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HistoryAQIPM2.5PM10COSO2NO2O3

China Agricultural University, Yantai, Shandong, 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

China Agricultural University, Yantai, Shandong, China

2021
2022
2023
2024
2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
26th Sep 2025
125AQI
Lowest AQI recorded on
27th Sep 2021
8AQI

Same Day Analysis (27th September ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 81 of Moderate air quality, showing improvement over 2023 on the same day.

Download 2024 Annual Data

World Air Quality Report

Globe

Day & Night AQI Trend: 27th Sep - 28th Sep 2025

China Agricultural University, Yantai, Shandong, China

AQI
Day
Night
.

5 AM27th Sep 2025

6 PM

4 AM28th Sep 2025

Day time
Avg. Highest Time
11AM27th Sep

79AQI

Avg. Lowest Time
7AM27th Sep

41AQI

Night time
Avg. Highest Time
12AM28th Sep

79AQI

Avg. Lowest Time
6PM27th Sep

58AQI

In the last 24 hours,

China Agricultural University's AQI reached its highest point of 79 at 11 AM during the Day, while the lowest point, 41, was recorded at 7 AM during the Day between 27th Sep and 28th Sep 2025.

Day & Night AQI Trend : Aug - Sep 2025

China Agricultural University, Yantai, Shandong, China

AugSep
29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th
Day
Night
29th Aug 2025565 AMAQI
29th Aug 2025566 AMAQI
29th Aug 2025567 AMAQI
29th Aug 2025618 AMAQI
29th Aug 2025569 AMAQI
29th Aug 20256010 AMAQI
29th Aug 20255811 AMAQI
29th Aug 20255612 PMAQI
29th Aug 2025521 PMAQI
29th Aug 2025602 PMAQI
29th Aug 2025563 PMAQI
29th Aug 2025594 PMAQI
29th Aug 2025585 PMAQI
29th Aug 2025566 PMAQI
29th Aug 2025567 PMAQI
29th Aug 2025568 PMAQI
29th Aug 2025559 PMAQI
29th Aug 20255510 PMAQI
29th Aug 20255611 PMAQI
30th Aug 20255612 AMAQI
30th Aug 2025561 AMAQI
30th Aug 2025562 AMAQI
30th Aug 2025573 AMAQI
30th Aug 2025584 AMAQI

25°C23/26°C

30th Aug 2025575 AMAQI
30th Aug 2025586 AMAQI
30th Aug 2025587 AMAQI
30th Aug 2025588 AMAQI
30th Aug 2025599 AMAQI
30th Aug 20255510 AMAQI
30th Aug 20253611 AMAQI
30th Aug 20253212 PMAQI
30th Aug 2025301 PMAQI
30th Aug 2025312 PMAQI
30th Aug 2025463 PMAQI
30th Aug 2025374 PMAQI
30th Aug 2025485 PMAQI
30th Aug 2025546 PMAQI
30th Aug 2025547 PMAQI
30th Aug 2025558 PMAQI
30th Aug 2025529 PMAQI
30th Aug 20255110 PMAQI
30th Aug 20255111 PMAQI
31st Aug 20255612 AMAQI
31st Aug 2025581 AMAQI
31st Aug 2025572 AMAQI
31st Aug 2025563 AMAQI
31st Aug 2025564 AMAQI

24°C24/25°C

31st Aug 2025565 AMAQI
31st Aug 2025566 AMAQI
31st Aug 2025577 AMAQI
31st Aug 2025448 AMAQI
31st Aug 2025419 AMAQI
31st Aug 20254710 AMAQI
31st Aug 20255011 AMAQI
31st Aug 20254912 PMAQI
31st Aug 2025541 PMAQI
31st Aug 2025502 PMAQI
31st Aug 2025483 PMAQI
31st Aug 2025474 PMAQI
31st Aug 2025525 PMAQI
31st Aug 2025506 PMAQI
31st Aug 2025537 PMAQI
31st Aug 2025538 PMAQI
31st Aug 2025569 PMAQI
31st Aug 20255510 PMAQI
31st Aug 20255711 PMAQI
1st Sep 20255112 AMAQI
1st Sep 2025541 AMAQI
1st Sep 2025542 AMAQI
1st Sep 2025543 AMAQI
1st Sep 2025544 AMAQI

24°C22/26°C

1st Sep 2025555 AMAQI
1st Sep 2025576 AMAQI
1st Sep 2025567 AMAQI
1st Sep 2025568 AMAQI
1st Sep 2025599 AMAQI
1st Sep 20255610 AMAQI
1st Sep 20255611 AMAQI
1st Sep 20255812 PMAQI
1st Sep 2025551 PMAQI
1st Sep 2025592 PMAQI
1st Sep 2025563 PMAQI
1st Sep 2025504 PMAQI
1st Sep 2025595 PMAQI
1st Sep 2025566 PMAQI
1st Sep 2025567 PMAQI
1st Sep 2025608 PMAQI
1st Sep 2025659 PMAQI
1st Sep 20256010 PMAQI
1st Sep 20256011 PMAQI
2nd Sep 20255912 AMAQI
2nd Sep 2025561 AMAQI
2nd Sep 2025542 AMAQI
2nd Sep 2025543 AMAQI
2nd Sep 2025564 AMAQI

