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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+

October 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
26th Oct 2024
213AQI
Lowest AQI recorded on
6th Oct 2021
24AQI


Same Day Analysis (12th October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 4th highest AQI at 77 of Moderate air quality, showing improvement over 2024, 2023 and 2022 on the same day.

Download 2024 Annual Data

World Air Quality Report

Globe

Day & Night AQI Trend: 12th Oct - 13th Oct 2025

North China Institute Of Aerospace, Langfang, Hebei, China

AQI
Day
Night
.

6 AM12th Oct 2025

6 PM

5 AM13th Oct 2025

Day time
Avg. Highest Time
12PM12th Oct

84AQI

Avg. Lowest Time
5PM12th Oct

59AQI

Night time
Avg. Highest Time
2AM13th Oct

82AQI

Avg. Lowest Time
7PM12th Oct

56AQI

In the last 24 hours,

North China Institute Of Aerospace's AQI reached its highest point of 84 at 12 PM during the Day, while the lowest point, 56, was recorded at 7 PM during the Night between 12th Oct and 13th Oct 2025.

Day & Night AQI Trend : Sep - Oct 2025

North China Institute Of Aerospace, Langfang, Hebei, China

SepOct
13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th
Day
Night
13th Sep 2025746 AMAQI
13th Sep 2025767 AMAQI
13th Sep 20251068 AMAQI
13th Sep 2025969 AMAQI
13th Sep 202510010 AMAQI
13th Sep 20258911 AMAQI
13th Sep 20258212 PMAQI
13th Sep 2025781 PMAQI
13th Sep 2025802 PMAQI
13th Sep 2025703 PMAQI
13th Sep 2025684 PMAQI
13th Sep 2025665 PMAQI
13th Sep 2025726 PMAQI
13th Sep 2025747 PMAQI
13th Sep 2025748 PMAQI
13th Sep 2025769 PMAQI
13th Sep 20257410 PMAQI
13th Sep 20257411 PMAQI
14th Sep 20257412 AMAQI
14th Sep 2025711 AMAQI
14th Sep 2025702 AMAQI
14th Sep 2025753 AMAQI
14th Sep 2025754 AMAQI
14th Sep 2025765 AMAQI

24°C19/30°C

14th Sep 2025766 AMAQI
14th Sep 2025767 AMAQI
14th Sep 2025908 AMAQI
14th Sep 2025909 AMAQI
14th Sep 20258410 AMAQI
14th Sep 20259211 AMAQI
14th Sep 20257812 PMAQI
14th Sep 2025751 PMAQI
14th Sep 2025692 PMAQI
14th Sep 2025643 PMAQI
14th Sep 2025704 PMAQI
14th Sep 2025575 PMAQI
14th Sep 2025616 PMAQI
14th Sep 2025697 PMAQI
14th Sep 2025728 PMAQI
14th Sep 2025759 PMAQI
14th Sep 20257910 PMAQI
14th Sep 20257511 PMAQI
15th Sep 20257812 AMAQI
15th Sep 2025711 AMAQI
15th Sep 2025702 AMAQI
15th Sep 2025743 AMAQI
15th Sep 2025754 AMAQI
15th Sep 2025765 AMAQI

23°C19/30°C

15th Sep 2025746 AMAQI
15th Sep 2025777 AMAQI
15th Sep 2025478 AMAQI
15th Sep 2025569 AMAQI
15th Sep 20256310 AMAQI
15th Sep 20255911 AMAQI
15th Sep 20256812 PMAQI
15th Sep 2025641 PMAQI
15th Sep 2025752 PMAQI
15th Sep 2025663 PMAQI
15th Sep 2025664 PMAQI
15th Sep 2025725 PMAQI
15th Sep 2025706 PMAQI
15th Sep 2025707 PMAQI
15th Sep 2025748 PMAQI
15th Sep 2025729 PMAQI
15th Sep 20257810 PMAQI
15th Sep 20257511 PMAQI
16th Sep 20257212 AMAQI
16th Sep 2025751 AMAQI
16th Sep 2025742 AMAQI
16th Sep 2025743 AMAQI
16th Sep 2025734 AMAQI
16th Sep 2025735 AMAQI

