Institute Of Posts And Telecommunications, Changchun, Jilin, 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
Institute Of Posts And Telecommunications, Changchun, Jilin, China
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
8th Aug 2021
131AQILowest AQI recorded on
22nd Aug 2024
16AQISame Day Analysis (2nd August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 53 of Moderate air quality, showing improvement over 2023 and 2022 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 3rd Aug - 4th Aug 2025
Institute Of Posts And Telecommunications, Changchun, Jilin, China
AQI
Day
Night
.
6 AM3rd Aug 2025
9 PM
5 AM4th Aug 2025
Day time
Avg. Highest Time
12AMNaNth undefined
AQI
Avg. Lowest Time
12AMNaNth undefined
AQI
Night time
Avg. Highest Time
6AM3rd Aug
54AQI
Avg. Lowest Time
1PM3rd Aug
26AQI
In the last 24 hours,
Institute Of Posts And Telecommunications's AQI reached its highest point of 54 at 6 AM during the Night, while the lowest point, 26, was recorded at 1 PM during the Night between 3rd Aug and 4th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Institute Of Posts And Telecommunications, Changchun, Jilin, China
JulAug
05th - 06th06th - 07th07th - 08th08th - 09th09th - 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
Day
Night
5th Jul 2025546 AMAQI
5th Jul 2025547 AMAQI
5th Jul 2025358 AMAQI
5th Jul 2025349 AMAQI
5th Jul 20254310 AMAQI
5th Jul 20254911 AMAQI
5th Jul 20255212 PMAQI
5th Jul 2025511 PMAQI
5th Jul 2025562 PMAQI
5th Jul 2025613 PMAQI
5th Jul 2025734 PMAQI
5th Jul 2025745 PMAQI
5th Jul 2025646 PMAQI
5th Jul 2025537 PMAQI
5th Jul 2025538 PMAQI
5th Jul 2025529 PMAQI
5th Jul 20255310 PMAQI
5th Jul 20255311 PMAQI
6th Jul 20255212 AMAQI
6th Jul 2025561 AMAQI
6th Jul 2025562 AMAQI
6th Jul 2025553 AMAQI
6th Jul 2025544 AMAQI
6th Jul 2025555 AMAQI
25°C19/29°C
6th Jul 2025546 AMAQI
6th Jul 2025547 AMAQI
6th Jul 2025388 AMAQI
6th Jul 2025309 AMAQI
6th Jul 20252210 AMAQI
6th Jul 20252211 AMAQI
6th Jul 20253212 PMAQI
6th Jul 2025341 PMAQI
6th Jul 2025362 PMAQI
6th Jul 2025363 PMAQI
6th Jul 2025384 PMAQI
6th Jul 2025415 PMAQI
6th Jul 2025446 PMAQI
6th Jul 2025487 PMAQI
6th Jul 2025538 PMAQI
6th Jul 2025569 PMAQI
6th Jul 20255810 PMAQI
6th Jul 20255611 PMAQI
7th Jul 20255512 AMAQI
7th Jul 2025551 AMAQI
7th Jul 2025552 AMAQI
7th Jul 2025543 AMAQI
7th Jul 2025534 AMAQI
7th Jul 2025525 AMAQI
24°C18/30°C
7th Jul 2025526 AMAQI
7th Jul 2025537 AMAQI
7th Jul 2025328 AMAQI
7th Jul 2025269 AMAQI
7th Jul 20253010 AMAQI
7th Jul 20253811 AMAQI
7th Jul 20254312 PMAQI
7th Jul 2025441 PMAQI
7th Jul 2025492 PMAQI
7th Jul 2025523 PMAQI
7th Jul 2025534 PMAQI
7th Jul 2025515 PMAQI
7th Jul 2025496 PMAQI
7th Jul 2025447 PMAQI
7th Jul 2025468 PMAQI
7th Jul 2025489 PMAQI
7th Jul 20255010 PMAQI
7th Jul 20254911 PMAQI
8th Jul 20255312 AMAQI
8th Jul 2025541 AMAQI
8th Jul 2025542 AMAQI
8th Jul 2025543 AMAQI
8th Jul 2025534 AMAQI
8th Jul 2025535 AMAQI
25°C19/32°C
8th Jul 2025536 AMAQI
8th Jul 2025537 AMAQI
8th Jul 2025538 AMAQI
8th Jul 2025479 AMAQI
8th Jul 20255110 AMAQI
8th Jul 20254611 AMAQI
8th Jul 20254912 PMAQI
8th Jul 2025561 PMAQI
8th Jul 2025562 PMAQI