24°C22/26°C

2nd Sep 2025555 AMAQI
2nd Sep 2025566 AMAQI
2nd Sep 2025557 AMAQI
2nd Sep 2025788 AMAQI
2nd Sep 2025799 AMAQI
2nd Sep 20257810 AMAQI
2nd Sep 20258011 AMAQI
2nd Sep 20257212 PMAQI
2nd Sep 2025711 PMAQI
2nd Sep 2025692 PMAQI
2nd Sep 2025643 PMAQI
2nd Sep 2025664 PMAQI
2nd Sep 2025665 PMAQI
2nd Sep 2025726 PMAQI
2nd Sep 2025647 PMAQI
2nd Sep 2025698 PMAQI
2nd Sep 2025659 PMAQI
2nd Sep 20256710 PMAQI
2nd Sep 20257011 PMAQI
3rd Sep 20256312 AMAQI
3rd Sep 2025561 AMAQI
3rd Sep 2025552 AMAQI
3rd Sep 2025603 AMAQI
3rd Sep 2025624 AMAQI

24°C22/27°C

3rd Sep 2025625 AMAQI
3rd Sep 2025606 AMAQI
3rd Sep 2025607 AMAQI
3rd Sep 2025868 AMAQI
3rd Sep 2025749 AMAQI
3rd Sep 20256810 AMAQI
3rd Sep 20256511 AMAQI
3rd Sep 20256512 PMAQI
3rd Sep 2025621 PMAQI
3rd Sep 2025612 PMAQI
3rd Sep 2025623 PMAQI
3rd Sep 2025604 PMAQI
3rd Sep 2025645 PMAQI
3rd Sep 2025646 PMAQI
3rd Sep 2025627 PMAQI
3rd Sep 2025598 PMAQI
3rd Sep 2025619 PMAQI
3rd Sep 20256210 PMAQI
3rd Sep 20255811 PMAQI
4th Sep 20255812 AMAQI
4th Sep 2025591 AMAQI
4th Sep 2025602 AMAQI
4th Sep 2025603 AMAQI
4th Sep 2025614 AMAQI

24°C21/27°C

4th Sep 2025615 AMAQI
4th Sep 2025616 AMAQI
4th Sep 2025607 AMAQI
4th Sep 2025708 AMAQI
4th Sep 2025579 AMAQI
4th Sep 20255810 AMAQI
4th Sep 20255411 AMAQI
4th Sep 20255412 PMAQI
4th Sep 2025481 PMAQI
4th Sep 2025472 PMAQI
4th Sep 2025503 PMAQI
4th Sep 2025654 PMAQI
4th Sep 2025675 PMAQI
4th Sep 2025576 PMAQI
4th Sep 2025547 PMAQI
4th Sep 2025548 PMAQI
4th Sep 2025399 PMAQI
4th Sep 20253010 PMAQI
4th Sep 20253911 PMAQI
5th Sep 20254812 AMAQI
5th Sep 2025611 AMAQI
5th Sep 2025602 AMAQI
5th Sep 2025603 AMAQI
5th Sep 2025614 AMAQI

24°C22/26°C

5th Sep 2025595 AMAQI
5th Sep 2025606 AMAQI
5th Sep 2025607 AMAQI
5th Sep 2025668 AMAQI
5th Sep 2025669 AMAQI
5th Sep 20256110 AMAQI
5th Sep 20256011 AMAQI
5th Sep 20255612 PMAQI
5th Sep 2025601 PMAQI
5th Sep 2025562 PMAQI
5th Sep 2025563 PMAQI
5th Sep 2025474 PMAQI
5th Sep 2025545 PMAQI
5th Sep 2025586 PMAQI
5th Sep 2025547 PMAQI
5th Sep 2025588 PMAQI
5th Sep 2025599 PMAQI
5th Sep 20256210 PMAQI
5th Sep 20256211 PMAQI
6th Sep 20255812 AMAQI
6th Sep 2025531 AMAQI
6th Sep 2025602 AMAQI
6th Sep 2025583 AMAQI
6th Sep 2025594 AMAQI

25°C24/28°C

6th Sep 2025605 AMAQI
6th Sep 2025626 AMAQI
6th Sep 2025617 AMAQI
6th Sep 2025478 AMAQI
6th Sep 2025449 AMAQI
6th Sep 20254810 AMAQI
6th Sep 20254911 AMAQI
6th Sep 20256412 PMAQI
6th Sep 2025611 PMAQI
6th Sep 2025422 PMAQI
6th Sep 2025483 PMAQI
6th Sep 2025544 PMAQI
6th Sep 2025485 PMAQI
6th Sep 2025526 PMAQI
6th Sep 2025597 PMAQI
6th Sep 2025658 PMAQI
6th Sep 2025699 PMAQI
6th Sep 20256310 PMAQI
6th Sep 20256811 PMAQI
7th Sep 20256512 AMAQI
7th Sep 2025581 AMAQI
7th Sep 2025582 AMAQI
7th Sep 2025633 AMAQI
7th Sep 2025624 AMAQI

24°C23/25°C

7th Sep 2025625 AMAQI
7th Sep 2025646 AMAQI
7th Sep 2025647 AMAQI
7th Sep 2025628 AMAQI
7th Sep 2025599 AMAQI
7th Sep 20255910 AMAQI
7th Sep 20255411 AMAQI
7th Sep 20255712 PMAQI
7th Sep 2025561 PMAQI
7th Sep 2025592 PMAQI
7th Sep 2025583 PMAQI
7th Sep 2025584 PMAQI
7th Sep 2025585 PMAQI
7th Sep 2025526 PMAQI
7th Sep 2025587 PMAQI
7th Sep 2025658 PMAQI
7th Sep 2025649 PMAQI
7th Sep 20256210 PMAQI
7th Sep 20256111 PMAQI
8th Sep 20256012 AMAQI
8th Sep 2025591 AMAQI
8th Sep 2025592 AMAQI
8th Sep 2025633 AMAQI
8th Sep 2025674 AMAQI

