North China Institute Of Aerospace, 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
North China Institute Of Aerospace, Langfang, Hebei, China
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
9th Aug 2023
148AQILowest AQI recorded on
26th Aug 2021
23AQISame Day Analysis (3rd August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 4th highest AQI at 61 of Moderate air quality, showing improvement over 2024, 2023 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 4th Aug - 5th Aug 2025
North China Institute Of Aerospace, Langfang, Hebei, China
AQI
Day
Night
.
5 AM4th Aug 2025
7 PM
4 AM5th Aug 2025
Day time
Avg. Highest Time
8AM4th Aug
76AQI
Avg. Lowest Time
2PM4th Aug
58AQI
Night time
Avg. Highest Time
11PM4th Aug
65AQI
Avg. Lowest Time
2AM5th Aug
59AQI
In the last 24 hours,
North China Institute Of Aerospace's AQI reached its highest point of 76 at 8 AM during the Day, while the lowest point, 58, was recorded at 2 PM during the Day between 4th Aug and 5th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
North China Institute Of Aerospace, Langfang, Hebei, China
JulAug
06th - 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 - 05th05th
Day
Night
6th Jul 2025695 AMAQI
6th Jul 2025696 AMAQI
6th Jul 2025707 AMAQI
6th Jul 2025608 AMAQI
6th Jul 2025459 AMAQI
6th Jul 20253110 AMAQI
6th Jul 20253311 AMAQI
6th Jul 20253812 PMAQI
6th Jul 2025391 PMAQI
6th Jul 2025402 PMAQI
6th Jul 2025393 PMAQI
6th Jul 2025424 PMAQI
6th Jul 2025385 PMAQI
6th Jul 2025436 PMAQI
6th Jul 2025477 PMAQI
6th Jul 2025608 PMAQI
6th Jul 2025609 PMAQI
6th Jul 20256210 PMAQI
6th Jul 20256311 PMAQI
7th Jul 20256312 AMAQI
7th Jul 2025661 AMAQI
7th Jul 2025662 AMAQI
7th Jul 2025663 AMAQI
7th Jul 2025634 AMAQI
31°C27/35°C
7th Jul 2025635 AMAQI
7th Jul 2025636 AMAQI
7th Jul 2025637 AMAQI
7th Jul 2025788 AMAQI
7th Jul 2025799 AMAQI
7th Jul 20256510 AMAQI
7th Jul 20256711 AMAQI
7th Jul 20255812 PMAQI
7th Jul 2025591 PMAQI
7th Jul 2025582 PMAQI
7th Jul 2025573 PMAQI
7th Jul 2025544 PMAQI
7th Jul 2025545 PMAQI
7th Jul 2025596 PMAQI
7th Jul 2025587 PMAQI
7th Jul 2025628 PMAQI
7th Jul 2025629 PMAQI
7th Jul 20256310 PMAQI
7th Jul 20256011 PMAQI
8th Jul 20255912 AMAQI
8th Jul 2025621 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 2025618 AMAQI
8th Jul 2025629 AMAQI
8th Jul 20256210 AMAQI
8th Jul 20256811 AMAQI
8th Jul 20257312 PMAQI
8th Jul 2025741 PMAQI
8th Jul 2025782 PMAQI
8th Jul 2025753 PMAQI
8th Jul 2025764 PMAQI
8th Jul 2025725 PMAQI
8th Jul 2025706 PMAQI
8th Jul 2025687 PMAQI
8th Jul 2025668 PMAQI
8th Jul 2025669 PMAQI
8th Jul 20256810 PMAQI
8th Jul 20256711 PMAQI
9th Jul 20256812 AMAQI
9th Jul 2025631 AMAQI
9th Jul 2025632 AMAQI
9th Jul 2025633 AMAQI
9th Jul 2025644 AMAQI
30°C24/36°C
9th Jul 2025645 AMAQI
9th Jul 2025646 AMAQI
9th Jul 2025647 AMAQI
9th Jul 20251208 AMAQI
9th Jul 20251209 AMAQI
9th Jul 202511210 AMAQI
9th Jul 202510211 AMAQI
9th Jul 20259012 PMAQI
9th Jul 2025721 PMAQI
9th Jul 2025642 PMAQI
9th Jul 2025563 PMAQI
9th Jul 2025534 PMAQI
9th Jul 2025565 PMAQI
9th Jul 2025606 PMAQI
