Environmental Monitoring Supervision Center, Langfang, 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
Environmental Monitoring Supervision Center, Langfang, Hebei, China
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
1st Aug 2025
66AQILowest AQI recorded on
1st Aug 2021
0AQISame Day Analysis (1st August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 66 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 2nd Aug - 3rd Aug 2025
Environmental Monitoring Supervision Center, Langfang, Hebei, China
AQI
Day
Night
.
5 AM2nd Aug 2025
7 PM
4 AM3rd Aug 2025
Day time
Avg. Highest Time
12AMNaNth undefined
AQI
Avg. Lowest Time
12AMNaNth undefined
AQI
Night time
Avg. Highest Time
9AM2nd Aug
78AQI
Avg. Lowest Time
12PM2nd Aug
58AQI
In the last 24 hours,
Environmental Monitoring Supervision Center's AQI reached its highest point of 78 at 9 AM during the Night, while the lowest point, undefined, was recorded at 4 AM during the Night between 2nd Aug and 3rd Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Environmental Monitoring Supervision Center, Langfang, Hebei, China
JulAug
04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd
Day
Night
4th Jul 2025705 AMAQI
4th Jul 2025706 AMAQI
4th Jul 2025707 AMAQI
4th Jul 2025718 AMAQI
4th Jul 2025739 AMAQI
4th Jul 20257310 AMAQI
4th Jul 20256611 AMAQI
4th Jul 20256912 PMAQI
4th Jul 2025661 PMAQI
4th Jul 2025642 PMAQI
4th Jul 2025633 PMAQI
4th Jul 2025624 PMAQI
4th Jul 2025655 PMAQI
4th Jul 2025666 PMAQI
4th Jul 2025647 PMAQI
4th Jul 2025698 PMAQI
4th Jul 2025709 PMAQI
4th Jul 20257110 PMAQI
4th Jul 20257011 PMAQI
5th Jul 20257012 AMAQI
5th Jul 2025711 AMAQI
5th Jul 2025702 AMAQI
5th Jul 2025693 AMAQI
5th Jul 2025694 AMAQI
31°C25/37°C
5th Jul 2025705 AMAQI
5th Jul 2025696 AMAQI
5th Jul 2025707 AMAQI
5th Jul 2025768 AMAQI
5th Jul 2025689 AMAQI
5th Jul 20257110 AMAQI
5th Jul 20257811 AMAQI
5th Jul 20257812 PMAQI
5th Jul 2025621 PMAQI
5th Jul 2025612 PMAQI
5th Jul 2025583 PMAQI
5th Jul 2025604 PMAQI
5th Jul 2025585 PMAQI
5th Jul 2025586 PMAQI
5th Jul 2025607 PMAQI
5th Jul 2025688 PMAQI
5th Jul 2025689 PMAQI
5th Jul 20256610 PMAQI
5th Jul 20256711 PMAQI
6th Jul 20256612 AMAQI
6th Jul 2025681 AMAQI
6th Jul 2025682 AMAQI
6th Jul 2025683 AMAQI
6th Jul 2025684 AMAQI
32°C27/38°C
6th Jul 2025695 AMAQI
6th Jul 2025686 AMAQI
6th Jul 2025697 AMAQI
6th Jul 2025638 AMAQI
6th Jul 2025559 AMAQI
6th Jul 20255810 AMAQI
6th Jul 20255611 AMAQI
6th Jul 20255512 PMAQI
6th Jul 2025561 PMAQI
6th Jul 2025562 PMAQI
6th Jul 2025563 PMAQI
6th Jul 2025564 PMAQI
6th Jul 2025565 PMAQI
6th Jul 2025586 PMAQI
6th Jul 2025587 PMAQI
6th Jul 2025648 PMAQI
6th Jul 2025649 PMAQI
6th Jul 20256510 PMAQI
6th Jul 20256511 PMAQI
7th Jul 20256512 AMAQI
7th Jul 2025661 AMAQI
7th Jul 2025662 AMAQI
7th Jul 2025663 AMAQI
7th Jul 2025644 AMAQI
31°C27/35°C
7th Jul 2025645 AMAQI
7th Jul 2025656 AMAQI
7th Jul 2025647 AMAQI
7th Jul 2025698 AMAQI
7th Jul 2025669 AMAQI
7th Jul 20256110 AMAQI
7th Jul 20256111 AMAQI
7th Jul 20255912 PMAQI
7th Jul 2025581 PMAQI
7th Jul 2025602 PMAQI
7th Jul 2025583 PMAQI
7th Jul 2025584 PMAQI
7th Jul 2025575 PMAQI
