Country Background

Hejian, 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

Hejian, Hebei, China

2021
2022
2024
2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
4th Aug 2021
123AQI
Lowest AQI recorded on
3rd Aug 2022
46AQI


Same Day Analysis (20th August ):
On this day, AQI across the 4 years varied significantly: 2025 ranks 3rd highest AQI at 60 of Moderate air quality, showing improvement over 2024 and 2021 on the same day.

Download 2024 Annual Data

World Air Quality Report

Globe

Day & Night AQI Trend: 20th Aug - 21st Aug 2025

Hejian, Hebei, China

AQI
Day
Night
.

5 AM20th Aug 2025

7 PM

4 AM21st Aug 2025

Day time
Avg. Highest Time
5PM20th Aug

64AQI

Avg. Lowest Time
8AM20th Aug

56AQI

Night time
Avg. Highest Time
8PM20th Aug

63AQI

Avg. Lowest Time
3AM21st Aug

60AQI

In the last 24 hours,

Hejian's AQI reached its highest point of 64 at 5 PM during the Day, while the lowest point, 56, was recorded at 8 AM during the Day between 20th Aug and 21st Aug 2025.

Day & Night AQI Trend : Jul - Aug 2025

Hejian, Hebei, China

JulAug
22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 31st31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st
Day
Night
22nd Jul 2025705 AMAQI
22nd Jul 2025706 AMAQI
22nd Jul 2025707 AMAQI
22nd Jul 2025748 AMAQI
22nd Jul 2025699 AMAQI
22nd Jul 20256210 AMAQI
22nd Jul 20255311 AMAQI
22nd Jul 20255812 PMAQI
22nd Jul 2025551 PMAQI
22nd Jul 2025542 PMAQI
22nd Jul 2025583 PMAQI
22nd Jul 2025574 PMAQI
22nd Jul 2025565 PMAQI
22nd Jul 2025596 PMAQI
22nd Jul 2025597 PMAQI
22nd Jul 2025648 PMAQI
22nd Jul 2025669 PMAQI
22nd Jul 20256710 PMAQI
22nd Jul 20256711 PMAQI
23rd Jul 20256912 AMAQI
23rd Jul 2025671 AMAQI
23rd Jul 2025692 AMAQI
23rd Jul 2025693 AMAQI
23rd Jul 2025674 AMAQI

30°C24/36°C

23rd Jul 2025685 AMAQI
23rd Jul 2025676 AMAQI
23rd Jul 2025677 AMAQI
23rd Jul 2025618 AMAQI
23rd Jul 2025629 AMAQI
23rd Jul 20256310 AMAQI
23rd Jul 20256211 AMAQI
23rd Jul 20256012 PMAQI
23rd Jul 2025591 PMAQI
23rd Jul 2025522 PMAQI
23rd Jul 2025513 PMAQI
23rd Jul 2025544 PMAQI
23rd Jul 2025515 PMAQI
23rd Jul 2025546 PMAQI
23rd Jul 2025557 PMAQI
23rd Jul 2025628 PMAQI
23rd Jul 2025619 PMAQI
23rd Jul 20256110 PMAQI
23rd Jul 20256111 PMAQI
24th Jul 20256312 AMAQI
24th Jul 2025651 AMAQI
24th Jul 2025672 AMAQI
24th Jul 2025673 AMAQI
24th Jul 2025674 AMAQI

30°C26/34°C

24th Jul 2025675 AMAQI
24th Jul 2025676 AMAQI
24th Jul 2025677 AMAQI
24th Jul 2025628 AMAQI
24th Jul 2025609 AMAQI
24th Jul 20256310 AMAQI
24th Jul 20256711 AMAQI
24th Jul 20256912 PMAQI
24th Jul 2025661 PMAQI
24th Jul 2025642 PMAQI
24th Jul 2025613 PMAQI
24th Jul 2025604 PMAQI
24th Jul 2025685 PMAQI
24th Jul 2025626 PMAQI
24th Jul 2025597 PMAQI
24th Jul 2025638 PMAQI
24th Jul 2025639 PMAQI
24th Jul 20256310 PMAQI
24th Jul 20256411 PMAQI
25th Jul 20256312 AMAQI
25th Jul 2025631 AMAQI
25th Jul 2025642 AMAQI
25th Jul 2025653 AMAQI
25th Jul 2025654 AMAQI

30°C26/35°C

25th Jul 2025655 AMAQI
25th Jul 2025646 AMAQI
25th Jul 2025657 AMAQI
25th Jul 2025658 AMAQI
25th Jul 2025659 AMAQI
25th Jul 20256710 AMAQI
25th Jul 20256911 AMAQI
25th Jul 20257212 PMAQI
25th Jul 2025711 PMAQI
25th Jul 2025692 PMAQI
25th Jul 2025713 PMAQI
25th Jul 2025714 PMAQI
25th Jul 2025665 PMAQI
25th Jul 2025686 PMAQI
25th Jul 2025707 PMAQI
25th Jul 2025688 PMAQI
25th Jul 2025679 PMAQI
25th Jul 20256810 PMAQI
25th Jul 20256811 PMAQI
26th Jul 20256712 AMAQI
26th Jul 2025631 AMAQI
26th Jul 2025642 AMAQI
26th Jul 2025653 AMAQI
26th Jul 2025644 AMAQI