9th Jul 2025617 PMAQI
9th Jul 2025628 PMAQI
9th Jul 2025649 PMAQI
9th Jul 20256510 PMAQI
9th Jul 20257011 PMAQI
10th Jul 20257012 AMAQI
10th Jul 2025641 AMAQI
10th Jul 2025642 AMAQI
10th Jul 2025663 AMAQI
10th Jul 2025684 AMAQI
30°C25/36°C
10th Jul 2025685 AMAQI
10th Jul 2025696 AMAQI
10th Jul 2025687 AMAQI
10th Jul 2025708 AMAQI
10th Jul 2025819 AMAQI
10th Jul 20256610 AMAQI
10th Jul 20257211 AMAQI
10th Jul 20258012 PMAQI
10th Jul 2025861 PMAQI
10th Jul 2025832 PMAQI
10th Jul 2025793 PMAQI
10th Jul 2025774 PMAQI
10th Jul 2025765 PMAQI
10th Jul 2025666 PMAQI
10th Jul 2025667 PMAQI
10th Jul 2025668 PMAQI
10th Jul 2025669 PMAQI
10th Jul 20256910 PMAQI
10th Jul 20256711 PMAQI
11th Jul 20256812 AMAQI
11th Jul 2025661 AMAQI
11th Jul 2025662 AMAQI
11th Jul 2025673 AMAQI
11th Jul 2025694 AMAQI
31°C26/38°C
11th Jul 2025685 AMAQI
11th Jul 2025686 AMAQI
11th Jul 2025697 AMAQI
11th Jul 2025938 AMAQI
11th Jul 2025969 AMAQI
11th Jul 20259810 AMAQI
11th Jul 20259911 AMAQI
11th Jul 20258812 PMAQI
11th Jul 2025781 PMAQI
11th Jul 2025752 PMAQI
11th Jul 2025723 PMAQI
11th Jul 2025764 PMAQI
11th Jul 2025825 PMAQI
11th Jul 2025766 PMAQI
11th Jul 2025797 PMAQI
11th Jul 2025758 PMAQI
11th Jul 2025769 PMAQI
11th Jul 20257510 PMAQI
11th Jul 20257111 PMAQI
12th Jul 20257212 AMAQI
12th Jul 2025691 AMAQI
12th Jul 2025682 AMAQI
12th Jul 2025693 AMAQI
12th Jul 2025714 AMAQI
31°C26/38°C
12th Jul 2025715 AMAQI
12th Jul 2025716 AMAQI
12th Jul 2025717 AMAQI
12th Jul 20251118 AMAQI
12th Jul 20251209 AMAQI
12th Jul 20259810 AMAQI
12th Jul 20258411 AMAQI
12th Jul 20257612 PMAQI
12th Jul 2025771 PMAQI
12th Jul 2025772 PMAQI
12th Jul 2025803 PMAQI
12th Jul 2025814 PMAQI
12th Jul 2025805 PMAQI
12th Jul 2025806 PMAQI
12th Jul 2025807 PMAQI
12th Jul 2025718 PMAQI
12th Jul 2025689 PMAQI
12th Jul 20256810 PMAQI
12th Jul 20256711 PMAQI
13th Jul 20256812 AMAQI
13th Jul 2025701 AMAQI
13th Jul 2025702 AMAQI
13th Jul 2025703 AMAQI
13th Jul 2025734 AMAQI
32°C27/39°C
13th Jul 2025725 AMAQI
13th Jul 2025736 AMAQI
13th Jul 2025747 AMAQI
13th Jul 2025628 AMAQI
13th Jul 2025529 AMAQI
13th Jul 20255210 AMAQI
13th Jul 20254911 AMAQI
13th Jul 20255412 PMAQI
13th Jul 2025551 PMAQI
13th Jul 2025612 PMAQI
13th Jul 2025573 PMAQI
13th Jul 2025564 PMAQI
13th Jul 2025575 PMAQI
13th Jul 2025576 PMAQI
13th Jul 2025607 PMAQI
13th Jul 2025648 PMAQI
13th Jul 2025669 PMAQI
13th Jul 20256510 PMAQI
13th Jul 20256611 PMAQI
14th Jul 20256612 AMAQI
14th Jul 2025701 AMAQI
14th Jul 2025702 AMAQI
14th Jul 2025703 AMAQI
14th Jul 2025684 AMAQI
32°C25/39°C
14th Jul 2025685 AMAQI
14th Jul 2025686 AMAQI
14th Jul 2025687 AMAQI
14th Jul 2025608 AMAQI
14th Jul 2025569 AMAQI
14th Jul 20255610 AMAQI
14th Jul 20255411 AMAQI
14th Jul 20255812 PMAQI
14th Jul 2025621 PMAQI
14th Jul 2025592 PMAQI
14th Jul 2025583 PMAQI
14th Jul 2025604 PMAQI
14th Jul 2025615 PMAQI
14th Jul 2025626 PMAQI
14th Jul 2025627 PMAQI
14th Jul 2025668 PMAQI
14th Jul 2025679 PMAQI
14th Jul 20256610 PMAQI
14th Jul 20256811 PMAQI
15th Jul 20256612 AMAQI
15th Jul 2025681 AMAQI
15th Jul 2025682 AMAQI
