Country Background
HistoryAQIPM2.5PM10COSO2NO2O3

Leidazhanzi Station, Tangshan, 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

Leidazhanzi Station, Tangshan, Hebei, China

2021
2022
2023
2024
2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
19th Aug 2023
150AQI
Lowest AQI recorded on
9th Aug 2021
32AQI

Same Day Analysis (2nd August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 61 of Moderate air quality, showing improvement over 2024 and 2023 on the same day.

Download 2024 Annual Data

World Air Quality Report

Globe

Day & Night AQI Trend: 3rd Aug - 4th Aug 2025

Leidazhanzi Station, Tangshan, Hebei, China

AQI
Day
Night
.

4 AM3rd Aug 2025

7 PM

3 AM4th Aug 2025

Day time
Avg. Highest Time
12AMNaNth undefined

AQI

Avg. Lowest Time
12AMNaNth undefined

AQI

Night time
Avg. Highest Time
6PM3rd Aug

73AQI

Avg. Lowest Time
8AM3rd Aug

56AQI

In the last 24 hours,

Leidazhanzi Station's AQI reached its highest point of 73 at 6 PM during the Night, while the lowest point, 56, was recorded at 8 AM during the Night between 3rd Aug and 4th Aug 2025.

Day & Night AQI Trend : Jul - Aug 2025

Leidazhanzi Station, Tangshan, 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 2025684 AMAQI
5th Jul 2025695 AMAQI
5th Jul 2025686 AMAQI
5th Jul 2025707 AMAQI
5th Jul 2025978 AMAQI
5th Jul 2025969 AMAQI
5th Jul 20259010 AMAQI
5th Jul 20258911 AMAQI
5th Jul 20258312 PMAQI
5th Jul 2025861 PMAQI
5th Jul 2025782 PMAQI
5th Jul 2025743 PMAQI
5th Jul 2025724 PMAQI
5th Jul 2025725 PMAQI
5th Jul 2025736 PMAQI
5th Jul 2025707 PMAQI
5th Jul 2025648 PMAQI
5th Jul 2025639 PMAQI
5th Jul 20256410 PMAQI
5th Jul 20256411 PMAQI
6th Jul 20256412 AMAQI
6th Jul 2025681 AMAQI
6th Jul 2025682 AMAQI
6th Jul 2025683 AMAQI

31°C26/36°C

6th Jul 2025684 AMAQI
6th Jul 2025695 AMAQI
6th Jul 2025696 AMAQI
6th Jul 2025697 AMAQI
6th Jul 2025648 AMAQI
6th Jul 2025519 AMAQI
6th Jul 20255210 AMAQI
6th Jul 20255611 AMAQI
6th Jul 20255712 PMAQI
6th Jul 2025511 PMAQI
6th Jul 2025502 PMAQI
6th Jul 2025543 PMAQI
6th Jul 2025554 PMAQI
6th Jul 2025565 PMAQI
6th Jul 2025566 PMAQI
6th Jul 2025607 PMAQI
6th Jul 2025658 PMAQI
6th Jul 2025669 PMAQI
6th Jul 20256710 PMAQI
6th Jul 20256811 PMAQI
7th Jul 20256612 AMAQI
7th Jul 2025661 AMAQI
7th Jul 2025672 AMAQI
7th Jul 2025663 AMAQI

30°C26/35°C

7th Jul 2025654 AMAQI
7th Jul 2025655 AMAQI
7th Jul 2025666 AMAQI
7th Jul 2025657 AMAQI
7th Jul 2025708 AMAQI
7th Jul 2025709 AMAQI
7th Jul 20256210 AMAQI
7th Jul 20256611 AMAQI
7th Jul 20256112 PMAQI
7th Jul 2025611 PMAQI
7th Jul 2025602 PMAQI
7th Jul 2025593 PMAQI
7th Jul 2025614 PMAQI
7th Jul 2025605 PMAQI
7th Jul 2025616 PMAQI
7th Jul 2025627 PMAQI
7th Jul 2025648 PMAQI
7th Jul 2025629 PMAQI
7th Jul 20256510 PMAQI
7th Jul 20256511 PMAQI
8th Jul 20256412 AMAQI
8th Jul 2025651 AMAQI
8th Jul 2025652 AMAQI
8th Jul 2025653 AMAQI

29°C24/35°C

8th Jul 2025664 AMAQI
8th Jul 2025655 AMAQI
8th Jul 2025656 AMAQI
8th Jul 2025657 AMAQI
8th Jul 2025728 AMAQI
8th Jul 2025749 AMAQI
8th Jul 20256910 AMAQI
8th Jul 20256311 AMAQI
8th Jul 20255912 PMAQI
8th Jul 2025651 PMAQI
8th Jul 2025622 PMAQI
8th Jul 2025643 PMAQI
8th Jul 2025684 PMAQI
8th Jul 2025705 PMAQI
8th Jul 2025656 PMAQI
8th Jul 2025637 PMAQI
8th Jul 2025648 PMAQI
8th Jul 2025669 PMAQI
8th Jul 20256810 PMAQI
8th Jul 20256911 PMAQI
9th Jul 20257012 AMAQI
9th Jul 2025661 AMAQI
9th Jul 2025642 AMAQI
9th Jul 2025643 AMAQI

