Zhangbei 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
Zhangbei County Environmental Protection Bureau, Zhangjiakou, Hebei, China
2021
2022
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
1st Aug 2022
80AQILowest AQI recorded on
1st Aug 2021
1AQISame Day Analysis (3rd August ):
On this day, AQI across the 4 years varied significantly: 2025 ranks 1st highest AQI at 65 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
Zhangbei County Environmental Protection Bureau, Zhangjiakou, Hebei, 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
12PM3rd Aug
75AQI
Avg. Lowest Time
2AM4th Aug
60AQI
In the last 24 hours,
Zhangbei County Environmental Protection Bureau's AQI reached its highest point of 75 at 12 PM 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
Zhangbei County Environmental Protection Bureau, Zhangjiakou, Hebei, 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 2025665 AMAQI
5th Jul 2025666 AMAQI
5th Jul 2025657 AMAQI
5th Jul 2025588 AMAQI
5th Jul 2025529 AMAQI
5th Jul 20255110 AMAQI
5th Jul 20255311 AMAQI
5th Jul 20255812 PMAQI
5th Jul 2025541 PMAQI
5th Jul 2025522 PMAQI
5th Jul 2025523 PMAQI
5th Jul 2025534 PMAQI
5th Jul 2025525 PMAQI
5th Jul 2025516 PMAQI
5th Jul 2025527 PMAQI
5th Jul 2025608 PMAQI
5th Jul 2025609 PMAQI
5th Jul 20256010 PMAQI
5th Jul 20256011 PMAQI
6th Jul 20256212 AMAQI
6th Jul 2025631 AMAQI
6th Jul 2025652 AMAQI
6th Jul 2025643 AMAQI
6th Jul 2025624 AMAQI
23°C20/28°C
6th Jul 2025615 AMAQI
6th Jul 2025626 AMAQI
6th Jul 2025627 AMAQI
6th Jul 2025508 AMAQI
6th Jul 2025429 AMAQI
6th Jul 20254010 AMAQI
6th Jul 20253911 AMAQI
6th Jul 20254312 PMAQI
6th Jul 2025401 PMAQI
6th Jul 2025382 PMAQI
6th Jul 2025363 PMAQI
6th Jul 2025354 PMAQI
6th Jul 2025485 PMAQI
6th Jul 2025486 PMAQI
6th Jul 2025537 PMAQI
6th Jul 2025598 PMAQI
6th Jul 2025599 PMAQI
6th Jul 20256010 PMAQI
6th Jul 20256011 PMAQI
7th Jul 20255812 AMAQI
7th Jul 2025621 AMAQI
7th Jul 2025622 AMAQI
7th Jul 2025603 AMAQI
7th Jul 2025584 AMAQI
23°C19/29°C
7th Jul 2025605 AMAQI
7th Jul 2025606 AMAQI
7th Jul 2025597 AMAQI
7th Jul 2025558 AMAQI
7th Jul 2025549 AMAQI
7th Jul 20255810 AMAQI
7th Jul 20255411 AMAQI
7th Jul 20255712 PMAQI
7th Jul 2025551 PMAQI
7th Jul 2025512 PMAQI
7th Jul 2025563 PMAQI
7th Jul 2025594 PMAQI
7th Jul 2025595 PMAQI
7th Jul 2025566 PMAQI
7th Jul 2025577 PMAQI
7th Jul 2025608 PMAQI
7th Jul 2025629 PMAQI
7th Jul 20256410 PMAQI
7th Jul 20256411 PMAQI
8th Jul 20256212 AMAQI
8th Jul 2025601 AMAQI
8th Jul 2025602 AMAQI
8th Jul 2025593 AMAQI
8th Jul 2025584 AMAQI
21°C17/27°C
8th Jul 2025595 AMAQI
8th Jul 2025586 AMAQI
8th Jul 2025587 AMAQI
8th Jul 2025658 AMAQI
8th Jul 2025629 AMAQI
8th Jul 20256310 AMAQI
8th Jul 20256011 AMAQI
8th Jul 20256812 PMAQI
8th Jul 2025681 PMAQI
8th Jul 2025682 PMAQI
8th Jul 2025663 PMAQI
8th Jul 2025684 PMAQI
8th Jul 2025665 PMAQI
8th Jul 2025726 PMAQI
8th Jul 2025757 PMAQI
8th Jul 2025608 PMAQI
8th Jul 2025629 PMAQI
8th Jul 20256310 PMAQI
8th Jul 20256311 PMAQI
9th Jul 20256312 AMAQI
9th Jul 2025621 AMAQI
9th Jul 2025602 AMAQI
9th Jul 2025603 AMAQI