7th Jul 2025586 PMAQI
7th Jul 2025607 PMAQI
7th Jul 2025638 PMAQI
7th Jul 2025629 PMAQI
7th Jul 20256410 PMAQI
7th Jul 20256311 PMAQI
8th Jul 20256212 AMAQI
8th Jul 2025641 AMAQI
8th Jul 2025642 AMAQI
8th Jul 2025643 AMAQI
8th Jul 2025644 AMAQI
29°C24/35°C
8th Jul 2025645 AMAQI
8th Jul 2025646 AMAQI
8th Jul 2025647 AMAQI
8th Jul 2025608 AMAQI
8th Jul 2025609 AMAQI
8th Jul 20256010 AMAQI
8th Jul 20256111 AMAQI
8th Jul 20256012 PMAQI
8th Jul 2025631 PMAQI
8th Jul 2025642 PMAQI
8th Jul 2025643 PMAQI
8th Jul 2025634 PMAQI
8th Jul 2025635 PMAQI
8th Jul 2025616 PMAQI
8th Jul 2025617 PMAQI
8th Jul 2025638 PMAQI
8th Jul 2025649 PMAQI
8th Jul 20256410 PMAQI
8th Jul 20256411 PMAQI
9th Jul 20256512 AMAQI
9th Jul 2025631 AMAQI
9th Jul 2025632 AMAQI
9th Jul 2025633 AMAQI
9th Jul 2025634 AMAQI
30°C24/36°C
9th Jul 2025635 AMAQI
9th Jul 2025636 AMAQI
9th Jul 2025647 AMAQI
9th Jul 2025808 AMAQI
9th Jul 2025799 AMAQI
9th Jul 20257410 AMAQI
9th Jul 20257811 AMAQI
9th Jul 20257112 PMAQI
9th Jul 2025641 PMAQI
9th Jul 2025622 PMAQI
9th Jul 2025593 PMAQI
9th Jul 2025584 PMAQI
9th Jul 2025605 PMAQI
9th Jul 2025616 PMAQI
9th Jul 2025617 PMAQI
9th Jul 2025638 PMAQI
9th Jul 2025649 PMAQI
9th Jul 20256410 PMAQI
9th Jul 20256611 PMAQI
10th Jul 20256712 AMAQI
10th Jul 2025641 AMAQI
10th Jul 2025642 AMAQI
10th Jul 2025653 AMAQI
10th Jul 2025664 AMAQI
30°C25/36°C
10th Jul 2025665 AMAQI
10th Jul 2025666 AMAQI
10th Jul 2025667 AMAQI
10th Jul 2025628 AMAQI
10th Jul 2025619 AMAQI
10th Jul 20255910 AMAQI
10th Jul 20256511 AMAQI
10th Jul 20257012 PMAQI
10th Jul 2025721 PMAQI
10th Jul 2025742 PMAQI
10th Jul 2025733 PMAQI
10th Jul 2025684 PMAQI
10th Jul 2025685 PMAQI
10th Jul 2025656 PMAQI
10th Jul 2025667 PMAQI
10th Jul 2025678 PMAQI
10th Jul 2025689 PMAQI
10th Jul 20256810 PMAQI
10th Jul 20256611 PMAQI
11th Jul 20256812 AMAQI
11th Jul 2025651 AMAQI
11th Jul 2025662 AMAQI
11th Jul 2025673 AMAQI
11th Jul 2025674 AMAQI
31°C26/38°C
11th Jul 2025675 AMAQI
11th Jul 2025676 AMAQI
11th Jul 2025677 AMAQI
11th Jul 2025748 AMAQI
11th Jul 2025839 AMAQI
11th Jul 20258110 AMAQI
11th Jul 20257611 AMAQI
11th Jul 20257512 PMAQI
11th Jul 2025701 PMAQI
11th Jul 2025742 PMAQI
11th Jul 2025703 PMAQI
11th Jul 2025694 PMAQI
11th Jul 2025725 PMAQI
11th Jul 2025726 PMAQI
11th Jul 2025747 PMAQI
11th Jul 2025718 PMAQI
11th Jul 2025719 PMAQI
11th Jul 20257110 PMAQI
11th Jul 20257011 PMAQI
12th Jul 20257012 AMAQI
12th Jul 2025691 AMAQI
12th Jul 2025682 AMAQI
12th Jul 2025683 AMAQI
12th Jul 2025704 AMAQI
31°C26/38°C
12th Jul 2025705 AMAQI
12th Jul 2025706 AMAQI
12th Jul 2025707 AMAQI
12th Jul 2025888 AMAQI
12th Jul 2025909 AMAQI
12th Jul 20258010 AMAQI
12th Jul 20257611 AMAQI
12th Jul 20256912 PMAQI
12th Jul 2025701 PMAQI
12th Jul 2025722 PMAQI
12th Jul 2025703 PMAQI
12th Jul 2025714 PMAQI
12th Jul 2025705 PMAQI
12th Jul 2025716 PMAQI
12th Jul 2025727 PMAQI
12th Jul 2025698 PMAQI
12th Jul 2025689 PMAQI
12th Jul 20257010 PMAQI
12th Jul 20256811 PMAQI
13th Jul 20256912 AMAQI
13th Jul 2025701 AMAQI
13th Jul 2025702 AMAQI
13th Jul 2025703 AMAQI
13th Jul 2025714 AMAQI
32°C27/39°C
13th Jul 2025705 AMAQI