8th Jul 2025583 PMAQI
8th Jul 2025574 PMAQI
8th Jul 2025565 PMAQI
8th Jul 2025516 PMAQI
8th Jul 2025527 PMAQI
8th Jul 2025558 PMAQI
8th Jul 2025559 PMAQI
8th Jul 20255810 PMAQI
8th Jul 20255811 PMAQI
9th Jul 20255912 AMAQI
9th Jul 2025541 AMAQI
9th Jul 2025542 AMAQI
9th Jul 2025543 AMAQI
9th Jul 2025544 AMAQI
9th Jul 2025545 AMAQI
27°C21/33°C
9th Jul 2025546 AMAQI
9th Jul 2025547 AMAQI
9th Jul 2025748 AMAQI
9th Jul 2025739 AMAQI
9th Jul 20256610 AMAQI
9th Jul 20255811 AMAQI
9th Jul 20255412 PMAQI
9th Jul 2025551 PMAQI
9th Jul 2025572 PMAQI
9th Jul 2025583 PMAQI
9th Jul 2025604 PMAQI
9th Jul 2025635 PMAQI
9th Jul 2025676 PMAQI
9th Jul 2025617 PMAQI
9th Jul 2025608 PMAQI
9th Jul 2025629 PMAQI
9th Jul 20256410 PMAQI
9th Jul 20256411 PMAQI
10th Jul 20256212 AMAQI
10th Jul 2025561 AMAQI
10th Jul 2025562 AMAQI
10th Jul 2025563 AMAQI
10th Jul 2025574 AMAQI
10th Jul 2025565 AMAQI
29°C23/34°C
10th Jul 2025576 AMAQI
10th Jul 2025567 AMAQI
10th Jul 2025678 AMAQI
10th Jul 2025669 AMAQI
10th Jul 20257210 AMAQI
10th Jul 20257111 AMAQI
10th Jul 20257012 PMAQI
10th Jul 2025641 PMAQI
10th Jul 2025582 PMAQI
10th Jul 2025583 PMAQI
10th Jul 2025594 PMAQI
10th Jul 2025585 PMAQI
10th Jul 2025596 PMAQI
10th Jul 2025587 PMAQI
10th Jul 2025608 PMAQI
10th Jul 2025619 PMAQI
10th Jul 20256110 PMAQI
10th Jul 20256111 PMAQI
11th Jul 20256012 AMAQI
11th Jul 2025571 AMAQI
11th Jul 2025582 AMAQI
11th Jul 2025583 AMAQI
11th Jul 2025604 AMAQI
11th Jul 2025595 AMAQI
29°C24/34°C
11th Jul 2025596 AMAQI
11th Jul 2025597 AMAQI
11th Jul 2025668 AMAQI
11th Jul 2025719 AMAQI
11th Jul 20257410 AMAQI
11th Jul 20257411 AMAQI
11th Jul 20256912 PMAQI
11th Jul 2025631 PMAQI
11th Jul 2025622 PMAQI
11th Jul 2025603 PMAQI
11th Jul 2025604 PMAQI
11th Jul 2025585 PMAQI
11th Jul 2025596 PMAQI
11th Jul 2025617 PMAQI
11th Jul 2025638 PMAQI
11th Jul 2025639 PMAQI
11th Jul 20256410 PMAQI
11th Jul 20256411 PMAQI
12th Jul 20256212 AMAQI
12th Jul 2025601 AMAQI
12th Jul 2025592 AMAQI
12th Jul 2025603 AMAQI
12th Jul 2025624 AMAQI
12th Jul 2025625 AMAQI
28°C25/33°C
12th Jul 2025616 AMAQI
12th Jul 2025617 AMAQI
12th Jul 2025628 AMAQI
12th Jul 2025599 AMAQI
12th Jul 20255910 AMAQI
12th Jul 20255911 AMAQI
12th Jul 20256112 PMAQI
12th Jul 2025641 PMAQI
12th Jul 2025622 PMAQI
12th Jul 2025623 PMAQI
12th Jul 2025624 PMAQI
12th Jul 2025625 PMAQI
12th Jul 2025646 PMAQI
12th Jul 2025767 PMAQI
12th Jul 2025728 PMAQI
12th Jul 2025729 PMAQI
12th Jul 20256710 PMAQI
12th Jul 20256211 PMAQI
13th Jul 20256112 AMAQI
13th Jul 2025611 AMAQI
13th Jul 2025612 AMAQI
13th Jul 2025613 AMAQI
13th Jul 2025624 AMAQI
13th Jul 2025615 AMAQI
28°C24/33°C
13th Jul 2025616 AMAQI
13th Jul 2025627 AMAQI
13th Jul 2025538 AMAQI
13th Jul 2025419 AMAQI
13th Jul 20253610 AMAQI
13th Jul 20253311 AMAQI
13th Jul 20254012 PMAQI
13th Jul 2025441 PMAQI
13th Jul 2025402 PMAQI
13th Jul 2025433 PMAQI
13th Jul 2025434 PMAQI
13th Jul 2025445 PMAQI
13th Jul 2025486 PMAQI
13th Jul 2025547 PMAQI
13th Jul 2025588 PMAQI
13th Jul 2025579 PMAQI
13th Jul 20255610 PMAQI
13th Jul 20255511 PMAQI
14th Jul 20255612 AMAQI
14th Jul 2025611 AMAQI
14th Jul 2025612 AMAQI
14th Jul 2025593 AMAQI
14th Jul 2025594 AMAQI