31°C27/37°C

26th Jul 2025645 AMAQI
26th Jul 2025656 AMAQI
26th Jul 2025647 AMAQI
26th Jul 2025788 AMAQI
26th Jul 2025829 AMAQI
26th Jul 20258010 AMAQI
26th Jul 20257511 AMAQI
26th Jul 20256912 PMAQI
26th Jul 2025661 PMAQI
26th Jul 2025612 PMAQI
26th Jul 2025603 PMAQI
26th Jul 2025584 PMAQI
26th Jul 2025605 PMAQI
26th Jul 2025606 PMAQI
26th Jul 2025627 PMAQI
26th Jul 2025648 PMAQI
26th Jul 2025649 PMAQI
26th Jul 20256310 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 2025698 AMAQI
27th Jul 2025669 AMAQI
27th Jul 20256510 AMAQI
27th Jul 20256211 AMAQI
27th Jul 20255512 PMAQI
27th Jul 2025621 PMAQI
27th Jul 2025632 PMAQI
27th Jul 2025583 PMAQI
27th Jul 2025584 PMAQI
27th Jul 2025585 PMAQI
27th Jul 2025516 PMAQI
27th Jul 2025557 PMAQI
27th Jul 2025608 PMAQI
27th Jul 2025609 PMAQI
27th Jul 20256310 PMAQI
27th Jul 20256411 PMAQI
28th Jul 20256512 AMAQI
28th Jul 2025641 AMAQI
28th Jul 2025642 AMAQI
28th Jul 2025653 AMAQI
28th Jul 2025644 AMAQI

32°C27/38°C

28th Jul 2025645 AMAQI
28th Jul 2025646 AMAQI
28th Jul 2025647 AMAQI
28th Jul 2025738 AMAQI
28th Jul 2025789 AMAQI
28th Jul 20257310 AMAQI
28th Jul 20257211 AMAQI
28th Jul 20256612 PMAQI
28th Jul 2025651 PMAQI
28th Jul 2025692 PMAQI
28th Jul 2025693 PMAQI
28th Jul 2025634 PMAQI
28th Jul 2025645 PMAQI
28th Jul 2025646 PMAQI
28th Jul 2025677 PMAQI
28th Jul 2025658 PMAQI
28th Jul 2025649 PMAQI
28th Jul 20256610 PMAQI
28th Jul 20256811 PMAQI
29th Jul 20256712 AMAQI
29th Jul 2025631 AMAQI
29th Jul 2025632 AMAQI
29th Jul 2025643 AMAQI
29th Jul 2025654 AMAQI

33°C28/39°C

29th Jul 2025655 AMAQI
29th Jul 2025666 AMAQI
29th Jul 2025657 AMAQI
29th Jul 2025548 AMAQI
29th Jul 2025379 AMAQI
29th Jul 20253810 AMAQI
29th Jul 20254811 AMAQI
29th Jul 20256212 PMAQI
29th Jul 2025651 PMAQI
29th Jul 2025602 PMAQI
29th Jul 2025493 PMAQI
29th Jul 2025404 PMAQI
29th Jul 2025425 PMAQI
29th Jul 2025456 PMAQI
29th Jul 2025467 PMAQI
29th Jul 2025608 PMAQI
29th Jul 2025589 PMAQI
29th Jul 20255810 PMAQI
29th Jul 20255911 PMAQI
30th Jul 20256012 AMAQI
30th Jul 2025631 AMAQI
30th Jul 2025642 AMAQI
30th Jul 2025633 AMAQI
30th Jul 2025634 AMAQI

30°C25/35°C

30th Jul 2025635 AMAQI
30th Jul 2025636 AMAQI
30th Jul 2025637 AMAQI
30th Jul 2025688 AMAQI
30th Jul 2025699 AMAQI
30th Jul 20256410 AMAQI
30th Jul 20256411 AMAQI
30th Jul 20256212 PMAQI
30th Jul 2025591 PMAQI
30th Jul 2025612 PMAQI
30th Jul 2025583 PMAQI
30th Jul 2025594 PMAQI
30th Jul 2025595 PMAQI
30th Jul 2025566 PMAQI
30th Jul 2025567 PMAQI
30th Jul 2025608 PMAQI
30th Jul 2025619 PMAQI
30th Jul 20256110 PMAQI
30th Jul 20256011 PMAQI
31st Jul 20255812 AMAQI
31st Jul 2025611 AMAQI
31st Jul 2025622 AMAQI
31st Jul 2025613 AMAQI
31st Jul 2025614 AMAQI

