Cotan, Xian, Shaanxi, China Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+
August Air Quality Analysis
Cotan, Xian, Shaanxi, China
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
17th Aug 2023
107AQILowest AQI recorded on
27th Aug 2023
34AQISame Day Analysis (2nd August ):
On this day, AQI across the 3 years varied significantly: 2025 ranks 2nd highest AQI at 62 of Moderate air quality, showing improvement over 2024 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 3rd Aug - 4th Aug 2025
Cotan, Xian, Shaanxi, China
AQI
Day
Night
.
5 AM3rd Aug 2025
7 PM
4 AM4th Aug 2025
Day time
Avg. Highest Time
12AMNaNth undefined
AQI
Avg. Lowest Time
12AMNaNth undefined
AQI
Night time
Avg. Highest Time
10AM3rd Aug
78AQI
Avg. Lowest Time
7AM3rd Aug
60AQI
In the last 24 hours,
Cotan's AQI reached its highest point of 78 at 10 AM during the Night, while the lowest point, undefined, was recorded at 4 AM during the Night between 3rd Aug and 4th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Cotan, Xian, Shaanxi, China
JulAug
05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th
Day
Night
5th Jul 2025605 AMAQI
5th Jul 2025606 AMAQI
5th Jul 2025607 AMAQI
5th Jul 2025418 AMAQI
5th Jul 2025329 AMAQI
5th Jul 20252110 AMAQI
5th Jul 20252311 AMAQI
5th Jul 20253212 PMAQI
5th Jul 2025421 PMAQI
5th Jul 2025442 PMAQI
5th Jul 2025423 PMAQI
5th Jul 2025454 PMAQI
5th Jul 2025425 PMAQI
5th Jul 2025486 PMAQI
5th Jul 2025467 PMAQI
5th Jul 2025528 PMAQI
5th Jul 2025549 PMAQI
5th Jul 20255410 PMAQI
5th Jul 20255411 PMAQI
6th Jul 20255512 AMAQI
6th Jul 2025581 AMAQI
6th Jul 2025572 AMAQI
6th Jul 2025573 AMAQI
6th Jul 2025554 AMAQI
29°C22/35°C
6th Jul 2025545 AMAQI
6th Jul 2025546 AMAQI
6th Jul 2025547 AMAQI
6th Jul 2025558 AMAQI
6th Jul 2025469 AMAQI
6th Jul 20253210 AMAQI
6th Jul 20254611 AMAQI
6th Jul 20254812 PMAQI
6th Jul 2025501 PMAQI
6th Jul 2025522 PMAQI
6th Jul 2025543 PMAQI
6th Jul 2025444 PMAQI
6th Jul 2025465 PMAQI
6th Jul 2025486 PMAQI
6th Jul 2025527 PMAQI
6th Jul 2025558 PMAQI
6th Jul 2025559 PMAQI
6th Jul 20255410 PMAQI
6th Jul 20255411 PMAQI
7th Jul 20255412 AMAQI
7th Jul 2025551 AMAQI
7th Jul 2025562 AMAQI
7th Jul 2025553 AMAQI
7th Jul 2025544 AMAQI
27°C22/34°C
7th Jul 2025545 AMAQI
7th Jul 2025546 AMAQI
7th Jul 2025537 AMAQI
7th Jul 2025568 AMAQI
7th Jul 2025529 AMAQI
7th Jul 20255010 AMAQI
7th Jul 20255411 AMAQI
7th Jul 20255412 PMAQI
7th Jul 2025561 PMAQI
7th Jul 2025552 PMAQI
7th Jul 2025573 PMAQI
7th Jul 2025594 PMAQI
7th Jul 2025465 PMAQI
7th Jul 2025476 PMAQI
7th Jul 2025467 PMAQI
7th Jul 2025568 PMAQI
7th Jul 2025549 PMAQI
7th Jul 20255410 PMAQI
7th Jul 20255411 PMAQI
8th Jul 20255512 AMAQI
8th Jul 2025551 AMAQI
8th Jul 2025552 AMAQI
8th Jul 2025553 AMAQI
8th Jul 2025564 AMAQI
27°C23/31°C
8th Jul 2025555 AMAQI
8th Jul 2025556 AMAQI
8th Jul 2025567 AMAQI
8th Jul 2025388 AMAQI
8th Jul 2025409 AMAQI
8th Jul 20252610 AMAQI
8th Jul 20252811 AMAQI
8th Jul 20254512 PMAQI
8th Jul 2025611 PMAQI
8th Jul 2025632 PMAQI
8th Jul 2025613 PMAQI
8th Jul 2025624 PMAQI
8th Jul 2025585 PMAQI
8th Jul 2025636 PMAQI
8th Jul 2025677 PMAQI
8th Jul 2025598 PMAQI
8th Jul 2025579 PMAQI
8th Jul 20255810 PMAQI
8th Jul 20255711 PMAQI
9th Jul 20255712 AMAQI
