No 4 Middle School, Yibin, Sichuan, 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
No 4 Middle School, Yibin, Sichuan, China
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
24th Oct 2022
232AQILowest AQI recorded on
19th Oct 2023
33AQISame Day Analysis (8th October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 87 of Moderate air quality, showing improvement over 2024 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 8th Oct - 9th Oct 2025
No 4 Middle School, Yibin, Sichuan, China
AQI
Day
Night
.
6 AM8th Oct 2025
6 PM
5 AM9th Oct 2025
Day time
Avg. Highest Time
9AM8th Oct
104AQI
Avg. Lowest Time
6PM8th Oct
54AQI
Night time
Avg. Highest Time
3AM9th Oct
106AQI
Avg. Lowest Time
7PM8th Oct
59AQI
In the last 24 hours,
No 4 Middle School's AQI reached its highest point of 106 at 3 AM during the Night, while the lowest point, 54, was recorded at 6 PM during the Day between 8th Oct and 9th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
No 4 Middle School, Yibin, Sichuan, China
SepOct
09th - 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 - 09th09th
Day
Night
9th Sep 2025716 AMAQI
9th Sep 2025707 AMAQI
9th Sep 2025718 AMAQI
9th Sep 2025699 AMAQI
9th Sep 20257310 AMAQI
9th Sep 20257311 AMAQI
9th Sep 20256612 PMAQI
9th Sep 2025641 PMAQI
9th Sep 2025612 PMAQI
9th Sep 2025583 PMAQI
9th Sep 2025574 PMAQI
9th Sep 2025565 PMAQI
9th Sep 2025526 PMAQI
9th Sep 2025607 PMAQI
9th Sep 2025648 PMAQI
9th Sep 2025699 PMAQI
9th Sep 20257010 PMAQI
9th Sep 20256511 PMAQI
10th Sep 20256912 AMAQI
10th Sep 2025671 AMAQI
10th Sep 2025682 AMAQI
10th Sep 2025673 AMAQI
10th Sep 2025694 AMAQI
10th Sep 2025695 AMAQI
25°C20/32°C
10th Sep 2025686 AMAQI
10th Sep 2025687 AMAQI
10th Sep 2025728 AMAQI
10th Sep 2025789 AMAQI
10th Sep 20258610 AMAQI
10th Sep 20257211 AMAQI
10th Sep 20257612 PMAQI
10th Sep 2025741 PMAQI
10th Sep 2025692 PMAQI
10th Sep 2025743 PMAQI
10th Sep 2025724 PMAQI
10th Sep 2025685 PMAQI
10th Sep 2025666 PMAQI
10th Sep 2025687 PMAQI
10th Sep 2025708 PMAQI
10th Sep 2025739 PMAQI
10th Sep 20257310 PMAQI
10th Sep 20257411 PMAQI
11th Sep 20257212 AMAQI
11th Sep 2025701 AMAQI
11th Sep 2025682 AMAQI
11th Sep 2025683 AMAQI
11th Sep 2025694 AMAQI
11th Sep 2025695 AMAQI
26°C22/32°C
11th Sep 2025696 AMAQI
11th Sep 2025697 AMAQI
11th Sep 2025828 AMAQI
11th Sep 2025649 AMAQI
11th Sep 20256210 AMAQI
11th Sep 20256911 AMAQI
11th Sep 20256012 PMAQI
11th Sep 2025561 PMAQI
11th Sep 2025532 PMAQI
11th Sep 2025513 PMAQI
11th Sep 2025484 PMAQI
11th Sep 2025475 PMAQI
11th Sep 2025506 PMAQI
11th Sep 2025577 PMAQI
11th Sep 2025618 PMAQI
11th Sep 2025679 PMAQI
11th Sep 20257010 PMAQI
11th Sep 20256711 PMAQI
12th Sep 20256612 AMAQI
12th Sep 2025671 AMAQI
12th Sep 2025662 AMAQI
12th Sep 2025673 AMAQI
12th Sep 2025684 AMAQI
12th Sep 2025685 AMAQI
24°C23/27°C
12th Sep 2025676 AMAQI
12th Sep 2025677 AMAQI
12th Sep 2025258 AMAQI
12th Sep 2025269 AMAQI
12th Sep 20252010 AMAQI
12th Sep 20252411 AMAQI
12th Sep 20252812 PMAQI
12th Sep 2025241 PMAQI
12th Sep 2025302 PMAQI
12th Sep 2025223 PMAQI
12th Sep 2025204 PMAQI
12th Sep 2025185 PMAQI
12th Sep 2025246 PMAQI
12th Sep 2025487 PMAQI
12th Sep 2025578 PMAQI
12th Sep 2025569 PMAQI
12th Sep 20255610 PMAQI
12th Sep 20255611 PMAQI
13th Sep 20255812 AMAQI
13th Sep 2025621 AMAQI
13th Sep 2025642 AMAQI
13th Sep 2025623 AMAQI
13th Sep 2025604 AMAQI
13th Sep 2025605 AMAQI
23°C22/24°C
13th Sep 2025606 AMAQI
13th Sep 2025607 AMAQI
13th Sep 2025458 AMAQI
13th Sep 2025349 AMAQI
13th Sep 20254210 AMAQI
13th Sep 20254511 AMAQI
13th Sep 20254212 PMAQI
13th Sep 2025401 PMAQI
13th Sep 2025442 PMAQI