15th Jul 2025683 AMAQI
15th Jul 2025674 AMAQI
32°C26/37°C
15th Jul 2025675 AMAQI
15th Jul 2025676 AMAQI
15th Jul 2025667 AMAQI
15th Jul 2025628 AMAQI
15th Jul 2025649 AMAQI
15th Jul 20256910 AMAQI
15th Jul 20256411 AMAQI
15th Jul 20256612 PMAQI
15th Jul 2025641 PMAQI
15th Jul 2025702 PMAQI
15th Jul 2025753 PMAQI
15th Jul 2025814 PMAQI
15th Jul 2025775 PMAQI
15th Jul 2025796 PMAQI
15th Jul 2025687 PMAQI
15th Jul 2025678 PMAQI
15th Jul 2025689 PMAQI
15th Jul 20256910 PMAQI
15th Jul 20257211 PMAQI
16th Jul 20258412 AMAQI
16th Jul 2025671 AMAQI
16th Jul 2025682 AMAQI
16th Jul 2025683 AMAQI
16th Jul 2025684 AMAQI
28°C22/33°C
16th Jul 2025675 AMAQI
16th Jul 2025676 AMAQI
16th Jul 2025687 AMAQI
16th Jul 2025748 AMAQI
16th Jul 2025729 AMAQI
16th Jul 20256710 AMAQI
16th Jul 20256411 AMAQI
16th Jul 20256212 PMAQI
16th Jul 2025601 PMAQI
16th Jul 2025592 PMAQI
16th Jul 2025563 PMAQI
16th Jul 2025544 PMAQI
16th Jul 2025515 PMAQI
16th Jul 2025506 PMAQI
16th Jul 2025557 PMAQI
16th Jul 2025638 PMAQI
16th Jul 2025639 PMAQI
16th Jul 20256210 PMAQI
16th Jul 20256311 PMAQI
17th Jul 20256612 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 2025518 AMAQI
17th Jul 2025369 AMAQI
17th Jul 20253210 AMAQI
17th Jul 20253411 AMAQI
17th Jul 20254212 PMAQI
17th Jul 2025431 PMAQI
17th Jul 2025402 PMAQI
17th Jul 2025383 PMAQI
17th Jul 2025404 PMAQI
17th Jul 2025405 PMAQI
17th Jul 2025386 PMAQI
17th Jul 2025437 PMAQI
17th Jul 2025628 PMAQI
17th Jul 2025619 PMAQI
17th Jul 20256210 PMAQI
17th Jul 20256311 PMAQI
18th Jul 20256212 AMAQI
18th Jul 2025661 AMAQI
18th Jul 2025682 AMAQI
18th Jul 2025663 AMAQI
18th Jul 2025644 AMAQI
31°C24/38°C
18th Jul 2025645 AMAQI
18th Jul 2025646 AMAQI
18th Jul 2025647 AMAQI
18th Jul 2025948 AMAQI
18th Jul 20251049 AMAQI
18th Jul 20257510 AMAQI
18th Jul 20256211 AMAQI
18th Jul 20256012 PMAQI
18th Jul 2025621 PMAQI
18th Jul 2025602 PMAQI
18th Jul 2025563 PMAQI
18th Jul 2025574 PMAQI
18th Jul 2025585 PMAQI
18th Jul 2025586 PMAQI
18th Jul 2025587 PMAQI
18th Jul 2025648 PMAQI
18th Jul 2025689 PMAQI
18th Jul 20256810 PMAQI
18th Jul 20256911 PMAQI
19th Jul 20256712 AMAQI
19th Jul 2025651 AMAQI
19th Jul 2025652 AMAQI
19th Jul 2025663 AMAQI
19th Jul 2025674 AMAQI
31°C25/38°C
19th Jul 2025665 AMAQI
19th Jul 2025666 AMAQI
19th Jul 2025667 AMAQI
19th Jul 2025768 AMAQI
19th Jul 2025749 AMAQI
19th Jul 20257210 AMAQI
19th Jul 20257111 AMAQI
19th Jul 20257212 PMAQI
19th Jul 2025681 PMAQI
19th Jul 2025722 PMAQI
19th Jul 2025703 PMAQI
19th Jul 2025684 PMAQI
19th Jul 2025685 PMAQI
19th Jul 2025636 PMAQI
19th Jul 2025627 PMAQI
19th Jul 2025638 PMAQI
19th Jul 2025689 PMAQI
19th Jul 20256910 PMAQI
19th Jul 20256811 PMAQI
20th Jul 20256812 AMAQI
20th Jul 2025661 AMAQI
20th Jul 2025662 AMAQI
20th Jul 2025663 AMAQI
20th Jul 2025674 AMAQI
30°C25/36°C
20th Jul 2025675 AMAQI
20th Jul 2025686 AMAQI
20th Jul 2025677 AMAQI
20th Jul 2025648 AMAQI
20th Jul 2025519 AMAQI
20th Jul 20255010 AMAQI
20th Jul 20255111 AMAQI
20th Jul 20255212 PMAQI
20th Jul 2025501 PMAQI
20th Jul 2025472 PMAQI
20th Jul 2025373 PMAQI