9th Jul 2025551 AMAQI
9th Jul 2025542 AMAQI
9th Jul 2025543 AMAQI
9th Jul 2025554 AMAQI
27°C25/30°C
9th Jul 2025545 AMAQI
9th Jul 2025556 AMAQI
9th Jul 2025547 AMAQI
9th Jul 2025828 AMAQI
9th Jul 2025749 AMAQI
9th Jul 20257510 AMAQI
9th Jul 20257511 AMAQI
9th Jul 20256912 PMAQI
9th Jul 2025721 PMAQI
9th Jul 2025702 PMAQI
9th Jul 2025703 PMAQI
9th Jul 2025634 PMAQI
9th Jul 2025605 PMAQI
9th Jul 2025586 PMAQI
9th Jul 2025607 PMAQI
9th Jul 2025608 PMAQI
9th Jul 2025619 PMAQI
9th Jul 20256210 PMAQI
9th Jul 20256211 PMAQI
10th Jul 20256312 AMAQI
10th Jul 2025581 AMAQI
10th Jul 2025582 AMAQI
10th Jul 2025593 AMAQI
10th Jul 2025614 AMAQI
28°C23/35°C
10th Jul 2025625 AMAQI
10th Jul 2025616 AMAQI
10th Jul 2025627 AMAQI
10th Jul 2025748 AMAQI
10th Jul 2025789 AMAQI
10th Jul 20257810 AMAQI
10th Jul 20257611 AMAQI
10th Jul 20257012 PMAQI
10th Jul 2025701 PMAQI
10th Jul 2025652 PMAQI
10th Jul 2025603 PMAQI
10th Jul 2025554 PMAQI
10th Jul 2025555 PMAQI
10th Jul 2025546 PMAQI
10th Jul 2025587 PMAQI
10th Jul 2025608 PMAQI
10th Jul 2025629 PMAQI
10th Jul 20256210 PMAQI
10th Jul 20256411 PMAQI
11th Jul 20256412 AMAQI
11th Jul 2025621 AMAQI
11th Jul 2025622 AMAQI
11th Jul 2025623 AMAQI
11th Jul 2025624 AMAQI
29°C24/34°C
11th Jul 2025635 AMAQI
11th Jul 2025636 AMAQI
11th Jul 2025627 AMAQI
11th Jul 2025798 AMAQI
11th Jul 2025839 AMAQI
11th Jul 20258410 AMAQI
11th Jul 20259611 AMAQI
11th Jul 20257812 PMAQI
11th Jul 2025731 PMAQI
11th Jul 2025722 PMAQI
11th Jul 2025703 PMAQI
11th Jul 2025624 PMAQI
11th Jul 2025615 PMAQI
11th Jul 2025626 PMAQI
11th Jul 2025647 PMAQI
11th Jul 2025638 PMAQI
11th Jul 2025649 PMAQI
11th Jul 20256310 PMAQI
11th Jul 20256411 PMAQI
12th Jul 20256312 AMAQI
12th Jul 2025631 AMAQI
12th Jul 2025632 AMAQI
12th Jul 2025633 AMAQI
12th Jul 2025644 AMAQI
31°C25/38°C
12th Jul 2025645 AMAQI
12th Jul 2025646 AMAQI
12th Jul 2025647 AMAQI
12th Jul 2025848 AMAQI
12th Jul 2025959 AMAQI
12th Jul 20259310 AMAQI
12th Jul 20259011 AMAQI
12th Jul 20257912 PMAQI
12th Jul 2025711 PMAQI
12th Jul 2025702 PMAQI
12th Jul 2025723 PMAQI
12th Jul 2025714 PMAQI
12th Jul 2025695 PMAQI
12th Jul 2025696 PMAQI
12th Jul 2025667 PMAQI
12th Jul 2025638 PMAQI
12th Jul 2025669 PMAQI
12th Jul 20256610 PMAQI
12th Jul 20256611 PMAQI
13th Jul 20256712 AMAQI
13th Jul 2025641 AMAQI
13th Jul 2025642 AMAQI
13th Jul 2025643 AMAQI
13th Jul 2025654 AMAQI
31°C25/38°C
13th Jul 2025665 AMAQI
13th Jul 2025656 AMAQI
13th Jul 2025657 AMAQI
13th Jul 2025768 AMAQI
13th Jul 2025869 AMAQI
13th Jul 20258610 AMAQI
13th Jul 20259011 AMAQI
13th Jul 20258012 PMAQI
13th Jul 2025751 PMAQI
13th Jul 2025722 PMAQI
13th Jul 2025733 PMAQI
13th Jul 2025704 PMAQI
13th Jul 2025685 PMAQI
13th Jul 2025646 PMAQI
13th Jul 2025657 PMAQI
13th Jul 2025648 PMAQI
13th Jul 2025669 PMAQI
13th Jul 20256610 PMAQI
13th Jul 20256611 PMAQI
14th Jul 20256612 AMAQI
14th Jul 2025661 AMAQI
14th Jul 2025662 AMAQI
14th Jul 2025663 AMAQI
14th Jul 2025674 AMAQI
33°C26/40°C
14th Jul 2025675 AMAQI
14th Jul 2025676 AMAQI
14th Jul 2025677 AMAQI
14th Jul 2025768 AMAQI
14th Jul 2025789 AMAQI
14th Jul 20258010 AMAQI
14th Jul 20258111 AMAQI
14th Jul 20257412 PMAQI
14th Jul 2025741 PMAQI
14th Jul 2025722 PMAQI
14th Jul 2025663 PMAQI
