2025318 PMAQI
30th Jul 2025319 PMAQI
30th Jul 20253210 PMAQI
30th Jul 20253211 PMAQI
31st Jul 20253312 AMAQI
31st Jul 2025411 AMAQI
31st Jul 2025432 AMAQI
31st Jul 2025433 AMAQI
31st Jul 2025434 AMAQI
26°C24/27°C
31st Jul 2025435 AMAQI
31st Jul 2025436 AMAQI
31st Jul 2025437 AMAQI
31st Jul 2025438 AMAQI
31st Jul 2025439 AMAQI
31st Jul 20252410 AMAQI
31st Jul 20252011 AMAQI
31st Jul 20251912 PMAQI
31st Jul 2025221 PMAQI
31st Jul 2025242 PMAQI
31st Jul 2025233 PMAQI
31st Jul 2025404 PMAQI
31st Jul 2025345 PMAQI
31st Jul 2025366 PMAQI
31st Jul 2025377 PMAQI
31st Jul 2025558 PMAQI
31st Jul 2025569 PMAQI
31st Jul 20255610 PMAQI
31st Jul 20255611 PMAQI
1st Aug 20255512 AMAQI
1st Aug 2025501 AMAQI
1st Aug 2025522 AMAQI
1st Aug 2025463 AMAQI
1st Aug 2025444 AMAQI
26°C24/29°C
1st Aug 2025445 AMAQI
1st Aug 2025486 AMAQI
1st Aug 2025547 AMAQI
1st Aug 2025698 AMAQI
1st Aug 2025649 AMAQI
1st Aug 20256610 AMAQI
1st Aug 20256811 AMAQI
1st Aug 20256412 PMAQI
1st Aug 2025601 PMAQI
1st Aug 2025632 PMAQI
1st Aug 2025603 PMAQI
1st Aug 2025564 PMAQI
1st Aug 2025545 PMAQI
1st Aug 2025556 PMAQI
1st Aug 2025547 PMAQI
1st Aug 2025558 PMAQI
1st Aug 2025569 PMAQI
1st Aug 20255410 PMAQI
1st Aug 20255511 PMAQI
2nd Aug 20255312 AMAQI
2nd Aug 2025541 AMAQI
2nd Aug 2025522 AMAQI
2nd Aug 2025543 AMAQI
2nd Aug 2025564 AMAQI
29°C26/32°C
2nd Aug 2025565 AMAQI
2nd Aug 2025566 AMAQI
2nd Aug 2025567 AMAQI
2nd Aug 2025588 AMAQI
2nd Aug 2025549 AMAQI
2nd Aug 20255910 AMAQI
2nd Aug 20254811 AMAQI
2nd Aug 20255012 PMAQI
2nd Aug 2025551 PMAQI
2nd Aug 2025562 PMAQI
2nd Aug 2025613 PMAQI
2nd Aug 2025504 PMAQI
2nd Aug 2025535 PMAQI
2nd Aug 2025556 PMAQI
2nd Aug 2025557 PMAQI
2nd Aug 2025568 PMAQI
2nd Aug 2025559 PMAQI
2nd Aug 20255310 PMAQI
2nd Aug 20255411 PMAQI
3rd Aug 20255312 AMAQI
3rd Aug 2025531 AMAQI
3rd Aug 2025582 AMAQI
3rd Aug 2025543 AMAQI
3rd Aug 2025544 AMAQI
27°C26/30°C
3rd Aug 2025545 AMAQI
3rd Aug 2025556 AMAQI
3rd Aug 2025557 AMAQI
3rd Aug 2025628 AMAQI
3rd Aug 2025589 AMAQI
3rd Aug 20255610 AMAQI
3rd Aug 20255811 AMAQI
3rd Aug 20255612 PMAQI
3rd Aug 2025471 PMAQI
3rd Aug 2025462 PMAQI
3rd Aug 2025553 PMAQI
3rd Aug 2025524 PMAQI
3rd Aug 2025525 PMAQI
3rd Aug 2025476 PMAQI
3rd Aug 2025527 PMAQI
3rd Aug 2025568 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 2025544 AMAQI
28°C26/32°C
4th Aug 2025545 AMAQI
4th Aug 2025556 AMAQI
4th Aug 2025547 AMAQI
4th Aug 2025628 AMAQI
4th Aug 2025669 AMAQI
4th Aug 20255910 AMAQI
4th Aug 20254811 AMAQI
4th Aug 20256012 PMAQI
4th Aug 2025601 PMAQI
4th Aug 2025542 PMAQI
4th Aug 2025533 PMAQI
4th Aug 2025554 PMAQI
4th Aug 2025495 PMAQI
