Country Background
HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

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+

June Air Quality Analysis

Cotan, Xian, Shaanxi, China

2023
2024
2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
19th Jun 2023
100AQI
Lowest AQI recorded on
21st Jun 2024
50AQI

Same Day Analysis (3rd June):
On this day, AQI across the 4 years varied significantly: 2026 ranks 1st highest AQI at 90 of Moderate air quality on the same day.

Download 2024 Annual Data

World Air Quality Report

Globe

Day & Night AQI Trend: 2nd Jun - 3rd Jun 2026

Cotan, Xian, Shaanxi, China

AQI
Day
Night
.

5 AM2nd Jun 2026

7 PM

4 AM3rd Jun 2026

Day time
Avg. Highest Time
7AM2nd Jun

102AQI

Avg. Lowest Time
5AM2nd Jun

80AQI

Night time
Avg. Highest Time
1AM3rd Jun

118AQI

Avg. Lowest Time
8PM2nd Jun

88AQI

In the last 24 hours,

Cotan's AQI reached its highest point of 118 at 1 AM during the Night, while the lowest point, 80, was recorded at 5 AM during the Day between 2nd Jun and 3rd Jun 2026.

Day & Night AQI Trend : May - Jun 2026

Cotan, Xian, Shaanxi, China

MayJun
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
Day
Night
5th May 2026765 AMAQI
5th May 2026746 AMAQI
5th May 2026797 AMAQI
5th May 2026588 AMAQI
5th May 2026539 AMAQI
5th May 20265010 AMAQI
5th May 20265411 AMAQI
5th May 20265212 PMAQI
5th May 2026511 PMAQI
5th May 2026442 PMAQI
5th May 2026443 PMAQI
5th May 2026454 PMAQI
5th May 2026435 PMAQI
5th May 2026476 PMAQI
5th May 2026427 PMAQI
5th May 2026508 PMAQI
5th May 2026569 PMAQI
5th May 20266410 PMAQI
5th May 20267611 PMAQI
6th May 20268512 AMAQI
6th May 2026921 AMAQI
6th May 2026892 AMAQI
6th May 2026963 AMAQI
6th May 20261104 AMAQI

23°C15/33°C

6th May 20261095 AMAQI
6th May 20261066 AMAQI
6th May 2026967 AMAQI
6th May 2026838 AMAQI
6th May 2026929 AMAQI
6th May 20268710 AMAQI
6th May 20267811 AMAQI
6th May 20268212 PMAQI
6th May 2026601 PMAQI
6th May 2026562 PMAQI
6th May 2026443 PMAQI
6th May 2026314 PMAQI
6th May 2026335 PMAQI
6th May 2026406 PMAQI
6th May 2026447 PMAQI
6th May 2026408 PMAQI
6th May 2026429 PMAQI
6th May 20264810 PMAQI
6th May 20265811 PMAQI
7th May 20265412 AMAQI
7th May 2026481 AMAQI
7th May 2026502 AMAQI
7th May 2026523 AMAQI
7th May 2026484 AMAQI

18°C14/25°C

7th May 2026515 AMAQI
7th May 2026546 AMAQI
7th May 2026597 AMAQI
7th May 2026548 AMAQI
7th May 2026609 AMAQI
7th May 20265410 AMAQI
7th May 20265411 AMAQI
7th May 20265112 PMAQI
7th May 2026501 PMAQI
7th May 2026402 PMAQI
7th May 2026373 PMAQI
7th May 2026384 PMAQI
7th May 2026375 PMAQI
7th May 2026306 PMAQI
7th May 2026277 PMAQI
7th May 2026288 PMAQI
7th May 2026309 PMAQI
7th May 20264210 PMAQI
7th May 20265411 PMAQI
8th May 20265812 AMAQI
8th May 2026591 AMAQI
8th May 2026572 AMAQI
8th May 2026583 AMAQI
8th May 2026594 AMAQI

18°C12/24°C

8th May 2026575 AMAQI
8th May 2026466 AMAQI
8th May 2026427 AMAQI
8th May 2026598 AMAQI
8th May 2026559 AMAQI
8th May 20265310 AMAQI
8th May 20265911 AMAQI
8th May 20266812 PMAQI
8th May 2026851 PMAQI
8th May 2026922 PMAQI
8th May 2026853 PMAQI
8th May 2026744 PMAQI
8th May 2026595 PMAQI
8th May 2026506 PMAQI
8th May 2026407 PMAQI
8th May 2026348 PMAQI
8th May 2026389 PMAQI
8th May 20263810 PMAQI
8th May 20263211 PMAQI
9th May 20264412 AMAQI
9th May 2026571 AMAQI
9th May 2026722 AMAQI
9th May 2026703 AMAQI
9th May 2026854 AMAQI

