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+
October Air Quality Analysis
Chacngzhang, Nantong, Jiangsu, China
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
26th Oct 2023
161AQILowest AQI recorded on
7th Oct 2023
25AQISame Day Analysis (18th October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 49 of Good air quality, showing improvement over 2024 and 2023 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 18th Oct - 19th Oct 2025
Chacngzhang, Nantong, Jiangsu, China
AQI
Day
Night
.
5 AM18th Oct 2025
5 PM
4 AM19th Oct 2025
Day time
Avg. Highest Time
6AM18th Oct
50AQI
Avg. Lowest Time
2PM18th Oct
16AQI
Night time
Avg. Highest Time
7PM18th Oct
55AQI
Avg. Lowest Time
10PM18th Oct
52AQI
In the last 24 hours,
Chacngzhang's AQI reached its highest point of 55 at 7 PM during the Night, while the lowest point, 16, was recorded at 2 PM during the Day between 18th Oct and 19th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Chacngzhang, Nantong, Jiangsu, China
SepOct
19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th
Day
Night
19th Sep 2025565 AMAQI
19th Sep 2025576 AMAQI
19th Sep 2025567 AMAQI
19th Sep 2025378 AMAQI
19th Sep 2025339 AMAQI
19th Sep 20252510 AMAQI
19th Sep 20253111 AMAQI
19th Sep 20253212 PMAQI
19th Sep 2025341 PMAQI
19th Sep 2025232 PMAQI
19th Sep 2025263 PMAQI
19th Sep 2025404 PMAQI
19th Sep 2025525 PMAQI
19th Sep 2025536 PMAQI
19th Sep 2025567 PMAQI
19th Sep 2025568 PMAQI
19th Sep 2025559 PMAQI
19th Sep 20255410 PMAQI
19th Sep 20255211 PMAQI
20th Sep 20254712 AMAQI
20th Sep 2025581 AMAQI
20th Sep 2025572 AMAQI
20th Sep 2025563 AMAQI
20th Sep 2025544 AMAQI
25°C22/28°C
20th Sep 2025545 AMAQI
20th Sep 2025546 AMAQI
20th Sep 2025547 AMAQI
20th Sep 2025308 AMAQI
20th Sep 2025389 AMAQI
20th Sep 20254210 AMAQI
20th Sep 20254411 AMAQI
20th Sep 20254012 PMAQI
20th Sep 2025411 PMAQI
20th Sep 2025392 PMAQI
20th Sep 2025473 PMAQI
20th Sep 2025424 PMAQI
20th Sep 2025455 PMAQI
20th Sep 2025406 PMAQI
20th Sep 2025547 PMAQI
20th Sep 2025558 PMAQI
20th Sep 2025579 PMAQI
20th Sep 20255910 PMAQI
20th Sep 20256011 PMAQI
21st Sep 20255812 AMAQI
21st Sep 2025561 AMAQI
21st Sep 2025552 AMAQI
21st Sep 2025543 AMAQI
21st Sep 2025534 AMAQI
22°C21/24°C
21st Sep 2025535 AMAQI
21st Sep 2025536 AMAQI
21st Sep 2025537 AMAQI
21st Sep 2025648 AMAQI
21st Sep 2025659 AMAQI
21st Sep 20253010 AMAQI
21st Sep 20252811 AMAQI
21st Sep 20252312 PMAQI
21st Sep 2025261 PMAQI
21st Sep 2025262 PMAQI
21st Sep 2025303 PMAQI
21st Sep 2025354 PMAQI
21st Sep 2025375 PMAQI
21st Sep 2025326 PMAQI
21st Sep 2025357 PMAQI
21st Sep 2025528 PMAQI
21st Sep 2025559 PMAQI
21st Sep 20255410 PMAQI
21st Sep 20255011 PMAQI
22nd Sep 20255212 AMAQI