24°C21/28°C

8th Sep 2025665 AMAQI
8th Sep 2025656 AMAQI
8th Sep 2025647 AMAQI
8th Sep 2025668 AMAQI
8th Sep 2025749 AMAQI
8th Sep 20257510 AMAQI
8th Sep 20257011 AMAQI
8th Sep 20256112 PMAQI
8th Sep 2025641 PMAQI
8th Sep 2025602 PMAQI
8th Sep 2025833 PMAQI
8th Sep 2025704 PMAQI
8th Sep 2025635 PMAQI
8th Sep 2025596 PMAQI
8th Sep 2025617 PMAQI
8th Sep 2025668 PMAQI
8th Sep 2025709 PMAQI
8th Sep 20256510 PMAQI
8th Sep 20256711 PMAQI
9th Sep 20256912 AMAQI
9th Sep 2025641 AMAQI
9th Sep 2025632 AMAQI
9th Sep 2025663 AMAQI
9th Sep 2025684 AMAQI

23°C20/26°C

9th Sep 2025655 AMAQI
9th Sep 2025666 AMAQI
9th Sep 2025667 AMAQI
9th Sep 2025858 AMAQI
9th Sep 2025869 AMAQI
9th Sep 20258010 AMAQI
9th Sep 20258311 AMAQI
9th Sep 20257612 PMAQI
9th Sep 2025751 PMAQI
9th Sep 2025872 PMAQI
9th Sep 20251023 PMAQI
9th Sep 2025934 PMAQI
9th Sep 2025795 PMAQI
9th Sep 2025916 PMAQI
9th Sep 2025757 PMAQI
9th Sep 2025768 PMAQI
9th Sep 2025809 PMAQI
9th Sep 20257510 PMAQI
9th Sep 20256511 PMAQI
10th Sep 20256812 AMAQI
10th Sep 2025671 AMAQI
10th Sep 2025662 AMAQI
10th Sep 2025683 AMAQI
10th Sep 2025714 AMAQI

24°C21/27°C

10th Sep 2025705 AMAQI
10th Sep 2025696 AMAQI
10th Sep 2025707 AMAQI
10th Sep 2025718 AMAQI
10th Sep 2025739 AMAQI
10th Sep 20256710 AMAQI
10th Sep 20256611 AMAQI
10th Sep 20256712 PMAQI
10th Sep 2025661 PMAQI
10th Sep 2025652 PMAQI
10th Sep 2025653 PMAQI
10th Sep 2025664 PMAQI
10th Sep 2025685 PMAQI
10th Sep 2025706 PMAQI
10th Sep 2025697 PMAQI
10th Sep 2025758 PMAQI
10th Sep 2025689 PMAQI
10th Sep 20257410 PMAQI
10th Sep 20257211 PMAQI
11th Sep 20257412 AMAQI
11th Sep 2025691 AMAQI
11th Sep 2025682 AMAQI
11th Sep 2025683 AMAQI
11th Sep 2025684 AMAQI

24°C21/28°C

11th Sep 2025685 AMAQI
11th Sep 2025696 AMAQI
11th Sep 2025687 AMAQI
11th Sep 2025708 AMAQI
11th Sep 2025739 AMAQI
11th Sep 20257810 AMAQI
11th Sep 20257811 AMAQI
11th Sep 20257612 PMAQI
11th Sep 2025701 PMAQI
11th Sep 2025622 PMAQI
11th Sep 2025563 PMAQI
11th Sep 2025524 PMAQI
11th Sep 2025685 PMAQI
11th Sep 2025626 PMAQI
11th Sep 2025667 PMAQI
11th Sep 2025678 PMAQI
11th Sep 2025719 PMAQI
11th Sep 20257210 PMAQI
11th Sep 20257011 PMAQI
12th Sep 20256912 AMAQI
12th Sep 2025661 AMAQI
12th Sep 2025672 AMAQI
12th Sep 2025683 AMAQI
12th Sep 2025694 AMAQI

25°C22/28°C

12th Sep 2025685 AMAQI
12th Sep 2025686 AMAQI
12th Sep 2025687 AMAQI
12th Sep 2025708 AMAQI
12th Sep 2025669 AMAQI
12th Sep 20256210 AMAQI
12th Sep 20257211 AMAQI
12th Sep 20256812 PMAQI
12th Sep 2025581 PMAQI
12th Sep 2025562 PMAQI
12th Sep 2025513 PMAQI
12th Sep 2025534 PMAQI
12th Sep 2025525 PMAQI
12th Sep 2025436 PMAQI
12th Sep 2025527 PMAQI
12th Sep 2025588 PMAQI
12th Sep 2025569 PMAQI
12th Sep 20255910 PMAQI
12th Sep 20255811 PMAQI
13th Sep 20255912 AMAQI
13th Sep 2025631 AMAQI
13th Sep 2025682 AMAQI
13th Sep 2025683 AMAQI
13th Sep 2025694 AMAQI