9th Jul 2025614 AMAQI
23°C17/29°C
9th Jul 2025615 AMAQI
9th Jul 2025616 AMAQI
9th Jul 2025627 AMAQI
9th Jul 2025708 AMAQI
9th Jul 2025659 AMAQI
9th Jul 20255810 AMAQI
9th Jul 20256111 AMAQI
9th Jul 20256812 PMAQI
9th Jul 2025691 PMAQI
9th Jul 2025712 PMAQI
9th Jul 2025733 PMAQI
9th Jul 2025714 PMAQI
9th Jul 2025675 PMAQI
9th Jul 2025666 PMAQI
9th Jul 2025647 PMAQI
9th Jul 2025648 PMAQI
9th Jul 2025659 PMAQI
9th Jul 20256210 PMAQI
9th Jul 20256211 PMAQI
10th Jul 20256112 AMAQI
10th Jul 2025601 AMAQI
10th Jul 2025622 AMAQI
10th Jul 2025623 AMAQI
10th Jul 2025624 AMAQI
22°C18/27°C
10th Jul 2025625 AMAQI
10th Jul 2025616 AMAQI
10th Jul 2025627 AMAQI
10th Jul 2025728 AMAQI
10th Jul 2025679 AMAQI
10th Jul 20256410 AMAQI
10th Jul 20256311 AMAQI
10th Jul 20257012 PMAQI
10th Jul 2025661 PMAQI
10th Jul 2025612 PMAQI
10th Jul 2025603 PMAQI
10th Jul 2025644 PMAQI
10th Jul 2025645 PMAQI
10th Jul 2025676 PMAQI
10th Jul 2025647 PMAQI
10th Jul 2025658 PMAQI
10th Jul 2025679 PMAQI
10th Jul 20256610 PMAQI
10th Jul 20256511 PMAQI
11th Jul 20256412 AMAQI
11th Jul 2025611 AMAQI
11th Jul 2025612 AMAQI
11th Jul 2025623 AMAQI
11th Jul 2025644 AMAQI
22°C17/28°C
11th Jul 2025645 AMAQI
11th Jul 2025636 AMAQI
11th Jul 2025647 AMAQI
11th Jul 2025688 AMAQI
11th Jul 2025719 AMAQI
11th Jul 20257610 AMAQI
11th Jul 20258111 AMAQI
11th Jul 20257912 PMAQI
11th Jul 2025711 PMAQI
11th Jul 2025762 PMAQI
11th Jul 2025733 PMAQI
11th Jul 2025744 PMAQI
11th Jul 2025785 PMAQI
11th Jul 2025766 PMAQI
11th Jul 2025767 PMAQI
11th Jul 2025728 PMAQI
11th Jul 2025729 PMAQI
11th Jul 20258310 PMAQI
11th Jul 20257211 PMAQI
12th Jul 20257412 AMAQI
12th Jul 2025651 AMAQI
12th Jul 2025632 AMAQI
12th Jul 2025643 AMAQI
12th Jul 2025654 AMAQI
24°C18/30°C
12th Jul 2025655 AMAQI
12th Jul 2025656 AMAQI
12th Jul 2025667 AMAQI
12th Jul 2025898 AMAQI
12th Jul 2025889 AMAQI
12th Jul 20259210 AMAQI
12th Jul 20258611 AMAQI
12th Jul 20258412 PMAQI
12th Jul 2025711 PMAQI
12th Jul 2025682 PMAQI
12th Jul 2025603 PMAQI
12th Jul 2025604 PMAQI
12th Jul 2025615 PMAQI
12th Jul 2025596 PMAQI
12th Jul 2025607 PMAQI
12th Jul 2025638 PMAQI
12th Jul 2025649 PMAQI
12th Jul 20256610 PMAQI
12th Jul 20256811 PMAQI
13th Jul 20256712 AMAQI
13th Jul 2025661 AMAQI
13th Jul 2025672 AMAQI
13th Jul 2025683 AMAQI
13th Jul 2025704 AMAQI
25°C20/31°C
13th Jul 2025705 AMAQI
13th Jul 2025706 AMAQI
13th Jul 2025707 AMAQI
13th Jul 2025608 AMAQI
13th Jul 2025459 AMAQI
13th Jul 20254810 AMAQI
13th Jul 20255111 AMAQI
13th Jul 20255312 PMAQI
13th Jul 2025531 PMAQI
13th Jul 2025532 PMAQI
13th Jul 2025553 PMAQI
13th Jul 2025584 PMAQI
13th Jul 2025575 PMAQI
13th Jul 2025556 PMAQI
13th Jul 2025597 PMAQI
13th Jul 2025638 PMAQI
13th Jul 2025619 PMAQI
13th Jul 20256210 PMAQI
13th Jul 20256111 PMAQI
14th Jul 20256312 AMAQI
14th Jul 2025661 AMAQI
14th Jul 2025672 AMAQI
14th Jul 2025663 AMAQI
14th Jul 2025664 AMAQI
26°C18/32°C
14th Jul 2025665 AMAQI
14th Jul 2025666 AMAQI
14th Jul 2025667 AMAQI
14th Jul 2025598 AMAQI
14th Jul 2025609 AMAQI
14th Jul 20255310 AMAQI
14th Jul 20255411 AMAQI
14th Jul 20255612 PMAQI