13th Jul 2025716 AMAQI
13th Jul 2025717 AMAQI
13th Jul 2025648 AMAQI
13th Jul 2025589 AMAQI
13th Jul 20256010 AMAQI
13th Jul 20255911 AMAQI
13th Jul 20255912 PMAQI
13th Jul 2025581 PMAQI
13th Jul 2025612 PMAQI
13th Jul 2025603 PMAQI
13th Jul 2025574 PMAQI
13th Jul 2025575 PMAQI
13th Jul 2025586 PMAQI
13th Jul 2025637 PMAQI
13th Jul 2025678 PMAQI
13th Jul 2025679 PMAQI
13th Jul 20256810 PMAQI
13th Jul 20256911 PMAQI
14th Jul 20256812 AMAQI
14th Jul 2025701 AMAQI
14th Jul 2025702 AMAQI
14th Jul 2025703 AMAQI
14th Jul 2025694 AMAQI
32°C25/39°C
14th Jul 2025695 AMAQI
14th Jul 2025686 AMAQI
14th Jul 2025697 AMAQI
14th Jul 2025648 AMAQI
14th Jul 2025589 AMAQI
14th Jul 20256010 AMAQI
14th Jul 20256011 AMAQI
14th Jul 20256012 PMAQI
14th Jul 2025591 PMAQI
14th Jul 2025612 PMAQI
14th Jul 2025623 PMAQI
14th Jul 2025604 PMAQI
14th Jul 2025635 PMAQI
14th Jul 2025646 PMAQI
14th Jul 2025647 PMAQI
14th Jul 2025668 PMAQI
14th Jul 2025679 PMAQI
14th Jul 20256710 PMAQI
14th Jul 20256711 PMAQI
15th Jul 20256812 AMAQI
15th Jul 2025681 AMAQI
15th Jul 2025682 AMAQI
15th Jul 2025683 AMAQI
15th Jul 2025684 AMAQI
32°C26/37°C
15th Jul 2025685 AMAQI
15th Jul 2025676 AMAQI
15th Jul 2025687 AMAQI
15th Jul 2025628 AMAQI
15th Jul 2025619 AMAQI
15th Jul 20256110 AMAQI
15th Jul 20255811 AMAQI
15th Jul 20256512 PMAQI
15th Jul 2025641 PMAQI
15th Jul 2025652 PMAQI
15th Jul 2025663 PMAQI
15th Jul 2025704 PMAQI
15th Jul 2025685 PMAQI
15th Jul 2025676 PMAQI
15th Jul 2025667 PMAQI
15th Jul 2025688 PMAQI
15th Jul 2025689 PMAQI
15th Jul 20256910 PMAQI
15th Jul 20257011 PMAQI
16th Jul 20257112 AMAQI
16th Jul 2025671 AMAQI
16th Jul 2025682 AMAQI
16th Jul 2025683 AMAQI
16th Jul 2025674 AMAQI
28°C22/33°C
16th Jul 2025675 AMAQI
16th Jul 2025676 AMAQI
16th Jul 2025687 AMAQI
16th Jul 2025678 AMAQI
16th Jul 2025699 AMAQI
16th Jul 20256210 AMAQI
16th Jul 20256111 AMAQI
16th Jul 20256312 PMAQI
16th Jul 2025621 PMAQI
16th Jul 2025602 PMAQI
16th Jul 2025603 PMAQI
16th Jul 2025624 PMAQI
16th Jul 2025625 PMAQI
16th Jul 2025616 PMAQI
16th Jul 2025637 PMAQI
16th Jul 2025668 PMAQI
16th Jul 2025669 PMAQI
16th Jul 20256710 PMAQI
16th Jul 20256811 PMAQI
17th Jul 20256812 AMAQI
17th Jul 2025691 AMAQI
17th Jul 2025702 AMAQI
17th Jul 2025703 AMAQI
17th Jul 2025684 AMAQI
27°C20/35°C
17th Jul 2025685 AMAQI
17th Jul 2025686 AMAQI
17th Jul 2025687 AMAQI
17th Jul 2025598 AMAQI
17th Jul 2025539 AMAQI
17th Jul 20255410 AMAQI
17th Jul 20255511 AMAQI
17th Jul 20255712 PMAQI
17th Jul 2025561 PMAQI
17th Jul 2025552 PMAQI
17th Jul 2025563 PMAQI
17th Jul 2025564 PMAQI
17th Jul 2025545 PMAQI
17th Jul 2025556 PMAQI
17th Jul 2025577 PMAQI
17th Jul 2025658 PMAQI
17th Jul 2025659 PMAQI
17th Jul 20256510 PMAQI
17th Jul 20256511 PMAQI
18th Jul 20256612 AMAQI
18th Jul 2025681 AMAQI
18th Jul 2025672 AMAQI
18th Jul 2025673 AMAQI
18th Jul 2025664 AMAQI
31°C24/38°C
18th Jul 2025675 AMAQI
18th Jul 2025666 AMAQI
18th Jul 2025677 AMAQI
18th Jul 2025718 AMAQI
18th Jul 2025749 AMAQI
18th Jul 20256810 AMAQI
18th Jul 20256011 AMAQI
18th Jul 20256012 PMAQI
18th Jul 2025611 PMAQI
18th Jul 2025612 PMAQI
18th Jul 2025593 PMAQI