20°C15/26°C

9th May 2026715 AMAQI
9th May 2026566 AMAQI
9th May 2026637 AMAQI
9th May 2026728 AMAQI
9th May 2026789 AMAQI
9th May 20267210 AMAQI
9th May 20267211 AMAQI
9th May 20266712 PMAQI
9th May 2026541 PMAQI
9th May 2026482 PMAQI
9th May 2026373 PMAQI
9th May 2026314 PMAQI
9th May 2026285 PMAQI
9th May 2026316 PMAQI
9th May 2026327 PMAQI
9th May 2026318 PMAQI
9th May 2026399 PMAQI
9th May 20266010 PMAQI
9th May 20266011 PMAQI
10th May 20266512 AMAQI
10th May 2026721 AMAQI
10th May 2026792 AMAQI
10th May 2026873 AMAQI
10th May 2026764 AMAQI

22°C14/32°C

10th May 2026735 AMAQI
10th May 2026686 AMAQI
10th May 2026677 AMAQI
10th May 2026688 AMAQI
10th May 2026729 AMAQI
10th May 20266910 AMAQI
10th May 20266511 AMAQI
10th May 20265412 PMAQI
10th May 2026481 PMAQI
10th May 2026462 PMAQI
10th May 2026573 PMAQI
10th May 2026524 PMAQI
10th May 2026585 PMAQI
10th May 2026706 PMAQI
10th May 2026737 PMAQI
10th May 2026848 PMAQI
10th May 2026689 PMAQI
10th May 20266010 PMAQI
10th May 20267411 PMAQI
11th May 20268812 AMAQI
11th May 20261021 AMAQI
11th May 2026952 AMAQI
11th May 2026983 AMAQI
11th May 2026884 AMAQI

26°C18/36°C

11th May 2026795 AMAQI
11th May 2026816 AMAQI
11th May 2026807 AMAQI
11th May 2026728 AMAQI
11th May 2026799 AMAQI
11th May 20267410 AMAQI
11th May 20266911 AMAQI
11th May 20266612 PMAQI
11th May 2026601 PMAQI
11th May 2026622 PMAQI
11th May 2026603 PMAQI
11th May 2026804 PMAQI
11th May 2026685 PMAQI
11th May 2026766 PMAQI
11th May 2026727 PMAQI
11th May 2026768 PMAQI
11th May 2026839 PMAQI
11th May 20268910 PMAQI
11th May 20268911 PMAQI
12th May 20269212 AMAQI
12th May 20261081 AMAQI
12th May 2026942 AMAQI
12th May 20261053 AMAQI
12th May 20261124 AMAQI

28°C20/37°C

12th May 20261045 AMAQI
12th May 20261256 AMAQI
12th May 20261227 AMAQI
12th May 20261258 AMAQI
12th May 20261299 AMAQI
12th May 202614010 AMAQI
12th May 202614211 AMAQI
12th May 202615012 PMAQI
12th May 20261451 PMAQI
12th May 20261322 PMAQI
12th May 20261453 PMAQI
12th May 20261304 PMAQI
12th May 20261265 PMAQI
12th May 20261466 PMAQI
12th May 20261427 PMAQI
12th May 20261288 PMAQI
12th May 20261309 PMAQI
12th May 20267810 PMAQI
12th May 20265411 PMAQI
13th May 20265412 AMAQI
13th May 2026551 AMAQI
13th May 2026562 AMAQI
13th May 2026643 AMAQI
13th May 2026534 AMAQI

26°C20/34°C

13th May 2026525 AMAQI
13th May 2026386 AMAQI
13th May 2026407 AMAQI
13th May 2026548 AMAQI
13th May 2026569 AMAQI
13th May 20265410 AMAQI
13th May 20265711 AMAQI
13th May 20266312 PMAQI
13th May 2026641 PMAQI
13th May 2026652 PMAQI
13th May 2026703 PMAQI
13th May 2026544 PMAQI
13th May 2026515 PMAQI
13th May 2026406 PMAQI
13th May 2026387 PMAQI
13th May 2026488 PMAQI
13th May 2026539 PMAQI
13th May 20266410 PMAQI
13th May 20266611 PMAQI
14th May 20267612 AMAQI
14th May 2026741 AMAQI
14th May 2026692 AMAQI
14th May 2026703 AMAQI
14th May 2026684 AMAQI

21°C18/25°C

14th May 2026605 AMAQI
14th May 2026566 AMAQI
14th May 2026557 AMAQI
14th May 2026368 AMAQI
14th May 2026609 AMAQI
14th May 20266410 AMAQI
14th May 20266911 AMAQI
14th May 20267512 PMAQI
14th May 2026721 PMAQI
14th May 2026802 PMAQI
14th May 2026813 PMAQI
14th May 2026764 PMAQI
14th May 2026765 PMAQI
14th May 2026796 PMAQI
14th May 2026767 PMAQI
14th May 2026708 PMAQI
14th May 2026749 PMAQI
14th May 20268310 PMAQI
14th May 20268311 PMAQI
15th May 20267212 AMAQI
15th May 2026691 AMAQI
15th May 2026672 AMAQI
15th May 2026783 AMAQI
15th May 2026854 AMAQI