20th Jul 2025454 PMAQI
20th Jul 2025525 PMAQI
20th Jul 2025566 PMAQI
20th Jul 2025577 PMAQI
20th Jul 2025638 PMAQI
20th Jul 2025639 PMAQI
20th Jul 20256610 PMAQI
20th Jul 20256811 PMAQI
21st Jul 20257012 AMAQI
21st Jul 2025671 AMAQI
21st Jul 2025672 AMAQI
21st Jul 2025663 AMAQI
21st Jul 2025654 AMAQI
24°C22/24°C
21st Jul 2025645 AMAQI
21st Jul 2025646 AMAQI
21st Jul 2025647 AMAQI
21st Jul 2025888 AMAQI
21st Jul 2025829 AMAQI
21st Jul 20256010 AMAQI
21st Jul 20255711 AMAQI
21st Jul 20255612 PMAQI
21st Jul 2025571 PMAQI
21st Jul 2025552 PMAQI
21st Jul 2025453 PMAQI
21st Jul 2025444 PMAQI
21st Jul 2025465 PMAQI
21st Jul 2025456 PMAQI
21st Jul 2025487 PMAQI
21st Jul 2025608 PMAQI
21st Jul 2025619 PMAQI
21st Jul 20256010 PMAQI
21st Jul 20256011 PMAQI
22nd Jul 20256112 AMAQI
22nd Jul 2025661 AMAQI
22nd Jul 2025662 AMAQI
22nd Jul 2025663 AMAQI
22nd Jul 2025664 AMAQI
29°C22/36°C
22nd Jul 2025655 AMAQI
22nd Jul 2025666 AMAQI
22nd Jul 2025667 AMAQI
22nd Jul 20251238 AMAQI
22nd Jul 20251249 AMAQI
22nd Jul 20259910 AMAQI
22nd Jul 20257811 AMAQI
22nd Jul 20257412 PMAQI
22nd Jul 2025781 PMAQI
22nd Jul 2025702 PMAQI
22nd Jul 2025643 PMAQI
22nd Jul 2025614 PMAQI
22nd Jul 2025595 PMAQI
22nd Jul 2025606 PMAQI
22nd Jul 2025627 PMAQI
22nd Jul 2025648 PMAQI
22nd Jul 2025669 PMAQI
22nd Jul 20256710 PMAQI
22nd Jul 20256811 PMAQI
23rd Jul 20257612 AMAQI
23rd Jul 2025651 AMAQI
23rd Jul 2025662 AMAQI
23rd Jul 2025673 AMAQI
23rd Jul 2025694 AMAQI
30°C23/37°C
23rd Jul 2025705 AMAQI
23rd Jul 2025696 AMAQI
23rd Jul 2025707 AMAQI
23rd Jul 2025888 AMAQI
23rd Jul 2025909 AMAQI
23rd Jul 20258010 AMAQI
23rd Jul 20256811 AMAQI
23rd Jul 20256612 PMAQI
23rd Jul 2025601 PMAQI
23rd Jul 2025582 PMAQI
23rd Jul 2025623 PMAQI
23rd Jul 2025544 PMAQI
23rd Jul 2025455 PMAQI
23rd Jul 2025526 PMAQI
23rd Jul 2025457 PMAQI
23rd Jul 2025588 PMAQI
23rd Jul 2025589 PMAQI
23rd Jul 20255810 PMAQI
23rd Jul 20256011 PMAQI
24th Jul 20256212 AMAQI
24th Jul 2025651 AMAQI
24th Jul 2025682 AMAQI
24th Jul 2025683 AMAQI
24th Jul 2025684 AMAQI
30°C25/35°C
24th Jul 2025695 AMAQI
24th Jul 2025686 AMAQI
24th Jul 2025687 AMAQI
24th Jul 2025568 AMAQI
24th Jul 2025569 AMAQI
24th Jul 20256310 AMAQI
24th Jul 20256911 AMAQI
24th Jul 20257112 PMAQI
24th Jul 2025721 PMAQI
24th Jul 2025672 PMAQI
24th Jul 2025663 PMAQI
24th Jul 2025584 PMAQI
24th Jul 2025595 PMAQI
24th Jul 2025616 PMAQI
24th Jul 2025547 PMAQI
24th Jul 2025618 PMAQI
24th Jul 2025619 PMAQI
24th Jul 20256210 PMAQI
24th Jul 20256211 PMAQI
25th Jul 20256312 AMAQI
25th Jul 2025651 AMAQI
25th Jul 2025662 AMAQI
25th Jul 2025663 AMAQI
25th Jul 2025664 AMAQI
29°C25/35°C
25th Jul 2025665 AMAQI
25th Jul 2025666 AMAQI
25th Jul 2025667 AMAQI
25th Jul 2025568 AMAQI
25th Jul 2025509 AMAQI
25th Jul 20254710 AMAQI
25th Jul 20255711 AMAQI
25th Jul 20257212 PMAQI
25th Jul 2025761 PMAQI
25th Jul 2025762 PMAQI
25th Jul 2025783 PMAQI
25th Jul 2025764 PMAQI
25th Jul 2025765 PMAQI
25th Jul 2025606 PMAQI
25th Jul 2025607 PMAQI
25th Jul 2025638 PMAQI
25th Jul 2025709 PMAQI
25th Jul 20257010 PMAQI