23°C22/24°C

13th Sep 2025685 AMAQI
13th Sep 2025676 AMAQI
13th Sep 2025707 AMAQI
13th Sep 2025668 AMAQI
13th Sep 2025699 AMAQI
13th Sep 20257010 AMAQI
13th Sep 20256411 AMAQI
13th Sep 20254312 PMAQI
13th Sep 2025471 PMAQI
13th Sep 2025442 PMAQI
13th Sep 2025393 PMAQI
13th Sep 2025504 PMAQI
13th Sep 2025525 PMAQI
13th Sep 2025566 PMAQI
13th Sep 2025597 PMAQI
13th Sep 2025648 PMAQI
13th Sep 2025689 PMAQI
13th Sep 20256710 PMAQI
13th Sep 20256311 PMAQI
14th Sep 20257212 AMAQI
14th Sep 2025671 AMAQI
14th Sep 2025662 AMAQI
14th Sep 2025693 AMAQI
14th Sep 2025684 AMAQI

23°C22/26°C

14th Sep 2025675 AMAQI
14th Sep 2025706 AMAQI
14th Sep 2025687 AMAQI
14th Sep 2025648 AMAQI
14th Sep 2025709 AMAQI
14th Sep 20256610 AMAQI
14th Sep 20256511 AMAQI
14th Sep 20256412 PMAQI
14th Sep 2025671 PMAQI
14th Sep 2025662 PMAQI
14th Sep 2025653 PMAQI
14th Sep 2025674 PMAQI
14th Sep 2025595 PMAQI
14th Sep 2025646 PMAQI
14th Sep 2025657 PMAQI
14th Sep 2025698 PMAQI
14th Sep 2025689 PMAQI
14th Sep 20256710 PMAQI
14th Sep 20256511 PMAQI
15th Sep 20256912 AMAQI
15th Sep 2025701 AMAQI
15th Sep 2025682 AMAQI
15th Sep 2025693 AMAQI
15th Sep 2025704 AMAQI

25°C21/29°C

15th Sep 2025705 AMAQI
15th Sep 2025716 AMAQI
15th Sep 2025707 AMAQI
15th Sep 2025788 AMAQI
15th Sep 20251049 AMAQI
15th Sep 20257710 AMAQI
15th Sep 20255911 AMAQI
15th Sep 20256012 PMAQI
15th Sep 2025421 PMAQI
15th Sep 2025562 PMAQI
15th Sep 2025513 PMAQI
15th Sep 2025414 PMAQI
15th Sep 2025385 PMAQI
15th Sep 2025566 PMAQI
15th Sep 2025567 PMAQI
15th Sep 2025578 PMAQI
15th Sep 2025589 PMAQI
15th Sep 20256110 PMAQI
15th Sep 20256511 PMAQI
16th Sep 20256012 AMAQI
16th Sep 2025681 AMAQI
16th Sep 2025692 AMAQI
16th Sep 2025683 AMAQI
16th Sep 2025684 AMAQI

25°C22/29°C

16th Sep 2025695 AMAQI
16th Sep 2025686 AMAQI
16th Sep 2025697 AMAQI
16th Sep 2025618 AMAQI
16th Sep 2025599 AMAQI
16th Sep 20253710 AMAQI
16th Sep 20252811 AMAQI
16th Sep 20254412 PMAQI
16th Sep 2025561 PMAQI
16th Sep 2025672 PMAQI
16th Sep 2025723 PMAQI
16th Sep 2025844 PMAQI
16th Sep 2025805 PMAQI
16th Sep 2025566 PMAQI
16th Sep 2025537 PMAQI
16th Sep 2025588 PMAQI
16th Sep 2025589 PMAQI
16th Sep 20255510 PMAQI
16th Sep 20255711 PMAQI
17th Sep 20255712 AMAQI
17th Sep 2025641 AMAQI
17th Sep 2025652 AMAQI
17th Sep 2025633 AMAQI
17th Sep 2025624 AMAQI

24°C20/27°C

17th Sep 2025625 AMAQI
17th Sep 2025626 AMAQI
17th Sep 2025627 AMAQI
17th Sep 2025408 AMAQI
17th Sep 2025229 AMAQI
17th Sep 20252010 AMAQI
17th Sep 20252311 AMAQI
17th Sep 20252612 PMAQI
17th Sep 2025221 PMAQI
17th Sep 2025192 PMAQI
17th Sep 2025183 PMAQI
17th Sep 2025234 PMAQI
17th Sep 2025205 PMAQI
17th Sep 2025216 PMAQI
17th Sep 2025467 PMAQI
17th Sep 2025548 PMAQI
17th Sep 2025549 PMAQI
17th Sep 20255410 PMAQI
17th Sep 20255411 PMAQI
18th Sep 20255512 AMAQI
18th Sep 2025591 AMAQI
18th Sep 2025602 AMAQI
18th Sep 2025593 AMAQI
18th Sep 2025564 AMAQI

19°C17/21°C

18th Sep 2025565 AMAQI
18th Sep 2025556 AMAQI
18th Sep 2025567 AMAQI
18th Sep 2025288 AMAQI
18th Sep 2025199 AMAQI
18th Sep 20251910 AMAQI
18th Sep 20252411 AMAQI
18th Sep 20253012 PMAQI
18th Sep 2025331 PMAQI
18th Sep 2025292 PMAQI
18th Sep 2025293 PMAQI
18th Sep 2025294 PMAQI
18th Sep 2025325 PMAQI
18th Sep 2025336 PMAQI
18th Sep 2025427 PMAQI
18th Sep 2025538 PMAQI
18th Sep 2025539 PMAQI
18th Sep 20255410 PMAQI
18th Sep 20255411 PMAQI
19th Sep 20255412 AMAQI
19th Sep 2025571 AMAQI
19th Sep 2025572 AMAQI
19th Sep 2025563 AMAQI
19th Sep 2025544 AMAQI