22nd Sep 2025541 AMAQI
22nd Sep 2025552 AMAQI
22nd Sep 2025543 AMAQI
22nd Sep 2025534 AMAQI
23°C21/26°C
22nd Sep 2025535 AMAQI
22nd Sep 2025536 AMAQI
22nd Sep 2025537 AMAQI
22nd Sep 2025468 AMAQI
22nd Sep 2025489 AMAQI
22nd Sep 20253610 AMAQI
22nd Sep 20253411 AMAQI
22nd Sep 20253812 PMAQI
22nd Sep 2025371 PMAQI
22nd Sep 2025332 PMAQI
22nd Sep 2025283 PMAQI
22nd Sep 2025304 PMAQI
22nd Sep 2025485 PMAQI
22nd Sep 2025446 PMAQI
22nd Sep 2025527 PMAQI
22nd Sep 2025608 PMAQI
22nd Sep 2025519 PMAQI
22nd Sep 20255810 PMAQI
22nd Sep 20255711 PMAQI
23rd Sep 20255412 AMAQI
23rd Sep 2025541 AMAQI
23rd Sep 2025542 AMAQI
23rd Sep 2025533 AMAQI
23rd Sep 2025524 AMAQI
24°C21/28°C
23rd Sep 2025525 AMAQI
23rd Sep 2025526 AMAQI
23rd Sep 2025527 AMAQI
23rd Sep 2025428 AMAQI
23rd Sep 2025349 AMAQI
23rd Sep 20253010 AMAQI
23rd Sep 20254211 AMAQI
23rd Sep 20253912 PMAQI
23rd Sep 2025401 PMAQI
23rd Sep 2025292 PMAQI
23rd Sep 2025383 PMAQI
23rd Sep 2025444 PMAQI
23rd Sep 2025355 PMAQI
23rd Sep 2025286 PMAQI
23rd Sep 2025447 PMAQI
23rd Sep 2025528 PMAQI
23rd Sep 2025509 PMAQI
23rd Sep 20254710 PMAQI
23rd Sep 20254711 PMAQI
24th Sep 20254812 AMAQI
24th Sep 2025521 AMAQI
24th Sep 2025542 AMAQI
24th Sep 2025533 AMAQI
24th Sep 2025524 AMAQI
26°C23/29°C
24th Sep 2025525 AMAQI
24th Sep 2025526 AMAQI
24th Sep 2025527 AMAQI
24th Sep 2025288 AMAQI
24th Sep 2025209 AMAQI
24th Sep 20252010 AMAQI
24th Sep 20252411 AMAQI
24th Sep 20253112 PMAQI
24th Sep 2025341 PMAQI
24th Sep 2025322 PMAQI
24th Sep 2025383 PMAQI
24th Sep 2025294 PMAQI
24th Sep 2025215 PMAQI
24th Sep 2025206 PMAQI
24th Sep 2025267 PMAQI
24th Sep 2025418 PMAQI
24th Sep 2025409 PMAQI
24th Sep 20254410 PMAQI
24th Sep 20254511 PMAQI
25th Sep 20254612 AMAQI
25th Sep 2025421 AMAQI
25th Sep 2025522 AMAQI
25th Sep 2025513 AMAQI
25th Sep 2025484 AMAQI
25°C24/27°C
25th Sep 2025505 AMAQI
25th Sep 2025486 AMAQI
25th Sep 2025487 AMAQI
25th Sep 2025268 AMAQI
25th Sep 2025179 AMAQI
25th Sep 20251910 AMAQI
25th Sep 20252211 AMAQI
25th Sep 20254912 PMAQI
25th Sep 2025461 PMAQI
25th Sep 2025522 PMAQI
25th Sep 2025503 PMAQI
25th Sep 2025524 PMAQI
25th Sep 2025365 PMAQI
25th Sep 2025226 PMAQI
25th Sep 2025247 PMAQI
25th Sep 2025198 PMAQI
25th Sep 2025229 PMAQI
25th Sep 20252110 PMAQI
25th Sep 20252011 PMAQI
26th Sep 20252112 AMAQI
26th Sep 2025201 AMAQI
26th Sep 2025202 AMAQI
26th Sep 2025203 AMAQI
26th Sep 2025214 AMAQI
25°C24/27°C
26th Sep 2025275 AMAQI
26th Sep 2025346 AMAQI
26th Sep 2025407 AMAQI
26th Sep 2025498 AMAQI
26th Sep 2025559 AMAQI
26th Sep 20256110 AMAQI
26th Sep 20256811 AMAQI
26th Sep 20256412 PMAQI
26th Sep 2025611 PMAQI
26th Sep 2025602 PMAQI
26th Sep 2025593 PMAQI
26th Sep 2025594 PMAQI
26th Sep 2025525 PMAQI
