Wanquan County Environmental Protection Bureau, Zhangjiakou, Hebei, 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
Wanquan County Environmental Protection Bureau, Zhangjiakou, Hebei, China
2021
2022
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
2nd Aug 2022
82AQILowest AQI recorded on
1st Aug 2021
1AQISame Day Analysis (5th 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: 5th Aug - 6th Aug 2025
Wanquan County Environmental Protection Bureau, Zhangjiakou, Hebei, China
AQI
Day
Night
.
5 AM5th Aug 2025
7 PM
4 AM6th Aug 2025
Day time
Avg. Highest Time
9AM5th Aug
78AQI
Avg. Lowest Time
6PM5th Aug
38AQI
Night time
Avg. Highest Time
10PM5th Aug
64AQI
Avg. Lowest Time
8PM5th Aug
60AQI
In the last 24 hours,
Wanquan County Environmental Protection Bureau's AQI reached its highest point of 78 at 9 AM during the Day, while the lowest point, 38, was recorded at 6 PM during the Day between 5th Aug and 6th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Wanquan County Environmental Protection Bureau, Zhangjiakou, Hebei, China
JulAug
07th - 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 - 05th05th - 06th06th
Day
Night
7th Jul 2025605 AMAQI
7th Jul 2025606 AMAQI
7th Jul 2025607 AMAQI
7th Jul 2025508 AMAQI
7th Jul 2025529 AMAQI
7th Jul 20255410 AMAQI
7th Jul 20255411 AMAQI
7th Jul 20255712 PMAQI
7th Jul 2025551 PMAQI
7th Jul 2025532 PMAQI
7th Jul 2025543 PMAQI
7th Jul 2025544 PMAQI
7th Jul 2025575 PMAQI
7th Jul 2025586 PMAQI
7th Jul 2025587 PMAQI
7th Jul 2025618 PMAQI
7th Jul 2025609 PMAQI
7th Jul 20256110 PMAQI
7th Jul 20256011 PMAQI
8th Jul 20256112 AMAQI
8th Jul 2025601 AMAQI
8th Jul 2025602 AMAQI
8th Jul 2025603 AMAQI
8th Jul 2025594 AMAQI
22°C18/27°C
8th Jul 2025605 AMAQI
8th Jul 2025596 AMAQI
8th Jul 2025597 AMAQI
8th Jul 2025628 AMAQI
8th Jul 2025659 AMAQI
8th Jul 20256010 AMAQI
8th Jul 20255911 AMAQI
8th Jul 20256112 PMAQI
8th Jul 2025591 PMAQI
8th Jul 2025582 PMAQI
8th Jul 2025593 PMAQI
8th Jul 2025584 PMAQI
8th Jul 2025605 PMAQI
8th Jul 2025606 PMAQI
8th Jul 2025617 PMAQI
8th Jul 2025628 PMAQI
8th Jul 2025629 PMAQI
8th Jul 20256210 PMAQI
8th Jul 20256211 PMAQI
9th Jul 20256212 AMAQI
9th Jul 2025601 AMAQI
9th Jul 2025592 AMAQI
9th Jul 2025603 AMAQI
9th Jul 2025604 AMAQI
24°C19/29°C
9th Jul 2025605 AMAQI
9th Jul 2025606 AMAQI
9th Jul 2025607 AMAQI
9th Jul 2025748 AMAQI
9th Jul 2025749 AMAQI
9th Jul 20257210 AMAQI
9th Jul 20258111 AMAQI
9th Jul 20258012 PMAQI
9th Jul 2025761 PMAQI
9th Jul 2025762 PMAQI
9th Jul 2025713 PMAQI
9th Jul 2025744 PMAQI
9th Jul 2025735 PMAQI
9th Jul 2025726 PMAQI
9th Jul 2025687 PMAQI
9th Jul 2025658 PMAQI
9th Jul 2025649 PMAQI
9th Jul 20256310 PMAQI
9th Jul 20256211 PMAQI
10th Jul 20256112 AMAQI
10th Jul 2025611 AMAQI
10th Jul 2025612 AMAQI
10th Jul 2025613 AMAQI
10th Jul 2025624 AMAQI
23°C20/27°C
10th Jul 2025635 AMAQI
10th Jul 2025636 AMAQI
10th Jul 2025637 AMAQI
10th Jul 2025658 AMAQI
10th Jul 2025549 AMAQI
10th Jul 20255210 AMAQI
10th Jul 20255311 AMAQI
10th Jul 20256512 PMAQI
10th Jul 2025621 PMAQI
10th Jul 2025622 PMAQI
10th Jul 2025623 PMAQI
10th Jul 2025654 PMAQI
10th Jul 2025665 PMAQI
