Zichang County Environmental Protection Bureau, Yanan, 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
Zichang County Environmental Protection Bureau, Yanan, Shaanxi, China
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
17th Aug 2023
125AQILowest AQI recorded on
8th Aug 2024
34AQISame Day Analysis (3rd August ):
On this day, AQI across the 4 years varied significantly: 2025 ranks 1st highest AQI at 63 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 3rd Aug - 4th Aug 2025
Zichang County Environmental Protection Bureau, Yanan, Shaanxi, China
AQI
Day
Night
.
5 AM3rd Aug 2025
7 PM
4 AM4th Aug 2025
Day time
Avg. Highest Time
9AM3rd Aug
72AQI
Avg. Lowest Time
3PM3rd Aug
61AQI
Night time
Avg. Highest Time
10PM3rd Aug
66AQI
Avg. Lowest Time
2AM4th Aug
61AQI
In the last 24 hours,
Zichang County Environmental Protection Bureau's AQI reached its highest point of 72 at 9 AM during the Day, while the lowest point, 61, was recorded at 2 AM during the Night between 3rd Aug and 4th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Zichang County Environmental Protection Bureau, Yanan, 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 2025575 AMAQI
5th Jul 2025576 AMAQI
5th Jul 2025567 AMAQI
5th Jul 2025548 AMAQI
5th Jul 2025529 AMAQI
5th Jul 20253710 AMAQI
5th Jul 20253211 AMAQI
5th Jul 20253912 PMAQI
5th Jul 2025391 PMAQI
5th Jul 2025352 PMAQI
5th Jul 2025303 PMAQI
5th Jul 2025354 PMAQI
5th Jul 2025415 PMAQI
5th Jul 2025406 PMAQI
5th Jul 2025457 PMAQI
5th Jul 2025528 PMAQI
5th Jul 2025549 PMAQI
5th Jul 20255510 PMAQI
5th Jul 20255611 PMAQI
6th Jul 20255812 AMAQI
6th Jul 2025561 AMAQI
6th Jul 2025562 AMAQI
6th Jul 2025553 AMAQI
6th Jul 2025554 AMAQI
22°C18/27°C
6th Jul 2025555 AMAQI
6th Jul 2025546 AMAQI
6th Jul 2025547 AMAQI
6th Jul 2025558 AMAQI
6th Jul 2025609 AMAQI
6th Jul 20255510 AMAQI
6th Jul 20255011 AMAQI
6th Jul 20254612 PMAQI
6th Jul 2025491 PMAQI
6th Jul 2025482 PMAQI
6th Jul 2025483 PMAQI
6th Jul 2025524 PMAQI
6th Jul 2025495 PMAQI
6th Jul 2025456 PMAQI
6th Jul 2025507 PMAQI
6th Jul 2025548 PMAQI
6th Jul 2025569 PMAQI
6th Jul 20255710 PMAQI
6th Jul 20255811 PMAQI
7th Jul 20255712 AMAQI
7th Jul 2025561 AMAQI
7th Jul 2025542 AMAQI
7th Jul 2025553 AMAQI
7th Jul 2025544 AMAQI
23°C21/27°C
7th Jul 2025555 AMAQI
7th Jul 2025546 AMAQI
7th Jul 2025547 AMAQI
7th Jul 2025558 AMAQI
7th Jul 2025579 AMAQI
7th Jul 20256210 AMAQI
7th Jul 20255311 AMAQI
7th Jul 20255512 PMAQI
7th Jul 2025531 PMAQI
7th Jul 2025462 PMAQI
7th Jul 2025533 PMAQI
7th Jul 2025424 PMAQI
7th Jul 2025495 PMAQI
7th Jul 2025456 PMAQI
7th Jul 2025507 PMAQI
7th Jul 2025528 PMAQI
7th Jul 2025559 PMAQI
7th Jul 20255610 PMAQI
7th Jul 20255511 PMAQI
8th Jul 20255512 AMAQI
8th Jul 2025541 AMAQI
8th Jul 2025542 AMAQI
8th Jul 2025553 AMAQI
8th Jul 2025554 AMAQI
23°C19/28°C
8th Jul 2025555 AMAQI
8th Jul 2025556 AMAQI
8th Jul 2025557 AMAQI
8th Jul 2025608 AMAQI
8th Jul 2025549 AMAQI
8th Jul 20255210 AMAQI
8th Jul 20254411 AMAQI
8th Jul 20254512 PMAQI
8th Jul 2025441 PMAQI
8th Jul 2025342 PMAQI
8th Jul 2025303 PMAQI
8th Jul 2025294 PMAQI
8th Jul 2025405 PMAQI
8th Jul 2025386 PMAQI
8th Jul 2025467 PMAQI
