Sewage Treatment Plant, Wenlan, Yunnan, China Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+
September Air Quality Analysis
Sewage Treatment Plant, Wenlan, Yunnan, China
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
30th Sep 2022
102AQILowest AQI recorded on
12th Sep 2022
30AQISame Day Analysis (18th September ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 52 of Moderate 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 Sep - 19th Sep 2025
Sewage Treatment Plant, Wenlan, Yunnan, China
AQI
Day
Night
.
5 AM18th Sep 2025
6 PM
4 AM19th Sep 2025
Day time
Avg. Highest Time
9AM18th Sep
63AQI
Avg. Lowest Time
4PM18th Sep
22AQI
Night time
Avg. Highest Time
10PM18th Sep
59AQI
Avg. Lowest Time
7PM18th Sep
48AQI
In the last 24 hours,
Sewage Treatment Plant's AQI reached its highest point of 63 at 9 AM during the Day, while the lowest point, 22, was recorded at 4 PM during the Day between 18th Sep and 19th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Sewage Treatment Plant, Wenlan, Yunnan, China
AugSep
20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th
Day
Night
20th Aug 2025525 AMAQI
20th Aug 2025526 AMAQI
20th Aug 2025527 AMAQI
20th Aug 2025558 AMAQI
20th Aug 2025579 AMAQI
20th Aug 20255610 AMAQI
20th Aug 20255011 AMAQI
20th Aug 20254812 PMAQI
20th Aug 2025441 PMAQI
20th Aug 2025362 PMAQI
20th Aug 2025263 PMAQI
20th Aug 2025414 PMAQI
20th Aug 2025405 PMAQI
20th Aug 2025376 PMAQI
20th Aug 2025417 PMAQI
20th Aug 2025518 PMAQI
20th Aug 2025539 PMAQI
20th Aug 20255610 PMAQI
20th Aug 20255411 PMAQI
21st Aug 20255112 AMAQI
21st Aug 2025531 AMAQI
21st Aug 2025522 AMAQI
21st Aug 2025523 AMAQI
21st Aug 2025524 AMAQI
18°C15/20°C
21st Aug 2025525 AMAQI
21st Aug 2025526 AMAQI
21st Aug 2025527 AMAQI
21st Aug 2025418 AMAQI
21st Aug 2025399 AMAQI
21st Aug 20253210 AMAQI
21st Aug 20254111 AMAQI
21st Aug 20254112 PMAQI
21st Aug 2025431 PMAQI
21st Aug 2025422 PMAQI
21st Aug 2025373 PMAQI
21st Aug 2025364 PMAQI
21st Aug 2025355 PMAQI
21st Aug 2025446 PMAQI
21st Aug 2025507 PMAQI
21st Aug 2025548 PMAQI
21st Aug 2025509 PMAQI
21st Aug 20255210 PMAQI
21st Aug 20255211 PMAQI
22nd Aug 20255112 AMAQI
22nd Aug 2025521 AMAQI
22nd Aug 2025522 AMAQI
22nd Aug 2025503 AMAQI
22nd Aug 2025504 AMAQI
19°C18/21°C
22nd Aug 2025505 AMAQI
22nd Aug 2025506 AMAQI
22nd Aug 2025517 AMAQI
22nd Aug 2025418 AMAQI
22nd Aug 2025429 AMAQI
22nd Aug 20255410 AMAQI
22nd Aug 20255411 AMAQI
22nd Aug 20255212 PMAQI
22nd Aug 2025481 PMAQI
22nd Aug 2025422 PMAQI
22nd Aug 2025503 PMAQI
22nd Aug 2025414 PMAQI
22nd Aug 2025395 PMAQI
22nd Aug 2025406 PMAQI
22nd Aug 2025497 PMAQI
22nd Aug 2025548 PMAQI
22nd Aug 2025569 PMAQI
22nd Aug 20255410 PMAQI
22nd Aug 20255111 PMAQI
23rd Aug 20255012 AMAQI
23rd Aug 2025491 AMAQI
23rd Aug 2025502 AMAQI
23rd Aug 2025493 AMAQI
23rd Aug 2025504 AMAQI
19°C17/21°C
23rd Aug 2025495 AMAQI
23rd Aug 2025506 AMAQI
23rd Aug 2025497 AMAQI
23rd Aug 2025318 AMAQI
23rd Aug 2025299 AMAQI
23rd Aug 20253010 AMAQI
23rd Aug 20253211 AMAQI
23rd Aug 20253812 PMAQI
23rd Aug 2025341 PMAQI
23rd Aug 2025342 PMAQI
23rd Aug 2025273 PMAQI
23rd Aug 2025324 PMAQI
23rd Aug 2025315 PMAQI
23rd Aug 2025336 PMAQI
23rd Aug 2025437 PMAQI
23rd Aug 2025488 PMAQI
23rd Aug 2025529 PMAQI
23rd Aug 20255110 PMAQI
23rd Aug 20255511 PMAQI
24th Aug 20255112 AMAQI
24th Aug 2025481 AMAQI
24th Aug 2025482 AMAQI
24th Aug 2025453 AMAQI
24th Aug 2025454 AMAQI
19°C17/20°C
24th Aug 2025445 AMAQI
24th Aug 2025446 AMAQI
24th Aug 2025447 AMAQI
24th Aug 2025498 AMAQI
24th Aug 2025529 AMAQI
24th Aug 20254910 AMAQI
24th Aug 20255211 AMAQI
24th Aug 20254512 PMAQI
24th Aug 2025421 PMAQI