29°C24/35°C

31st Jul 2025615 AMAQI
31st Jul 2025616 AMAQI
31st Jul 2025617 AMAQI
31st Jul 2025618 AMAQI
31st Jul 2025619 AMAQI
31st Jul 20255710 AMAQI
31st Jul 20255611 AMAQI
31st Jul 20255812 PMAQI
31st Jul 2025571 PMAQI
31st Jul 2025532 PMAQI
31st Jul 2025543 PMAQI
31st Jul 2025534 PMAQI
31st Jul 2025545 PMAQI
31st Jul 2025566 PMAQI
31st Jul 2025597 PMAQI
31st Jul 2025628 PMAQI
31st Jul 2025639 PMAQI
31st Jul 20256110 PMAQI
31st Jul 20256211 PMAQI
1st Aug 20256412 AMAQI
1st Aug 2025601 AMAQI
1st Aug 2025592 AMAQI
1st Aug 2025603 AMAQI
1st Aug 2025594 AMAQI

28°C23/33°C

1st Aug 2025605 AMAQI
1st Aug 2025596 AMAQI
1st Aug 2025597 AMAQI
1st Aug 2025778 AMAQI
1st Aug 2025709 AMAQI
1st Aug 20257210 AMAQI
1st Aug 20256711 AMAQI
1st Aug 20255812 PMAQI
1st Aug 2025651 PMAQI
1st Aug 2025672 PMAQI
1st Aug 2025663 PMAQI
1st Aug 2025714 PMAQI
1st Aug 2025705 PMAQI
1st Aug 2025706 PMAQI
1st Aug 2025667 PMAQI
1st Aug 2025658 PMAQI
1st Aug 2025649 PMAQI
1st Aug 20256210 PMAQI
1st Aug 20256211 PMAQI
2nd Aug 20256212 AMAQI
2nd Aug 2025591 AMAQI
2nd Aug 2025592 AMAQI
2nd Aug 2025613 AMAQI
2nd Aug 2025624 AMAQI

30°C25/36°C

2nd Aug 2025625 AMAQI
2nd Aug 2025626 AMAQI
2nd Aug 2025627 AMAQI
2nd Aug 2025708 AMAQI
2nd Aug 2025699 AMAQI
2nd Aug 20256910 AMAQI
2nd Aug 20256611 AMAQI
2nd Aug 20255912 PMAQI
2nd Aug 2025631 PMAQI
2nd Aug 2025572 PMAQI
2nd Aug 2025613 PMAQI
2nd Aug 2025654 PMAQI
2nd Aug 2025635 PMAQI
2nd Aug 2025676 PMAQI
2nd Aug 2025667 PMAQI
2nd Aug 2025648 PMAQI
2nd Aug 2025639 PMAQI
2nd Aug 20256410 PMAQI
2nd Aug 20256211 PMAQI
3rd Aug 20256212 AMAQI
3rd Aug 2025591 AMAQI
3rd Aug 2025592 AMAQI
3rd Aug 2025623 AMAQI
3rd Aug 2025624 AMAQI

31°C25/37°C

3rd Aug 2025615 AMAQI
3rd Aug 2025626 AMAQI
3rd Aug 2025627 AMAQI
3rd Aug 2025598 AMAQI
3rd Aug 2025629 AMAQI
3rd Aug 20256210 AMAQI
3rd Aug 20256211 AMAQI
3rd Aug 20256312 PMAQI
3rd Aug 2025651 PMAQI
3rd Aug 2025672 PMAQI
3rd Aug 2025673 PMAQI
3rd Aug 2025694 PMAQI
3rd Aug 2025685 PMAQI
3rd Aug 2025746 PMAQI
3rd Aug 2025677 PMAQI
3rd Aug 2025668 PMAQI
3rd Aug 2025659 PMAQI
3rd Aug 20256510 PMAQI
3rd Aug 20256311 PMAQI
4th Aug 20256312 AMAQI
4th Aug 2025601 AMAQI
4th Aug 2025602 AMAQI
4th Aug 2025603 AMAQI
4th Aug 2025604 AMAQI

31°C26/39°C

4th Aug 2025605 AMAQI
4th Aug 2025606 AMAQI
4th Aug 2025607 AMAQI
4th Aug 2025688 AMAQI
4th Aug 2025649 AMAQI
4th Aug 20256610 AMAQI
4th Aug 20256111 AMAQI
4th Aug 20256112 PMAQI
4th Aug 2025601 PMAQI
4th Aug 2025562 PMAQI
4th Aug 2025633 PMAQI
4th Aug 2025554 PMAQI
4th Aug 2025625 PMAQI
4th Aug 2025626 PMAQI
4th Aug 2025607 PMAQI
4th Aug 2025628 PMAQI
4th Aug 2025629 PMAQI
4th Aug 20256210 PMAQI
4th Aug 20256311 PMAQI
5th Aug 20256212 AMAQI
5th Aug 2025601 AMAQI
5th Aug 2025592 AMAQI
5th Aug 2025593 AMAQI
5th Aug 2025604 AMAQI

28°C26/31°C

5th Aug 2025605 AMAQI
5th Aug 2025606 AMAQI
5th Aug 2025617 AMAQI
5th Aug 2025728 AMAQI
5th Aug 2025759 AMAQI
5th Aug 20257610 AMAQI
5th Aug 20256911 AMAQI
5th Aug 20256812 PMAQI
5th Aug 2025601 PMAQI
5th Aug 2025602 PMAQI
5th Aug 2025663 PMAQI
5th Aug 2025634 PMAQI
5th Aug 2025635 PMAQI
5th Aug 2025596 PMAQI
5th Aug 2025597 PMAQI
5th Aug 2025598 PMAQI
5th Aug 2025609 PMAQI
5th Aug 20256210 PMAQI
5th Aug 20256211 PMAQI
6th Aug 20255912 AMAQI
6th Aug 2025571 AMAQI
6th Aug 2025592 AMAQI
6th Aug 2025613 AMAQI
6th Aug 2025634 AMAQI