18th Jul 2025604 PMAQI
18th Jul 2025615 PMAQI
18th Jul 2025606 PMAQI
18th Jul 2025617 PMAQI
18th Jul 2025658 PMAQI
18th Jul 2025669 PMAQI
18th Jul 20256710 PMAQI
18th Jul 20256611 PMAQI
19th Jul 20256612 AMAQI
19th Jul 2025661 AMAQI
19th Jul 2025662 AMAQI
19th Jul 2025663 AMAQI
19th Jul 2025664 AMAQI
31°C25/38°C
19th Jul 2025665 AMAQI
19th Jul 2025666 AMAQI
19th Jul 2025667 AMAQI
19th Jul 2025648 AMAQI
19th Jul 2025639 AMAQI
19th Jul 20256010 AMAQI
19th Jul 20256211 AMAQI
19th Jul 20256612 PMAQI
19th Jul 2025621 PMAQI
19th Jul 2025642 PMAQI
19th Jul 2025623 PMAQI
19th Jul 2025634 PMAQI
19th Jul 2025635 PMAQI
19th Jul 2025646 PMAQI
19th Jul 2025627 PMAQI
19th Jul 2025668 PMAQI
19th Jul 2025679 PMAQI
19th Jul 20256810 PMAQI
19th Jul 20256811 PMAQI
20th Jul 20256812 AMAQI
20th Jul 2025661 AMAQI
20th Jul 2025662 AMAQI
20th Jul 2025663 AMAQI
20th Jul 2025664 AMAQI
30°C25/36°C
20th Jul 2025665 AMAQI
20th Jul 2025666 AMAQI
20th Jul 2025667 AMAQI
20th Jul 2025658 AMAQI
20th Jul 2025609 AMAQI
20th Jul 20255710 AMAQI
20th Jul 20255511 AMAQI
20th Jul 20255712 PMAQI
20th Jul 2025561 PMAQI
20th Jul 2025582 PMAQI
20th Jul 2025543 PMAQI
20th Jul 2025574 PMAQI
20th Jul 2025575 PMAQI
20th Jul 2025586 PMAQI
20th Jul 2025607 PMAQI
20th Jul 2025648 PMAQI
20th Jul 2025659 PMAQI
20th Jul 20256610 PMAQI
20th Jul 20256611 PMAQI
21st Jul 20256712 AMAQI
21st Jul 2025661 AMAQI
21st Jul 2025672 AMAQI
21st Jul 2025663 AMAQI
21st Jul 2025654 AMAQI
24°C22/24°C
21st Jul 2025655 AMAQI
21st Jul 2025656 AMAQI
21st Jul 2025647 AMAQI
21st Jul 2025728 AMAQI
21st Jul 2025709 AMAQI
21st Jul 20256010 AMAQI
21st Jul 20255711 AMAQI
21st Jul 20255612 PMAQI
21st Jul 2025581 PMAQI
21st Jul 2025582 PMAQI
21st Jul 2025563 PMAQI
21st Jul 2025554 PMAQI
21st Jul 2025575 PMAQI
21st Jul 2025576 PMAQI
21st Jul 2025577 PMAQI
21st Jul 2025648 PMAQI
21st Jul 2025649 PMAQI
21st Jul 20256510 PMAQI
21st Jul 20256711 PMAQI
22nd Jul 20256812 AMAQI
22nd Jul 2025661 AMAQI
22nd Jul 2025662 AMAQI
22nd Jul 2025663 AMAQI
22nd Jul 2025664 AMAQI
29°C22/36°C
22nd Jul 2025665 AMAQI
22nd Jul 2025666 AMAQI
22nd Jul 2025667 AMAQI
22nd Jul 2025788 AMAQI
22nd Jul 2025799 AMAQI
22nd Jul 20257310 AMAQI
22nd Jul 20256611 AMAQI
22nd Jul 20256712 PMAQI
22nd Jul 2025641 PMAQI
22nd Jul 2025622 PMAQI
22nd Jul 2025623 PMAQI
22nd Jul 2025614 PMAQI
22nd Jul 2025625 PMAQI
22nd Jul 2025606 PMAQI
22nd Jul 2025627 PMAQI
22nd Jul 2025648 PMAQI
22nd Jul 2025669 PMAQI
22nd Jul 20256610 PMAQI
22nd Jul 20256611 PMAQI
23rd Jul 20257012 AMAQI
23rd Jul 2025651 AMAQI
23rd Jul 2025662 AMAQI
23rd Jul 2025673 AMAQI
23rd Jul 2025684 AMAQI
30°C23/37°C
23rd Jul 2025695 AMAQI
23rd Jul 2025686 AMAQI
23rd Jul 2025697 AMAQI
23rd Jul 2025758 AMAQI
23rd Jul 2025739 AMAQI
23rd Jul 20257010 AMAQI
23rd Jul 20256611 AMAQI
23rd Jul 20256512 PMAQI
23rd Jul 2025641 PMAQI
23rd Jul 2025622 PMAQI
23rd Jul 2025643 PMAQI
23rd Jul 2025624 PMAQI
23rd Jul 2025595 PMAQI
23rd Jul 2025606 PMAQI
23rd Jul 2025617 PMAQI
23rd Jul 2025648 PMAQI
23rd Jul 2025649 PMAQI
23rd Jul 20256410 PMAQI
23rd Jul 20256411 PMAQI
24th Jul 20256512 AMAQI
24th Jul 2025681 AMAQI
