Pcku, Nanjing, 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
Pcku, Nanjing, Jiangsu, China
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
27th Oct 2023
143AQILowest AQI recorded on
15th Oct 2021
15AQISame Day Analysis (6th October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 130 of Poor air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 7th Oct - 8th Oct 2025
Pcku, Nanjing, Jiangsu, China
AQI
Day
Night
.
5 AM7th Oct 2025
6 PM
4 AM8th Oct 2025
Day time
Avg. Highest Time
12AMNaNth undefined
AQI
Avg. Lowest Time
12AMNaNth undefined
AQI
Night time
Avg. Highest Time
7PM7th Oct
99AQI
Avg. Lowest Time
12AM8th Oct
51AQI
In the last 24 hours,
Pcku's AQI reached its highest point of 99 at 7 PM during the Night, while the lowest point, undefined, was recorded at 4 AM during the Night between 7th Oct and 8th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Pcku, Nanjing, Jiangsu, China
SepOct
08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th
Day
Night
8th Sep 2025705 AMAQI
8th Sep 2025696 AMAQI
8th Sep 2025717 AMAQI
8th Sep 2025788 AMAQI
8th Sep 2025889 AMAQI
8th Sep 20258810 AMAQI
8th Sep 20258611 AMAQI
8th Sep 20258212 PMAQI
8th Sep 2025781 PMAQI
8th Sep 2025622 PMAQI
8th Sep 2025613 PMAQI
8th Sep 2025544 PMAQI
8th Sep 2025605 PMAQI
8th Sep 2025396 PMAQI
8th Sep 2025537 PMAQI
8th Sep 2025588 PMAQI
8th Sep 2025599 PMAQI
8th Sep 20256010 PMAQI
8th Sep 20256011 PMAQI
9th Sep 20256212 AMAQI
9th Sep 2025681 AMAQI
9th Sep 2025692 AMAQI
9th Sep 2025703 AMAQI
9th Sep 2025704 AMAQI
27°C22/33°C
9th Sep 2025715 AMAQI
9th Sep 2025726 AMAQI
9th Sep 2025737 AMAQI
9th Sep 2025528 AMAQI
9th Sep 2025519 AMAQI
9th Sep 20254610 AMAQI
9th Sep 20254811 AMAQI
9th Sep 20254612 PMAQI
9th Sep 2025441 PMAQI
9th Sep 2025432 PMAQI
9th Sep 2025393 PMAQI
9th Sep 2025364 PMAQI
9th Sep 2025455 PMAQI
9th Sep 2025466 PMAQI
9th Sep 2025517 PMAQI
9th Sep 2025598 PMAQI
9th Sep 2025589 PMAQI
9th Sep 20255910 PMAQI
9th Sep 20255411 PMAQI
10th Sep 20256212 AMAQI
10th Sep 2025671 AMAQI
10th Sep 2025662 AMAQI
10th Sep 2025643 AMAQI
10th Sep 2025624 AMAQI
23°C22/25°C
10th Sep 2025635 AMAQI
10th Sep 2025646 AMAQI
10th Sep 2025647 AMAQI
10th Sep 2025548 AMAQI
10th Sep 2025589 AMAQI
10th Sep 20254810 AMAQI
10th Sep 20255311 AMAQI
10th Sep 20255312 PMAQI
10th Sep 2025541 PMAQI
10th Sep 2025542 PMAQI
10th Sep 2025563 PMAQI
10th Sep 2025524 PMAQI
10th Sep 2025555 PMAQI
10th Sep 2025556 PMAQI
10th Sep 2025577 PMAQI
10th Sep 2025588 PMAQI
10th Sep 2025609 PMAQI
10th Sep 20256010 PMAQI
10th Sep 20256011 PMAQI
11th Sep 20256112 AMAQI
11th Sep 2025621 AMAQI
11th Sep 2025622 AMAQI
11th Sep 2025613 AMAQI
11th Sep 2025604 AMAQI
25°C22/29°C
11th Sep 2025605 AMAQI
11th Sep 2025606 AMAQI
11th Sep 2025607 AMAQI
11th Sep 2025588 AMAQI
11th Sep 2025589 AMAQI
11th Sep 20255910 AMAQI
11th Sep 20255911 AMAQI
11th Sep 20255812 PMAQI
11th Sep 2025561 PMAQI
11th Sep 2025562 PMAQI
11th Sep 2025593 PMAQI
11th Sep 2025584 PMAQI
11th Sep 2025595 PMAQI
11th Sep 2025576 PMAQI
11th Sep 2025617 PMAQI
11th Sep 2025628 PMAQI
11th Sep 2025609 PMAQI
11th Sep 20256110 PMAQI
11th Sep 20256011 PMAQI
12th Sep 20255912 AMAQI
12th Sep 2025601 AMAQI
12th Sep 2025602 AMAQI
12th Sep 2025603 AMAQI
12th Sep 2025594 AMAQI
25°C22/29°C
12th Sep 2025595 AMAQI
12th Sep 2025596 AMAQI
12th Sep 2025597 AMAQI
12th Sep 2025648 AMAQI
12th Sep 2025619 AMAQI
12th Sep 20256610 AMAQI
12th Sep 20256211 AMAQI
12th Sep 20255912 PMAQI
12th Sep 2025561 PMAQI
12th Sep 2025482 PMAQI
12th Sep 2025463 PMAQI
12th Sep 2025424 PMAQI