10th Jul 2025626 PMAQI
10th Jul 2025647 PMAQI
10th Jul 2025648 PMAQI
10th Jul 2025669 PMAQI
10th Jul 20256510 PMAQI
10th Jul 20256411 PMAQI
11th Jul 20256412 AMAQI
11th Jul 2025621 AMAQI
11th Jul 2025612 AMAQI
11th Jul 2025623 AMAQI
11th Jul 2025614 AMAQI
23°C20/28°C
11th Jul 2025615 AMAQI
11th Jul 2025626 AMAQI
11th Jul 2025617 AMAQI
11th Jul 2025808 AMAQI
11th Jul 2025729 AMAQI
11th Jul 20257410 AMAQI
11th Jul 20258411 AMAQI
11th Jul 20258012 PMAQI
11th Jul 2025751 PMAQI
11th Jul 2025712 PMAQI
11th Jul 2025763 PMAQI
11th Jul 2025814 PMAQI
11th Jul 2025845 PMAQI
11th Jul 2025846 PMAQI
11th Jul 2025837 PMAQI
11th Jul 2025728 PMAQI
11th Jul 2025739 PMAQI
11th Jul 20257410 PMAQI
11th Jul 20257211 PMAQI
12th Jul 20257212 AMAQI
12th Jul 2025641 AMAQI
12th Jul 2025632 AMAQI
12th Jul 2025643 AMAQI
12th Jul 2025654 AMAQI
25°C20/31°C
12th Jul 2025655 AMAQI
12th Jul 2025656 AMAQI
12th Jul 2025667 AMAQI
12th Jul 2025948 AMAQI
12th Jul 20251109 AMAQI
12th Jul 20259910 AMAQI
12th Jul 202511011 AMAQI
12th Jul 202510312 PMAQI
12th Jul 2025981 PMAQI
12th Jul 2025942 PMAQI
12th Jul 2025743 PMAQI
12th Jul 2025624 PMAQI
12th Jul 2025585 PMAQI
12th Jul 2025596 PMAQI
12th Jul 2025617 PMAQI
12th Jul 2025648 PMAQI
12th Jul 2025649 PMAQI
12th Jul 20256610 PMAQI
12th Jul 20256511 PMAQI
13th Jul 20256612 AMAQI
13th Jul 2025661 AMAQI
13th Jul 2025672 AMAQI
13th Jul 2025683 AMAQI
13th Jul 2025684 AMAQI
26°C21/31°C
13th Jul 2025705 AMAQI
13th Jul 2025696 AMAQI
13th Jul 2025687 AMAQI
13th Jul 2025548 AMAQI
13th Jul 2025389 AMAQI
13th Jul 20254410 AMAQI
13th Jul 20253711 AMAQI
13th Jul 20255212 PMAQI
13th Jul 2025531 PMAQI
13th Jul 2025532 PMAQI
13th Jul 2025523 PMAQI
13th Jul 2025494 PMAQI
13th Jul 2025465 PMAQI
13th Jul 2025526 PMAQI
13th Jul 2025527 PMAQI
13th Jul 2025628 PMAQI
13th Jul 2025629 PMAQI
13th Jul 20256210 PMAQI
13th Jul 20256211 PMAQI
14th Jul 20256412 AMAQI
14th Jul 2025661 AMAQI
14th Jul 2025672 AMAQI
14th Jul 2025663 AMAQI
14th Jul 2025654 AMAQI
27°C21/33°C
14th Jul 2025645 AMAQI
14th Jul 2025646 AMAQI
14th Jul 2025657 AMAQI
14th Jul 2025478 AMAQI
14th Jul 2025489 AMAQI
14th Jul 20255510 AMAQI
14th Jul 20255311 AMAQI
14th Jul 20255612 PMAQI
14th Jul 2025571 PMAQI
14th Jul 2025562 PMAQI
14th Jul 2025663 PMAQI
14th Jul 2025634 PMAQI
14th Jul 2025665 PMAQI
14th Jul 2025686 PMAQI
14th Jul 2025697 PMAQI
14th Jul 2025688 PMAQI
14th Jul 2025749 PMAQI
14th Jul 20257510 PMAQI
14th Jul 20257411 PMAQI
15th Jul 20257812 AMAQI
15th Jul 2025671 AMAQI
15th Jul 2025652 AMAQI
15th Jul 2025643 AMAQI
15th Jul 2025634 AMAQI
25°C21/29°C
15th Jul 2025645 AMAQI
15th Jul 2025636 AMAQI
15th Jul 2025637 AMAQI
15th Jul 2025868 AMAQI
15th Jul 2025759 AMAQI
15th Jul 20257410 AMAQI
15th Jul 20256911 AMAQI
15th Jul 20257112 PMAQI
15th Jul 2025711 PMAQI
15th Jul 2025742 PMAQI
15th Jul 2025733 PMAQI
15th Jul 2025624 PMAQI
15th Jul 2025575 PMAQI
15th Jul 2025536 PMAQI
15th Jul 2025557 PMAQI
15th Jul 2025618 PMAQI
15th Jul 2025609 PMAQI
15th Jul 20256010 PMAQI
15th Jul 20256111 PMAQI
16th Jul 20256112 AMAQI
16th Jul 2025651 AMAQI
16th Jul 2025652 AMAQI
16th Jul 2025663 AMAQI