13th Sep 2025423 PMAQI
13th Sep 2025374 PMAQI
13th Sep 2025405 PMAQI
13th Sep 2025426 PMAQI
13th Sep 2025487 PMAQI
13th Sep 2025568 PMAQI
13th Sep 2025579 PMAQI
13th Sep 20255910 PMAQI
13th Sep 20255911 PMAQI
14th Sep 20256012 AMAQI
14th Sep 2025601 AMAQI
14th Sep 2025602 AMAQI
14th Sep 2025583 AMAQI
14th Sep 2025574 AMAQI
14th Sep 2025575 AMAQI
26°C22/32°C
14th Sep 2025586 AMAQI
14th Sep 2025577 AMAQI
14th Sep 2025728 AMAQI
14th Sep 2025719 AMAQI
14th Sep 20257010 AMAQI
14th Sep 20256811 AMAQI
14th Sep 20256012 PMAQI
14th Sep 2025581 PMAQI
14th Sep 2025542 PMAQI
14th Sep 2025563 PMAQI
14th Sep 2025534 PMAQI
14th Sep 2025535 PMAQI
14th Sep 2025546 PMAQI
14th Sep 2025547 PMAQI
14th Sep 2025588 PMAQI
14th Sep 2025599 PMAQI
14th Sep 20256410 PMAQI
14th Sep 20256911 PMAQI
15th Sep 20256812 AMAQI
15th Sep 2025581 AMAQI
15th Sep 2025582 AMAQI
15th Sep 2025593 AMAQI
15th Sep 2025594 AMAQI
15th Sep 2025595 AMAQI
27°C23/33°C
15th Sep 2025596 AMAQI
15th Sep 2025607 AMAQI
15th Sep 2025718 AMAQI
15th Sep 2025759 AMAQI
15th Sep 20258610 AMAQI
15th Sep 20257711 AMAQI
15th Sep 20256912 PMAQI
15th Sep 2025771 PMAQI
15th Sep 2025732 PMAQI
15th Sep 2025703 PMAQI
15th Sep 2025704 PMAQI
15th Sep 2025675 PMAQI
15th Sep 2025686 PMAQI
15th Sep 2025747 PMAQI
15th Sep 2025778 PMAQI
15th Sep 2025789 PMAQI
15th Sep 20258310 PMAQI
15th Sep 20258711 PMAQI
16th Sep 20258312 AMAQI
16th Sep 2025601 AMAQI
16th Sep 2025592 AMAQI
16th Sep 2025613 AMAQI
16th Sep 2025644 AMAQI
16th Sep 2025635 AMAQI
28°C24/34°C
16th Sep 2025636 AMAQI
16th Sep 2025637 AMAQI
16th Sep 20251058 AMAQI
16th Sep 20251169 AMAQI
16th Sep 202511710 AMAQI
16th Sep 202513211 AMAQI
16th Sep 202511212 PMAQI
16th Sep 2025911 PMAQI
16th Sep 2025842 PMAQI
16th Sep 2025683 PMAQI
16th Sep 2025484 PMAQI
16th Sep 2025525 PMAQI
16th Sep 2025546 PMAQI
16th Sep 2025617 PMAQI
16th Sep 2025628 PMAQI
16th Sep 2025609 PMAQI
16th Sep 20256010 PMAQI
16th Sep 20255911 PMAQI
17th Sep 20256012 AMAQI
17th Sep 2025621 AMAQI
17th Sep 2025622 AMAQI
17th Sep 2025683 AMAQI
17th Sep 2025724 AMAQI
17th Sep 2025725 AMAQI
26°C23/30°C
17th Sep 2025726 AMAQI
17th Sep 2025737 AMAQI
17th Sep 2025538 AMAQI
17th Sep 2025489 AMAQI
17th Sep 20254810 AMAQI
17th Sep 20253811 AMAQI
17th Sep 20253612 PMAQI
17th Sep 2025371 PMAQI
17th Sep 2025542 PMAQI
17th Sep 2025503 PMAQI
17th Sep 2025544 PMAQI
17th Sep 2025545 PMAQI
17th Sep 2025546 PMAQI
17th Sep 2025647 PMAQI
17th Sep 2025628 PMAQI
17th Sep 2025709 PMAQI
17th Sep 20257510 PMAQI
17th Sep 20257611 PMAQI
18th Sep 20257412 AMAQI
18th Sep 2025661 AMAQI
18th Sep 2025662 AMAQI
18th Sep 2025653 AMAQI
18th Sep 2025634 AMAQI
18th Sep 2025635 AMAQI
24°C23/25°C
18th Sep 2025636 AMAQI
18th Sep 2025637 AMAQI
18th Sep 2025298 AMAQI
18th Sep 2025209 AMAQI
18th Sep 20251910 AMAQI
18th Sep 20252011 AMAQI
18th Sep 20252212 PMAQI
18th Sep 2025241 PMAQI
18th Sep 2025272 PMAQI
18th Sep 2025203 PMAQI
18th Sep 2025204 PMAQI
18th Sep 2025215 PMAQI
18th Sep 2025286 PMAQI
18th Sep 2025367 PMAQI
18th Sep 2025568 PMAQI
18th Sep 2025589 PMAQI
18th Sep 20255910 PMAQI
18th Sep 20255811 PMAQI
19th Sep 20255812 AMAQI
19th Sep 2025641 AMAQI
19th Sep 2025642 AMAQI
19th Sep 2025623 AMAQI
19th Sep 2025584 AMAQI
19th Sep 2025595 AMAQI
22°C21/25°C
19th Sep 2025586 AMAQI
19th Sep 2025587 AMAQI
19th Sep 2025288 AMAQI
19th Sep 2025219 AMAQI
19th Sep 20252010 AMAQI
19th Sep 20252211 AMAQI
19th Sep 20253812 PMAQI
19th Sep 2025361 PMAQI
19th Sep 2025342 PMAQI
19th Sep 2025383 PMAQI
19th Sep 2025344 PMAQI
19th Sep 2025355 PMAQI
19th Sep 2025346 PMAQI
19th Sep 2025407 PMAQI
19th Sep 2025568 PMAQI
19th Sep 2025579 PMAQI