24th Aug 2025352 PMAQI
24th Aug 2025383 PMAQI
24th Aug 2025344 PMAQI
24th Aug 2025345 PMAQI
24th Aug 2025326 PMAQI
24th Aug 2025417 PMAQI
24th Aug 2025498 PMAQI
24th Aug 2025529 PMAQI
24th Aug 20254610 PMAQI
24th Aug 20254811 PMAQI
25th Aug 20254912 AMAQI
25th Aug 2025451 AMAQI
25th Aug 2025452 AMAQI
25th Aug 2025433 AMAQI
25th Aug 2025474 AMAQI
21°C18/25°C
25th Aug 2025455 AMAQI
25th Aug 2025456 AMAQI
25th Aug 2025447 AMAQI
25th Aug 2025548 AMAQI
25th Aug 2025579 AMAQI
25th Aug 20255410 AMAQI
25th Aug 20254911 AMAQI
25th Aug 20254712 PMAQI
25th Aug 2025471 PMAQI
25th Aug 2025562 PMAQI
25th Aug 2025573 PMAQI
25th Aug 2025474 PMAQI
25th Aug 2025485 PMAQI
25th Aug 2025496 PMAQI
25th Aug 2025487 PMAQI
25th Aug 2025548 PMAQI
25th Aug 2025549 PMAQI
25th Aug 20255410 PMAQI
25th Aug 20255611 PMAQI
26th Aug 20255112 AMAQI
26th Aug 2025451 AMAQI
26th Aug 2025472 AMAQI
26th Aug 2025483 AMAQI
26th Aug 2025484 AMAQI
20°C17/25°C
26th Aug 2025485 AMAQI
26th Aug 2025486 AMAQI
26th Aug 2025477 AMAQI
26th Aug 2025488 AMAQI
26th Aug 2025579 AMAQI
26th Aug 20255310 AMAQI
26th Aug 20255011 AMAQI
26th Aug 20255012 PMAQI
26th Aug 2025501 PMAQI
26th Aug 2025562 PMAQI
26th Aug 2025553 PMAQI
26th Aug 2025484 PMAQI
26th Aug 2025525 PMAQI
26th Aug 2025446 PMAQI
26th Aug 2025567 PMAQI
26th Aug 2025568 PMAQI
26th Aug 2025539 PMAQI
26th Aug 20255410 PMAQI
26th Aug 20256411 PMAQI
27th Aug 20255912 AMAQI
27th Aug 2025501 AMAQI
27th Aug 2025482 AMAQI
27th Aug 2025483 AMAQI
27th Aug 2025504 AMAQI
16°C14/18°C
27th Aug 2025505 AMAQI
27th Aug 2025516 AMAQI
27th Aug 2025497 AMAQI
27th Aug 2025448 AMAQI
27th Aug 2025629 AMAQI
27th Aug 20255510 AMAQI
27th Aug 20256211 AMAQI
27th Aug 20254812 PMAQI
27th Aug 2025551 PMAQI
27th Aug 2025482 PMAQI
27th Aug 2025393 PMAQI
27th Aug 2025384 PMAQI
27th Aug 2025425 PMAQI
27th Aug 2025356 PMAQI
27th Aug 2025417 PMAQI
27th Aug 2025528 PMAQI
27th Aug 2025549 PMAQI
27th Aug 20255010 PMAQI
27th Aug 20255011 PMAQI
28th Aug 20255012 AMAQI
28th Aug 2025501 AMAQI
28th Aug 2025492 AMAQI
28th Aug 2025523 AMAQI
28th Aug 2025504 AMAQI
20°C17/25°C
28th Aug 2025505 AMAQI
28th Aug 2025506 AMAQI
28th Aug 2025517 AMAQI
28th Aug 2025388 AMAQI
28th Aug 2025459 AMAQI
28th Aug 20254110 AMAQI
28th Aug 20254611 AMAQI
28th Aug 20254512 PMAQI
28th Aug 2025511 PMAQI
28th Aug 2025392 PMAQI
28th Aug 2025333 PMAQI
28th Aug 2025294 PMAQI
28th Aug 2025265 PMAQI
28th Aug 2025306 PMAQI
28th Aug 2025487 PMAQI
28th Aug 2025528 PMAQI
28th Aug 2025529 PMAQI
28th Aug 20255010 PMAQI
28th Aug 20254211 PMAQI
29th Aug 20254412 AMAQI
29th Aug 2025521 AMAQI
29th Aug 2025482 AMAQI
29th Aug 2025483 AMAQI
29th Aug 2025484 AMAQI
19°C16/24°C
29th Aug 2025475 AMAQI
29th Aug 2025476 AMAQI
29th Aug 2025467 AMAQI
29th Aug 2025388 AMAQI
29th Aug 2025389 AMAQI
29th Aug 20254010 AMAQI
29th Aug 20253611 AMAQI
29th Aug 20254012 PMAQI
29th Aug 2025401 PMAQI
29th Aug 2025412 PMAQI
29th Aug 2025463 PMAQI
29th Aug 2025344 PMAQI
29th Aug 2025355 PMAQI
29th Aug 2025436 PMAQI
29th Aug 2025487 PMAQI
29th Aug 2025498 PMAQI
29th Aug 2025449 PMAQI
29th Aug 20255310 PMAQI
29th Aug 20255311 PMAQI
30th Aug 20255412 AMAQI
30th Aug 2025461 AMAQI
30th Aug 2025462 AMAQI
30th Aug 2025443 AMAQI
30th Aug 2025444 AMAQI
20°C17/24°C
30th Aug 2025435 AMAQI
30th Aug 2025446 AMAQI
30th Aug 2025457 AMAQI
30th Aug 2025508 AMAQI
30th Aug 2025489 AMAQI
30th Aug 20254710 AMAQI
30th Aug 20254411 AMAQI
30th Aug 20255312 PMAQI
30th Aug 2025421 PMAQI
30th Aug 2025532 PMAQI
30th Aug 2025543 PMAQI
30th Aug 2025484 PMAQI
30th Aug 2025385 PMAQI
30th Aug 2025406 PMAQI
30th Aug 2025467 PMAQI
30th Aug 2025548 PMAQI