16th Jul 2025694 AMAQI
25°C19/32°C
16th Jul 2025695 AMAQI
16th Jul 2025686 AMAQI
16th Jul 2025707 AMAQI
16th Jul 2025578 AMAQI
16th Jul 2025399 AMAQI
16th Jul 20254210 AMAQI
16th Jul 20254611 AMAQI
16th Jul 20255412 PMAQI
16th Jul 2025541 PMAQI
16th Jul 2025512 PMAQI
16th Jul 2025493 PMAQI
16th Jul 2025434 PMAQI
16th Jul 2025525 PMAQI
16th Jul 2025506 PMAQI
16th Jul 2025507 PMAQI
16th Jul 2025628 PMAQI
16th Jul 2025629 PMAQI
16th Jul 20256210 PMAQI
16th Jul 20256211 PMAQI
17th Jul 20256112 AMAQI
17th Jul 2025641 AMAQI
17th Jul 2025662 AMAQI
17th Jul 2025633 AMAQI
17th Jul 2025624 AMAQI
24°C21/28°C
17th Jul 2025625 AMAQI
17th Jul 2025616 AMAQI
17th Jul 2025617 AMAQI
17th Jul 2025308 AMAQI
17th Jul 2025269 AMAQI
17th Jul 20252810 AMAQI
17th Jul 20252611 AMAQI
17th Jul 20255212 PMAQI
17th Jul 2025521 PMAQI
17th Jul 2025522 PMAQI
17th Jul 2025483 PMAQI
17th Jul 2025474 PMAQI
17th Jul 2025505 PMAQI
17th Jul 2025516 PMAQI
17th Jul 2025537 PMAQI
17th Jul 2025608 PMAQI
17th Jul 2025629 PMAQI
17th Jul 20256210 PMAQI
17th Jul 20256111 PMAQI
18th Jul 20256112 AMAQI
18th Jul 2025621 AMAQI
18th Jul 2025622 AMAQI
18th Jul 2025623 AMAQI
18th Jul 2025604 AMAQI
25°C18/32°C
18th Jul 2025595 AMAQI
18th Jul 2025606 AMAQI
18th Jul 2025607 AMAQI
18th Jul 2025508 AMAQI
18th Jul 2025439 AMAQI
18th Jul 20255310 AMAQI
18th Jul 20255311 AMAQI
18th Jul 20255512 PMAQI
18th Jul 2025541 PMAQI
18th Jul 2025542 PMAQI
18th Jul 2025553 PMAQI
18th Jul 2025574 PMAQI
18th Jul 2025555 PMAQI
18th Jul 2025566 PMAQI
18th Jul 2025597 PMAQI
18th Jul 2025618 PMAQI
18th Jul 2025639 PMAQI
18th Jul 20256410 PMAQI
18th Jul 20256211 PMAQI
19th Jul 20256112 AMAQI
19th Jul 2025611 AMAQI
19th Jul 2025602 AMAQI
19th Jul 2025603 AMAQI
19th Jul 2025594 AMAQI
26°C20/32°C
19th Jul 2025605 AMAQI
19th Jul 2025596 AMAQI
19th Jul 2025597 AMAQI
19th Jul 2025738 AMAQI
19th Jul 2025789 AMAQI
19th Jul 20257310 AMAQI
19th Jul 20257211 AMAQI
19th Jul 20257312 PMAQI
19th Jul 2025771 PMAQI
19th Jul 2025722 PMAQI
19th Jul 2025743 PMAQI
19th Jul 2025734 PMAQI
19th Jul 2025775 PMAQI
19th Jul 2025806 PMAQI
19th Jul 2025777 PMAQI
19th Jul 2025678 PMAQI
19th Jul 2025679 PMAQI
19th Jul 20256610 PMAQI
19th Jul 20256811 PMAQI
20th Jul 20256812 AMAQI
20th Jul 2025631 AMAQI
20th Jul 2025622 AMAQI
20th Jul 2025623 AMAQI
20th Jul 2025614 AMAQI
22°C20/25°C
20th Jul 2025615 AMAQI
20th Jul 2025606 AMAQI
20th Jul 2025607 AMAQI
20th Jul 2025468 AMAQI
20th Jul 2025289 AMAQI
20th Jul 20252710 AMAQI
20th Jul 20252611 AMAQI
20th Jul 20253912 PMAQI
20th Jul 2025411 PMAQI
20th Jul 2025422 PMAQI
20th Jul 2025443 PMAQI
20th Jul 2025444 PMAQI
20th Jul 2025425 PMAQI
20th Jul 2025436 PMAQI
20th Jul 2025487 PMAQI
20th Jul 2025568 PMAQI
20th Jul 2025579 PMAQI
20th Jul 20255610 PMAQI
20th Jul 20255711 PMAQI
21st Jul 20255712 AMAQI
21st Jul 2025621 AMAQI
21st Jul 2025622 AMAQI
21st Jul 2025623 AMAQI
21st Jul 2025604 AMAQI
23°C18/28°C
21st Jul 2025605 AMAQI
21st Jul 2025596 AMAQI
21st Jul 2025597 AMAQI
21st Jul 2025428 AMAQI
21st Jul 2025439 AMAQI
21st Jul 20253810 AMAQI
21st Jul 20254511 AMAQI
21st Jul 20255412 PMAQI
21st Jul 2025501 PMAQI