12th Sep 2025445 PMAQI
12th Sep 2025506 PMAQI
12th Sep 2025537 PMAQI
12th Sep 2025578 PMAQI
12th Sep 2025569 PMAQI
12th Sep 20255610 PMAQI
12th Sep 20255611 PMAQI
13th Sep 20255912 AMAQI
13th Sep 2025581 AMAQI
13th Sep 2025602 AMAQI
13th Sep 2025583 AMAQI
13th Sep 2025594 AMAQI
26°C23/30°C
13th Sep 2025585 AMAQI
13th Sep 2025586 AMAQI
13th Sep 2025597 AMAQI
13th Sep 2025558 AMAQI
13th Sep 2025629 AMAQI
13th Sep 20255810 AMAQI
13th Sep 20255511 AMAQI
13th Sep 20255412 PMAQI
13th Sep 2025551 PMAQI
13th Sep 2025512 PMAQI
13th Sep 2025563 PMAQI
13th Sep 2025444 PMAQI
13th Sep 2025505 PMAQI
13th Sep 2025456 PMAQI
13th Sep 2025507 PMAQI
13th Sep 2025578 PMAQI
13th Sep 2025569 PMAQI
13th Sep 20255810 PMAQI
13th Sep 20255811 PMAQI
14th Sep 20255612 AMAQI
14th Sep 2025581 AMAQI
14th Sep 2025582 AMAQI
14th Sep 2025583 AMAQI
14th Sep 2025584 AMAQI
25°C22/29°C
14th Sep 2025585 AMAQI
14th Sep 2025586 AMAQI
14th Sep 2025587 AMAQI
14th Sep 2025668 AMAQI
14th Sep 2025699 AMAQI
14th Sep 20257410 AMAQI
14th Sep 20256211 AMAQI
14th Sep 20256412 PMAQI
14th Sep 2025611 PMAQI
14th Sep 2025622 PMAQI
14th Sep 2025663 PMAQI
14th Sep 2025654 PMAQI
14th Sep 2025655 PMAQI
14th Sep 2025576 PMAQI
14th Sep 2025527 PMAQI
14th Sep 2025528 PMAQI
14th Sep 2025569 PMAQI
14th Sep 20255410 PMAQI
14th Sep 20255611 PMAQI
15th Sep 20255512 AMAQI
15th Sep 2025581 AMAQI
15th Sep 2025592 AMAQI
15th Sep 2025583 AMAQI
15th Sep 2025584 AMAQI
26°C24/30°C
15th Sep 2025585 AMAQI
15th Sep 2025596 AMAQI
15th Sep 2025597 AMAQI
15th Sep 2025418 AMAQI
15th Sep 2025519 AMAQI
15th Sep 20255210 AMAQI
15th Sep 20255011 AMAQI
15th Sep 20255212 PMAQI
15th Sep 2025381 PMAQI
15th Sep 2025332 PMAQI
15th Sep 2025353 PMAQI
15th Sep 2025414 PMAQI
15th Sep 2025505 PMAQI
15th Sep 2025566 PMAQI
15th Sep 2025567 PMAQI
15th Sep 2025578 PMAQI
15th Sep 2025609 PMAQI
15th Sep 20256010 PMAQI
15th Sep 20256511 PMAQI
16th Sep 20255812 AMAQI
16th Sep 2025571 AMAQI
16th Sep 2025572 AMAQI
16th Sep 2025563 AMAQI
16th Sep 2025564 AMAQI
29°C24/34°C
16th Sep 2025565 AMAQI
16th Sep 2025566 AMAQI
16th Sep 2025567 AMAQI
16th Sep 2025728 AMAQI
16th Sep 2025779 AMAQI
16th Sep 20257110 AMAQI
16th Sep 20256811 AMAQI
16th Sep 20256012 PMAQI
16th Sep 2025621 PMAQI
16th Sep 2025592 PMAQI
16th Sep 2025583 PMAQI
16th Sep 2025584 PMAQI
16th Sep 2025625 PMAQI
16th Sep 2025676 PMAQI
16th Sep 2025647 PMAQI
16th Sep 2025628 PMAQI
16th Sep 2025649 PMAQI
16th Sep 20256110 PMAQI
16th Sep 20256611 PMAQI
17th Sep 20256612 AMAQI
17th Sep 2025561 AMAQI
17th Sep 2025562 AMAQI
17th Sep 2025583 AMAQI
17th Sep 2025594 AMAQI
30°C26/36°C
17th Sep 2025605 AMAQI
17th Sep 2025596 AMAQI
17th Sep 2025597 AMAQI
17th Sep 2025588 AMAQI
17th Sep 2025509 AMAQI
17th Sep 20253310 AMAQI
17th Sep 20252811 AMAQI
17th Sep 20253512 PMAQI
17th Sep 2025531 PMAQI
17th Sep 2025502 PMAQI
17th Sep 2025583 PMAQI
17th Sep 2025584 PMAQI
17th Sep 2025555 PMAQI
17th Sep 2025466 PMAQI
17th Sep 2025567 PMAQI
17th Sep 2025558 PMAQI
17th Sep 2025589 PMAQI
17th Sep 20255410 PMAQI
17th Sep 20254611 PMAQI
18th Sep 20254812 AMAQI
18th Sep 2025601 AMAQI
18th Sep 2025602 AMAQI
18th Sep 2025583 AMAQI
18th Sep 2025584 AMAQI
27°C22/32°C
18th Sep 2025575 AMAQI
18th Sep 2025586 AMAQI
18th Sep 2025587 AMAQI
18th Sep 2025308 AMAQI
18th Sep 2025229 AMAQI
18th Sep 20252810 AMAQI
18th Sep 20253211 AMAQI
18th Sep 20252212 PMAQI
18th Sep 2025281 PMAQI
18th Sep 2025212 PMAQI
18th Sep 2025223 PMAQI
18th Sep 2025224 PMAQI
18th Sep 2025325 PMAQI
18th Sep 2025456 PMAQI
18th Sep 2025477 PMAQI
18th Sep 2025498 PMAQI
18th Sep 2025479 PMAQI
