Century Compound, 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
Century Compound, Zhangjiakou, Hebei, China
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
10th Aug 2023
114AQILowest AQI recorded on
12th Aug 2024
30AQISame Day Analysis (2nd August ):
On this day, AQI across the 4 years varied significantly: 2025 ranks 3rd highest AQI at 66 of Moderate air quality, showing improvement over 2023 and 2022 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 3rd Aug - 4th Aug 2025
Century Compound, 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
71AQI
Avg. Lowest Time
9PM3rd Aug
60AQI
In the last 24 hours,
Century Compound's AQI reached its highest point of 71 at 12 PM during the Night, while the lowest point, 60, was recorded at 9 PM during the Night between 3rd Aug and 4th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Century Compound, 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 2025625 AMAQI
5th Jul 2025616 AMAQI
5th Jul 2025627 AMAQI
5th Jul 2025568 AMAQI
5th Jul 2025479 AMAQI
5th Jul 20254110 AMAQI
5th Jul 20253711 AMAQI
5th Jul 20255112 PMAQI
5th Jul 2025531 PMAQI
5th Jul 2025522 PMAQI
5th Jul 2025483 PMAQI
5th Jul 2025484 PMAQI
5th Jul 2025475 PMAQI
5th Jul 2025526 PMAQI
5th Jul 2025547 PMAQI
5th Jul 2025608 PMAQI
5th Jul 2025599 PMAQI
5th Jul 20256010 PMAQI
5th Jul 20255911 PMAQI
6th Jul 20256012 AMAQI
6th Jul 2025621 AMAQI
6th Jul 2025622 AMAQI
6th Jul 2025613 AMAQI
6th Jul 2025614 AMAQI
24°C21/28°C
6th Jul 2025605 AMAQI
6th Jul 2025616 AMAQI
6th Jul 2025607 AMAQI
6th Jul 2025418 AMAQI
6th Jul 2025369 AMAQI
6th Jul 20252510 AMAQI
6th Jul 20252211 AMAQI
6th Jul 20254912 PMAQI
6th Jul 2025461 PMAQI
6th Jul 2025442 PMAQI
6th Jul 2025433 PMAQI
6th Jul 2025454 PMAQI
6th Jul 2025485 PMAQI
6th Jul 2025526 PMAQI
6th Jul 2025537 PMAQI
6th Jul 2025588 PMAQI
6th Jul 2025599 PMAQI
6th Jul 20255910 PMAQI
6th Jul 20255911 PMAQI
7th Jul 20255912 AMAQI
7th Jul 2025611 AMAQI
7th Jul 2025602 AMAQI
7th Jul 2025603 AMAQI
7th Jul 2025604 AMAQI
24°C19/29°C
7th Jul 2025595 AMAQI
7th Jul 2025606 AMAQI
7th Jul 2025607 AMAQI
7th Jul 2025358 AMAQI
7th Jul 2025389 AMAQI
7th Jul 20254610 AMAQI
7th Jul 20254411 AMAQI
7th Jul 20255612 PMAQI
7th Jul 2025551 PMAQI
7th Jul 2025532 PMAQI
7th Jul 2025493 PMAQI
7th Jul 2025514 PMAQI
7th Jul 2025525 PMAQI
7th Jul 2025546 PMAQI
7th Jul 2025557 PMAQI
7th Jul 2025608 PMAQI
7th Jul 2025609 PMAQI
7th Jul 20256010 PMAQI
7th Jul 20255911 PMAQI
8th Jul 20255912 AMAQI
8th Jul 2025591 AMAQI
8th Jul 2025602 AMAQI
8th Jul 2025593 AMAQI
8th Jul 2025594 AMAQI
22°C18/27°C
8th Jul 2025595 AMAQI
8th Jul 2025596 AMAQI
8th Jul 2025587 AMAQI
8th Jul 2025578 AMAQI
8th Jul 2025549 AMAQI
8th Jul 20255810 AMAQI
8th Jul 20256011 AMAQI
8th Jul 20256012 PMAQI
8th Jul 2025581 PMAQI
8th Jul 2025572 PMAQI
8th Jul 2025583 PMAQI
8th Jul 2025584 PMAQI
8th Jul 2025585 PMAQI
8th Jul 2025606 PMAQI
8th Jul 2025617 PMAQI
8th Jul 2025588 PMAQI
8th Jul 2025609 PMAQI
8th Jul 20256010 PMAQI