4th Aug 2025496 PMAQI
4th Aug 2025527 PMAQI
4th Aug 2025528 PMAQI
4th Aug 2025539 PMAQI
4th Aug 20255510 PMAQI
4th Aug 20255311 PMAQI
5th Aug 20255312 AMAQI
5th Aug 2025541 AMAQI
5th Aug 2025552 AMAQI
5th Aug 2025563 AMAQI
5th Aug 2025564 AMAQI
29°C26/33°C
5th Aug 2025565 AMAQI
5th Aug 2025556 AMAQI
5th Aug 2025567 AMAQI
5th Aug 2025598 AMAQI
5th Aug 2025609 AMAQI
5th Aug 20255910 AMAQI
5th Aug 20256311 AMAQI
5th Aug 20255712 PMAQI
5th Aug 2025611 PMAQI
5th Aug 2025582 PMAQI
5th Aug 2025593 PMAQI
5th Aug 2025624 PMAQI
5th Aug 2025605 PMAQI
5th Aug 2025536 PMAQI
5th Aug 2025537 PMAQI
5th Aug 2025588 PMAQI
5th Aug 2025569 PMAQI
5th Aug 20256110 PMAQI
5th Aug 20255911 PMAQI
6th Aug 20255612 AMAQI
6th Aug 2025551 AMAQI
6th Aug 2025562 AMAQI
6th Aug 2025563 AMAQI
6th Aug 2025564 AMAQI
29°C26/33°C
6th Aug 2025565 AMAQI
6th Aug 2025566 AMAQI
6th Aug 2025577 AMAQI
6th Aug 2025628 AMAQI
6th Aug 2025579 AMAQI
6th Aug 20255910 AMAQI
6th Aug 20256111 AMAQI
6th Aug 20255412 PMAQI
6th Aug 2025601 PMAQI
6th Aug 2025582 PMAQI
6th Aug 2025673 PMAQI
6th Aug 2025554 PMAQI
6th Aug 2025575 PMAQI
6th Aug 2025556 PMAQI
6th Aug 2025597 PMAQI
6th Aug 2025568 PMAQI
6th Aug 2025579 PMAQI
6th Aug 20255810 PMAQI
6th Aug 20255911 PMAQI
7th Aug 20256412 AMAQI
7th Aug 2025561 AMAQI
7th Aug 2025552 AMAQI
7th Aug 2025573 AMAQI
7th Aug 2025564 AMAQI
30°C28/34°C
7th Aug 2025575 AMAQI
7th Aug 2025556 AMAQI
7th Aug 2025567 AMAQI
7th Aug 2025548 AMAQI
7th Aug 2025589 AMAQI
7th Aug 20256710 AMAQI
7th Aug 20256111 AMAQI
7th Aug 20255512 PMAQI
7th Aug 2025581 PMAQI
7th Aug 2025532 PMAQI
7th Aug 2025563 PMAQI
7th Aug 2025464 PMAQI
7th Aug 2025385 PMAQI
7th Aug 2025306 PMAQI
7th Aug 2025337 PMAQI
7th Aug 2025508 PMAQI
7th Aug 2025539 PMAQI
7th Aug 20255610 PMAQI
7th Aug 20255411 PMAQI
8th Aug 20255312 AMAQI
8th Aug 2025581 AMAQI
8th Aug 2025562 AMAQI
8th Aug 2025563 AMAQI
8th Aug 2025574 AMAQI
30°C28/33°C
8th Aug 2025575 AMAQI
5 AM8th Aug 2025576 AMAQI
8th Aug 2025567 AMAQI
8th Aug 2025428 AMAQI
8th Aug 2025579 AMAQI
8th Aug 20255410 AMAQI
8th Aug 20255811 AMAQI
8th Aug 20256012 PMAQI
12 PM8th Aug 2025551 PMAQI
8th Aug 2025552 PMAQI
8th Aug 2025603 PMAQI
8th Aug 2025634 PMAQI
8th Aug 2025565 PMAQI
8th Aug 2025566 PMAQI
8th Aug 2025587 PMAQI
7 PM8th Aug 2025568 PMAQI
8th Aug 2025569 PMAQI
8th Aug 20255610 PMAQI
12 AM
4 AM
--°C/°C
Day time
Avg. Highest Time
5 AM - 7 AM
54AQI
3 hours / Day
90 hours / Month
Avg. Lowest Time
8 AM - 7 PM
48AQI
12 hours / Day
360 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 7 AM (Avg. 54), while the lowest AQI was between 8 AM to 7 PM (Avg. 48).