28°C23/34°C

9th Jul 2025644 AMAQI
9th Jul 2025645 AMAQI
9th Jul 2025646 AMAQI
9th Jul 2025647 AMAQI
9th Jul 20251008 AMAQI
9th Jul 2025949 AMAQI
9th Jul 20257610 AMAQI
9th Jul 20256211 AMAQI
9th Jul 20256612 PMAQI
9th Jul 2025651 PMAQI
9th Jul 2025592 PMAQI
9th Jul 2025593 PMAQI
9th Jul 2025604 PMAQI
9th Jul 2025645 PMAQI
9th Jul 2025666 PMAQI
9th Jul 2025687 PMAQI
9th Jul 2025678 PMAQI
9th Jul 2025689 PMAQI
9th Jul 20257010 PMAQI
9th Jul 20257511 PMAQI
10th Jul 20257212 AMAQI
10th Jul 2025651 AMAQI
10th Jul 2025652 AMAQI
10th Jul 2025663 AMAQI

29°C24/35°C

10th Jul 2025664 AMAQI
10th Jul 2025665 AMAQI
10th Jul 2025666 AMAQI
10th Jul 2025667 AMAQI
10th Jul 2025898 AMAQI
10th Jul 2025879 AMAQI
10th Jul 20258710 AMAQI
10th Jul 20257611 AMAQI
10th Jul 20257612 PMAQI
10th Jul 2025801 PMAQI
10th Jul 2025782 PMAQI
10th Jul 2025743 PMAQI
10th Jul 2025664 PMAQI
10th Jul 2025705 PMAQI
10th Jul 2025766 PMAQI
10th Jul 2025727 PMAQI
10th Jul 2025668 PMAQI
10th Jul 2025679 PMAQI
10th Jul 20256910 PMAQI
10th Jul 20257111 PMAQI
11th Jul 20257212 AMAQI
11th Jul 2025651 AMAQI
11th Jul 2025662 AMAQI
11th Jul 2025663 AMAQI

31°C26/36°C

11th Jul 2025694 AMAQI
11th Jul 2025685 AMAQI
11th Jul 2025686 AMAQI
11th Jul 2025687 AMAQI
11th Jul 2025948 AMAQI
11th Jul 2025969 AMAQI
11th Jul 20259410 AMAQI
11th Jul 20259211 AMAQI
11th Jul 20258612 PMAQI
11th Jul 2025781 PMAQI
11th Jul 2025802 PMAQI
11th Jul 2025793 PMAQI
11th Jul 2025774 PMAQI
11th Jul 2025845 PMAQI
11th Jul 2025816 PMAQI
11th Jul 2025777 PMAQI
11th Jul 2025728 PMAQI
11th Jul 2025729 PMAQI
11th Jul 20257410 PMAQI
11th Jul 20257311 PMAQI
12th Jul 20257412 AMAQI
12th Jul 2025691 AMAQI
12th Jul 2025682 AMAQI
12th Jul 2025703 AMAQI

29°C24/36°C

12th Jul 2025724 AMAQI
12th Jul 2025725 AMAQI
12th Jul 2025726 AMAQI
12th Jul 2025727 AMAQI
12th Jul 2025898 AMAQI
12th Jul 2025959 AMAQI
12th Jul 20258410 AMAQI
12th Jul 20258411 AMAQI
12th Jul 20258112 PMAQI
12th Jul 2025741 PMAQI
12th Jul 2025792 PMAQI
12th Jul 2025773 PMAQI
12th Jul 2025784 PMAQI
12th Jul 2025815 PMAQI
12th Jul 2025806 PMAQI
12th Jul 2025807 PMAQI
12th Jul 2025768 PMAQI
12th Jul 2025769 PMAQI
12th Jul 20257710 PMAQI
12th Jul 20257411 PMAQI
13th Jul 20257112 AMAQI
13th Jul 2025701 AMAQI
13th Jul 2025702 AMAQI
13th Jul 2025713 AMAQI

30°C24/38°C

13th Jul 2025724 AMAQI
13th Jul 2025725 AMAQI
13th Jul 2025726 AMAQI
13th Jul 2025727 AMAQI
13th Jul 2025678 AMAQI
13th Jul 2025659 AMAQI
13th Jul 20256010 AMAQI
13th Jul 20256111 AMAQI
13th Jul 20256212 PMAQI
13th Jul 2025641 PMAQI
13th Jul 2025642 PMAQI
13th Jul 2025593 PMAQI
13th Jul 2025554 PMAQI
13th Jul 2025565 PMAQI
13th Jul 2025576 PMAQI
13th Jul 2025667 PMAQI
13th Jul 2025718 PMAQI
13th Jul 2025709 PMAQI
13th Jul 20256910 PMAQI
13th Jul 20256711 PMAQI
14th Jul 20256912 AMAQI
14th Jul 2025701 AMAQI
14th Jul 2025702 AMAQI
14th Jul 2025703 AMAQI