8th Jul 20256011 PMAQI
9th Jul 20256112 AMAQI
9th Jul 2025601 AMAQI
9th Jul 2025582 AMAQI
9th Jul 2025603 AMAQI
9th Jul 2025594 AMAQI
24°C19/29°C
9th Jul 2025605 AMAQI
9th Jul 2025596 AMAQI
9th Jul 2025587 AMAQI
9th Jul 2025738 AMAQI
9th Jul 2025759 AMAQI
9th Jul 20256210 AMAQI
9th Jul 20257611 AMAQI
9th Jul 20257712 PMAQI
9th Jul 2025731 PMAQI
9th Jul 2025742 PMAQI
9th Jul 2025703 PMAQI
9th Jul 2025734 PMAQI
9th Jul 2025705 PMAQI
9th Jul 2025746 PMAQI
9th Jul 2025687 PMAQI
9th Jul 2025618 PMAQI
9th Jul 2025619 PMAQI
9th Jul 20256010 PMAQI
9th Jul 20256111 PMAQI
10th Jul 20256012 AMAQI
10th Jul 2025601 AMAQI
10th Jul 2025602 AMAQI
10th Jul 2025603 AMAQI
10th Jul 2025614 AMAQI
23°C20/27°C
10th Jul 2025615 AMAQI
10th Jul 2025616 AMAQI
10th Jul 2025617 AMAQI
10th Jul 2025738 AMAQI
10th Jul 2025619 AMAQI
10th Jul 20255010 AMAQI
10th Jul 20256011 AMAQI
10th Jul 20256712 PMAQI
10th Jul 2025631 PMAQI
10th Jul 2025622 PMAQI
10th Jul 2025663 PMAQI
10th Jul 2025644 PMAQI
10th Jul 2025695 PMAQI
10th Jul 2025626 PMAQI
10th Jul 2025647 PMAQI
10th Jul 2025628 PMAQI
10th Jul 2025639 PMAQI
10th Jul 20256210 PMAQI
10th Jul 20256311 PMAQI
11th Jul 20256312 AMAQI
11th Jul 2025611 AMAQI
11th Jul 2025612 AMAQI
11th Jul 2025613 AMAQI
11th Jul 2025614 AMAQI
23°C20/28°C
11th Jul 2025615 AMAQI
11th Jul 2025626 AMAQI
11th Jul 2025617 AMAQI
11th Jul 2025718 AMAQI
11th Jul 2025679 AMAQI
11th Jul 20258710 AMAQI
11th Jul 20259211 AMAQI
11th Jul 20257912 PMAQI
11th Jul 2025801 PMAQI
11th Jul 2025742 PMAQI
11th Jul 2025783 PMAQI
11th Jul 2025804 PMAQI
11th Jul 2025845 PMAQI
11th Jul 2025846 PMAQI
11th Jul 2025827 PMAQI
11th Jul 2025668 PMAQI
11th Jul 2025679 PMAQI
11th Jul 20256610 PMAQI
11th Jul 20256711 PMAQI
12th Jul 20256712 AMAQI
12th Jul 2025641 AMAQI
12th Jul 2025632 AMAQI
12th Jul 2025633 AMAQI
12th Jul 2025654 AMAQI
25°C20/31°C
12th Jul 2025645 AMAQI
12th Jul 2025656 AMAQI
12th Jul 2025667 AMAQI
12th Jul 2025928 AMAQI
12th Jul 20251039 AMAQI
12th Jul 20258610 AMAQI
12th Jul 202511211 AMAQI
12th Jul 20259812 PMAQI
12th Jul 2025941 PMAQI
12th Jul 2025912 PMAQI
12th Jul 2025843 PMAQI
12th Jul 2025664 PMAQI
12th Jul 2025605 PMAQI
12th Jul 2025586 PMAQI
12th Jul 2025627 PMAQI
12th Jul 2025658 PMAQI
12th Jul 2025649 PMAQI
12th Jul 20256610 PMAQI
12th Jul 20256611 PMAQI
13th Jul 20256612 AMAQI
13th Jul 2025651 AMAQI
13th Jul 2025662 AMAQI
13th Jul 2025653 AMAQI
13th Jul 2025664 AMAQI
26°C21/31°C
13th Jul 2025685 AMAQI
13th Jul 2025676 AMAQI
13th Jul 2025687 AMAQI
13th Jul 2025548 AMAQI
13th Jul 2025299 AMAQI
13th Jul 20255010 AMAQI
13th Jul 20253411 AMAQI
13th Jul 20255312 PMAQI
13th Jul 2025581 PMAQI
13th Jul 2025562 PMAQI
13th Jul 2025563 PMAQI
13th Jul 2025564 PMAQI
13th Jul 2025555 PMAQI
13th Jul 2025586 PMAQI
13th Jul 2025597 PMAQI
13th Jul 2025658 PMAQI
13th Jul 2025659 PMAQI
13th Jul 20256410 PMAQI
13th Jul 20256411 PMAQI
14th Jul 20256512 AMAQI
14th Jul 2025661 AMAQI
14th Jul 2025662 AMAQI
14th Jul 2025663 AMAQI
14th Jul 2025664 AMAQI
27°C21/33°C