26th Sep 2025446 PMAQI
26th Sep 2025387 PMAQI
26th Sep 2025278 PMAQI
26th Sep 2025269 PMAQI
26th Sep 20252810 PMAQI
26th Sep 20252811 PMAQI
27th Sep 20252812 AMAQI
27th Sep 2025281 AMAQI
27th Sep 2025282 AMAQI
27th Sep 2025283 AMAQI
27th Sep 2025284 AMAQI
27°C24/30°C
27th Sep 2025285 AMAQI
27th Sep 2025286 AMAQI
27th Sep 2025287 AMAQI
27th Sep 2025288 AMAQI
27th Sep 2025289 AMAQI
27th Sep 20252810 AMAQI
27th Sep 20253511 AMAQI
27th Sep 20255712 PMAQI
27th Sep 2025701 PMAQI
27th Sep 2025692 PMAQI
27th Sep 2025613 PMAQI
27th Sep 2025554 PMAQI
27th Sep 2025505 PMAQI
27th Sep 2025376 PMAQI
27th Sep 2025357 PMAQI
27th Sep 2025408 PMAQI
27th Sep 2025469 PMAQI
27th Sep 20254710 PMAQI
27th Sep 20254111 PMAQI
28th Sep 20253312 AMAQI
28th Sep 2025351 AMAQI
28th Sep 2025392 AMAQI
28th Sep 2025363 AMAQI
28th Sep 2025304 AMAQI
25°C23/29°C
28th Sep 2025305 AMAQI
28th Sep 2025356 AMAQI
28th Sep 2025447 AMAQI
28th Sep 2025568 AMAQI
28th Sep 2025589 AMAQI
28th Sep 20255910 AMAQI
28th Sep 20256611 AMAQI
28th Sep 20257712 PMAQI
28th Sep 2025821 PMAQI
28th Sep 2025792 PMAQI
28th Sep 2025713 PMAQI
28th Sep 2025634 PMAQI
28th Sep 2025565 PMAQI
28th Sep 2025566 PMAQI
28th Sep 2025577 PMAQI
28th Sep 2025598 PMAQI
28th Sep 2025589 PMAQI
28th Sep 20255410 PMAQI
28th Sep 20254111 PMAQI
29th Sep 20253312 AMAQI
29th Sep 2025291 AMAQI
29th Sep 2025412 AMAQI
29th Sep 2025483 AMAQI
29th Sep 2025414 AMAQI
26°C24/31°C
29th Sep 2025385 AMAQI
29th Sep 2025456 AMAQI
29th Sep 2025357 AMAQI
29th Sep 2025388 AMAQI
29th Sep 2025359 AMAQI
29th Sep 20255310 AMAQI
29th Sep 20255211 AMAQI
29th Sep 20255112 PMAQI
29th Sep 2025641 PMAQI
29th Sep 2025582 PMAQI
29th Sep 2025623 PMAQI
29th Sep 2025574 PMAQI
29th Sep 2025575 PMAQI
29th Sep 2025546 PMAQI
29th Sep 2025397 PMAQI
29th Sep 2025368 PMAQI
29th Sep 2025389 PMAQI
29th Sep 20254010 PMAQI
29th Sep 20253511 PMAQI
30th Sep 20254812 AMAQI
30th Sep 2025401 AMAQI
30th Sep 2025482 AMAQI
30th Sep 2025563 AMAQI
30th Sep 2025564 AMAQI
23°C21/25°C
30th Sep 2025575 AMAQI
30th Sep 2025576 AMAQI
30th Sep 2025637 AMAQI
30th Sep 2025628 AMAQI
30th Sep 2025609 AMAQI
30th Sep 20255410 AMAQI
30th Sep 20255611 AMAQI
30th Sep 20256112 PMAQI
30th Sep 2025571 PMAQI
30th Sep 2025562 PMAQI
30th Sep 2025583 PMAQI
30th Sep 2025644 PMAQI
30th Sep 2025735 PMAQI
30th Sep 2025686 PMAQI
30th Sep 2025657 PMAQI
30th Sep 2025738 PMAQI
30th Sep 2025739 PMAQI
30th Sep 20257710 PMAQI
30th Sep 20257711 PMAQI
1st Oct 20257912 AMAQI
1st Oct 2025801 AMAQI
1st Oct 2025762 AMAQI
1st Oct 2025803 AMAQI
1st Oct 2025854 AMAQI
21°C21/22°C
1st Oct 2025965 AMAQI
1st Oct 2025936 AMAQI
1st Oct 20251027 AMAQI
1st Oct 2025988 AMAQI
1st Oct 2025839 AMAQI
1st Oct 20258210 AMAQI