30°C25/37°C

6th Aug 2025625 AMAQI
6th Aug 2025626 AMAQI
6th Aug 2025627 AMAQI
6th Aug 2025778 AMAQI
6th Aug 2025769 AMAQI
6th Aug 20258310 AMAQI
6th Aug 20258011 AMAQI
6th Aug 20259212 PMAQI
6th Aug 2025811 PMAQI
6th Aug 2025712 PMAQI
6th Aug 2025723 PMAQI
6th Aug 2025694 PMAQI
6th Aug 2025665 PMAQI
6th Aug 2025686 PMAQI
6th Aug 2025707 PMAQI
6th Aug 2025718 PMAQI
6th Aug 2025729 PMAQI
6th Aug 20257210 PMAQI
6th Aug 20257011 PMAQI
7th Aug 20257312 AMAQI
7th Aug 2025611 AMAQI
7th Aug 2025602 AMAQI
7th Aug 2025633 AMAQI
7th Aug 2025654 AMAQI

32°C26/40°C

7th Aug 2025655 AMAQI
7th Aug 2025626 AMAQI
7th Aug 2025657 AMAQI
7th Aug 2025968 AMAQI
7th Aug 2025899 AMAQI
7th Aug 20259110 AMAQI
7th Aug 20258311 AMAQI
7th Aug 20257712 PMAQI
7th Aug 2025661 PMAQI
7th Aug 2025712 PMAQI
7th Aug 2025673 PMAQI
7th Aug 2025754 PMAQI
7th Aug 2025715 PMAQI
7th Aug 2025686 PMAQI
7th Aug 2025707 PMAQI
7th Aug 2025718 PMAQI
7th Aug 2025709 PMAQI
7th Aug 20257210 PMAQI
7th Aug 20257311 PMAQI
8th Aug 20256712 AMAQI
8th Aug 2025641 AMAQI
8th Aug 2025642 AMAQI
8th Aug 2025663 AMAQI
8th Aug 2025674 AMAQI

32°C27/38°C

8th Aug 2025675 AMAQI
8th Aug 2025686 AMAQI
8th Aug 2025687 AMAQI
8th Aug 2025668 AMAQI
8th Aug 2025699 AMAQI
8th Aug 20257110 AMAQI
8th Aug 20256611 AMAQI
8th Aug 20256212 PMAQI
8th Aug 2025631 PMAQI
8th Aug 2025642 PMAQI
8th Aug 2025643 PMAQI
8th Aug 2025604 PMAQI
8th Aug 2025585 PMAQI
8th Aug 2025596 PMAQI
8th Aug 2025607 PMAQI
8th Aug 2025638 PMAQI
8th Aug 2025619 PMAQI
8th Aug 20256310 PMAQI
8th Aug 20256411 PMAQI
9th Aug 20256412 AMAQI
9th Aug 2025661 AMAQI
9th Aug 2025672 AMAQI
9th Aug 2025673 AMAQI
9th Aug 2025674 AMAQI

25°C21/27°C

9th Aug 2025665 AMAQI
9th Aug 2025666 AMAQI
9th Aug 2025667 AMAQI
9th Aug 2025608 AMAQI
9th Aug 2025569 AMAQI
9th Aug 20255410 AMAQI
9th Aug 20255211 AMAQI
9th Aug 20255312 PMAQI
9th Aug 2025571 PMAQI
9th Aug 2025542 PMAQI
9th Aug 2025513 PMAQI
9th Aug 2025534 PMAQI
9th Aug 2025525 PMAQI
9th Aug 2025546 PMAQI
9th Aug 2025597 PMAQI
9th Aug 2025618 PMAQI
9th Aug 2025659 PMAQI
9th Aug 20256410 PMAQI
9th Aug 20256711 PMAQI
10th Aug 20256712 AMAQI
10th Aug 2025661 AMAQI
10th Aug 2025662 AMAQI
10th Aug 2025653 AMAQI
10th Aug 2025634 AMAQI

26°C20/33°C

10th Aug 2025635 AMAQI
10th Aug 2025636 AMAQI
10th Aug 2025637 AMAQI
10th Aug 2025658 AMAQI
10th Aug 2025689 AMAQI
10th Aug 20256710 AMAQI
10th Aug 20256511 AMAQI
10th Aug 20256012 PMAQI
10th Aug 2025571 PMAQI
10th Aug 2025572 PMAQI
10th Aug 2025543 PMAQI
10th Aug 2025564 PMAQI
10th Aug 2025595 PMAQI
10th Aug 2025586 PMAQI
10th Aug 2025607 PMAQI
10th Aug 2025648 PMAQI
10th Aug 2025649 PMAQI
10th Aug 20256510 PMAQI
10th Aug 20256411 PMAQI
11th Aug 20256512 AMAQI
11th Aug 2025641 AMAQI
11th Aug 2025632 AMAQI
11th Aug 2025643 AMAQI
11th Aug 2025634 AMAQI