8th Jul 2025528 PMAQI
8th Jul 2025549 PMAQI
8th Jul 20255410 PMAQI
8th Jul 20255411 PMAQI
9th Jul 20255612 AMAQI
9th Jul 2025551 AMAQI
9th Jul 2025552 AMAQI
9th Jul 2025553 AMAQI
9th Jul 2025544 AMAQI
23°C21/26°C
9th Jul 2025545 AMAQI
9th Jul 2025546 AMAQI
9th Jul 2025547 AMAQI
9th Jul 2025698 AMAQI
9th Jul 2025639 AMAQI
9th Jul 20255810 AMAQI
9th Jul 20254311 AMAQI
9th Jul 20254312 PMAQI
9th Jul 2025441 PMAQI
9th Jul 2025422 PMAQI
9th Jul 2025423 PMAQI
9th Jul 2025404 PMAQI
9th Jul 2025505 PMAQI
9th Jul 2025486 PMAQI
9th Jul 2025557 PMAQI
9th Jul 2025568 PMAQI
9th Jul 2025579 PMAQI
9th Jul 20255810 PMAQI
9th Jul 20256011 PMAQI
10th Jul 20256012 AMAQI
10th Jul 2025551 AMAQI
10th Jul 2025552 AMAQI
10th Jul 2025553 AMAQI
10th Jul 2025554 AMAQI
22°C20/25°C
10th Jul 2025565 AMAQI
10th Jul 2025556 AMAQI
10th Jul 2025557 AMAQI
10th Jul 2025768 AMAQI
10th Jul 2025879 AMAQI
10th Jul 20257910 AMAQI
10th Jul 20257311 AMAQI
10th Jul 20256612 PMAQI
10th Jul 2025651 PMAQI
10th Jul 2025592 PMAQI
10th Jul 2025583 PMAQI
10th Jul 2025554 PMAQI
10th Jul 2025565 PMAQI
10th Jul 2025556 PMAQI
10th Jul 2025547 PMAQI
10th Jul 2025608 PMAQI
10th Jul 2025609 PMAQI
10th Jul 20255810 PMAQI
10th Jul 20255711 PMAQI
11th Jul 20255812 AMAQI
11th Jul 2025571 AMAQI
11th Jul 2025562 AMAQI
11th Jul 2025573 AMAQI
11th Jul 2025594 AMAQI
24°C20/28°C
11th Jul 2025595 AMAQI
11th Jul 2025606 AMAQI
11th Jul 2025587 AMAQI
11th Jul 2025678 AMAQI
11th Jul 2025769 AMAQI
11th Jul 20259010 AMAQI
11th Jul 20259611 AMAQI
11th Jul 20258912 PMAQI
11th Jul 2025861 PMAQI
11th Jul 2025802 PMAQI
11th Jul 2025943 PMAQI
11th Jul 2025794 PMAQI
11th Jul 2025725 PMAQI
11th Jul 2025706 PMAQI
11th Jul 2025667 PMAQI
11th Jul 2025648 PMAQI
11th Jul 2025649 PMAQI
11th Jul 20256510 PMAQI
11th Jul 20256611 PMAQI
12th Jul 20256512 AMAQI
12th Jul 2025601 AMAQI
12th Jul 2025582 AMAQI
12th Jul 2025603 AMAQI
12th Jul 2025634 AMAQI
25°C21/29°C
12th Jul 2025625 AMAQI
12th Jul 2025626 AMAQI
12th Jul 2025627 AMAQI
12th Jul 2025888 AMAQI
12th Jul 20251029 AMAQI
12th Jul 202510010 AMAQI
12th Jul 20259811 AMAQI
12th Jul 20259012 PMAQI
12th Jul 2025861 PMAQI
12th Jul 2025852 PMAQI
12th Jul 2025863 PMAQI
12th Jul 2025804 PMAQI
12th Jul 2025785 PMAQI
12th Jul 2025806 PMAQI
12th Jul 2025767 PMAQI
12th Jul 2025698 PMAQI
12th Jul 2025689 PMAQI
12th Jul 20256910 PMAQI
12th Jul 20257011 PMAQI
13th Jul 20257212 AMAQI
13th Jul 2025641 AMAQI
13th Jul 2025622 AMAQI
13th Jul 2025643 AMAQI
13th Jul 2025664 AMAQI
25°C21/30°C
13th Jul 2025665 AMAQI
13th Jul 2025676 AMAQI
13th Jul 2025667 AMAQI
13th Jul 2025828 AMAQI
13th Jul 2025849 AMAQI
13th Jul 20259010 AMAQI
13th Jul 20258711 AMAQI
13th Jul 20258112 PMAQI
13th Jul 2025801 PMAQI
13th Jul 2025762 PMAQI
13th Jul 2025763 PMAQI
13th Jul 2025734 PMAQI
13th Jul 2025725 PMAQI
13th Jul 2025696 PMAQI
13th Jul 2025687 PMAQI
13th Jul 2025678 PMAQI
13th Jul 2025669 PMAQI
13th Jul 20256810 PMAQI
13th Jul 20256811 PMAQI
14th Jul 20257012 AMAQI
14th Jul 2025681 AMAQI
14th Jul 2025642 AMAQI
14th Jul 2025653 AMAQI
14th Jul 2025674 AMAQI
27°C23/31°C
14th Jul 2025685 AMAQI
14th Jul 2025686 AMAQI