21st Jul 2025482 PMAQI
21st Jul 2025443 PMAQI
21st Jul 2025404 PMAQI
21st Jul 2025425 PMAQI
21st Jul 2025426 PMAQI
21st Jul 2025457 PMAQI
21st Jul 2025578 PMAQI
21st Jul 2025609 PMAQI
21st Jul 20256010 PMAQI
21st Jul 20256011 PMAQI
22nd Jul 20256012 AMAQI
22nd Jul 2025581 AMAQI
22nd Jul 2025582 AMAQI
22nd Jul 2025603 AMAQI
22nd Jul 2025594 AMAQI
24°C19/30°C
22nd Jul 2025595 AMAQI
22nd Jul 2025586 AMAQI
22nd Jul 2025587 AMAQI
22nd Jul 2025468 AMAQI
22nd Jul 2025529 AMAQI
22nd Jul 20255210 AMAQI
22nd Jul 20255311 AMAQI
22nd Jul 20255812 PMAQI
22nd Jul 2025531 PMAQI
22nd Jul 2025512 PMAQI
22nd Jul 2025573 PMAQI
22nd Jul 2025564 PMAQI
22nd Jul 2025555 PMAQI
22nd Jul 2025566 PMAQI
22nd Jul 2025547 PMAQI
22nd Jul 2025578 PMAQI
22nd Jul 2025619 PMAQI
22nd Jul 20256210 PMAQI
22nd Jul 20256211 PMAQI
23rd Jul 20256212 AMAQI
23rd Jul 2025611 AMAQI
23rd Jul 2025612 AMAQI
23rd Jul 2025613 AMAQI
23rd Jul 2025594 AMAQI
24°C19/30°C
23rd Jul 2025595 AMAQI
23rd Jul 2025606 AMAQI
23rd Jul 2025597 AMAQI
23rd Jul 2025788 AMAQI
23rd Jul 2025759 AMAQI
23rd Jul 20256810 AMAQI
23rd Jul 20256811 AMAQI
23rd Jul 20256612 PMAQI
23rd Jul 2025621 PMAQI
23rd Jul 2025602 PMAQI
23rd Jul 2025613 PMAQI
23rd Jul 2025604 PMAQI
23rd Jul 2025625 PMAQI
23rd Jul 2025616 PMAQI
23rd Jul 2025677 PMAQI
23rd Jul 2025628 PMAQI
23rd Jul 2025629 PMAQI
23rd Jul 20256210 PMAQI
23rd Jul 20256211 PMAQI
24th Jul 20256112 AMAQI
24th Jul 2025621 AMAQI
24th Jul 2025622 AMAQI
24th Jul 2025623 AMAQI
24th Jul 2025624 AMAQI
24°C18/30°C
24th Jul 2025625 AMAQI
24th Jul 2025626 AMAQI
24th Jul 2025627 AMAQI
24th Jul 2025568 AMAQI
24th Jul 2025509 AMAQI
24th Jul 20254610 AMAQI
24th Jul 20254411 AMAQI
24th Jul 20254212 PMAQI
24th Jul 2025461 PMAQI
24th Jul 2025492 PMAQI
24th Jul 2025503 PMAQI
24th Jul 2025494 PMAQI
24th Jul 2025525 PMAQI
24th Jul 2025546 PMAQI
24th Jul 2025547 PMAQI
24th Jul 2025608 PMAQI
24th Jul 2025609 PMAQI
24th Jul 20256310 PMAQI
24th Jul 20256211 PMAQI
25th Jul 20256212 AMAQI
25th Jul 2025621 AMAQI
25th Jul 2025622 AMAQI
25th Jul 2025623 AMAQI
25th Jul 2025604 AMAQI
21°C20/24°C
25th Jul 2025605 AMAQI
25th Jul 2025606 AMAQI
25th Jul 2025607 AMAQI
25th Jul 2025478 AMAQI
25th Jul 2025409 AMAQI
25th Jul 20253110 AMAQI
25th Jul 20252911 AMAQI
25th Jul 20254212 PMAQI
25th Jul 2025531 PMAQI
25th Jul 2025562 PMAQI
25th Jul 2025563 PMAQI
25th Jul 2025564 PMAQI
25th Jul 2025565 PMAQI
25th Jul 2025596 PMAQI
25th Jul 2025627 PMAQI
25th Jul 2025628 PMAQI
25th Jul 2025629 PMAQI
25th Jul 20256310 PMAQI
25th Jul 20256411 PMAQI
26th Jul 20256412 AMAQI
26th Jul 2025621 AMAQI
26th Jul 2025602 AMAQI
26th Jul 2025603 AMAQI
26th Jul 2025584 AMAQI
22°C20/25°C
26th Jul 2025585 AMAQI
26th Jul 2025596 AMAQI
26th Jul 2025587 AMAQI
26th Jul 2025668 AMAQI
26th Jul 2025599 AMAQI
26th Jul 20256410 AMAQI
26th Jul 20256811 AMAQI
26th Jul 20257012 PMAQI
26th Jul 2025661 PMAQI
26th Jul 2025652 PMAQI
26th Jul 2025583 PMAQI
26th Jul 2025584 PMAQI
26th Jul 2025555 PMAQI
26th Jul 2025536 PMAQI
26th Jul 2025547 PMAQI
26th Jul 2025608 PMAQI
26th Jul 2025599 PMAQI
26th Jul 20255910 PMAQI
26th Jul 20255811 PMAQI