23°C15/30°C

15th May 2026955 AMAQI
15th May 2026966 AMAQI
15th May 2026997 AMAQI
15th May 2026988 AMAQI
15th May 2026949 AMAQI
15th May 20269610 AMAQI
15th May 20269411 AMAQI
15th May 202611012 PMAQI
15th May 20261021 PMAQI
15th May 20261042 PMAQI
15th May 2026923 PMAQI
15th May 2026734 PMAQI
15th May 2026785 PMAQI
15th May 2026546 PMAQI
15th May 2026607 PMAQI
15th May 2026868 PMAQI
15th May 2026929 PMAQI
15th May 20269010 PMAQI
15th May 202611011 PMAQI
16th May 202611312 AMAQI
16th May 20261051 AMAQI
16th May 2026902 AMAQI
16th May 2026683 AMAQI
16th May 2026724 AMAQI

22°C18/30°C

16th May 2026705 AMAQI
16th May 2026726 AMAQI
16th May 2026747 AMAQI
16th May 2026788 AMAQI
16th May 2026819 AMAQI
16th May 20268010 AMAQI
16th May 20269011 AMAQI
16th May 20268012 PMAQI
16th May 2026721 PMAQI
16th May 2026742 PMAQI
16th May 2026723 PMAQI
16th May 2026644 PMAQI
16th May 2026655 PMAQI
16th May 2026636 PMAQI
16th May 2026727 PMAQI
16th May 2026768 PMAQI
16th May 2026879 PMAQI
16th May 20269010 PMAQI
16th May 20268811 PMAQI
17th May 20268012 AMAQI
17th May 2026851 AMAQI
17th May 2026822 AMAQI
17th May 2026833 AMAQI
17th May 2026834 AMAQI

18°C16/23°C

17th May 2026805 AMAQI
17th May 2026786 AMAQI
17th May 2026807 AMAQI
17th May 2026858 AMAQI
17th May 2026859 AMAQI
17th May 20267410 AMAQI
17th May 20267411 AMAQI
17th May 20267812 PMAQI
17th May 2026671 PMAQI
17th May 2026682 PMAQI
17th May 2026673 PMAQI
17th May 2026684 PMAQI
17th May 2026685 PMAQI
17th May 2026686 PMAQI
17th May 2026667 PMAQI
17th May 2026708 PMAQI
17th May 2026869 PMAQI
17th May 20269210 PMAQI
17th May 20269011 PMAQI
18th May 20268112 AMAQI
18th May 2026831 AMAQI
18th May 2026782 AMAQI
18th May 2026763 AMAQI
18th May 2026734 AMAQI

18°C17/20°C

18th May 2026715 AMAQI
18th May 2026786 AMAQI
18th May 2026727 AMAQI
18th May 2026748 AMAQI
18th May 2026849 AMAQI
18th May 20267610 AMAQI
18th May 20267311 AMAQI
18th May 20266712 PMAQI
18th May 2026741 PMAQI
18th May 2026712 PMAQI
18th May 2026693 PMAQI
18th May 2026654 PMAQI
18th May 2026645 PMAQI
18th May 2026696 PMAQI
18th May 2026687 PMAQI
18th May 2026688 PMAQI
18th May 2026699 PMAQI
18th May 20267910 PMAQI
18th May 20268611 PMAQI
19th May 20269012 AMAQI
19th May 2026851 AMAQI
19th May 2026782 AMAQI
19th May 2026743 AMAQI
19th May 2026694 AMAQI

21°C15/28°C

19th May 2026735 AMAQI
19th May 2026686 AMAQI
19th May 2026747 AMAQI
19th May 2026768 AMAQI
19th May 2026839 AMAQI
19th May 20267610 AMAQI
19th May 20267611 AMAQI
19th May 20267312 PMAQI
19th May 2026671 PMAQI
19th May 2026652 PMAQI
19th May 2026663 PMAQI
19th May 2026664 PMAQI
19th May 2026625 PMAQI
19th May 2026646 PMAQI
19th May 2026767 PMAQI
19th May 2026828 PMAQI
19th May 2026889 PMAQI
19th May 20268910 PMAQI
19th May 20268211 PMAQI
20th May 20269612 AMAQI
20th May 20261441 AMAQI
20th May 2026952 AMAQI
20th May 20261043 AMAQI
20th May 20261024 AMAQI

23°C17/30°C

20th May 2026985 AMAQI
20th May 2026996 AMAQI
20th May 2026927 AMAQI
20th May 2026748 AMAQI
20th May 2026759 AMAQI
20th May 20267510 AMAQI
20th May 20267511 AMAQI
20th May 20267512 PMAQI
20th May 2026751 PMAQI
20th May 2026782 PMAQI
20th May 2026763 PMAQI
20th May 2026784 PMAQI
20th May 2026765 PMAQI
20th May 2026766 PMAQI
20th May 2026767 PMAQI
20th May 2026848 PMAQI
20th May 2026959 PMAQI
20th May 20269410 PMAQI
20th May 202610011 PMAQI
21st May 20269712 AMAQI
21st May 20261041 AMAQI
21st May 2026942 AMAQI
21st May 2026813 AMAQI
21st May 2026874 AMAQI