14th Jul 2025585 AMAQI
24°C20/29°C
14th Jul 2025586 AMAQI
14th Jul 2025587 AMAQI
14th Jul 2025348 AMAQI
14th Jul 2025249 AMAQI
14th Jul 20252410 AMAQI
14th Jul 20252811 AMAQI
14th Jul 20253612 PMAQI
14th Jul 2025361 PMAQI
14th Jul 2025362 PMAQI
14th Jul 2025423 PMAQI
14th Jul 2025424 PMAQI
14th Jul 2025425 PMAQI
14th Jul 2025366 PMAQI
14th Jul 2025427 PMAQI
14th Jul 2025538 PMAQI
14th Jul 2025549 PMAQI
14th Jul 20255410 PMAQI
14th Jul 20255311 PMAQI
15th Jul 20255412 AMAQI
15th Jul 2025581 AMAQI
15th Jul 2025592 AMAQI
15th Jul 2025583 AMAQI
15th Jul 2025574 AMAQI
15th Jul 2025575 AMAQI
23°C18/29°C
15th Jul 2025576 AMAQI
15th Jul 2025567 AMAQI
15th Jul 2025288 AMAQI
15th Jul 2025229 AMAQI
15th Jul 20252610 AMAQI
15th Jul 20253211 AMAQI
15th Jul 20255012 PMAQI
15th Jul 2025521 PMAQI
15th Jul 2025532 PMAQI
15th Jul 2025483 PMAQI
15th Jul 2025434 PMAQI
15th Jul 2025425 PMAQI
15th Jul 2025376 PMAQI
15th Jul 2025437 PMAQI
15th Jul 2025528 PMAQI
15th Jul 2025539 PMAQI
15th Jul 20255310 PMAQI
15th Jul 20255311 PMAQI
16th Jul 20255512 AMAQI
16th Jul 2025571 AMAQI
16th Jul 2025572 AMAQI
16th Jul 2025563 AMAQI
16th Jul 2025564 AMAQI
16th Jul 2025565 AMAQI
23°C18/30°C
16th Jul 2025556 AMAQI
16th Jul 2025557 AMAQI
16th Jul 2025298 AMAQI
16th Jul 2025209 AMAQI
16th Jul 20252010 AMAQI
16th Jul 20252011 AMAQI
16th Jul 20253312 PMAQI
16th Jul 2025381 PMAQI
16th Jul 2025412 PMAQI
16th Jul 2025433 PMAQI
16th Jul 2025364 PMAQI
16th Jul 2025405 PMAQI
16th Jul 2025416 PMAQI
16th Jul 2025497 PMAQI
16th Jul 2025558 PMAQI
16th Jul 2025559 PMAQI
16th Jul 20255810 PMAQI
16th Jul 20256011 PMAQI
17th Jul 20256112 AMAQI
17th Jul 2025561 AMAQI
17th Jul 2025562 AMAQI
17th Jul 2025553 AMAQI
17th Jul 2025544 AMAQI
17th Jul 2025545 AMAQI
23°C19/27°C
17th Jul 2025536 AMAQI
17th Jul 2025547 AMAQI
17th Jul 2025528 AMAQI
17th Jul 2025369 AMAQI
17th Jul 20252610 AMAQI
17th Jul 20252911 AMAQI
17th Jul 20253812 PMAQI
17th Jul 2025381 PMAQI
17th Jul 2025322 PMAQI
17th Jul 2025253 PMAQI
17th Jul 2025264 PMAQI
17th Jul 2025315 PMAQI
17th Jul 2025396 PMAQI
17th Jul 2025507 PMAQI
17th Jul 2025538 PMAQI
17th Jul 2025549 PMAQI
17th Jul 20255210 PMAQI
17th Jul 20255311 PMAQI
18th Jul 20255512 AMAQI
18th Jul 2025561 AMAQI
18th Jul 2025562 AMAQI
18th Jul 2025543 AMAQI
18th Jul 2025534 AMAQI
18th Jul 2025535 AMAQI
24°C20/28°C
18th Jul 2025546 AMAQI
18th Jul 2025537 AMAQI
18th Jul 2025538 AMAQI
18th Jul 2025489 AMAQI
18th Jul 20254010 AMAQI
18th Jul 20253911 AMAQI
18th Jul 20254212 PMAQI
18th Jul 2025401 PMAQI
18th Jul 2025382 PMAQI
18th Jul 2025323 PMAQI
18th Jul 2025324 PMAQI
18th Jul 2025285 PMAQI
18th Jul 2025246 PMAQI
18th Jul 2025437 PMAQI
18th Jul 2025528 PMAQI
18th Jul 2025539 PMAQI
18th Jul 20255410 PMAQI
18th Jul 20255411 PMAQI
19th Jul 20255512 AMAQI
19th Jul 2025561 AMAQI
19th Jul 2025552 AMAQI
19th Jul 2025543 AMAQI
19th Jul 2025534 AMAQI
19th Jul 2025545 AMAQI
24°C20/29°C
19th Jul 2025546 AMAQI
19th Jul 2025547 AMAQI
19th Jul 2025488 AMAQI
19th Jul 2025439 AMAQI
19th Jul 20254010 AMAQI
19th Jul 20253411 AMAQI
19th Jul 20253412 PMAQI
19th Jul 2025401 PMAQI
19th Jul 2025372 PMAQI
19th Jul 2025383 PMAQI