14th Jul 2025645 AMAQI
14th Jul 2025646 AMAQI
14th Jul 2025657 AMAQI
14th Jul 2025408 AMAQI
14th Jul 2025389 AMAQI
14th Jul 20255410 AMAQI
14th Jul 20255411 AMAQI
14th Jul 20255812 PMAQI
14th Jul 2025601 PMAQI
14th Jul 2025582 PMAQI
14th Jul 2025643 PMAQI
14th Jul 2025624 PMAQI
14th Jul 2025645 PMAQI
14th Jul 2025686 PMAQI
14th Jul 2025687 PMAQI
14th Jul 2025658 PMAQI
14th Jul 2025669 PMAQI
14th Jul 20256610 PMAQI
14th Jul 20256511 PMAQI
15th Jul 20256612 AMAQI
15th Jul 2025651 AMAQI
15th Jul 2025642 AMAQI
15th Jul 2025643 AMAQI
15th Jul 2025634 AMAQI
25°C21/29°C
15th Jul 2025645 AMAQI
15th Jul 2025636 AMAQI
15th Jul 2025647 AMAQI
15th Jul 2025818 AMAQI
15th Jul 2025729 AMAQI
15th Jul 20257610 AMAQI
15th Jul 20256711 AMAQI
15th Jul 20256812 PMAQI
15th Jul 2025691 PMAQI
15th Jul 2025722 PMAQI
15th Jul 2025743 PMAQI
15th Jul 2025684 PMAQI
15th Jul 2025625 PMAQI
15th Jul 2025576 PMAQI
15th Jul 2025567 PMAQI
15th Jul 2025648 PMAQI
15th Jul 2025649 PMAQI
15th Jul 20256310 PMAQI
15th Jul 20256411 PMAQI
16th Jul 20256312 AMAQI
16th Jul 2025641 AMAQI
16th Jul 2025652 AMAQI
16th Jul 2025653 AMAQI
16th Jul 2025664 AMAQI
25°C19/32°C
16th Jul 2025665 AMAQI
16th Jul 2025666 AMAQI
16th Jul 2025667 AMAQI
16th Jul 2025548 AMAQI
16th Jul 2025349 AMAQI
16th Jul 20253010 AMAQI
16th Jul 20254711 AMAQI
16th Jul 20255612 PMAQI
16th Jul 2025541 PMAQI
16th Jul 2025522 PMAQI
16th Jul 2025533 PMAQI
16th Jul 2025504 PMAQI
16th Jul 2025535 PMAQI
16th Jul 2025546 PMAQI
16th Jul 2025517 PMAQI
16th Jul 2025628 PMAQI
16th Jul 2025629 PMAQI
16th Jul 20256210 PMAQI
16th Jul 20256211 PMAQI
17th Jul 20256212 AMAQI
17th Jul 2025631 AMAQI
17th Jul 2025642 AMAQI
17th Jul 2025643 AMAQI
17th Jul 2025634 AMAQI
24°C21/28°C
17th Jul 2025625 AMAQI
17th Jul 2025626 AMAQI
17th Jul 2025637 AMAQI
17th Jul 2025298 AMAQI
17th Jul 2025229 AMAQI
17th Jul 20252410 AMAQI
17th Jul 20252511 AMAQI
17th Jul 20255212 PMAQI
17th Jul 2025551 PMAQI
17th Jul 2025532 PMAQI
17th Jul 2025503 PMAQI
17th Jul 2025504 PMAQI
17th Jul 2025505 PMAQI
17th Jul 2025526 PMAQI
17th Jul 2025547 PMAQI
17th Jul 2025628 PMAQI
17th Jul 2025629 PMAQI
17th Jul 20256210 PMAQI
17th Jul 20256211 PMAQI
18th Jul 20256212 AMAQI
18th Jul 2025621 AMAQI
18th Jul 2025622 AMAQI
18th Jul 2025623 AMAQI
18th Jul 2025614 AMAQI
25°C18/32°C
18th Jul 2025615 AMAQI
18th Jul 2025616 AMAQI
18th Jul 2025607 AMAQI
18th Jul 2025468 AMAQI
18th Jul 2025299 AMAQI
18th Jul 20255510 AMAQI
18th Jul 20255211 AMAQI
18th Jul 20255512 PMAQI
18th Jul 2025531 PMAQI
18th Jul 2025532 PMAQI
18th Jul 2025533 PMAQI
18th Jul 2025564 PMAQI
18th Jul 2025565 PMAQI
18th Jul 2025546 PMAQI
18th Jul 2025607 PMAQI
18th Jul 2025618 PMAQI
18th Jul 2025629 PMAQI
18th Jul 20256310 PMAQI
18th Jul 20256211 PMAQI
19th Jul 20256012 AMAQI
19th Jul 2025611 AMAQI
19th Jul 2025622 AMAQI
19th Jul 2025613 AMAQI
19th Jul 2025614 AMAQI
26°C20/32°C
19th Jul 2025605 AMAQI
19th Jul 2025606 AMAQI
19th Jul 2025607 AMAQI
19th Jul 2025748 AMAQI
19th Jul 2025749 AMAQI