21°C19/24°C

16th Sep 2025726 AMAQI
16th Sep 2025727 AMAQI
16th Sep 2025728 AMAQI
16th Sep 2025639 AMAQI
16th Sep 20255710 AMAQI
16th Sep 20255011 AMAQI
16th Sep 20255012 PMAQI
16th Sep 2025481 PMAQI
16th Sep 2025342 PMAQI
16th Sep 2025233 PMAQI
16th Sep 2025344 PMAQI
16th Sep 2025405 PMAQI
16th Sep 2025326 PMAQI
16th Sep 2025447 PMAQI
16th Sep 2025588 PMAQI
16th Sep 2025619 PMAQI
16th Sep 20255810 PMAQI
16th Sep 20255811 PMAQI
17th Sep 20256212 AMAQI
17th Sep 2025741 AMAQI
17th Sep 2025742 AMAQI
17th Sep 2025723 AMAQI
17th Sep 2025694 AMAQI
17th Sep 2025685 AMAQI

20°C17/24°C

17th Sep 2025696 AMAQI
17th Sep 2025697 AMAQI
17th Sep 2025348 AMAQI
17th Sep 2025259 AMAQI
17th Sep 20252410 AMAQI
17th Sep 20252411 AMAQI
17th Sep 20252612 PMAQI
17th Sep 2025281 PMAQI
17th Sep 2025202 PMAQI
17th Sep 2025283 PMAQI
17th Sep 2025324 PMAQI
17th Sep 2025345 PMAQI
17th Sep 2025316 PMAQI
17th Sep 2025507 PMAQI
17th Sep 2025608 PMAQI
17th Sep 2025609 PMAQI
17th Sep 20256110 PMAQI
17th Sep 20256011 PMAQI
18th Sep 20256112 AMAQI
18th Sep 2025681 AMAQI
18th Sep 2025702 AMAQI
18th Sep 2025673 AMAQI
18th Sep 2025624 AMAQI
18th Sep 2025625 AMAQI

18°C14/22°C

18th Sep 2025626 AMAQI
18th Sep 2025637 AMAQI
18th Sep 2025528 AMAQI
18th Sep 2025489 AMAQI
18th Sep 20255310 AMAQI
18th Sep 20255311 AMAQI
18th Sep 20254612 PMAQI
18th Sep 2025401 PMAQI
18th Sep 2025382 PMAQI
18th Sep 2025383 PMAQI
18th Sep 2025294 PMAQI
18th Sep 2025285 PMAQI
18th Sep 2025306 PMAQI
18th Sep 2025427 PMAQI
18th Sep 2025578 PMAQI
18th Sep 2025629 PMAQI
18th Sep 20256410 PMAQI
18th Sep 20256311 PMAQI
19th Sep 20256512 AMAQI
19th Sep 2025641 AMAQI
19th Sep 2025652 AMAQI
19th Sep 2025633 AMAQI
19th Sep 2025614 AMAQI
19th Sep 2025615 AMAQI

19°C13/26°C

19th Sep 2025616 AMAQI
19th Sep 2025617 AMAQI
19th Sep 2025688 AMAQI
19th Sep 2025649 AMAQI
19th Sep 20256010 AMAQI
19th Sep 20255711 AMAQI
19th Sep 20255612 PMAQI
19th Sep 2025501 PMAQI
19th Sep 2025412 PMAQI
19th Sep 2025423 PMAQI
19th Sep 2025444 PMAQI
19th Sep 2025485 PMAQI
19th Sep 2025516 PMAQI
19th Sep 2025537 PMAQI
19th Sep 2025578 PMAQI
19th Sep 2025599 PMAQI
19th Sep 20256010 PMAQI
19th Sep 20256211 PMAQI
20th Sep 20256512 AMAQI
20th Sep 2025641 AMAQI
20th Sep 2025642 AMAQI
20th Sep 2025633 AMAQI
20th Sep 2025624 AMAQI
20th Sep 2025625 AMAQI