27th Jul 20255812 AMAQI
27th Jul 2025621 AMAQI
27th Jul 2025592 AMAQI
27th Jul 2025613 AMAQI
27th Jul 2025614 AMAQI
21°C19/24°C
27th Jul 2025615 AMAQI
27th Jul 2025616 AMAQI
27th Jul 2025617 AMAQI
27th Jul 2025588 AMAQI
27th Jul 2025519 AMAQI
27th Jul 20255210 AMAQI
27th Jul 20254711 AMAQI
27th Jul 20255312 PMAQI
27th Jul 2025561 PMAQI
27th Jul 2025602 PMAQI
27th Jul 2025603 PMAQI
27th Jul 2025564 PMAQI
27th Jul 2025565 PMAQI
27th Jul 2025616 PMAQI
27th Jul 2025627 PMAQI
27th Jul 2025608 PMAQI
27th Jul 2025629 PMAQI
27th Jul 20256310 PMAQI
27th Jul 20256411 PMAQI
28th Jul 20256412 AMAQI
28th Jul 2025611 AMAQI
28th Jul 2025612 AMAQI
28th Jul 2025613 AMAQI
28th Jul 2025594 AMAQI
23°C20/26°C
28th Jul 2025605 AMAQI
28th Jul 2025596 AMAQI
28th Jul 2025597 AMAQI
28th Jul 2025628 AMAQI
28th Jul 2025649 AMAQI
28th Jul 20256810 AMAQI
28th Jul 20257211 AMAQI
28th Jul 20257512 PMAQI
28th Jul 2025791 PMAQI
28th Jul 2025692 PMAQI
28th Jul 2025613 PMAQI
28th Jul 2025604 PMAQI
28th Jul 2025605 PMAQI
28th Jul 2025576 PMAQI
28th Jul 2025627 PMAQI
28th Jul 2025618 PMAQI
28th Jul 2025609 PMAQI
28th Jul 20256010 PMAQI
28th Jul 20256011 PMAQI
29th Jul 20256112 AMAQI
29th Jul 2025611 AMAQI
29th Jul 2025612 AMAQI
29th Jul 2025613 AMAQI
29th Jul 2025624 AMAQI
25°C19/30°C
29th Jul 2025625 AMAQI
29th Jul 2025626 AMAQI
29th Jul 2025627 AMAQI
29th Jul 2025578 AMAQI
29th Jul 2025499 AMAQI
29th Jul 20254410 AMAQI
29th Jul 20255211 AMAQI
29th Jul 20255112 PMAQI
29th Jul 2025501 PMAQI
29th Jul 2025482 PMAQI
29th Jul 2025493 PMAQI
29th Jul 2025484 PMAQI
29th Jul 2025385 PMAQI
29th Jul 2025416 PMAQI
29th Jul 2025477 PMAQI
29th Jul 2025578 PMAQI
29th Jul 2025579 PMAQI
29th Jul 20255610 PMAQI
29th Jul 20255811 PMAQI
30th Jul 20255912 AMAQI
30th Jul 2025611 AMAQI
30th Jul 2025612 AMAQI
30th Jul 2025613 AMAQI
30th Jul 2025604 AMAQI
24°C19/29°C
30th Jul 2025595 AMAQI
30th Jul 2025586 AMAQI
30th Jul 2025597 AMAQI
30th Jul 2025328 AMAQI
30th Jul 2025389 AMAQI
30th Jul 20252610 AMAQI
30th Jul 20252011 AMAQI
30th Jul 20253412 PMAQI
30th Jul 2025341 PMAQI
30th Jul 2025372 PMAQI
30th Jul 2025443 PMAQI
30th Jul 2025424 PMAQI
30th Jul 2025385 PMAQI
30th Jul 2025366 PMAQI
30th Jul 2025457 PMAQI
30th Jul 2025548 PMAQI
30th Jul 2025559 PMAQI
30th Jul 20255610 PMAQI
30th Jul 20255611 PMAQI
31st Jul 20255812 AMAQI
31st Jul 2025591 AMAQI
31st Jul 2025592 AMAQI
31st Jul 2025603 AMAQI
31st Jul 2025604 AMAQI
21°C16/26°C
31st Jul 2025605 AMAQI
31st Jul 2025606 AMAQI
31st Jul 2025607 AMAQI
31st Jul 2025608 AMAQI
31st Jul 2025609 AMAQI
31st Jul 20255610 AMAQI
31st Jul 20255611 AMAQI
31st Jul 20255612 PMAQI
31st Jul 2025571 PMAQI
31st Jul 2025592 PMAQI
31st Jul 2025583 PMAQI
31st Jul 2025584 PMAQI
31st Jul 2025565 PMAQI
31st Jul 2025576 PMAQI
31st Jul 2025627 PMAQI
31st Jul 2025648 PMAQI
31st Jul 2025629 PMAQI
31st Jul 20256510 PMAQI
31st Jul 20256511 PMAQI
1st Aug 20256512 AMAQI
1st Aug 2025591 AMAQI
1st Aug 2025572 AMAQI
1st Aug 2025593 AMAQI
1st Aug 2025584 AMAQI
20°C18/21°C
1st Aug 2025585 AMAQI
1st Aug 2025586 AMAQI
1st Aug 2025607 AMAQI
1st Aug 2025748 AMAQI
1st Aug 2025679 AMAQI
1st Aug 20256910 AMAQI