24th Jul 2025682 AMAQI
24th Jul 2025683 AMAQI
24th Jul 2025674 AMAQI
30°C25/35°C
24th Jul 2025675 AMAQI
24th Jul 2025686 AMAQI
24th Jul 2025677 AMAQI
24th Jul 2025608 AMAQI
24th Jul 2025599 AMAQI
24th Jul 20255810 AMAQI
24th Jul 20256211 AMAQI
24th Jul 20256412 PMAQI
24th Jul 2025651 PMAQI
24th Jul 2025662 PMAQI
24th Jul 2025633 PMAQI
24th Jul 2025584 PMAQI
24th Jul 2025585 PMAQI
24th Jul 2025606 PMAQI
24th Jul 2025577 PMAQI
24th Jul 2025628 PMAQI
24th Jul 2025639 PMAQI
24th Jul 20256310 PMAQI
24th Jul 20256311 PMAQI
25th Jul 20256412 AMAQI
25th Jul 2025651 AMAQI
25th Jul 2025652 AMAQI
25th Jul 2025653 AMAQI
25th Jul 2025654 AMAQI
29°C25/35°C
25th Jul 2025665 AMAQI
25th Jul 2025666 AMAQI
25th Jul 2025657 AMAQI
25th Jul 2025618 AMAQI
25th Jul 2025569 AMAQI
25th Jul 20255610 AMAQI
25th Jul 20255711 AMAQI
25th Jul 20256412 PMAQI
25th Jul 2025671 PMAQI
25th Jul 2025692 PMAQI
25th Jul 2025683 PMAQI
25th Jul 2025694 PMAQI
25th Jul 2025685 PMAQI
25th Jul 2025616 PMAQI
25th Jul 2025617 PMAQI
25th Jul 2025648 PMAQI
25th Jul 2025669 PMAQI
25th Jul 20256810 PMAQI
25th Jul 20256611 PMAQI
26th Jul 20256912 AMAQI
26th Jul 2025641 AMAQI
26th Jul 2025642 AMAQI
26th Jul 2025643 AMAQI
26th Jul 2025644 AMAQI
30°C26/35°C
26th Jul 2025645 AMAQI
26th Jul 2025656 AMAQI
26th Jul 2025647 AMAQI
26th Jul 2025688 AMAQI
26th Jul 2025699 AMAQI
26th Jul 20256210 AMAQI
26th Jul 20256411 AMAQI
26th Jul 20256312 PMAQI
26th Jul 2025611 PMAQI
26th Jul 2025592 PMAQI
26th Jul 2025583 PMAQI
26th Jul 2025624 PMAQI
26th Jul 2025615 PMAQI
26th Jul 2025606 PMAQI
26th Jul 2025617 PMAQI
26th Jul 2025648 PMAQI
26th Jul 2025639 PMAQI
26th Jul 20256410 PMAQI
26th Jul 20256411 PMAQI
27th Jul 20256312 AMAQI
27th Jul 2025641 AMAQI
27th Jul 2025642 AMAQI
27th Jul 2025643 AMAQI
27th Jul 2025654 AMAQI
32°C27/38°C
27th Jul 2025655 AMAQI
27th Jul 2025656 AMAQI
27th Jul 2025657 AMAQI
27th Jul 2025708 AMAQI
27th Jul 2025699 AMAQI
27th Jul 20256210 AMAQI
27th Jul 20256411 AMAQI
27th Jul 20256412 PMAQI
27th Jul 2025611 PMAQI
27th Jul 2025572 PMAQI
27th Jul 2025603 PMAQI
27th Jul 2025594 PMAQI
27th Jul 2025585 PMAQI
27th Jul 2025606 PMAQI
27th Jul 2025617 PMAQI
27th Jul 2025638 PMAQI
27th Jul 2025629 PMAQI
27th Jul 20256410 PMAQI
27th Jul 20256411 PMAQI
28th Jul 20256512 AMAQI
28th Jul 2025651 AMAQI
28th Jul 2025642 AMAQI
28th Jul 2025643 AMAQI
28th Jul 2025654 AMAQI
30°C27/35°C
28th Jul 2025645 AMAQI
28th Jul 2025646 AMAQI
28th Jul 2025657 AMAQI
28th Jul 2025668 AMAQI
28th Jul 2025669 AMAQI
28th Jul 20256010 AMAQI
28th Jul 20255511 AMAQI
28th Jul 20255612 PMAQI
28th Jul 2025601 PMAQI
28th Jul 2025652 PMAQI
28th Jul 2025633 PMAQI
28th Jul 2025614 PMAQI
28th Jul 2025615 PMAQI
28th Jul 2025596 PMAQI
28th Jul 2025627 PMAQI
28th Jul 2025658 PMAQI
28th Jul 2025659 PMAQI
28th Jul 20256410 PMAQI
28th Jul 20256511 PMAQI
29th Jul 20256212 AMAQI
29th Jul 2025631 AMAQI
29th Jul 2025632 AMAQI
29th Jul 2025643 AMAQI
29th Jul 2025644 AMAQI
29°C24/36°C
29th Jul 2025645 AMAQI
29th Jul 2025656 AMAQI
29th Jul 2025647 AMAQI
29th Jul 2025548 AMAQI
29th Jul 2025509 AMAQI
29th Jul 20255010 AMAQI
29th Jul 20255111 AMAQI