21°C21/23°C

19th Sep 2025545 AMAQI
19th Sep 2025546 AMAQI
19th Sep 2025547 AMAQI
19th Sep 2025358 AMAQI
19th Sep 2025239 AMAQI
19th Sep 20252410 AMAQI
19th Sep 20253111 AMAQI
19th Sep 20253912 PMAQI
19th Sep 2025391 PMAQI
19th Sep 2025372 PMAQI
19th Sep 2025403 PMAQI
19th Sep 2025394 PMAQI
19th Sep 2025365 PMAQI
19th Sep 2025406 PMAQI
19th Sep 2025437 PMAQI
19th Sep 2025528 PMAQI
19th Sep 2025539 PMAQI
19th Sep 20255310 PMAQI
19th Sep 20255411 PMAQI
20th Sep 20255412 AMAQI
20th Sep 2025551 AMAQI
20th Sep 2025552 AMAQI
20th Sep 2025553 AMAQI
20th Sep 2025544 AMAQI

17°C15/19°C

20th Sep 2025545 AMAQI
20th Sep 2025546 AMAQI
20th Sep 2025547 AMAQI
20th Sep 2025628 AMAQI
20th Sep 2025679 AMAQI
20th Sep 20254510 AMAQI
20th Sep 20254811 AMAQI
20th Sep 20254812 PMAQI
20th Sep 2025501 PMAQI
20th Sep 2025452 PMAQI
20th Sep 2025443 PMAQI
20th Sep 2025444 PMAQI
20th Sep 2025445 PMAQI
20th Sep 2025476 PMAQI
20th Sep 2025527 PMAQI
20th Sep 2025548 PMAQI
20th Sep 2025549 PMAQI
20th Sep 20255510 PMAQI
20th Sep 20255611 PMAQI
21st Sep 20255712 AMAQI
21st Sep 2025561 AMAQI
21st Sep 2025542 AMAQI
21st Sep 2025543 AMAQI
21st Sep 2025554 AMAQI

20°C17/22°C

21st Sep 2025545 AMAQI
21st Sep 2025546 AMAQI
21st Sep 2025547 AMAQI
21st Sep 2025638 AMAQI
21st Sep 2025639 AMAQI
21st Sep 20256510 AMAQI
21st Sep 20255911 AMAQI
21st Sep 20255812 PMAQI
21st Sep 2025551 PMAQI
21st Sep 2025522 PMAQI
21st Sep 2025533 PMAQI
21st Sep 2025504 PMAQI
21st Sep 2025485 PMAQI
21st Sep 2025426 PMAQI
21st Sep 2025477 PMAQI
21st Sep 2025558 PMAQI
21st Sep 2025559 PMAQI
21st Sep 20255410 PMAQI
21st Sep 20255411 PMAQI
22nd Sep 20255312 AMAQI
22nd Sep 2025551 AMAQI
22nd Sep 2025562 AMAQI
22nd Sep 2025563 AMAQI
22nd Sep 2025574 AMAQI

22°C20/23°C

22nd Sep 2025565 AMAQI
22nd Sep 2025566 AMAQI
22nd Sep 2025567 AMAQI
22nd Sep 2025408 AMAQI
22nd Sep 2025449 AMAQI
22nd Sep 20253810 AMAQI
22nd Sep 20253911 AMAQI
22nd Sep 20254012 PMAQI
22nd Sep 2025401 PMAQI
22nd Sep 2025392 PMAQI
22nd Sep 2025373 PMAQI
22nd Sep 2025344 PMAQI
22nd Sep 2025395 PMAQI
22nd Sep 2025436 PMAQI
22nd Sep 2025427 PMAQI
22nd Sep 2025548 PMAQI
22nd Sep 2025549 PMAQI
22nd Sep 20255410 PMAQI
22nd Sep 20255411 PMAQI
23rd Sep 20255412 AMAQI
23rd Sep 2025541 AMAQI
23rd Sep 2025552 AMAQI
23rd Sep 2025553 AMAQI
23rd Sep 2025544 AMAQI

21°C19/23°C

23rd Sep 2025545 AMAQI
23rd Sep 2025546 AMAQI
23rd Sep 2025537 AMAQI
23rd Sep 2025328 AMAQI
23rd Sep 2025229 AMAQI
23rd Sep 20252910 AMAQI
23rd Sep 20253411 AMAQI
23rd Sep 20254012 PMAQI
23rd Sep 2025401 PMAQI
23rd Sep 2025342 PMAQI
23rd Sep 2025313 PMAQI
23rd Sep 2025314 PMAQI
23rd Sep 2025295 PMAQI
23rd Sep 2025326 PMAQI
23rd Sep 2025367 PMAQI
23rd Sep 2025508 PMAQI
23rd Sep 2025499 PMAQI
23rd Sep 20255010 PMAQI
23rd Sep 20255011 PMAQI
24th Sep 20255012 AMAQI
24th Sep 2025541 AMAQI
24th Sep 2025542 AMAQI
24th Sep 2025543 AMAQI
24th Sep 2025524 AMAQI