28°C22/35°C

11th Aug 2025635 AMAQI
11th Aug 2025636 AMAQI
11th Aug 2025637 AMAQI
11th Aug 2025768 AMAQI
11th Aug 2025779 AMAQI
11th Aug 20256910 AMAQI
11th Aug 20257211 AMAQI
11th Aug 20256712 PMAQI
11th Aug 2025641 PMAQI
11th Aug 2025612 PMAQI
11th Aug 2025603 PMAQI
11th Aug 2025614 PMAQI
11th Aug 2025625 PMAQI
11th Aug 2025636 PMAQI
11th Aug 2025647 PMAQI
11th Aug 2025648 PMAQI
11th Aug 2025669 PMAQI
11th Aug 20256710 PMAQI
11th Aug 20256611 PMAQI
12th Aug 20256512 AMAQI
12th Aug 2025621 AMAQI
12th Aug 2025612 AMAQI
12th Aug 2025623 AMAQI
12th Aug 2025634 AMAQI

29°C23/35°C

12th Aug 2025635 AMAQI
12th Aug 2025646 AMAQI
12th Aug 2025647 AMAQI
12th Aug 2025848 AMAQI
12th Aug 2025799 AMAQI
12th Aug 20256510 AMAQI
12th Aug 20256811 AMAQI
12th Aug 20256912 PMAQI
12th Aug 2025681 PMAQI
12th Aug 2025772 PMAQI
12th Aug 2025723 PMAQI
12th Aug 2025674 PMAQI
12th Aug 2025665 PMAQI
12th Aug 2025666 PMAQI
12th Aug 2025647 PMAQI
12th Aug 2025638 PMAQI
12th Aug 2025639 PMAQI
12th Aug 20256310 PMAQI
12th Aug 20256211 PMAQI
13th Aug 20256212 AMAQI
13th Aug 2025611 AMAQI
13th Aug 2025622 AMAQI
13th Aug 2025653 AMAQI
13th Aug 2025664 AMAQI

28°C21/36°C

13th Aug 2025675 AMAQI
13th Aug 2025666 AMAQI
13th Aug 2025667 AMAQI
13th Aug 2025658 AMAQI
13th Aug 2025649 AMAQI
13th Aug 20256710 AMAQI
13th Aug 20256111 AMAQI
13th Aug 20256312 PMAQI
13th Aug 2025581 PMAQI
13th Aug 2025622 PMAQI
13th Aug 2025603 PMAQI
13th Aug 2025584 PMAQI
13th Aug 2025605 PMAQI
13th Aug 2025656 PMAQI
13th Aug 2025657 PMAQI
13th Aug 2025618 PMAQI
13th Aug 2025639 PMAQI
13th Aug 20256510 PMAQI
13th Aug 20256511 PMAQI
14th Aug 20256512 AMAQI
14th Aug 2025641 AMAQI
14th Aug 2025642 AMAQI
14th Aug 2025633 AMAQI
14th Aug 2025644 AMAQI

26°C21/32°C

14th Aug 2025635 AMAQI
14th Aug 2025636 AMAQI
14th Aug 2025637 AMAQI
14th Aug 2025788 AMAQI
14th Aug 2025889 AMAQI
14th Aug 20257910 AMAQI
14th Aug 20258111 AMAQI
14th Aug 20257512 PMAQI
14th Aug 2025781 PMAQI
14th Aug 2025732 PMAQI
14th Aug 2025813 PMAQI
14th Aug 2025744 PMAQI
14th Aug 2025735 PMAQI
14th Aug 2025676 PMAQI
14th Aug 2025727 PMAQI
14th Aug 2025668 PMAQI
14th Aug 2025699 PMAQI
14th Aug 20256710 PMAQI
14th Aug 20256811 PMAQI
15th Aug 20256512 AMAQI
15th Aug 2025641 AMAQI
15th Aug 2025632 AMAQI
15th Aug 2025653 AMAQI
15th Aug 2025664 AMAQI

29°C23/36°C

15th Aug 2025675 AMAQI
15th Aug 2025686 AMAQI
15th Aug 2025677 AMAQI
15th Aug 2025768 AMAQI
15th Aug 2025759 AMAQI
15th Aug 20257910 AMAQI
15th Aug 20258711 AMAQI
15th Aug 20257912 PMAQI
15th Aug 2025741 PMAQI
15th Aug 2025722 PMAQI
15th Aug 2025673 PMAQI
15th Aug 2025694 PMAQI
15th Aug 2025665 PMAQI
15th Aug 2025696 PMAQI
15th Aug 2025647 PMAQI
15th Aug 2025608 PMAQI
15th Aug 2025579 PMAQI
15th Aug 20255910 PMAQI
15th Aug 20255611 PMAQI
16th Aug 20255812 AMAQI
16th Aug 2025621 AMAQI
16th Aug 2025642 AMAQI
16th Aug 2025683 AMAQI
16th Aug 2025684 AMAQI