29th Jul 20255012 PMAQI
29th Jul 2025521 PMAQI
29th Jul 2025522 PMAQI
29th Jul 2025523 PMAQI
29th Jul 2025524 PMAQI
29th Jul 2025525 PMAQI
29th Jul 2025526 PMAQI
29th Jul 2025567 PMAQI
29th Jul 2025608 PMAQI
29th Jul 2025599 PMAQI
29th Jul 20255910 PMAQI
29th Jul 20255911 PMAQI
30th Jul 20256012 AMAQI
30th Jul 2025631 AMAQI
30th Jul 2025632 AMAQI
30th Jul 2025633 AMAQI
30th Jul 2025614 AMAQI
27°C24/31°C
30th Jul 2025615 AMAQI
30th Jul 2025626 AMAQI
30th Jul 2025607 AMAQI
30th Jul 2025588 AMAQI
30th Jul 2025589 AMAQI
30th Jul 20255410 AMAQI
30th Jul 20255211 AMAQI
30th Jul 20255212 PMAQI
30th Jul 2025521 PMAQI
30th Jul 2025522 PMAQI
30th Jul 2025523 PMAQI
30th Jul 2025534 PMAQI
30th Jul 2025525 PMAQI
30th Jul 2025536 PMAQI
30th Jul 2025557 PMAQI
30th Jul 2025598 PMAQI
30th Jul 2025609 PMAQI
30th Jul 20256010 PMAQI
30th Jul 20256011 PMAQI
31st Jul 20256012 AMAQI
31st Jul 2025601 AMAQI
31st Jul 2025612 AMAQI
31st Jul 2025603 AMAQI
31st Jul 2025604 AMAQI
28°C23/34°C
31st Jul 2025605 AMAQI
31st Jul 2025606 AMAQI
31st Jul 2025607 AMAQI
31st Jul 2025608 AMAQI
31st Jul 2025609 AMAQI
31st Jul 20256410 AMAQI
31st Jul 20255811 AMAQI
31st Jul 20255912 PMAQI
31st Jul 2025571 PMAQI
31st Jul 2025592 PMAQI
31st Jul 2025593 PMAQI
31st Jul 2025614 PMAQI
31st Jul 2025585 PMAQI
31st Jul 2025586 PMAQI
31st Jul 2025607 PMAQI
31st Jul 2025688 PMAQI
31st Jul 2025699 PMAQI
31st Jul 20256710 PMAQI
31st Jul 20256811 PMAQI
1st Aug 20256712 AMAQI
1st Aug 2025591 AMAQI
1st Aug 2025582 AMAQI
1st Aug 2025593 AMAQI
1st Aug 2025594 AMAQI
27°C22/31°C
1st Aug 2025585 AMAQI
1st Aug 2025586 AMAQI
1st Aug 2025597 AMAQI
1st Aug 2025728 AMAQI
1st Aug 2025679 AMAQI
1st Aug 20256710 AMAQI
1st Aug 20256311 AMAQI
1st Aug 20256012 PMAQI
1st Aug 2025661 PMAQI
1st Aug 2025702 PMAQI
1st Aug 2025693 PMAQI
1st Aug 2025754 PMAQI
1st Aug 2025765 PMAQI
1st Aug 2025696 PMAQI
1st Aug 2025727 PMAQI
1st Aug 2025678 PMAQI
1st Aug 2025709 PMAQI
1st Aug 20256610 PMAQI
1st Aug 20257011 PMAQI
2nd Aug 20256512 AMAQI
2nd Aug 2025591 AMAQI
2nd Aug 2025592 AMAQI
2nd Aug 2025613 AMAQI
2nd Aug 2025624 AMAQI
29°C23/35°C
2nd Aug 2025625 AMAQI
2nd Aug 2025626 AMAQI
2nd Aug 2025627 AMAQI
2nd Aug 2025778 AMAQI
2nd Aug 2025789 AMAQI
2nd Aug 20257010 AMAQI
2nd Aug 20256211 AMAQI
2nd Aug 20255812 PMAQI
2nd Aug 2025621 PMAQI
2nd Aug 2025622 PMAQI
2nd Aug 2025623 PMAQI
2nd Aug 2025644 PMAQI
2nd Aug 2025665 PMAQI
2nd Aug 2025676 PMAQI
2nd Aug 2025647 PMAQI
2nd Aug 2025648 PMAQI
2nd Aug 2025639 PMAQI
2nd Aug 20256410 PMAQI
2nd Aug 20256311 PMAQI
3rd Aug 20256112 AMAQI
--°C/°C
5 AM
12 PM
7 PM
12 AM
4 AM
--°C/°C
Day time
Avg. Highest Time
5 AM - 7 PM
63AQI
15 hours / Day
450 hours / Month
Avg. Lowest Time
5 AM - 7 PM
63AQI
15 hours / Day
450 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 5 AM to 7 PM (Avg. 63), while the lowest AQI was between 5 AM to 7 PM (Avg. 63).
Night time
Avg. Highest Time
12 AM - 11 PM
66AQI
9 hours / Day
270 hours / Month
Avg. Lowest Time
12 AM - 11 PM
66AQI
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. 66), while the lowest AQI was between 12 AM to 11 PM (Avg. 66).