18th Sep 20254710 PMAQI
18th Sep 20255011 PMAQI
19th Sep 20255012 AMAQI
19th Sep 2025581 AMAQI
19th Sep 2025582 AMAQI
19th Sep 2025563 AMAQI
19th Sep 2025544 AMAQI
23°C20/26°C
19th Sep 2025545 AMAQI
19th Sep 2025546 AMAQI
19th Sep 2025547 AMAQI
19th Sep 2025428 AMAQI
19th Sep 2025379 AMAQI
19th Sep 20254810 AMAQI
19th Sep 20255611 AMAQI
19th Sep 20254812 PMAQI
19th Sep 2025541 PMAQI
19th Sep 2025512 PMAQI
19th Sep 2025513 PMAQI
19th Sep 2025554 PMAQI
19th Sep 2025535 PMAQI
19th Sep 2025566 PMAQI
19th Sep 2025647 PMAQI
19th Sep 2025558 PMAQI
19th Sep 2025549 PMAQI
19th Sep 20254910 PMAQI
19th Sep 20254611 PMAQI
20th Sep 20254412 AMAQI
20th Sep 2025551 AMAQI
20th Sep 2025552 AMAQI
20th Sep 2025553 AMAQI
20th Sep 2025554 AMAQI
24°C20/29°C
20th Sep 2025555 AMAQI
20th Sep 2025546 AMAQI
20th Sep 2025547 AMAQI
20th Sep 2025308 AMAQI
20th Sep 2025249 AMAQI
20th Sep 20252610 AMAQI
20th Sep 20253611 AMAQI
20th Sep 20253712 PMAQI
20th Sep 2025331 PMAQI
20th Sep 2025402 PMAQI
20th Sep 2025363 PMAQI
20th Sep 2025424 PMAQI
20th Sep 2025465 PMAQI
20th Sep 2025466 PMAQI
20th Sep 2025477 PMAQI
20th Sep 2025528 PMAQI
20th Sep 2025599 PMAQI
20th Sep 20255410 PMAQI
20th Sep 20255611 PMAQI
21st Sep 20255912 AMAQI
21st Sep 2025551 AMAQI
21st Sep 2025542 AMAQI
21st Sep 2025543 AMAQI
21st Sep 2025524 AMAQI
21°C19/25°C
21st Sep 2025525 AMAQI
21st Sep 2025526 AMAQI
21st Sep 2025527 AMAQI
21st Sep 2025528 AMAQI
21st Sep 2025599 AMAQI
21st Sep 20255510 AMAQI
21st Sep 20256011 AMAQI
21st Sep 20255512 PMAQI
21st Sep 2025601 PMAQI
21st Sep 2025542 PMAQI
21st Sep 2025573 PMAQI
21st Sep 2025534 PMAQI
21st Sep 2025575 PMAQI
21st Sep 2025586 PMAQI
21st Sep 2025567 PMAQI
21st Sep 2025588 PMAQI
21st Sep 2025569 PMAQI
21st Sep 20255610 PMAQI
21st Sep 20255611 PMAQI
22nd Sep 20255512 AMAQI
22nd Sep 2025551 AMAQI
22nd Sep 2025552 AMAQI
22nd Sep 2025553 AMAQI
22nd Sep 2025554 AMAQI
21°C20/23°C
22nd Sep 2025565 AMAQI
22nd Sep 2025566 AMAQI
22nd Sep 2025567 AMAQI
22nd Sep 2025418 AMAQI
22nd Sep 2025429 AMAQI
22nd Sep 20254310 AMAQI
22nd Sep 20252511 AMAQI
22nd Sep 20253012 PMAQI
22nd Sep 2025331 PMAQI
22nd Sep 2025462 PMAQI
22nd Sep 2025543 PMAQI
22nd Sep 2025574 PMAQI
22nd Sep 2025625 PMAQI
22nd Sep 2025606 PMAQI
22nd Sep 2025627 PMAQI
22nd Sep 2025588 PMAQI
22nd Sep 2025589 PMAQI
22nd Sep 20256010 PMAQI
22nd Sep 20256511 PMAQI
23rd Sep 20256112 AMAQI
23rd Sep 2025571 AMAQI
23rd Sep 2025562 AMAQI
23rd Sep 2025563 AMAQI
23rd Sep 2025554 AMAQI
24°C20/29°C
23rd Sep 2025545 AMAQI
23rd Sep 2025546 AMAQI
23rd Sep 2025547 AMAQI
23rd Sep 2025708 AMAQI
23rd Sep 2025679 AMAQI
23rd Sep 20258110 AMAQI
23rd Sep 20256311 AMAQI
23rd Sep 20256412 PMAQI
23rd Sep 2025631 PMAQI
23rd Sep 2025562 PMAQI
23rd Sep 2025563 PMAQI
23rd Sep 2025524 PMAQI
23rd Sep 2025515 PMAQI
23rd Sep 2025546 PMAQI
23rd Sep 2025587 PMAQI
23rd Sep 2025688 PMAQI
23rd Sep 2025719 PMAQI
23rd Sep 20257010 PMAQI
23rd Sep 20256711 PMAQI
24th Sep 20256212 AMAQI
24th Sep 2025571 AMAQI
24th Sep 2025572 AMAQI
24th Sep 2025583 AMAQI
24th Sep 2025594 AMAQI
26°C23/30°C
24th Sep 2025605 AMAQI
24th Sep 2025606 AMAQI
24th Sep 2025607 AMAQI
24th Sep 2025408 AMAQI
24th Sep 2025409 AMAQI
24th Sep 20253210 AMAQI
24th Sep 20252411 AMAQI
24th Sep 20252212 PMAQI
24th Sep 2025241 PMAQI
24th Sep 2025242 PMAQI
24th Sep 2025243 PMAQI
24th Sep 2025254 PMAQI
24th Sep 2025225 PMAQI
24th Sep 2025236 PMAQI
24th Sep 2025337 PMAQI
24th Sep 2025488 PMAQI
24th Sep 2025499 PMAQI
24th Sep 20254810 PMAQI
24th Sep 20254811 PMAQI
25th Sep 20254812 AMAQI
25th Sep 2025591 AMAQI