24°C16/32°C

21st May 2026785 AMAQI
21st May 2026866 AMAQI
21st May 2026897 AMAQI
21st May 20261038 AMAQI
21st May 20261109 AMAQI
21st May 202611410 AMAQI
21st May 202611411 AMAQI
21st May 202611412 PMAQI
21st May 20261141 PMAQI
21st May 20261142 PMAQI
21st May 20261003 PMAQI
21st May 2026984 PMAQI
21st May 20261025 PMAQI
21st May 20261056 PMAQI
21st May 20261087 PMAQI
21st May 20261018 PMAQI
21st May 20261109 PMAQI
21st May 202610310 PMAQI
21st May 202610411 PMAQI
22nd May 202610512 AMAQI
22nd May 20261061 AMAQI
22nd May 2026992 AMAQI
22nd May 20261043 AMAQI
22nd May 20261044 AMAQI

21°C18/24°C

22nd May 20261025 AMAQI
22nd May 20261026 AMAQI
22nd May 20261017 AMAQI
22nd May 20261058 AMAQI
22nd May 2026989 AMAQI
22nd May 20269910 AMAQI
22nd May 20269911 AMAQI
22nd May 20269912 PMAQI
22nd May 2026991 PMAQI
22nd May 2026992 PMAQI
22nd May 2026993 PMAQI
22nd May 2026994 PMAQI
22nd May 2026995 PMAQI
22nd May 2026996 PMAQI
22nd May 2026907 PMAQI
22nd May 2026898 PMAQI
22nd May 20261049 PMAQI
22nd May 202610010 PMAQI
22nd May 202610011 PMAQI
23rd May 202610612 AMAQI
23rd May 2026941 AMAQI
23rd May 2026942 AMAQI
23rd May 2026973 AMAQI
23rd May 2026944 AMAQI

22°C19/28°C

23rd May 2026875 AMAQI
23rd May 2026946 AMAQI
23rd May 2026957 AMAQI
23rd May 2026948 AMAQI
23rd May 2026929 AMAQI
23rd May 20269510 AMAQI
23rd May 20269511 AMAQI
23rd May 20269512 PMAQI
23rd May 2026951 PMAQI
23rd May 2026952 PMAQI
23rd May 2026813 PMAQI
23rd May 2026714 PMAQI
23rd May 2026715 PMAQI
23rd May 2026746 PMAQI
23rd May 2026767 PMAQI
23rd May 2026728 PMAQI
23rd May 2026829 PMAQI
23rd May 20269210 PMAQI
23rd May 20269811 PMAQI
24th May 20269612 AMAQI
24th May 2026921 AMAQI
24th May 2026882 AMAQI
24th May 2026843 AMAQI
24th May 2026904 AMAQI

24°C20/29°C

24th May 2026865 AMAQI
24th May 2026806 AMAQI
24th May 2026747 AMAQI
24th May 2026888 AMAQI
24th May 2026799 AMAQI
24th May 20267810 AMAQI
24th May 20267811 AMAQI
24th May 20267812 PMAQI
24th May 2026781 PMAQI
24th May 2026792 PMAQI
24th May 2026703 PMAQI
24th May 2026714 PMAQI
24th May 2026705 PMAQI
24th May 2026686 PMAQI
24th May 2026747 PMAQI
24th May 2026888 PMAQI
24th May 2026949 PMAQI
24th May 202611010 PMAQI
24th May 202610011 PMAQI
25th May 20269412 AMAQI
25th May 20261051 AMAQI
25th May 2026952 AMAQI
25th May 2026903 AMAQI
25th May 2026874 AMAQI

24°C20/28°C

25th May 2026835 AMAQI
25th May 2026866 AMAQI
25th May 2026857 AMAQI
25th May 2026868 AMAQI
25th May 2026899 AMAQI
25th May 20269010 AMAQI
25th May 20269011 AMAQI
25th May 20269012 PMAQI
25th May 2026901 PMAQI
25th May 2026782 PMAQI
25th May 2026683 PMAQI
25th May 2026714 PMAQI
25th May 2026725 PMAQI
25th May 2026736 PMAQI
25th May 2026637 PMAQI
25th May 2026718 PMAQI
25th May 2026789 PMAQI
25th May 20268610 PMAQI
25th May 20268811 PMAQI
26th May 20268012 AMAQI
26th May 2026811 AMAQI
26th May 2026702 AMAQI
26th May 2026653 AMAQI
26th May 2026664 AMAQI

22°C18/26°C

26th May 2026645 AMAQI
26th May 2026666 AMAQI
26th May 2026657 AMAQI
26th May 2026638 AMAQI
26th May 2026679 AMAQI
26th May 20266710 AMAQI
26th May 20266711 AMAQI
26th May 20267212 PMAQI
26th May 2026811 PMAQI
26th May 2026672 PMAQI
26th May 2026543 PMAQI
26th May 2026204 PMAQI
26th May 2026215 PMAQI
26th May 2026226 PMAQI
26th May 2026237 PMAQI
26th May 2026678 PMAQI
26th May 2026709 PMAQI
26th May 20267810 PMAQI
26th May 20268211 PMAQI
27th May 20268812 AMAQI
27th May 2026891 AMAQI
27th May 2026892 AMAQI
27th May 2026923 AMAQI
27th May 2026954 AMAQI