19th Jul 20257410 AMAQI
19th Jul 20257311 AMAQI
19th Jul 20256812 PMAQI
19th Jul 2025701 PMAQI
19th Jul 2025702 PMAQI
19th Jul 2025723 PMAQI
19th Jul 2025684 PMAQI
19th Jul 2025735 PMAQI
19th Jul 2025746 PMAQI
19th Jul 2025777 PMAQI
19th Jul 2025648 PMAQI
19th Jul 2025639 PMAQI
19th Jul 20256510 PMAQI
19th Jul 20256411 PMAQI
20th Jul 20256612 AMAQI
20th Jul 2025631 AMAQI
20th Jul 2025622 AMAQI
20th Jul 2025633 AMAQI
20th Jul 2025614 AMAQI
22°C20/25°C
20th Jul 2025615 AMAQI
20th Jul 2025616 AMAQI
20th Jul 2025617 AMAQI
20th Jul 2025508 AMAQI
20th Jul 2025419 AMAQI
20th Jul 20252910 AMAQI
20th Jul 20252811 AMAQI
20th Jul 20254712 PMAQI
20th Jul 2025471 PMAQI
20th Jul 2025492 PMAQI
20th Jul 2025503 PMAQI
20th Jul 2025494 PMAQI
20th Jul 2025485 PMAQI
20th Jul 2025506 PMAQI
20th Jul 2025527 PMAQI
20th Jul 2025618 PMAQI
20th Jul 2025609 PMAQI
20th Jul 20256010 PMAQI
20th Jul 20256011 PMAQI
21st Jul 20256112 AMAQI
21st Jul 2025631 AMAQI
21st Jul 2025642 AMAQI
21st Jul 2025643 AMAQI
21st Jul 2025624 AMAQI
23°C18/28°C
21st Jul 2025625 AMAQI
21st Jul 2025626 AMAQI
21st Jul 2025627 AMAQI
21st Jul 2025408 AMAQI
21st Jul 2025449 AMAQI
21st Jul 20252710 AMAQI
21st Jul 20254411 AMAQI
21st Jul 20255612 PMAQI
21st Jul 2025521 PMAQI
21st Jul 2025502 PMAQI
21st Jul 2025483 PMAQI
21st Jul 2025454 PMAQI
21st Jul 2025495 PMAQI
21st Jul 2025466 PMAQI
21st Jul 2025477 PMAQI
21st Jul 2025588 PMAQI
21st Jul 2025589 PMAQI
21st Jul 20256210 PMAQI
21st Jul 20256011 PMAQI
22nd Jul 20256112 AMAQI
22nd Jul 2025591 AMAQI
22nd Jul 2025602 AMAQI
22nd Jul 2025613 AMAQI
22nd Jul 2025594 AMAQI
24°C19/30°C
22nd Jul 2025605 AMAQI
22nd Jul 2025596 AMAQI
22nd Jul 2025587 AMAQI
22nd Jul 2025368 AMAQI
22nd Jul 2025509 AMAQI
22nd Jul 20253710 AMAQI
22nd Jul 20253511 AMAQI
22nd Jul 20255612 PMAQI
22nd Jul 2025531 PMAQI
22nd Jul 2025522 PMAQI
22nd Jul 2025593 PMAQI
22nd Jul 2025524 PMAQI
22nd Jul 2025515 PMAQI
22nd Jul 2025536 PMAQI
22nd Jul 2025557 PMAQI
22nd Jul 2025598 PMAQI
22nd Jul 2025599 PMAQI
22nd Jul 20256010 PMAQI
22nd Jul 20256111 PMAQI
23rd Jul 20256212 AMAQI
23rd Jul 2025601 AMAQI
23rd Jul 2025602 AMAQI
23rd Jul 2025603 AMAQI
23rd Jul 2025604 AMAQI
24°C19/30°C
23rd Jul 2025605 AMAQI
23rd Jul 2025606 AMAQI
23rd Jul 2025597 AMAQI
23rd Jul 2025748 AMAQI
23rd Jul 2025689 AMAQI
23rd Jul 20256510 AMAQI
23rd Jul 20256111 AMAQI
23rd Jul 20256212 PMAQI
23rd Jul 2025611 PMAQI
23rd Jul 2025612 PMAQI
23rd Jul 2025613 PMAQI
23rd Jul 2025664 PMAQI
23rd Jul 2025665 PMAQI
23rd Jul 2025636 PMAQI
23rd Jul 2025667 PMAQI
23rd Jul 2025608 PMAQI
23rd Jul 2025619 PMAQI
23rd Jul 20256110 PMAQI
23rd Jul 20256111 PMAQI
24th Jul 20255912 AMAQI
24th Jul 2025621 AMAQI
24th Jul 2025622 AMAQI
24th Jul 2025633 AMAQI
24th Jul 2025614 AMAQI
24°C18/30°C
24th Jul 2025615 AMAQI
24th Jul 2025656 AMAQI
24th Jul 2025627 AMAQI
24th Jul 2025448 AMAQI
24th Jul 2025519 AMAQI
24th Jul 20255210 AMAQI
24th Jul 20254611 AMAQI
24th Jul 20254612 PMAQI
24th Jul 2025531 PMAQI
24th Jul 2025532 PMAQI