19th Sep 20255610 PMAQI
19th Sep 20255611 PMAQI
20th Sep 20255712 AMAQI
20th Sep 2025591 AMAQI
20th Sep 2025592 AMAQI
20th Sep 2025593 AMAQI
20th Sep 2025584 AMAQI
20th Sep 2025575 AMAQI
21°C20/23°C
20th Sep 2025586 AMAQI
20th Sep 2025587 AMAQI
20th Sep 2025568 AMAQI
20th Sep 2025589 AMAQI
20th Sep 20256110 AMAQI
20th Sep 20256411 AMAQI
20th Sep 20256212 PMAQI
20th Sep 2025531 PMAQI
20th Sep 2025452 PMAQI
20th Sep 2025443 PMAQI
20th Sep 2025464 PMAQI
20th Sep 2025465 PMAQI
20th Sep 2025446 PMAQI
20th Sep 2025477 PMAQI
20th Sep 2025568 PMAQI
20th Sep 2025589 PMAQI
20th Sep 20256110 PMAQI
20th Sep 20255911 PMAQI
21st Sep 20256212 AMAQI
21st Sep 2025581 AMAQI
21st Sep 2025582 AMAQI
21st Sep 2025583 AMAQI
21st Sep 2025574 AMAQI
21st Sep 2025585 AMAQI
21°C19/23°C
21st Sep 2025586 AMAQI
21st Sep 2025587 AMAQI
21st Sep 2025608 AMAQI
21st Sep 2025609 AMAQI
21st Sep 20255110 AMAQI
21st Sep 20254911 AMAQI
21st Sep 20255112 PMAQI
21st Sep 2025541 PMAQI
21st Sep 2025542 PMAQI
21st Sep 2025533 PMAQI
21st Sep 2025514 PMAQI
21st Sep 2025495 PMAQI
21st Sep 2025526 PMAQI
21st Sep 2025557 PMAQI
21st Sep 2025558 PMAQI
21st Sep 2025569 PMAQI
21st Sep 20255410 PMAQI
21st Sep 20255211 PMAQI
22nd Sep 20254912 AMAQI
22nd Sep 2025581 AMAQI
22nd Sep 2025582 AMAQI
22nd Sep 2025583 AMAQI
22nd Sep 2025574 AMAQI
22nd Sep 2025575 AMAQI
21°C19/22°C
22nd Sep 2025576 AMAQI
22nd Sep 2025577 AMAQI
22nd Sep 2025278 AMAQI
22nd Sep 2025169 AMAQI
22nd Sep 20251810 AMAQI
22nd Sep 20252611 AMAQI
22nd Sep 20251812 PMAQI
22nd Sep 2025331 PMAQI
22nd Sep 2025262 PMAQI
22nd Sep 2025403 PMAQI
22nd Sep 2025204 PMAQI
22nd Sep 2025205 PMAQI
22nd Sep 2025206 PMAQI
22nd Sep 2025317 PMAQI
22nd Sep 2025498 PMAQI
22nd Sep 2025539 PMAQI
22nd Sep 20255410 PMAQI
22nd Sep 20255311 PMAQI
23rd Sep 20255412 AMAQI
23rd Sep 2025561 AMAQI
23rd Sep 2025562 AMAQI
23rd Sep 2025553 AMAQI
23rd Sep 2025524 AMAQI
23rd Sep 2025535 AMAQI
20°C20/20°C
23rd Sep 2025526 AMAQI
23rd Sep 2025527 AMAQI
23rd Sep 2025548 AMAQI
23rd Sep 2025549 AMAQI
23rd Sep 20255310 AMAQI
23rd Sep 20253811 AMAQI
23rd Sep 20253612 PMAQI
23rd Sep 2025351 PMAQI
23rd Sep 2025322 PMAQI
23rd Sep 2025303 PMAQI
23rd Sep 2025324 PMAQI
23rd Sep 2025305 PMAQI
23rd Sep 2025326 PMAQI
23rd Sep 2025407 PMAQI
23rd Sep 2025538 PMAQI
23rd Sep 2025539 PMAQI
23rd Sep 20255410 PMAQI
23rd Sep 20255411 PMAQI
24th Sep 20255412 AMAQI
24th Sep 2025541 AMAQI
24th Sep 2025542 AMAQI
24th Sep 2025543 AMAQI
24th Sep 2025544 AMAQI
24th Sep 2025535 AMAQI
20°C19/22°C
24th Sep 2025536 AMAQI
24th Sep 2025537 AMAQI
24th Sep 2025418 AMAQI
24th Sep 2025409 AMAQI
24th Sep 20253610 AMAQI
24th Sep 20252611 AMAQI
24th Sep 20253612 PMAQI
24th Sep 2025341 PMAQI
24th Sep 2025342 PMAQI
24th Sep 2025343 PMAQI
24th Sep 2025344 PMAQI
24th Sep 2025405 PMAQI
24th Sep 2025426 PMAQI
24th Sep 2025447 PMAQI
24th Sep 2025538 PMAQI
24th Sep 2025549 PMAQI
24th Sep 20255510 PMAQI
24th Sep 20255511 PMAQI
25th Sep 20255612 AMAQI
25th Sep 2025531 AMAQI
25th Sep 2025542 AMAQI
25th Sep 2025533 AMAQI
25th Sep 2025534 AMAQI
25th Sep 2025535 AMAQI
23°C19/28°C
25th Sep 2025536 AMAQI
25th Sep 2025537 AMAQI
25th Sep 2025638 AMAQI
25th Sep 2025679 AMAQI
25th Sep 20256310 AMAQI
25th Sep 20256211 AMAQI
25th Sep 20255912 PMAQI
25th Sep 2025721 PMAQI
25th Sep 2025722 PMAQI
25th Sep 2025733 PMAQI
25th Sep 2025724 PMAQI
25th Sep 2025725 PMAQI
25th Sep 2025706 PMAQI
25th Sep 2025687 PMAQI
25th Sep 2025748 PMAQI
25th Sep 2025819 PMAQI
25th Sep 20258210 PMAQI
25th Sep 20258411 PMAQI
26th Sep 20258812 AMAQI
26th Sep 2025791 AMAQI
26th Sep 2025752 AMAQI
26th Sep 2025773 AMAQI
26th Sep 2025764 AMAQI