18°C14/22°C

20th Sep 2025616 AMAQI
20th Sep 2025617 AMAQI
20th Sep 2025888 AMAQI
20th Sep 2025889 AMAQI
20th Sep 20258010 AMAQI
20th Sep 20257111 AMAQI
20th Sep 20256312 PMAQI
20th Sep 2025531 PMAQI
20th Sep 2025502 PMAQI
20th Sep 2025503 PMAQI
20th Sep 2025484 PMAQI
20th Sep 2025525 PMAQI
20th Sep 2025536 PMAQI
20th Sep 2025567 PMAQI
20th Sep 2025618 PMAQI
20th Sep 2025659 PMAQI
20th Sep 20257410 PMAQI
20th Sep 20257811 PMAQI
21st Sep 20257512 AMAQI
21st Sep 2025621 AMAQI
21st Sep 2025632 AMAQI
21st Sep 2025623 AMAQI
21st Sep 2025654 AMAQI
21st Sep 2025645 AMAQI

20°C13/28°C

21st Sep 2025656 AMAQI
21st Sep 2025657 AMAQI
21st Sep 20251108 AMAQI
21st Sep 20251499 AMAQI
21st Sep 202513510 AMAQI
21st Sep 202511811 AMAQI
21st Sep 202510612 PMAQI
21st Sep 20251201 PMAQI
21st Sep 20251182 PMAQI
21st Sep 20251053 PMAQI
21st Sep 2025834 PMAQI
21st Sep 2025755 PMAQI
21st Sep 2025666 PMAQI
21st Sep 2025647 PMAQI
21st Sep 2025738 PMAQI
21st Sep 2025729 PMAQI
21st Sep 20256810 PMAQI
21st Sep 20256811 PMAQI
22nd Sep 20256912 AMAQI
22nd Sep 2025661 AMAQI
22nd Sep 2025652 AMAQI
22nd Sep 2025683 AMAQI
22nd Sep 2025764 AMAQI
22nd Sep 2025755 AMAQI

22°C17/27°C

22nd Sep 2025766 AMAQI
22nd Sep 2025767 AMAQI
22nd Sep 2025878 AMAQI
22nd Sep 2025829 AMAQI
22nd Sep 20258410 AMAQI
22nd Sep 20257611 AMAQI
22nd Sep 20256812 PMAQI
22nd Sep 2025621 PMAQI
22nd Sep 2025562 PMAQI
22nd Sep 2025583 PMAQI
22nd Sep 2025544 PMAQI
22nd Sep 2025525 PMAQI
22nd Sep 2025536 PMAQI
22nd Sep 2025547 PMAQI
22nd Sep 2025638 PMAQI
22nd Sep 2025649 PMAQI
22nd Sep 20256410 PMAQI
22nd Sep 20256711 PMAQI
23rd Sep 20256812 AMAQI
23rd Sep 2025681 AMAQI
23rd Sep 2025702 AMAQI
23rd Sep 2025713 AMAQI
23rd Sep 2025714 AMAQI
23rd Sep 2025705 AMAQI

18°C16/21°C

23rd Sep 2025716 AMAQI
23rd Sep 2025707 AMAQI
23rd Sep 2025878 AMAQI
23rd Sep 2025909 AMAQI
23rd Sep 20259410 AMAQI
23rd Sep 20258911 AMAQI
23rd Sep 20258412 PMAQI
23rd Sep 2025881 PMAQI
23rd Sep 2025862 PMAQI
23rd Sep 2025823 PMAQI
23rd Sep 2025844 PMAQI
23rd Sep 2025785 PMAQI
23rd Sep 2025756 PMAQI
23rd Sep 2025887 PMAQI
23rd Sep 2025848 PMAQI
23rd Sep 2025889 PMAQI
23rd Sep 20258910 PMAQI
23rd Sep 20258811 PMAQI
24th Sep 20258312 AMAQI
24th Sep 2025701 AMAQI
24th Sep 2025722 AMAQI
24th Sep 2025713 AMAQI
24th Sep 2025744 AMAQI
24th Sep 2025745 AMAQI