2025 Days Vs Air Quality
Environmental Monitoring Supervision Center, Langfang, Hebei, China
2025
77%
163
22%
47
1%
3
Total number of days with different AQI categories in last 214 days in 2025 (151 days remaining)
Good
0 DaysModerate
163 DaysPoor
47 DaysUnhealthy
3 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 0%
Health Risk Level:
Extreme
In 2025, 0% of 214 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
Environmental Monitoring Supervision Center, Langfang, 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
93AQI
93AQI
2nd January 2025
80AQI
80AQI
3rd January 2025
83AQI
83AQI
4th January 2025
94AQI
94AQI
5th January 2025
90AQI
90AQI
6th January 2025
81AQI
81AQI
7th January 2025
74AQI
74AQI
8th January 2025
65AQI
65AQI
9th January 2025
61AQI
61AQI
10th January 2025
59AQI
59AQI
11th January 2025
61AQI
61AQI
12th January 2025
59AQI
59AQI
13th January 2025
77AQI
77AQI
14th January 2025
64AQI
64AQI
15th January 2025
69AQI
69AQI
16th January 2025
63AQI
63AQI
17th January 2025
79AQI
79AQI
18th January 2025
106AQI
106AQI
19th January 2025
86AQI
86AQI
20th January 2025
112AQI
112AQI
21st January 2025
96AQI
96AQI
22nd January 2025
105AQI
105AQI
23rd January 2025
100AQI
100AQI
24th January 2025
123AQI
123AQI
25th January 2025
132AQI
132AQI
26th January 2025
123AQI
123AQI
27th January 2025
100AQI
100AQI
28th January 2025
96AQI
96AQI
29th January 2025
133AQI
133AQI
30th January 2025
108AQI
108AQI
31st January 2025
122AQI
122AQI
1st February 2025
108AQI
108AQI
2nd February 2025
105AQI
105AQI
3rd February 2025
87AQI
87AQI
4th February 2025
80AQI
80AQI
5th February 2025
70AQI
70AQI
6th February 2025
67AQI
67AQI
7th February 2025
59AQI
59AQI
8th February 2025
56AQI
56AQI
9th February 2025
57AQI
57AQI
10th February 2025
92AQI
92AQI
11th February 2025
109AQI
109AQI
12th February 2025
92AQI
92AQI
13th February 2025
108AQI
108AQI
14th February 2025
110AQI
110AQI
15th February 2025
116AQI
116AQI
16th February 2025
91AQI
91AQI
17th February 2025
87AQI
87AQI
18th February 2025
85AQI
85AQI
19th February 2025
79AQI
79AQI
20th February 2025
79AQI
79AQI
21st February 2025
70AQI
70AQI
22nd February 2025
67AQI
67AQI
23rd February 2025
61AQI
61AQI
24th February 2025
70AQI
70AQI
25th February 2025
66AQI
66AQI
26th February 2025
82AQI
82AQI
27th February 2025
116AQI
116AQI
28th February 2025
130AQI
130AQI
1st March 2025
158AQI
158AQI
2nd March 2025
123AQI
123AQI
3rd March 2025
113AQI
113AQI
4th March 2025
108AQI
108AQI
5th March 2025
121AQI
121AQI
6th March 2025
102AQI
102AQI
7th March 2025
115AQI
115AQI
8th March 2025
124AQI
124AQI
9th March 2025
142AQI
142AQI
10th March 2025
153AQI
153AQI
11th March 2025
164AQI
164AQI
12th March 2025
128AQI
128AQI
13th March 2025
147AQI
147AQI
14th March 2025
126AQI
126AQI
15th March 2025
114AQI
114AQI
16th March 2025
98AQI
98AQI
17th March 2025
88AQI
88AQI
18th March 2025
82AQI
82AQI
19th March 2025
76AQI
76AQI
20th March 2025
68AQI
68AQI
21st March 2025
65AQI
65AQI
22nd March 2025
64AQI
64AQI
23rd March 2025
82AQI
82AQI
24th March 2025
68AQI
68AQI
25th March 2025
68AQI
68AQI
26th March 2025
82AQI
82AQI
27th March 2025
67AQI
67AQI
28th March 2025
71AQI
71AQI
29th March 2025
61AQI
61AQI
30th March 2025
67AQI
67AQI
31st March 2025
79AQI
79AQI
1st April 2025
73AQI
73AQI
2nd April 2025
68AQI
68AQI
3rd April 2025
80AQI
80AQI
4th April 2025
106AQI
106AQI
5th April 2025
77AQI
77AQI
6th April 2025
100AQI
100AQI
7th April 2025
88AQI
88AQI
8th April 2025
83AQI
83AQI
9th April 2025
84AQI
84AQI
10th April 2025
95AQI
95AQI
11th April 2025
113AQI
113AQI
12th April 2025
93AQI
93AQI
13th April 2025
91AQI
91AQI
14th April 2025
79AQI
79AQI
15th April 2025
80AQI
80AQI
16th April 2025
105AQI
105AQI
17th April 2025
93AQI
93AQI
18th April 2025
92AQI
92AQI
19th April 2025
88AQI
88AQI
20th April 2025
103AQI
103AQI
21st April 2025
120AQI
120AQI
22nd April 2025
92AQI
92AQI
23rd April 2025
98AQI
98AQI
24th April 2025
74AQI
74AQI
25th April 2025