30°C23/37°C

14th Jul 2025694 AMAQI
14th Jul 2025715 AMAQI
14th Jul 2025706 AMAQI
14th Jul 2025707 AMAQI
14th Jul 2025688 AMAQI
14th Jul 2025639 AMAQI
14th Jul 20256010 AMAQI
14th Jul 20254711 AMAQI
14th Jul 20255012 PMAQI
14th Jul 2025501 PMAQI
14th Jul 2025522 PMAQI
14th Jul 2025563 PMAQI
14th Jul 2025584 PMAQI
14th Jul 2025585 PMAQI
14th Jul 2025606 PMAQI
14th Jul 2025627 PMAQI
14th Jul 2025668 PMAQI
14th Jul 2025679 PMAQI
14th Jul 20256810 PMAQI
14th Jul 20256711 PMAQI
15th Jul 20256812 AMAQI
15th Jul 2025701 AMAQI
15th Jul 2025702 AMAQI
15th Jul 2025683 AMAQI

30°C24/37°C

15th Jul 2025684 AMAQI
15th Jul 2025685 AMAQI
15th Jul 2025686 AMAQI
15th Jul 2025687 AMAQI
15th Jul 2025628 AMAQI
15th Jul 2025609 AMAQI
15th Jul 20256010 AMAQI
15th Jul 20256311 AMAQI
15th Jul 20256212 PMAQI
15th Jul 2025621 PMAQI
15th Jul 2025652 PMAQI
15th Jul 2025673 PMAQI
15th Jul 2025644 PMAQI
15th Jul 2025675 PMAQI
15th Jul 2025686 PMAQI
15th Jul 2025677 PMAQI
15th Jul 2025708 PMAQI
15th Jul 2025709 PMAQI
15th Jul 20256810 PMAQI
15th Jul 20256811 PMAQI
16th Jul 20257012 AMAQI
16th Jul 2025671 AMAQI
16th Jul 2025682 AMAQI
16th Jul 2025683 AMAQI

25°C20/27°C

16th Jul 2025664 AMAQI
16th Jul 2025665 AMAQI
16th Jul 2025676 AMAQI
16th Jul 2025667 AMAQI
16th Jul 2025688 AMAQI
16th Jul 2025749 AMAQI
16th Jul 20257010 AMAQI
16th Jul 20256711 AMAQI
16th Jul 20256012 PMAQI
16th Jul 2025621 PMAQI
16th Jul 2025592 PMAQI
16th Jul 2025573 PMAQI
16th Jul 2025554 PMAQI
16th Jul 2025565 PMAQI
16th Jul 2025546 PMAQI
16th Jul 2025587 PMAQI
16th Jul 2025638 PMAQI
16th Jul 2025639 PMAQI
16th Jul 20256410 PMAQI
16th Jul 20256411 PMAQI
17th Jul 20256412 AMAQI
17th Jul 2025671 AMAQI
17th Jul 2025672 AMAQI
17th Jul 2025683 AMAQI

25°C20/31°C

17th Jul 2025684 AMAQI
17th Jul 2025685 AMAQI
17th Jul 2025686 AMAQI
17th Jul 2025687 AMAQI
17th Jul 2025648 AMAQI
17th Jul 2025569 AMAQI
17th Jul 20255510 AMAQI
17th Jul 20255011 AMAQI
17th Jul 20255012 PMAQI
17th Jul 2025531 PMAQI
17th Jul 2025482 PMAQI
17th Jul 2025423 PMAQI
17th Jul 2025444 PMAQI
17th Jul 2025395 PMAQI
17th Jul 2025426 PMAQI
17th Jul 2025577 PMAQI
17th Jul 2025648 PMAQI
17th Jul 2025669 PMAQI
17th Jul 20256710 PMAQI
17th Jul 20256711 PMAQI
18th Jul 20256512 AMAQI
18th Jul 2025671 AMAQI
18th Jul 2025662 AMAQI
18th Jul 2025663 AMAQI

28°C22/34°C

18th Jul 2025644 AMAQI
18th Jul 2025635 AMAQI
18th Jul 2025636 AMAQI
18th Jul 2025647 AMAQI
18th Jul 2025848 AMAQI
18th Jul 2025839 AMAQI
18th Jul 20258010 AMAQI
18th Jul 20256311 AMAQI
18th Jul 20256412 PMAQI
18th Jul 2025661 PMAQI
18th Jul 2025642 PMAQI
18th Jul 2025623 PMAQI
18th Jul 2025644 PMAQI
18th Jul 2025665 PMAQI
18th Jul 2025656 PMAQI
18th Jul 2025707 PMAQI
18th Jul 2025688 PMAQI
18th Jul 2025689 PMAQI
18th Jul 20256810 PMAQI
18th Jul 20256611 PMAQI
19th Jul 20256812 AMAQI
19th Jul 2025651 AMAQI
19th Jul 2025652 AMAQI
19th Jul 2025653 AMAQI