1st Aug 20256411 AMAQI
1st Aug 20256612 PMAQI
1st Aug 2025721 PMAQI
1st Aug 2025702 PMAQI
1st Aug 2025773 PMAQI
1st Aug 2025764 PMAQI
1st Aug 2025695 PMAQI
1st Aug 2025716 PMAQI
1st Aug 2025677 PMAQI
1st Aug 2025658 PMAQI
1st Aug 2025689 PMAQI
1st Aug 20257010 PMAQI
1st Aug 20257211 PMAQI
2nd Aug 20256412 AMAQI
2nd Aug 2025581 AMAQI
2nd Aug 2025582 AMAQI
2nd Aug 2025603 AMAQI
2nd Aug 2025624 AMAQI
23°C17/30°C
2nd Aug 2025625 AMAQI
2nd Aug 2025626 AMAQI
2nd Aug 2025627 AMAQI
2nd Aug 2025808 AMAQI
2nd Aug 2025719 AMAQI
2nd Aug 20256610 AMAQI
2nd Aug 20257311 AMAQI
2nd Aug 20257412 PMAQI
2nd Aug 2025801 PMAQI
2nd Aug 2025722 PMAQI
2nd Aug 2025743 PMAQI
2nd Aug 2025704 PMAQI
2nd Aug 2025695 PMAQI
2nd Aug 2025696 PMAQI
2nd Aug 2025687 PMAQI
2nd Aug 2025608 PMAQI
2nd Aug 2025619 PMAQI
2nd Aug 20256910 PMAQI
2nd Aug 20256411 PMAQI
3rd Aug 20256612 AMAQI
3rd Aug 2025601 AMAQI
3rd Aug 2025602 AMAQI
3rd Aug 2025623 AMAQI
3rd Aug 2025644 AMAQI
24°C19/30°C
3rd Aug 2025635 AMAQI
3rd Aug 2025636 AMAQI
3rd Aug 2025637 AMAQI
3rd Aug 2025708 AMAQI
3rd Aug 2025709 AMAQI
3rd Aug 20256610 AMAQI
3rd Aug 20257011 AMAQI
3rd Aug 20256812 PMAQI
3rd Aug 2025641 PMAQI
3rd Aug 2025642 PMAQI
3rd Aug 2025633 PMAQI
3rd Aug 2025624 PMAQI
3rd Aug 2025625 PMAQI
3rd Aug 2025626 PMAQI
3rd Aug 2025627 PMAQI
3rd Aug 2025638 PMAQI
3rd Aug 2025609 PMAQI
3rd Aug 20256410 PMAQI
3rd Aug 20256611 PMAQI
4th Aug 20256512 AMAQI
4th Aug 2025621 AMAQI
4th Aug 2025622 AMAQI
4th Aug 2025623 AMAQI
4th Aug 2025634 AMAQI
25°C19/30°C
4th Aug 2025625 AMAQI
4th Aug 2025626 AMAQI
4th Aug 2025627 AMAQI
4th Aug 2025728 AMAQI
4th Aug 2025689 AMAQI
4th Aug 20257310 AMAQI
4th Aug 20256711 AMAQI
4th Aug 20256612 PMAQI
4th Aug 2025621 PMAQI
4th Aug 2025602 PMAQI
4th Aug 2025623 PMAQI
4th Aug 2025574 PMAQI
4th Aug 2025625 PMAQI
4th Aug 2025626 PMAQI
4th Aug 2025637 PMAQI
4th Aug 2025658 PMAQI
4th Aug 2025629 PMAQI
4th Aug 20256410 PMAQI
4th Aug 20256611 PMAQI
5th Aug 20256212 AMAQI
5th Aug 2025601 AMAQI
5th Aug 2025602 AMAQI
5th Aug 2025623 AMAQI
5th Aug 2025634 AMAQI
24°C21/28°C
5th Aug 2025635 AMAQI
5th Aug 2025626 AMAQI
5th Aug 2025627 AMAQI
5th Aug 2025748 AMAQI
5th Aug 2025789 AMAQI
5th Aug 20256810 AMAQI
5th Aug 20256411 AMAQI
5th Aug 20255812 PMAQI
5th Aug 2025551 PMAQI
5th Aug 2025572 PMAQI
5th Aug 2025533 PMAQI
5th Aug 2025574 PMAQI
5th Aug 2025535 PMAQI
5th Aug 2025386 PMAQI
5th Aug 2025517 PMAQI
5th Aug 2025608 PMAQI
5th Aug 2025629 PMAQI
5th Aug 20256410 PMAQI
5th Aug 20256411 PMAQI
6th Aug 20256412 AMAQI
6th Aug 2025621 AMAQI
6th Aug 2025622 AMAQI
6th Aug 2025623 AMAQI
6th Aug 2025614 AMAQI
26°C20/33°C
6th Aug 2025635 AMAQI
5 AM6th Aug 2025626 AMAQI
6th Aug 2025647 AMAQI
6th Aug 2025608 AMAQI
6th Aug 2025609 AMAQI
6th Aug 20256210 AMAQI
6th Aug 20255911 AMAQI
6th Aug 20256012 PMAQI
12 PM6th Aug 2025561 PMAQI
7 PM
12 AM
4 AM
--°C/°C
Day time
Avg. Highest Time
5 AM - 7 PM
59AQI
15 hours / Day
450 hours / Month
Avg. Lowest Time
9 AM - 11 AM
57AQI
3 hours / Day
90 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 7 PM (Avg. 59), while the lowest AQI was between 9 AM to 11 AM (Avg. 57).