Night time
Avg. Highest Time
12 AM - 11 PM
54AQI
9 hours / Day
270 hours / Month
Avg. Lowest Time
12 AM - 11 PM
54AQI
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. 54), while the lowest AQI was between 12 AM to 11 PM (Avg. 54).
2025 Days Vs Air Quality
Chacngzhang, Nantong, Jiangsu, China
2025
10%
22
66%
144
21%
47
3%
6
Total number of days with different AQI categories in last 220 days in 2025 (145 days remaining)
Good
22 DaysModerate
144 DaysPoor
47 DaysUnhealthy
6 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 10%
Health Risk Level:
Extreme
In 2025, 10% of 220 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
Chacngzhang, Nantong, Jiangsu, 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
112AQI
112AQI
2nd January 2025
88AQI
88AQI
3rd January 2025
98AQI
98AQI
4th January 2025
85AQI
85AQI
5th January 2025
144AQI
144AQI
6th January 2025
126AQI
126AQI
7th January 2025
116AQI
116AQI
8th January 2025
124AQI
124AQI
9th January 2025
71AQI
71AQI
10th January 2025
85AQI
85AQI
11th January 2025
108AQI
108AQI
12th January 2025
118AQI
118AQI
13th January 2025
137AQI
137AQI
14th January 2025
152AQI
152AQI
15th January 2025
84AQI
84AQI
16th January 2025
123AQI
123AQI
17th January 2025
117AQI
117AQI
18th January 2025
131AQI
131AQI
19th January 2025
154AQI
154AQI
20th January 2025
175AQI
175AQI
21st January 2025
165AQI
165AQI
22nd January 2025
111AQI
111AQI
23rd January 2025
104AQI
104AQI
24th January 2025
78AQI
78AQI
25th January 2025
68AQI
68AQI
26th January 2025
85AQI
85AQI
27th January 2025
73AQI
73AQI
28th January 2025
92AQI
92AQI
29th January 2025
120AQI
120AQI
30th January 2025
94AQI
94AQI
31st January 2025
110AQI
110AQI
1st February 2025
65AQI
65AQI
2nd February 2025
113AQI
113AQI
3rd February 2025
106AQI
106AQI
4th February 2025
111AQI
111AQI
5th February 2025
106AQI
106AQI
6th February 2025
83AQI
83AQI
7th February 2025
75AQI
75AQI
8th February 2025
66AQI
66AQI
9th February 2025
79AQI
79AQI
10th February 2025
96AQI
96AQI
11th February 2025
69AQI
69AQI
12th February 2025
136AQI
136AQI
13th February 2025
77AQI
77AQI
14th February 2025
94AQI
94AQI
15th February 2025
76AQI
76AQI
16th February 2025
144AQI
144AQI
17th February 2025
71AQI
71AQI
18th February 2025
105AQI
105AQI
19th February 2025
76AQI
76AQI
20th February 2025
70AQI
70AQI
21st February 2025
71AQI
71AQI
22nd February 2025
89AQI
89AQI
23rd February 2025
93AQI
93AQI
24th February 2025
102AQI
102AQI
25th February 2025
137AQI
137AQI
26th February 2025
148AQI
148AQI
27th February 2025
165AQI
165AQI
28th February 2025
137AQI
137AQI
1st March 2025
125AQI
125AQI
2nd March 2025
121AQI
121AQI
3rd March 2025
67AQI
67AQI
4th March 2025
61AQI
61AQI
5th March 2025
59AQI
59AQI
6th March 2025
81AQI
81AQI
7th March 2025
84AQI
84AQI
8th March 2025
122AQI
122AQI
9th March 2025
85AQI
85AQI