29°C24/37°C

19th Jul 2025654 AMAQI
19th Jul 2025665 AMAQI
19th Jul 2025666 AMAQI
19th Jul 2025657 AMAQI
19th Jul 2025788 AMAQI
19th Jul 2025799 AMAQI
19th Jul 20258110 AMAQI
19th Jul 20257811 AMAQI
19th Jul 20257212 PMAQI
19th Jul 2025661 PMAQI
19th Jul 2025682 PMAQI
19th Jul 2025673 PMAQI
19th Jul 2025684 PMAQI
19th Jul 2025685 PMAQI
19th Jul 2025676 PMAQI
19th Jul 2025657 PMAQI
19th Jul 2025688 PMAQI
19th Jul 2025689 PMAQI
19th Jul 20257010 PMAQI
19th Jul 20257011 PMAQI
20th Jul 20256912 AMAQI
20th Jul 2025661 AMAQI
20th Jul 2025662 AMAQI
20th Jul 2025663 AMAQI

28°C23/34°C

20th Jul 2025664 AMAQI
20th Jul 2025675 AMAQI
20th Jul 2025676 AMAQI
20th Jul 2025677 AMAQI
20th Jul 2025738 AMAQI
20th Jul 2025719 AMAQI
20th Jul 20256610 AMAQI
20th Jul 20256111 AMAQI
20th Jul 20255512 PMAQI
20th Jul 2025561 PMAQI
20th Jul 2025642 PMAQI
20th Jul 2025633 PMAQI
20th Jul 2025544 PMAQI
20th Jul 2025545 PMAQI
20th Jul 2025486 PMAQI
20th Jul 2025607 PMAQI
20th Jul 2025668 PMAQI
20th Jul 2025689 PMAQI
20th Jul 20257210 PMAQI
20th Jul 20257111 PMAQI
21st Jul 20256812 AMAQI
21st Jul 2025661 AMAQI
21st Jul 2025662 AMAQI
21st Jul 2025663 AMAQI

24°C22/27°C

21st Jul 2025654 AMAQI
21st Jul 2025665 AMAQI
21st Jul 2025656 AMAQI
21st Jul 2025657 AMAQI
21st Jul 2025728 AMAQI
21st Jul 2025759 AMAQI
21st Jul 20256410 AMAQI
21st Jul 20256011 AMAQI
21st Jul 20255812 PMAQI
21st Jul 2025621 PMAQI
21st Jul 2025562 PMAQI
21st Jul 2025563 PMAQI
21st Jul 2025584 PMAQI
21st Jul 2025575 PMAQI
21st Jul 2025586 PMAQI
21st Jul 2025717 PMAQI
21st Jul 2025688 PMAQI
21st Jul 2025709 PMAQI
21st Jul 20257310 PMAQI
21st Jul 20257611 PMAQI
22nd Jul 20258012 AMAQI
22nd Jul 2025661 AMAQI
22nd Jul 2025662 AMAQI
22nd Jul 2025663 AMAQI

28°C22/36°C

22nd Jul 2025664 AMAQI
22nd Jul 2025665 AMAQI
22nd Jul 2025666 AMAQI
22nd Jul 2025667 AMAQI
22nd Jul 2025988 AMAQI
22nd Jul 20251059 AMAQI
22nd Jul 20259210 AMAQI
22nd Jul 20257811 AMAQI
22nd Jul 20256412 PMAQI
22nd Jul 2025761 PMAQI
22nd Jul 2025682 PMAQI
22nd Jul 2025663 PMAQI
22nd Jul 2025614 PMAQI
22nd Jul 2025685 PMAQI
22nd Jul 2025646 PMAQI
22nd Jul 2025657 PMAQI
22nd Jul 2025648 PMAQI
22nd Jul 2025629 PMAQI
22nd Jul 20256410 PMAQI
22nd Jul 20256111 PMAQI
23rd Jul 20256412 AMAQI
23rd Jul 2025661 AMAQI
23rd Jul 2025672 AMAQI
23rd Jul 2025683 AMAQI

29°C22/35°C

23rd Jul 2025694 AMAQI
23rd Jul 2025695 AMAQI
23rd Jul 2025696 AMAQI
23rd Jul 2025697 AMAQI
23rd Jul 2025648 AMAQI
23rd Jul 2025699 AMAQI
23rd Jul 20256710 AMAQI
23rd Jul 20257611 AMAQI
23rd Jul 20256612 PMAQI
23rd Jul 2025701 PMAQI
23rd Jul 2025722 PMAQI
23rd Jul 2025653 PMAQI
23rd Jul 2025644 PMAQI
23rd Jul 2025595 PMAQI
23rd Jul 2025586 PMAQI
23rd Jul 2025547 PMAQI
23rd Jul 2025618 PMAQI
23rd Jul 2025609 PMAQI
23rd Jul 20255810 PMAQI
23rd Jul 20255811 PMAQI
24th Jul 20255912 AMAQI
24th Jul 2025641 AMAQI
24th Jul 2025652 AMAQI
24th Jul 2025683 AMAQI