19th Jul 2025384 PMAQI
19th Jul 2025405 PMAQI
19th Jul 2025436 PMAQI
19th Jul 2025547 PMAQI
19th Jul 2025558 PMAQI
19th Jul 2025579 PMAQI
19th Jul 20255610 PMAQI
19th Jul 20255611 PMAQI
20th Jul 20255712 AMAQI
20th Jul 2025551 AMAQI
20th Jul 2025552 AMAQI
20th Jul 2025543 AMAQI
20th Jul 2025534 AMAQI
20th Jul 2025545 AMAQI
25°C20/31°C
20th Jul 2025536 AMAQI
20th Jul 2025537 AMAQI
20th Jul 2025448 AMAQI
20th Jul 2025349 AMAQI
20th Jul 20253310 AMAQI
20th Jul 20253211 AMAQI
20th Jul 20254412 PMAQI
20th Jul 2025471 PMAQI
20th Jul 2025402 PMAQI
20th Jul 2025363 PMAQI
20th Jul 2025324 PMAQI
20th Jul 2025355 PMAQI
20th Jul 2025366 PMAQI
20th Jul 2025427 PMAQI
20th Jul 2025528 PMAQI
20th Jul 2025529 PMAQI
20th Jul 20254910 PMAQI
20th Jul 20254611 PMAQI
21st Jul 20254812 AMAQI
21st Jul 2025541 AMAQI
21st Jul 2025552 AMAQI
21st Jul 2025543 AMAQI
21st Jul 2025534 AMAQI
21st Jul 2025535 AMAQI
22°C20/25°C
21st Jul 2025536 AMAQI
21st Jul 2025547 AMAQI
21st Jul 2025448 AMAQI
21st Jul 2025469 AMAQI
21st Jul 20254210 AMAQI
21st Jul 20253811 AMAQI
21st Jul 20253712 PMAQI
21st Jul 2025361 PMAQI
21st Jul 2025382 PMAQI
21st Jul 2025343 PMAQI
21st Jul 2025314 PMAQI
21st Jul 2025385 PMAQI
21st Jul 2025436 PMAQI
21st Jul 2025487 PMAQI
21st Jul 2025528 PMAQI
21st Jul 2025529 PMAQI
21st Jul 20255210 PMAQI
21st Jul 20255311 PMAQI
22nd Jul 20255412 AMAQI
22nd Jul 2025541 AMAQI
22nd Jul 2025542 AMAQI
22nd Jul 2025533 AMAQI
22nd Jul 2025524 AMAQI
22nd Jul 2025525 AMAQI
25°C20/32°C
22nd Jul 2025526 AMAQI
22nd Jul 2025537 AMAQI
22nd Jul 2025538 AMAQI
22nd Jul 2025439 AMAQI
22nd Jul 20254110 AMAQI
22nd Jul 20254211 AMAQI
22nd Jul 20254512 PMAQI
22nd Jul 2025501 PMAQI
22nd Jul 2025532 PMAQI
22nd Jul 2025533 PMAQI
22nd Jul 2025554 PMAQI
22nd Jul 2025585 PMAQI
22nd Jul 2025546 PMAQI
22nd Jul 2025537 PMAQI
22nd Jul 2025538 PMAQI
22nd Jul 2025549 PMAQI
22nd Jul 20255610 PMAQI
22nd Jul 20255611 PMAQI
23rd Jul 20255512 AMAQI
23rd Jul 2025541 AMAQI
23rd Jul 2025532 AMAQI
23rd Jul 2025533 AMAQI
23rd Jul 2025534 AMAQI
23rd Jul 2025535 AMAQI
26°C21/32°C
23rd Jul 2025536 AMAQI
23rd Jul 2025537 AMAQI
23rd Jul 2025468 AMAQI
23rd Jul 2025439 AMAQI
23rd Jul 20254410 AMAQI
23rd Jul 20253911 AMAQI
23rd Jul 20253712 PMAQI
23rd Jul 2025341 PMAQI
23rd Jul 2025352 PMAQI
23rd Jul 2025363 PMAQI
23rd Jul 2025354 PMAQI
23rd Jul 2025365 PMAQI
23rd Jul 2025376 PMAQI
23rd Jul 2025467 PMAQI
23rd Jul 2025528 PMAQI
23rd Jul 2025529 PMAQI
23rd Jul 20255110 PMAQI
23rd Jul 20255211 PMAQI
24th Jul 20255212 AMAQI
24th Jul 2025511 AMAQI
24th Jul 2025532 AMAQI
24th Jul 2025533 AMAQI
24th Jul 2025524 AMAQI
24th Jul 2025525 AMAQI
26°C22/31°C
24th Jul 2025526 AMAQI
24th Jul 2025527 AMAQI
24th Jul 2025318 AMAQI
24th Jul 2025189 AMAQI
24th Jul 20251810 AMAQI
24th Jul 20251811 AMAQI
24th Jul 20252412 PMAQI
24th Jul 2025301 PMAQI
24th Jul 2025312 PMAQI
24th Jul 2025323 PMAQI
24th Jul 2025324 PMAQI
24th Jul 2025335 PMAQI
24th Jul 2025356 PMAQI
24th Jul 2025427 PMAQI
24th Jul 2025488 PMAQI
24th Jul 2025499 PMAQI
24th Jul 20254910 PMAQI
24th Jul 20254911 PMAQI
25th Jul 20254812 AMAQI
25th Jul 2025521 AMAQI
25th Jul 2025522 AMAQI
25th Jul 2025513 AMAQI