14th Jul 2025624 PMAQI
14th Jul 2025605 PMAQI
14th Jul 2025646 PMAQI
14th Jul 2025647 PMAQI
14th Jul 2025668 PMAQI
14th Jul 2025669 PMAQI
14th Jul 20256710 PMAQI
14th Jul 20256611 PMAQI
15th Jul 20256612 AMAQI
15th Jul 2025661 AMAQI
15th Jul 2025662 AMAQI
15th Jul 2025673 AMAQI
15th Jul 2025684 AMAQI
34°C28/41°C
15th Jul 2025675 AMAQI
15th Jul 2025676 AMAQI
15th Jul 2025677 AMAQI
15th Jul 2025678 AMAQI
15th Jul 2025669 AMAQI
15th Jul 20256210 AMAQI
15th Jul 20256911 AMAQI
15th Jul 20256812 PMAQI
15th Jul 2025661 PMAQI
15th Jul 2025672 PMAQI
15th Jul 2025613 PMAQI
15th Jul 2025584 PMAQI
15th Jul 2025595 PMAQI
15th Jul 2025566 PMAQI
15th Jul 2025617 PMAQI
15th Jul 2025648 PMAQI
15th Jul 2025659 PMAQI
15th Jul 20256610 PMAQI
15th Jul 20256811 PMAQI
16th Jul 20256612 AMAQI
16th Jul 2025661 AMAQI
16th Jul 2025672 AMAQI
16th Jul 2025663 AMAQI
16th Jul 2025664 AMAQI
35°C29/42°C
16th Jul 2025665 AMAQI
16th Jul 2025666 AMAQI
16th Jul 2025667 AMAQI
16th Jul 2025728 AMAQI
16th Jul 2025689 AMAQI
16th Jul 20256810 AMAQI
16th Jul 20256611 AMAQI
16th Jul 20256712 PMAQI
16th Jul 2025721 PMAQI
16th Jul 2025712 PMAQI
16th Jul 2025723 PMAQI
16th Jul 2025704 PMAQI
16th Jul 2025675 PMAQI
16th Jul 2025676 PMAQI
16th Jul 2025647 PMAQI
16th Jul 2025648 PMAQI
16th Jul 2025669 PMAQI
16th Jul 20256610 PMAQI
16th Jul 20256611 PMAQI
17th Jul 20256612 AMAQI
17th Jul 2025661 AMAQI
17th Jul 2025662 AMAQI
17th Jul 2025663 AMAQI
17th Jul 2025664 AMAQI
35°C31/39°C
17th Jul 2025665 AMAQI
17th Jul 2025676 AMAQI
17th Jul 2025677 AMAQI
17th Jul 2025718 AMAQI
17th Jul 2025689 AMAQI
17th Jul 20257010 AMAQI
17th Jul 20257411 AMAQI
17th Jul 20257012 PMAQI
17th Jul 2025721 PMAQI
17th Jul 2025702 PMAQI
17th Jul 2025733 PMAQI
17th Jul 2025704 PMAQI
17th Jul 2025705 PMAQI
17th Jul 2025636 PMAQI
17th Jul 2025567 PMAQI
17th Jul 2025628 PMAQI
17th Jul 2025649 PMAQI
17th Jul 20256410 PMAQI
17th Jul 20256411 PMAQI
18th Jul 20256512 AMAQI
18th Jul 2025661 AMAQI
18th Jul 2025662 AMAQI
18th Jul 2025663 AMAQI
18th Jul 2025664 AMAQI
34°C28/42°C
18th Jul 2025665 AMAQI
18th Jul 2025676 AMAQI
18th Jul 2025667 AMAQI
18th Jul 2025568 AMAQI
18th Jul 2025569 AMAQI
18th Jul 20256110 AMAQI
18th Jul 20256111 AMAQI
18th Jul 20256312 PMAQI
18th Jul 2025641 PMAQI
18th Jul 2025582 PMAQI
18th Jul 2025573 PMAQI
18th Jul 2025584 PMAQI
18th Jul 2025605 PMAQI
18th Jul 2025626 PMAQI
18th Jul 2025627 PMAQI
18th Jul 2025658 PMAQI
18th Jul 2025659 PMAQI
18th Jul 20256510 PMAQI
18th Jul 20256511 PMAQI
19th Jul 20256412 AMAQI
19th Jul 2025641 AMAQI
19th Jul 2025662 AMAQI
19th Jul 2025663 AMAQI
19th Jul 2025654 AMAQI
33°C28/39°C
19th Jul 2025655 AMAQI
19th Jul 2025656 AMAQI
19th Jul 2025657 AMAQI
19th Jul 2025698 AMAQI
19th Jul 2025719 AMAQI
19th Jul 20257210 AMAQI
19th Jul 20257311 AMAQI
19th Jul 20257312 PMAQI
19th Jul 2025681 PMAQI
19th Jul 2025662 PMAQI
19th Jul 2025623 PMAQI
19th Jul 2025644 PMAQI
19th Jul 2025665 PMAQI
19th Jul 2025656 PMAQI
19th Jul 2025687 PMAQI
19th Jul 2025658 PMAQI
19th Jul 2025659 PMAQI
19th Jul 20256410 PMAQI
19th Jul 20256511 PMAQI
20th Jul 20256512 AMAQI
20th Jul 2025651 AMAQI
20th Jul 2025642 AMAQI
20th Jul 2025653 AMAQI
20th Jul 2025664 AMAQI
32°C25/40°C
20th Jul 2025655 AMAQI