26th Sep 2025735 AMAQI
23°C18/28°C
26th Sep 2025706 AMAQI
26th Sep 2025737 AMAQI
26th Sep 2025698 AMAQI
26th Sep 2025749 AMAQI
26th Sep 20257010 AMAQI
26th Sep 20257211 AMAQI
26th Sep 20257312 PMAQI
26th Sep 2025741 PMAQI
26th Sep 2025722 PMAQI
26th Sep 2025773 PMAQI
26th Sep 2025694 PMAQI
26th Sep 2025715 PMAQI
26th Sep 2025716 PMAQI
26th Sep 2025667 PMAQI
26th Sep 2025728 PMAQI
26th Sep 2025739 PMAQI
26th Sep 20257010 PMAQI
26th Sep 20256711 PMAQI
27th Sep 20256712 AMAQI
27th Sep 2025671 AMAQI
27th Sep 2025672 AMAQI
27th Sep 2025673 AMAQI
27th Sep 2025674 AMAQI
27th Sep 2025675 AMAQI
19°C18/22°C
27th Sep 2025686 AMAQI
27th Sep 2025677 AMAQI
27th Sep 2025678 AMAQI
27th Sep 2025709 AMAQI
27th Sep 20257410 AMAQI
27th Sep 20257611 AMAQI
27th Sep 20257612 PMAQI
27th Sep 2025691 PMAQI
27th Sep 2025592 PMAQI
27th Sep 2025523 PMAQI
27th Sep 2025514 PMAQI
27th Sep 2025545 PMAQI
27th Sep 2025596 PMAQI
27th Sep 2025717 PMAQI
27th Sep 2025808 PMAQI
27th Sep 2025889 PMAQI
27th Sep 20259210 PMAQI
27th Sep 20258211 PMAQI
28th Sep 20258112 AMAQI
28th Sep 2025801 AMAQI
28th Sep 2025852 AMAQI
28th Sep 2025883 AMAQI
28th Sep 2025884 AMAQI
28th Sep 2025825 AMAQI
23°C19/28°C
28th Sep 2025826 AMAQI
28th Sep 2025837 AMAQI
28th Sep 2025818 AMAQI
28th Sep 2025769 AMAQI
28th Sep 20257510 AMAQI
28th Sep 20257611 AMAQI
28th Sep 20257912 PMAQI
28th Sep 2025791 PMAQI
28th Sep 2025742 PMAQI
28th Sep 2025633 PMAQI
28th Sep 2025604 PMAQI
28th Sep 2025625 PMAQI
28th Sep 2025716 PMAQI
28th Sep 2025827 PMAQI
28th Sep 2025898 PMAQI
28th Sep 2025849 PMAQI
28th Sep 20257810 PMAQI
28th Sep 20257411 PMAQI
29th Sep 20256612 AMAQI
29th Sep 2025471 AMAQI
29th Sep 2025112 AMAQI
29th Sep 2025113 AMAQI
29th Sep 2025114 AMAQI
29th Sep 2025105 AMAQI
24°C23/26°C
29th Sep 2025166 AMAQI
29th Sep 2025177 AMAQI
29th Sep 2025128 AMAQI
29th Sep 2025119 AMAQI
29th Sep 20251110 AMAQI
29th Sep 20251111 AMAQI
29th Sep 20251112 PMAQI
29th Sep 2025111 PMAQI
29th Sep 2025112 PMAQI
29th Sep 2025113 PMAQI
29th Sep 2025114 PMAQI
29th Sep 2025115 PMAQI
29th Sep 2025116 PMAQI
29th Sep 2025137 PMAQI
29th Sep 2025208 PMAQI
29th Sep 2025279 PMAQI
29th Sep 20253510 PMAQI
29th Sep 20253811 PMAQI
30th Sep 20255312 AMAQI
30th Sep 2025431 AMAQI
30th Sep 2025522 AMAQI
30th Sep 2025573 AMAQI
30th Sep 2025614 AMAQI
30th Sep 2025505 AMAQI
21°C20/24°C
30th Sep 2025566 AMAQI
30th Sep 2025547 AMAQI
30th Sep 2025538 AMAQI
30th Sep 2025489 AMAQI
30th Sep 20253610 AMAQI
30th Sep 20255011 AMAQI
30th Sep 20255312 PMAQI
30th Sep 2025591 PMAQI
30th Sep 2025592 PMAQI
30th Sep 2025623 PMAQI
30th Sep 2025644 PMAQI
30th Sep 2025685 PMAQI
30th Sep 2025696 PMAQI
30th Sep 2025827 PMAQI
30th Sep 2025788 PMAQI
30th Sep 2025729 PMAQI
30th Sep 20256510 PMAQI
30th Sep 20255511 PMAQI
1st Oct 20255112 AMAQI
1st Oct 2025411 AMAQI
1st Oct 2025392 AMAQI
1st Oct 2025563 AMAQI
1st Oct 2025584 AMAQI
1st Oct 2025535 AMAQI
21°C20/23°C
1st Oct 2025526 AMAQI
1st Oct 2025547 AMAQI
1st Oct 2025618 AMAQI
1st Oct 2025609 AMAQI
1st Oct 20255810 AMAQI
1st Oct 20256811 AMAQI
1st Oct 20256412 PMAQI
1st Oct 2025631 PMAQI
1st Oct 2025632 PMAQI
1st Oct 2025633 PMAQI
1st Oct 2025594 PMAQI
1st Oct 2025585 PMAQI
1st Oct 2025606 PMAQI
1st Oct 2025567 PMAQI
1st Oct 2025578 PMAQI
1st Oct 2025589 PMAQI
1st Oct 20256610 PMAQI
1st Oct 20257011 PMAQI
2nd Oct 20256912 AMAQI
2nd Oct 2025741 AMAQI
2nd Oct 2025792 AMAQI
2nd Oct 2025863 AMAQI
2nd Oct 2025844 AMAQI
2nd Oct 2025865 AMAQI
21°C19/24°C
2nd Oct 2025876 AMAQI
2nd Oct 2025827 AMAQI
2nd Oct 2025868 AMAQI
2nd Oct 2025869 AMAQI
2nd Oct 20259110 AMAQI
2nd Oct 20258511 AMAQI