10th March 2025
89AQI
89AQI
11th March 2025
112AQI
112AQI
12th March 2025
73AQI
73AQI
13th March 2025
81AQI
81AQI
14th March 2025
63AQI
63AQI
15th March 2025
64AQI
64AQI
16th March 2025
78AQI
78AQI
17th March 2025
77AQI
77AQI
18th March 2025
65AQI
65AQI
19th March 2025
86AQI
86AQI
20th March 2025
109AQI
109AQI
21st March 2025
99AQI
99AQI
22nd March 2025
103AQI
103AQI
23rd March 2025
114AQI
114AQI
24th March 2025
106AQI
106AQI
25th March 2025
116AQI
116AQI
26th March 2025
127AQI
127AQI
27th March 2025
113AQI
113AQI
28th March 2025
88AQI
88AQI
29th March 2025
95AQI
95AQI
30th March 2025
70AQI
70AQI
31st March 2025
71AQI
71AQI
1st April 2025
75AQI
75AQI
2nd April 2025
111AQI
111AQI
3rd April 2025
78AQI
78AQI
4th April 2025
88AQI
88AQI
5th April 2025
110AQI
110AQI
6th April 2025
109AQI
109AQI
7th April 2025
112AQI
112AQI
8th April 2025
122AQI
122AQI
9th April 2025
138AQI
138AQI
10th April 2025
115AQI
115AQI
11th April 2025
134AQI
134AQI
12th April 2025
157AQI
157AQI
13th April 2025
102AQI
102AQI
14th April 2025
79AQI
79AQI
15th April 2025
78AQI
78AQI
16th April 2025
76AQI
76AQI
17th April 2025
86AQI
86AQI
18th April 2025
93AQI
93AQI
19th April 2025
95AQI
95AQI
20th April 2025
72AQI
72AQI
21st April 2025
80AQI
80AQI
22nd April 2025
73AQI
73AQI
23rd April 2025
100AQI
100AQI
24th April 2025
98AQI
98AQI
25th April 2025
73AQI
73AQI
26th April 2025
67AQI
67AQI
27th April 2025
73AQI
73AQI
28th April 2025
69AQI
69AQI
29th April 2025
78AQI
78AQI
30th April 2025
86AQI
86AQI
1st May 2025
79AQI
79AQI
2nd May 2025
82AQI
82AQI
3rd May 2025
68AQI
68AQI
4th May 2025
54AQI
54AQI
5th May 2025
69AQI
69AQI
6th May 2025
95AQI
95AQI
7th May 2025
83AQI
83AQI
8th May 2025
72AQI
72AQI
9th May 2025
54AQI
54AQI
10th May 2025
63AQI
63AQI
11th May 2025
71AQI
71AQI
12th May 2025
76AQI
76AQI
13th May 2025
76AQI
76AQI
14th May 2025
80AQI
80AQI
15th May 2025
103AQI
103AQI
16th May 2025
64AQI
64AQI
17th May 2025
89AQI
89AQI
18th May 2025
70AQI
70AQI
19th May 2025
85AQI
85AQI
20th May 2025
76AQI
76AQI
21st May 2025
62AQI
62AQI
22nd May 2025
73AQI
73AQI
23rd May 2025
51AQI
51AQI
24th May 2025
92AQI
92AQI
25th May 2025
73AQI
73AQI
26th May 2025
84AQI
84AQI
27th May 2025
70AQI
70AQI
28th May 2025
73AQI
73AQI
29th May 2025
87AQI
87AQI
30th May 2025
89AQI
89AQI
31st May 2025
90AQI
90AQI
1st June 2025
56AQI
56AQI
2nd June 2025
46AQI
46AQI
3rd June 2025
76AQI
76AQI
4th June 2025
99AQI
99AQI
5th June 2025
76AQI
76AQI
6th June 2025
80AQI
80AQI
7th June 2025
72AQI
72AQI
8th June 2025
43AQI
43AQI
9th June 2025
57AQI
57AQI
10th June 2025
56AQI
56AQI
11th June 2025
55AQI
55AQI
12th June 2025
51AQI
51AQI
13th June 2025
44AQI
44AQI
14th June 2025
63AQI
63AQI
15th June 2025
49AQI
49AQI
16th June 2025
56AQI
56AQI
17th June 2025
61AQI
61AQI
18th June 2025
62AQI
62AQI
19th June 2025
61AQI
61AQI