17°C15/20°C

24th Sep 2025746 AMAQI
24th Sep 2025737 AMAQI
24th Sep 20251038 AMAQI
24th Sep 20251149 AMAQI
24th Sep 202511010 AMAQI
24th Sep 202510511 AMAQI
24th Sep 202510312 PMAQI
24th Sep 20251011 PMAQI
24th Sep 20251212 PMAQI
24th Sep 2025973 PMAQI
24th Sep 2025884 PMAQI
24th Sep 2025805 PMAQI
24th Sep 2025796 PMAQI
24th Sep 2025797 PMAQI
24th Sep 2025778 PMAQI
24th Sep 2025779 PMAQI
24th Sep 20258210 PMAQI
24th Sep 20258411 PMAQI
25th Sep 20258612 AMAQI
25th Sep 2025741 AMAQI
25th Sep 2025752 AMAQI
25th Sep 2025763 AMAQI
25th Sep 2025804 AMAQI
25th Sep 2025805 AMAQI

20°C13/28°C

25th Sep 2025806 AMAQI
25th Sep 2025807 AMAQI
25th Sep 20251188 AMAQI
25th Sep 20251449 AMAQI
25th Sep 202514010 AMAQI
25th Sep 202513011 AMAQI
25th Sep 202511512 PMAQI
25th Sep 2025881 PMAQI
25th Sep 2025792 PMAQI
25th Sep 2025763 PMAQI
25th Sep 2025854 PMAQI
25th Sep 20251005 PMAQI
25th Sep 20251006 PMAQI
25th Sep 2025857 PMAQI
25th Sep 2025978 PMAQI
25th Sep 2025939 PMAQI
25th Sep 202513010 PMAQI
25th Sep 202514211 PMAQI
26th Sep 202514712 AMAQI
26th Sep 20251481 AMAQI
26th Sep 20251442 AMAQI
26th Sep 20251493 AMAQI
26th Sep 20251504 AMAQI
26th Sep 20251515 AMAQI

22°C16/29°C

26th Sep 20251516 AMAQI
26th Sep 20251497 AMAQI
26th Sep 20251268 AMAQI
26th Sep 20251079 AMAQI
26th Sep 202511710 AMAQI
26th Sep 202511911 AMAQI
26th Sep 20259912 PMAQI
26th Sep 2025781 PMAQI
26th Sep 2025742 PMAQI
26th Sep 2025873 PMAQI
26th Sep 20251034 PMAQI
26th Sep 20251055 PMAQI
26th Sep 20251076 PMAQI
26th Sep 2025997 PMAQI
26th Sep 2025738 PMAQI
26th Sep 2025949 PMAQI
26th Sep 202512710 PMAQI
26th Sep 202515111 PMAQI
27th Sep 202515712 AMAQI
27th Sep 20251591 AMAQI
27th Sep 20251612 AMAQI
27th Sep 20251583 AMAQI
27th Sep 20251554 AMAQI
27th Sep 20251565 AMAQI

23°C19/29°C

27th Sep 20251566 AMAQI
27th Sep 20251537 AMAQI
27th Sep 20251448 AMAQI
27th Sep 20251349 AMAQI
27th Sep 202513110 AMAQI
27th Sep 202512311 AMAQI
27th Sep 202511412 PMAQI
27th Sep 20251101 PMAQI
27th Sep 20251052 PMAQI
27th Sep 2025933 PMAQI
27th Sep 2025814 PMAQI
27th Sep 2025715 PMAQI
27th Sep 2025686 PMAQI
27th Sep 2025717 PMAQI
27th Sep 2025748 PMAQI
27th Sep 2025839 PMAQI
27th Sep 20258810 PMAQI
27th Sep 20259311 PMAQI
28th Sep 20259512 AMAQI
28th Sep 2025971 AMAQI
28th Sep 20251042 AMAQI
28th Sep 20251183 AMAQI
28th Sep 20251304 AMAQI
28th Sep 20251325 AMAQI