25th Sep 2025582 AMAQI
25th Sep 2025573 AMAQI
25th Sep 2025564 AMAQI
22°C21/22°C
25th Sep 2025555 AMAQI
25th Sep 2025556 AMAQI
25th Sep 2025557 AMAQI
25th Sep 2025298 AMAQI
25th Sep 2025209 AMAQI
25th Sep 20252210 AMAQI
25th Sep 20252411 AMAQI
25th Sep 20252412 PMAQI
25th Sep 2025231 PMAQI
25th Sep 2025222 PMAQI
25th Sep 2025213 PMAQI
25th Sep 2025214 PMAQI
25th Sep 2025215 PMAQI
25th Sep 2025216 PMAQI
25th Sep 2025197 PMAQI
25th Sep 2025178 PMAQI
25th Sep 2025369 PMAQI
25th Sep 20254210 PMAQI
25th Sep 20255111 PMAQI
26th Sep 20254812 AMAQI
26th Sep 2025531 AMAQI
26th Sep 2025502 AMAQI
26th Sep 2025453 AMAQI
26th Sep 2025534 AMAQI
23°C21/24°C
26th Sep 2025525 AMAQI
26th Sep 2025396 AMAQI
26th Sep 2025257 AMAQI
26th Sep 2025228 AMAQI
26th Sep 2025349 AMAQI
26th Sep 20255310 AMAQI
26th Sep 20254311 AMAQI
26th Sep 20252112 PMAQI
26th Sep 2025111 PMAQI
26th Sep 2025152 PMAQI
26th Sep 2025313 PMAQI
26th Sep 2025424 PMAQI
26th Sep 2025365 PMAQI
26th Sep 2025216 PMAQI
26th Sep 2025197 PMAQI
26th Sep 2025388 PMAQI
26th Sep 2025619 PMAQI
26th Sep 20256810 PMAQI
26th Sep 20256811 PMAQI
27th Sep 20257712 AMAQI
27th Sep 2025811 AMAQI
27th Sep 2025652 AMAQI
27th Sep 2025583 AMAQI
27th Sep 2025564 AMAQI
25°C22/29°C
27th Sep 2025465 AMAQI
27th Sep 2025286 AMAQI
27th Sep 2025317 AMAQI
27th Sep 2025378 AMAQI
27th Sep 2025319 AMAQI
27th Sep 20254510 AMAQI
27th Sep 20256111 AMAQI
27th Sep 20257412 PMAQI
27th Sep 2025771 PMAQI
27th Sep 2025682 PMAQI
27th Sep 2025733 PMAQI
27th Sep 2025744 PMAQI
27th Sep 2025725 PMAQI
27th Sep 2025666 PMAQI
27th Sep 2025657 PMAQI
27th Sep 2025608 PMAQI
27th Sep 2025489 PMAQI
27th Sep 20254410 PMAQI
27th Sep 20254211 PMAQI
28th Sep 20253712 AMAQI
28th Sep 2025351 AMAQI
28th Sep 2025392 AMAQI
28th Sep 2025393 AMAQI
28th Sep 2025404 AMAQI
25°C21/30°C
28th Sep 2025415 AMAQI
28th Sep 2025326 AMAQI
28th Sep 2025307 AMAQI
28th Sep 2025328 AMAQI
28th Sep 2025309 AMAQI
28th Sep 20254010 AMAQI
28th Sep 20255611 AMAQI
28th Sep 20255412 PMAQI
28th Sep 2025521 PMAQI
28th Sep 2025442 PMAQI
28th Sep 2025553 PMAQI
28th Sep 2025494 PMAQI
28th Sep 2025445 PMAQI
28th Sep 2025516 PMAQI
28th Sep 2025427 PMAQI
28th Sep 2025478 PMAQI
28th Sep 2025529 PMAQI
28th Sep 20255010 PMAQI
28th Sep 20255011 PMAQI
29th Sep 20255112 AMAQI
29th Sep 2025541 AMAQI
29th Sep 2025552 AMAQI
29th Sep 2025553 AMAQI
29th Sep 2025584 AMAQI
26°C24/29°C
29th Sep 2025665 AMAQI
29th Sep 2025746 AMAQI
29th Sep 2025837 AMAQI
29th Sep 2025868 AMAQI
29th Sep 2025699 AMAQI
29th Sep 20257310 AMAQI
29th Sep 20256911 AMAQI
29th Sep 20257212 PMAQI
29th Sep 2025731 PMAQI
29th Sep 2025802 PMAQI
29th Sep 2025813 PMAQI
29th Sep 2025774 PMAQI
29th Sep 2025645 PMAQI
29th Sep 2025626 PMAQI
29th Sep 2025747 PMAQI
29th Sep 2025648 PMAQI
29th Sep 2025579 PMAQI
29th Sep 20255810 PMAQI
29th Sep 20256311 PMAQI
30th Sep 20255812 AMAQI
30th Sep 2025611 AMAQI
30th Sep 2025592 AMAQI
30th Sep 2025593 AMAQI
30th Sep 2025554 AMAQI
22°C20/23°C
30th Sep 2025545 AMAQI
30th Sep 2025616 AMAQI
30th Sep 2025657 AMAQI
30th Sep 2025588 AMAQI
30th Sep 2025599 AMAQI
30th Sep 20255910 AMAQI
30th Sep 20255411 AMAQI
30th Sep 20255912 PMAQI
30th Sep 2025641 PMAQI
30th Sep 2025562 PMAQI
30th Sep 2025533 PMAQI
30th Sep 2025474 PMAQI
30th Sep 2025225 PMAQI
30th Sep 2025376 PMAQI
30th Sep 2025377 PMAQI
30th Sep 2025428 PMAQI
30th Sep 2025399 PMAQI
30th Sep 20255010 PMAQI
30th Sep 20255311 PMAQI
1st Oct 20255112 AMAQI
1st Oct 2025501 AMAQI
1st Oct 2025462 AMAQI
1st Oct 2025483 AMAQI
1st Oct 2025524 AMAQI
22°C20/25°C
1st Oct 2025465 AMAQI