23°C19/28°C

27th May 20261155 AMAQI
27th May 20261026 AMAQI
27th May 20261187 AMAQI
27th May 20261208 AMAQI
27th May 20261159 AMAQI
27th May 202611210 AMAQI
27th May 202611511 AMAQI
27th May 202610612 PMAQI
27th May 20261081 PMAQI
27th May 20261062 PMAQI
27th May 20261083 PMAQI
27th May 20261024 PMAQI
27th May 2026735 PMAQI
27th May 2026646 PMAQI
27th May 2026607 PMAQI
27th May 2026658 PMAQI
27th May 2026699 PMAQI
27th May 20267010 PMAQI
27th May 20266811 PMAQI
28th May 20266812 AMAQI
28th May 2026681 AMAQI
28th May 2026642 AMAQI
28th May 2026613 AMAQI
28th May 2026604 AMAQI

21°C19/22°C

28th May 2026575 AMAQI
28th May 2026566 AMAQI
28th May 2026577 AMAQI
28th May 2026578 AMAQI
28th May 2026589 AMAQI
28th May 20265810 AMAQI
28th May 20266311 AMAQI
28th May 20266612 PMAQI
28th May 2026711 PMAQI
28th May 2026782 PMAQI
28th May 2026693 PMAQI
28th May 2026664 PMAQI
28th May 2026645 PMAQI
28th May 2026676 PMAQI
28th May 2026647 PMAQI
28th May 2026668 PMAQI
28th May 2026669 PMAQI
28th May 20267110 PMAQI
28th May 20267311 PMAQI
29th May 20266812 AMAQI
29th May 2026711 AMAQI
29th May 2026682 AMAQI
29th May 2026763 AMAQI
29th May 2026674 AMAQI

20°C19/22°C

29th May 2026645 AMAQI
29th May 2026576 AMAQI
29th May 2026527 AMAQI
29th May 2026528 AMAQI
29th May 2026549 AMAQI
29th May 20265210 AMAQI
29th May 20265611 AMAQI
29th May 20265812 PMAQI
29th May 2026551 PMAQI
29th May 2026552 PMAQI
29th May 2026543 PMAQI
29th May 2026444 PMAQI
29th May 2026415 PMAQI
29th May 2026286 PMAQI
29th May 2026307 PMAQI
29th May 2026298 PMAQI
29th May 2026309 PMAQI
29th May 20263210 PMAQI
29th May 20265011 PMAQI
30th May 20264412 AMAQI
30th May 2026381 AMAQI
30th May 2026822 AMAQI
30th May 2026783 AMAQI
30th May 2026704 AMAQI

21°C18/28°C

30th May 2026715 AMAQI
30th May 2026696 AMAQI
30th May 2026717 AMAQI
30th May 2026718 AMAQI
30th May 2026689 AMAQI
30th May 20266710 AMAQI
30th May 20266511 AMAQI
30th May 20266512 PMAQI
30th May 2026381 PMAQI
30th May 2026312 PMAQI
30th May 2026383 PMAQI
30th May 2026384 PMAQI
30th May 2026305 PMAQI
30th May 2026336 PMAQI
30th May 2026327 PMAQI
30th May 2026288 PMAQI
30th May 2026359 PMAQI
30th May 20265010 PMAQI
30th May 20265411 PMAQI
31st May 20267112 AMAQI
31st May 2026821 AMAQI
31st May 2026882 AMAQI
31st May 2026863 AMAQI
31st May 2026744 AMAQI

24°C16/33°C

31st May 2026745 AMAQI
31st May 2026906 AMAQI
31st May 2026887 AMAQI
31st May 2026928 AMAQI
31st May 20261059 AMAQI
31st May 20268010 AMAQI
31st May 20266011 AMAQI
31st May 20266412 PMAQI
31st May 2026731 PMAQI
31st May 2026942 PMAQI
31st May 2026723 PMAQI
31st May 2026584 PMAQI
31st May 2026675 PMAQI
31st May 2026596 PMAQI
31st May 2026527 PMAQI
31st May 2026578 PMAQI
31st May 2026699 PMAQI
31st May 20266610 PMAQI
31st May 20266911 PMAQI
1st Jun 20267412 AMAQI
1st Jun 2026831 AMAQI
1st Jun 2026852 AMAQI
1st Jun 2026863 AMAQI
1st Jun 2026874 AMAQI