24th Jul 2025523 PMAQI
24th Jul 2025474 PMAQI
24th Jul 2025535 PMAQI
24th Jul 2025546 PMAQI
24th Jul 2025527 PMAQI
24th Jul 2025608 PMAQI
24th Jul 2025629 PMAQI
24th Jul 20256010 PMAQI
24th Jul 20256011 PMAQI
25th Jul 20256012 AMAQI
25th Jul 2025611 AMAQI
25th Jul 2025622 AMAQI
25th Jul 2025623 AMAQI
25th Jul 2025604 AMAQI
21°C20/24°C
25th Jul 2025605 AMAQI
25th Jul 2025616 AMAQI
25th Jul 2025607 AMAQI
25th Jul 2025548 AMAQI
25th Jul 2025489 AMAQI
25th Jul 20253210 AMAQI
25th Jul 20253611 AMAQI
25th Jul 20255112 PMAQI
25th Jul 2025541 PMAQI
25th Jul 2025542 PMAQI
25th Jul 2025543 PMAQI
25th Jul 2025544 PMAQI
25th Jul 2025535 PMAQI
25th Jul 2025586 PMAQI
25th Jul 2025587 PMAQI
25th Jul 2025628 PMAQI
25th Jul 2025629 PMAQI
25th Jul 20256210 PMAQI
25th Jul 20256211 PMAQI
26th Jul 20256212 AMAQI
26th Jul 2025611 AMAQI
26th Jul 2025622 AMAQI
26th Jul 2025603 AMAQI
26th Jul 2025604 AMAQI
22°C20/25°C
26th Jul 2025605 AMAQI
26th Jul 2025606 AMAQI
26th Jul 2025607 AMAQI
26th Jul 2025648 AMAQI
26th Jul 2025609 AMAQI
26th Jul 20256310 AMAQI
26th Jul 20256211 AMAQI
26th Jul 20257012 PMAQI
26th Jul 2025651 PMAQI
26th Jul 2025642 PMAQI
26th Jul 2025563 PMAQI
26th Jul 2025584 PMAQI
26th Jul 2025545 PMAQI
26th Jul 2025546 PMAQI
26th Jul 2025547 PMAQI
26th Jul 2025628 PMAQI
26th Jul 2025629 PMAQI
26th Jul 20256110 PMAQI
26th Jul 20256011 PMAQI
27th Jul 20256012 AMAQI
27th Jul 2025611 AMAQI
27th Jul 2025602 AMAQI
27th Jul 2025613 AMAQI
27th Jul 2025624 AMAQI
21°C19/24°C
27th Jul 2025615 AMAQI
27th Jul 2025606 AMAQI
27th Jul 2025607 AMAQI
27th Jul 2025588 AMAQI
27th Jul 2025529 AMAQI
27th Jul 20255110 AMAQI
27th Jul 20254011 AMAQI
27th Jul 20255512 PMAQI
27th Jul 2025551 PMAQI
27th Jul 2025602 PMAQI
27th Jul 2025573 PMAQI
27th Jul 2025544 PMAQI
27th Jul 2025545 PMAQI
27th Jul 2025536 PMAQI
27th Jul 2025567 PMAQI
27th Jul 2025608 PMAQI
27th Jul 2025629 PMAQI
27th Jul 20256210 PMAQI
27th Jul 20256311 PMAQI
28th Jul 20256412 AMAQI
28th Jul 2025621 AMAQI
28th Jul 2025612 AMAQI
28th Jul 2025603 AMAQI
28th Jul 2025614 AMAQI
23°C20/26°C
28th Jul 2025605 AMAQI
28th Jul 2025616 AMAQI
28th Jul 2025597 AMAQI
28th Jul 2025628 AMAQI
28th Jul 2025669 AMAQI
28th Jul 20257110 AMAQI
28th Jul 20256811 AMAQI
28th Jul 20257112 PMAQI
28th Jul 2025761 PMAQI
28th Jul 2025662 PMAQI
28th Jul 2025623 PMAQI
28th Jul 2025584 PMAQI
28th Jul 2025605 PMAQI
28th Jul 2025576 PMAQI
28th Jul 2025707 PMAQI
28th Jul 2025638 PMAQI
28th Jul 2025619 PMAQI
28th Jul 20256110 PMAQI
28th Jul 20256111 PMAQI
29th Jul 20256012 AMAQI
29th Jul 2025621 AMAQI
29th Jul 2025622 AMAQI
29th Jul 2025623 AMAQI
29th Jul 2025634 AMAQI
25°C19/30°C
29th Jul 2025635 AMAQI
29th Jul 2025636 AMAQI
29th Jul 2025627 AMAQI
29th Jul 2025508 AMAQI
29th Jul 2025349 AMAQI
29th Jul 20252610 AMAQI
29th Jul 20254211 AMAQI
29th Jul 20255712 PMAQI
29th Jul 2025531 PMAQI
29th Jul 2025522 PMAQI
29th Jul 2025533 PMAQI
29th Jul 2025534 PMAQI
29th Jul 2025465 PMAQI
29th Jul 2025466 PMAQI
29th Jul 2025497 PMAQI