1st Oct 20257911 AMAQI
1st Oct 20258212 PMAQI
1st Oct 2025821 PMAQI
1st Oct 2025812 PMAQI
1st Oct 2025823 PMAQI
1st Oct 2025784 PMAQI
1st Oct 2025765 PMAQI
1st Oct 2025726 PMAQI
1st Oct 2025697 PMAQI
1st Oct 2025718 PMAQI
1st Oct 2025809 PMAQI
1st Oct 20258010 PMAQI
1st Oct 20258211 PMAQI
2nd Oct 20257412 AMAQI
2nd Oct 2025711 AMAQI
2nd Oct 2025702 AMAQI
2nd Oct 2025703 AMAQI
2nd Oct 2025694 AMAQI
23°C20/26°C
2nd Oct 2025715 AMAQI
2nd Oct 2025696 AMAQI
2nd Oct 2025697 AMAQI
2nd Oct 2025668 AMAQI
2nd Oct 2025639 AMAQI
2nd Oct 20255810 AMAQI
2nd Oct 20255911 AMAQI
2nd Oct 20255512 PMAQI
2nd Oct 2025561 PMAQI
2nd Oct 2025602 PMAQI
2nd Oct 2025563 PMAQI
2nd Oct 2025554 PMAQI
2nd Oct 2025575 PMAQI
2nd Oct 2025626 PMAQI
2nd Oct 2025567 PMAQI
2nd Oct 2025688 PMAQI
2nd Oct 2025729 PMAQI
2nd Oct 20257010 PMAQI
2nd Oct 20256511 PMAQI
3rd Oct 20256212 AMAQI
3rd Oct 2025621 AMAQI
3rd Oct 2025582 AMAQI
3rd Oct 2025643 AMAQI
3rd Oct 2025704 AMAQI
25°C23/30°C
3rd Oct 2025725 AMAQI
3rd Oct 2025726 AMAQI
3rd Oct 2025697 AMAQI
3rd Oct 2025548 AMAQI
3rd Oct 2025319 AMAQI
3rd Oct 20253610 AMAQI
3rd Oct 20254211 AMAQI
3rd Oct 20254412 PMAQI
3rd Oct 2025551 PMAQI
3rd Oct 2025642 PMAQI
3rd Oct 2025613 PMAQI
3rd Oct 2025644 PMAQI
3rd Oct 2025655 PMAQI
3rd Oct 2025606 PMAQI
3rd Oct 2025537 PMAQI
3rd Oct 2025648 PMAQI
3rd Oct 2025469 PMAQI
3rd Oct 20254310 PMAQI
3rd Oct 20254811 PMAQI
4th Oct 20253912 AMAQI
4th Oct 2025531 AMAQI
4th Oct 2025602 AMAQI
4th Oct 2025643 AMAQI
4th Oct 2025624 AMAQI
23°C21/25°C
4th Oct 2025615 AMAQI
4th Oct 2025636 AMAQI
4th Oct 2025637 AMAQI
4th Oct 2025588 AMAQI
4th Oct 2025559 AMAQI
4th Oct 20255910 AMAQI
4th Oct 20256811 AMAQI
4th Oct 20256912 PMAQI
4th Oct 2025701 PMAQI
4th Oct 2025692 PMAQI
4th Oct 2025753 PMAQI
4th Oct 2025734 PMAQI
4th Oct 2025665 PMAQI
4th Oct 2025656 PMAQI
4th Oct 2025797 PMAQI
4th Oct 2025798 PMAQI
4th Oct 2025799 PMAQI
4th Oct 20256710 PMAQI
4th Oct 20256611 PMAQI
5th Oct 20256712 AMAQI
5th Oct 2025521 AMAQI
5th Oct 2025562 AMAQI
5th Oct 2025623 AMAQI
5th Oct 2025534 AMAQI
24°C21/27°C
5th Oct 2025535 AMAQI
5th Oct 2025526 AMAQI
5th Oct 2025497 AMAQI
5th Oct 2025528 AMAQI
5th Oct 2025539 AMAQI
5th Oct 20255910 AMAQI
5th Oct 20256011 AMAQI
5th Oct 20256412 PMAQI
5th Oct 2025621 PMAQI
5th Oct 2025592 PMAQI
5th Oct 2025593 PMAQI
5th Oct 2025684 PMAQI
5th Oct 2025815 PMAQI
5th Oct 2025876 PMAQI
5th Oct 2025857 PMAQI
5th Oct 2025828 PMAQI
5th Oct 2025859 PMAQI
5th Oct 20258610 PMAQI
5th Oct 20259811 PMAQI
6th Oct 20259512 AMAQI
6th Oct 2025901 AMAQI
6th Oct 2025832 AMAQI
6th Oct 2025793 AMAQI
6th Oct 2025764 AMAQI
26°C23/30°C
6th Oct 2025705 AMAQI
6th Oct 2025546 AMAQI
6th Oct 2025527 AMAQI
6th Oct 2025588 AMAQI