2nd Oct 20258312 PMAQI
2nd Oct 2025811 PMAQI
2nd Oct 2025752 PMAQI
2nd Oct 2025673 PMAQI
2nd Oct 2025664 PMAQI
2nd Oct 2025625 PMAQI
2nd Oct 2025566 PMAQI
2nd Oct 2025607 PMAQI
2nd Oct 2025678 PMAQI
2nd Oct 2025839 PMAQI
2nd Oct 20258010 PMAQI
2nd Oct 20257711 PMAQI
3rd Oct 20259512 AMAQI
3rd Oct 20251011 AMAQI
3rd Oct 20251022 AMAQI
3rd Oct 2025983 AMAQI
3rd Oct 20251034 AMAQI
3rd Oct 2025945 AMAQI
23°C20/28°C
3rd Oct 2025886 AMAQI
3rd Oct 20251007 AMAQI
3rd Oct 2025948 AMAQI
3rd Oct 2025939 AMAQI
3rd Oct 20257710 AMAQI
3rd Oct 20257811 AMAQI
3rd Oct 20258012 PMAQI
3rd Oct 2025961 PMAQI
3rd Oct 2025912 PMAQI
3rd Oct 2025873 PMAQI
3rd Oct 2025904 PMAQI
3rd Oct 2025765 PMAQI
3rd Oct 2025726 PMAQI
3rd Oct 2025557 PMAQI
3rd Oct 2025778 PMAQI
3rd Oct 2025919 PMAQI
3rd Oct 202511510 PMAQI
3rd Oct 202514611 PMAQI
4th Oct 202515312 AMAQI
4th Oct 20251421 AMAQI
4th Oct 20251512 AMAQI
4th Oct 20251283 AMAQI
4th Oct 20251194 AMAQI
4th Oct 20251175 AMAQI
24°C22/27°C
4th Oct 20251026 AMAQI
4th Oct 20251057 AMAQI
4th Oct 20251148 AMAQI
4th Oct 20251079 AMAQI
4th Oct 202511310 AMAQI
4th Oct 202511811 AMAQI
4th Oct 202511712 PMAQI
4th Oct 20251001 PMAQI
4th Oct 20251002 PMAQI
4th Oct 20251013 PMAQI
4th Oct 2025884 PMAQI
4th Oct 2025825 PMAQI
4th Oct 2025876 PMAQI
4th Oct 2025867 PMAQI
4th Oct 2025848 PMAQI
4th Oct 2025879 PMAQI
4th Oct 20259310 PMAQI
4th Oct 20258811 PMAQI
5th Oct 20259312 AMAQI
5th Oct 2025891 AMAQI
5th Oct 2025852 AMAQI
5th Oct 2025873 AMAQI
5th Oct 2025834 AMAQI
5th Oct 2025855 AMAQI
24°C22/26°C
5th Oct 2025886 AMAQI
5th Oct 2025807 AMAQI
5th Oct 2025748 AMAQI
5th Oct 2025689 AMAQI
5th Oct 20257710 AMAQI
5th Oct 20257211 AMAQI
5th Oct 20255812 PMAQI
5th Oct 2025561 PMAQI
5th Oct 2025602 PMAQI
5th Oct 2025583 PMAQI
5th Oct 2025604 PMAQI
5th Oct 2025685 PMAQI
5th Oct 2025736 PMAQI
5th Oct 2025777 PMAQI
5th Oct 2025948 PMAQI
5th Oct 2025929 PMAQI
5th Oct 20259410 PMAQI
5th Oct 202510411 PMAQI
6th Oct 20259612 AMAQI
6th Oct 2025861 AMAQI
6th Oct 2025742 AMAQI
6th Oct 2025743 AMAQI
6th Oct 2025774 AMAQI
6th Oct 2025855 AMAQI
23°C22/25°C
6th Oct 2025776 AMAQI
6th Oct 2025807 AMAQI
6th Oct 2025808 AMAQI
6th Oct 2025749 AMAQI
6th Oct 20257410 AMAQI
6th Oct 20257011 AMAQI
6th Oct 20256812 PMAQI
6th Oct 2025551 PMAQI
6th Oct 2025602 PMAQI
6th Oct 2025563 PMAQI
6th Oct 2025554 PMAQI
6th Oct 2025545 PMAQI
6th Oct 2025546 PMAQI
6th Oct 2025347 PMAQI
6th Oct 2025338 PMAQI
6th Oct 2025419 PMAQI
6th Oct 20254910 PMAQI
6th Oct 20254711 PMAQI
7th Oct 20254712 AMAQI
7th Oct 2025461 AMAQI
22°C22/24°C
7th Oct 2025487 PMAQI
7th Oct 2025888 PMAQI
7th Oct 2025779 PMAQI
7th Oct 20258310 PMAQI
7th Oct 20258811 PMAQI
8th Oct 20258812 AMAQI
8th Oct 2025891 AMAQI
8th Oct 2025882 AMAQI
8th Oct 2025853 AMAQI
8th Oct 2025864 AMAQI
8th Oct 2025925 AMAQI
21°C21/22°C
8th Oct 2025916 AMAQI
8th Oct 2025927 AMAQI
8th Oct 20251018 AMAQI
8th Oct 20251049 AMAQI
8th Oct 20259910 AMAQI
8th Oct 20259211 AMAQI
8th Oct 20258612 PMAQI
8th Oct 2025691 PMAQI
8th Oct 2025662 PMAQI
8th Oct 2025653 PMAQI
8th Oct 2025564 PMAQI
8th Oct 2025555 PMAQI
8th Oct 2025546 PMAQI
8th Oct 2025597 PMAQI
8th Oct 2025658 PMAQI
8th Oct 2025769 PMAQI
8th Oct 20258710 PMAQI
8th Oct 20258011 PMAQI
9th Oct 20258512 AMAQI
9th Oct 2025901 AMAQI
9th Oct 2025962 AMAQI
9th Oct 20251063 AMAQI
9th Oct 20251064 AMAQI
9th Oct 20251045 AMAQI
24°C20/29°C
9th Oct 20251086 AMAQI
6 AM9th Oct 20251037 AMAQI
9th Oct 2025938 AMAQI
9th Oct 20251029 AMAQI
9th Oct 20259910 AMAQI
9th Oct 202511411 AMAQI
9th Oct 20259812 PMAQI
12 PM9th Oct 2025981 PMAQI
9th Oct 2025812 PMAQI
9th Oct 2025813 PMAQI