14th Jul 2025687 AMAQI
14th Jul 2025728 AMAQI
14th Jul 2025769 AMAQI
14th Jul 20257210 AMAQI
14th Jul 20257211 AMAQI
14th Jul 20257012 PMAQI
14th Jul 2025701 PMAQI
14th Jul 2025672 PMAQI
14th Jul 2025643 PMAQI
14th Jul 2025654 PMAQI
14th Jul 2025665 PMAQI
14th Jul 2025666 PMAQI
14th Jul 2025687 PMAQI
14th Jul 2025678 PMAQI
14th Jul 2025679 PMAQI
14th Jul 20256810 PMAQI
14th Jul 20257311 PMAQI
15th Jul 20257412 AMAQI
15th Jul 2025661 AMAQI
15th Jul 2025672 AMAQI
15th Jul 2025673 AMAQI
15th Jul 2025684 AMAQI
28°C24/33°C
15th Jul 2025685 AMAQI
15th Jul 2025686 AMAQI
15th Jul 2025687 AMAQI
15th Jul 2025718 AMAQI
15th Jul 2025749 AMAQI
15th Jul 20257410 AMAQI
15th Jul 20257211 AMAQI
15th Jul 20257112 PMAQI
15th Jul 2025701 PMAQI
15th Jul 2025682 PMAQI
15th Jul 2025653 PMAQI
15th Jul 2025674 PMAQI
15th Jul 2025665 PMAQI
15th Jul 2025696 PMAQI
15th Jul 2025717 PMAQI
15th Jul 2025718 PMAQI
15th Jul 2025709 PMAQI
15th Jul 20256810 PMAQI
15th Jul 20256611 PMAQI
16th Jul 20256612 AMAQI
16th Jul 2025661 AMAQI
16th Jul 2025672 AMAQI
16th Jul 2025683 AMAQI
16th Jul 2025684 AMAQI
31°C25/36°C
16th Jul 2025685 AMAQI
16th Jul 2025686 AMAQI
16th Jul 2025697 AMAQI
16th Jul 2025608 AMAQI
16th Jul 2025589 AMAQI
16th Jul 20255410 AMAQI
16th Jul 20255311 AMAQI
16th Jul 20254612 PMAQI
16th Jul 2025401 PMAQI
16th Jul 2025352 PMAQI
16th Jul 2025383 PMAQI
16th Jul 2025344 PMAQI
16th Jul 2025385 PMAQI
16th Jul 2025366 PMAQI
16th Jul 2025487 PMAQI
16th Jul 2025608 PMAQI
16th Jul 2025609 PMAQI
16th Jul 20256010 PMAQI
16th Jul 20255911 PMAQI
17th Jul 20256012 AMAQI
17th Jul 2025641 AMAQI
17th Jul 2025642 AMAQI
17th Jul 2025643 AMAQI
17th Jul 2025634 AMAQI
28°C24/31°C
17th Jul 2025635 AMAQI
17th Jul 2025636 AMAQI
17th Jul 2025647 AMAQI
17th Jul 2025558 AMAQI
17th Jul 2025549 AMAQI
17th Jul 20255210 AMAQI
17th Jul 20255211 AMAQI
17th Jul 20255012 PMAQI
17th Jul 2025481 PMAQI
17th Jul 2025452 PMAQI
17th Jul 2025433 PMAQI
17th Jul 2025464 PMAQI
17th Jul 2025485 PMAQI
17th Jul 2025486 PMAQI
17th Jul 2025537 PMAQI
17th Jul 2025608 PMAQI
17th Jul 2025609 PMAQI
17th Jul 20256010 PMAQI
17th Jul 20256011 PMAQI
18th Jul 20256112 AMAQI
18th Jul 2025631 AMAQI
18th Jul 2025622 AMAQI
18th Jul 2025623 AMAQI
18th Jul 2025614 AMAQI
28°C23/33°C
18th Jul 2025625 AMAQI
18th Jul 2025616 AMAQI
18th Jul 2025617 AMAQI
18th Jul 2025578 AMAQI
18th Jul 2025599 AMAQI
18th Jul 20256210 AMAQI
18th Jul 20256911 AMAQI
18th Jul 20256812 PMAQI
18th Jul 2025681 PMAQI
18th Jul 2025662 PMAQI
18th Jul 2025623 PMAQI
18th Jul 2025644 PMAQI
18th Jul 2025635 PMAQI
18th Jul 2025666 PMAQI
18th Jul 2025687 PMAQI
18th Jul 2025668 PMAQI
18th Jul 2025669 PMAQI
18th Jul 20256410 PMAQI
18th Jul 20256611 PMAQI
19th Jul 20256612 AMAQI
19th Jul 2025631 AMAQI
19th Jul 2025622 AMAQI
19th Jul 2025623 AMAQI
19th Jul 2025624 AMAQI
28°C24/32°C
19th Jul 2025625 AMAQI
19th Jul 2025636 AMAQI
19th Jul 2025627 AMAQI
19th Jul 2025728 AMAQI
19th Jul 2025759 AMAQI
19th Jul 20257310 AMAQI
19th Jul 20257211 AMAQI
19th Jul 20257212 PMAQI
19th Jul 2025671 PMAQI
19th Jul 2025612 PMAQI
19th Jul 2025683 PMAQI
19th Jul 2025724 PMAQI
19th Jul 2025625 PMAQI
19th Jul 2025586 PMAQI