19°C17/19°C

28th Sep 20251226 AMAQI
28th Sep 20251167 AMAQI
28th Sep 20251278 AMAQI
28th Sep 20251269 AMAQI
28th Sep 202511410 AMAQI
28th Sep 202510611 AMAQI
28th Sep 20259712 PMAQI
28th Sep 2025851 PMAQI
28th Sep 2025712 PMAQI
28th Sep 2025623 PMAQI
28th Sep 2025584 PMAQI
28th Sep 2025595 PMAQI
28th Sep 2025636 PMAQI
28th Sep 2025687 PMAQI
28th Sep 2025768 PMAQI
28th Sep 2025869 PMAQI
28th Sep 20259410 PMAQI
28th Sep 20259811 PMAQI
29th Sep 20259912 AMAQI
29th Sep 2025891 AMAQI
29th Sep 2025852 AMAQI
29th Sep 2025903 AMAQI
29th Sep 2025964 AMAQI
29th Sep 20251125 AMAQI

21°C15/29°C

29th Sep 20251126 AMAQI
29th Sep 20251137 AMAQI
29th Sep 20251148 AMAQI
29th Sep 20251029 AMAQI
29th Sep 20259810 AMAQI
29th Sep 20258211 AMAQI
29th Sep 20257312 PMAQI
29th Sep 2025651 PMAQI
29th Sep 2025642 PMAQI
29th Sep 2025433 PMAQI
29th Sep 2025504 PMAQI
29th Sep 2025515 PMAQI
29th Sep 2025576 PMAQI
29th Sep 2025667 PMAQI
29th Sep 2025718 PMAQI
29th Sep 2025809 PMAQI
29th Sep 20258510 PMAQI
29th Sep 20258511 PMAQI
30th Sep 20259012 AMAQI
30th Sep 2025971 AMAQI
30th Sep 2025982 AMAQI
30th Sep 2025813 AMAQI
30th Sep 2025844 AMAQI
30th Sep 2025715 AMAQI

23°C17/30°C

30th Sep 2025756 AMAQI
30th Sep 2025807 AMAQI
30th Sep 2025788 AMAQI
30th Sep 2025779 AMAQI
30th Sep 20255910 AMAQI
30th Sep 20256011 AMAQI
30th Sep 20254812 PMAQI
30th Sep 2025491 PMAQI
30th Sep 2025542 PMAQI
30th Sep 2025603 PMAQI
30th Sep 2025624 PMAQI
30th Sep 2025615 PMAQI
30th Sep 2025736 PMAQI
30th Sep 2025907 PMAQI
30th Sep 2025928 PMAQI
30th Sep 2025949 PMAQI
30th Sep 202510110 PMAQI
30th Sep 202511711 PMAQI
1st Oct 202511412 AMAQI
1st Oct 20251321 AMAQI
1st Oct 20251252 AMAQI
1st Oct 20251103 AMAQI
1st Oct 20251114 AMAQI
1st Oct 20251185 AMAQI

23°C17/30°C

1st Oct 20251156 AMAQI
1st Oct 2025907 AMAQI
1st Oct 2025888 AMAQI
1st Oct 2025829 AMAQI
1st Oct 20257610 AMAQI
1st Oct 20255511 AMAQI
1st Oct 20254312 PMAQI
1st Oct 2025421 PMAQI
1st Oct 2025432 PMAQI
1st Oct 2025513 PMAQI
1st Oct 2025524 PMAQI
1st Oct 2025535 PMAQI
1st Oct 2025546 PMAQI
1st Oct 2025647 PMAQI
1st Oct 2025778 PMAQI
1st Oct 2025979 PMAQI
1st Oct 202512310 PMAQI
1st Oct 202512011 PMAQI
2nd Oct 202512812 AMAQI
2nd Oct 20251331 AMAQI
2nd Oct 20251342 AMAQI
2nd Oct 20251413 AMAQI
2nd Oct 2025904 AMAQI
2nd Oct 2025825 AMAQI