26°C23/30°C

16th Aug 2025695 AMAQI
16th Aug 2025696 AMAQI
16th Aug 2025687 AMAQI
16th Aug 2025498 AMAQI
16th Aug 2025419 AMAQI
16th Aug 20253910 AMAQI
16th Aug 20254211 AMAQI
16th Aug 20254412 PMAQI
16th Aug 2025461 PMAQI
16th Aug 2025522 PMAQI
16th Aug 2025523 PMAQI
16th Aug 2025494 PMAQI
16th Aug 2025405 PMAQI
16th Aug 2025426 PMAQI
16th Aug 2025517 PMAQI
16th Aug 2025578 PMAQI
16th Aug 2025589 PMAQI
16th Aug 20256010 PMAQI
16th Aug 20255811 PMAQI
17th Aug 20255912 AMAQI
17th Aug 2025631 AMAQI
17th Aug 2025642 AMAQI
17th Aug 2025623 AMAQI
17th Aug 2025614 AMAQI

23°C22/25°C

17th Aug 2025625 AMAQI
17th Aug 2025626 AMAQI
17th Aug 2025627 AMAQI
17th Aug 2025608 AMAQI
17th Aug 2025629 AMAQI
17th Aug 20255710 AMAQI
17th Aug 20256011 AMAQI
17th Aug 20255612 PMAQI
17th Aug 2025561 PMAQI
17th Aug 2025542 PMAQI
17th Aug 2025553 PMAQI
17th Aug 2025544 PMAQI
17th Aug 2025565 PMAQI
17th Aug 2025586 PMAQI
17th Aug 2025587 PMAQI
17th Aug 2025598 PMAQI
17th Aug 2025609 PMAQI
17th Aug 20256210 PMAQI
17th Aug 20256111 PMAQI
18th Aug 20256012 AMAQI
18th Aug 2025611 AMAQI
18th Aug 2025612 AMAQI
18th Aug 2025613 AMAQI
18th Aug 2025614 AMAQI

26°C22/30°C

18th Aug 2025605 AMAQI
18th Aug 2025616 AMAQI
18th Aug 2025607 AMAQI
18th Aug 2025698 AMAQI
18th Aug 2025649 AMAQI
18th Aug 20256810 AMAQI
18th Aug 20256511 AMAQI
18th Aug 20256412 PMAQI
18th Aug 2025581 PMAQI
18th Aug 2025592 PMAQI
18th Aug 2025603 PMAQI
18th Aug 2025564 PMAQI
18th Aug 2025585 PMAQI
18th Aug 2025606 PMAQI
18th Aug 2025607 PMAQI
18th Aug 2025638 PMAQI
18th Aug 2025669 PMAQI
18th Aug 20256710 PMAQI
18th Aug 20256711 PMAQI
19th Aug 20256312 AMAQI
19th Aug 2025611 AMAQI
19th Aug 2025602 AMAQI
19th Aug 2025603 AMAQI
19th Aug 2025624 AMAQI

28°C23/33°C

19th Aug 2025615 AMAQI
19th Aug 2025616 AMAQI
19th Aug 2025617 AMAQI
19th Aug 2025668 AMAQI
19th Aug 2025669 AMAQI
19th Aug 20256810 AMAQI
19th Aug 20256311 AMAQI
19th Aug 20256312 PMAQI
19th Aug 2025631 PMAQI
19th Aug 2025642 PMAQI
19th Aug 2025773 PMAQI
19th Aug 2025634 PMAQI
19th Aug 2025635 PMAQI
19th Aug 2025656 PMAQI
19th Aug 2025597 PMAQI
19th Aug 2025598 PMAQI
19th Aug 2025589 PMAQI
19th Aug 20255910 PMAQI
19th Aug 20255811 PMAQI
20th Aug 20255912 AMAQI
20th Aug 2025601 AMAQI
20th Aug 2025602 AMAQI
20th Aug 2025623 AMAQI
20th Aug 2025624 AMAQI

28°C25/34°C

20th Aug 2025625 AMAQI
20th Aug 2025626 AMAQI
20th Aug 2025637 AMAQI
20th Aug 2025568 AMAQI
20th Aug 2025579 AMAQI
20th Aug 20255810 AMAQI
20th Aug 20256111 AMAQI
20th Aug 20256112 PMAQI
20th Aug 2025591 PMAQI
20th Aug 2025592 PMAQI
20th Aug 2025623 PMAQI
20th Aug 2025594 PMAQI
20th Aug 2025645 PMAQI
20th Aug 2025616 PMAQI
20th Aug 2025637 PMAQI
20th Aug 2025638 PMAQI
20th Aug 2025629 PMAQI
20th Aug 20256310 PMAQI
20th Aug 20256211 PMAQI
21st Aug 20256012 AMAQI
21st Aug 2025611 AMAQI
21st Aug 2025612 AMAQI
21st Aug 2025603 AMAQI
21st Aug 2025614 AMAQI