19th Jul 2025627 PMAQI
19th Jul 2025638 PMAQI
19th Jul 2025649 PMAQI
19th Jul 20256210 PMAQI
19th Jul 20256111 PMAQI
20th Jul 20255812 AMAQI
20th Jul 2025621 AMAQI
20th Jul 2025632 AMAQI
20th Jul 2025643 AMAQI
20th Jul 2025644 AMAQI
25°C23/28°C
20th Jul 2025645 AMAQI
20th Jul 2025646 AMAQI
20th Jul 2025647 AMAQI
20th Jul 2025518 AMAQI
20th Jul 2025429 AMAQI
20th Jul 20254810 AMAQI
20th Jul 20254611 AMAQI
20th Jul 20254612 PMAQI
20th Jul 2025441 PMAQI
20th Jul 2025432 PMAQI
20th Jul 2025443 PMAQI
20th Jul 2025444 PMAQI
20th Jul 2025475 PMAQI
20th Jul 2025396 PMAQI
20th Jul 2025447 PMAQI
20th Jul 2025568 PMAQI
20th Jul 2025579 PMAQI
20th Jul 20255710 PMAQI
20th Jul 20255811 PMAQI
21st Jul 20255912 AMAQI
21st Jul 2025621 AMAQI
21st Jul 2025632 AMAQI
21st Jul 2025623 AMAQI
21st Jul 2025604 AMAQI
25°C22/29°C
21st Jul 2025615 AMAQI
21st Jul 2025606 AMAQI
21st Jul 2025617 AMAQI
21st Jul 2025588 AMAQI
21st Jul 2025619 AMAQI
21st Jul 20256210 AMAQI
21st Jul 20254911 AMAQI
21st Jul 20254612 PMAQI
21st Jul 2025501 PMAQI
21st Jul 2025462 PMAQI
21st Jul 2025503 PMAQI
21st Jul 2025484 PMAQI
21st Jul 2025505 PMAQI
21st Jul 2025526 PMAQI
21st Jul 2025557 PMAQI
21st Jul 2025588 PMAQI
21st Jul 2025609 PMAQI
21st Jul 20255810 PMAQI
21st Jul 20256011 PMAQI
22nd Jul 20255712 AMAQI
22nd Jul 2025611 AMAQI
22nd Jul 2025602 AMAQI
22nd Jul 2025603 AMAQI
22nd Jul 2025594 AMAQI
25°C21/29°C
22nd Jul 2025605 AMAQI
22nd Jul 2025596 AMAQI
22nd Jul 2025597 AMAQI
22nd Jul 2025628 AMAQI
22nd Jul 2025669 AMAQI
22nd Jul 20257810 AMAQI
22nd Jul 20257611 AMAQI
22nd Jul 20256912 PMAQI
22nd Jul 2025701 PMAQI
22nd Jul 2025702 PMAQI
22nd Jul 2025663 PMAQI
22nd Jul 2025654 PMAQI
22nd Jul 2025605 PMAQI
22nd Jul 2025606 PMAQI
22nd Jul 2025607 PMAQI
22nd Jul 2025588 PMAQI
22nd Jul 2025609 PMAQI
22nd Jul 20256210 PMAQI
22nd Jul 20256211 PMAQI
23rd Jul 20256412 AMAQI
23rd Jul 2025611 AMAQI
23rd Jul 2025602 AMAQI
23rd Jul 2025603 AMAQI
23rd Jul 2025624 AMAQI
25°C21/28°C
23rd Jul 2025615 AMAQI
23rd Jul 2025626 AMAQI
23rd Jul 2025627 AMAQI
23rd Jul 2025668 AMAQI
23rd Jul 2025669 AMAQI
23rd Jul 20256210 AMAQI
23rd Jul 20255911 AMAQI
23rd Jul 20255212 PMAQI
23rd Jul 2025531 PMAQI
23rd Jul 2025452 PMAQI
23rd Jul 2025443 PMAQI
23rd Jul 2025544 PMAQI
23rd Jul 2025435 PMAQI
23rd Jul 2025486 PMAQI
23rd Jul 2025547 PMAQI
23rd Jul 2025548 PMAQI
23rd Jul 2025579 PMAQI
23rd Jul 20255810 PMAQI
23rd Jul 20255811 PMAQI
24th Jul 20255612 AMAQI
24th Jul 2025591 AMAQI
24th Jul 2025602 AMAQI
24th Jul 2025603 AMAQI
24th Jul 2025614 AMAQI
24°C21/28°C
24th Jul 2025605 AMAQI
24th Jul 2025616 AMAQI
24th Jul 2025617 AMAQI
24th Jul 2025508 AMAQI
24th Jul 2025479 AMAQI
24th Jul 20254610 AMAQI
24th Jul 20255011 AMAQI
24th Jul 20254312 PMAQI
24th Jul 2025381 PMAQI
24th Jul 2025362 PMAQI
24th Jul 2025303 PMAQI
24th Jul 2025364 PMAQI
24th Jul 2025375 PMAQI
24th Jul 2025406 PMAQI
24th Jul 2025527 PMAQI
24th Jul 2025578 PMAQI
24th Jul 2025579 PMAQI
24th Jul 20255510 PMAQI
24th Jul 20255611 PMAQI
25th Jul 20255612 AMAQI
25th Jul 2025591 AMAQI
25th Jul 2025602 AMAQI
25th Jul 2025603 AMAQI
25th Jul 2025584 AMAQI
25°C22/29°C
25th Jul 2025575 AMAQI