25th Jul 2025494 AMAQI
25th Jul 2025485 AMAQI
27°C23/31°C
25th Jul 2025486 AMAQI
25th Jul 2025487 AMAQI
25th Jul 2025388 AMAQI
25th Jul 2025349 AMAQI
25th Jul 20253010 AMAQI
25th Jul 20253011 AMAQI
25th Jul 20253512 PMAQI
25th Jul 2025351 PMAQI
25th Jul 2025432 PMAQI
25th Jul 2025533 PMAQI
25th Jul 2025584 PMAQI
25th Jul 2025605 PMAQI
25th Jul 2025636 PMAQI
25th Jul 2025617 PMAQI
25th Jul 2025588 PMAQI
25th Jul 2025609 PMAQI
25th Jul 20255910 PMAQI
25th Jul 20255911 PMAQI
26th Jul 20255812 AMAQI
26th Jul 2025511 AMAQI
26th Jul 2025522 AMAQI
26th Jul 2025513 AMAQI
26th Jul 2025504 AMAQI
26th Jul 2025495 AMAQI
23°C22/24°C
26th Jul 2025506 AMAQI
26th Jul 2025497 AMAQI
26th Jul 2025638 AMAQI
26th Jul 2025649 AMAQI
26th Jul 20256610 AMAQI
26th Jul 20256511 AMAQI
26th Jul 20256212 PMAQI
26th Jul 2025641 PMAQI
26th Jul 2025682 PMAQI
26th Jul 2025713 PMAQI
26th Jul 2025724 PMAQI
26th Jul 2025645 PMAQI
26th Jul 2025736 PMAQI
26th Jul 2025717 PMAQI
26th Jul 2025628 PMAQI
26th Jul 2025629 PMAQI
26th Jul 20256210 PMAQI
26th Jul 20255811 PMAQI
27th Jul 20255412 AMAQI
27th Jul 2025521 AMAQI
27th Jul 2025522 AMAQI
27th Jul 2025543 AMAQI
27th Jul 2025554 AMAQI
27th Jul 2025555 AMAQI
23°C22/23°C
27th Jul 2025556 AMAQI
27th Jul 2025557 AMAQI
27th Jul 2025508 AMAQI
27th Jul 2025409 AMAQI
27th Jul 20253610 AMAQI
27th Jul 20254111 AMAQI
27th Jul 20254312 PMAQI
27th Jul 2025411 PMAQI
27th Jul 2025422 PMAQI
27th Jul 2025363 PMAQI
27th Jul 2025364 PMAQI
27th Jul 2025395 PMAQI
27th Jul 2025376 PMAQI
27th Jul 2025467 PMAQI
27th Jul 2025528 PMAQI
27th Jul 2025549 PMAQI
27th Jul 20255410 PMAQI
27th Jul 20255411 PMAQI
28th Jul 20255412 AMAQI
28th Jul 2025541 AMAQI
28th Jul 2025552 AMAQI
28th Jul 2025543 AMAQI
28th Jul 2025534 AMAQI
28th Jul 2025535 AMAQI
24°C22/27°C
28th Jul 2025536 AMAQI
28th Jul 2025527 AMAQI
28th Jul 2025568 AMAQI
28th Jul 2025599 AMAQI
28th Jul 20255210 AMAQI
28th Jul 20254811 AMAQI
28th Jul 20255012 PMAQI
28th Jul 2025401 PMAQI
28th Jul 2025402 PMAQI
28th Jul 2025383 PMAQI
28th Jul 2025404 PMAQI
28th Jul 2025425 PMAQI
28th Jul 2025486 PMAQI
28th Jul 2025537 PMAQI
28th Jul 2025568 PMAQI
28th Jul 2025599 PMAQI
28th Jul 20255810 PMAQI
28th Jul 20255811 PMAQI
29th Jul 20255512 AMAQI
29th Jul 2025541 AMAQI
29th Jul 2025542 AMAQI
29th Jul 2025543 AMAQI
29th Jul 2025534 AMAQI
29th Jul 2025545 AMAQI
25°C21/30°C
29th Jul 2025546 AMAQI
29th Jul 2025537 AMAQI
29th Jul 2025508 AMAQI
29th Jul 2025529 AMAQI
29th Jul 20255410 AMAQI
29th Jul 20255911 AMAQI
29th Jul 20256012 PMAQI
29th Jul 2025621 PMAQI
29th Jul 2025592 PMAQI
29th Jul 2025543 PMAQI
29th Jul 2025504 PMAQI
29th Jul 2025475 PMAQI
29th Jul 2025486 PMAQI
29th Jul 2025487 PMAQI
29th Jul 2025538 PMAQI
29th Jul 2025529 PMAQI
29th Jul 20255210 PMAQI
29th Jul 20255211 PMAQI
30th Jul 20255212 AMAQI
30th Jul 2025541 AMAQI
30th Jul 2025542 AMAQI
30th Jul 2025543 AMAQI
30th Jul 2025544 AMAQI
30th Jul 2025555 AMAQI
23°C20/27°C
30th Jul 2025556 AMAQI
30th Jul 2025547 AMAQI
30th Jul 2025388 AMAQI
30th Jul 2025289 AMAQI
30th Jul 20252610 AMAQI
30th Jul 20251811 AMAQI
30th Jul 20252112 PMAQI
30th Jul 2025261 PMAQI
30th Jul 2025282 PMAQI