30th Aug 2025559 PMAQI
30th Aug 20255810 PMAQI
30th Aug 20255411 PMAQI
31st Aug 20254812 AMAQI
31st Aug 2025441 AMAQI
31st Aug 2025462 AMAQI
31st Aug 2025463 AMAQI
31st Aug 2025464 AMAQI
20°C17/25°C
31st Aug 2025465 AMAQI
31st Aug 2025476 AMAQI
31st Aug 2025467 AMAQI
31st Aug 2025528 AMAQI
31st Aug 2025489 AMAQI
31st Aug 20255610 AMAQI
31st Aug 20255611 AMAQI
31st Aug 20255312 PMAQI
31st Aug 2025501 PMAQI
31st Aug 2025502 PMAQI
31st Aug 2025403 PMAQI
31st Aug 2025424 PMAQI
31st Aug 2025425 PMAQI
31st Aug 2025376 PMAQI
31st Aug 2025447 PMAQI
31st Aug 2025478 PMAQI
31st Aug 2025569 PMAQI
31st Aug 20255010 PMAQI
31st Aug 20254811 PMAQI
1st Sep 20255012 AMAQI
1st Sep 2025471 AMAQI
1st Sep 2025442 AMAQI
1st Sep 2025503 AMAQI
1st Sep 2025504 AMAQI
19°C15/21°C
1st Sep 2025505 AMAQI
1st Sep 2025506 AMAQI
1st Sep 2025507 AMAQI
1st Sep 2025508 AMAQI
1st Sep 2025499 AMAQI
1st Sep 20255210 AMAQI
1st Sep 20253911 AMAQI
1st Sep 20254612 PMAQI
1st Sep 2025461 PMAQI
1st Sep 2025482 PMAQI
1st Sep 2025423 PMAQI
1st Sep 2025394 PMAQI
1st Sep 2025405 PMAQI
1st Sep 2025426 PMAQI
1st Sep 2025457 PMAQI
1st Sep 2025538 PMAQI
1st Sep 2025579 PMAQI
1st Sep 20255810 PMAQI
1st Sep 20255811 PMAQI
2nd Sep 20255412 AMAQI
2nd Sep 2025491 AMAQI
2nd Sep 2025522 AMAQI
2nd Sep 2025503 AMAQI
2nd Sep 2025494 AMAQI
19°C16/22°C
2nd Sep 2025495 AMAQI
2nd Sep 2025486 AMAQI
2nd Sep 2025507 AMAQI
2nd Sep 2025528 AMAQI
2nd Sep 2025549 AMAQI
2nd Sep 20255010 AMAQI
2nd Sep 20254811 AMAQI
2nd Sep 20255112 PMAQI
2nd Sep 2025481 PMAQI
2nd Sep 2025332 PMAQI
2nd Sep 2025403 PMAQI
2nd Sep 2025434 PMAQI
2nd Sep 2025395 PMAQI
2nd Sep 2025396 PMAQI
2nd Sep 2025477 PMAQI
2nd Sep 2025468 PMAQI
2nd Sep 2025519 PMAQI
2nd Sep 20255310 PMAQI
2nd Sep 20255511 PMAQI
3rd Sep 20255612 AMAQI
3rd Sep 2025521 AMAQI
3rd Sep 2025512 AMAQI
3rd Sep 2025523 AMAQI
3rd Sep 2025524 AMAQI
19°C16/22°C
3rd Sep 2025515 AMAQI
3rd Sep 2025516 AMAQI
3rd Sep 2025527 AMAQI
3rd Sep 2025518 AMAQI
3rd Sep 2025529 AMAQI
3rd Sep 20255210 AMAQI
3rd Sep 20255211 AMAQI
3rd Sep 20255112 PMAQI
3rd Sep 2025491 PMAQI
3rd Sep 2025512 PMAQI
3rd Sep 2025503 PMAQI
3rd Sep 2025524 PMAQI
3rd Sep 2025565 PMAQI
3rd Sep 2025486 PMAQI
3rd Sep 2025577 PMAQI
3rd Sep 2025558 PMAQI
3rd Sep 2025569 PMAQI
3rd Sep 20255810 PMAQI
3rd Sep 20255611 PMAQI
4th Sep 20255312 AMAQI
4th Sep 2025521 AMAQI
4th Sep 2025522 AMAQI
4th Sep 2025523 AMAQI
4th Sep 2025524 AMAQI
20°C16/23°C
4th Sep 2025525 AMAQI
4th Sep 2025536 AMAQI
4th Sep 2025527 AMAQI
4th Sep 2025518 AMAQI
4th Sep 2025539 AMAQI
4th Sep 20255610 AMAQI
4th Sep 20255811 AMAQI
4th Sep 20255312 PMAQI
4th Sep 2025571 PMAQI
4th Sep 2025502 PMAQI
4th Sep 2025533 PMAQI
4th Sep 2025384 PMAQI
4th Sep 2025565 PMAQI
4th Sep 2025706 PMAQI
4th Sep 2025707 PMAQI
4th Sep 2025658 PMAQI
4th Sep 2025629 PMAQI
4th Sep 20256410 PMAQI
4th Sep 20256111 PMAQI
5th Sep 20256812 AMAQI
5th Sep 2025521 AMAQI
5th Sep 2025522 AMAQI
5th Sep 2025533 AMAQI
5th Sep 2025534 AMAQI
20°C16/23°C
5th Sep 2025535 AMAQI
5th Sep 2025546 AMAQI
5th Sep 2025537 AMAQI
5th Sep 2025618 AMAQI
5th Sep 2025589 AMAQI
5th Sep 20255710 AMAQI
5th Sep 20254811 AMAQI
5th Sep 20254212 PMAQI
5th Sep 2025421 PMAQI
5th Sep 2025392 PMAQI
5th Sep 2025443 PMAQI
5th Sep 2025444 PMAQI
5th Sep 2025475 PMAQI
5th Sep 2025376 PMAQI
5th Sep 2025507 PMAQI
5th Sep 2025558 PMAQI
5th Sep 2025589 PMAQI
5th Sep 20256010 PMAQI
5th Sep 20256211 PMAQI
6th Sep 20256112 AMAQI
6th Sep 2025541 AMAQI
6th Sep 2025512 AMAQI
6th Sep 2025543 AMAQI
6th Sep 2025564 AMAQI
23°C19/28°C
6th Sep 2025565 AMAQI
6th Sep 2025556 AMAQI
6th Sep 2025557 AMAQI
6th Sep 2025608 AMAQI
6th Sep 2025639 AMAQI