29°C24/35°C

24th Jul 2025674 AMAQI
24th Jul 2025675 AMAQI
24th Jul 2025676 AMAQI
24th Jul 2025677 AMAQI
24th Jul 2025598 AMAQI
24th Jul 2025599 AMAQI
24th Jul 20256210 AMAQI
24th Jul 20255911 AMAQI
24th Jul 20256312 PMAQI
24th Jul 2025751 PMAQI
24th Jul 2025762 PMAQI
24th Jul 2025743 PMAQI
24th Jul 2025684 PMAQI
24th Jul 2025625 PMAQI
24th Jul 2025626 PMAQI
24th Jul 2025627 PMAQI
24th Jul 2025648 PMAQI
24th Jul 2025659 PMAQI
24th Jul 20256310 PMAQI
24th Jul 20256411 PMAQI
25th Jul 20256512 AMAQI
25th Jul 2025641 AMAQI
25th Jul 2025652 AMAQI
25th Jul 2025653 AMAQI

28°C24/34°C

25th Jul 2025644 AMAQI
25th Jul 2025655 AMAQI
25th Jul 2025666 AMAQI
25th Jul 2025647 AMAQI
25th Jul 2025688 AMAQI
25th Jul 2025669 AMAQI
25th Jul 20256610 AMAQI
25th Jul 20256811 AMAQI
25th Jul 20257312 PMAQI
25th Jul 2025761 PMAQI
25th Jul 2025842 PMAQI
25th Jul 2025853 PMAQI
25th Jul 2025824 PMAQI
25th Jul 2025905 PMAQI
25th Jul 2025846 PMAQI
25th Jul 2025767 PMAQI
25th Jul 2025688 PMAQI
25th Jul 2025719 PMAQI
25th Jul 20256810 PMAQI
25th Jul 20256811 PMAQI
26th Jul 20256712 AMAQI
26th Jul 2025631 AMAQI
26th Jul 2025622 AMAQI
26th Jul 2025633 AMAQI

29°C25/35°C

26th Jul 2025664 AMAQI
26th Jul 2025665 AMAQI
26th Jul 2025666 AMAQI
26th Jul 2025677 AMAQI
26th Jul 2025838 AMAQI
26th Jul 2025869 AMAQI
26th Jul 20258810 AMAQI
26th Jul 20257911 AMAQI
26th Jul 20257812 PMAQI
26th Jul 2025731 PMAQI
26th Jul 2025762 PMAQI
26th Jul 2025673 PMAQI
26th Jul 2025684 PMAQI
26th Jul 2025705 PMAQI
26th Jul 2025686 PMAQI
26th Jul 2025657 PMAQI
26th Jul 2025638 PMAQI
26th Jul 2025629 PMAQI
26th Jul 20256410 PMAQI
26th Jul 20256511 PMAQI
27th Jul 20256512 AMAQI
27th Jul 2025641 AMAQI
27th Jul 2025642 AMAQI
27th Jul 2025663 AMAQI

30°C24/36°C

27th Jul 2025664 AMAQI
27th Jul 2025665 AMAQI
27th Jul 2025666 AMAQI
27th Jul 2025667 AMAQI
27th Jul 2025708 AMAQI
27th Jul 2025709 AMAQI
27th Jul 20257210 AMAQI
27th Jul 20257211 AMAQI
27th Jul 20257712 PMAQI
27th Jul 2025671 PMAQI
27th Jul 2025732 PMAQI
27th Jul 2025653 PMAQI
27th Jul 2025654 PMAQI
27th Jul 2025605 PMAQI
27th Jul 2025586 PMAQI
27th Jul 2025627 PMAQI
27th Jul 2025628 PMAQI
27th Jul 2025609 PMAQI
27th Jul 20256410 PMAQI
27th Jul 20256511 PMAQI
28th Jul 20256512 AMAQI
28th Jul 2025651 AMAQI
28th Jul 2025642 AMAQI
28th Jul 2025663 AMAQI

30°C25/36°C

28th Jul 2025654 AMAQI
28th Jul 2025665 AMAQI
28th Jul 2025666 AMAQI
28th Jul 2025667 AMAQI
28th Jul 2025728 AMAQI
28th Jul 2025639 AMAQI
28th Jul 20255710 AMAQI
28th Jul 20255411 AMAQI
28th Jul 20255412 PMAQI
28th Jul 2025551 PMAQI
28th Jul 2025562 PMAQI
28th Jul 2025613 PMAQI
28th Jul 2025604 PMAQI
28th Jul 2025625 PMAQI
28th Jul 2025766 PMAQI
28th Jul 2025747 PMAQI
28th Jul 2025708 PMAQI
28th Jul 2025679 PMAQI
28th Jul 20256710 PMAQI
28th Jul 20256611 PMAQI
29th Jul 20256512 AMAQI
29th Jul 2025641 AMAQI
29th Jul 2025632 AMAQI
29th Jul 2025633 AMAQI

29°C25/36°C

29th Jul 2025634 AMAQI
29th Jul 2025635 AMAQI
29th Jul 2025636 AMAQI
29th Jul 2025637 AMAQI
29th Jul 2025558 AMAQI
29th Jul 2025539 AMAQI
29th Jul 20255110 AMAQI
29th Jul 20255011 AMAQI
29th Jul 20255212 PMAQI
29th Jul 2025521 PMAQI
29th Jul 2025462 PMAQI
29th Jul 2025323 PMAQI
29th Jul 2025444 PMAQI
29th Jul 2025505 PMAQI
29th Jul 2025486 PMAQI
29th Jul 2025537 PMAQI
29th Jul 2025598 PMAQI
29th Jul 2025609 PMAQI
29th Jul 20256010 PMAQI
29th Jul 20255811 PMAQI
30th Jul 20256012 AMAQI
30th Jul 2025621 AMAQI
30th Jul 2025632 AMAQI
30th Jul 2025623 AMAQI