30th Jul 2025293 PMAQI
30th Jul 2025294 PMAQI
30th Jul 2025305 PMAQI
30th Jul 2025326 PMAQI
30th Jul 2025437 PMAQI
30th Jul 2025528 PMAQI
30th Jul 2025529 PMAQI
30th Jul 20254810 PMAQI
30th Jul 20254611 PMAQI
31st Jul 20254712 AMAQI
31st Jul 2025541 AMAQI
31st Jul 2025542 AMAQI
31st Jul 2025523 AMAQI
31st Jul 2025524 AMAQI
31st Jul 2025525 AMAQI
22°C19/26°C
31st Jul 2025526 AMAQI
31st Jul 2025527 AMAQI
31st Jul 2025528 AMAQI
31st Jul 2025529 AMAQI
31st Jul 20253010 AMAQI
31st Jul 20252311 AMAQI
31st Jul 20252412 PMAQI
31st Jul 2025301 PMAQI
31st Jul 2025342 PMAQI
31st Jul 2025343 PMAQI
31st Jul 2025374 PMAQI
31st Jul 2025335 PMAQI
31st Jul 2025286 PMAQI
31st Jul 2025347 PMAQI
31st Jul 2025548 PMAQI
31st Jul 2025559 PMAQI
31st Jul 20255610 PMAQI
31st Jul 20255611 PMAQI
1st Aug 20255412 AMAQI
1st Aug 2025531 AMAQI
1st Aug 2025532 AMAQI
1st Aug 2025523 AMAQI
1st Aug 2025524 AMAQI
1st Aug 2025525 AMAQI
23°C18/28°C
1st Aug 2025516 AMAQI
1st Aug 2025527 AMAQI
1st Aug 2025428 AMAQI
1st Aug 2025499 AMAQI
1st Aug 20255710 AMAQI
1st Aug 20255411 AMAQI
1st Aug 20255912 PMAQI
1st Aug 2025561 PMAQI
1st Aug 2025522 PMAQI
1st Aug 2025503 PMAQI
1st Aug 2025504 PMAQI
1st Aug 2025455 PMAQI
1st Aug 2025526 PMAQI
1st Aug 2025527 PMAQI
1st Aug 2025578 PMAQI
1st Aug 2025589 PMAQI
1st Aug 20255810 PMAQI
1st Aug 20255911 PMAQI
2nd Aug 20256012 AMAQI
2nd Aug 2025531 AMAQI
2nd Aug 2025522 AMAQI
2nd Aug 2025533 AMAQI
2nd Aug 2025524 AMAQI
2nd Aug 2025535 AMAQI
25°C19/29°C
2nd Aug 2025536 AMAQI
2nd Aug 2025547 AMAQI
2nd Aug 2025508 AMAQI
2nd Aug 2025469 AMAQI
2nd Aug 20255310 AMAQI
2nd Aug 20255611 AMAQI
2nd Aug 20255412 PMAQI
2nd Aug 2025521 PMAQI
2nd Aug 2025532 PMAQI
2nd Aug 2025533 PMAQI
2nd Aug 2025554 PMAQI
2nd Aug 2025575 PMAQI
2nd Aug 2025606 PMAQI
2nd Aug 2025567 PMAQI
2nd Aug 2025578 PMAQI
2nd Aug 2025599 PMAQI
2nd Aug 20255910 PMAQI
2nd Aug 20255811 PMAQI
3rd Aug 20255612 AMAQI
3rd Aug 2025541 AMAQI
3rd Aug 2025542 AMAQI
3rd Aug 2025543 AMAQI
3rd Aug 2025544 AMAQI
3rd Aug 2025545 AMAQI
25°C20/30°C
3rd Aug 2025546 AMAQI
3rd Aug 2025537 AMAQI
3rd Aug 2025528 AMAQI
3rd Aug 2025539 AMAQI
3rd Aug 20253410 AMAQI
3rd Aug 20254011 AMAQI
3rd Aug 20253712 PMAQI
3rd Aug 2025261 PMAQI
3rd Aug 2025312 PMAQI
3rd Aug 2025283 PMAQI
3rd Aug 2025314 PMAQI
3rd Aug 2025325 PMAQI
3rd Aug 2025286 PMAQI
3rd Aug 2025407 PMAQI
3rd Aug 2025488 PMAQI
3rd Aug 2025509 PMAQI
3rd Aug 20255410 PMAQI
3rd Aug 20255311 PMAQI
4th Aug 20255212 AMAQI
4th Aug 2025541 AMAQI
4th Aug 2025542 AMAQI
4th Aug 2025533 AMAQI
4th Aug 2025524 AMAQI
4th Aug 2025515 AMAQI
--°C/°C
6 AM
1 PM
9 PM
1 AM
5 AM
--°C/°C
Day time
Avg. Highest Time
8 PM - 9 PM
56AQI
2 hours / Day
60 hours / Month
Avg. Lowest Time
9 AM - 11 AM
42AQI
3 hours / Day
90 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 8 PM to 9 PM (Avg. 56), while the lowest AQI was between 9 AM to 11 AM (Avg. 42).
Night time
Avg. Highest Time
12 AM - 11 PM
55AQI
8 hours / Day
240 hours / Month
Avg. Lowest Time
12 AM - 11 PM
55AQI
8 hours / Day
240 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 11 PM (Avg. 55), while the lowest AQI was between 12 AM to 11 PM (Avg. 55).