26°C23/30°C

21st Aug 2025615 AMAQI
5 AM
21st Aug 2025616 AMAQI
21st Aug 2025617 AMAQI
21st Aug 2025608 AMAQI
21st Aug 2025639 AMAQI
21st Aug 20255910 AMAQI
21st Aug 20255811 AMAQI
12 PM
7 PM
12 AM
4 AM

--°C/°C

Day time
Avg. Highest Time
8 AM - 7 PM

64AQI

12 hours / Day
360 hours / Month
Avg. Lowest Time
5 AM - 7 PM

64AQI

15 hours / Day
450 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 8 AM to 7 PM (Avg. 64), while the lowest AQI was between 5 AM to 7 PM (Avg. 64).
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

Hejian, Hebei, China

2025

0.4%

1

70%

162

26%

61

3%

7

0.4%

1

Total number of days with different AQI categories in last 233 days in 2025 (132 days remaining)

Good
1 Days
Moderate
162 Days
Poor
61 Days
Unhealthy
7 Days
Severe
1 Days
Hazardous
0 Days



Under WHO’s Safe Air Quality Limits: 0.43%

Health Risk Level:

Extreme

In 2025, 0.43% of 233 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

Hejian, 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
143AQI
2nd January 2025
94AQI
3rd January 2025
126AQI
4th January 2025
143AQI
5th January 2025
128AQI
6th January 2025
85AQI
7th January 2025
81AQI
8th January 2025
60AQI
9th January 2025
65AQI
10th January 2025
88AQI
11th January 2025
118AQI
12th January 2025
92AQI
13th January 2025
138AQI
14th January 2025
84AQI
15th January 2025
92AQI
16th January 2025
89AQI
17th January 2025
116AQI
18th January 2025
145AQI
19th January 2025
114AQI
20th January 2025
151AQI
21st January 2025
141AQI
22nd January 2025
108AQI
23rd January 2025
130AQI
24th January 2025
138AQI
25th January 2025
148AQI
26th January 2025
126AQI
27th January 2025
83AQI
28th January 2025
108AQI
29th January 2025
204AQI
30th January 2025
118AQI
31st January 2025
149AQI
1st February 2025
128AQI
2nd February 2025
145AQI
3rd February 2025
79AQI
4th February 2025
81AQI
5th February 2025
63AQI
6th February 2025
94AQI
7th February 2025
49AQI
8th February 2025
60AQI
9th February 2025
86AQI
10th February 2025
124AQI
11th February 2025
144AQI
12th February 2025
95AQI
13th February 2025
132AQI
14th February 2025
130AQI
15th February 2025
142AQI
16th February 2025
84AQI
17th February 2025
82AQI
18th February 2025
89AQI
19th February 2025
93AQI
20th February 2025
105AQI
21st February 2025
95AQI
22nd February 2025
104AQI
23rd February 2025
65AQI
24th February 2025
95AQI
25th February 2025
97AQI
26th February 2025
130AQI
27th February 2025
149AQI
28th February 2025
170AQI
1st March 2025
186AQI
2nd March 2025
130AQI
3rd March 2025
101AQI
4th March 2025
96AQI
5th March 2025
129AQI
6th March 2025
83AQI
7th March 2025
145AQI
8th March 2025
140AQI
9th March 2025
159AQI
10th March 2025
164AQI
11th March 2025
172AQI
12th March 2025
140AQI
13th March 2025
157AQI
14th March 2025
121AQI
15th March 2025
103AQI
16th March 2025
76AQI
17th March 2025
75AQI
18th March 2025
64AQI
19th March 2025
77AQI
20th March 2025
60AQI
21st March 2025
67AQI
22nd March 2025
70AQI
23rd March 2025
114AQI
24th March 2025
90AQI
25th March 2025
87AQI
26th March 2025
108AQI
27th March 2025
86AQI
28th March 2025
89AQI
29th March 2025
66AQI
30th March 2025
85AQI
31st March 2025
94AQI
1st April 2025
89AQI
2nd April 2025
70AQI
3rd April 2025
93AQI
4th April 2025
117AQI
5th April 2025
69AQI
6th April 2025
111AQI
7th April 2025
115AQI
8th April 2025
106AQI
9th April 2025
106AQI
10th April 2025
116AQI
11th April 2025
134AQI
12th April 2025
102AQI
13th April 2025
85AQI
14th April 2025
77AQI
15th April 2025
79AQI
16th April 2025
109AQI
17th April 2025
116AQI
18th April 2025
82AQI
19th April 2025
96AQI
20th April 2025
104AQI
21st April 2025
109AQI
22nd April 2025
82AQI
23rd April 2025
102AQI
24th April 2025
68AQI
25th April 2025
93AQI
26th April 2025
100AQI
27th April 2025
80AQI
28th April 2025
85AQI
29th April 2025
83AQI
30th April 2025
90AQI
1st May 2025
71AQI
2nd May 2025
88AQI
3rd May 2025
61AQI
4th May 2025
78AQI
5th May 2025
88AQI
6th May 2025
79AQI
7th May 2025
104AQI
8th May 2025
104AQI
9th May 2025
77AQI
10th May 2025
81AQI
11th May 2025
77AQI
12th May 2025
83AQI
13th May 2025
94AQI
14th May 2025
76AQI
15th May 2025
73AQI
16th May 2025
114AQI
17th May 2025
75AQI
18th May 2025
94AQI
19th May 2025
101AQI
20th May 2025
109AQI
21st May 2025
100AQI
22nd May 2025
121AQI
23rd May 2025
117AQI
24th May 2025
91AQI
25th May 2025
89AQI
26th May 2025
90AQI
27th May 2025
94AQI
28th May 2025
102AQI
29th May 2025
97AQI
30th May 2025
98AQI
31st May 2025
98AQI
1st June 2025
112AQI
2nd June 2025
93AQI
3rd June 2025
64AQI
4th June 2025
63AQI
5th June 2025
75AQI
6th June 2025
84AQI
7th June 2025
82AQI
8th June 2025
87AQI
9th June 2025
90AQI
10th June 2025
72AQI
11th June 2025
83AQI
12th June 2025
86AQI
13th June 2025
91AQI
14th June 2025
88AQI
15th June 2025
70AQI
16th June 2025
59AQI
17th June 2025
66AQI
18th June 2025
73AQI
19th June 2025
64AQI
20th June 2025
67AQI
21st June 2025
65AQI
22nd June 2025
54AQI
23rd June 2025
63AQI
24th June 2025
64AQI
25th June 2025
73AQI
26th June 2025
74AQI
27th June 2025
82AQI
28th June 2025
82AQI
29th June 2025
78AQI
30th June 2025
74AQI
1st July 2025
65AQI
2nd July 2025
67AQI
3rd July 2025
60AQI
4th July 2025
64AQI
5th July 2025
60AQI
6th July 2025
57AQI
7th July 2025
60AQI
8th July 2025
62AQI
9th July 2025
67AQI
10th July 2025
77AQI
11th July 2025
77AQI
12th July 2025
76AQI
13th July 2025
70AQI
14th July 2025
65AQI
15th July 2025
71AQI
16th July 2025
68AQI
17th July 2025
65AQI
18th July 2025
65AQI
19th July 2025
68AQI
20th July 2025
70AQI
21st July 2025
70AQI
22nd July 2025
65AQI
23rd July 2025
62AQI
24th July 2025
64AQI
25th July 2025
67AQI
26th July 2025
65AQI
27th July 2025
62AQI
28th July 2025
66AQI
29th July 2025
57AQI
30th July 2025
61AQI
31st July 2025
59AQI
1st August 2025
64AQI
2nd August 2025
63AQI
3rd August 2025
64AQI
4th August 2025
62AQI
5th August 2025
63AQI
6th August 2025
68AQI
7th August 2025
71AQI
8th August 2025
64AQI
9th August 2025
61AQI
10th August 2025
63AQI
11th August 2025
65AQI
12th August 2025
66AQI
13th August 2025
63AQI
14th August 2025
69AQI
15th August 2025
67AQI
16th August 2025
55AQI
17th August 2025
59AQI
18th August 2025
62AQI
19th August 2025
62AQI
20th August 2025
60AQI