25°C23/28°C

30th Jul 2025604 AMAQI
30th Jul 2025605 AMAQI
30th Jul 2025606 AMAQI
30th Jul 2025607 AMAQI
30th Jul 2025628 AMAQI
30th Jul 2025619 AMAQI
30th Jul 20256310 AMAQI
30th Jul 20255811 AMAQI
30th Jul 20255212 PMAQI
30th Jul 2025531 PMAQI
30th Jul 2025512 PMAQI
30th Jul 2025503 PMAQI
30th Jul 2025544 PMAQI
30th Jul 2025585 PMAQI
30th Jul 2025586 PMAQI
30th Jul 2025567 PMAQI
30th Jul 2025588 PMAQI
30th Jul 2025599 PMAQI
30th Jul 20255910 PMAQI
30th Jul 20255711 PMAQI
31st Jul 20255612 AMAQI
31st Jul 2025591 AMAQI
31st Jul 2025602 AMAQI
31st Jul 2025593 AMAQI

27°C22/33°C

31st Jul 2025594 AMAQI
31st Jul 2025595 AMAQI
31st Jul 2025596 AMAQI
31st Jul 2025597 AMAQI
31st Jul 2025598 AMAQI
31st Jul 2025599 AMAQI
31st Jul 20257210 AMAQI
31st Jul 20256611 AMAQI
31st Jul 20256412 PMAQI
31st Jul 2025701 PMAQI
31st Jul 2025662 PMAQI
31st Jul 2025653 PMAQI
31st Jul 2025654 PMAQI
31st Jul 2025665 PMAQI
31st Jul 2025656 PMAQI
31st Jul 2025617 PMAQI
31st Jul 2025628 PMAQI
31st Jul 2025629 PMAQI
31st Jul 20256210 PMAQI
31st Jul 20256611 PMAQI
1st Aug 20256212 AMAQI
1st Aug 2025561 AMAQI
1st Aug 2025562 AMAQI
1st Aug 2025573 AMAQI

27°C22/32°C

1st Aug 2025584 AMAQI
1st Aug 2025585 AMAQI
1st Aug 2025586 AMAQI
1st Aug 2025587 AMAQI
1st Aug 2025738 AMAQI
1st Aug 2025669 AMAQI
1st Aug 20256810 AMAQI
1st Aug 20256211 AMAQI
1st Aug 20255912 PMAQI
1st Aug 2025671 PMAQI
1st Aug 2025672 PMAQI
1st Aug 2025683 PMAQI
1st Aug 2025694 PMAQI
1st Aug 2025755 PMAQI
1st Aug 2025576 PMAQI
1st Aug 2025657 PMAQI
1st Aug 2025658 PMAQI
1st Aug 2025679 PMAQI
1st Aug 20256410 PMAQI
1st Aug 20256711 PMAQI
2nd Aug 20256212 AMAQI
2nd Aug 2025591 AMAQI
2nd Aug 2025582 AMAQI
2nd Aug 2025603 AMAQI

28°C23/35°C

2nd Aug 2025624 AMAQI
2nd Aug 2025615 AMAQI
2nd Aug 2025626 AMAQI
2nd Aug 2025607 AMAQI
2nd Aug 2025668 AMAQI
2nd Aug 2025699 AMAQI
2nd Aug 20256210 AMAQI
2nd Aug 20256111 AMAQI
2nd Aug 20256012 PMAQI
2nd Aug 2025641 PMAQI
2nd Aug 2025622 PMAQI
2nd Aug 2025603 PMAQI
2nd Aug 2025634 PMAQI
2nd Aug 2025645 PMAQI
2nd Aug 2025656 PMAQI
2nd Aug 2025647 PMAQI
2nd Aug 2025648 PMAQI
2nd Aug 2025629 PMAQI
2nd Aug 20256210 PMAQI
2nd Aug 20256111 PMAQI
3rd Aug 20256212 AMAQI
3rd Aug 2025591 AMAQI
3rd Aug 2025592 AMAQI
3rd Aug 2025623 AMAQI

29°C23/36°C

3rd Aug 2025614 AMAQI
3rd Aug 2025615 AMAQI
3rd Aug 2025616 AMAQI
3rd Aug 2025607 AMAQI
3rd Aug 2025568 AMAQI
3rd Aug 2025599 AMAQI
3rd Aug 20256010 AMAQI
3rd Aug 20256111 AMAQI
3rd Aug 20256112 PMAQI
3rd Aug 2025591 PMAQI
3rd Aug 2025602 PMAQI
3rd Aug 2025663 PMAQI
3rd Aug 2025724 PMAQI
3rd Aug 2025725 PMAQI
3rd Aug 2025736 PMAQI
3rd Aug 2025707 PMAQI
3rd Aug 2025708 PMAQI
3rd Aug 2025669 PMAQI
3rd Aug 20256610 PMAQI
3rd Aug 20256111 PMAQI
4th Aug 20256212 AMAQI
4th Aug 2025601 AMAQI
4th Aug 2025602 AMAQI
4th Aug 2025593 AMAQI