20°C19/20°C

24th Sep 2025545 AMAQI
24th Sep 2025536 AMAQI
24th Sep 2025527 AMAQI
24th Sep 2025348 AMAQI
24th Sep 2025419 AMAQI
24th Sep 20253410 AMAQI
24th Sep 20252611 AMAQI
24th Sep 20254212 PMAQI
24th Sep 2025481 PMAQI
24th Sep 2025562 PMAQI
24th Sep 2025583 PMAQI
24th Sep 2025584 PMAQI
24th Sep 2025585 PMAQI
24th Sep 2025616 PMAQI
24th Sep 2025607 PMAQI
24th Sep 2025588 PMAQI
24th Sep 2025599 PMAQI
24th Sep 20255910 PMAQI
24th Sep 20256011 PMAQI
25th Sep 20255712 AMAQI
25th Sep 2025531 AMAQI
25th Sep 2025522 AMAQI
25th Sep 2025523 AMAQI
25th Sep 2025524 AMAQI

21°C19/23°C

25th Sep 2025525 AMAQI
25th Sep 2025526 AMAQI
25th Sep 2025517 AMAQI
25th Sep 2025648 AMAQI
25th Sep 2025799 AMAQI
25th Sep 20257810 AMAQI
25th Sep 20258211 AMAQI
25th Sep 20257512 PMAQI
25th Sep 2025891 PMAQI
25th Sep 2025932 PMAQI
25th Sep 2025933 PMAQI
25th Sep 2025934 PMAQI
25th Sep 20251095 PMAQI
25th Sep 20251246 PMAQI
25th Sep 20251267 PMAQI
25th Sep 20251248 PMAQI
25th Sep 20251289 PMAQI
25th Sep 202514010 PMAQI
25th Sep 202514711 PMAQI
26th Sep 202514212 AMAQI
26th Sep 20251321 AMAQI
26th Sep 20251262 AMAQI
26th Sep 20251143 AMAQI
26th Sep 20251064 AMAQI

21°C18/24°C

26th Sep 20251025 AMAQI
26th Sep 2025976 AMAQI
26th Sep 2025817 AMAQI
26th Sep 20251088 AMAQI
26th Sep 20251149 AMAQI
26th Sep 202511610 AMAQI
26th Sep 202512211 AMAQI
26th Sep 202513612 PMAQI
26th Sep 20251371 PMAQI
26th Sep 20251372 PMAQI
26th Sep 20251333 PMAQI
26th Sep 20251414 PMAQI
26th Sep 20251445 PMAQI
26th Sep 20251346 PMAQI
26th Sep 20251407 PMAQI
26th Sep 20251498 PMAQI
26th Sep 20251389 PMAQI
26th Sep 202510110 PMAQI
26th Sep 20259611 PMAQI
27th Sep 20259312 AMAQI
27th Sep 2025721 AMAQI
27th Sep 2025522 AMAQI
27th Sep 2025463 AMAQI
27th Sep 2025514 AMAQI

22°C20/24°C

27th Sep 2025535 AMAQI
27th Sep 2025496 AMAQI
27th Sep 2025417 AMAQI
27th Sep 2025528 AMAQI
27th Sep 2025659 AMAQI
27th Sep 20257210 AMAQI
27th Sep 20257911 AMAQI
27th Sep 20257212 PMAQI
27th Sep 2025641 PMAQI
27th Sep 2025572 PMAQI
27th Sep 2025543 PMAQI
27th Sep 2025554 PMAQI
27th Sep 2025565 PMAQI
27th Sep 2025586 PMAQI
27th Sep 2025657 PMAQI
27th Sep 2025698 PMAQI
27th Sep 2025739 PMAQI
27th Sep 20257110 PMAQI
27th Sep 20257511 PMAQI
28th Sep 20257912 AMAQI
28th Sep 2025721 AMAQI
28th Sep 2025702 AMAQI
28th Sep 2025643 AMAQI
28th Sep 2025624 AMAQI

21°C20/23°C

28th Sep 2025585 AMAQI
5 AM
28th Sep 2025626 AMAQI
28th Sep 2025607 AMAQI
28th Sep 2025588 AMAQI
28th Sep 2025599 AMAQI
28th Sep 20256410 AMAQI
28th Sep 20257511 AMAQI
11 AM
28th Sep 20258512 PMAQI
28th Sep 2025941 PMAQI
28th Sep 20251012 PMAQI
28th Sep 20251053 PMAQI
28th Sep 20251064 PMAQI
28th Sep 2025975 PMAQI
6 PM
11 PM
4 AM

--°C/°C

Day time
Avg. Highest Time
5 AM - 9 AM

61AQI

5 hours / Day
150 hours / Month
Avg. Lowest Time
10 AM - 6 PM

59AQI

9 hours / Day
270 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 9 AM (Avg. 61), while the lowest AQI was between 10 AM to 6 PM (Avg. 59).
Night time
Avg. Highest Time
8 PM - 11 PM

65AQI

4 hours / Day
120 hours / Month
Avg. Lowest Time
12 AM - 7 PM

62AQI

6 hours / Day
180 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 8 PM to 11 PM (Avg. 65), while the lowest AQI was between 12 AM to 7 PM (Avg. 62).