14th Jul 2025581 PMAQI
14th Jul 2025582 PMAQI
14th Jul 2025643 PMAQI
14th Jul 2025634 PMAQI
14th Jul 2025655 PMAQI
14th Jul 2025656 PMAQI
14th Jul 2025677 PMAQI
14th Jul 2025688 PMAQI
14th Jul 2025749 PMAQI
14th Jul 20257510 PMAQI
14th Jul 20257411 PMAQI
15th Jul 20257712 AMAQI
15th Jul 2025681 AMAQI
15th Jul 2025662 AMAQI
15th Jul 2025653 AMAQI
15th Jul 2025664 AMAQI
25°C20/29°C
15th Jul 2025655 AMAQI
15th Jul 2025666 AMAQI
15th Jul 2025657 AMAQI
15th Jul 2025788 AMAQI
15th Jul 2025829 AMAQI
15th Jul 20257710 AMAQI
15th Jul 20256911 AMAQI
15th Jul 20257012 PMAQI
15th Jul 2025671 PMAQI
15th Jul 2025682 PMAQI
15th Jul 2025673 PMAQI
15th Jul 2025664 PMAQI
15th Jul 2025665 PMAQI
15th Jul 2025576 PMAQI
15th Jul 2025617 PMAQI
15th Jul 2025658 PMAQI
15th Jul 2025639 PMAQI
15th Jul 20256410 PMAQI
15th Jul 20256211 PMAQI
16th Jul 20256412 AMAQI
16th Jul 2025671 AMAQI
16th Jul 2025692 AMAQI
16th Jul 2025683 AMAQI
16th Jul 2025704 AMAQI
24°C20/31°C
16th Jul 2025705 AMAQI
16th Jul 2025696 AMAQI
16th Jul 2025707 AMAQI
16th Jul 2025618 AMAQI
16th Jul 2025449 AMAQI
16th Jul 20254610 AMAQI
16th Jul 20254211 AMAQI
16th Jul 20255312 PMAQI
16th Jul 2025561 PMAQI
16th Jul 2025532 PMAQI
16th Jul 2025473 PMAQI
16th Jul 2025504 PMAQI
16th Jul 2025525 PMAQI
16th Jul 2025506 PMAQI
16th Jul 2025527 PMAQI
16th Jul 2025608 PMAQI
16th Jul 2025599 PMAQI
16th Jul 20256010 PMAQI
16th Jul 20256011 PMAQI
17th Jul 20256212 AMAQI
17th Jul 2025661 AMAQI
17th Jul 2025662 AMAQI
17th Jul 2025653 AMAQI
17th Jul 2025634 AMAQI
23°C18/28°C
17th Jul 2025635 AMAQI
17th Jul 2025636 AMAQI
17th Jul 2025637 AMAQI
17th Jul 2025538 AMAQI
17th Jul 2025409 AMAQI
17th Jul 20254610 AMAQI
17th Jul 20255211 AMAQI
17th Jul 20255012 PMAQI
17th Jul 2025521 PMAQI
17th Jul 2025542 PMAQI
17th Jul 2025513 PMAQI
17th Jul 2025504 PMAQI
17th Jul 2025485 PMAQI
17th Jul 2025526 PMAQI
17th Jul 2025547 PMAQI
17th Jul 2025628 PMAQI
17th Jul 2025629 PMAQI
17th Jul 20256310 PMAQI
17th Jul 20256311 PMAQI
18th Jul 20256112 AMAQI
18th Jul 2025621 AMAQI
18th Jul 2025622 AMAQI
18th Jul 2025613 AMAQI
18th Jul 2025614 AMAQI
24°C17/31°C
18th Jul 2025615 AMAQI
18th Jul 2025616 AMAQI
18th Jul 2025627 AMAQI
18th Jul 2025618 AMAQI
18th Jul 2025579 AMAQI
18th Jul 20256110 AMAQI
18th Jul 20255711 AMAQI
18th Jul 20255812 PMAQI
18th Jul 2025581 PMAQI
18th Jul 2025562 PMAQI
18th Jul 2025573 PMAQI
18th Jul 2025594 PMAQI
18th Jul 2025575 PMAQI
18th Jul 2025596 PMAQI
18th Jul 2025617 PMAQI
18th Jul 2025648 PMAQI
18th Jul 2025649 PMAQI
18th Jul 20256510 PMAQI
18th Jul 20256511 PMAQI
19th Jul 20256512 AMAQI
19th Jul 2025611 AMAQI
19th Jul 2025612 AMAQI
19th Jul 2025613 AMAQI
19th Jul 2025624 AMAQI
25°C19/32°C
19th Jul 2025625 AMAQI
19th Jul 2025626 AMAQI
19th Jul 2025627 AMAQI
19th Jul 2025778 AMAQI
19th Jul 2025809 AMAQI
19th Jul 20258110 AMAQI
19th Jul 20257411 AMAQI
19th Jul 20257312 PMAQI
19th Jul 2025771 PMAQI
19th Jul 2025752 PMAQI
19th Jul 2025723 PMAQI
19th Jul 2025694 PMAQI
19th Jul 2025735 PMAQI
19th Jul 2025736 PMAQI
19th Jul 2025707 PMAQI
19th Jul 2025668 PMAQI
19th Jul 2025659 PMAQI