82AQI
82AQI
26th April 2025
102AQI
102AQI
27th April 2025
80AQI
80AQI
28th April 2025
87AQI
87AQI
29th April 2025
85AQI
85AQI
30th April 2025
81AQI
81AQI
1st May 2025
75AQI
75AQI
2nd May 2025
75AQI
75AQI
3rd May 2025
64AQI
64AQI
4th May 2025
74AQI
74AQI
5th May 2025
82AQI
82AQI
6th May 2025
73AQI
73AQI
7th May 2025
91AQI
91AQI
8th May 2025
102AQI
102AQI
9th May 2025
82AQI
82AQI
10th May 2025
88AQI
88AQI
11th May 2025
89AQI
89AQI
12th May 2025
99AQI
99AQI
13th May 2025
97AQI
97AQI
14th May 2025
84AQI
84AQI
15th May 2025
81AQI
81AQI
16th May 2025
102AQI
102AQI
17th May 2025
77AQI
77AQI
18th May 2025
89AQI
89AQI
19th May 2025
92AQI
92AQI
20th May 2025
116AQI
116AQI
21st May 2025
107AQI
107AQI
22nd May 2025
123AQI
123AQI
23rd May 2025
113AQI
113AQI
24th May 2025
99AQI
99AQI
25th May 2025
97AQI
97AQI
26th May 2025
99AQI
99AQI
27th May 2025
101AQI
101AQI
28th May 2025
103AQI
103AQI
29th May 2025
101AQI
101AQI
30th May 2025
102AQI
102AQI
31st May 2025
103AQI
103AQI
1st June 2025
109AQI
109AQI
2nd June 2025
96AQI
96AQI
3rd June 2025
81AQI
81AQI
4th June 2025
74AQI
74AQI
5th June 2025
75AQI
75AQI
6th June 2025
72AQI
72AQI
7th June 2025
72AQI
72AQI
8th June 2025
72AQI
72AQI
9th June 2025
74AQI
74AQI
10th June 2025
69AQI
69AQI
11th June 2025
74AQI
74AQI
12th June 2025
81AQI
81AQI
13th June 2025
86AQI
86AQI
14th June 2025
85AQI
85AQI
15th June 2025
75AQI
75AQI
16th June 2025
68AQI
68AQI
17th June 2025
71AQI
71AQI
18th June 2025
76AQI
76AQI
19th June 2025
70AQI
70AQI
20th June 2025
66AQI
66AQI
21st June 2025
63AQI
63AQI
22nd June 2025
58AQI
58AQI
23rd June 2025
66AQI
66AQI
24th June 2025
72AQI
72AQI
25th June 2025
69AQI
69AQI
26th June 2025
70AQI
70AQI
27th June 2025
71AQI
71AQI
28th June 2025
72AQI
72AQI
29th June 2025
76AQI
76AQI
30th June 2025
71AQI
71AQI
1st July 2025
69AQI
69AQI
2nd July 2025
70AQI
70AQI
3rd July 2025
66AQI
66AQI
4th July 2025
69AQI
69AQI
5th July 2025
68AQI
68AQI
6th July 2025
63AQI
63AQI
7th July 2025
63AQI
63AQI
8th July 2025
63AQI
63AQI
9th July 2025
65AQI
65AQI
10th July 2025
67AQI
67AQI
11th July 2025
71AQI
71AQI
12th July 2025
71AQI
71AQI
13th July 2025
66AQI
66AQI
14th July 2025
66AQI
66AQI
15th July 2025
67AQI
67AQI
16th July 2025
66AQI
66AQI
17th July 2025
63AQI
63AQI
18th July 2025
65AQI
65AQI
19th July 2025
65AQI
65AQI
20th July 2025
63AQI
63AQI
21st July 2025
63AQI
63AQI
22nd July 2025
66AQI
66AQI
23rd July 2025
66AQI
66AQI
24th July 2025
64AQI
64AQI
25th July 2025
64AQI
64AQI
26th July 2025
64AQI
64AQI
27th July 2025
63AQI
63AQI
28th July 2025
63AQI
63AQI
29th July 2025
58AQI
58AQI
30th July 2025
58AQI
58AQI
31st July 2025
61AQI
61AQI
1st August 2025
66AQI
66AQI
90AQI
86AQI
101AQI
90AQI
93AQI
74AQI
65AQI
66AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202585AQI
22
9
20
8
16
12
3
24
6
20
11
29
1
31
1
163
47
3
Highest AQI recorded in
March101AQI
Lowest AQI recorded in
July65AQI
202423AQI
31
29
31
30
31
30
31
31
30
10
8
7
5
1
1
13
9
7
31
285
52
16
12
1
Highest AQI recorded in
November111AQI
Lowest AQI recorded in
September0AQI
20230AQI
31
28
31
30
31
30
31
29
30
31
29
31
362
Highest AQI recorded in
May1AQI
Lowest AQI recorded in
December0AQI
20220AQI
30
20
31
29
31
30
23
1
28
31
30
31
315
Highest AQI recorded in
July0AQI
Lowest AQI recorded in
December0AQI
202143AQI
1
13
10
7
1
10
8
7
2
1
5
11
12
2
3
16
10
1
18
8
3
1
30
31
31
30
31
30
31
238
52
42
26
4
2
Highest AQI recorded in
March155AQI
Lowest AQI recorded in
December0AQI
202095AQI
2
6
4
1
2
13
6
5
10
3
24
6
1
13
15
2
2
13
16
4
18
6
1
4
9
11
7
6
12
5
6
1
4
12
9
5
1
30
130
81
22
2
Highest AQI recorded in
October108AQI
Lowest AQI recorded in
May76AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2020(Avg.)
95AQILeast Polluted Year Recorded
2022(Avg.)
0AQIEnvironmental Monitoring Supervision Center's annual 2025 AQI (85) shows an average percentage change of 215918.2% (worsened AQI) compared to previous years: 2020 (95), 2021 (43), 2022 (0), 2023 (0), 2024 (23).