2025 Days Vs Air Quality

China Agricultural University, Yantai, Shandong, China

2025

13%

36

75%

203

11%

30

0.3%

1

Total number of days with different AQI categories in last 271 days in 2025 (94 days remaining)

Good
36 Days
Moderate
203 Days
Poor
30 Days
Unhealthy
1 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 13%

Health Risk Level:

Extreme

In 2025, 13% of 271 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

China Agricultural University, Yantai, Shandong, 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
105AQI
2nd January 2025
65AQI
3rd January 2025
75AQI
4th January 2025
109AQI
5th January 2025
150AQI
6th January 2025
66AQI
7th January 2025
84AQI
8th January 2025
48AQI
9th January 2025
47AQI
10th January 2025
54AQI
11th January 2025
77AQI
12th January 2025
98AQI
13th January 2025
131AQI
14th January 2025
94AQI
15th January 2025
70AQI
16th January 2025
87AQI
17th January 2025
79AQI
18th January 2025
128AQI
19th January 2025
124AQI
20th January 2025
102AQI
21st January 2025
152AQI
22nd January 2025
78AQI
23rd January 2025
104AQI
24th January 2025
75AQI
25th January 2025
111AQI
26th January 2025
108AQI
27th January 2025
69AQI
28th January 2025
68AQI
29th January 2025
93AQI
30th January 2025
72AQI
31st January 2025
75AQI
1st February 2025
85AQI
2nd February 2025
112AQI
3rd February 2025
61AQI
4th February 2025
63AQI
5th February 2025
51AQI
6th February 2025
67AQI
7th February 2025
46AQI
8th February 2025
44AQI
9th February 2025
59AQI
10th February 2025
95AQI
11th February 2025
67AQI
12th February 2025
71AQI
13th February 2025
85AQI
14th February 2025
115AQI
15th February 2025
86AQI
16th February 2025
88AQI
17th February 2025
52AQI
18th February 2025
65AQI
19th February 2025
57AQI
20th February 2025
68AQI
21st February 2025
65AQI
22nd February 2025
49AQI
23rd February 2025
61AQI
24th February 2025
64AQI
25th February 2025
109AQI
26th February 2025
114AQI
27th February 2025
142AQI
28th February 2025
149AQI
1st March 2025
130AQI
2nd March 2025
129AQI
3rd March 2025
74AQI
4th March 2025
66AQI
5th March 2025
52AQI
6th March 2025
67AQI
7th March 2025
86AQI
8th March 2025
125AQI
9th March 2025
140AQI
10th March 2025
134AQI
11th March 2025
98AQI
12th March 2025
108AQI
13th March 2025
75AQI
14th March 2025
75AQI
15th March 2025
83AQI
16th March 2025
60AQI
17th March 2025
74AQI
18th March 2025
61AQI
19th March 2025
96AQI
20th March 2025
82AQI
21st March 2025
72AQI
22nd March 2025
78AQI
23rd March 2025
97AQI
24th March 2025
108AQI
25th March 2025
117AQI
26th March 2025
120AQI
27th March 2025
94AQI
28th March 2025
56AQI
29th March 2025
57AQI
30th March 2025
70AQI
31st March 2025
96AQI
1st April 2025
96AQI
2nd April 2025
74AQI
3rd April 2025
89AQI
4th April 2025
71AQI
5th April 2025
70AQI
6th April 2025
71AQI
7th April 2025
107AQI
8th April 2025
65AQI
9th April 2025
75AQI
10th April 2025
81AQI
11th April 2025
70AQI
12th April 2025
86AQI
13th April 2025
58AQI
14th April 2025
46AQI
15th April 2025
68AQI
16th April 2025
88AQI
17th April 2025
107AQI
18th April 2025
75AQI
19th April 2025
83AQI
20th April 2025
80AQI
21st April 2025
70AQI
22nd April 2025
62AQI
23rd April 2025
69AQI
24th April 2025
57AQI
25th April 2025
54AQI
26th April 2025
71AQI
27th April 2025
75AQI
28th April 2025
62AQI
29th April 2025
81AQI
30th April 2025
79AQI
1st May 2025
70AQI
2nd May 2025
58AQI
3rd May 2025
50AQI
4th May 2025
60AQI
5th May 2025
51AQI
6th May 2025
52AQI
7th May 2025
69AQI
8th May 2025
56AQI
9th May 2025
58AQI
10th May 2025
62AQI
11th May 2025
68AQI
12th May 2025
79AQI
13th May 2025
80AQI
14th May 2025
85AQI
15th May 2025
79AQI
16th May 2025
69AQI
17th May 2025
67AQI
18th May 2025
63AQI
19th May 2025
83AQI
20th May 2025
96AQI
21st May 2025
70AQI
22nd May 2025
113AQI
23rd May 2025
72AQI
24th May 2025
84AQI
25th May 2025
79AQI
26th May 2025
96AQI
27th May 2025
104AQI
28th May 2025
77AQI
29th May 2025
78AQI
30th May 2025
81AQI
31st May 2025
82AQI
1st June 2025
82AQI
2nd June 2025
68AQI
3rd June 2025
54AQI
4th June 2025
46AQI
5th June 2025
66AQI
6th June 2025
69AQI
7th June 2025
65AQI
8th June 2025
61AQI
9th June 2025
51AQI
10th June 2025
53AQI
11th June 2025
52AQI
12th June 2025
49AQI
13th June 2025
42AQI
14th June 2025
40AQI
15th June 2025
47AQI
16th June 2025
54AQI
17th June 2025
52AQI
18th June 2025
59AQI
19th June 2025
53AQI
20th June 2025
54AQI
21st June 2025
60AQI
22nd June 2025
58AQI
23rd June 2025
58AQI
24th June 2025
61AQI
25th June 2025
61AQI
26th June 2025
65AQI
27th June 2025
65AQI
28th June 2025
69AQI
29th June 2025
62AQI
30th June 2025
59AQI
1st July 2025
60AQI
2nd July 2025
54AQI
3rd July 2025
55AQI
4th July 2025
59AQI
5th July 2025
60AQI
6th July 2025
62AQI
7th July 2025
60AQI
8th July 2025
54AQI
9th July 2025
62AQI
10th July 2025
67AQI
11th July 2025
61AQI
12th July 2025
59AQI
13th July 2025
60AQI
14th July 2025
55AQI
15th July 2025
53AQI
16th July 2025
54AQI
17th July 2025
53AQI
18th July 2025
53AQI
19th July 2025
53AQI
20th July 2025
47AQI
21st July 2025
46AQI
22nd July 2025
45AQI
23rd July 2025
42AQI
24th July 2025
44AQI
25th July 2025
48AQI
26th July 2025
48AQI
27th July 2025
47AQI
28th July 2025
47AQI
29th July 2025
43AQI
30th July 2025
45AQI
31st July 2025
47AQI
1st August 2025
56AQI
2nd August 2025
57AQI
3rd August 2025
57AQI
4th August 2025
50AQI
5th August 2025
53AQI
6th August 2025
50AQI
7th August 2025
51AQI
8th August 2025
48AQI
9th August 2025
46AQI
10th August 2025
46AQI
11th August 2025
54AQI
12th August 2025
56AQI
13th August 2025
52AQI
14th August 2025
54AQI
15th August 2025
49AQI
16th August 2025
47AQI
17th August 2025
54AQI
18th August 2025
60AQI
19th August 2025
58AQI
20th August 2025
57AQI
21st August 2025
57AQI
22nd August 2025
56AQI
23rd August 2025
62AQI
24th August 2025
60AQI
25th August 2025
58AQI
26th August 2025
54AQI
27th August 2025
58AQI
28th August 2025
55AQI
29th August 2025
56AQI
30th August 2025
52AQI
31st August 2025
53AQI
1st September 2025
56AQI
2nd September 2025
64AQI
3rd September 2025
63AQI
4th September 2025
54AQI
5th September 2025
55AQI
6th September 2025
57AQI
7th September 2025
61AQI
8th September 2025
65AQI
9th September 2025
75AQI
10th September 2025
69AQI
11th September 2025
69AQI
12th September 2025
62AQI
13th September 2025
60AQI
14th September 2025
68AQI
15th September 2025
62AQI
16th September 2025
60AQI
17th September 2025
46AQI
18th September 2025
46AQI
19th September 2025
48AQI
20th September 2025
52AQI
21st September 2025
55AQI
22nd September 2025
49AQI
23rd September 2025
46AQI
24th September 2025
52AQI
25th September 2025
87AQI
26th September 2025
125AQI
27th September 2025
81AQI
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