25th Jul 2025576 AMAQI
25th Jul 2025587 AMAQI
25th Jul 2025568 AMAQI
25th Jul 2025519 AMAQI
25th Jul 20255410 AMAQI
25th Jul 20255511 AMAQI
25th Jul 20255312 PMAQI
25th Jul 2025531 PMAQI
25th Jul 2025532 PMAQI
25th Jul 2025513 PMAQI
25th Jul 2025474 PMAQI
25th Jul 2025535 PMAQI
25th Jul 2025506 PMAQI
25th Jul 2025547 PMAQI
25th Jul 2025568 PMAQI
25th Jul 2025589 PMAQI
25th Jul 20255410 PMAQI
25th Jul 20255311 PMAQI
26th Jul 20255412 AMAQI
26th Jul 2025561 AMAQI
26th Jul 2025582 AMAQI
26th Jul 2025583 AMAQI
26th Jul 2025584 AMAQI
24°C22/27°C
26th Jul 2025575 AMAQI
26th Jul 2025576 AMAQI
26th Jul 2025577 AMAQI
26th Jul 2025598 AMAQI
26th Jul 2025519 AMAQI
26th Jul 20255510 AMAQI
26th Jul 20255711 AMAQI
26th Jul 20255712 PMAQI
26th Jul 2025521 PMAQI
26th Jul 2025542 PMAQI
26th Jul 2025513 PMAQI
26th Jul 2025504 PMAQI
26th Jul 2025475 PMAQI
26th Jul 2025406 PMAQI
26th Jul 2025487 PMAQI
26th Jul 2025548 PMAQI
26th Jul 2025549 PMAQI
26th Jul 20255610 PMAQI
26th Jul 20255611 PMAQI
27th Jul 20255512 AMAQI
27th Jul 2025581 AMAQI
27th Jul 2025582 AMAQI
27th Jul 2025583 AMAQI
27th Jul 2025574 AMAQI
24°C21/29°C
27th Jul 2025575 AMAQI
27th Jul 2025576 AMAQI
27th Jul 2025577 AMAQI
27th Jul 2025488 AMAQI
27th Jul 2025409 AMAQI
27th Jul 20254710 AMAQI
27th Jul 20254611 AMAQI
27th Jul 20255412 PMAQI
27th Jul 2025551 PMAQI
27th Jul 2025572 PMAQI
27th Jul 2025583 PMAQI
27th Jul 2025604 PMAQI
27th Jul 2025545 PMAQI
27th Jul 2025576 PMAQI
27th Jul 2025587 PMAQI
27th Jul 2025608 PMAQI
27th Jul 2025609 PMAQI
27th Jul 20256210 PMAQI
27th Jul 20256111 PMAQI
28th Jul 20256012 AMAQI
28th Jul 2025591 AMAQI
28th Jul 2025582 AMAQI
28th Jul 2025573 AMAQI
28th Jul 2025574 AMAQI
26°C21/31°C
28th Jul 2025575 AMAQI
28th Jul 2025576 AMAQI
28th Jul 2025577 AMAQI
28th Jul 2025628 AMAQI
28th Jul 2025689 AMAQI
28th Jul 20257210 AMAQI
28th Jul 20256711 AMAQI
28th Jul 20256712 PMAQI
28th Jul 2025621 PMAQI
28th Jul 2025642 PMAQI
28th Jul 2025643 PMAQI
28th Jul 2025644 PMAQI
28th Jul 2025615 PMAQI
28th Jul 2025606 PMAQI
28th Jul 2025617 PMAQI
28th Jul 2025618 PMAQI
28th Jul 2025609 PMAQI
28th Jul 20256410 PMAQI
28th Jul 20256511 PMAQI
29th Jul 20256312 AMAQI
29th Jul 2025591 AMAQI
29th Jul 2025582 AMAQI
29th Jul 2025583 AMAQI
29th Jul 2025604 AMAQI
27°C23/31°C
29th Jul 2025615 AMAQI
29th Jul 2025616 AMAQI
29th Jul 2025617 AMAQI
29th Jul 2025568 AMAQI
29th Jul 2025569 AMAQI
29th Jul 20255310 AMAQI
29th Jul 20255111 AMAQI
29th Jul 20255612 PMAQI
29th Jul 2025581 PMAQI
29th Jul 2025612 PMAQI
29th Jul 2025633 PMAQI
29th Jul 2025604 PMAQI
29th Jul 2025565 PMAQI
29th Jul 2025566 PMAQI
29th Jul 2025587 PMAQI
29th Jul 2025578 PMAQI
29th Jul 2025579 PMAQI
29th Jul 20256010 PMAQI
29th Jul 20256011 PMAQI
30th Jul 20256012 AMAQI
30th Jul 2025601 AMAQI
30th Jul 2025602 AMAQI
30th Jul 2025603 AMAQI
30th Jul 2025594 AMAQI
27°C24/31°C
30th Jul 2025595 AMAQI
30th Jul 2025586 AMAQI
30th Jul 2025597 AMAQI
30th Jul 2025628 AMAQI
30th Jul 2025719 AMAQI
30th Jul 20256310 AMAQI
30th Jul 20255211 AMAQI
30th Jul 20255812 PMAQI
30th Jul 2025601 PMAQI
30th Jul 2025532 PMAQI
30th Jul 2025423 PMAQI
30th Jul 2025474 PMAQI