6th Sep 20256210 AMAQI
6th Sep 20256111 AMAQI
6th Sep 20255912 PMAQI
6th Sep 2025601 PMAQI
6th Sep 2025582 PMAQI
6th Sep 2025573 PMAQI
6th Sep 2025554 PMAQI
6th Sep 2025505 PMAQI
6th Sep 2025506 PMAQI
6th Sep 2025557 PMAQI
6th Sep 2025588 PMAQI
6th Sep 2025589 PMAQI
6th Sep 20255810 PMAQI
6th Sep 20256011 PMAQI
7th Sep 20255612 AMAQI
7th Sep 2025541 AMAQI
7th Sep 2025552 AMAQI
7th Sep 2025563 AMAQI
7th Sep 2025554 AMAQI
20°C16/22°C
7th Sep 2025555 AMAQI
7th Sep 2025556 AMAQI
7th Sep 2025557 AMAQI
7th Sep 2025588 AMAQI
7th Sep 2025629 AMAQI
7th Sep 20256410 AMAQI
7th Sep 20256011 AMAQI
7th Sep 20256212 PMAQI
7th Sep 2025561 PMAQI
7th Sep 2025532 PMAQI
7th Sep 2025513 PMAQI
7th Sep 2025504 PMAQI
7th Sep 2025515 PMAQI
7th Sep 2025546 PMAQI
7th Sep 2025567 PMAQI
7th Sep 2025608 PMAQI
7th Sep 2025579 PMAQI
7th Sep 20256210 PMAQI
7th Sep 20256011 PMAQI
8th Sep 20256012 AMAQI
8th Sep 2025541 AMAQI
8th Sep 2025552 AMAQI
8th Sep 2025563 AMAQI
8th Sep 2025564 AMAQI
20°C16/22°C
8th Sep 2025555 AMAQI
8th Sep 2025556 AMAQI
8th Sep 2025557 AMAQI
8th Sep 2025588 AMAQI
8th Sep 2025629 AMAQI
8th Sep 20256210 AMAQI
8th Sep 20256211 AMAQI
8th Sep 20256612 PMAQI
8th Sep 2025561 PMAQI
8th Sep 2025422 PMAQI
8th Sep 2025373 PMAQI
8th Sep 2025414 PMAQI
8th Sep 2025445 PMAQI
8th Sep 2025526 PMAQI
8th Sep 2025577 PMAQI
8th Sep 2025598 PMAQI
8th Sep 2025619 PMAQI
8th Sep 20256310 PMAQI
8th Sep 20256211 PMAQI
9th Sep 20256112 AMAQI
9th Sep 2025541 AMAQI
9th Sep 2025552 AMAQI
9th Sep 2025553 AMAQI
9th Sep 2025554 AMAQI
20°C16/22°C
9th Sep 2025545 AMAQI
9th Sep 2025546 AMAQI
9th Sep 2025557 AMAQI
9th Sep 2025598 AMAQI
9th Sep 2025539 AMAQI
9th Sep 20255810 AMAQI
9th Sep 20255711 AMAQI
9th Sep 20255612 PMAQI
9th Sep 2025531 PMAQI
9th Sep 2025542 PMAQI
9th Sep 2025483 PMAQI
9th Sep 2025444 PMAQI
9th Sep 2025405 PMAQI
9th Sep 2025436 PMAQI
9th Sep 2025527 PMAQI
9th Sep 2025588 PMAQI
9th Sep 2025599 PMAQI
9th Sep 20255910 PMAQI
9th Sep 20255711 PMAQI
10th Sep 20255512 AMAQI
10th Sep 2025551 AMAQI
10th Sep 2025552 AMAQI
10th Sep 2025563 AMAQI
10th Sep 2025544 AMAQI
19°C15/21°C
10th Sep 2025555 AMAQI
10th Sep 2025546 AMAQI
10th Sep 2025557 AMAQI
10th Sep 2025508 AMAQI
10th Sep 2025449 AMAQI
10th Sep 20254210 AMAQI
10th Sep 20254411 AMAQI
10th Sep 20253812 PMAQI
10th Sep 2025451 PMAQI
10th Sep 2025422 PMAQI
10th Sep 2025363 PMAQI
10th Sep 2025324 PMAQI
10th Sep 2025365 PMAQI
10th Sep 2025346 PMAQI
10th Sep 2025477 PMAQI
10th Sep 2025508 PMAQI
10th Sep 2025569 PMAQI
10th Sep 20255610 PMAQI
10th Sep 20255811 PMAQI
11th Sep 20255712 AMAQI
11th Sep 2025551 AMAQI
11th Sep 2025552 AMAQI
11th Sep 2025543 AMAQI
11th Sep 2025534 AMAQI
18°C14/20°C
11th Sep 2025535 AMAQI
11th Sep 2025526 AMAQI
11th Sep 2025537 AMAQI
11th Sep 2025508 AMAQI
11th Sep 2025489 AMAQI
11th Sep 20254610 AMAQI
11th Sep 20254811 AMAQI
11th Sep 20255212 PMAQI
11th Sep 2025521 PMAQI
11th Sep 2025432 PMAQI
11th Sep 2025323 PMAQI
11th Sep 2025284 PMAQI
11th Sep 2025245 PMAQI
11th Sep 2025306 PMAQI
11th Sep 2025447 PMAQI
11th Sep 2025548 PMAQI
11th Sep 2025559 PMAQI
11th Sep 20255410 PMAQI
11th Sep 20255211 PMAQI
12th Sep 20255412 AMAQI
12th Sep 2025541 AMAQI
12th Sep 2025542 AMAQI
12th Sep 2025533 AMAQI
12th Sep 2025524 AMAQI
20°C15/25°C
12th Sep 2025525 AMAQI
12th Sep 2025526 AMAQI
12th Sep 2025527 AMAQI
12th Sep 2025468 AMAQI
12th Sep 2025429 AMAQI
12th Sep 20253210 AMAQI
12th Sep 20253111 AMAQI
12th Sep 20253412 PMAQI
12th Sep 2025311 PMAQI
12th Sep 2025282 PMAQI
12th Sep 2025283 PMAQI
12th Sep 2025314 PMAQI
12th Sep 2025385 PMAQI
12th Sep 2025336 PMAQI
12th Sep 2025467 PMAQI
12th Sep 2025518 PMAQI