24°C19/30°C

2nd Oct 2025966 AMAQI
2nd Oct 2025577 AMAQI
2nd Oct 2025378 AMAQI
2nd Oct 2025419 AMAQI
2nd Oct 20254610 AMAQI
2nd Oct 20255011 AMAQI
2nd Oct 20255712 PMAQI
2nd Oct 2025611 PMAQI
2nd Oct 2025592 PMAQI
2nd Oct 2025583 PMAQI
2nd Oct 2025604 PMAQI
2nd Oct 2025605 PMAQI
2nd Oct 2025656 PMAQI
2nd Oct 2025737 PMAQI
2nd Oct 2025838 PMAQI
2nd Oct 20251029 PMAQI
2nd Oct 202513610 PMAQI
2nd Oct 202513111 PMAQI
3rd Oct 202512612 AMAQI
3rd Oct 20251271 AMAQI
3rd Oct 20251632 AMAQI
3rd Oct 20251553 AMAQI
3rd Oct 20251584 AMAQI
3rd Oct 20251615 AMAQI

23°C19/28°C

3rd Oct 20251586 AMAQI
3rd Oct 20251607 AMAQI
3rd Oct 20251548 AMAQI
3rd Oct 20251509 AMAQI
3rd Oct 202514410 AMAQI
3rd Oct 202513611 AMAQI
3rd Oct 202512512 PMAQI
3rd Oct 20251131 PMAQI
3rd Oct 2025912 PMAQI
3rd Oct 2025763 PMAQI
3rd Oct 2025734 PMAQI
3rd Oct 2025725 PMAQI
3rd Oct 2025766 PMAQI
3rd Oct 2025757 PMAQI
3rd Oct 20251038 PMAQI
3rd Oct 20251039 PMAQI
3rd Oct 202511010 PMAQI
3rd Oct 202512411 PMAQI
4th Oct 202512012 AMAQI
4th Oct 20251301 AMAQI
4th Oct 20251312 AMAQI
4th Oct 20251293 AMAQI
4th Oct 20251314 AMAQI
4th Oct 20251445 AMAQI

20°C17/22°C

4th Oct 20251366 AMAQI
4th Oct 20251427 AMAQI
4th Oct 20251388 AMAQI
4th Oct 20251479 AMAQI
4th Oct 202513210 AMAQI
4th Oct 202513811 AMAQI
4th Oct 202514012 PMAQI
4th Oct 20251221 PMAQI
4th Oct 20251182 PMAQI
4th Oct 20251233 PMAQI
4th Oct 20251124 PMAQI
4th Oct 20251235 PMAQI
4th Oct 20251216 PMAQI
4th Oct 20251187 PMAQI
4th Oct 20251308 PMAQI
4th Oct 20251479 PMAQI
4th Oct 202513510 PMAQI
4th Oct 202515611 PMAQI
5th Oct 202515612 AMAQI
5th Oct 20251711 AMAQI
5th Oct 20251702 AMAQI
5th Oct 20251753 AMAQI
5th Oct 20251994 AMAQI
5th Oct 20252185 AMAQI