30th Jul 2025485 PMAQI
30th Jul 2025546 PMAQI
30th Jul 2025537 PMAQI
30th Jul 2025598 PMAQI
30th Jul 2025609 PMAQI
30th Jul 20255910 PMAQI
30th Jul 20255911 PMAQI
31st Jul 20255812 AMAQI
31st Jul 2025601 AMAQI
31st Jul 2025602 AMAQI
31st Jul 2025593 AMAQI
31st Jul 2025594 AMAQI
27°C22/32°C
31st Jul 2025595 AMAQI
31st Jul 2025596 AMAQI
31st Jul 2025597 AMAQI
31st Jul 2025598 AMAQI
31st Jul 2025599 AMAQI
31st Jul 20256210 AMAQI
31st Jul 20256311 AMAQI
31st Jul 20256712 PMAQI
31st Jul 2025611 PMAQI
31st Jul 2025682 PMAQI
31st Jul 2025633 PMAQI
31st Jul 2025674 PMAQI
31st Jul 2025635 PMAQI
31st Jul 2025626 PMAQI
31st Jul 2025657 PMAQI
31st Jul 2025658 PMAQI
31st Jul 2025639 PMAQI
31st Jul 20256410 PMAQI
31st Jul 20256311 PMAQI
1st Aug 20255912 AMAQI
1st Aug 2025591 AMAQI
1st Aug 2025592 AMAQI
1st Aug 2025593 AMAQI
1st Aug 2025584 AMAQI
25°C21/31°C
1st Aug 2025585 AMAQI
1st Aug 2025596 AMAQI
1st Aug 2025587 AMAQI
1st Aug 2025688 AMAQI
1st Aug 2025649 AMAQI
1st Aug 20256610 AMAQI
1st Aug 20256611 AMAQI
1st Aug 20256212 PMAQI
1st Aug 2025701 PMAQI
1st Aug 2025672 PMAQI
1st Aug 2025663 PMAQI
1st Aug 2025664 PMAQI
1st Aug 2025625 PMAQI
1st Aug 2025636 PMAQI
1st Aug 2025617 PMAQI
1st Aug 2025668 PMAQI
1st Aug 2025649 PMAQI
1st Aug 20256610 PMAQI
1st Aug 20256211 PMAQI
2nd Aug 20256412 AMAQI
2nd Aug 2025581 AMAQI
2nd Aug 2025582 AMAQI
2nd Aug 2025593 AMAQI
2nd Aug 2025614 AMAQI
25°C22/30°C
2nd Aug 2025615 AMAQI
2nd Aug 2025626 AMAQI
2nd Aug 2025607 AMAQI
2nd Aug 2025768 AMAQI
2nd Aug 2025799 AMAQI
2nd Aug 20257010 AMAQI
2nd Aug 20257411 AMAQI
2nd Aug 20256712 PMAQI
2nd Aug 2025661 PMAQI
2nd Aug 2025632 PMAQI
2nd Aug 2025623 PMAQI
2nd Aug 2025604 PMAQI
2nd Aug 2025545 PMAQI
2nd Aug 2025636 PMAQI
2nd Aug 2025607 PMAQI
2nd Aug 2025648 PMAQI
2nd Aug 2025659 PMAQI
2nd Aug 20256710 PMAQI
2nd Aug 20256611 PMAQI
3rd Aug 20256412 AMAQI
3rd Aug 2025601 AMAQI
3rd Aug 2025602 AMAQI
3rd Aug 2025623 AMAQI
3rd Aug 2025624 AMAQI
27°C22/32°C
3rd Aug 2025625 AMAQI
3rd Aug 2025626 AMAQI
3rd Aug 2025627 AMAQI
3rd Aug 2025688 AMAQI
3rd Aug 2025729 AMAQI
3rd Aug 20256910 AMAQI
3rd Aug 20256811 AMAQI
3rd Aug 20256812 PMAQI
3rd Aug 2025641 PMAQI
3rd Aug 2025622 PMAQI
3rd Aug 2025613 PMAQI
3rd Aug 2025624 PMAQI
3rd Aug 2025625 PMAQI
3rd Aug 2025646 PMAQI
3rd Aug 2025647 PMAQI
3rd Aug 2025648 PMAQI
3rd Aug 2025649 PMAQI
3rd Aug 20256610 PMAQI
3rd Aug 20256611 PMAQI
4th Aug 20256512 AMAQI
4th Aug 2025621 AMAQI
4th Aug 2025612 AMAQI
4th Aug 2025623 AMAQI
4th Aug 2025634 AMAQI
29°C24/33°C
4th Aug 2025635 AMAQI
5 AM4th Aug 2025636 AMAQI
4th Aug 2025637 AMAQI
4th Aug 2025568 AMAQI
12 PM
7 PM
12 AM
4 AM
--°C/°C
Day time
Avg. Highest Time
5 AM - 1 PM
61AQI
9 hours / Day
270 hours / Month
Avg. Lowest Time
2 PM - 6 PM
55AQI
5 hours / Day
150 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 1 PM (Avg. 61), while the lowest AQI was between 2 PM to 6 PM (Avg. 55).
Night time
Avg. Highest Time
12 AM - 11 PM
60AQI
9 hours / Day
270 hours / Month
Avg. Lowest Time
12 AM - 11 PM
60AQI
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. 60), while the lowest AQI was between 12 AM to 11 PM (Avg. 60).