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
Wanquan County Environmental Protection Bureau, Zhangjiakou, Hebei, China
2025
14%
31
77%
168
7%
15
1%
3
Total number of days with different AQI categories in last 218 days in 2025 (147 days remaining)
Good
31 DaysModerate
168 DaysPoor
15 DaysUnhealthy
3 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 14%
Health Risk Level:
Extreme
In 2025, 14% of 218 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
Wanquan County Environmental Protection Bureau, Zhangjiakou, Hebei, 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
61AQI
61AQI
2nd January 2025
57AQI
57AQI
3rd January 2025
61AQI
61AQI
4th January 2025
65AQI
65AQI
5th January 2025
57AQI
57AQI
6th January 2025
41AQI
41AQI
7th January 2025
42AQI
42AQI
8th January 2025
37AQI
37AQI
9th January 2025
46AQI
46AQI
10th January 2025
48AQI
48AQI
11th January 2025
68AQI
68AQI
12th January 2025
59AQI
59AQI
13th January 2025
71AQI
71AQI
14th January 2025
45AQI
45AQI
15th January 2025
57AQI
57AQI
16th January 2025
63AQI
63AQI
17th January 2025
82AQI
82AQI
18th January 2025
72AQI
72AQI
19th January 2025
68AQI
68AQI
20th January 2025
83AQI
83AQI
21st January 2025
59AQI
59AQI
22nd January 2025
92AQI
92AQI
23rd January 2025
110AQI
110AQI
24th January 2025
121AQI
121AQI
25th January 2025
152AQI
152AQI
26th January 2025
100AQI
100AQI
27th January 2025
73AQI
73AQI
28th January 2025
62AQI
62AQI
29th January 2025
85AQI
85AQI
30th January 2025
111AQI
111AQI
31st January 2025
129AQI
129AQI
1st February 2025
142AQI
142AQI
2nd February 2025
85AQI
85AQI
3rd February 2025
72AQI
72AQI
4th February 2025
57AQI
57AQI
5th February 2025
51AQI
51AQI
6th February 2025
51AQI
51AQI
7th February 2025
41AQI
41AQI
8th February 2025
44AQI
44AQI
9th February 2025
57AQI
57AQI
10th February 2025
88AQI
88AQI
11th February 2025
101AQI
101AQI
12th February 2025
65AQI
65AQI
13th February 2025
79AQI
79AQI
14th February 2025
75AQI
75AQI
15th February 2025
84AQI
84AQI
16th February 2025
46AQI
46AQI
17th February 2025
57AQI
57AQI
18th February 2025
45AQI
45AQI
19th February 2025
50AQI
50AQI
20th February 2025
48AQI
48AQI
21st February 2025
58AQI
58AQI
22nd February 2025
47AQI
47AQI
23rd February 2025
48AQI
48AQI
24th February 2025
70AQI
70AQI
25th February 2025
50AQI
50AQI
26th February 2025
73AQI
73AQI
27th February 2025
99AQI
99AQI
28th February 2025
95AQI
95AQI
1st March 2025
120AQI
120AQI
2nd March 2025
84AQI
84AQI
3rd March 2025
77AQI
77AQI
4th March 2025
84AQI
84AQI
5th March 2025
70AQI
70AQI
6th March 2025
59AQI
59AQI
7th March 2025
81AQI
81AQI
8th March 2025
103AQI
103AQI
9th March 2025
124AQI
124AQI
10th March 2025
146AQI
146AQI
11th March 2025
152AQI
152AQI
12th March 2025
90AQI
90AQI
13th March 2025
133AQI
133AQI
14th March 2025
100AQI
100AQI
15th March 2025
82AQI
82AQI
16th March 2025
62AQI
62AQI
17th March 2025
54AQI
54AQI
18th March 2025
52AQI
52AQI
19th March 2025
48AQI
48AQI
20th March 2025
42AQI
42AQI
21st March 2025
45AQI
45AQI
22nd March 2025
56AQI
56AQI
23rd March 2025
152AQI
152AQI
24th March 2025
64AQI
64AQI
25th March 2025
73AQI
73AQI
26th March 2025
114AQI
114AQI
27th March 2025
63AQI
63AQI
28th March 2025
61AQI
61AQI
29th March 2025
45AQI
45AQI
30th March 2025
56AQI
56AQI
31st March 2025
55AQI
55AQI
1st April 2025
50AQI
50AQI
2nd April 2025
52AQI
52AQI
3rd April 2025
66AQI
66AQI
4th April 2025
60AQI
60AQI
5th April 2025
52AQI
52AQI
6th April 2025
71AQI
71AQI
7th April 2025
58AQI
58AQI
8th April 2025
69AQI
69AQI
9th April 2025
64AQI
64AQI
10th April 2025
71AQI
71AQI
11th April 2025
113AQI
113AQI
12th April 2025
67AQI
67AQI
13th April 2025
71AQI
71AQI
14th April 2025
59AQI
59AQI
15th April 2025
63AQI
63AQI
16th April 2025
102AQI
102AQI
17th April 2025
72AQI
72AQI
18th April 2025
67AQI
67AQI
19th April 2025
63AQI
63AQI
20th April 2025
90AQI
90AQI
21st April 2025
85AQI
85AQI
22nd April 2025
60AQI
60AQI
23rd April 2025
58AQI
58AQI
24th April 2025
49AQI
49AQI
25th April 2025
62AQI
62AQI
26th April 2025
70AQI
70AQI
27th April 2025
44AQI
44AQI