27°C20/34°C

1st Jun 2026745 AMAQI
1st Jun 2026696 AMAQI
1st Jun 2026727 AMAQI
1st Jun 2026748 AMAQI
1st Jun 2026729 AMAQI
1st Jun 20267810 AMAQI
1st Jun 20268011 AMAQI
1st Jun 20268312 PMAQI
1st Jun 2026811 PMAQI
1st Jun 2026762 PMAQI
1st Jun 2026863 PMAQI
1st Jun 2026484 PMAQI
1st Jun 2026505 PMAQI
1st Jun 2026496 PMAQI
1st Jun 2026477 PMAQI
1st Jun 2026408 PMAQI
1st Jun 2026499 PMAQI
1st Jun 20265010 PMAQI
1st Jun 20266011 PMAQI
2nd Jun 20265412 AMAQI
2nd Jun 2026831 AMAQI
2nd Jun 2026852 AMAQI
2nd Jun 2026793 AMAQI
2nd Jun 2026744 AMAQI

28°C22/35°C

2nd Jun 2026805 AMAQI
2nd Jun 2026866 AMAQI
2nd Jun 20261027 AMAQI
2nd Jun 2026998 AMAQI
2nd Jun 2026969 AMAQI
2nd Jun 20269510 AMAQI
2nd Jun 20268511 AMAQI
2nd Jun 20268512 PMAQI
2nd Jun 2026841 PMAQI
2nd Jun 2026872 PMAQI
2nd Jun 2026903 PMAQI
2nd Jun 2026934 PMAQI
2nd Jun 2026905 PMAQI
2nd Jun 2026876 PMAQI
2nd Jun 2026947 PMAQI
2nd Jun 2026888 PMAQI
2nd Jun 2026969 PMAQI
2nd Jun 20269810 PMAQI
2nd Jun 202611511 PMAQI
3rd Jun 202611212 AMAQI
3rd Jun 20261181 AMAQI
3rd Jun 20261022 AMAQI
3rd Jun 20261093 AMAQI
3rd Jun 20261084 AMAQI

28°C22/35°C

3rd Jun 20261065 AMAQI
5 AM
3rd Jun 20261066 AMAQI
3rd Jun 20261047 AMAQI
3rd Jun 2026978 AMAQI
3rd Jun 2026939 AMAQI
3rd Jun 20268810 AMAQI
3rd Jun 20268111 AMAQI
3rd Jun 20267912 PMAQI
12 PM
3rd Jun 2026941 PMAQI
3rd Jun 2026862 PMAQI
3rd Jun 2026833 PMAQI
3rd Jun 2026754 PMAQI
3rd Jun 2026745 PMAQI
3rd Jun 2026746 PMAQI
3rd Jun 2026757 PMAQI
7 PM
3rd Jun 2026738 PMAQI
3rd Jun 2026759 PMAQI
3rd Jun 20267310 PMAQI
3rd Jun 20267011 PMAQI
12 AM
4 AM

30°C24/40°C

Day time
Avg. Highest Time
5 AM - 2 PM

79AQI

10 hours / Day
300 hours / Month
Avg. Lowest Time
5 PM - 7 PM

64AQI

3 hours / Day
90 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 2 PM (Avg. 79), while the lowest AQI was between 5 PM to 7 PM (Avg. 64).
Night time
Avg. Highest Time
1 AM

84AQI

1 hours / Day
30 hours / Month
Avg. Lowest Time
8 PM

66AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 1 AM to 1 AM (Avg. 84), while the lowest AQI was between 8 PM to 8 PM (Avg. 66).

2026 Days Vs Air Quality

Cotan, Xian, Shaanxi, China

2026

4%

6

45%

69

36%

55

16%

24

Total number of days with different AQI categories in last 154 days in 2026 (211 days remaining)

Good
6 Days
Moderate
69 Days
Poor
55 Days
Unhealthy
24 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 4%

Health Risk Level:

Extreme

In 2026, 4% of 154 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 2026

AQI (US)
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 2026
-1th undefined 2026
-1th undefined 2026
-1th undefined 2026
1st January 2026
112AQI (US)
2nd January 2026
164AQI (US)
3rd January 2026
185AQI (US)
4th January 2026
146AQI (US)
5th January 2026
124AQI (US)
6th January 2026
72AQI (US)
7th January 2026
118AQI (US)
8th January 2026
99AQI (US)
9th January 2026
112AQI (US)
10th January 2026
73AQI (US)
11th January 2026
83AQI (US)
12th January 2026
146AQI (US)
13th January 2026
150AQI (US)
14th January 2026
146AQI (US)
15th January 2026
146AQI (US)
16th January 2026
155AQI (US)
17th January 2026
157AQI (US)
18th January 2026
166AQI (US)
19th January 2026
100AQI (US)
20th January 2026
59AQI (US)
21st January 2026
108AQI (US)
22nd January 2026
150AQI (US)
23rd January 2026
165AQI (US)
24th January 2026
180AQI (US)
25th January 2026
180AQI (US)
26th January 2026
155AQI (US)
27th January 2026
142AQI (US)
28th January 2026
176AQI (US)
29th January 2026
138AQI (US)
30th January 2026
144AQI (US)
31st January 2026
169AQI (US)
1st February 2026
162AQI (US)
2nd February 2026
148AQI (US)
3rd February 2026
163AQI (US)
4th February 2026
166AQI (US)
5th February 2026
168AQI (US)
6th February 2026
162AQI (US)
7th February 2026
98AQI (US)
8th February 2026
117AQI (US)
9th February 2026
136AQI (US)
10th February 2026
94AQI (US)
11th February 2026
131AQI (US)
12th February 2026
148AQI (US)
13th February 2026
141AQI (US)
14th February 2026
162AQI (US)
15th February 2026
86AQI (US)
16th February 2026
85AQI (US)
17th February 2026
144AQI (US)
18th February 2026
160AQI (US)
19th February 2026
119AQI (US)
20th February 2026
112AQI (US)
21st February 2026
123AQI (US)
22nd February 2026
106AQI (US)
23rd February 2026
101AQI (US)
24th February 2026
73AQI (US)
25th February 2026
130AQI (US)
26th February 2026
135AQI (US)
27th February 2026
109AQI (US)
28th February 2026
102AQI (US)
1st March 2026
41AQI (US)
2nd March 2026
68AQI (US)
3rd March 2026
103AQI (US)
4th March 2026
151AQI (US)
5th March 2026
139AQI (US)
6th March 2026
106AQI (US)
7th March 2026
96AQI (US)
8th March 2026
117AQI (US)
9th March 2026
100AQI (US)
10th March 2026
151AQI (US)
11th March 2026
160AQI (US)
12th March 2026
159AQI (US)
13th March 2026
160AQI (US)
14th March 2026
116AQI (US)
15th March 2026
73AQI (US)
16th March 2026
108AQI (US)
17th March 2026
107AQI (US)
18th March 2026
70AQI (US)
19th March 2026
100AQI (US)
20th March 2026
112AQI (US)
21st March 2026
140AQI (US)
22nd March 2026
129AQI (US)
23rd March 2026
134AQI (US)
24th March 2026
122AQI (US)
25th March 2026
126AQI (US)
26th March 2026
154AQI (US)
27th March 2026
124AQI (US)
28th March 2026
93AQI (US)
29th March 2026
86AQI (US)
30th March 2026
66AQI (US)
31st March 2026
70AQI (US)
1st April 2026
79AQI (US)
2nd April 2026
111AQI (US)
3rd April 2026
94AQI (US)
4th April 2026
86AQI (US)
5th April 2026
107AQI (US)
6th April 2026
101AQI (US)
7th April 2026
121AQI (US)
8th April 2026
108AQI (US)
9th April 2026
104AQI (US)
10th April 2026
96AQI (US)
11th April 2026
100AQI (US)
12th April 2026
118AQI (US)
13th April 2026
106AQI (US)
14th April 2026
95AQI (US)
15th April 2026
88AQI (US)
16th April 2026
52AQI (US)
17th April 2026
70AQI (US)
18th April 2026
67AQI (US)
19th April 2026
90AQI (US)
20th April 2026
95AQI (US)
21st April 2026
44AQI (US)
22nd April 2026
41AQI (US)
23rd April 2026
63AQI (US)
24th April 2026
85AQI (US)
25th April 2026
73AQI (US)
26th April 2026
90AQI (US)
27th April 2026
91AQI (US)
28th April 2026
104AQI (US)
29th April 2026
94AQI (US)
30th April 2026
79AQI (US)
1st May 2026
73AQI (US)
2nd May 2026
61AQI (US)
3rd May 2026
34AQI (US)
4th May 2026
45AQI (US)
5th May 2026
60AQI (US)
6th May 2026
71AQI (US)
7th May 2026
46AQI (US)
8th May 2026
57AQI (US)
9th May 2026
55AQI (US)
10th May 2026
67AQI (US)
11th May 2026
78AQI (US)
12th May 2026
121AQI (US)
13th May 2026
55AQI (US)
14th May 2026
70AQI (US)
15th May 2026
87AQI (US)
16th May 2026
78AQI (US)
17th May 2026
77AQI (US)
18th May 2026
74AQI (US)
19th May 2026
75AQI (US)
20th May 2026
88AQI (US)
21st May 2026
101AQI (US)
22nd May 2026
100AQI (US)
23rd May 2026
89AQI (US)
24th May 2026
83AQI (US)
25th May 2026
84AQI (US)
26th May 2026
62AQI (US)
27th May 2026
94AQI (US)
28th May 2026
64AQI (US)
29th May 2026
52AQI (US)
30th May 2026
53AQI (US)
31st May 2026
75AQI (US)
1st June 2026
69AQI (US)
2nd June 2026
89AQI (US)
3rd June 2026
90AQI (US)
4th June 2026
5th June 2026
6th June 2026
7th June 2026
8th June 2026
9th June 2026
10th June 2026
11th June 2026
12th June 2026
13th June 2026
14th June 2026
15th June 2026
16th June 2026
17th June 2026
18th June 2026
19th June 2026
20th June 2026
21st June 2026
22nd June 2026
23rd June 2026
24th June 2026
25th June 2026
26th June 2026
27th June 2026
28th June 2026
29th June 2026
30th June 2026
1st July 2026
2nd July 2026
3rd July 2026
4th July 2026
5th July 2026
6th July 2026
7th July 2026
8th July 2026
9th July 2026
10th July 2026
11th July 2026
12th July 2026
13th July 2026
14th July 2026
15th July 2026
16th July 2026
17th July 2026
18th July 2026
19th July 2026
20th July 2026
21st July 2026
22nd July 2026
23rd July 2026
24th July 2026
25th July 2026
26th July 2026
27th July 2026
28th July 2026
29th July 2026
30th July 2026
31st July 2026
1st August 2026
2nd August 2026
3rd August 2026
4th August 2026
5th August 2026
6th August 2026
7th August 2026
8th August 2026
9th August 2026
10th August 2026
11th August 2026
12th August 2026
13th August 2026
14th August 2026
15th August 2026
16th August 2026
17th August 2026
18th August 2026
19th August 2026
20th August 2026
21st August 2026
22nd August 2026
23rd August 2026
24th August 2026
25th August 2026
26th August 2026
27th August 2026
28th August 2026
29th August 2026
30th August 2026
31st August 2026
1st September 2026
2nd September 2026
3rd September 2026
4th September 2026
5th September 2026
6th September 2026
7th September 2026
8th September 2026
9th September 2026
10th September 2026
11th September 2026
12th September 2026
13th September 2026
14th September 2026
15th September 2026
16th September 2026
17th September 2026
18th September 2026
19th September 2026
20th September 2026
21st September 2026
22nd September 2026
23rd September 2026
24th September 2026
25th September 2026
26th September 2026
27th September 2026
28th September 2026
29th September 2026
30th September 2026
1st October 2026
2nd October 2026
3rd October 2026
4th October 2026
5th October 2026
6th October 2026
7th October 2026
8th October 2026
9th October 2026
10th October 2026
11th October 2026
12th October 2026
13th October 2026
14th October 2026
15th October 2026
16th October 2026
17th October 2026
18th October 2026
19th October 2026
20th October 2026
21st October 2026
22nd October 2026
23rd October 2026
24th October 2026
25th October 2026
26th October 2026
27th October 2026
28th October 2026
29th October 2026
30th October 2026
31st October 2026
1st November 2026
2nd November 2026
3rd November 2026
4th November 2026
5th November 2026
6th November 2026
7th November 2026
8th November 2026
9th November 2026
10th November 2026
11th November 2026
12th November 2026
13th November 2026
14th November 2026
15th November 2026
16th November 2026
17th November 2026
18th November 2026
19th November 2026
20th November 2026
21st November 2026
22nd November 2026
23rd November 2026
24th November 2026
25th November 2026
26th November 2026
27th November 2026
28th November 2026
29th November 2026
30th November 2026
1st December 2026
2nd December 2026
3rd December 2026
4th December 2026
5th December 2026
6th December 2026
7th December 2026
8th December 2026
9th December 2026
10th December 2026
11th December 2026
12th December 2026
13th December 2026
14th December 2026
15th December 2026
16th December 2026
17th December 2026
18th December 2026
19th December 2026
20th December 2026
21st December 2026
22nd December 2026
23rd December 2026
24th December 2026
25th December 2026
26th December 2026
27th December 2026
28th December 2026
29th December 2026
30th December 2026
31st December 2026