1st Oct 2025496 AMAQI
1st Oct 2025647 AMAQI
1st Oct 2025658 AMAQI
1st Oct 2025679 AMAQI
1st Oct 20256510 AMAQI
1st Oct 20255311 AMAQI
1st Oct 20256012 PMAQI
1st Oct 2025611 PMAQI
1st Oct 2025612 PMAQI
1st Oct 2025613 PMAQI
1st Oct 2025584 PMAQI
1st Oct 2025595 PMAQI
1st Oct 2025626 PMAQI
1st Oct 2025617 PMAQI
1st Oct 2025628 PMAQI
1st Oct 2025729 PMAQI
1st Oct 20257310 PMAQI
1st Oct 20257211 PMAQI
2nd Oct 20257412 AMAQI
2nd Oct 2025701 AMAQI
2nd Oct 2025652 AMAQI
2nd Oct 2025653 AMAQI
2nd Oct 2025664 AMAQI
23°C20/26°C
2nd Oct 2025625 AMAQI
2nd Oct 2025686 AMAQI
2nd Oct 2025637 AMAQI
2nd Oct 2025578 AMAQI
2nd Oct 2025619 AMAQI
2nd Oct 20255910 AMAQI
2nd Oct 20255711 AMAQI
2nd Oct 20256212 PMAQI
2nd Oct 2025621 PMAQI
2nd Oct 2025612 PMAQI
2nd Oct 2025673 PMAQI
2nd Oct 2025694 PMAQI
2nd Oct 2025675 PMAQI
2nd Oct 2025746 PMAQI
2nd Oct 2025797 PMAQI
2nd Oct 2025688 PMAQI
2nd Oct 2025749 PMAQI
2nd Oct 20256310 PMAQI
2nd Oct 20254911 PMAQI
3rd Oct 20253412 AMAQI
3rd Oct 2025331 AMAQI
3rd Oct 2025362 AMAQI
3rd Oct 2025363 AMAQI
3rd Oct 2025374 AMAQI
24°C22/27°C
3rd Oct 2025345 AMAQI
3rd Oct 2025326 AMAQI
3rd Oct 2025337 AMAQI
3rd Oct 2025358 AMAQI
3rd Oct 2025329 AMAQI
3rd Oct 20253410 AMAQI
3rd Oct 20253211 AMAQI
3rd Oct 20253212 PMAQI
3rd Oct 2025301 PMAQI
3rd Oct 2025282 PMAQI
3rd Oct 2025303 PMAQI
3rd Oct 2025324 PMAQI
3rd Oct 2025375 PMAQI
3rd Oct 2025316 PMAQI
3rd Oct 2025367 PMAQI
3rd Oct 2025478 PMAQI
3rd Oct 2025469 PMAQI
3rd Oct 20254310 PMAQI
3rd Oct 20255411 PMAQI
4th Oct 20253812 AMAQI
4th Oct 2025491 AMAQI
4th Oct 2025442 AMAQI
4th Oct 2025353 AMAQI
4th Oct 2025474 AMAQI
22°C20/25°C
4th Oct 2025515 AMAQI
4th Oct 2025476 AMAQI
4th Oct 2025507 AMAQI
4th Oct 2025538 AMAQI
4th Oct 2025579 AMAQI
4th Oct 20255610 AMAQI
4th Oct 20254411 AMAQI
4th Oct 20254412 PMAQI
4th Oct 2025431 PMAQI
4th Oct 2025562 PMAQI
4th Oct 2025633 PMAQI
4th Oct 2025644 PMAQI
4th Oct 2025655 PMAQI
4th Oct 2025656 PMAQI
4th Oct 2025577 PMAQI
4th Oct 2025618 PMAQI
4th Oct 2025699 PMAQI
4th Oct 20257610 PMAQI
4th Oct 20257811 PMAQI
5th Oct 20258312 AMAQI
5th Oct 2025871 AMAQI
5th Oct 2025902 AMAQI
5th Oct 2025753 AMAQI
5th Oct 2025804 AMAQI
24°C21/27°C
5th Oct 2025905 AMAQI
5th Oct 2025956 AMAQI
5th Oct 2025897 AMAQI
5th Oct 2025918 AMAQI
5th Oct 2025949 AMAQI
5th Oct 20259610 AMAQI
5th Oct 202510611 AMAQI
5th Oct 202512112 PMAQI
5th Oct 20251191 PMAQI
5th Oct 20251142 PMAQI
5th Oct 20251123 PMAQI
5th Oct 20251144 PMAQI
5th Oct 20251155 PMAQI
5th Oct 20251136 PMAQI
5th Oct 20251167 PMAQI
5th Oct 20251148 PMAQI
5th Oct 20251249 PMAQI
5th Oct 202512010 PMAQI
5th Oct 202512911 PMAQI
6th Oct 202512912 AMAQI
6th Oct 20251321 AMAQI
6th Oct 20251202 AMAQI
6th Oct 20251253 AMAQI
6th Oct 20251264 AMAQI
27°C23/32°C
6th Oct 20251175 AMAQI
6th Oct 20251036 AMAQI
6th Oct 20251117 AMAQI
6th Oct 20251108 AMAQI
6th Oct 20251179 AMAQI
6th Oct 202511210 AMAQI
6th Oct 202511511 AMAQI
6th Oct 202510712 PMAQI
6th Oct 20251121 PMAQI
6th Oct 2025862 PMAQI
6th Oct 2025813 PMAQI
6th Oct 2025894 PMAQI
6th Oct 2025845 PMAQI
6th Oct 2025816 PMAQI
6th Oct 2025927 PMAQI
6th Oct 20251008 PMAQI
6th Oct 20251009 PMAQI
6th Oct 20259410 PMAQI
6th Oct 202510811 PMAQI
7th Oct 202511712 AMAQI
7th Oct 20251211 AMAQI
29°C25/34°C
7th Oct 2025997 PMAQI
7th Oct 2025668 PMAQI
7th Oct 2025599 PMAQI
7th Oct 20256310 PMAQI
7th Oct 20256611 PMAQI
8th Oct 20255112 AMAQI
--°C/°C
5 AM
11 AM
6 PM
11 PM
4 AM
--°C/°C
Day time
Avg. Highest Time
5 AM - 7 AM
59AQI
3 hours / Day
90 hours / Month
Avg. Lowest Time
2 PM
52AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 7 AM (Avg. 59), while the lowest AQI was between 2 PM to 2 PM (Avg. 52).
Night time
Avg. Highest Time
1 AM
63AQI
1 hours / Day
30 hours / Month
Avg. Lowest Time
7 PM - 8 PM
58AQI
2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 1 AM to 1 AM (Avg. 63), while the lowest AQI was between 7 PM to 8 PM (Avg. 58).
2025 Days Vs Air Quality
Pcku, Nanjing, Jiangsu, China
2025
13%
36
66%
183
20%
55
1%
4
0.3%
1
Total number of days with different AQI categories in last 280 days in 2025 (85 days remaining)
Good
36 DaysModerate
183 DaysPoor
55 DaysUnhealthy
4 DaysSevere
0 DaysHazardous
1 DaysUnder WHO’s Safe Air Quality Limits: 13%
Health Risk Level:
Extreme
In 2025, 13% of 280 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
Pcku, Nanjing, 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
130AQI
130AQI
2nd January 2025
149AQI
149AQI
3rd January 2025
142AQI
142AQI
4th January 2025
152AQI
152AQI
5th January 2025
122AQI
122AQI
6th January 2025
122AQI
122AQI
7th January 2025
92AQI
92AQI
8th January 2025
117AQI
117AQI
9th January 2025
64AQI
64AQI
10th January 2025
87AQI
87AQI
11th January 2025
94AQI
94AQI
12th January 2025
83AQI
83AQI
13th January 2025
125AQI
125AQI
14th January 2025
136AQI
136AQI
15th January 2025
84AQI
84AQI
16th January 2025
100AQI
100AQI
17th January 2025
106AQI
106AQI
18th January 2025
128AQI
128AQI
19th January 2025
144AQI
144AQI
20th January 2025
137AQI
137AQI
21st January 2025
164AQI
164AQI
22nd January 2025
168AQI
168AQI
23rd January 2025
144AQI
144AQI
24th January 2025
109AQI
109AQI
25th January 2025
87AQI
87AQI
26th January 2025
121AQI
121AQI
27th January 2025
63AQI
63AQI
28th January 2025
92AQI
92AQI
29th January 2025
102AQI
102AQI
30th January 2025
104AQI
104AQI
31st January 2025
132AQI
132AQI
1st February 2025
84AQI
84AQI
2nd February 2025
130AQI
130AQI
3rd February 2025
118AQI
118AQI
4th February 2025
114AQI
114AQI
5th February 2025
95AQI
95AQI
6th February 2025
77AQI
77AQI
7th February 2025
70AQI
70AQI
8th February 2025
59AQI
59AQI
9th February 2025
71AQI
71AQI
10th February 2025
87AQI
87AQI
11th February 2025
95AQI
95AQI
12th February 2025
140AQI
140AQI
13th February 2025
116AQI
116AQI
14th February 2025
139AQI
139AQI
15th February 2025
113AQI
113AQI
16th February 2025
128AQI
128AQI
17th February 2025
88AQI
88AQI
18th February 2025
97AQI
97AQI
19th February 2025
105AQI
105AQI
20th February 2025
89AQI
89AQI
21st February 2025
91AQI
91AQI
22nd February 2025
118AQI
118AQI
23rd February 2025
122AQI
122AQI
24th February 2025
110AQI
110AQI
25th February 2025
140AQI
140AQI
26th February 2025
146AQI
146AQI
27th February 2025
142AQI
142AQI
28th February 2025
124AQI
124AQI
1st March 2025
107AQI
107AQI
2nd March 2025
95AQI
95AQI
3rd March 2025
72AQI
72AQI
4th March 2025
87AQI
87AQI
5th March 2025
103AQI
103AQI
6th March 2025
96AQI
96AQI
7th March 2025
114AQI
114AQI
8th March 2025
130AQI
130AQI
9th March 2025
114AQI
114AQI
10th March 2025
123AQI
123AQI
11th March 2025
135AQI
135AQI
12th March 2025
151AQI
151AQI
13th March 2025
106AQI
106AQI
14th March 2025
91AQI
91AQI
15th March 2025
78AQI
78AQI
16th March 2025
70AQI
70AQI
17th March 2025
66AQI
66AQI
18th March 2025
64AQI
64AQI
19th March 2025
79AQI
79AQI
20th March 2025
74AQI
74AQI
21st March 2025
69AQI
69AQI
22nd March 2025
75AQI
75AQI
23rd March 2025
88AQI
88AQI
24th March 2025
99AQI
99AQI
25th March 2025
89AQI
89AQI
26th March 2025
106AQI
106AQI
27th March 2025
120AQI
120AQI
28th March 2025
89AQI
89AQI
29th March 2025
108AQI
108AQI
30th March 2025