20th Jul 2025656 AMAQI
20th Jul 2025657 AMAQI
20th Jul 2025608 AMAQI
20th Jul 2025389 AMAQI
20th Jul 20255310 AMAQI
20th Jul 20254711 AMAQI
20th Jul 20255412 PMAQI
20th Jul 2025491 PMAQI
20th Jul 2025482 PMAQI
20th Jul 2025463 PMAQI
20th Jul 2025484 PMAQI
20th Jul 2025485 PMAQI
20th Jul 2025496 PMAQI
20th Jul 2025507 PMAQI
20th Jul 2025628 PMAQI
20th Jul 2025639 PMAQI
20th Jul 20256310 PMAQI
20th Jul 20256311 PMAQI
21st Jul 20256412 AMAQI
21st Jul 2025641 AMAQI
21st Jul 2025642 AMAQI
21st Jul 2025643 AMAQI
21st Jul 2025644 AMAQI
24°C23/25°C
21st Jul 2025645 AMAQI
21st Jul 2025646 AMAQI
21st Jul 2025647 AMAQI
21st Jul 2025558 AMAQI
21st Jul 2025469 AMAQI
21st Jul 20253810 AMAQI
21st Jul 20254611 AMAQI
21st Jul 20255612 PMAQI
21st Jul 2025571 PMAQI
21st Jul 2025582 PMAQI
21st Jul 2025593 PMAQI
21st Jul 2025624 PMAQI
21st Jul 2025645 PMAQI
21st Jul 2025586 PMAQI
21st Jul 2025587 PMAQI
21st Jul 2025648 PMAQI
21st Jul 2025649 PMAQI
21st Jul 20256510 PMAQI
21st Jul 20256511 PMAQI
22nd Jul 20256412 AMAQI
22nd Jul 2025631 AMAQI
22nd Jul 2025632 AMAQI
22nd Jul 2025643 AMAQI
22nd Jul 2025634 AMAQI
29°C22/35°C
22nd Jul 2025625 AMAQI
22nd Jul 2025636 AMAQI
22nd Jul 2025637 AMAQI
22nd Jul 2025808 AMAQI
22nd Jul 2025849 AMAQI
22nd Jul 20259410 AMAQI
22nd Jul 20259411 AMAQI
22nd Jul 20257812 PMAQI
22nd Jul 2025801 PMAQI
22nd Jul 2025752 PMAQI
22nd Jul 2025703 PMAQI
22nd Jul 2025684 PMAQI
22nd Jul 2025695 PMAQI
22nd Jul 2025656 PMAQI
22nd Jul 2025627 PMAQI
22nd Jul 2025638 PMAQI
22nd Jul 2025639 PMAQI
22nd Jul 20256310 PMAQI
22nd Jul 20256411 PMAQI
23rd Jul 20256312 AMAQI
23rd Jul 2025631 AMAQI
23rd Jul 2025642 AMAQI
23rd Jul 2025643 AMAQI
23rd Jul 2025654 AMAQI
30°C25/36°C
23rd Jul 2025645 AMAQI
23rd Jul 2025646 AMAQI
23rd Jul 2025657 AMAQI
23rd Jul 2025668 AMAQI
23rd Jul 2025619 AMAQI
23rd Jul 20257210 AMAQI
23rd Jul 20257011 AMAQI
23rd Jul 20256212 PMAQI
23rd Jul 2025561 PMAQI
23rd Jul 2025542 PMAQI
23rd Jul 2025553 PMAQI
23rd Jul 2025554 PMAQI
23rd Jul 2025525 PMAQI
23rd Jul 2025536 PMAQI
23rd Jul 2025537 PMAQI
23rd Jul 2025618 PMAQI
23rd Jul 2025629 PMAQI
23rd Jul 20256110 PMAQI
23rd Jul 20256211 PMAQI
24th Jul 20256112 AMAQI
24th Jul 2025621 AMAQI
24th Jul 2025632 AMAQI
24th Jul 2025633 AMAQI
24th Jul 2025644 AMAQI
30°C25/36°C
24th Jul 2025635 AMAQI
24th Jul 2025646 AMAQI
24th Jul 2025647 AMAQI
24th Jul 2025408 AMAQI
24th Jul 2025249 AMAQI
24th Jul 20252410 AMAQI
24th Jul 20254511 AMAQI
24th Jul 20254812 PMAQI
24th Jul 2025531 PMAQI
24th Jul 2025462 PMAQI
24th Jul 2025433 PMAQI
24th Jul 2025434 PMAQI
24th Jul 2025425 PMAQI
24th Jul 2025456 PMAQI
24th Jul 2025457 PMAQI
24th Jul 2025588 PMAQI
24th Jul 2025609 PMAQI
24th Jul 20255910 PMAQI
24th Jul 20256011 PMAQI
25th Jul 20256012 AMAQI
25th Jul 2025601 AMAQI
25th Jul 2025622 AMAQI
25th Jul 2025623 AMAQI
25th Jul 2025614 AMAQI
32°C26/39°C
25th Jul 2025615 AMAQI
25th Jul 2025616 AMAQI
25th Jul 2025607 AMAQI
25th Jul 2025408 AMAQI
25th Jul 2025259 AMAQI
25th Jul 20253610 AMAQI
25th Jul 20253211 AMAQI
25th Jul 20254912 PMAQI
25th Jul 2025521 PMAQI
25th Jul 2025532 PMAQI
25th Jul 2025503 PMAQI
25th Jul 2025524 PMAQI
25th Jul 2025515 PMAQI
25th Jul 2025526 PMAQI
25th Jul 2025527 PMAQI