19th Jul 20256410 PMAQI
19th Jul 20256111 PMAQI
20th Jul 20255812 AMAQI
20th Jul 2025591 AMAQI
20th Jul 2025612 AMAQI
20th Jul 2025633 AMAQI
20th Jul 2025664 AMAQI
21°C17/24°C
20th Jul 2025655 AMAQI
20th Jul 2025656 AMAQI
20th Jul 2025657 AMAQI
20th Jul 2025608 AMAQI
20th Jul 2025419 AMAQI
20th Jul 20253610 AMAQI
20th Jul 20254011 AMAQI
20th Jul 20254212 PMAQI
20th Jul 2025421 PMAQI
20th Jul 2025462 PMAQI
20th Jul 2025483 PMAQI
20th Jul 2025484 PMAQI
20th Jul 2025485 PMAQI
20th Jul 2025506 PMAQI
20th Jul 2025507 PMAQI
20th Jul 2025568 PMAQI
20th Jul 2025609 PMAQI
20th Jul 20256110 PMAQI
20th Jul 20256311 PMAQI
21st Jul 20256112 AMAQI
21st Jul 2025601 AMAQI
21st Jul 2025612 AMAQI
21st Jul 2025603 AMAQI
21st Jul 2025594 AMAQI
21°C17/27°C
21st Jul 2025585 AMAQI
21st Jul 2025586 AMAQI
21st Jul 2025607 AMAQI
21st Jul 2025598 AMAQI
21st Jul 2025549 AMAQI
21st Jul 20255710 AMAQI
21st Jul 20255611 AMAQI
21st Jul 20255312 PMAQI
21st Jul 2025481 PMAQI
21st Jul 2025482 PMAQI
21st Jul 2025463 PMAQI
21st Jul 2025484 PMAQI
21st Jul 2025505 PMAQI
21st Jul 2025446 PMAQI
21st Jul 2025467 PMAQI
21st Jul 2025568 PMAQI
21st Jul 2025579 PMAQI
21st Jul 20255910 PMAQI
21st Jul 20256111 PMAQI
22nd Jul 20256012 AMAQI
22nd Jul 2025591 AMAQI
22nd Jul 2025602 AMAQI
22nd Jul 2025603 AMAQI
22nd Jul 2025584 AMAQI
23°C18/30°C
22nd Jul 2025585 AMAQI
22nd Jul 2025586 AMAQI
22nd Jul 2025587 AMAQI
22nd Jul 2025578 AMAQI
22nd Jul 2025629 AMAQI
22nd Jul 20255810 AMAQI
22nd Jul 20256411 AMAQI
22nd Jul 20256712 PMAQI
22nd Jul 2025591 PMAQI
22nd Jul 2025602 PMAQI
22nd Jul 2025623 PMAQI
22nd Jul 2025614 PMAQI
22nd Jul 2025625 PMAQI
22nd Jul 2025646 PMAQI
22nd Jul 2025627 PMAQI
22nd Jul 2025608 PMAQI
22nd Jul 2025659 PMAQI
22nd Jul 20256410 PMAQI
22nd Jul 20256611 PMAQI
23rd Jul 20256712 AMAQI
23rd Jul 2025581 AMAQI
23rd Jul 2025582 AMAQI
23rd Jul 2025583 AMAQI
23rd Jul 2025604 AMAQI
23°C17/30°C
23rd Jul 2025605 AMAQI
23rd Jul 2025606 AMAQI
23rd Jul 2025587 AMAQI
23rd Jul 2025668 AMAQI
23rd Jul 2025689 AMAQI
23rd Jul 20256810 AMAQI
23rd Jul 20257411 AMAQI
23rd Jul 20258012 PMAQI
23rd Jul 2025731 PMAQI
23rd Jul 2025702 PMAQI
23rd Jul 2025653 PMAQI
23rd Jul 2025674 PMAQI
23rd Jul 2025665 PMAQI
23rd Jul 2025726 PMAQI
23rd Jul 2025657 PMAQI
23rd Jul 2025608 PMAQI
23rd Jul 2025629 PMAQI
23rd Jul 20256110 PMAQI
23rd Jul 20256211 PMAQI
24th Jul 20256312 AMAQI
24th Jul 2025621 AMAQI
24th Jul 2025622 AMAQI
24th Jul 2025613 AMAQI
24th Jul 2025634 AMAQI
23°C17/30°C
24th Jul 2025635 AMAQI
24th Jul 2025636 AMAQI
24th Jul 2025637 AMAQI
24th Jul 2025588 AMAQI
24th Jul 2025559 AMAQI
24th Jul 20255610 AMAQI
24th Jul 20255411 AMAQI
24th Jul 20255612 PMAQI
24th Jul 2025521 PMAQI
24th Jul 2025522 PMAQI
24th Jul 2025543 PMAQI
24th Jul 2025554 PMAQI
24th Jul 2025565 PMAQI
24th Jul 2025596 PMAQI
24th Jul 2025577 PMAQI
24th Jul 2025638 PMAQI
24th Jul 2025629 PMAQI
24th Jul 20256210 PMAQI
24th Jul 20256411 PMAQI
25th Jul 20256212 AMAQI
25th Jul 2025611 AMAQI
25th Jul 2025632 AMAQI
25th Jul 2025623 AMAQI
25th Jul 2025614 AMAQI
20°C18/23°C
25th Jul 2025615 AMAQI