101AQI
101AQI
31st March 2025
77AQI
77AQI
1st April 2025
84AQI
84AQI
2nd April 2025
92AQI
92AQI
3rd April 2025
73AQI
73AQI
4th April 2025
106AQI
106AQI
5th April 2025
92AQI
92AQI
6th April 2025
93AQI
93AQI
7th April 2025
91AQI
91AQI
8th April 2025
97AQI
97AQI
9th April 2025
98AQI
98AQI
10th April 2025
114AQI
114AQI
11th April 2025
109AQI
109AQI
12th April 2025
316AQI
316AQI
13th April 2025
101AQI
101AQI
14th April 2025
96AQI
96AQI
15th April 2025
73AQI
73AQI
16th April 2025
75AQI
75AQI
17th April 2025
88AQI
88AQI
18th April 2025
93AQI
93AQI
19th April 2025
125AQI
125AQI
20th April 2025
84AQI
84AQI
21st April 2025
106AQI
106AQI
22nd April 2025
95AQI
95AQI
23rd April 2025
93AQI
93AQI
24th April 2025
94AQI
94AQI
25th April 2025
75AQI
75AQI
26th April 2025
67AQI
67AQI
27th April 2025
70AQI
70AQI
28th April 2025
79AQI
79AQI
29th April 2025
87AQI
87AQI
30th April 2025
82AQI
82AQI
1st May 2025
77AQI
77AQI
2nd May 2025
77AQI
77AQI
3rd May 2025
70AQI
70AQI
4th May 2025
67AQI
67AQI
5th May 2025
72AQI
72AQI
6th May 2025
98AQI
98AQI
7th May 2025
96AQI
96AQI
8th May 2025
75AQI
75AQI
9th May 2025
55AQI
55AQI
10th May 2025
59AQI
59AQI
11th May 2025
68AQI
68AQI
12th May 2025
72AQI
72AQI
13th May 2025
77AQI
77AQI
14th May 2025
96AQI
96AQI
15th May 2025
116AQI
116AQI
16th May 2025
75AQI
75AQI
17th May 2025
89AQI
89AQI
18th May 2025
85AQI
85AQI
19th May 2025
96AQI
96AQI
20th May 2025
80AQI
80AQI
21st May 2025
69AQI
69AQI
22nd May 2025
80AQI
80AQI
23rd May 2025
86AQI
86AQI
24th May 2025
97AQI
97AQI
25th May 2025
90AQI
90AQI
26th May 2025
97AQI
97AQI
27th May 2025
85AQI
85AQI
28th May 2025
84AQI
84AQI
29th May 2025
84AQI
84AQI
30th May 2025
84AQI
84AQI
31st May 2025
103AQI
103AQI
1st June 2025
53AQI
53AQI
2nd June 2025
52AQI
52AQI
3rd June 2025
70AQI
70AQI
4th June 2025
87AQI
87AQI
5th June 2025
72AQI
72AQI
6th June 2025
74AQI
74AQI
7th June 2025
50AQI
50AQI
8th June 2025
53AQI
53AQI
9th June 2025
58AQI
58AQI
10th June 2025
62AQI
62AQI
11th June 2025
72AQI
72AQI
12th June 2025
64AQI
64AQI
13th June 2025
58AQI
58AQI
14th June 2025
63AQI
63AQI
15th June 2025
44AQI
44AQI
16th June 2025
53AQI
53AQI
17th June 2025
58AQI
58AQI
18th June 2025
52AQI
52AQI
19th June 2025
41AQI
41AQI
20th June 2025
45AQI
45AQI
21st June 2025
37AQI
37AQI
22nd June 2025
32AQI
32AQI
23rd June 2025
49AQI
49AQI
24th June 2025
47AQI
47AQI
25th June 2025
56AQI
56AQI
26th June 2025
61AQI
61AQI
27th June 2025
53AQI
53AQI
28th June 2025
45AQI
45AQI
29th June 2025
43AQI
43AQI
30th June 2025
49AQI
49AQI
1st July 2025
53AQI
53AQI
2nd July 2025
57AQI
57AQI
3rd July 2025
60AQI
60AQI
4th July 2025
62AQI
62AQI
5th July 2025
66AQI
66AQI
6th July 2025
70AQI
70AQI
7th July 2025
62AQI
62AQI
8th July 2025
51AQI
51AQI
9th July 2025
50AQI
50AQI
10th July 2025
74AQI
74AQI
11th July 2025
62AQI
62AQI
12th July 2025
58AQI
58AQI
13th July 2025
62AQI
62AQI
14th July 2025
59AQI
59AQI
15th July 2025
65AQI
65AQI
16th July 2025
65AQI
65AQI
17th July 2025
57AQI
57AQI
18th July 2025
59AQI
59AQI
19th July 2025
60AQI
60AQI
20th July 2025
48AQI
48AQI
21st July 2025
43AQI
43AQI
22nd July 2025
43AQI
43AQI
23rd July 2025
41AQI
41AQI
24th July 2025
43AQI
43AQI
25th July 2025
53AQI
53AQI
26th July 2025
40AQI
40AQI
27th July 2025
43AQI
43AQI
28th July 2025
40AQI
40AQI
29th July 2025
51AQI
51AQI
30th July 2025
39AQI
39AQI
31st July 2025
42AQI
42AQI
1st August 2025
51AQI
51AQI
2nd August 2025
49AQI
49AQI
3rd August 2025
52AQI
52AQI
4th August 2025
56AQI
56AQI
5th August 2025
64AQI
64AQI
6th August 2025
58AQI
58AQI
7th August 2025
50AQI
50AQI
8th August 2025