25th Jul 2025588 PMAQI
25th Jul 2025589 PMAQI
25th Jul 20255810 PMAQI
25th Jul 20255811 PMAQI
26th Jul 20255912 AMAQI
26th Jul 2025601 AMAQI
26th Jul 2025602 AMAQI
26th Jul 2025603 AMAQI
26th Jul 2025594 AMAQI
32°C27/38°C
26th Jul 2025595 AMAQI
26th Jul 2025596 AMAQI
26th Jul 2025607 AMAQI
26th Jul 2025558 AMAQI
26th Jul 2025559 AMAQI
26th Jul 20255810 AMAQI
26th Jul 20255711 AMAQI
26th Jul 20255612 PMAQI
26th Jul 2025541 PMAQI
26th Jul 2025582 PMAQI
26th Jul 2025543 PMAQI
26th Jul 2025554 PMAQI
26th Jul 2025525 PMAQI
26th Jul 2025546 PMAQI
26th Jul 2025557 PMAQI
26th Jul 2025578 PMAQI
26th Jul 2025599 PMAQI
26th Jul 20255810 PMAQI
26th Jul 20255811 PMAQI
27th Jul 20255812 AMAQI
27th Jul 2025581 AMAQI
27th Jul 2025592 AMAQI
27th Jul 2025593 AMAQI
27th Jul 2025584 AMAQI
33°C27/40°C
27th Jul 2025585 AMAQI
27th Jul 2025586 AMAQI
27th Jul 2025597 AMAQI
27th Jul 2025478 AMAQI
27th Jul 2025499 AMAQI
27th Jul 20256410 AMAQI
27th Jul 20256111 AMAQI
27th Jul 20255812 PMAQI
27th Jul 2025591 PMAQI
27th Jul 2025592 PMAQI
27th Jul 2025573 PMAQI
27th Jul 2025564 PMAQI
27th Jul 2025575 PMAQI
27th Jul 2025566 PMAQI
27th Jul 2025567 PMAQI
27th Jul 2025588 PMAQI
27th Jul 2025589 PMAQI
27th Jul 20255810 PMAQI
27th Jul 20255811 PMAQI
28th Jul 20255812 AMAQI
28th Jul 2025581 AMAQI
28th Jul 2025582 AMAQI
28th Jul 2025583 AMAQI
28th Jul 2025584 AMAQI
32°C27/39°C
28th Jul 2025585 AMAQI
28th Jul 2025586 AMAQI
28th Jul 2025587 AMAQI
28th Jul 2025608 AMAQI
28th Jul 2025639 AMAQI
28th Jul 20255910 AMAQI
28th Jul 20255811 AMAQI
28th Jul 20255712 PMAQI
28th Jul 2025581 PMAQI
28th Jul 2025552 PMAQI
28th Jul 2025553 PMAQI
28th Jul 2025564 PMAQI
28th Jul 2025575 PMAQI
28th Jul 2025556 PMAQI
28th Jul 2025577 PMAQI
28th Jul 2025588 PMAQI
28th Jul 2025589 PMAQI
28th Jul 20255910 PMAQI
28th Jul 20255811 PMAQI
29th Jul 20255812 AMAQI
29th Jul 2025581 AMAQI
29th Jul 2025582 AMAQI
29th Jul 2025583 AMAQI
29th Jul 2025584 AMAQI
33°C27/41°C
29th Jul 2025585 AMAQI
29th Jul 2025586 AMAQI
29th Jul 2025587 AMAQI
29th Jul 2025688 AMAQI
29th Jul 2025629 AMAQI
29th Jul 20256810 AMAQI
29th Jul 20256411 AMAQI
29th Jul 20256212 PMAQI
29th Jul 2025631 PMAQI
29th Jul 2025642 PMAQI
29th Jul 2025663 PMAQI
29th Jul 2025624 PMAQI
29th Jul 2025595 PMAQI
29th Jul 2025596 PMAQI
29th Jul 2025587 PMAQI
29th Jul 2025588 PMAQI
29th Jul 2025599 PMAQI
29th Jul 20256010 PMAQI
29th Jul 20256111 PMAQI
30th Jul 20256012 AMAQI
30th Jul 2025581 AMAQI
30th Jul 2025592 AMAQI
30th Jul 2025593 AMAQI
30th Jul 2025594 AMAQI
33°C28/41°C
30th Jul 2025585 AMAQI
30th Jul 2025586 AMAQI
30th Jul 2025597 AMAQI
30th Jul 2025648 AMAQI
30th Jul 2025749 AMAQI
30th Jul 20257110 AMAQI
30th Jul 20258011 AMAQI
30th Jul 20256612 PMAQI
30th Jul 2025701 PMAQI
30th Jul 2025682 PMAQI
30th Jul 2025693 PMAQI
30th Jul 2025694 PMAQI
30th Jul 2025685 PMAQI
30th Jul 2025676 PMAQI
30th Jul 2025627 PMAQI
30th Jul 2025608 PMAQI
30th Jul 2025619 PMAQI
30th Jul 20256110 PMAQI
30th Jul 20256011 PMAQI
31st Jul 20256012 AMAQI
31st Jul 2025601 AMAQI
31st Jul 2025592 AMAQI
31st Jul 2025593 AMAQI
31st Jul 2025594 AMAQI
33°C27/40°C
31st Jul 2025595 AMAQI
31st Jul 2025596 AMAQI
31st Jul 2025597 AMAQI
31st Jul 2025598 AMAQI
31st Jul 2025599 AMAQI