25th Jul 2025616 AMAQI
25th Jul 2025607 AMAQI
25th Jul 2025548 AMAQI
25th Jul 2025509 AMAQI
25th Jul 20255110 AMAQI
25th Jul 20253811 AMAQI
25th Jul 20255612 PMAQI
25th Jul 2025551 PMAQI
25th Jul 2025492 PMAQI
25th Jul 2025443 PMAQI
25th Jul 2025484 PMAQI
25th Jul 2025615 PMAQI
25th Jul 2025616 PMAQI
25th Jul 2025637 PMAQI
25th Jul 2025708 PMAQI
25th Jul 2025709 PMAQI
25th Jul 20256510 PMAQI
25th Jul 20256411 PMAQI
26th Jul 20256312 AMAQI
26th Jul 2025601 AMAQI
26th Jul 2025602 AMAQI
26th Jul 2025603 AMAQI
26th Jul 2025594 AMAQI
21°C19/25°C
26th Jul 2025595 AMAQI
26th Jul 2025586 AMAQI
26th Jul 2025597 AMAQI
26th Jul 2025578 AMAQI
26th Jul 2025569 AMAQI
26th Jul 20255510 AMAQI
26th Jul 20255611 AMAQI
26th Jul 20255512 PMAQI
26th Jul 2025561 PMAQI
26th Jul 2025542 PMAQI
26th Jul 2025513 PMAQI
26th Jul 2025604 PMAQI
26th Jul 2025525 PMAQI
26th Jul 2025516 PMAQI
26th Jul 2025577 PMAQI
26th Jul 2025608 PMAQI
26th Jul 2025609 PMAQI
26th Jul 20256110 PMAQI
26th Jul 20255811 PMAQI
27th Jul 20255912 AMAQI
27th Jul 2025591 AMAQI
27th Jul 2025592 AMAQI
27th Jul 2025593 AMAQI
27th Jul 2025594 AMAQI
20°C18/24°C
27th Jul 2025595 AMAQI
27th Jul 2025596 AMAQI
27th Jul 2025587 AMAQI
27th Jul 2025608 AMAQI
27th Jul 2025569 AMAQI
27th Jul 20255910 AMAQI
27th Jul 20256311 AMAQI
27th Jul 20256312 PMAQI
27th Jul 2025631 PMAQI
27th Jul 2025632 PMAQI
27th Jul 2025613 PMAQI
27th Jul 2025594 PMAQI
27th Jul 2025595 PMAQI
27th Jul 2025566 PMAQI
27th Jul 2025627 PMAQI
27th Jul 2025598 PMAQI
27th Jul 2025609 PMAQI
27th Jul 20256210 PMAQI
27th Jul 20256611 PMAQI
28th Jul 20256412 AMAQI
28th Jul 2025601 AMAQI
28th Jul 2025592 AMAQI
28th Jul 2025583 AMAQI
28th Jul 2025594 AMAQI
22°C19/26°C
28th Jul 2025595 AMAQI
28th Jul 2025586 AMAQI
28th Jul 2025587 AMAQI
28th Jul 2025708 AMAQI
28th Jul 2025649 AMAQI
28th Jul 20256410 AMAQI
28th Jul 20257311 AMAQI
28th Jul 20257812 PMAQI
28th Jul 2025721 PMAQI
28th Jul 2025662 PMAQI
28th Jul 2025603 PMAQI
28th Jul 2025624 PMAQI
28th Jul 2025625 PMAQI
28th Jul 2025596 PMAQI
28th Jul 2025627 PMAQI
28th Jul 2025638 PMAQI
28th Jul 2025639 PMAQI
28th Jul 20256310 PMAQI
28th Jul 20256411 PMAQI
29th Jul 20256412 AMAQI
29th Jul 2025561 AMAQI
29th Jul 2025582 AMAQI
29th Jul 2025593 AMAQI
29th Jul 2025624 AMAQI
24°C19/30°C
29th Jul 2025625 AMAQI
29th Jul 2025626 AMAQI
29th Jul 2025637 AMAQI
29th Jul 2025598 AMAQI
29th Jul 2025509 AMAQI
29th Jul 20254110 AMAQI
29th Jul 20254411 AMAQI
29th Jul 20254412 PMAQI
29th Jul 2025501 PMAQI
29th Jul 2025542 PMAQI
29th Jul 2025523 PMAQI
29th Jul 2025484 PMAQI
29th Jul 2025475 PMAQI
29th Jul 2025456 PMAQI
29th Jul 2025467 PMAQI
29th Jul 2025588 PMAQI
29th Jul 2025579 PMAQI
29th Jul 20255710 PMAQI
29th Jul 20255711 PMAQI
30th Jul 20255812 AMAQI
30th Jul 2025601 AMAQI
30th Jul 2025622 AMAQI
30th Jul 2025613 AMAQI
30th Jul 2025604 AMAQI
22°C16/29°C
30th Jul 2025595 AMAQI
30th Jul 2025596 AMAQI
30th Jul 2025597 AMAQI
30th Jul 2025468 AMAQI
30th Jul 2025399 AMAQI
30th Jul 20253210 AMAQI
30th Jul 20252811 AMAQI
30th Jul 20253512 PMAQI
30th Jul 2025401 PMAQI
30th Jul 2025362 PMAQI