6th Oct 2025649 AMAQI
6th Oct 20256710 AMAQI
6th Oct 20257411 AMAQI
6th Oct 20257812 PMAQI
6th Oct 20251171 PMAQI
6th Oct 20251172 PMAQI
6th Oct 20251053 PMAQI
6th Oct 2025934 PMAQI
6th Oct 2025885 PMAQI
6th Oct 2025926 PMAQI
6th Oct 20251097 PMAQI
6th Oct 20251128 PMAQI
6th Oct 2025959 PMAQI
6th Oct 202510910 PMAQI
6th Oct 20258411 PMAQI
7th Oct 20258712 AMAQI
7th Oct 20251081 AMAQI
28°C25/32°C
7th Oct 2025757 PMAQI
7th Oct 2025568 PMAQI
7th Oct 2025589 PMAQI
7th Oct 20255610 PMAQI
7th Oct 20255211 PMAQI
8th Oct 20255312 AMAQI
8th Oct 2025551 AMAQI
8th Oct 2025522 AMAQI
8th Oct 2025443 AMAQI
8th Oct 2025454 AMAQI
25°C23/28°C
8th Oct 2025505 AMAQI
8th Oct 2025486 AMAQI
8th Oct 2025527 AMAQI
8th Oct 2025518 AMAQI
8th Oct 2025519 AMAQI
8th Oct 20254410 AMAQI
8th Oct 20254811 AMAQI
8th Oct 20254412 PMAQI
8th Oct 2025391 PMAQI
8th Oct 2025382 PMAQI
8th Oct 2025413 PMAQI
8th Oct 2025444 PMAQI
8th Oct 2025395 PMAQI
8th Oct 2025436 PMAQI
8th Oct 2025557 PMAQI
8th Oct 2025538 PMAQI
8th Oct 2025569 PMAQI
8th Oct 20254910 PMAQI
8th Oct 20255011 PMAQI
9th Oct 20254812 AMAQI
9th Oct 2025491 AMAQI
9th Oct 2025502 AMAQI
9th Oct 2025523 AMAQI
9th Oct 2025564 AMAQI
23°C21/27°C
9th Oct 2025535 AMAQI
9th Oct 2025536 AMAQI
9th Oct 2025437 AMAQI
9th Oct 2025488 AMAQI
9th Oct 2025529 AMAQI
9th Oct 20255210 AMAQI
9th Oct 20254711 AMAQI
9th Oct 20254612 PMAQI
9th Oct 2025441 PMAQI
9th Oct 2025462 PMAQI
9th Oct 2025533 PMAQI
9th Oct 2025564 PMAQI
9th Oct 2025555 PMAQI
9th Oct 2025536 PMAQI
9th Oct 2025547 PMAQI
9th Oct 2025558 PMAQI
9th Oct 2025689 PMAQI
9th Oct 20257010 PMAQI
9th Oct 20256511 PMAQI
10th Oct 20255112 AMAQI
10th Oct 2025561 AMAQI
10th Oct 2025522 AMAQI
10th Oct 2025473 AMAQI
10th Oct 2025484 AMAQI
23°C20/28°C
10th Oct 2025485 AMAQI
10th Oct 2025526 AMAQI
10th Oct 2025417 AMAQI
10th Oct 2025418 AMAQI
10th Oct 2025469 AMAQI
10th Oct 20254610 AMAQI
10th Oct 20254711 AMAQI
10th Oct 20254912 PMAQI
10th Oct 2025571 PMAQI
10th Oct 2025582 PMAQI
10th Oct 2025573 PMAQI
10th Oct 2025564 PMAQI
10th Oct 2025595 PMAQI
10th Oct 2025666 PMAQI
10th Oct 2025697 PMAQI
10th Oct 2025718 PMAQI
10th Oct 2025699 PMAQI
10th Oct 20255810 PMAQI
10th Oct 20255011 PMAQI
11th Oct 20254412 AMAQI
11th Oct 2025441 AMAQI
11th Oct 2025472 AMAQI
11th Oct 2025523 AMAQI
11th Oct 2025464 AMAQI
25°C22/29°C
11th Oct 2025395 AMAQI
11th Oct 2025406 AMAQI
11th Oct 2025367 AMAQI
11th Oct 2025478 AMAQI
11th Oct 2025539 AMAQI
11th Oct 20255610 AMAQI
11th Oct 20255311 AMAQI
11th Oct 20255712 PMAQI
11th Oct 2025601 PMAQI
11th Oct 2025652 PMAQI
11th Oct 2025723 PMAQI
11th Oct 2025794 PMAQI
11th Oct 2025925 PMAQI
11th Oct 20251036 PMAQI
11th Oct 20251177 PMAQI
11th Oct 20251128 PMAQI