31st Jul 20255710 AMAQI
31st Jul 20255411 AMAQI
31st Jul 20255812 PMAQI
31st Jul 2025591 PMAQI
31st Jul 2025612 PMAQI
31st Jul 2025573 PMAQI
31st Jul 2025564 PMAQI
31st Jul 2025545 PMAQI
31st Jul 2025566 PMAQI
31st Jul 2025607 PMAQI
31st Jul 2025588 PMAQI
31st Jul 2025609 PMAQI
31st Jul 20256410 PMAQI
31st Jul 20256611 PMAQI
1st Aug 20256312 AMAQI
1st Aug 2025591 AMAQI
1st Aug 2025582 AMAQI
1st Aug 2025573 AMAQI
1st Aug 2025584 AMAQI
33°C27/41°C
1st Aug 2025585 AMAQI
1st Aug 2025586 AMAQI
1st Aug 2025577 AMAQI
1st Aug 2025708 AMAQI
1st Aug 2025639 AMAQI
1st Aug 20256210 AMAQI
1st Aug 20256811 AMAQI
1st Aug 20256212 PMAQI
1st Aug 2025701 PMAQI
1st Aug 2025682 PMAQI
1st Aug 2025673 PMAQI
1st Aug 2025664 PMAQI
1st Aug 2025685 PMAQI
1st Aug 2025666 PMAQI
1st Aug 2025677 PMAQI
1st Aug 2025658 PMAQI
1st Aug 2025649 PMAQI
1st Aug 20256410 PMAQI
1st Aug 20256611 PMAQI
2nd Aug 20256212 AMAQI
2nd Aug 2025591 AMAQI
2nd Aug 2025592 AMAQI
2nd Aug 2025603 AMAQI
2nd Aug 2025624 AMAQI
33°C27/41°C
2nd Aug 2025615 AMAQI
2nd Aug 2025616 AMAQI
2nd Aug 2025627 AMAQI
2nd Aug 2025708 AMAQI
2nd Aug 2025689 AMAQI
2nd Aug 20256410 AMAQI
2nd Aug 20257011 AMAQI
2nd Aug 20256812 PMAQI
2nd Aug 2025661 PMAQI
2nd Aug 2025652 PMAQI
2nd Aug 2025683 PMAQI
2nd Aug 2025684 PMAQI
2nd Aug 2025685 PMAQI
2nd Aug 2025676 PMAQI
2nd Aug 2025627 PMAQI
2nd Aug 2025648 PMAQI
2nd Aug 2025649 PMAQI
2nd Aug 20256410 PMAQI
2nd Aug 20256611 PMAQI
3rd Aug 20256412 AMAQI
3rd Aug 2025601 AMAQI
3rd Aug 2025602 AMAQI
3rd Aug 2025623 AMAQI
3rd Aug 2025634 AMAQI
35°C27/43°C
3rd Aug 2025625 AMAQI
3rd Aug 2025626 AMAQI
3rd Aug 2025607 AMAQI
3rd Aug 2025728 AMAQI
3rd Aug 2025749 AMAQI
3rd Aug 20257810 AMAQI
3rd Aug 20257411 AMAQI
3rd Aug 20257212 PMAQI
3rd Aug 2025721 PMAQI
3rd Aug 2025762 PMAQI
3rd Aug 2025733 PMAQI
3rd Aug 2025674 PMAQI
3rd Aug 2025655 PMAQI
3rd Aug 2025666 PMAQI
3rd Aug 2025647 PMAQI
3rd Aug 2025668 PMAQI
3rd Aug 2025669 PMAQI
3rd Aug 20256610 PMAQI
3rd Aug 20256611 PMAQI
4th Aug 20256612 AMAQI
4th Aug 2025611 AMAQI
--°C/°C
5 AM
12 PM
7 PM
12 AM
4 AM
--°C/°C
Day time
Avg. Highest Time
5 AM - 7 PM
61AQI
15 hours / Day
450 hours / Month
Avg. Lowest Time
5 AM - 7 PM
61AQI
15 hours / Day
450 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 7 PM (Avg. 61), while the lowest AQI was between 5 AM to 7 PM (Avg. 61).
Night time
Avg. Highest Time
12 AM - 11 PM
62AQI
9 hours / Day
270 hours / Month
Avg. Lowest Time
12 AM - 11 PM
62AQI
9 hours / Day
270 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 11 PM (Avg. 62), while the lowest AQI was between 12 AM to 11 PM (Avg. 62).
2025 Days Vs Air Quality
Cotan, Xian, Shaanxi, China
2025
51%
110
36%
77
10%
22
2%
4
0.4%
1
Total number of days with different AQI categories in last 215 days in 2025 (150 days remaining)
Good
0 DaysModerate
110 DaysPoor
77 DaysUnhealthy
22 DaysSevere
4 DaysHazardous
1 DaysUnder WHO’s Safe Air Quality Limits: 0%
Health Risk Level:
Extreme
In 2025, 0% of 215 days were within WHO’s safe air quality limits. The risk of health issues is Extreme, potentially causing respiratory problems, heart disease, skin issues, and stress, especially for children, the elderly, and those with pre-existing conditions.