12th Sep 2025499 PMAQI
12th Sep 20254910 PMAQI
12th Sep 20254811 PMAQI
13th Sep 20255412 AMAQI
13th Sep 2025521 AMAQI
13th Sep 2025532 AMAQI
13th Sep 2025503 AMAQI
13th Sep 2025514 AMAQI
20°C16/23°C
13th Sep 2025505 AMAQI
13th Sep 2025516 AMAQI
13th Sep 2025517 AMAQI
13th Sep 2025438 AMAQI
13th Sep 2025449 AMAQI
13th Sep 20255010 AMAQI
13th Sep 20254711 AMAQI
13th Sep 20253712 PMAQI
13th Sep 2025461 PMAQI
13th Sep 2025442 PMAQI
13th Sep 2025393 PMAQI
13th Sep 2025344 PMAQI
13th Sep 2025415 PMAQI
13th Sep 2025456 PMAQI
13th Sep 2025517 PMAQI
13th Sep 2025528 PMAQI
13th Sep 2025529 PMAQI
13th Sep 20255410 PMAQI
13th Sep 20255511 PMAQI
14th Sep 20255012 AMAQI
14th Sep 2025511 AMAQI
14th Sep 2025522 AMAQI
14th Sep 2025493 AMAQI
14th Sep 2025484 AMAQI
21°C18/25°C
14th Sep 2025515 AMAQI
14th Sep 2025506 AMAQI
14th Sep 2025507 AMAQI
14th Sep 2025468 AMAQI
14th Sep 2025449 AMAQI
14th Sep 20255310 AMAQI
14th Sep 20257511 AMAQI
14th Sep 20255412 PMAQI
14th Sep 2025541 PMAQI
14th Sep 2025542 PMAQI
14th Sep 2025403 PMAQI
14th Sep 2025434 PMAQI
14th Sep 2025465 PMAQI
14th Sep 2025536 PMAQI
14th Sep 2025547 PMAQI
14th Sep 2025548 PMAQI
14th Sep 2025529 PMAQI
14th Sep 20255410 PMAQI
14th Sep 20255411 PMAQI
15th Sep 20255412 AMAQI
15th Sep 2025501 AMAQI
15th Sep 2025502 AMAQI
15th Sep 2025503 AMAQI
15th Sep 2025504 AMAQI
19°C15/20°C
15th Sep 2025525 AMAQI
15th Sep 2025516 AMAQI
15th Sep 2025507 AMAQI
15th Sep 2025568 AMAQI
15th Sep 2025599 AMAQI
15th Sep 20255810 AMAQI
15th Sep 20256311 AMAQI
15th Sep 20256212 PMAQI
15th Sep 2025541 PMAQI
15th Sep 2025512 PMAQI
15th Sep 2025483 PMAQI
15th Sep 2025454 PMAQI
15th Sep 2025525 PMAQI
15th Sep 2025406 PMAQI
15th Sep 2025537 PMAQI
15th Sep 2025548 PMAQI
15th Sep 2025559 PMAQI
15th Sep 20255010 PMAQI
15th Sep 20255411 PMAQI
16th Sep 20255512 AMAQI
16th Sep 2025521 AMAQI
16th Sep 2025522 AMAQI
16th Sep 2025513 AMAQI
16th Sep 2025524 AMAQI
19°C15/21°C
16th Sep 2025525 AMAQI
16th Sep 2025526 AMAQI
16th Sep 2025537 AMAQI
16th Sep 2025608 AMAQI
16th Sep 2025629 AMAQI
16th Sep 20255810 AMAQI
16th Sep 20255211 AMAQI
16th Sep 20255312 PMAQI
16th Sep 2025461 PMAQI
16th Sep 2025422 PMAQI
16th Sep 2025333 PMAQI
16th Sep 2025284 PMAQI
16th Sep 2025285 PMAQI
16th Sep 2025406 PMAQI
16th Sep 2025537 PMAQI
16th Sep 2025518 PMAQI
16th Sep 2025539 PMAQI
16th Sep 20255310 PMAQI
16th Sep 20255811 PMAQI
17th Sep 20255412 AMAQI
17th Sep 2025521 AMAQI
17th Sep 2025522 AMAQI
17th Sep 2025523 AMAQI
17th Sep 2025534 AMAQI
20°C16/24°C
17th Sep 2025535 AMAQI
17th Sep 2025536 AMAQI
17th Sep 2025537 AMAQI
17th Sep 2025548 AMAQI
17th Sep 2025549 AMAQI
17th Sep 20255410 AMAQI
17th Sep 20254511 AMAQI
17th Sep 20254212 PMAQI
17th Sep 2025561 PMAQI
17th Sep 2025512 PMAQI
17th Sep 2025473 PMAQI
17th Sep 2025484 PMAQI
17th Sep 2025545 PMAQI
17th Sep 2025466 PMAQI
17th Sep 2025557 PMAQI
17th Sep 2025598 PMAQI
17th Sep 2025609 PMAQI
17th Sep 20256010 PMAQI
17th Sep 20256111 PMAQI
18th Sep 20256212 AMAQI
18th Sep 2025521 AMAQI
18th Sep 2025522 AMAQI
18th Sep 2025533 AMAQI
18th Sep 2025534 AMAQI
20°C17/25°C
18th Sep 2025535 AMAQI
18th Sep 2025536 AMAQI
18th Sep 2025537 AMAQI
18th Sep 2025608 AMAQI
18th Sep 2025639 AMAQI
18th Sep 20256010 AMAQI
18th Sep 20255811 AMAQI
18th Sep 20255112 PMAQI
18th Sep 2025401 PMAQI
18th Sep 2025342 PMAQI
18th Sep 2025273 PMAQI
18th Sep 2025224 PMAQI
18th Sep 2025265 PMAQI
18th Sep 2025426 PMAQI
18th Sep 2025487 PMAQI
18th Sep 2025528 PMAQI
18th Sep 2025569 PMAQI
18th Sep 20255910 PMAQI
18th Sep 20255811 PMAQI
19th Sep 20255812 AMAQI
19th Sep 2025541 AMAQI
19th Sep 2025542 AMAQI
19th Sep 2025543 AMAQI
19th Sep 2025544 AMAQI