--°C/°C

4th Aug 2025594 AMAQI
4 AM
11 AM
7 PM
11 PM
3 AM

--°C/°C

Day time
Avg. Highest Time
8 AM - 10 AM

72AQI

3 hours / Day
90 hours / Month
Avg. Lowest Time
11 AM - 7 PM

64AQI

9 hours / Day
270 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 8 AM to 10 AM (Avg. 72), while the lowest AQI was between 11 AM to 7 PM (Avg. 64).
Night time
Avg. Highest Time
12 AM - 11 PM

66AQI

8 hours / Day
240 hours / Month
Avg. Lowest Time
12 AM - 11 PM

66AQI

8 hours / Day
240 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

Leidazhanzi Station, Tangshan, Hebei, China

2025

0.9%

2

46%

99

50%

108

2%

5

Total number of days with different AQI categories in last 215 days in 2025 (150 days remaining)

Good
2 Days
Moderate
99 Days
Poor
108 Days
Unhealthy
5 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 0.93%

Health Risk Level:

Extreme

In 2025, 0.93% 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

Leidazhanzi Station, Tangshan, 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
83AQI
2nd January 2025
67AQI
3rd January 2025
80AQI
4th January 2025
128AQI
5th January 2025
110AQI
6th January 2025
80AQI
7th January 2025
74AQI
8th January 2025
54AQI
9th January 2025
56AQI
10th January 2025
60AQI
11th January 2025
81AQI
12th January 2025
79AQI
13th January 2025
97AQI
14th January 2025
64AQI
15th January 2025
62AQI
16th January 2025
79AQI
17th January 2025
104AQI
18th January 2025
138AQI
19th January 2025
98AQI
20th January 2025
132AQI
21st January 2025
108AQI
22nd January 2025
112AQI
23rd January 2025
124AQI
24th January 2025
150AQI
25th January 2025
155AQI
26th January 2025
121AQI
27th January 2025
82AQI
28th January 2025
86AQI
29th January 2025
119AQI
30th January 2025
97AQI
31st January 2025
114AQI
1st February 2025
112AQI
2nd February 2025
104AQI
3rd February 2025
71AQI
4th February 2025
64AQI
5th February 2025
58AQI
6th February 2025
62AQI
7th February 2025
43AQI
8th February 2025
48AQI
9th February 2025
56AQI
10th February 2025
110AQI
11th February 2025
131AQI
12th February 2025
76AQI
13th February 2025
120AQI
14th February 2025
119AQI
15th February 2025
119AQI
16th February 2025
75AQI
17th February 2025
72AQI
18th February 2025
81AQI
19th February 2025
73AQI
20th February 2025
74AQI
21st February 2025
62AQI
22nd February 2025
62AQI
23rd February 2025
52AQI
24th February 2025
73AQI
25th February 2025
74AQI
26th February 2025
86AQI
27th February 2025
141AQI
28th February 2025
160AQI
1st March 2025
174AQI
2nd March 2025
105AQI
3rd March 2025
97AQI
4th March 2025
109AQI
5th March 2025
130AQI
6th March 2025
88AQI
7th March 2025
107AQI
8th March 2025
135AQI
9th March 2025
147AQI
10th March 2025
159AQI
11th March 2025
168AQI
12th March 2025
101AQI
13th March 2025
119AQI
14th March 2025
98AQI
15th March 2025
102AQI
16th March 2025
71AQI
17th March 2025
71AQI
18th March 2025
64AQI
19th March 2025
72AQI
20th March 2025
57AQI
21st March 2025
61AQI
22nd March 2025
65AQI
23rd March 2025
102AQI
24th March 2025
73AQI
25th March 2025
98AQI
26th March 2025
136AQI
27th March 2025
113AQI
28th March 2025
119AQI
29th March 2025
100AQI
30th March 2025
109AQI
31st March 2025
119AQI
1st April 2025
116AQI
2nd April 2025
107AQI
3rd April 2025
122AQI
4th April 2025
125AQI
5th April 2025
106AQI
6th April 2025
128AQI
7th April 2025
121AQI
8th April 2025
117AQI
9th April 2025
124AQI
10th April 2025
133AQI
11th April 2025
139AQI
12th April 2025
114AQI
13th April 2025
112AQI
14th April 2025
104AQI
15th April 2025
110AQI
16th April 2025
126AQI
17th April 2025
124AQI
18th April 2025
116AQI
19th April 2025
123AQI
20th April 2025
126AQI
21st April 2025
141AQI
22nd April 2025
104AQI
23rd April 2025
119AQI
24th April 2025
94AQI
25th April 2025
109AQI
26th April 2025
122AQI
27th April 2025
101AQI
28th April 2025
113AQI
29th April 2025
120AQI
30th April 2025
120AQI
1st May 2025
104AQI
2nd May 2025
110AQI
3rd May 2025
97AQI
4th May 2025
104AQI
5th May 2025
109AQI
6th May 2025
103AQI
7th May 2025
120AQI
8th May 2025
120AQI
9th May 2025
97AQI
10th May 2025
104AQI
11th May 2025
125AQI
12th May 2025
121AQI
13th May 2025
129AQI
14th May 2025
118AQI
15th May 2025
123AQI
16th May 2025
138AQI
17th May 2025
114AQI
18th May 2025
112AQI
19th May 2025
123AQI
20th May 2025
136AQI
21st May 2025
132AQI
22nd May 2025
139AQI
23rd May 2025
128AQI
24th May 2025
114AQI
25th May 2025
119AQI
26th May 2025
121AQI
27th May 2025
119AQI
28th May 2025
124AQI
29th May 2025
115AQI
30th May 2025
125AQI
31st May 2025
127AQI
1st June 2025
130AQI
2nd June 2025
122AQI
3rd June 2025
106AQI
4th June 2025
103AQI
5th June 2025
109AQI
6th June 2025
107AQI
7th June 2025
107AQI
8th June 2025
104AQI
9th June 2025
111AQI
10th June 2025
109AQI
11th June 2025
117AQI
12th June 2025
113AQI
13th June 2025
121AQI
14th June 2025
117AQI
15th June 2025
108AQI
16th June 2025
99AQI
17th June 2025
92AQI
18th June 2025
75AQI
19th June 2025
69AQI
20th June 2025
66AQI
21st June 2025
62AQI
22nd June 2025
52AQI
23rd June 2025
65AQI
24th June 2025
74AQI
25th June 2025
71AQI
26th June 2025
77AQI
27th June 2025
73AQI
28th June 2025
77AQI
29th June 2025
85AQI
30th June 2025
79AQI
1st July 2025
72AQI
2nd July 2025
75AQI
3rd July 2025
66AQI
4th July 2025
71AQI
5th July 2025
73AQI
6th July 2025
62AQI
7th July 2025
64AQI
8th July 2025
66AQI
9th July 2025
68AQI
10th July 2025
71AQI
11th July 2025
76AQI
12th July 2025
77AQI
13th July 2025
66AQI
14th July 2025
64AQI
15th July 2025
67AQI
16th July 2025
64AQI
17th July 2025
59AQI
18th July 2025
67AQI
19th July 2025
69AQI
20th July 2025
64AQI
21st July 2025
65AQI
22nd July 2025
69AQI
23rd July 2025
65AQI
24th July 2025
65AQI
25th July 2025
71AQI
26th July 2025
69AQI
27th July 2025
65AQI
28th July 2025
65AQI
29th July 2025
56AQI
30th July 2025
58AQI
31st July 2025
62AQI
1st August 2025
63AQI
2nd August 2025
61AQI