Annual Air Quality Insights
Cotan, Xian, Shaanxi, China
AQI levels in 2025
AQI
PM2.5
PM10
CO
SO2
NO2
O3
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
1st January 2025
142AQI
142AQI
2nd January 2025
129AQI
129AQI
3rd January 2025
146AQI
146AQI
4th January 2025
162AQI
162AQI
5th January 2025
147AQI
147AQI
6th January 2025
110AQI
110AQI
7th January 2025
115AQI
115AQI
8th January 2025
128AQI
128AQI
9th January 2025
90AQI
90AQI
10th January 2025
121AQI
121AQI
11th January 2025
94AQI
94AQI
12th January 2025
93AQI
93AQI
13th January 2025
141AQI
141AQI
14th January 2025
102AQI
102AQI
15th January 2025
84AQI
84AQI
16th January 2025
121AQI
121AQI
17th January 2025
127AQI
127AQI
18th January 2025
128AQI
128AQI
19th January 2025
154AQI
154AQI
20th January 2025
166AQI
166AQI
21st January 2025
172AQI
172AQI
22nd January 2025
184AQI
184AQI
23rd January 2025
174AQI
174AQI
24th January 2025
170AQI
170AQI
25th January 2025
104AQI
104AQI
26th January 2025
109AQI
109AQI
27th January 2025
87AQI
87AQI
28th January 2025
136AQI
136AQI
29th January 2025
188AQI
188AQI
30th January 2025
193AQI
193AQI
31st January 2025
221AQI
221AQI
1st February 2025
194AQI
194AQI
2nd February 2025
170AQI
170AQI
3rd February 2025
94AQI
94AQI
4th February 2025
113AQI
113AQI
5th February 2025
71AQI
71AQI
6th February 2025
95AQI
95AQI
7th February 2025
74AQI
74AQI
8th February 2025
68AQI
68AQI
9th February 2025
85AQI
85AQI
10th February 2025
124AQI
124AQI
11th February 2025
137AQI
137AQI
12th February 2025
101AQI
101AQI
13th February 2025
136AQI
136AQI
14th February 2025
121AQI
121AQI
15th February 2025
153AQI
153AQI
16th February 2025
108AQI
108AQI
17th February 2025
131AQI
131AQI
18th February 2025
140AQI
140AQI
19th February 2025
151AQI
151AQI
20th February 2025
152AQI
152AQI
21st February 2025
162AQI
162AQI
22nd February 2025
170AQI
170AQI
23rd February 2025
101AQI
101AQI
24th February 2025
124AQI
124AQI
25th February 2025
114AQI
114AQI
26th February 2025
130AQI
130AQI
27th February 2025
141AQI
141AQI
28th February 2025
158AQI
158AQI
1st March 2025
173AQI
173AQI
2nd March 2025
105AQI
105AQI
3rd March 2025
92AQI
92AQI
4th March 2025
97AQI
97AQI
5th March 2025
116AQI
116AQI
6th March 2025
119AQI
119AQI
7th March 2025
131AQI
131AQI
8th March 2025
140AQI
140AQI
9th March 2025
122AQI
122AQI
10th March 2025
139AQI
139AQI
11th March 2025
238AQI
238AQI
12th March 2025
193AQI
193AQI
13th March 2025
131AQI
131AQI
14th March 2025
118AQI
118AQI
15th March 2025
87AQI
87AQI
16th March 2025
75AQI
75AQI
17th March 2025
78AQI
78AQI
18th March 2025
70AQI
70AQI
19th March 2025
78AQI
78AQI
20th March 2025
81AQI
81AQI
21st March 2025
92AQI
92AQI
22nd March 2025
99AQI
99AQI
23rd March 2025
100AQI
100AQI
24th March 2025
90AQI
90AQI
25th March 2025
87AQI
87AQI
26th March 2025
146AQI
146AQI
27th March 2025
129AQI
129AQI
28th March 2025
140AQI
140AQI
29th March 2025
112AQI
112AQI
30th March 2025
114AQI
114AQI
31st March 2025
110AQI
110AQI
1st April 2025
102AQI
102AQI
2nd April 2025
105AQI
105AQI
3rd April 2025
122AQI
122AQI
4th April 2025
127AQI
127AQI
5th April 2025
103AQI
103AQI
6th April 2025
114AQI
114AQI
7th April 2025
96AQI
96AQI
8th April 2025
124AQI
124AQI
9th April 2025
128AQI
128AQI
10th April 2025
118AQI
118AQI
11th April 2025
136AQI
136AQI
12th April 2025
270AQI
270AQI
13th April 2025
135AQI
135AQI
14th April 2025
110AQI
110AQI
15th April 2025
95AQI
95AQI
16th April 2025
129AQI
129AQI
17th April 2025
126AQI
126AQI
18th April 2025
137AQI
137AQI
19th April 2025
124AQI
124AQI
20th April 2025
104AQI
104AQI
21st April 2025
104AQI
104AQI
22nd April 2025
152AQI
152AQI
23rd April 2025
117AQI
117AQI
24th April 2025
104AQI
104AQI
25th April 2025
109AQI
109AQI
26th April 2025
95AQI
95AQI
27th April 2025
85AQI
85AQI
28th April 2025
76AQI
76AQI