11th Oct 20251079 PMAQI
11th Oct 20259910 PMAQI
11th Oct 20259111 PMAQI
12th Oct 20258612 AMAQI
12th Oct 2025811 AMAQI
12th Oct 2025832 AMAQI
12th Oct 2025793 AMAQI
12th Oct 2025764 AMAQI
26°C23/30°C
12th Oct 2025815 AMAQI
12th Oct 2025756 AMAQI
12th Oct 2025807 AMAQI
12th Oct 2025808 AMAQI
12th Oct 20251029 AMAQI
12th Oct 20259110 AMAQI
12th Oct 20259011 AMAQI
12th Oct 20258912 PMAQI
12th Oct 20251021 PMAQI
12th Oct 20251062 PMAQI
12th Oct 20251053 PMAQI
12th Oct 20251054 PMAQI
12th Oct 20251035 PMAQI
12th Oct 20251076 PMAQI
12th Oct 20251037 PMAQI
12th Oct 2025868 PMAQI
12th Oct 2025869 PMAQI
12th Oct 20257610 PMAQI
12th Oct 20257411 PMAQI
13th Oct 20257712 AMAQI
13th Oct 2025741 AMAQI
13th Oct 2025802 AMAQI
13th Oct 2025793 AMAQI
13th Oct 2025824 AMAQI
26°C23/29°C
13th Oct 2025855 AMAQI
13th Oct 2025866 AMAQI
13th Oct 2025927 AMAQI
13th Oct 2025918 AMAQI
13th Oct 2025949 AMAQI
13th Oct 202510210 AMAQI
13th Oct 20259411 AMAQI
13th Oct 20258912 PMAQI
13th Oct 2025971 PMAQI
13th Oct 20251042 PMAQI
13th Oct 2025933 PMAQI
13th Oct 20251004 PMAQI
13th Oct 20251015 PMAQI
13th Oct 20251056 PMAQI
13th Oct 20251207 PMAQI
13th Oct 20251138 PMAQI
13th Oct 20251149 PMAQI
13th Oct 202510110 PMAQI
13th Oct 20259411 PMAQI
14th Oct 20258812 AMAQI
14th Oct 2025701 AMAQI
14th Oct 2025662 AMAQI
14th Oct 2025693 AMAQI
14th Oct 2025534 AMAQI
24°C22/25°C
14th Oct 2025535 AMAQI
14th Oct 2025546 AMAQI
14th Oct 2025537 AMAQI
14th Oct 2025518 AMAQI
14th Oct 2025519 AMAQI
14th Oct 20255710 AMAQI
14th Oct 20254011 AMAQI
14th Oct 20254012 PMAQI
14th Oct 2025401 PMAQI
14th Oct 2025412 PMAQI
14th Oct 2025383 PMAQI
14th Oct 2025384 PMAQI
14th Oct 2025405 PMAQI
14th Oct 2025346 PMAQI
14th Oct 2025427 PMAQI
14th Oct 2025528 PMAQI
14th Oct 2025529 PMAQI
14th Oct 20255910 PMAQI
14th Oct 20255911 PMAQI
15th Oct 20255212 AMAQI
15th Oct 2025501 AMAQI
15th Oct 2025482 AMAQI
15th Oct 2025493 AMAQI
15th Oct 2025464 AMAQI
21°C20/21°C
15th Oct 2025395 AMAQI
15th Oct 2025396 AMAQI
15th Oct 2025407 AMAQI
15th Oct 2025398 AMAQI
15th Oct 2025489 AMAQI
15th Oct 20255110 AMAQI
15th Oct 20255111 AMAQI
15th Oct 20255012 PMAQI
15th Oct 2025481 PMAQI
15th Oct 2025582 PMAQI
15th Oct 2025643 PMAQI
15th Oct 2025674 PMAQI
15th Oct 2025655 PMAQI
15th Oct 2025666 PMAQI
15th Oct 2025747 PMAQI
15th Oct 2025788 PMAQI
15th Oct 2025969 PMAQI
15th Oct 202510210 PMAQI
15th Oct 202511611 PMAQI
16th Oct 202512312 AMAQI
16th Oct 20251071 AMAQI
16th Oct 2025862 AMAQI
16th Oct 2025833 AMAQI
16th Oct 2025804 AMAQI
24°C21/27°C
16th Oct 2025625 AMAQI
16th Oct 2025556 AMAQI
16th Oct 2025537 AMAQI
16th Oct 2025568 AMAQI
16th Oct 2025549 AMAQI
16th Oct 20255410 AMAQI
16th Oct 20255311 AMAQI
16th Oct 20255212 PMAQI