25th Jul 20256911 PMAQI
26th Jul 20257012 AMAQI
26th Jul 2025641 AMAQI
26th Jul 2025642 AMAQI
26th Jul 2025653 AMAQI
26th Jul 2025644 AMAQI
30°C26/35°C
26th Jul 2025645 AMAQI
26th Jul 2025656 AMAQI
26th Jul 2025657 AMAQI
26th Jul 2025838 AMAQI
26th Jul 2025839 AMAQI
26th Jul 20257510 AMAQI
26th Jul 20256811 AMAQI
26th Jul 20255912 PMAQI
26th Jul 2025581 PMAQI
26th Jul 2025572 PMAQI
26th Jul 2025553 PMAQI
26th Jul 2025604 PMAQI
26th Jul 2025635 PMAQI
26th Jul 2025606 PMAQI
26th Jul 2025587 PMAQI
26th Jul 2025618 PMAQI
26th Jul 2025629 PMAQI
26th Jul 20256110 PMAQI
26th Jul 20256211 PMAQI
27th Jul 20256212 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 2025667 AMAQI
27th Jul 2025828 AMAQI
27th Jul 2025819 AMAQI
27th Jul 20256810 AMAQI
27th Jul 20256611 AMAQI
27th Jul 20256012 PMAQI
27th Jul 2025591 PMAQI
27th Jul 2025542 PMAQI
27th Jul 2025573 PMAQI
27th Jul 2025574 PMAQI
27th Jul 2025565 PMAQI
27th Jul 2025556 PMAQI
27th Jul 2025607 PMAQI
27th Jul 2025618 PMAQI
27th Jul 2025599 PMAQI
27th Jul 20256210 PMAQI
27th Jul 20256311 PMAQI
28th Jul 20256512 AMAQI
28th Jul 2025651 AMAQI
28th Jul 2025642 AMAQI
28th Jul 2025653 AMAQI
28th Jul 2025654 AMAQI
30°C27/35°C
28th Jul 2025655 AMAQI
28th Jul 2025656 AMAQI
28th Jul 2025667 AMAQI
28th Jul 2025768 AMAQI
28th Jul 2025829 AMAQI
28th Jul 20255910 AMAQI
28th Jul 20255211 AMAQI
28th Jul 20255412 PMAQI
28th Jul 2025591 PMAQI
28th Jul 2025662 PMAQI
28th Jul 2025663 PMAQI
28th Jul 2025634 PMAQI
28th Jul 2025645 PMAQI
28th Jul 2025626 PMAQI
28th Jul 2025627 PMAQI
28th Jul 2025638 PMAQI
28th Jul 2025629 PMAQI
28th Jul 20256210 PMAQI
28th Jul 20256211 PMAQI
29th Jul 20255912 AMAQI
29th Jul 2025611 AMAQI
29th Jul 2025642 AMAQI
29th Jul 2025643 AMAQI
29th Jul 2025644 AMAQI
29°C24/36°C
29th Jul 2025645 AMAQI
29th Jul 2025656 AMAQI
29th Jul 2025657 AMAQI
29th Jul 2025348 AMAQI
29th Jul 2025309 AMAQI
29th Jul 20253010 AMAQI
29th Jul 20253211 AMAQI
29th Jul 20253312 PMAQI
29th Jul 2025321 PMAQI
29th Jul 2025312 PMAQI
29th Jul 2025313 PMAQI
29th Jul 2025304 PMAQI
29th Jul 2025305 PMAQI
29th Jul 2025306 PMAQI
29th Jul 2025377 PMAQI
29th Jul 2025568 PMAQI
29th Jul 2025559 PMAQI
29th Jul 20255610 PMAQI
29th Jul 20255511 PMAQI
30th Jul 20255512 AMAQI
30th Jul 2025631 AMAQI
30th Jul 2025632 AMAQI
30th Jul 2025623 AMAQI
30th Jul 2025604 AMAQI
27°C24/31°C
30th Jul 2025605 AMAQI
30th Jul 2025596 AMAQI
30th Jul 2025597 AMAQI
30th Jul 2025568 AMAQI
30th Jul 2025599 AMAQI
30th Jul 20255310 AMAQI
30th Jul 20253411 AMAQI
30th Jul 20254312 PMAQI
30th Jul 2025411 PMAQI
30th Jul 2025462 PMAQI
30th Jul 2025433 PMAQI
30th Jul 2025404 PMAQI
30th Jul 2025405 PMAQI
30th Jul 2025406 PMAQI
30th Jul 2025527 PMAQI
30th Jul 2025588 PMAQI
30th Jul 2025579 PMAQI
30th Jul 20255810 PMAQI
30th Jul 20255811 PMAQI
31st Jul 20256112 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 20257010 AMAQI
31st Jul 20256211 AMAQI
31st Jul 20256312 PMAQI
31st Jul 2025591 PMAQI
31st Jul 2025612 PMAQI
31st Jul 2025633 PMAQI
31st Jul 2025644 PMAQI
31st Jul 2025625 PMAQI
31st Jul 2025606 PMAQI