18°C14/20°C
19th Sep 2025535 AMAQI
5 AM19th Sep 2025546 AMAQI
19th Sep 2025547 AMAQI
19th Sep 2025538 AMAQI
19th Sep 2025539 AMAQI
19th Sep 20255610 AMAQI
19th Sep 20254611 AMAQI
11 AM19th Sep 20255312 PMAQI
19th Sep 2025441 PMAQI
19th Sep 2025332 PMAQI
19th Sep 2025323 PMAQI
19th Sep 2025374 PMAQI
19th Sep 2025405 PMAQI
19th Sep 2025546 PMAQI
6 PM11 PM
4 AM
--°C/°C
Day time
Avg. Highest Time
5 AM - 11 AM
51AQI
7 hours / Day
210 hours / Month
Avg. Lowest Time
4 PM
39AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 11 AM (Avg. 51), while the lowest AQI was between 4 PM to 4 PM (Avg. 39).
Night time
Avg. Highest Time
8 PM - 11 PM
55AQI
4 hours / Day
120 hours / Month
Avg. Lowest Time
1 AM - 7 PM
51AQI
5 hours / Day
150 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 8 PM to 11 PM (Avg. 55), while the lowest AQI was between 1 AM to 7 PM (Avg. 51).
2025 Days Vs Air Quality
Sewage Treatment Plant, Wenlan, Yunnan, China
2025
24%
62
57%
148
19%
50
0.3%
1
Total number of days with different AQI categories in last 262 days in 2025 (103 days remaining)
Good
62 DaysModerate
148 DaysPoor
50 DaysUnhealthy
1 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 24%
Health Risk Level:
Very high
In 2025, 24% of 262 days were within WHO’s safe air quality limits. The risk of health issues is Very high, including respiratory issues, heart disease, and stress, particularly affecting vulnerable groups.
Annual Air Quality Insights
Sewage Treatment Plant, Wenlan, Yunnan, 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
95AQI
95AQI
2nd January 2025
98AQI
98AQI
3rd January 2025
114AQI
114AQI
4th January 2025
127AQI
127AQI
5th January 2025
115AQI
115AQI
6th January 2025
142AQI
142AQI
7th January 2025
140AQI
140AQI
8th January 2025
147AQI
147AQI
9th January 2025
134AQI
134AQI
10th January 2025
112AQI
112AQI
11th January 2025
105AQI
105AQI
12th January 2025
114AQI
114AQI
13th January 2025
105AQI
105AQI
14th January 2025
114AQI
114AQI
15th January 2025
131AQI
131AQI
16th January 2025
129AQI
129AQI
17th January 2025
140AQI
140AQI
18th January 2025
145AQI
145AQI
19th January 2025
112AQI
112AQI
20th January 2025
122AQI
122AQI
21st January 2025
140AQI
140AQI
22nd January 2025
140AQI
140AQI
23rd January 2025
112AQI
112AQI
24th January 2025
103AQI
103AQI
25th January 2025
96AQI
96AQI
26th January 2025
80AQI
80AQI
27th January 2025
93AQI
93AQI
28th January 2025
94AQI
94AQI
29th January 2025
99AQI
99AQI
30th January 2025
94AQI
94AQI
31st January 2025
88AQI
88AQI
1st February 2025
96AQI
96AQI
2nd February 2025
104AQI
104AQI
3rd February 2025
88AQI
88AQI
4th February 2025
103AQI
103AQI
5th February 2025
99AQI
99AQI
6th February 2025
104AQI
104AQI
7th February 2025
94AQI
94AQI
8th February 2025
79AQI
79AQI
9th February 2025
70AQI
70AQI
10th February 2025
77AQI
77AQI
11th February 2025
84AQI
84AQI
12th February 2025
100AQI
100AQI
13th February 2025
80AQI
80AQI
14th February 2025
68AQI
68AQI
15th February 2025
60AQI
60AQI
16th February 2025
70AQI
70AQI
17th February 2025
63AQI
63AQI
18th February 2025
55AQI
55AQI
19th February 2025
58AQI
58AQI
20th February 2025
56AQI
56AQI
21st February 2025
53AQI
53AQI
22nd February 2025
53AQI
53AQI
23rd February 2025
50AQI
50AQI
24th February 2025
39AQI
39AQI
25th February 2025
47AQI
47AQI
26th February 2025
42AQI
42AQI
27th February 2025
50AQI
50AQI
28th February 2025
57AQI
57AQI
1st March 2025
57AQI
57AQI
2nd March 2025
64AQI
64AQI
3rd March 2025
73AQI
73AQI
4th March 2025
80AQI
80AQI
5th March 2025
87AQI
87AQI
6th March 2025
86AQI
86AQI
7th March 2025
70AQI
70AQI
8th March 2025
67AQI
67AQI
9th March 2025