116AQI

104AQI

108AQI

96AQI

91AQI

76AQI

66AQI

64AQI


No. of days

Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days

202591AQI

11
18
1
1
1
15
11
1
16
10
5
17
13
23
8
29
1
31
20
1
162
61
7
1

Highest AQI recorded in

January

116AQI


Lowest AQI recorded in

August

64AQI


202485AQI

31
29
31
28
2
29
30
31
31
3
18
8
3
6
11
11
12
13
5
15
15
1
8
291
47
17

Highest AQI recorded in

October

124AQI


Lowest AQI recorded in

August

65AQI


2023101AQI

1
9
10
7
1
9
11
8
3
7
3
3
31
1
55
28
18
1

Highest AQI recorded in

March

129AQI


Lowest AQI recorded in

December

59AQI


2022100AQI

6
14
11
11
7
4
2
11
14
4
1
18
9
2
27
4
2
21
7
7
16
1
2
3
2
15
12
5
11
13
2
3
9
8
7
3
2
13
9
3
4
26
161
98
33
7

Highest AQI recorded in

January

135AQI


Lowest AQI recorded in

August

61AQI


2021111AQI

8
11
8
4
10
12
4
2
4
7
17
1
2
12
12
1
1
1
17
10
1
2
13
16
1
9
16
6
20
11
2
17
10
1
4
13
8
6
5
6
11
7
1
1
12
9
8
1
22
148
123
53
12
3

Highest AQI recorded in

March

163AQI


Lowest AQI recorded in

July

64AQI


2020115AQI

1
5
6
1
8
11
2
10
6
2
11
17
2
5
24
2
17
14
2
13
11
3
11
12
8
9
14
5
2
7
8
14
2
3
96
123
39
4

Highest AQI recorded in

December

144AQI


Lowest AQI recorded in

May

99AQI


Most & Least Polluted Years Over the Last 6 Years

Most Polluted Year Recorded
2020(Avg.)
115AQI
Least Polluted Year Recorded
2024(Avg.)
85AQI


Hejian's annual 2025 AQI (91) shows an average percentage change of -10.1% (improved AQI) compared to previous years: 2020 (115), 2021 (111), 2022 (100), 2023 (101), 2024 (85).