20th June 2025
55AQI
55AQI
21st June 2025
45AQI
45AQI
22nd June 2025
28AQI
28AQI
23rd June 2025
33AQI
33AQI
24th June 2025
38AQI
38AQI
25th June 2025
58AQI
58AQI
26th June 2025
66AQI
66AQI
27th June 2025
60AQI
60AQI
28th June 2025
56AQI
56AQI
29th June 2025
58AQI
58AQI
30th June 2025
58AQI
58AQI
1st July 2025
52AQI
52AQI
2nd July 2025
57AQI
57AQI
3rd July 2025
61AQI
61AQI
4th July 2025
62AQI
62AQI
5th July 2025
66AQI
66AQI
6th July 2025
68AQI
68AQI
7th July 2025
54AQI
54AQI
8th July 2025
45AQI
45AQI
9th July 2025
46AQI
46AQI
10th July 2025
73AQI
73AQI
11th July 2025
59AQI
59AQI
12th July 2025
52AQI
52AQI
13th July 2025
59AQI
59AQI
14th July 2025
60AQI
60AQI
15th July 2025
75AQI
75AQI
16th July 2025
74AQI
74AQI
17th July 2025
67AQI
67AQI
18th July 2025
58AQI
58AQI
19th July 2025
51AQI
51AQI
20th July 2025
46AQI
46AQI
21st July 2025
42AQI
42AQI
22nd July 2025
42AQI
42AQI
23rd July 2025
37AQI
37AQI
24th July 2025
46AQI
46AQI
25th July 2025
45AQI
45AQI
26th July 2025
36AQI
36AQI
27th July 2025
37AQI
37AQI
28th July 2025
39AQI
39AQI
29th July 2025
36AQI
36AQI
30th July 2025
31AQI
31AQI
31st July 2025
40AQI
40AQI
1st August 2025
55AQI
55AQI
2nd August 2025
54AQI
54AQI
3rd August 2025
54AQI
54AQI
4th August 2025
54AQI
54AQI
5th August 2025
57AQI
57AQI
6th August 2025
57AQI
57AQI
7th August 2025
55AQI
55AQI
111AQI
99AQI
90AQI
94AQI
76AQI
57AQI
52AQI
55AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202582AQI
12
15
4
16
11
1
20
11
20
9
1
30
1
8
22
14
17
7
22
144
47
6
Highest AQI recorded in
January111AQI
Lowest AQI recorded in
July52AQI
202474AQI
1
12
6
11
1
7
10
7
4
1
16
13
2
8
17
5
6
23
2
11
19
21
10
15
16
20
10
13
16
2
6
18
6
11
20
108
178
61
17
2
Highest AQI recorded in
January122AQI
Lowest AQI recorded in
September41AQI
202383AQI
1
12
13
5
19
8
1
1
15
12
3
18
10
1
1
5
21
5
7
18
5
14
17
23
7
1
15
13
2
10
15
4
2
2
11
12
1
1
10
11
8
1
79
176
83
21
2
Highest AQI recorded in
December117AQI
Lowest AQI recorded in
August45AQI
202285AQI
1
13
10
7
3
10
7
1
2
14
13
2
2
19
8
1
4
22
5
9
17
4
6
18
1
9
14
4
1
7
21
3
5
16
6
3
2
15
10
4
50
179
71
19
Highest AQI recorded in
August129AQI
Lowest AQI recorded in
October66AQI
202185AQI
9
19
3
3
16
6
3
15
12
3
1
2
19
7
2
1
21
6
3
7
18
5
17
12
2
9
10
2
10
18
2
9
20
2
4
14
11
1
2
10
12
7
64
182
86
22
1
Highest AQI recorded in
January114AQI
Lowest AQI recorded in
July54AQI
202080AQI
5
7
1
2
8
10
1
1
9
8
6
23
1
11
20
6
25
1
22
7
4
24
2
1
1
21
6
2
3
10
11
6
1
40
169
46
10
1
Highest AQI recorded in
December114AQI
Lowest AQI recorded in
July60AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2021(Avg.)
85AQILeast Polluted Year Recorded
2024(Avg.)
74AQIChacngzhang's annual 2025 AQI (82) shows an average percentage change of 0.6% (worsened AQI) compared to previous years: 2020 (80), 2021 (85), 2022 (85), 2023 (83), 2024 (74).