9th Oct 2025814 PMAQI
9th Oct 2025825 PMAQI
6 PM
12 AM
5 AM
--°C/°C
Day time
Avg. Highest Time
6 AM - 7 AM
68AQI
2 hours / Day
60 hours / Month
Avg. Lowest Time
4 PM - 6 PM
53AQI
3 hours / Day
90 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 6 AM to 7 AM (Avg. 68), while the lowest AQI was between 4 PM to 6 PM (Avg. 53).
Night time
Avg. Highest Time
12 AM
71AQI
1 hours / Day
30 hours / Month
Avg. Lowest Time
7 PM
56AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 12 AM (Avg. 71), while the lowest AQI was between 7 PM to 7 PM (Avg. 56).
2025 Days Vs Air Quality
No 4 Middle School, Yibin, Sichuan, China
2025
3%
9
69%
195
21%
58
7%
19
Total number of days with different AQI categories in last 282 days in 2025 (83 days remaining)
Good
9 DaysModerate
195 DaysPoor
58 DaysUnhealthy
19 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 3%
Health Risk Level:
Extreme
In 2025, 3% of 282 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
No 4 Middle School, Yibin, Sichuan, 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
157AQI
157AQI
2nd January 2025
164AQI
164AQI
3rd January 2025
175AQI
175AQI
4th January 2025
193AQI
193AQI
5th January 2025
182AQI
182AQI
6th January 2025
179AQI
179AQI
7th January 2025
169AQI
169AQI
8th January 2025
137AQI
137AQI
9th January 2025
132AQI
132AQI
10th January 2025
134AQI
134AQI
11th January 2025
102AQI
102AQI
12th January 2025
129AQI
129AQI
13th January 2025
136AQI
136AQI
14th January 2025
149AQI
149AQI
15th January 2025
146AQI
146AQI
16th January 2025
152AQI
152AQI
17th January 2025
151AQI
151AQI
18th January 2025
132AQI
132AQI
19th January 2025
136AQI
136AQI
20th January 2025
144AQI
144AQI
21st January 2025
177AQI
177AQI
22nd January 2025
170AQI
170AQI
23rd January 2025
181AQI
181AQI
24th January 2025
163AQI
163AQI
25th January 2025
93AQI
93AQI
26th January 2025
99AQI
99AQI
27th January 2025
114AQI
114AQI
28th January 2025
117AQI
117AQI
29th January 2025
164AQI
164AQI
30th January 2025
152AQI
152AQI
31st January 2025
160AQI
160AQI
1st February 2025
111AQI
111AQI
2nd February 2025
109AQI
109AQI
3rd February 2025
90AQI
90AQI
4th February 2025
99AQI
99AQI
5th February 2025
70AQI
70AQI
6th February 2025
78AQI
78AQI
7th February 2025
62AQI
62AQI
8th February 2025
76AQI
76AQI
9th February 2025
82AQI
82AQI
10th February 2025
94AQI
94AQI
11th February 2025
127AQI
127AQI
12th February 2025
92AQI
92AQI
13th February 2025
96AQI
96AQI
14th February 2025
99AQI
99AQI
15th February 2025
95AQI
95AQI
16th February 2025
119AQI
119AQI
17th February 2025
136AQI
136AQI
18th February 2025
142AQI
142AQI
19th February 2025
154AQI
154AQI
20th February 2025
113AQI
113AQI
21st February 2025
127AQI
127AQI
22nd February 2025
98AQI
98AQI
23rd February 2025
115AQI
115AQI
24th February 2025
65AQI
65AQI
25th February 2025
84AQI
84AQI
26th February 2025
76AQI
76AQI
27th February 2025
117AQI
117AQI
28th February 2025
117AQI
117AQI
1st March 2025
151AQI
151AQI
2nd March 2025
125AQI
125AQI
3rd March 2025
94AQI
94AQI
4th March 2025
111AQI
111AQI
5th March 2025
66AQI
66AQI
6th March 2025
57AQI
57AQI
7th March 2025
67AQI
67AQI
8th March 2025
68AQI
68AQI
9th March 2025
100AQI
100AQI
10th March 2025
122AQI
122AQI
11th March 2025
137AQI
137AQI
12th March 2025
112AQI
112AQI
13th March 2025
122AQI
122AQI
14th March 2025
108AQI
108AQI
15th March 2025
79AQI
79AQI
16th March 2025
70AQI
70AQI
17th March 2025
65AQI
65AQI
18th March 2025
64AQI
64AQI
19th March 2025
67AQI
67AQI
20th March 2025
77AQI
77AQI
21st March 2025
93AQI
93AQI
22nd March 2025
113AQI
113AQI
23rd March 2025
111AQI
111AQI
24th March 2025
105AQI
105AQI