2025 Days Vs Air Quality
Institute Of Posts And Telecommunications, Changchun, Jilin, China
2025
11%
23
53%
114
29%
61
7%
16
Total number of days with different AQI categories in last 215 days in 2025 (150 days remaining)
Good
23 DaysModerate
114 DaysPoor
61 DaysUnhealthy
16 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 11%
Health Risk Level:
Extreme
In 2025, 11% of 215 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
Institute Of Posts And Telecommunications, Changchun, Jilin, 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
84AQI
84AQI
2nd January 2025
78AQI
78AQI
3rd January 2025
77AQI
77AQI
4th January 2025
105AQI
105AQI
5th January 2025
122AQI
122AQI
6th January 2025
146AQI
146AQI
7th January 2025
107AQI
107AQI
8th January 2025
120AQI
120AQI
9th January 2025
115AQI
115AQI
10th January 2025
142AQI
142AQI
11th January 2025
128AQI
128AQI
12th January 2025
153AQI
153AQI
13th January 2025
152AQI
152AQI
14th January 2025
112AQI
112AQI
15th January 2025
97AQI
97AQI
16th January 2025
102AQI
102AQI
17th January 2025
108AQI
108AQI
18th January 2025
121AQI
121AQI
19th January 2025
114AQI
114AQI
20th January 2025
133AQI
133AQI
21st January 2025
147AQI
147AQI
22nd January 2025
146AQI
146AQI
23rd January 2025
146AQI
146AQI
24th January 2025
147AQI
147AQI
25th January 2025
154AQI
154AQI
26th January 2025
152AQI
152AQI
27th January 2025
167AQI
167AQI
28th January 2025
120AQI
120AQI
29th January 2025
151AQI
151AQI
30th January 2025
119AQI
119AQI
31st January 2025
151AQI
151AQI
1st February 2025
141AQI
141AQI
2nd February 2025
173AQI
173AQI
3rd February 2025
124AQI
124AQI
4th February 2025
152AQI
152AQI
5th February 2025
131AQI
131AQI
6th February 2025
128AQI
128AQI
7th February 2025
101AQI
101AQI
8th February 2025
91AQI
91AQI
9th February 2025
107AQI
107AQI
10th February 2025
116AQI
116AQI
11th February 2025
135AQI
135AQI
12th February 2025
109AQI
109AQI
13th February 2025
128AQI
128AQI
14th February 2025
116AQI
116AQI
15th February 2025
134AQI
134AQI
16th February 2025
85AQI
85AQI
17th February 2025
85AQI
85AQI
18th February 2025
70AQI
70AQI
19th February 2025
78AQI
78AQI
20th February 2025
76AQI
76AQI
21st February 2025
80AQI
80AQI
22nd February 2025
88AQI
88AQI
23rd February 2025
89AQI
89AQI
24th February 2025
84AQI
84AQI
25th February 2025
146AQI
146AQI
26th February 2025
81AQI
81AQI
27th February 2025
140AQI
140AQI
28th February 2025
142AQI
142AQI
1st March 2025
107AQI
107AQI
2nd March 2025
89AQI
89AQI
3rd March 2025
91AQI
91AQI
4th March 2025
82AQI
82AQI
5th March 2025
126AQI
126AQI
6th March 2025
113AQI
113AQI
7th March 2025
108AQI
108AQI
8th March 2025
140AQI
140AQI
9th March 2025
145AQI
145AQI
10th March 2025
164AQI
164AQI
11th March 2025
152AQI
152AQI
12th March 2025
158AQI
158AQI
13th March 2025
100AQI
100AQI
14th March 2025
93AQI
93AQI
15th March 2025
93AQI
93AQI
16th March 2025
101AQI
101AQI
17th March 2025
108AQI
108AQI
18th March 2025
119AQI
119AQI
19th March 2025
124AQI
124AQI
20th March 2025
147AQI
147AQI
21st March 2025
121AQI
121AQI
22nd March 2025
170AQI
170AQI
23rd March 2025
171AQI
171AQI
24th March 2025
116AQI
116AQI
25th March 2025
182AQI
182AQI
26th March 2025
151AQI
151AQI
27th March 2025
100AQI
100AQI
28th March 2025
83AQI
83AQI
29th March 2025
72AQI
72AQI
30th March 2025
72AQI
72AQI
31st March 2025
115AQI
115AQI
1st April 2025
126AQI
126AQI
2nd April 2025
111AQI
111AQI
3rd April 2025
140AQI
140AQI
4th April 2025
134AQI
134AQI
5th April 2025
102AQI
102AQI
6th April 2025
135AQI
135AQI
7th April 2025
98AQI
98AQI
8th April 2025
123AQI
123AQI
9th April 2025
140AQI
140AQI
10th April 2025
133AQI
133AQI
11th April 2025
140AQI
140AQI
12th April 2025
108AQI
108AQI
13th April 2025
77AQI
77AQI
14th April 2025
74AQI
74AQI
15th April 2025
66AQI
66AQI
16th April 2025
57AQI
57AQI
17th April 2025
92AQI
92AQI
18th April 2025
65AQI
65AQI
19th April 2025
70AQI
70AQI
20th April 2025
91AQI
91AQI
21st April 2025
99AQI
99AQI
22nd April 2025
69AQI
69AQI
23rd April 2025
71AQI
71AQI
24th April 2025
104AQI
104AQI
25th April 2025
64AQI
64AQI
26th April 2025
84AQI
84AQI
27th April 2025
56AQI