2025 Days Vs Air Quality
Zichang County Environmental Protection Bureau, Yanan, Shaanxi, China
2025
3%
6
72%
155
19%
40
4%
8
1%
3
1%
3
Total number of days with different AQI categories in last 216 days in 2025 (149 days remaining)
Good
6 DaysModerate
155 DaysPoor
40 DaysUnhealthy
8 DaysSevere
3 DaysHazardous
3 DaysUnder WHO’s Safe Air Quality Limits: 3%
Health Risk Level:
Extreme
In 2025, 3% of 216 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
Zichang County Environmental Protection Bureau, Yanan, 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
103AQI
103AQI
2nd January 2025
95AQI
95AQI
3rd January 2025
103AQI
103AQI
4th January 2025
121AQI
121AQI
5th January 2025
101AQI
101AQI
6th January 2025
89AQI
89AQI
7th January 2025
91AQI
91AQI
8th January 2025
74AQI
74AQI
9th January 2025
88AQI
88AQI
10th January 2025
89AQI
89AQI
11th January 2025
90AQI
90AQI
12th January 2025
89AQI
89AQI
13th January 2025
137AQI
137AQI
14th January 2025
69AQI
69AQI
15th January 2025
92AQI
92AQI
16th January 2025
88AQI
88AQI
17th January 2025
98AQI
98AQI
18th January 2025
109AQI
109AQI
19th January 2025
97AQI
97AQI
20th January 2025
107AQI
107AQI
21st January 2025
107AQI
107AQI
22nd January 2025
129AQI
129AQI
23rd January 2025
146AQI
146AQI
24th January 2025
162AQI
162AQI
25th January 2025
104AQI
104AQI
26th January 2025
96AQI
96AQI
27th January 2025
75AQI
75AQI
28th January 2025
113AQI
113AQI
29th January 2025
129AQI
129AQI
30th January 2025
124AQI
124AQI
31st January 2025
115AQI
115AQI
1st February 2025
111AQI
111AQI
2nd February 2025
79AQI
79AQI
3rd February 2025
85AQI
85AQI
4th February 2025
76AQI
76AQI
5th February 2025
64AQI
64AQI
6th February 2025
136AQI
136AQI
7th February 2025
54AQI
54AQI
8th February 2025
70AQI
70AQI
9th February 2025
79AQI
79AQI
10th February 2025
98AQI
98AQI
11th February 2025
99AQI
99AQI
12th February 2025
85AQI
85AQI
13th February 2025
93AQI
93AQI
14th February 2025
74AQI
74AQI
15th February 2025
74AQI
74AQI
16th February 2025
64AQI
64AQI
17th February 2025
74AQI
74AQI
18th February 2025
68AQI
68AQI
19th February 2025
65AQI
65AQI
20th February 2025
71AQI
71AQI
21st February 2025
77AQI
77AQI
22nd February 2025
42AQI
42AQI
23rd February 2025
49AQI
49AQI
24th February 2025
53AQI
53AQI
25th February 2025
64AQI
64AQI
26th February 2025
64AQI
64AQI
27th February 2025
70AQI
70AQI
28th February 2025
68AQI
68AQI
1st March 2025
91AQI
91AQI
2nd March 2025
78AQI
78AQI
3rd March 2025
63AQI
63AQI
4th March 2025
64AQI
64AQI
5th March 2025
70AQI
70AQI
6th March 2025
71AQI
71AQI
7th March 2025
76AQI
76AQI
8th March 2025
76AQI
76AQI
9th March 2025
79AQI
79AQI
10th March 2025
79AQI
79AQI
11th March 2025
179AQI
179AQI
12th March 2025
96AQI
96AQI
13th March 2025
87AQI
87AQI
14th March 2025
86AQI
86AQI
15th March 2025
63AQI
63AQI
16th March 2025
63AQI
63AQI
17th March 2025
61AQI
61AQI
18th March 2025
70AQI
70AQI
19th March 2025
63AQI
63AQI
20th March 2025
62AQI
62AQI
21st March 2025
79AQI
79AQI
22nd March 2025
87AQI
87AQI
23rd March 2025
312AQI
312AQI
24th March 2025
502AQI
502AQI
25th March 2025
302AQI
302AQI
26th March 2025
246AQI
246AQI
27th March 2025
160AQI
160AQI
28th March 2025
109AQI
109AQI
29th March 2025
93AQI
93AQI
30th March 2025
82AQI
82AQI
31st March 2025
76AQI
76AQI
1st April 2025
72AQI
72AQI
2nd April 2025
71AQI
71AQI
3rd April 2025
109AQI
109AQI
4th April 2025
107AQI
107AQI
5th April 2025
84AQI
84AQI
6th April 2025
111AQI
111AQI
7th April 2025
107AQI
107AQI
8th April 2025
127AQI
127AQI
9th April 2025
96AQI
96AQI
10th April 2025
92AQI
92AQI
11th April 2025
178AQI
178AQI
12th April 2025
115AQI
115AQI
13th April 2025
139AQI
139AQI
14th April 2025
73AQI
73AQI
15th April 2025
93AQI
93AQI
16th April 2025
141AQI
141AQI
17th April 2025
132AQI
132AQI
18th April 2025
131AQI
131AQI
19th April 2025
112AQI
112AQI
20th April 2025
110AQI
110AQI
21st April 2025
277AQI
277AQI
22nd April 2025
146AQI
146AQI
23rd April 2025
110AQI
110AQI
24th April 2025