31st Jul 2025627 PMAQI
31st Jul 2025678 PMAQI
31st Jul 2025699 PMAQI
31st Jul 20256610 PMAQI
31st Jul 20256811 PMAQI
1st Aug 20256612 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 2025738 AMAQI
1st Aug 2025689 AMAQI
1st Aug 20256610 AMAQI
1st Aug 20256211 AMAQI
1st Aug 20255912 PMAQI
1st Aug 2025661 PMAQI
1st Aug 2025702 PMAQI
1st Aug 2025683 PMAQI
1st Aug 2025734 PMAQI
1st Aug 2025775 PMAQI
1st Aug 2025706 PMAQI
1st Aug 2025707 PMAQI
1st Aug 2025668 PMAQI
1st Aug 2025699 PMAQI
1st Aug 20256610 PMAQI
1st Aug 20256911 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 2025748 AMAQI
2nd Aug 2025739 AMAQI
2nd Aug 20256910 AMAQI
2nd Aug 20256111 AMAQI
2nd Aug 20255812 PMAQI
2nd Aug 2025621 PMAQI
2nd Aug 2025632 PMAQI
2nd Aug 2025623 PMAQI
2nd Aug 2025634 PMAQI
2nd Aug 2025645 PMAQI
2nd Aug 2025676 PMAQI
2nd Aug 2025647 PMAQI
2nd Aug 2025648 PMAQI
2nd Aug 2025629 PMAQI
2nd Aug 20256310 PMAQI
2nd Aug 20256211 PMAQI
3rd Aug 20256212 AMAQI
3rd Aug 2025601 AMAQI
3rd Aug 2025602 AMAQI
3rd Aug 2025633 AMAQI
3rd Aug 2025634 AMAQI
30°C24/37°C
3rd Aug 2025625 AMAQI
3rd Aug 2025626 AMAQI
3rd Aug 2025627 AMAQI
3rd Aug 2025568 AMAQI
3rd Aug 2025609 AMAQI
3rd Aug 20255210 AMAQI
3rd Aug 20255811 AMAQI
3rd Aug 20255812 PMAQI
3rd Aug 2025601 PMAQI
3rd Aug 2025582 PMAQI
3rd Aug 2025603 PMAQI
3rd Aug 2025644 PMAQI
3rd Aug 2025655 PMAQI
3rd Aug 2025656 PMAQI
3rd Aug 2025647 PMAQI
3rd Aug 2025638 PMAQI
3rd Aug 2025659 PMAQI
3rd Aug 20256610 PMAQI
3rd Aug 20256411 PMAQI
4th Aug 20256412 AMAQI
4th Aug 2025601 AMAQI
4th Aug 2025602 AMAQI
4th Aug 2025603 AMAQI
4th Aug 2025604 AMAQI
30°C25/36°C
4th Aug 2025605 AMAQI
4th Aug 2025606 AMAQI
4th Aug 2025607 AMAQI
4th Aug 2025768 AMAQI
4th Aug 2025719 AMAQI
4th Aug 20257310 AMAQI
4th Aug 20256811 AMAQI
4th Aug 20256212 PMAQI
4th Aug 2025581 PMAQI
4th Aug 2025582 PMAQI
4th Aug 2025633 PMAQI
4th Aug 2025634 PMAQI
4th Aug 2025635 PMAQI
4th Aug 2025656 PMAQI
4th Aug 2025647 PMAQI
4th Aug 2025648 PMAQI
4th Aug 2025639 PMAQI
4th Aug 20256310 PMAQI
4th Aug 20256511 PMAQI
5th Aug 20256212 AMAQI
5th Aug 2025601 AMAQI
5th Aug 2025592 AMAQI
5th Aug 2025603 AMAQI
5th Aug 2025644 AMAQI
27°C24/32°C
5th Aug 2025645 AMAQI
5 AM5th Aug 2025636 AMAQI
5th Aug 2025647 AMAQI
5th Aug 2025748 AMAQI
5th Aug 2025689 AMAQI
5th Aug 20256210 AMAQI
5th Aug 20256311 AMAQI
5th Aug 20256412 PMAQI
12 PM5th Aug 2025601 PMAQI
5th Aug 2025632 PMAQI
5th Aug 2025613 PMAQI
5th Aug 2025584 PMAQI
5th Aug 2025615 PMAQI
5th Aug 2025606 PMAQI
5th Aug 2025607 PMAQI
7 PM5th Aug 2025648 PMAQI
12 AM
4 AM
--°C/°C
Day time
Avg. Highest Time
8 AM - 9 AM
74AQI
2 hours / Day
60 hours / Month
Avg. Lowest Time
11 AM - 7 PM
61AQI
9 hours / Day
270 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 8 AM to 9 AM (Avg. 74), while the lowest AQI was between 11 AM to 7 PM (Avg. 61).
Night time
Avg. Highest Time
12 AM - 11 PM
65AQI
9 hours / Day
270 hours / Month
Avg. Lowest Time
12 AM - 11 PM
65AQI
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. 65), while the lowest AQI was between 12 AM to 11 PM (Avg. 65).