97AQI

85AQI

105AQI

118AQI

118AQI

93AQI

67AQI

62AQI

No. of days

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

202597AQI

18
12
1
2
17
8
1
13
15
3
1
29
2
29
15
15
31
2
2
99
108
5

Highest AQI recorded in

May

118AQI

Lowest AQI recorded in

August

62AQI

2024101AQI

2
12
10
7
2
7
10
7
3
1
8
13
9
13
13
4
1
16
13
1
8
19
3
16
14
1
25
6
5
20
5
5
10
12
4
2
18
6
4
1
25
5
19
178
126
40
3

Highest AQI recorded in

February

124AQI

Lowest AQI recorded in

September

71AQI

2023105AQI

4
9
12
5
1
3
8
8
8
1
2
7
11
7
4
3
11
7
3
3
2
12
16
1
20
10
4
21
6
1
24
6
1
16
11
2
1
15
8
5
2
1
16
7
5
13
8
8
2
22
172
110
44
13

Highest AQI recorded in

March

135AQI

Lowest AQI recorded in

July

79AQI

2022101AQI

2
10
9
8
2
3
6
6
6
1
10
12
8
13
9
6
2
16
13
3
19
6
1
1
20
2
1
2
15
9
2
6
9
9
7
5
8
8
7
2
7
13
9
1
1
32
140
92
46
5

Highest AQI recorded in

January

124AQI

Lowest AQI recorded in

August

53AQI

2021101AQI

7
15
8
1
6
8
11
3
4
10
14
1
2
16
8
6
21
6
2
1
1
22
8
14
15
2
5
25
1
7
21
2
1
20
7
3
3
12
9
6
4
13
7
7
34
182
83
57
6
3

Highest AQI recorded in

March

165AQI

Lowest AQI recorded in

July

54AQI

2020105AQI

1
7
5
2
10
9
8
10
9
21
9
22
1
19
11
4
16
8
2
14
8
9
11
13
6
12
13
6
8
115
120
23

Highest AQI recorded in

December

121AQI

Lowest AQI recorded in

September

84AQI

Most & Least Polluted Years Over the Last 6 Years

Most Polluted Year Recorded
2020(Avg.)
105AQI
Least Polluted Year Recorded
2025(Avg.)
97AQI

Leidazhanzi Station's annual 2025 AQI (97) shows an average percentage change of -5.1% (improved AQI) compared to previous years: 2020 (105), 2021 (101), 2022 (101), 2023 (105), 2024 (101).