87AQI
87AQI
25th April 2025
89AQI
89AQI
26th April 2025
86AQI
86AQI
27th April 2025
68AQI
68AQI
28th April 2025
66AQI
66AQI
29th April 2025
94AQI
94AQI
30th April 2025
173AQI
173AQI
1st May 2025
91AQI
91AQI
2nd May 2025
136AQI
136AQI
3rd May 2025
72AQI
72AQI
4th May 2025
103AQI
103AQI
5th May 2025
230AQI
230AQI
6th May 2025
164AQI
164AQI
7th May 2025
152AQI
152AQI
8th May 2025
148AQI
148AQI
9th May 2025
104AQI
104AQI
10th May 2025
98AQI
98AQI
11th May 2025
77AQI
77AQI
12th May 2025
89AQI
89AQI
13th May 2025
93AQI
93AQI
14th May 2025
82AQI
82AQI
15th May 2025
81AQI
81AQI
16th May 2025
159AQI
159AQI
17th May 2025
98AQI
98AQI
18th May 2025
101AQI
101AQI
19th May 2025
96AQI
96AQI
20th May 2025
95AQI
95AQI
21st May 2025
95AQI
95AQI
22nd May 2025
121AQI
121AQI
23rd May 2025
103AQI
103AQI
24th May 2025
112AQI
112AQI
25th May 2025
81AQI
81AQI
26th May 2025
78AQI
78AQI
27th May 2025
74AQI
74AQI
28th May 2025
87AQI
87AQI
29th May 2025
86AQI
86AQI
30th May 2025
86AQI
86AQI
31st May 2025
64AQI
64AQI
1st June 2025
71AQI
71AQI
2nd June 2025
60AQI
60AQI
3rd June 2025
48AQI
48AQI
4th June 2025
48AQI
48AQI
5th June 2025
54AQI
54AQI
6th June 2025
62AQI
62AQI
7th June 2025
65AQI
65AQI
8th June 2025
61AQI
61AQI
9th June 2025
67AQI
67AQI
10th June 2025
62AQI
62AQI
11th June 2025
67AQI
67AQI
12th June 2025
77AQI
77AQI
13th June 2025
70AQI
70AQI
14th June 2025
66AQI
66AQI
15th June 2025
63AQI
63AQI
16th June 2025
61AQI
61AQI
17th June 2025
62AQI
62AQI
18th June 2025
64AQI
64AQI
19th June 2025
61AQI
61AQI
20th June 2025
60AQI
60AQI
21st June 2025
58AQI
58AQI
22nd June 2025
53AQI
53AQI
23rd June 2025
58AQI
58AQI
24th June 2025
63AQI
63AQI
25th June 2025
63AQI
63AQI
26th June 2025
59AQI
59AQI
27th June 2025
60AQI
60AQI
28th June 2025
58AQI
58AQI
29th June 2025
59AQI
59AQI
30th June 2025
58AQI
58AQI
1st July 2025
53AQI
53AQI
2nd July 2025
51AQI
51AQI
3rd July 2025
53AQI
53AQI
4th July 2025
55AQI
55AQI
5th July 2025
48AQI
48AQI
6th July 2025
54AQI
54AQI
7th July 2025
54AQI
54AQI
8th July 2025
50AQI
50AQI
9th July 2025
54AQI
54AQI
10th July 2025
60AQI
60AQI
11th July 2025
67AQI
67AQI
12th July 2025
72AQI
72AQI
13th July 2025
71AQI
71AQI
14th July 2025
68AQI
68AQI
15th July 2025
70AQI
70AQI
16th July 2025
58AQI
58AQI
17th July 2025
57AQI
57AQI
18th July 2025
63AQI
63AQI
19th July 2025
65AQI
65AQI
20th July 2025
54AQI
54AQI
21st July 2025
57AQI
57AQI
22nd July 2025
61AQI
61AQI
23rd July 2025
58AQI
58AQI
24th July 2025
52AQI
52AQI
25th July 2025
55AQI
55AQI
26th July 2025
54AQI
54AQI
27th July 2025
56AQI
56AQI
28th July 2025
61AQI
61AQI
29th July 2025
59AQI
59AQI
30th July 2025
58AQI
58AQI
31st July 2025
61AQI
61AQI
1st August 2025
62AQI
62AQI
2nd August 2025
64AQI
64AQI
3rd August 2025
63AQI
63AQI
104AQI
75AQI
117AQI
113AQI
105AQI
61AQI
58AQI
63AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202590AQI
15
15
1
2
24
2
24
1
2
1
3
13
14
2
1
19
8
3
1
2
28
2
29
3
6
155
40
8
3
3
Highest AQI recorded in
March117AQI
Lowest AQI recorded in
July58AQI
202468AQI
22
3
4
3
1
5
1
5
1
14
30
2
29
9
22
5
22
2
11
19
1
9
19
2
26
5
39
217
16
Highest AQI recorded in
February96AQI
Lowest AQI recorded in
April56AQI
202397AQI
2
7
10
11
7
12
3
1
1
1
3
1
2
1
5
1
2
12
1
25
18
1
1
1
1
6
7
2
3
13
13
1
11
97
46
20
1
Highest AQI recorded in
March202AQI
Lowest AQI recorded in
October47AQI
202287AQI
14
6
1
13
15
2
1
14
8
1
1
27
3
2
28
8
13
1
3
25
3
21
6
1
17
12
1
13
16
2
17
186
66
7
2
Highest AQI recorded in
March113AQI
Lowest AQI recorded in
August58AQI
2020103AQI
4
7
2
16
4
1
1
6
1
1
1
26
11
4
1
Highest AQI recorded in
March115AQI
Lowest AQI recorded in
April91AQI
Most & Least Polluted Years Over the Last 5 Years
Most Polluted Year Recorded
2020(Avg.)
103AQILeast Polluted Year Recorded
2024(Avg.)
68AQIZichang County Environmental Protection Bureau's annual 2025 AQI (90) shows an average percentage change of 4.7% (worsened AQI) compared to previous years: 2020 (103), 2022 (87), 2023 (97), 2024 (68).