2025 Days Vs Air Quality
North China Institute Of Aerospace, Langfang, Hebei, China
2025
3%
6
67%
143
26%
56
5%
10
Total number of days with different AQI categories in last 217 days in 2025 (148 days remaining)
Good
6 DaysModerate
143 DaysPoor
56 DaysUnhealthy
10 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 3%
Health Risk Level:
Extreme
In 2025, 3% of 217 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
North China Institute Of Aerospace, 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
105AQI
105AQI
2nd January 2025
69AQI
69AQI
3rd January 2025
84AQI
84AQI
4th January 2025
124AQI
124AQI
5th January 2025
99AQI
99AQI
6th January 2025
75AQI
75AQI
7th January 2025
68AQI
68AQI
8th January 2025
47AQI
47AQI
9th January 2025
48AQI
48AQI
10th January 2025
53AQI
53AQI
11th January 2025
60AQI
60AQI
12th January 2025
56AQI
56AQI
13th January 2025
113AQI
113AQI
14th January 2025
52AQI
52AQI
15th January 2025
72AQI
72AQI
16th January 2025
60AQI
60AQI
17th January 2025
113AQI
113AQI
18th January 2025
138AQI
138AQI
19th January 2025
82AQI
82AQI
20th January 2025
156AQI
156AQI
21st January 2025
112AQI
112AQI
22nd January 2025
122AQI
122AQI
23rd January 2025
126AQI
126AQI
24th January 2025
154AQI
154AQI
25th January 2025
158AQI
158AQI
26th January 2025
129AQI
129AQI
27th January 2025
82AQI
82AQI
28th January 2025
87AQI
87AQI
29th January 2025
174AQI
174AQI
30th January 2025
109AQI
109AQI
31st January 2025
149AQI
149AQI
1st February 2025
119AQI
119AQI
2nd February 2025
104AQI
104AQI
3rd February 2025
64AQI
64AQI
4th February 2025
63AQI
63AQI
5th February 2025
56AQI
56AQI
6th February 2025
63AQI
63AQI
7th February 2025
41AQI
41AQI
8th February 2025
46AQI
46AQI
9th February 2025
56AQI
56AQI
10th February 2025
128AQI
128AQI
11th February 2025
137AQI
137AQI
12th February 2025
89AQI
89AQI
13th February 2025
126AQI
126AQI
14th February 2025
131AQI
131AQI
15th February 2025
132AQI
132AQI
16th February 2025
78AQI
78AQI
17th February 2025
71AQI
71AQI
18th February 2025
91AQI
91AQI
19th February 2025
76AQI
76AQI
20th February 2025
82AQI
82AQI
21st February 2025
63AQI
63AQI
22nd February 2025
58AQI
58AQI
23rd February 2025
48AQI
48AQI
24th February 2025
85AQI
85AQI
25th February 2025
67AQI
67AQI
26th February 2025
108AQI
108AQI
27th February 2025
143AQI
143AQI
28th February 2025
165AQI
165AQI
1st March 2025
200AQI
200AQI
2nd March 2025
111AQI
111AQI
3rd March 2025
102AQI
102AQI
4th March 2025
104AQI
104AQI
5th March 2025
139AQI
139AQI
6th March 2025
73AQI
73AQI
7th March 2025
139AQI
139AQI
8th March 2025
139AQI
139AQI
9th March 2025
160AQI
160AQI
10th March 2025
166AQI
166AQI
11th March 2025
176AQI
176AQI
12th March 2025
106AQI
106AQI
13th March 2025
151AQI
151AQI
14th March 2025
101AQI
101AQI
15th March 2025
103AQI
103AQI
16th March 2025
71AQI
71AQI
17th March 2025
67AQI
67AQI
18th March 2025
63AQI
63AQI
19th March 2025
70AQI
70AQI
20th March 2025
51AQI
51AQI
21st March 2025
58AQI
58AQI
22nd March 2025
60AQI
60AQI
23rd March 2025
96AQI
96AQI
24th March 2025
64AQI
64AQI
25th March 2025
65AQI
65AQI
26th March 2025
104AQI
104AQI
27th March 2025
54AQI
54AQI
28th March 2025
70AQI
70AQI
29th March 2025
51AQI
51AQI
30th March 2025
71AQI
71AQI
31st March 2025
92AQI
92AQI
1st April 2025
74AQI
74AQI
2nd April 2025
61AQI
61AQI
3rd April 2025
93AQI
93AQI
4th April 2025
106AQI
106AQI
5th April 2025
63AQI
63AQI
6th April 2025
116AQI
116AQI
7th April 2025
86AQI
86AQI
8th April 2025
85AQI
85AQI
9th April 2025
84AQI
84AQI
10th April 2025
113AQI
113AQI
11th April 2025
133AQI
133AQI
12th April 2025
103AQI
103AQI
13th April 2025
95AQI
95AQI
14th April 2025
74AQI
74AQI
15th April 2025
78AQI
78AQI
16th April 2025
123AQI
123AQI
17th April 2025
91AQI
91AQI
18th April 2025
98AQI
98AQI
19th April 2025
90AQI
90AQI
20th April 2025
109AQI
109AQI
21st April 2025
134AQI
134AQI
22nd April 2025
76AQI
76AQI
23rd April 2025
98AQI
98AQI
24th April 2025
60AQI
60AQI
25th April 2025
84AQI
84AQI
26th April 2025
116AQI
116AQI
27th April 2025
70AQI
70AQI
28th April 2025
87AQI
87AQI
29th April 2025
86AQI
86AQI
30th April 2025
78AQI
78AQI
1st May 2025