29th Jul 2025608 PMAQI
29th Jul 2025599 PMAQI
29th Jul 20255810 PMAQI
29th Jul 20255911 PMAQI
30th Jul 20256012 AMAQI
30th Jul 2025621 AMAQI
30th Jul 2025612 AMAQI
30th Jul 2025613 AMAQI
30th Jul 2025614 AMAQI
24°C19/29°C
30th Jul 2025605 AMAQI
30th Jul 2025596 AMAQI
30th Jul 2025607 AMAQI
30th Jul 2025348 AMAQI
30th Jul 2025479 AMAQI
30th Jul 20252810 AMAQI
30th Jul 20252611 AMAQI
30th Jul 20254212 PMAQI
30th Jul 2025461 PMAQI
30th Jul 2025442 PMAQI
30th Jul 2025523 PMAQI
30th Jul 2025534 PMAQI
30th Jul 2025515 PMAQI
30th Jul 2025416 PMAQI
30th Jul 2025477 PMAQI
30th Jul 2025588 PMAQI
30th Jul 2025589 PMAQI
30th Jul 20255810 PMAQI
30th Jul 20255811 PMAQI
31st Jul 20255812 AMAQI
31st Jul 2025591 AMAQI
31st Jul 2025602 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 20255810 AMAQI
31st Jul 20255811 AMAQI
31st Jul 20255412 PMAQI
31st Jul 2025561 PMAQI
31st Jul 2025582 PMAQI
31st Jul 2025563 PMAQI
31st Jul 2025584 PMAQI
31st Jul 2025545 PMAQI
31st Jul 2025556 PMAQI
31st Jul 2025617 PMAQI
31st Jul 2025648 PMAQI
31st Jul 2025639 PMAQI
31st Jul 20256610 PMAQI
31st Jul 20256611 PMAQI
1st Aug 20256412 AMAQI
1st Aug 2025581 AMAQI
1st Aug 2025552 AMAQI
1st Aug 2025573 AMAQI
1st Aug 2025584 AMAQI
20°C18/21°C
1st Aug 2025575 AMAQI
1st Aug 2025586 AMAQI
1st Aug 2025597 AMAQI
1st Aug 2025758 AMAQI
1st Aug 2025669 AMAQI
1st Aug 20256910 AMAQI
1st Aug 20256511 AMAQI
1st Aug 20256812 PMAQI
1st Aug 2025721 PMAQI
1st Aug 2025692 PMAQI
1st Aug 2025723 PMAQI
1st Aug 2025754 PMAQI
1st Aug 2025685 PMAQI
1st Aug 2025706 PMAQI
1st Aug 2025687 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 2025615 AMAQI
2nd Aug 2025626 AMAQI
2nd Aug 2025627 AMAQI
2nd Aug 2025788 AMAQI
2nd Aug 2025689 AMAQI
2nd Aug 20256610 AMAQI
2nd Aug 20257211 AMAQI
2nd Aug 20257612 PMAQI
2nd Aug 2025801 PMAQI
2nd Aug 2025752 PMAQI
2nd Aug 2025763 PMAQI
2nd Aug 2025704 PMAQI
2nd Aug 2025685 PMAQI
2nd Aug 2025716 PMAQI
2nd Aug 2025667 PMAQI
2nd Aug 2025608 PMAQI
2nd Aug 2025609 PMAQI
2nd Aug 20256810 PMAQI
2nd Aug 20256211 PMAQI
3rd Aug 20256212 AMAQI
3rd Aug 2025601 AMAQI
3rd Aug 2025612 AMAQI
3rd Aug 2025633 AMAQI
3rd Aug 2025644 AMAQI
24°C19/30°C
3rd Aug 2025635 AMAQI
3rd Aug 2025646 AMAQI
3rd Aug 2025637 AMAQI
3rd Aug 2025698 AMAQI
3rd Aug 2025649 AMAQI
3rd Aug 20256210 AMAQI
3rd Aug 20257011 AMAQI
3rd Aug 20257112 PMAQI
3rd Aug 2025641 PMAQI
3rd Aug 2025622 PMAQI
3rd Aug 2025613 PMAQI
3rd Aug 2025604 PMAQI
3rd Aug 2025625 PMAQI
3rd Aug 2025636 PMAQI
3rd Aug 2025637 PMAQI
3rd Aug 2025628 PMAQI
3rd Aug 2025609 PMAQI
3rd Aug 20256410 PMAQI
3rd Aug 20256511 PMAQI
4th Aug 20256312 AMAQI
4th Aug 2025621 AMAQI
4th Aug 2025622 AMAQI
4th Aug 2025623 AMAQI
4th Aug 2025634 AMAQI
--°C/°C
5 AM
12 PM
7 PM
12 AM
4 AM
--°C/°C
Day time
Avg. Highest Time
5 AM - 7 AM
61AQI
3 hours / Day
90 hours / Month
Avg. Lowest Time
9 AM - 11 AM
53AQI
3 hours / Day
90 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 7 AM (Avg. 61), while the lowest AQI was between 9 AM to 11 AM (Avg. 53).