30th Jul 2025363 PMAQI
30th Jul 2025344 PMAQI
30th Jul 2025415 PMAQI
30th Jul 2025426 PMAQI
30th Jul 2025507 PMAQI
30th Jul 2025568 PMAQI
30th Jul 2025579 PMAQI
30th Jul 20256010 PMAQI
30th Jul 20255911 PMAQI
31st Jul 20255812 AMAQI
31st Jul 2025581 AMAQI
31st Jul 2025592 AMAQI
31st Jul 2025593 AMAQI
31st Jul 2025594 AMAQI
19°C14/26°C
31st Jul 2025595 AMAQI
31st Jul 2025596 AMAQI
31st Jul 2025597 AMAQI
31st Jul 2025598 AMAQI
31st Jul 2025599 AMAQI
31st Jul 20255510 AMAQI
31st Jul 20255511 AMAQI
31st Jul 20255912 PMAQI
31st Jul 2025651 PMAQI
31st Jul 2025682 PMAQI
31st Jul 2025653 PMAQI
31st Jul 2025624 PMAQI
31st Jul 2025625 PMAQI
31st Jul 2025626 PMAQI
31st Jul 2025627 PMAQI
31st Jul 2025668 PMAQI
31st Jul 2025679 PMAQI
31st Jul 20257010 PMAQI
31st Jul 20256811 PMAQI
1st Aug 20256512 AMAQI
1st Aug 2025591 AMAQI
1st Aug 2025582 AMAQI
1st Aug 2025603 AMAQI
1st Aug 2025594 AMAQI
19°C17/21°C
1st Aug 2025605 AMAQI
1st Aug 2025596 AMAQI
1st Aug 2025607 AMAQI
1st Aug 2025738 AMAQI
1st Aug 2025669 AMAQI
1st Aug 20257610 AMAQI
1st Aug 20256811 AMAQI
1st Aug 20256912 PMAQI
1st Aug 2025761 PMAQI
1st Aug 2025702 PMAQI
1st Aug 2025693 PMAQI
1st Aug 2025734 PMAQI
1st Aug 2025675 PMAQI
1st Aug 2025646 PMAQI
1st Aug 2025637 PMAQI
1st Aug 2025668 PMAQI
1st Aug 2025669 PMAQI
1st Aug 20257010 PMAQI
1st Aug 20257011 PMAQI
2nd Aug 20256312 AMAQI
2nd Aug 2025591 AMAQI
2nd Aug 2025582 AMAQI
2nd Aug 2025613 AMAQI
2nd Aug 2025624 AMAQI
22°C15/30°C
2nd Aug 2025625 AMAQI
2nd Aug 2025626 AMAQI
2nd Aug 2025627 AMAQI
2nd Aug 2025778 AMAQI
2nd Aug 2025709 AMAQI
2nd Aug 20257010 AMAQI
2nd Aug 20257211 AMAQI
2nd Aug 20257512 PMAQI
2nd Aug 2025751 PMAQI
2nd Aug 2025742 PMAQI
2nd Aug 2025773 PMAQI
2nd Aug 2025654 PMAQI
2nd Aug 2025655 PMAQI
2nd Aug 2025686 PMAQI
2nd Aug 2025637 PMAQI
2nd Aug 2025618 PMAQI
2nd Aug 2025609 PMAQI
2nd Aug 20256910 PMAQI
2nd Aug 20256111 PMAQI
3rd Aug 20256312 AMAQI
3rd Aug 2025591 AMAQI
3rd Aug 2025592 AMAQI
3rd Aug 2025643 AMAQI
3rd Aug 2025654 AMAQI
23°C17/30°C
3rd Aug 2025645 AMAQI
3rd Aug 2025646 AMAQI
3rd Aug 2025637 AMAQI
3rd Aug 2025678 AMAQI
3rd Aug 2025679 AMAQI
3rd Aug 20256410 AMAQI
3rd Aug 20257011 AMAQI
3rd Aug 20257512 PMAQI
3rd Aug 2025651 PMAQI
3rd Aug 2025642 PMAQI
3rd Aug 2025643 PMAQI
3rd Aug 2025624 PMAQI
3rd Aug 2025625 PMAQI
3rd Aug 2025656 PMAQI
3rd Aug 2025627 PMAQI
3rd Aug 2025628 PMAQI
3rd Aug 2025609 PMAQI
3rd Aug 20256310 PMAQI
3rd Aug 20256611 PMAQI
4th Aug 20256312 AMAQI
4th Aug 2025621 AMAQI
4th Aug 2025602 AMAQI
4th Aug 2025613 AMAQI
--°C/°C
5 AM
12 PM
7 PM
12 AM
4 AM
--°C/°C
Day time
Avg. Highest Time
5 AM - 8 AM
62AQI
4 hours / Day
120 hours / Month
Avg. Lowest Time
9 AM - 11 AM
59AQI
3 hours / Day
90 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 8 AM (Avg. 62), while the lowest AQI was between 9 AM to 11 AM (Avg. 59).
Night time
Avg. Highest Time
12 AM - 11 PM
63AQI
9 hours / Day
270 hours / Month
Avg. Lowest Time
12 AM - 11 PM
63AQI
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. 63), while the lowest AQI was between 12 AM to 11 PM (Avg. 63).