16th Oct 2025501 PMAQI
16th Oct 2025482 PMAQI
16th Oct 2025493 PMAQI
16th Oct 2025454 PMAQI
16th Oct 2025505 PMAQI
16th Oct 2025466 PMAQI
16th Oct 2025467 PMAQI
16th Oct 2025488 PMAQI
16th Oct 2025499 PMAQI
16th Oct 20254910 PMAQI
16th Oct 20253711 PMAQI
17th Oct 20254212 AMAQI
17th Oct 2025381 AMAQI
17th Oct 2025452 AMAQI
17th Oct 2025453 AMAQI
17th Oct 2025454 AMAQI
22°C21/24°C
17th Oct 2025455 AMAQI
17th Oct 2025466 AMAQI
17th Oct 2025507 AMAQI
17th Oct 2025428 AMAQI
17th Oct 2025399 AMAQI
17th Oct 20254010 AMAQI
17th Oct 20254211 AMAQI
17th Oct 20254212 PMAQI
17th Oct 2025391 PMAQI
17th Oct 2025392 PMAQI
17th Oct 2025433 PMAQI
17th Oct 2025434 PMAQI
17th Oct 2025485 PMAQI
17th Oct 2025616 PMAQI
17th Oct 2025577 PMAQI
17th Oct 2025568 PMAQI
17th Oct 2025529 PMAQI
17th Oct 20255810 PMAQI
17th Oct 20255611 PMAQI
18th Oct 20255412 AMAQI
18th Oct 2025561 AMAQI
18th Oct 2025542 AMAQI
18th Oct 2025543 AMAQI
18th Oct 2025534 AMAQI
23°C21/26°C
18th Oct 2025545 AMAQI
18th Oct 2025506 AMAQI
18th Oct 2025487 AMAQI
18th Oct 2025468 AMAQI
18th Oct 2025399 AMAQI
18th Oct 20253410 AMAQI
18th Oct 20254211 AMAQI
18th Oct 20254212 PMAQI
18th Oct 2025241 PMAQI
18th Oct 2025162 PMAQI
18th Oct 2025293 PMAQI
18th Oct 2025464 PMAQI
18th Oct 2025385 PMAQI
18th Oct 2025526 PMAQI
18th Oct 2025557 PMAQI
18th Oct 2025558 PMAQI
18th Oct 2025529 PMAQI
18th Oct 20255210 PMAQI
18th Oct 20255411 PMAQI
19th Oct 20255412 AMAQI
19th Oct 2025551 AMAQI
19th Oct 2025542 AMAQI
19th Oct 2025553 AMAQI
19th Oct 2025534 AMAQI
20°C18/20°C
19th Oct 2025505 AMAQI
5 AM19th Oct 2025486 AMAQI
19th Oct 2025437 AMAQI
19th Oct 2025458 AMAQI
19th Oct 2025399 AMAQI
19th Oct 20254110 AMAQI
19th Oct 20255211 AMAQI
11 AM19th Oct 20255612 PMAQI
19th Oct 2025561 PMAQI
5 PM
11 PM
4 AM
--°C/°C
Day time
Avg. Highest Time
1 PM - 5 PM
57AQI
5 hours / Day
150 hours / Month
Avg. Lowest Time
8 AM - 11 AM
51AQI
4 hours / Day
120 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 1 PM to 5 PM (Avg. 57), while the lowest AQI was between 8 AM to 11 AM (Avg. 51).
Night time
Avg. Highest Time
8 PM - 10 PM
63AQI
3 hours / Day
90 hours / Month
Avg. Lowest Time
4 AM
55AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 8 PM to 10 PM (Avg. 63), while the lowest AQI was between 4 AM to 4 AM (Avg. 55).
2025 Days Vs Air Quality
Chacngzhang, Nantong, Jiangsu, China
2025
14%
40
68%
198
16%
47
2%
6
Total number of days with different AQI categories in last 292 days in 2025 (73 days remaining)
Good
40 DaysModerate
198 DaysPoor
47 DaysUnhealthy
6 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 14%
Health Risk Level:
Extreme
In 2025, 14% of 292 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.