69AQI
69AQI
2nd May 2025
78AQI
78AQI
3rd May 2025
56AQI
56AQI
4th May 2025
77AQI
77AQI
5th May 2025
96AQI
96AQI
6th May 2025
69AQI
69AQI
7th May 2025
105AQI
105AQI
8th May 2025
119AQI
119AQI
9th May 2025
74AQI
74AQI
10th May 2025
91AQI
91AQI
11th May 2025
95AQI
95AQI
12th May 2025
114AQI
114AQI
13th May 2025
104AQI
104AQI
14th May 2025
78AQI
78AQI
15th May 2025
80AQI
80AQI
16th May 2025
122AQI
122AQI
17th May 2025
73AQI
73AQI
18th May 2025
97AQI
97AQI
19th May 2025
109AQI
109AQI
20th May 2025
133AQI
133AQI
21st May 2025
118AQI
118AQI
22nd May 2025
126AQI
126AQI
23rd May 2025
115AQI
115AQI
24th May 2025
93AQI
93AQI
25th May 2025
99AQI
99AQI
26th May 2025
108AQI
108AQI
27th May 2025
110AQI
110AQI
28th May 2025
112AQI
112AQI
29th May 2025
108AQI
108AQI
30th May 2025
110AQI
110AQI
31st May 2025
120AQI
120AQI
1st June 2025
123AQI
123AQI
2nd June 2025
98AQI
98AQI
3rd June 2025
69AQI
69AQI
4th June 2025
69AQI
69AQI
5th June 2025
76AQI
76AQI
6th June 2025
69AQI
69AQI
7th June 2025
73AQI
73AQI
8th June 2025
78AQI
78AQI
9th June 2025
78AQI
78AQI
10th June 2025
69AQI
69AQI
11th June 2025
80AQI
80AQI
12th June 2025
88AQI
88AQI
13th June 2025
93AQI
93AQI
14th June 2025
92AQI
92AQI
15th June 2025
67AQI
67AQI
16th June 2025
61AQI
61AQI
17th June 2025
76AQI
76AQI
18th June 2025
80AQI
80AQI
19th June 2025
74AQI
74AQI
20th June 2025
63AQI
63AQI
21st June 2025
58AQI
58AQI
22nd June 2025
55AQI
55AQI
23rd June 2025
75AQI
75AQI
24th June 2025
82AQI
82AQI
25th June 2025
81AQI
81AQI
26th June 2025
79AQI
79AQI
27th June 2025
81AQI
81AQI
28th June 2025
87AQI
87AQI
29th June 2025
84AQI
84AQI
30th June 2025
82AQI
82AQI
1st July 2025
71AQI
71AQI
2nd July 2025
75AQI
75AQI
3rd July 2025
67AQI
67AQI
4th July 2025
72AQI
72AQI
5th July 2025
67AQI
67AQI
6th July 2025
55AQI
55AQI
7th July 2025
62AQI
62AQI
8th July 2025
67AQI
67AQI
9th July 2025
70AQI
70AQI
10th July 2025
70AQI
70AQI
11th July 2025
76AQI
76AQI
12th July 2025
77AQI
77AQI
13th July 2025
63AQI
63AQI
14th July 2025
64AQI
64AQI
15th July 2025
69AQI
69AQI
16th July 2025
63AQI
63AQI
17th July 2025
54AQI
54AQI
18th July 2025
66AQI
66AQI
19th July 2025
67AQI
67AQI
20th July 2025
60AQI
60AQI
21st July 2025
60AQI
60AQI
22nd July 2025
70AQI
70AQI
23rd July 2025
64AQI
64AQI
24th July 2025
64AQI
64AQI
25th July 2025
66AQI
66AQI
26th July 2025
64AQI
64AQI
27th July 2025
63AQI
63AQI
28th July 2025
64AQI
64AQI
29th July 2025
48AQI
48AQI
30th July 2025
53AQI
53AQI
31st July 2025
62AQI
62AQI
1st August 2025
65AQI
65AQI
2nd August 2025
63AQI
63AQI
3rd August 2025
61AQI
61AQI
99AQI
89AQI
99AQI
92AQI
99AQI
78AQI
65AQI
63AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202588AQI
2
14
11
4
3
15
9
1
16
10
5
21
9
15
16
29
1
1
30
3
6
143
56
10
Highest AQI recorded in
March99AQI
Lowest AQI recorded in
August63AQI
202493AQI
10
6
4
11
6
6
9
7
1
3
3
17
8
1
11
16
2
2
16
11
2
29
2
29
9
21
1
9
17
4
3
9
10
8
1
3
12
8
7
2
22
7
50
181
87
45
2
Highest AQI recorded in
March123AQI
Lowest AQI recorded in
August64AQI
2023106AQI
5
12
7
5
2
7
2
7
8
4
1
7
11
10
2
1
14
8
4
2
1
10
18
3
19
11
20
11
2
19
10
5
12
9
4
6
11
7
7
9
9
5
4
2
5
10
6
9
1
41
145
110
54
13
1
Highest AQI recorded in
March140AQI
Lowest AQI recorded in
August86AQI
2022100AQI
5
8
9
8
1
5
9
3
4
4
11
12
4
1
13
6
9
2
15
14
2
16
10
2
1
16
6
1
1
3
9
8
8
6
11
5
8
1
6
10
5
7
2
7
14
9
1
42
133
88
50
5
Highest AQI recorded in
November114AQI
Lowest AQI recorded in
December82AQI
202193AQI
15
8
8
8
9
9
2
5
10
14
2
2
15
12
2
19
9
1
2
22
6
17
14
10
21
9
18
3
10
11
8
2
7
9
10
3
1
6
11
8
6
65
168
83
42
4
2
Highest AQI recorded in
March161AQI
Lowest AQI recorded in
July48AQI
202097AQI
2
5
5
1
2
11
7
1
5
8
4
1
17
11
2
14
16
1
1
19
10
1
7
15
8
2
11
10
8
17
8
3
1
14
10
6
1
19
131
89
24
2
Highest AQI recorded in
October111AQI
Lowest AQI recorded in
September78AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2023(Avg.)
106AQILeast Polluted Year Recorded
2025(Avg.)
88AQINorth China Institute Of Aerospace's annual 2025 AQI (88) shows an average percentage change of -9.3% (improved AQI) compared to previous years: 2020 (97), 2021 (93), 2022 (100), 2023 (106), 2024 (93).