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
Century Compound, Zhangjiakou, Hebei, China
2025
17%
37
76%
162
6%
13
0.9%
2
Total number of days with different AQI categories in last 215 days in 2025 (150 days remaining)
Good
37 DaysModerate
162 DaysPoor
13 DaysUnhealthy
2 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 17%
Health Risk Level:
Extreme
In 2025, 17% 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
Century Compound, 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
59AQI
59AQI
2nd January 2025
54AQI
54AQI
3rd January 2025
61AQI
61AQI
4th January 2025
66AQI
66AQI
5th January 2025
57AQI
57AQI
6th January 2025
43AQI
43AQI
7th January 2025
42AQI
42AQI
8th January 2025
38AQI
38AQI
9th January 2025
45AQI
45AQI
10th January 2025
45AQI
45AQI
11th January 2025
65AQI
65AQI
12th January 2025
55AQI
55AQI
13th January 2025
59AQI
59AQI
14th January 2025
48AQI
48AQI
15th January 2025
53AQI
53AQI
16th January 2025
62AQI
62AQI
17th January 2025
83AQI
83AQI
18th January 2025
73AQI
73AQI
19th January 2025
66AQI
66AQI
20th January 2025
80AQI
80AQI
21st January 2025
59AQI
59AQI
22nd January 2025
93AQI
93AQI
23rd January 2025
113AQI
113AQI
24th January 2025
125AQI
125AQI
25th January 2025
150AQI
150AQI
26th January 2025
96AQI
96AQI
27th January 2025
72AQI
72AQI
28th January 2025
61AQI
61AQI
29th January 2025
80AQI
80AQI
30th January 2025
108AQI
108AQI
31st January 2025
126AQI
126AQI
1st February 2025
138AQI
138AQI
2nd February 2025
82AQI
82AQI
3rd February 2025
70AQI
70AQI
4th February 2025
59AQI
59AQI
5th February 2025
51AQI
51AQI
6th February 2025
52AQI
52AQI
7th February 2025
40AQI
40AQI
8th February 2025
45AQI
45AQI
9th February 2025
55AQI
55AQI
10th February 2025
87AQI
87AQI
11th February 2025
107AQI
107AQI
12th February 2025
69AQI
69AQI
13th February 2025
82AQI
82AQI
14th February 2025
77AQI
77AQI
15th February 2025
84AQI
84AQI
16th February 2025
47AQI
47AQI
17th February 2025
56AQI
56AQI
18th February 2025
48AQI
48AQI
19th February 2025
46AQI
46AQI
20th February 2025
48AQI
48AQI
21st February 2025
43AQI
43AQI
22nd February 2025
43AQI
43AQI
23rd February 2025
42AQI
42AQI
24th February 2025
69AQI
69AQI
25th February 2025
49AQI
49AQI
26th February 2025
72AQI
72AQI
27th February 2025
100AQI
100AQI
28th February 2025
97AQI
97AQI
1st March 2025
128AQI
128AQI
2nd March 2025
92AQI
92AQI
3rd March 2025
75AQI
75AQI
4th March 2025
81AQI
81AQI
5th March 2025
71AQI
71AQI
6th March 2025
61AQI
61AQI
7th March 2025
79AQI
79AQI
8th March 2025
100AQI
100AQI
9th March 2025
123AQI
123AQI
10th March 2025
139AQI
139AQI
11th March 2025
156AQI
156AQI
12th March 2025
88AQI
88AQI
13th March 2025
137AQI
137AQI
14th March 2025
100AQI
100AQI
15th March 2025
81AQI
81AQI
16th March 2025
57AQI
57AQI
17th March 2025
54AQI
54AQI
18th March 2025
48AQI
48AQI
19th March 2025
48AQI
48AQI
20th March 2025
44AQI
44AQI
21st March 2025
43AQI
43AQI
22nd March 2025
55AQI
55AQI
23rd March 2025
160AQI
160AQI
24th March 2025
60AQI
60AQI
25th March 2025
68AQI
68AQI
26th March 2025
117AQI
117AQI
27th March 2025
58AQI
58AQI
28th March 2025
60AQI
60AQI
29th March 2025
45AQI
45AQI
30th March 2025
52AQI
52AQI
31st March 2025
51AQI
51AQI
1st April 2025
49AQI
49AQI
2nd April 2025
50AQI
50AQI
3rd April 2025
66AQI
66AQI
4th April 2025
63AQI
63AQI
5th April 2025
46AQI
46AQI
6th April 2025
71AQI
71AQI
7th April 2025
55AQI
55AQI
8th April 2025
71AQI
71AQI
9th April 2025
63AQI
63AQI
10th April 2025
69AQI
69AQI
11th April 2025
112AQI
112AQI
12th April 2025
68AQI
68AQI
13th April 2025
69AQI
69AQI
14th April 2025
55AQI
55AQI
15th April 2025
54AQI
54AQI
16th April 2025
98AQI
98AQI
17th April 2025
70AQI
70AQI
18th April 2025
62AQI
62AQI
19th April 2025
57AQI
57AQI
20th April 2025
88AQI
88AQI
21st April 2025
87AQI
87AQI
22nd April 2025
56AQI
56AQI
23rd April 2025
60AQI
60AQI
24th April 2025
43AQI
43AQI
25th April 2025
56AQI
56AQI
26th April 2025
70AQI
70AQI
27th April 2025
39AQI
39AQI
28th April 2025
51AQI
51AQI