28th April 2025
55AQI
55AQI
29th April 2025
55AQI
55AQI
30th April 2025
53AQI
53AQI
1st May 2025
51AQI
51AQI
2nd May 2025
54AQI
54AQI
3rd May 2025
47AQI
47AQI
4th May 2025
59AQI
59AQI
5th May 2025
97AQI
97AQI
6th May 2025
65AQI
65AQI
7th May 2025
87AQI
87AQI
8th May 2025
95AQI
95AQI
9th May 2025
67AQI
67AQI
10th May 2025
78AQI
78AQI
11th May 2025
66AQI
66AQI
12th May 2025
76AQI
76AQI
13th May 2025
71AQI
71AQI
14th May 2025
65AQI
65AQI
15th May 2025
69AQI
69AQI
16th May 2025
86AQI
86AQI
17th May 2025
65AQI
65AQI
18th May 2025
67AQI
67AQI
19th May 2025
64AQI
64AQI
20th May 2025
84AQI
84AQI
21st May 2025
76AQI
76AQI
22nd May 2025
101AQI
101AQI
23rd May 2025
87AQI
87AQI
24th May 2025
80AQI
80AQI
25th May 2025
78AQI
78AQI
26th May 2025
70AQI
70AQI
27th May 2025
71AQI
71AQI
28th May 2025
74AQI
74AQI
29th May 2025
84AQI
84AQI
30th May 2025
94AQI
94AQI
31st May 2025
73AQI
73AQI
1st June 2025
91AQI
91AQI
2nd June 2025
46AQI
46AQI
3rd June 2025
49AQI
49AQI
4th June 2025
42AQI
42AQI
5th June 2025
52AQI
52AQI
6th June 2025
42AQI
42AQI
7th June 2025
43AQI
43AQI
8th June 2025
46AQI
46AQI
9th June 2025
53AQI
53AQI
10th June 2025
54AQI
54AQI
11th June 2025
64AQI
64AQI
12th June 2025
77AQI
77AQI
13th June 2025
77AQI
77AQI
14th June 2025
74AQI
74AQI
15th June 2025
54AQI
54AQI
16th June 2025
54AQI
54AQI
17th June 2025
62AQI
62AQI
18th June 2025
65AQI
65AQI
19th June 2025
63AQI
63AQI
20th June 2025
59AQI
59AQI
21st June 2025
51AQI
51AQI
22nd June 2025
46AQI
46AQI
23rd June 2025
52AQI
52AQI
24th June 2025
56AQI
56AQI
25th June 2025
62AQI
62AQI
26th June 2025
66AQI
66AQI
27th June 2025
67AQI
67AQI
28th June 2025
67AQI
67AQI
29th June 2025
65AQI
65AQI
30th June 2025
66AQI
66AQI
1st July 2025
63AQI
63AQI
2nd July 2025
63AQI
63AQI
3rd July 2025
60AQI
60AQI
4th July 2025
63AQI
63AQI
5th July 2025
56AQI
56AQI
6th July 2025
54AQI
54AQI
7th July 2025
58AQI
58AQI
8th July 2025
61AQI
61AQI
9th July 2025
66AQI
66AQI
10th July 2025
62AQI
62AQI
11th July 2025
70AQI
70AQI
12th July 2025
72AQI
72AQI
13th July 2025
60AQI
60AQI
14th July 2025
65AQI
65AQI
15th July 2025
67AQI
67AQI
16th July 2025
59AQI
59AQI
17th July 2025
55AQI
55AQI
18th July 2025
58AQI
58AQI
19th July 2025
67AQI
67AQI
20th July 2025
54AQI
54AQI
21st July 2025
54AQI
54AQI
22nd July 2025
57AQI
57AQI
23rd July 2025
63AQI
63AQI
24th July 2025
57AQI
57AQI
25th July 2025
57AQI
57AQI
26th July 2025
60AQI
60AQI
27th July 2025
59AQI
59AQI
28th July 2025
63AQI
63AQI
29th July 2025
55AQI
55AQI
30th July 2025
50AQI
50AQI
31st July 2025
59AQI
59AQI
1st August 2025
66AQI
66AQI
2nd August 2025
66AQI
66AQI
3rd August 2025
66AQI
66AQI
4th August 2025
64AQI
64AQI
5th August 2025
63AQI
63AQI
73AQI
67AQI
82AQI
66AQI
74AQI
59AQI
60AQI
65AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202569AQI
6
20
4
1
9
17
2
4
19
6
2
3
25
2
1
29
1
7
23
1
30
5
31
168
15
3
Highest AQI recorded in
March82AQI
Lowest AQI recorded in
June59AQI
202459AQI
12
8
1
3
1
3
1
1
2
3
5
10
1
29
4
27
19
12
19
8
2
16
12
3
11
15
3
1
10
21
105
147
9
2
Highest AQI recorded in
November70AQI
Lowest AQI recorded in
February41AQI
202348AQI
3
14
17
17
17
Highest AQI recorded in
December51AQI
Lowest AQI recorded in
November17AQI
202264AQI
14
11
2
3
11
8
1
9
13
7
2
11
13
6
16
15
12
14
4
13
11
3
86
88
20
5
Highest AQI recorded in
March78AQI
Lowest AQI recorded in
May51AQI
202157AQI
13
8
4
4
2
10
8
4
6
3
11
8
6
1
2
7
13
5
1
10
16
4
1
10
15
5
20
11
31
30
31
16
10
3
1
17
13
1
198
105
34
17
3
4
Highest AQI recorded in
March150AQI
Lowest AQI recorded in
October1AQI
202075AQI
1
6
3
3
16
5
8
6
4
4
17
8
1
21
10
2
25
4
9
18
2
8
16
5
1
1
13
12
2
3
19
10
2
64
147
45
7
2
Highest AQI recorded in
March102AQI
Lowest AQI recorded in
December52AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2020(Avg.)
75AQILeast Polluted Year Recorded
2023(Avg.)
48AQIWanquan County Environmental Protection Bureau's annual 2025 AQI (69) shows an average percentage change of 16.07% (worsened AQI) compared to previous years: 2020 (75), 2021 (57), 2022 (64), 2023 (48), 2024 (59).