136AQI (US)

128AQI (US)

112AQI (US)

88AQI (US)

72AQI (US)

83AQI (US)

No. of days

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

2026107AQI (US)

6
14
11
5
16
7
1
10
14
6
2
19
9
3
26
2
3
6
69
55
24

Highest AQI (US) recorded in

January

136AQI (US)

Lowest AQI (US) recorded in

May

72AQI (US)

2025102AQI (US)

5
16
9
1
6
14
8
13
15
2
1
6
22
1
1
17
10
2
1
1
30
31
31
3
27
4
19
8
2
5
16
7
1
13
17
9
191
114
46
4
1

Highest AQI (US) recorded in

December

154AQI (US)

Lowest AQI (US) recorded in

September

59AQI (US)

202499AQI (US)

1
4
15
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
85
35
2

Highest AQI (US) recorded in

February

138AQI (US)

Lowest AQI (US) recorded in

July

65AQI (US)

202396AQI (US)

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 (US) recorded in

February

140AQI (US)

Lowest AQI (US) recorded in

August

58AQI (US)

20219AQI (US)

1
1

Highest AQI (US) recorded in

January

9AQI (US)

Lowest AQI (US) recorded in

January

9AQI (US)

2020107AQI (US)

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 (US) recorded in

December

155AQI (US)

Lowest AQI (US) recorded in

August

69AQI (US)

Most & Least Polluted Years Over the Last 6 Years

Most Polluted Year Recorded
2026(Avg.)
107AQI (US)
Least Polluted Year Recorded
2021(Avg.)
9AQI (US)

Cotan's annual 2026 AQI (US) (107) shows an average percentage change of 222.6% (worsened AQI (US)) compared to previous years: 2020 (107), 2021 (9), 2023 (96), 2024 (99), 2025 (102).