2025 Days Vs Air Quality
Zhangbei County Environmental Protection Bureau, Zhangjiakou, Hebei, China
2025
8%
18
87%
186
5%
10
0.4%
1
Total number of days with different AQI categories in last 215 days in 2025 (150 days remaining)
Good
18 DaysModerate
186 DaysPoor
10 DaysUnhealthy
1 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 8%
Health Risk Level:
Extreme
In 2025, 8% 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
Zhangbei 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
69AQI
69AQI
2nd January 2025
66AQI
66AQI
3rd January 2025
65AQI
65AQI
4th January 2025
75AQI
75AQI
5th January 2025
79AQI
79AQI
6th January 2025
77AQI
77AQI
7th January 2025
65AQI
65AQI
8th January 2025
67AQI
67AQI
9th January 2025
60AQI
60AQI
10th January 2025
64AQI
64AQI
11th January 2025
85AQI
85AQI
12th January 2025
101AQI
101AQI
13th January 2025
89AQI
89AQI
14th January 2025
78AQI
78AQI
15th January 2025
66AQI
66AQI
16th January 2025
77AQI
77AQI
17th January 2025
82AQI
82AQI
18th January 2025
83AQI
83AQI
19th January 2025
74AQI
74AQI
20th January 2025
85AQI
85AQI
21st January 2025
74AQI
74AQI
22nd January 2025
91AQI
91AQI
23rd January 2025
112AQI
112AQI
24th January 2025
94AQI
94AQI
25th January 2025
129AQI
129AQI
26th January 2025
98AQI
98AQI
27th January 2025
84AQI
84AQI
28th January 2025
95AQI
95AQI
29th January 2025
105AQI
105AQI
30th January 2025
100AQI
100AQI
31st January 2025
110AQI
110AQI
1st February 2025
104AQI
104AQI
2nd February 2025
78AQI
78AQI
3rd February 2025
80AQI
80AQI
4th February 2025
64AQI
64AQI
5th February 2025
71AQI
71AQI
6th February 2025
69AQI
69AQI
7th February 2025
63AQI
63AQI
8th February 2025
59AQI
59AQI
9th February 2025
76AQI
76AQI
10th February 2025
80AQI
80AQI
11th February 2025
79AQI
79AQI
12th February 2025
88AQI
88AQI
13th February 2025
77AQI
77AQI
14th February 2025
56AQI
56AQI
15th February 2025
61AQI
61AQI
16th February 2025
39AQI
39AQI
17th February 2025
42AQI
42AQI
18th February 2025
30AQI
30AQI
19th February 2025
35AQI
35AQI
20th February 2025
31AQI
31AQI
21st February 2025
39AQI
39AQI
22nd February 2025
39AQI
39AQI
23rd February 2025
36AQI
36AQI
24th February 2025
50AQI
50AQI
25th February 2025
42AQI
42AQI
26th February 2025
55AQI
55AQI
27th February 2025
60AQI
60AQI
28th February 2025
61AQI
61AQI
1st March 2025
64AQI
64AQI
2nd March 2025
40AQI
40AQI
3rd March 2025
51AQI
51AQI
4th March 2025
53AQI
53AQI
5th March 2025
50AQI
50AQI
6th March 2025
43AQI
43AQI
7th March 2025
54AQI
54AQI
8th March 2025
60AQI
60AQI
9th March 2025
66AQI
66AQI
10th March 2025
74AQI
74AQI
11th March 2025
89AQI
89AQI
12th March 2025
58AQI
58AQI
13th March 2025
73AQI
73AQI
14th March 2025
97AQI
97AQI
15th March 2025
65AQI
65AQI
16th March 2025
72AQI
72AQI
17th March 2025
73AQI
73AQI
18th March 2025
59AQI
59AQI
19th March 2025
77AQI
77AQI
20th March 2025
60AQI
60AQI
21st March 2025
63AQI
63AQI
22nd March 2025
78AQI
78AQI
23rd March 2025
157AQI
157AQI
24th March 2025
85AQI
85AQI
25th March 2025
91AQI
91AQI
26th March 2025
115AQI
115AQI
27th March 2025
78AQI
78AQI
28th March 2025
74AQI
74AQI
29th March 2025
60AQI
60AQI
30th March 2025
64AQI
64AQI
31st March 2025
64AQI
64AQI
1st April 2025
65AQI
65AQI
2nd April 2025
57AQI
57AQI
3rd April 2025
80AQI
80AQI
4th April 2025
63AQI
63AQI
5th April 2025
61AQI
61AQI
6th April 2025
74AQI
74AQI
7th April 2025
62AQI
62AQI
8th April 2025
76AQI
76AQI
9th April 2025
71AQI
71AQI
10th April 2025
75AQI
75AQI
11th April 2025
102AQI
102AQI
12th April 2025
68AQI
68AQI
13th April 2025
73AQI
73AQI
14th April 2025
67AQI
67AQI
15th April 2025
66AQI
66AQI
16th April 2025
98AQI
98AQI
17th April 2025
80AQI
80AQI
18th April 2025
69AQI
69AQI
19th April 2025
67AQI
67AQI
20th April 2025
91AQI
91AQI
21st April 2025
78AQI
78AQI
22nd April 2025
66AQI
66AQI
23rd April 2025
61AQI
61AQI
24th April 2025
59AQI
59AQI
25th April 2025
63AQI
63AQI
26th April 2025
69AQI
69AQI
27th April 2025
55AQI
55AQI
28th April 2025