29th April 2025
52AQI
52AQI
30th April 2025
51AQI
51AQI
1st May 2025
42AQI
42AQI
2nd May 2025
50AQI
50AQI
3rd May 2025
39AQI
39AQI
4th May 2025
53AQI
53AQI
5th May 2025
95AQI
95AQI
6th May 2025
60AQI
60AQI
7th May 2025
84AQI
84AQI
8th May 2025
100AQI
100AQI
9th May 2025
61AQI
61AQI
10th May 2025
78AQI
78AQI
11th May 2025
63AQI
63AQI
12th May 2025
71AQI
71AQI
13th May 2025
67AQI
67AQI
14th May 2025
61AQI
61AQI
15th May 2025
67AQI
67AQI
16th May 2025
83AQI
83AQI
17th May 2025
61AQI
61AQI
18th May 2025
64AQI
64AQI
19th May 2025
61AQI
61AQI
20th May 2025
82AQI
82AQI
21st May 2025
73AQI
73AQI
22nd May 2025
98AQI
98AQI
23rd May 2025
89AQI
89AQI
24th May 2025
78AQI
78AQI
25th May 2025
79AQI
79AQI
26th May 2025
67AQI
67AQI
27th May 2025
67AQI
67AQI
28th May 2025
72AQI
72AQI
29th May 2025
85AQI
85AQI
30th May 2025
92AQI
92AQI
31st May 2025
71AQI
71AQI
1st June 2025
99AQI
99AQI
2nd June 2025
45AQI
45AQI
3rd June 2025
48AQI
48AQI
4th June 2025
40AQI
40AQI
5th June 2025
49AQI
49AQI
6th June 2025
37AQI
37AQI
7th June 2025
40AQI
40AQI
8th June 2025
43AQI
43AQI
9th June 2025
51AQI
51AQI
10th June 2025
49AQI
49AQI
11th June 2025
64AQI
64AQI
12th June 2025
77AQI
77AQI
13th June 2025
77AQI
77AQI
14th June 2025
74AQI
74AQI
15th June 2025
55AQI
55AQI
16th June 2025
55AQI
55AQI
17th June 2025
60AQI
60AQI
18th June 2025
67AQI
67AQI
19th June 2025
63AQI
63AQI
20th June 2025
59AQI
59AQI
21st June 2025
53AQI
53AQI
22nd June 2025
53AQI
53AQI
23rd June 2025
54AQI
54AQI
24th June 2025
57AQI
57AQI
25th June 2025
62AQI
62AQI
26th June 2025
64AQI
64AQI
27th June 2025
67AQI
67AQI
28th June 2025
67AQI
67AQI
29th June 2025
66AQI
66AQI
30th June 2025
66AQI
66AQI
1st July 2025
62AQI
62AQI
2nd July 2025
62AQI
62AQI
3rd July 2025
59AQI
59AQI
4th July 2025
60AQI
60AQI
5th July 2025
57AQI
57AQI
6th July 2025
54AQI
54AQI
7th July 2025
56AQI
56AQI
8th July 2025
59AQI
59AQI
9th July 2025
65AQI
65AQI
10th July 2025
62AQI
62AQI
11th July 2025
70AQI
70AQI
12th July 2025
71AQI
71AQI
13th July 2025
61AQI
61AQI
14th July 2025
63AQI
63AQI
15th July 2025
65AQI
65AQI
16th July 2025
59AQI
59AQI
17th July 2025
56AQI
56AQI
18th July 2025
58AQI
58AQI
19th July 2025
65AQI
65AQI
20th July 2025
56AQI
56AQI
21st July 2025
55AQI
55AQI
22nd July 2025
56AQI
56AQI
23rd July 2025
62AQI
62AQI
24th July 2025
57AQI
57AQI
25th July 2025
57AQI
57AQI
26th July 2025
61AQI
61AQI
27th July 2025
58AQI
58AQI
28th July 2025
63AQI
63AQI
29th July 2025
56AQI
56AQI
30th July 2025
54AQI
54AQI
31st July 2025
59AQI
59AQI
1st August 2025
66AQI
66AQI
2nd August 2025
66AQI
66AQI
72AQI
66AQI
82AQI
63AQI
71AQI
59AQI
60AQI
66AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202568AQI
6
20
5
10
16
2
5
19
5
2
5
24
1
3
28
8
22
31
2
37
162
13
2
Highest AQI recorded in
March82AQI
Lowest AQI recorded in
June59AQI
202470AQI
9
13
6
3
5
16
6
2
5
17
7
2
4
16
8
2
5
21
5
11
17
1
1
6
24
1
19
12
20
8
2
12
14
5
10
14
5
1
13
18
119
190
46
10
1
Highest AQI recorded in
April90AQI
Lowest AQI recorded in
August50AQI
202377AQI
5
15
8
3
4
15
4
5
3
19
6
2
1
4
12
10
1
1
5
18
6
2
9
16
5
3
26
2
12
17
2
14
14
2
15
14
2
15
10
4
5
15
11
94
191
62
13
2
Highest AQI recorded in
April95AQI
Lowest AQI recorded in
October57AQI
202266AQI
1
1
1
1
4
1
1
13
18
8
12
10
8
13
1
1
11
16
1
16
7
7
1
10
10
10
17
13
1
85
96
30
1
2
Highest AQI recorded in
February102AQI
Lowest AQI recorded in
May56AQI
2021122AQI
19
5
3
2
2
17
6
5
8
8
12
1
2
13
11
3
1
57
30
23
3
5
Highest AQI recorded in
March152AQI
Lowest AQI recorded in
February102AQI
202079AQI
4
5
3
1
2
13
6
5
9
4
1
1
23
5
1
1
26
4
6
24
1
14
15
1
2
21
5
2
1
19
8
3
1
22
8
36
177
45
7
1
1
Highest AQI recorded in
November93AQI
Lowest AQI recorded in
September57AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2021(Avg.)
122AQILeast Polluted Year Recorded
2022(Avg.)
66AQICentury Compound's annual 2025 AQI (68) shows an average percentage change of -14.3% (improved AQI) compared to previous years: 2020 (79), 2021 (122), 2022 (66), 2023 (77), 2024 (70).