65AQI
65AQI
10th March 2025
61AQI
61AQI
11th March 2025
73AQI
73AQI
12th March 2025
64AQI
64AQI
13th March 2025
74AQI
74AQI
14th March 2025
107AQI
107AQI
15th March 2025
115AQI
115AQI
16th March 2025
88AQI
88AQI
17th March 2025
104AQI
104AQI
18th March 2025
78AQI
78AQI
19th March 2025
98AQI
98AQI
20th March 2025
102AQI
102AQI
21st March 2025
107AQI
107AQI
22nd March 2025
131AQI
131AQI
23rd March 2025
127AQI
127AQI
24th March 2025
107AQI
107AQI
25th March 2025
123AQI
123AQI
26th March 2025
115AQI
115AQI
27th March 2025
137AQI
137AQI
28th March 2025
155AQI
155AQI
29th March 2025
143AQI
143AQI
30th March 2025
100AQI
100AQI
31st March 2025
105AQI
105AQI
1st April 2025
87AQI
87AQI
2nd April 2025
100AQI
100AQI
3rd April 2025
119AQI
119AQI
4th April 2025
144AQI
144AQI
5th April 2025
141AQI
141AQI
6th April 2025
103AQI
103AQI
7th April 2025
112AQI
112AQI
8th April 2025
121AQI
121AQI
9th April 2025
118AQI
118AQI
10th April 2025
127AQI
127AQI
11th April 2025
115AQI
115AQI
12th April 2025
107AQI
107AQI
13th April 2025
108AQI
108AQI
14th April 2025
93AQI
93AQI
15th April 2025
99AQI
99AQI
16th April 2025
74AQI
74AQI
17th April 2025
71AQI
71AQI
18th April 2025
74AQI
74AQI
19th April 2025
77AQI
77AQI
20th April 2025
82AQI
82AQI
21st April 2025
70AQI
70AQI
22nd April 2025
73AQI
73AQI
23rd April 2025
83AQI
83AQI
24th April 2025
88AQI
88AQI
25th April 2025
81AQI
81AQI
26th April 2025
94AQI
94AQI
27th April 2025
106AQI
106AQI
28th April 2025
99AQI
99AQI
29th April 2025
80AQI
80AQI
30th April 2025
82AQI
82AQI
1st May 2025
85AQI
85AQI
2nd May 2025
73AQI
73AQI
3rd May 2025
64AQI
64AQI
4th May 2025
61AQI
61AQI
5th May 2025
63AQI
63AQI
6th May 2025
63AQI
63AQI
7th May 2025
67AQI
67AQI
8th May 2025
73AQI
73AQI
9th May 2025
82AQI
82AQI
10th May 2025
71AQI
71AQI
11th May 2025
64AQI
64AQI
12th May 2025
63AQI
63AQI
13th May 2025
65AQI
65AQI
14th May 2025
70AQI
70AQI
15th May 2025
55AQI
55AQI
16th May 2025
59AQI
59AQI
17th May 2025
54AQI
54AQI
18th May 2025
57AQI
57AQI
19th May 2025
55AQI
55AQI
20th May 2025
53AQI
53AQI
21st May 2025
57AQI
57AQI
22nd May 2025
56AQI
56AQI
23rd May 2025
71AQI
71AQI
24th May 2025
66AQI
66AQI
25th May 2025
67AQI
67AQI
26th May 2025
54AQI
54AQI
27th May 2025
52AQI
52AQI
28th May 2025
45AQI
45AQI
29th May 2025
48AQI
48AQI
30th May 2025
40AQI
40AQI
31st May 2025
40AQI
40AQI
1st June 2025
42AQI
42AQI
2nd June 2025
38AQI
38AQI
3rd June 2025
55AQI
55AQI
4th June 2025
59AQI
59AQI
5th June 2025
51AQI
51AQI
6th June 2025
61AQI
61AQI
7th June 2025
60AQI
60AQI
8th June 2025
57AQI
57AQI
9th June 2025
60AQI
60AQI
10th June 2025
69AQI
69AQI
11th June 2025
74AQI
74AQI
12th June 2025
67AQI
67AQI
13th June 2025
64AQI
64AQI
14th June 2025
63AQI
63AQI
15th June 2025
66AQI
66AQI
16th June 2025
51AQI
51AQI
17th June 2025
47AQI
47AQI
18th June 2025
46AQI
46AQI
19th June 2025
46AQI
46AQI
20th June 2025
50AQI
50AQI
21st June 2025
48AQI
48AQI
22nd June 2025
43AQI
43AQI
23rd June 2025
45AQI
45AQI
24th June 2025
42AQI
42AQI
25th June 2025
44AQI
44AQI
26th June 2025
44AQI
44AQI
27th June 2025
44AQI
44AQI
28th June 2025
42AQI
42AQI
29th June 2025
39AQI
39AQI
30th June 2025
38AQI
38AQI
1st July 2025
41AQI
41AQI
2nd July 2025
38AQI
38AQI
3rd July 2025
43AQI
43AQI
4th July 2025
43AQI
43AQI
5th July 2025
46AQI
46AQI
6th July 2025
46AQI
46AQI
7th July 2025
51AQI
51AQI
8th July 2025
47AQI
47AQI
9th July 2025
50AQI
50AQI
10th July 2025
51AQI
51AQI
11th July 2025
54AQI
54AQI
12th July 2025
59AQI
59AQI
13th July 2025
58AQI
58AQI
14th July 2025
55AQI
55AQI
15th July 2025
52AQI
52AQI
16th July 2025
50AQI
50AQI
17th July 2025
45AQI
45AQI
18th July 2025
53AQI
53AQI