60AQI
60AQI
29th April 2025
61AQI
61AQI
30th April 2025
61AQI
61AQI
1st May 2025
58AQI
58AQI
2nd May 2025
62AQI
62AQI
3rd May 2025
57AQI
57AQI
4th May 2025
72AQI
72AQI
5th May 2025
121AQI
121AQI
6th May 2025
69AQI
69AQI
7th May 2025
87AQI
87AQI
8th May 2025
93AQI
93AQI
9th May 2025
86AQI
86AQI
10th May 2025
82AQI
82AQI
11th May 2025
69AQI
69AQI
12th May 2025
74AQI
74AQI
13th May 2025
80AQI
80AQI
14th May 2025
66AQI
66AQI
15th May 2025
67AQI
67AQI
16th May 2025
84AQI
84AQI
17th May 2025
64AQI
64AQI
18th May 2025
69AQI
69AQI
19th May 2025
70AQI
70AQI
20th May 2025
90AQI
90AQI
21st May 2025
87AQI
87AQI
22nd May 2025
101AQI
101AQI
23rd May 2025
95AQI
95AQI
24th May 2025
81AQI
81AQI
25th May 2025
83AQI
83AQI
26th May 2025
74AQI
74AQI
27th May 2025
77AQI
77AQI
28th May 2025
81AQI
81AQI
29th May 2025
84AQI
84AQI
30th May 2025
93AQI
93AQI
31st May 2025
67AQI
67AQI
1st June 2025
86AQI
86AQI
2nd June 2025
51AQI
51AQI
3rd June 2025
51AQI
51AQI
4th June 2025
46AQI
46AQI
5th June 2025
55AQI
55AQI
6th June 2025
49AQI
49AQI
7th June 2025
50AQI
50AQI
8th June 2025
49AQI
49AQI
9th June 2025
55AQI
55AQI
10th June 2025
56AQI
56AQI
11th June 2025
62AQI
62AQI
12th June 2025
74AQI
74AQI
13th June 2025
72AQI
72AQI
14th June 2025
67AQI
67AQI
15th June 2025
52AQI
52AQI
16th June 2025
53AQI
53AQI
17th June 2025
60AQI
60AQI
18th June 2025
63AQI
63AQI
19th June 2025
59AQI
59AQI
20th June 2025
58AQI
58AQI
21st June 2025
51AQI
51AQI
22nd June 2025
46AQI
46AQI
23rd June 2025
53AQI
53AQI
24th June 2025
60AQI
60AQI
25th June 2025
63AQI
63AQI
26th June 2025
66AQI
66AQI
27th June 2025
70AQI
70AQI
28th June 2025
68AQI
68AQI
29th June 2025
70AQI
70AQI
30th June 2025
68AQI
68AQI
1st July 2025
64AQI
64AQI
2nd July 2025
64AQI
64AQI
3rd July 2025
61AQI
61AQI
4th July 2025
65AQI
65AQI
5th July 2025
59AQI
59AQI
6th July 2025
55AQI
55AQI
7th July 2025
59AQI
59AQI
8th July 2025
63AQI
63AQI
9th July 2025
64AQI
64AQI
10th July 2025
63AQI
63AQI
11th July 2025
70AQI
70AQI
12th July 2025
69AQI
69AQI
13th July 2025
61AQI
61AQI
14th July 2025
65AQI
65AQI
15th July 2025
68AQI
68AQI
16th July 2025
60AQI
60AQI
17th July 2025
58AQI
58AQI
18th July 2025
61AQI
61AQI
19th July 2025
67AQI
67AQI
20th July 2025
55AQI
55AQI
21st July 2025
56AQI
56AQI
22nd July 2025
61AQI
61AQI
23rd July 2025
65AQI
65AQI
24th July 2025
60AQI
60AQI
25th July 2025
59AQI
59AQI
26th July 2025
59AQI
59AQI
27th July 2025
60AQI
60AQI
28th July 2025
63AQI
63AQI
29th July 2025
56AQI
56AQI
30th July 2025
51AQI
51AQI
31st July 2025
61AQI
61AQI
1st August 2025
67AQI
67AQI
2nd August 2025
66AQI
66AQI
3rd August 2025
65AQI
65AQI
84AQI
59AQI
71AQI
70AQI
79AQI
59AQI
61AQI
66AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202569AQI
26
5
10
17
1
3
26
1
1
29
1
29
2
5
25
31
3
18
186
10
1
Highest AQI recorded in
January84AQI
Lowest AQI recorded in
February59AQI
202454AQI
17
2
4
4
1
4
1
8
8
3
27
4
27
17
14
20
9
17
13
1
9
19
1
1
2
29
109
149
2
2
Highest AQI recorded in
December68AQI
Lowest AQI recorded in
February25AQI
202331AQI
3
24
7
27
7
Highest AQI recorded in
December32AQI
Lowest AQI recorded in
November13AQI
202259AQI
12
14
4
11
9
15
12
4
15
11
2
1
18
13
9
17
4
8
15
3
88
94
14
1
Highest AQI recorded in
August76AQI
Lowest AQI recorded in
May49AQI
202152AQI
12
11
3
3
2
8
15
4
1
2
15
8
3
1
2
9
14
2
1
15
11
4
1
13
17
27
4
31
30
31
15
11
4
19
11
1
212
109
26
7
2
5
Highest AQI recorded in
March132AQI
Lowest AQI recorded in
October1AQI
202067AQI
2
8
3
3
17
1
6
10
2
4
22
3
1
1
25
5
10
21
25
4
16
12
2
1
12
12
4
2
14
15
2
93
146
22
3
1
Highest AQI recorded in
March80AQI
Lowest AQI recorded in
September43AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2025(Avg.)
69AQILeast Polluted Year Recorded
2023(Avg.)
31AQIZhangbei County Environmental Protection Bureau's annual 2025 AQI (69) shows an average percentage change of 42.06% (worsened AQI) compared to previous years: 2020 (67), 2021 (52), 2022 (59), 2023 (31), 2024 (54).