25th March 2025
107AQI
107AQI
26th March 2025
114AQI
114AQI
27th March 2025
128AQI
128AQI
28th March 2025
107AQI
107AQI
29th March 2025
88AQI
88AQI
30th March 2025
77AQI
77AQI
31st March 2025
85AQI
85AQI
1st April 2025
74AQI
74AQI
2nd April 2025
87AQI
87AQI
3rd April 2025
91AQI
91AQI
4th April 2025
101AQI
101AQI
5th April 2025
100AQI
100AQI
6th April 2025
83AQI
83AQI
7th April 2025
83AQI
83AQI
8th April 2025
84AQI
84AQI
9th April 2025
98AQI
98AQI
10th April 2025
114AQI
114AQI
11th April 2025
116AQI
116AQI
12th April 2025
192AQI
192AQI
13th April 2025
143AQI
143AQI
14th April 2025
146AQI
146AQI
15th April 2025
142AQI
142AQI
16th April 2025
121AQI
121AQI
17th April 2025
109AQI
109AQI
18th April 2025
115AQI
115AQI
19th April 2025
93AQI
93AQI
20th April 2025
110AQI
110AQI
21st April 2025
101AQI
101AQI
22nd April 2025
86AQI
86AQI
23rd April 2025
97AQI
97AQI
24th April 2025
75AQI
75AQI
25th April 2025
84AQI
84AQI
26th April 2025
79AQI
79AQI
27th April 2025
75AQI
75AQI
28th April 2025
83AQI
83AQI
29th April 2025
68AQI
68AQI
30th April 2025
64AQI
64AQI
1st May 2025
71AQI
71AQI
2nd May 2025
90AQI
90AQI
3rd May 2025
98AQI
98AQI
4th May 2025
110AQI
110AQI
5th May 2025
75AQI
75AQI
6th May 2025
77AQI
77AQI
7th May 2025
72AQI
72AQI
8th May 2025
80AQI
80AQI
9th May 2025
101AQI
101AQI
10th May 2025
86AQI
86AQI
11th May 2025
82AQI
82AQI
12th May 2025
107AQI
107AQI
13th May 2025
97AQI
97AQI
14th May 2025
110AQI
110AQI
15th May 2025
105AQI
105AQI
16th May 2025
98AQI
98AQI
17th May 2025
112AQI
112AQI
18th May 2025
113AQI
113AQI
19th May 2025
89AQI
89AQI
20th May 2025
100AQI
100AQI
21st May 2025
77AQI
77AQI
22nd May 2025
83AQI
83AQI
23rd May 2025
83AQI
83AQI
24th May 2025
85AQI
85AQI
25th May 2025
87AQI
87AQI
26th May 2025
83AQI
83AQI
27th May 2025
83AQI
83AQI
28th May 2025
66AQI
66AQI
29th May 2025
70AQI
70AQI
30th May 2025
95AQI
95AQI
31st May 2025
65AQI
65AQI
1st June 2025
73AQI
73AQI
2nd June 2025
55AQI
55AQI
3rd June 2025
73AQI
73AQI
4th June 2025
80AQI
80AQI
5th June 2025
83AQI
83AQI
6th June 2025
87AQI
87AQI
7th June 2025
101AQI
101AQI
8th June 2025
78AQI
78AQI
9th June 2025
85AQI
85AQI
10th June 2025
86AQI
86AQI
11th June 2025
86AQI
86AQI
12th June 2025
82AQI
82AQI
13th June 2025
80AQI
80AQI
14th June 2025
82AQI
82AQI
15th June 2025
73AQI
73AQI
16th June 2025
73AQI
73AQI
17th June 2025
75AQI
75AQI
18th June 2025
65AQI
65AQI
19th June 2025
65AQI
65AQI
20th June 2025
66AQI
66AQI
21st June 2025
60AQI
60AQI
22nd June 2025
54AQI
54AQI
23rd June 2025
58AQI
58AQI
24th June 2025
55AQI
55AQI
25th June 2025
50AQI
50AQI
26th June 2025
53AQI
53AQI
27th June 2025
58AQI
58AQI
28th June 2025
58AQI
58AQI
29th June 2025
61AQI
61AQI
30th June 2025
52AQI
52AQI
1st July 2025
56AQI
56AQI
2nd July 2025
60AQI
60AQI
3rd July 2025
61AQI
61AQI
4th July 2025
59AQI
59AQI
5th July 2025
51AQI
51AQI
6th July 2025
56AQI
56AQI
7th July 2025
61AQI
61AQI
8th July 2025
63AQI
63AQI
9th July 2025
61AQI
61AQI
10th July 2025
58AQI
58AQI
11th July 2025
57AQI
57AQI
12th July 2025
59AQI
59AQI
13th July 2025
62AQI
62AQI
14th July 2025
65AQI
65AQI
15th July 2025
65AQI
65AQI
16th July 2025
67AQI
67AQI
17th July 2025
68AQI
68AQI
18th July 2025
70AQI
70AQI
19th July 2025
62AQI
62AQI
20th July 2025
59AQI
59AQI
21st July 2025
59AQI
59AQI
22nd July 2025
57AQI
57AQI
23rd July 2025
57AQI
57AQI
24th July 2025
52AQI
52AQI
25th July 2025
60AQI
60AQI
26th July 2025
54AQI
54AQI
27th July 2025
54AQI
54AQI
28th July 2025
56AQI
56AQI
29th July 2025
61AQI
61AQI
30th July 2025
63AQI
63AQI
31st July 2025
61AQI
61AQI
1st August 2025
63AQI
63AQI
2nd August 2025
62AQI
62AQI
3rd August 2025
66AQI