56AQI
28th April 2025
100AQI
100AQI
29th April 2025
88AQI
88AQI
30th April 2025
83AQI
83AQI
1st May 2025
65AQI
65AQI
2nd May 2025
64AQI
64AQI
3rd May 2025
60AQI
60AQI
4th May 2025
51AQI
51AQI
5th May 2025
68AQI
68AQI
6th May 2025
60AQI
60AQI
7th May 2025
77AQI
77AQI
8th May 2025
69AQI
69AQI
9th May 2025
74AQI
74AQI
10th May 2025
64AQI
64AQI
11th May 2025
73AQI
73AQI
12th May 2025
82AQI
82AQI
13th May 2025
82AQI
82AQI
14th May 2025
94AQI
94AQI
15th May 2025
84AQI
84AQI
16th May 2025
68AQI
68AQI
17th May 2025
64AQI
64AQI
18th May 2025
66AQI
66AQI
19th May 2025
58AQI
58AQI
20th May 2025
64AQI
64AQI
21st May 2025
72AQI
72AQI
22nd May 2025
70AQI
70AQI
23rd May 2025
61AQI
61AQI
24th May 2025
58AQI
58AQI
25th May 2025
54AQI
54AQI
26th May 2025
69AQI
69AQI
27th May 2025
73AQI
73AQI
28th May 2025
89AQI
89AQI
29th May 2025
76AQI
76AQI
30th May 2025
89AQI
89AQI
31st May 2025
93AQI
93AQI
1st June 2025
63AQI
63AQI
2nd June 2025
83AQI
83AQI
3rd June 2025
51AQI
51AQI
4th June 2025
62AQI
62AQI
5th June 2025
52AQI
52AQI
6th June 2025
52AQI
52AQI
7th June 2025
42AQI
42AQI
8th June 2025
56AQI
56AQI
9th June 2025
56AQI
56AQI
10th June 2025
43AQI
43AQI
11th June 2025
47AQI
47AQI
12th June 2025
54AQI
54AQI
13th June 2025
56AQI
56AQI
14th June 2025
54AQI
54AQI
15th June 2025
68AQI
68AQI
16th June 2025
59AQI
59AQI
17th June 2025
57AQI
57AQI
18th June 2025
62AQI
62AQI
19th June 2025
63AQI
63AQI
20th June 2025
56AQI
56AQI
21st June 2025
40AQI
40AQI
22nd June 2025
32AQI
32AQI
23rd June 2025
48AQI
48AQI
24th June 2025
57AQI
57AQI
25th June 2025
63AQI
63AQI
26th June 2025
57AQI
57AQI
27th June 2025
64AQI
64AQI
28th June 2025
65AQI
65AQI
29th June 2025
67AQI
67AQI
30th June 2025
53AQI
53AQI
1st July 2025
55AQI
55AQI
2nd July 2025
55AQI
55AQI
3rd July 2025
51AQI
51AQI
4th July 2025
44AQI
44AQI
5th July 2025
55AQI
55AQI
6th July 2025
47AQI
47AQI
7th July 2025
48AQI
48AQI
8th July 2025
54AQI
54AQI
9th July 2025
59AQI
59AQI
10th July 2025
60AQI
60AQI
11th July 2025
62AQI
62AQI
12th July 2025
63AQI
63AQI
13th July 2025
53AQI
53AQI
14th July 2025
48AQI
48AQI
15th July 2025
49AQI
49AQI
16th July 2025
47AQI
47AQI
17th July 2025
46AQI
46AQI
18th July 2025
47AQI
47AQI
19th July 2025
49AQI
49AQI
20th July 2025
46AQI
46AQI
21st July 2025
47AQI
47AQI
22nd July 2025
52AQI
52AQI
23rd July 2025
47AQI
47AQI
24th July 2025
41AQI
41AQI
25th July 2025
50AQI
50AQI
26th July 2025
60AQI
60AQI
27th July 2025
48AQI
48AQI
28th July 2025
52AQI
52AQI
29th July 2025
53AQI
53AQI
30th July 2025
42AQI
42AQI
31st July 2025
44AQI
44AQI
1st August 2025
53AQI
53AQI
2nd August 2025
53AQI
53AQI
126AQI
112AQI
120AQI
97AQI
71AQI
56AQI
51AQI
53AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202590AQI
4
20
7
11
15
2
10
14
7
18
12
31
6
24
17
14
2
23
114
61
16
Highest AQI recorded in
January126AQI
Lowest AQI recorded in
July51AQI
202486AQI
7
19
5
10
8
9
2
1
18
12
10
12
5
3
11
19
1
15
15
12
10
9
17
14
23
7
3
21
6
1
9
16
5
24
7
82
164
90
25
5
Highest AQI recorded in
April131AQI
Lowest AQI recorded in
September44AQI
202387AQI
1
16
9
4
1
8
14
6
8
15
7
1
1
12
10
5
1
1
4
25
1
1
11
19
19
12
23
8
21
9
5
14
10
2
2
12
8
3
1
12
16
3
87
155
83
30
4
2
Highest AQI recorded in
March126AQI
Lowest AQI recorded in
August40AQI
202282AQI
5
19
7
5
14
2
1
22
7
1
2
6
6
1
6
23
2
15
15
15
8
2
2
19
8
2
10
18
3
3
12
12
3
1
20
6
4
74
144
71
17
1
Highest AQI recorded in
January131AQI
Lowest AQI recorded in
July45AQI
202197AQI
13
11
6
1
13
9
6
6
16
7
1
1
1
11
12
5
1
2
16
12
1
8
21
1
3
27
1
7
12
2
8
22
22
7
2
1
10
14
5
1
16
10
2
31
189
95
34
3
1
Highest AQI recorded in
March137AQI
Lowest AQI recorded in
June63AQI
202087AQI
7
6
2
1
5
4
8
1
5
12
1
11
17
2
5
22
4
15
16
11
16
3
6
16
6
3
1
13
14
2
13
16
2
56
133
56
12
8
1
Highest AQI recorded in
April192AQI
Lowest AQI recorded in
August53AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2021(Avg.)
97AQILeast Polluted Year Recorded
2022(Avg.)
82AQIInstitute Of Posts And Telecommunications's annual 2025 AQI (90) shows an average percentage change of 2.6% (worsened AQI) compared to previous years: 2020 (87), 2021 (97), 2022 (82), 2023 (87), 2024 (86).