-1th undefined 2025
-1th undefined 2025
-1th undefined 2025
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
53AQI
53AQI
8th August 2025
56AQI
56AQI
9th August 2025
57AQI
57AQI
10th August 2025
46AQI
46AQI
11th August 2025
51AQI
51AQI
12th August 2025
58AQI
58AQI
13th August 2025
57AQI
57AQI
14th August 2025
50AQI
50AQI
15th August 2025
48AQI
48AQI
16th August 2025
51AQI
51AQI
17th August 2025
54AQI
54AQI
18th August 2025
55AQI
55AQI
19th August 2025
56AQI
56AQI
20th August 2025
58AQI
58AQI
21st August 2025
65AQI
65AQI
22nd August 2025
61AQI
61AQI
23rd August 2025
58AQI
58AQI
24th August 2025
56AQI
56AQI
25th August 2025
59AQI
59AQI
26th August 2025
58AQI
58AQI
27th August 2025
59AQI
59AQI
28th August 2025
56AQI
56AQI
29th August 2025
59AQI
59AQI
30th August 2025
55AQI
55AQI
31st August 2025
56AQI
56AQI
1st September 2025
59AQI
59AQI
2nd September 2025
56AQI
56AQI
3rd September 2025
59AQI
59AQI
4th September 2025
69AQI
69AQI
5th September 2025
62AQI
62AQI
6th September 2025
65AQI
65AQI
7th September 2025
72AQI
72AQI
8th September 2025
60AQI
60AQI
9th September 2025
55AQI
55AQI
10th September 2025
54AQI
54AQI
11th September 2025
57AQI
57AQI
12th September 2025
59AQI
59AQI
13th September 2025
61AQI
61AQI
14th September 2025
65AQI
65AQI
15th September 2025
62AQI
62AQI
16th September 2025
70AQI
70AQI
17th September 2025
63AQI
63AQI
18th September 2025
46AQI
46AQI
19th September 2025
49AQI
49AQI
20th September 2025
50AQI
50AQI
21st September 2025
46AQI
46AQI
22nd September 2025
48AQI
48AQI
23rd September 2025
45AQI
45AQI
24th September 2025
39AQI
39AQI
25th September 2025
36AQI
36AQI
26th September 2025
36AQI
36AQI
27th September 2025
37AQI
37AQI
28th September 2025
49AQI
49AQI
29th September 2025
42AQI
42AQI
30th September 2025
58AQI
58AQI
1st October 2025
81AQI
81AQI
2nd October 2025
66AQI
66AQI
3rd October 2025
57AQI
57AQI
4th October 2025
62AQI
62AQI
5th October 2025
63AQI
63AQI
6th October 2025
93AQI
93AQI
7th October 2025
68AQI
68AQI
8th October 2025
48AQI
48AQI
9th October 2025
54AQI
54AQI
10th October 2025
54AQI
54AQI
11th October 2025
65AQI
65AQI
12th October 2025
89AQI
89AQI
13th October 2025
92AQI
92AQI
14th October 2025
60AQI
60AQI
15th October 2025
61AQI
61AQI
16th October 2025
68AQI
68AQI
17th October 2025
46AQI
46AQI
18th October 2025
49AQI
49AQI
19th October 2025
20th October 2025
21st October 2025
22nd October 2025
23rd October 2025
24th October 2025
25th October 2025
26th October 2025
27th October 2025
28th October 2025
29th October 2025
30th October 2025
31st October 2025
1st November 2025
2nd November 2025
3rd November 2025
4th November 2025
5th November 2025
6th November 2025
7th November 2025
8th November 2025
9th November 2025
10th November 2025
11th November 2025
12th November 2025
13th November 2025
14th November 2025
15th November 2025
16th November 2025
17th November 2025
18th November 2025
19th November 2025
20th November 2025
21st November 2025
22nd November 2025
23rd November 2025
24th November 2025
25th November 2025
26th November 2025
27th November 2025
28th November 2025
29th November 2025
30th November 2025
1st December 2025
2nd December 2025
3rd December 2025
4th December 2025
5th December 2025
6th December 2025
7th December 2025
8th December 2025
9th December 2025
10th December 2025
11th December 2025
12th December 2025
13th December 2025
14th December 2025
15th December 2025
16th December 2025
17th December 2025
18th December 2025
19th December 2025
20th December 2025
21st December 2025
22nd December 2025
23rd December 2025
24th December 2025
25th December 2025
26th December 2025
27th December 2025
28th December 2025
29th December 2025
30th December 2025
31st December 2025
111AQI
99AQI
90AQI
94AQI
76AQI
57AQI
52AQI
56AQI
54AQI
65AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202576AQI
12
15
4
16
11
1
20
11
20
9
1
30
1
8
22
14
17
3
28
12
18
3
15
40
198
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 (76) shows an average percentage change of -6.7% (improved AQI) compared to previous years: 2020 (80), 2021 (85), 2022 (85), 2023 (83), 2024 (74).