66AQI
4th August 2025
74AQI
74AQI
5th August 2025
74AQI
74AQI
6th August 2025
65AQI
65AQI
7th August 2025
64AQI
64AQI
8th August 2025
68AQI
68AQI
9th August 2025
64AQI
64AQI
10th August 2025
60AQI
60AQI
11th August 2025
54AQI
54AQI
12th August 2025
58AQI
58AQI
13th August 2025
59AQI
59AQI
14th August 2025
62AQI
62AQI
15th August 2025
63AQI
63AQI
16th August 2025
62AQI
62AQI
17th August 2025
61AQI
61AQI
18th August 2025
57AQI
57AQI
19th August 2025
56AQI
56AQI
20th August 2025
60AQI
60AQI
21st August 2025
59AQI
59AQI
22nd August 2025
57AQI
57AQI
23rd August 2025
54AQI
54AQI
24th August 2025
50AQI
50AQI
25th August 2025
52AQI
52AQI
26th August 2025
53AQI
53AQI
27th August 2025
61AQI
61AQI
28th August 2025
61AQI
61AQI
29th August 2025
54AQI
54AQI
30th August 2025
54AQI
54AQI
31st August 2025
54AQI
54AQI
1st September 2025
63AQI
63AQI
2nd September 2025
70AQI
70AQI
3rd September 2025
67AQI
67AQI
4th September 2025
83AQI
83AQI
5th September 2025
89AQI
89AQI
6th September 2025
70AQI
70AQI
7th September 2025
76AQI
76AQI
8th September 2025
71AQI
71AQI
9th September 2025
66AQI
66AQI
10th September 2025
71AQI
71AQI
11th September 2025
63AQI
63AQI
12th September 2025
47AQI
47AQI
13th September 2025
52AQI
52AQI
14th September 2025
60AQI
60AQI
15th September 2025
70AQI
70AQI
16th September 2025
72AQI
72AQI
17th September 2025
61AQI
61AQI
18th September 2025
46AQI
46AQI
19th September 2025
49AQI
49AQI
20th September 2025
55AQI
55AQI
21st September 2025
55AQI
55AQI
22nd September 2025
42AQI
42AQI
23rd September 2025
48AQI
48AQI
24th September 2025
48AQI
48AQI
25th September 2025
65AQI
65AQI
26th September 2025
76AQI
76AQI
27th September 2025
69AQI
69AQI
28th September 2025
79AQI
79AQI
29th September 2025
28AQI
28AQI
30th September 2025
58AQI
58AQI
1st October 2025
56AQI
56AQI
2nd October 2025
75AQI
75AQI
3rd October 2025
92AQI
92AQI
4th October 2025
114AQI
114AQI
5th October 2025
82AQI
82AQI
6th October 2025
78AQI
78AQI
7th October 2025
72AQI
72AQI
8th October 2025
87AQI
87AQI
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
148AQI
102AQI
96AQI
100AQI
89AQI
70AQI
60AQI
60AQI
62AQI
82AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202587AQI
2
13
16
16
11
1
16
14
1
18
11
1
24
7
1
28
1
31
1
30
7
23
7
1
9
195
58
19
Highest AQI recorded in
January148AQI
Lowest AQI recorded in
July60AQI
2024102AQI
4
7
19
1
8
9
12
1
3
20
7
1
18
10
1
2
21
8
3
24
3
10
19
1
1
22
8
1
19
6
4
3
21
5
2
1
20
9
1
17
13
23
180
103
58
1
Highest AQI recorded in
January154AQI
Lowest AQI recorded in
July61AQI
2023111AQI
1
6
23
1
4
7
12
5
1
8
14
8
1
11
18
2
10
16
3
3
23
4
5
23
3
2
26
3
3
15
12
4
16
8
3
7
7
12
6
6
16
3
21
150
104
77
9
Highest AQI recorded in
January163AQI
Lowest AQI recorded in
August72AQI
2022114AQI
1
2
9
17
1
3
14
5
6
14
11
11
7
3
19
9
1
20
8
1
1
20
3
1
5
11
11
3
7
14
6
1
6
11
13
4
8
19
14
110
108
72
2
Highest AQI recorded in
January147AQI
Lowest AQI recorded in
August76AQI
2021109AQI
3
9
16
3
5
6
16
1
1
7
10
13
14
15
1
2
12
15
2
2
18
10
2
29
5
26
7
14
9
2
18
9
2
2
5
10
13
5
11
15
23
156
104
78
4
Highest AQI recorded in
January152AQI
Lowest AQI recorded in
August68AQI
202092AQI
1
7
5
1
11
9
1
11
6
4
21
5
6
25
9
20
2
11
18
1
8
10
10
3
6
12
9
3
7
13
9
2
41
136
63
21
5
Highest AQI recorded in
November142AQI
Lowest AQI recorded in
September61AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2022(Avg.)
114AQILeast Polluted Year Recorded
2025(Avg.)
87AQINo 4 Middle School's annual 2025 AQI (87) shows an average percentage change of -16.7% (improved AQI) compared to previous years: 2020 (92), 2021 (109), 2022 (114), 2023 (111), 2024 (102).