19th July 2025
51AQI
51AQI
20th July 2025
53AQI
53AQI
21st July 2025
56AQI
56AQI
22nd July 2025
46AQI
46AQI
23rd July 2025
56AQI
56AQI
24th July 2025
48AQI
48AQI
25th July 2025
48AQI
48AQI
26th July 2025
46AQI
46AQI
27th July 2025
55AQI
55AQI
28th July 2025
62AQI
62AQI
29th July 2025
63AQI
63AQI
30th July 2025
66AQI
66AQI
31st July 2025
58AQI
58AQI
1st August 2025
55AQI
55AQI
2nd August 2025
56AQI
56AQI
3rd August 2025
52AQI
52AQI
4th August 2025
49AQI
49AQI
5th August 2025
56AQI
56AQI
6th August 2025
56AQI
56AQI
7th August 2025
50AQI
50AQI
8th August 2025
49AQI
49AQI
9th August 2025
48AQI
48AQI
10th August 2025
49AQI
49AQI
11th August 2025
52AQI
52AQI
12th August 2025
51AQI
51AQI
13th August 2025
52AQI
52AQI
14th August 2025
58AQI
58AQI
15th August 2025
58AQI
58AQI
16th August 2025
54AQI
54AQI
17th August 2025
51AQI
51AQI
18th August 2025
55AQI
55AQI
19th August 2025
51AQI
51AQI
20th August 2025
49AQI
49AQI
21st August 2025
47AQI
47AQI
22nd August 2025
49AQI
49AQI
23rd August 2025
43AQI
43AQI
24th August 2025
44AQI
44AQI
25th August 2025
50AQI
50AQI
26th August 2025
51AQI
51AQI
27th August 2025
49AQI
49AQI
28th August 2025
45AQI
45AQI
29th August 2025
45AQI
45AQI
30th August 2025
48AQI
48AQI
31st August 2025
47AQI
47AQI
1st September 2025
49AQI
49AQI
2nd September 2025
48AQI
48AQI
3rd September 2025
53AQI
53AQI
4th September 2025
57AQI
57AQI
5th September 2025
53AQI
53AQI
6th September 2025
56AQI
56AQI
7th September 2025
56AQI
56AQI
8th September 2025
56AQI
56AQI
9th September 2025
54AQI
54AQI
10th September 2025
49AQI
49AQI
11th September 2025
48AQI
48AQI
12th September 2025
45AQI
45AQI
13th September 2025
48AQI
48AQI
14th September 2025
51AQI
51AQI
15th September 2025
52AQI
52AQI
16th September 2025
50AQI
50AQI
17th September 2025
53AQI
53AQI
18th September 2025
52AQI
52AQI
19th September 2025
20th September 2025
21st September 2025
22nd September 2025
23rd September 2025
24th September 2025
25th September 2025
26th September 2025
27th September 2025
28th September 2025
29th September 2025
30th September 2025
1st October 2025
2nd October 2025
3rd October 2025
4th October 2025
5th October 2025
6th October 2025
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
115AQI
71AQI
96AQI
98AQI
61AQI
52AQI
51AQI
51AQI
52AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202573AQI
9
22
5
20
3
17
13
1
18
12
4
27
16
14
14
17
16
15
7
11
62
148
50
1
Highest AQI recorded in
January115AQI
Lowest AQI recorded in
August51AQI
202473AQI
10
5
1
8
14
1
3
22
5
5
23
3
18
12
25
6
16
15
7
23
5
25
1
1
26
3
19
12
88
165
55
6
Highest AQI recorded in
April125AQI
Lowest AQI recorded in
February29AQI
202386AQI
19
10
2
12
15
1
9
18
4
4
12
14
27
4
5
22
3
13
18
9
22
7
23
2
29
5
11
10
2
19
10
43
215
82
21
Highest AQI recorded in
April138AQI
Lowest AQI recorded in
August56AQI
202273AQI
1
29
1
17
4
1
9
21
11
6
15
15
1
24
6
15
6
1
14
13
1
3
18
10
1
23
6
1
16
11
3
76
163
61
3
Highest AQI recorded in
March106AQI
Lowest AQI recorded in
August37AQI
202180AQI
2
10
19
23
5
3
21
7
2
15
10
3
7
24
16
14
15
16
7
14
5
25
4
26
1
4
19
7
16
15
62
205
78
10
Highest AQI recorded in
March134AQI
Lowest AQI recorded in
June52AQI
202069AQI
1
4
8
1
8
8
4
17
1
20
10
20
11
26
5
18
10
2
9
20
2
3
20
7
1
23
7
98
125
31
12
Highest AQI recorded in
March149AQI
Lowest AQI recorded in
August40AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2023(Avg.)
86AQILeast Polluted Year Recorded
2020(Avg.)
69AQISewage Treatment Plant's annual 2025 AQI (73) shows an average percentage change of -4.007% (improved AQI) compared to previous years: 2020 (69), 2021 (80), 2022 (73), 2023 (86), 2024 (73).