47AQI
47AQI
9th August 2025
52AQI
52AQI
10th August 2025
39AQI
39AQI
11th August 2025
40AQI
40AQI
12th August 2025
54AQI
54AQI
13th August 2025
57AQI
57AQI
14th August 2025
49AQI
49AQI
15th August 2025
48AQI
48AQI
16th August 2025
51AQI
51AQI
17th August 2025
55AQI
55AQI
18th August 2025
57AQI
57AQI
19th August 2025
58AQI
58AQI
20th August 2025
56AQI
56AQI
21st August 2025
57AQI
57AQI
22nd August 2025
54AQI
54AQI
23rd August 2025
51AQI
51AQI
24th August 2025
54AQI
54AQI
25th August 2025
57AQI
57AQI
26th August 2025
53AQI
53AQI
27th August 2025
60AQI
60AQI
28th August 2025
60AQI
60AQI
29th August 2025
61AQI
61AQI
30th August 2025
59AQI
59AQI
31st August 2025
53AQI
53AQI
1st September 2025
58AQI
58AQI
2nd September 2025
58AQI
58AQI
3rd September 2025
60AQI
60AQI
4th September 2025
66AQI
66AQI
5th September 2025
66AQI
66AQI
6th September 2025
73AQI
73AQI
7th September 2025
74AQI
74AQI
8th September 2025
67AQI
67AQI
9th September 2025
57AQI
57AQI
10th September 2025
59AQI
59AQI
11th September 2025
60AQI
60AQI
12th September 2025
56AQI
56AQI
13th September 2025
56AQI
56AQI
14th September 2025
59AQI
59AQI
15th September 2025
54AQI
54AQI
16th September 2025
61AQI
61AQI
17th September 2025
53AQI
53AQI
18th September 2025
44AQI
44AQI
19th September 2025
53AQI
53AQI
20th September 2025
47AQI
47AQI
21st September 2025
56AQI
56AQI
22nd September 2025
53AQI
53AQI
23rd September 2025
60AQI
60AQI
24th September 2025
43AQI
43AQI
25th September 2025
36AQI
36AQI
26th September 2025
41AQI
41AQI
27th September 2025
60AQI
60AQI
28th September 2025
43AQI
43AQI
29th September 2025
64AQI
64AQI
30th September 2025
53AQI
53AQI
1st October 2025
58AQI
58AQI
2nd October 2025
66AQI
66AQI
3rd October 2025
37AQI
37AQI
4th October 2025
53AQI
53AQI
5th October 2025
97AQI
97AQI
6th October 2025
130AQI
130AQI
7th October 2025
8th October 2025
9th October 2025
10th October 2025
11th October 2025
12th October 2025
13th October 2025
14th October 2025
15th October 2025
16th October 2025
17th October 2025
18th October 2025
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
116AQI
107AQI
96AQI
98AQI
83AQI
55AQI
54AQI
54AQI
56AQI
74AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202580AQI
10
18
3
12
16
18
12
1
23
6
1
29
2
11
19
11
20
7
24
6
24
1
4
1
36
183
55
4
1
Highest AQI recorded in
January116AQI
Lowest AQI recorded in
August54AQI
202479AQI
9
11
11
6
13
6
4
1
16
13
1
4
24
2
1
29
1
8
22
27
4
10
21
9
20
5
21
5
4
21
5
8
21
2
75
208
64
18
Highest AQI recorded in
January129AQI
Lowest AQI recorded in
July38AQI
202385AQI
1
13
12
5
2
11
14
1
1
12
17
1
23
6
1
2
24
4
1
9
21
18
13
7
24
10
19
1
9
15
7
2
11
12
1
1
13
9
8
62
199
82
16
2
Highest AQI recorded in
December119AQI
Lowest AQI recorded in
July48AQI
202280AQI
1
9
11
10
12
9
4
15
11
1
5
24
1
2
24
5
9
21
13
10
1
12
15
1
7
22
2
3
19
8
1
15
8
7
57
187
56
18
Highest AQI recorded in
January121AQI
Lowest AQI recorded in
July49AQI
202176AQI
13
15
3
4
16
7
1
1
20
7
2
1
5
21
4
4
13
3
7
16
24
7
7
14
5
22
1
10
15
4
6
17
7
4
12
10
5
77
186
58
11
1
Highest AQI recorded in
January111AQI
Lowest AQI recorded in
July39AQI
202071AQI
4
9
1
17
3
15
3
15
15
13
15
3
14
17
4
26
8
21
2
2
25
3
1
8
13
9
62
168
27
9
Highest AQI recorded in
December123AQI
Lowest AQI recorded in
June50AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2023(Avg.)
85AQILeast Polluted Year Recorded
2020(Avg.)
71AQIPcku's annual 2025 AQI (80) shows an average percentage change of 2.2% (worsened AQI) compared to previous years: 2020 (71), 2021 (76), 2022 (80), 2023 (85), 2024 (79).