90AQI

78AQI

90AQI

75AQI

74AQI

58AQI

53AQI

54AQI

62AQI

No. of days

Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days

202571AQI

2
18
10
1
3
19
6
22
9
1
27
2
1
28
2
5
25
12
19
7
24
5
21
1
36
203
30
1

Highest AQI recorded in

January

90AQI

Lowest AQI recorded in

July

53AQI

202476AQI

5
13
7
6
5
12
7
4
1
1
13
13
3
1
3
20
7
4
22
5
12
16
2
13
12
6
9
22
16
14
13
13
4
1
7
17
5
1
3
23
5
91
197
61
15
2

Highest AQI recorded in

March

105AQI

Lowest AQI recorded in

September

52AQI

202376AQI

7
15
7
2
4
16
7
1
1
12
13
5
1
22
3
2
1
6
20
4
1
6
23
1
17
14
16
14
1
9
19
2
8
19
4
11
13
3
2
7
6
12
6
93
193
57
19
1

Highest AQI recorded in

March

107AQI

Lowest AQI recorded in

July

51AQI

202272AQI

5
13
7
5
3
9
5
4
4
16
9
1
1
4
19
5
1
6
21
4
16
14
10
11
1
1
13
15
17
12
2
11
12
7
10
12
7
2
99
154
48
13
1

Highest AQI recorded in

August

137AQI

Lowest AQI recorded in

June

51AQI

202178AQI

5
10
10
6
1
2
4
7
22
8
13
12
5
1
9
9
7
5
6
15
8
2
59
62
32
14

Highest AQI recorded in

February

116AQI

Lowest AQI recorded in

September

42AQI

202079AQI

4
6
3
2
6
9
2
15
3
2
23
1
11
13
6
1
16
15
8
22
5
17
7
2
10
11
7
2
2
12
9
6
2
60
140
45
13
2

Highest AQI recorded in

December

114AQI

Lowest AQI recorded in

August

52AQI

Most & Least Polluted Years Over the Last 6 Years

Most Polluted Year Recorded
2020(Avg.)
79AQI
Least Polluted Year Recorded
2025(Avg.)
71AQI

China Agricultural University's annual 2025 AQI (71) shows an average percentage change of -7.3% (improved AQI) compared to previous years: 2020 (79), 2021 (78), 2022 (72), 2023 (76), 2024 (76).