29th April 2025
77AQI
77AQI
30th April 2025
112AQI
112AQI
1st May 2025
108AQI
108AQI
2nd May 2025
107AQI
107AQI
3rd May 2025
85AQI
85AQI
4th May 2025
94AQI
94AQI
5th May 2025
132AQI
132AQI
6th May 2025
507AQI
507AQI
7th May 2025
165AQI
165AQI
8th May 2025
155AQI
155AQI
9th May 2025
112AQI
112AQI
10th May 2025
102AQI
102AQI
11th May 2025
87AQI
87AQI
12th May 2025
93AQI
93AQI
13th May 2025
73AQI
73AQI
14th May 2025
100AQI
100AQI
15th May 2025
97AQI
97AQI
16th May 2025
94AQI
94AQI
17th May 2025
224AQI
224AQI
18th May 2025
139AQI
139AQI
19th May 2025
129AQI
129AQI
20th May 2025
125AQI
125AQI
21st May 2025
117AQI
117AQI
22nd May 2025
130AQI
130AQI
23rd May 2025
89AQI
89AQI
24th May 2025
93AQI
93AQI
25th May 2025
83AQI
83AQI
26th May 2025
78AQI
78AQI
27th May 2025
87AQI
87AQI
28th May 2025
89AQI
89AQI
29th May 2025
86AQI
86AQI
30th May 2025
89AQI
89AQI
31st May 2025
76AQI
76AQI
1st June 2025
82AQI
82AQI
2nd June 2025
69AQI
69AQI
3rd June 2025
71AQI
71AQI
4th June 2025
72AQI
72AQI
5th June 2025
66AQI
66AQI
6th June 2025
71AQI
71AQI
7th June 2025
64AQI
64AQI
8th June 2025
68AQI
68AQI
9th June 2025
64AQI
64AQI
10th June 2025
68AQI
68AQI
11th June 2025
75AQI
75AQI
12th June 2025
75AQI
75AQI
13th June 2025
81AQI
81AQI
14th June 2025
76AQI
76AQI
15th June 2025
80AQI
80AQI
16th June 2025
81AQI
81AQI
17th June 2025
81AQI
81AQI
18th June 2025
82AQI
82AQI
19th June 2025
78AQI
78AQI
20th June 2025
76AQI
76AQI
21st June 2025
78AQI
78AQI
22nd June 2025
78AQI
78AQI
23rd June 2025
72AQI
72AQI
24th June 2025
72AQI
72AQI
25th June 2025
68AQI
68AQI
26th June 2025
64AQI
64AQI
27th June 2025
66AQI
66AQI
28th June 2025
62AQI
62AQI
29th June 2025
61AQI
61AQI
30th June 2025
57AQI
57AQI
1st July 2025
58AQI
58AQI
2nd July 2025
54AQI
54AQI
3rd July 2025
59AQI
59AQI
4th July 2025
57AQI
57AQI
5th July 2025
51AQI
51AQI
6th July 2025
52AQI
52AQI
7th July 2025
53AQI
53AQI
8th July 2025
55AQI
55AQI
9th July 2025
61AQI
61AQI
10th July 2025
63AQI
63AQI
11th July 2025
66AQI
66AQI
12th July 2025
68AQI
68AQI
13th July 2025
69AQI
69AQI
14th July 2025
68AQI
68AQI
15th July 2025
65AQI
65AQI
16th July 2025
67AQI
67AQI
17th July 2025
66AQI
66AQI
18th July 2025
63AQI
63AQI
19th July 2025
66AQI
66AQI
20th July 2025
59AQI
59AQI
21st July 2025
61AQI
61AQI
22nd July 2025
68AQI
68AQI
23rd July 2025
61AQI
61AQI
24th July 2025
54AQI
54AQI
25th July 2025
55AQI
55AQI
26th July 2025
58AQI
58AQI
27th July 2025
58AQI
58AQI
28th July 2025
58AQI
58AQI
29th July 2025
60AQI
60AQI
30th July 2025
63AQI
63AQI
31st July 2025
59AQI
59AQI
1st August 2025
63AQI
63AQI
2nd August 2025
62AQI
62AQI
137AQI
126AQI
116AQI
118AQI
121AQI
72AQI
60AQI
63AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
2025107AQI
5
16
9
1
6
14
8
13
15
2
1
6
22
1
1
17
10
2
1
1
30
31
2
110
77
22
4
1
Highest AQI recorded in
January137AQI
Lowest AQI recorded in
July60AQI
202499AQI
1
4
16
9
5
14
8
2
4
5
1
11
1
29
3
27
1
31
2
22
2
3
2
11
13
5
2
10
12
6
4
23
4
12
158
86
35
2
Highest AQI recorded in
February138AQI
Lowest AQI recorded in
July65AQI
202396AQI
6
8
5
2
5
11
11
1
10
18
3
2
15
7
4
1
1
27
4
30
2
23
1
9
21
1
2
22
1
3
15
12
1
15
8
3
11
10
10
18
200
81
37
4
1
Highest AQI recorded in
February140AQI
Lowest AQI recorded in
August58AQI
20219AQI
1
1
Highest AQI recorded in
January9AQI
Lowest AQI recorded in
January9AQI
2020107AQI
3
8
1
1
5
16
12
6
1
20
9
3
17
11
8
20
3
18
12
1
15
12
3
5
10
14
1
4
5
19
3
13
119
92
37
5
Highest AQI recorded in
December155AQI
Lowest AQI recorded in
August69AQI
Most & Least Polluted Years Over the Last 5 Years
Most Polluted Year Recorded
2020(Avg.)
107AQILeast Polluted Year Recorded
2021(Avg.)
9AQICotan's annual 2025 AQI (107) shows an average percentage change of 275.1% (worsened AQI) compared to previous years: 2020 (107), 2021 (9), 2023 (96), 2024 (99).