21°C17/26°C

5th Oct 20252156 AMAQI
5th Oct 20251947 AMAQI
5th Oct 20252088 AMAQI
5th Oct 20251809 AMAQI
5th Oct 202519710 AMAQI
5th Oct 202520011 AMAQI
5th Oct 202520412 PMAQI
5th Oct 20251901 PMAQI
5th Oct 20251912 PMAQI
5th Oct 20251913 PMAQI
5th Oct 20251264 PMAQI
5th Oct 2025905 PMAQI
5th Oct 2025776 PMAQI
5th Oct 2025697 PMAQI
5th Oct 2025728 PMAQI
5th Oct 2025729 PMAQI
5th Oct 20256610 PMAQI
5th Oct 20256011 PMAQI
6th Oct 20255712 AMAQI
6th Oct 2025541 AMAQI
6th Oct 2025532 AMAQI
6th Oct 2025443 AMAQI
6th Oct 2025434 AMAQI
6th Oct 2025515 AMAQI

19°C17/22°C

6th Oct 2025546 AMAQI
6th Oct 2025607 AMAQI
6th Oct 2025628 AMAQI
6th Oct 2025709 AMAQI
6th Oct 20257210 AMAQI
6th Oct 20257111 AMAQI
6th Oct 20256812 PMAQI
6th Oct 2025611 PMAQI
6th Oct 2025582 PMAQI
6th Oct 2025583 PMAQI
6th Oct 2025414 PMAQI
6th Oct 2025405 PMAQI
6th Oct 2025426 PMAQI
6th Oct 2025397 PMAQI
6th Oct 2025368 PMAQI
6th Oct 2025439 PMAQI
6th Oct 20255410 PMAQI
6th Oct 20255711 PMAQI
7th Oct 20255812 AMAQI
7th Oct 2025671 AMAQI

16°C12/21°C

7th Oct 2025507 PMAQI
7th Oct 2025908 PMAQI
7th Oct 20251089 PMAQI
7th Oct 202512310 PMAQI
7th Oct 202512711 PMAQI
8th Oct 202515212 AMAQI
8th Oct 20251521 AMAQI
8th Oct 20251542 AMAQI
8th Oct 20251443 AMAQI
8th Oct 20251214 AMAQI
8th Oct 2025905 AMAQI

19°C14/25°C

8th Oct 2025986 AMAQI
8th Oct 2025827 AMAQI
8th Oct 2025668 AMAQI
8th Oct 2025739 AMAQI
8th Oct 20255510 AMAQI
8th Oct 20255111 AMAQI
8th Oct 20254912 PMAQI
8th Oct 2025521 PMAQI
8th Oct 2025462 PMAQI
8th Oct 2025493 PMAQI
8th Oct 2025454 PMAQI
8th Oct 2025445 PMAQI
8th Oct 2025436 PMAQI
8th Oct 2025427 PMAQI
8th Oct 2025448 PMAQI
8th Oct 2025479 PMAQI
8th Oct 20254510 PMAQI
8th Oct 20253811 PMAQI
9th Oct 20253812 AMAQI
9th Oct 2025421 AMAQI
9th Oct 2025402 AMAQI
9th Oct 2025403 AMAQI
9th Oct 2025444 AMAQI
9th Oct 2025445 AMAQI

13°C9/18°C

9th Oct 2025396 AMAQI
9th Oct 2025377 AMAQI
9th Oct 2025368 AMAQI
9th Oct 2025349 AMAQI
9th Oct 20253310 AMAQI
9th Oct 20253611 AMAQI
9th Oct 20253512 PMAQI
9th Oct 2025341 PMAQI
9th Oct 2025492 PMAQI
9th Oct 2025543 PMAQI
9th Oct 2025544 PMAQI
9th Oct 2025395 PMAQI
9th Oct 2025396 PMAQI
9th Oct 2025397 PMAQI
9th Oct 2025378 PMAQI
9th Oct 2025399 PMAQI
9th Oct 20253810 PMAQI
9th Oct 20254511 PMAQI
10th Oct 20254512 AMAQI
10th Oct 2025511 AMAQI
10th Oct 2025502 AMAQI
10th Oct 2025493 AMAQI
10th Oct 2025454 AMAQI
10th Oct 2025495 AMAQI

9°C8/9°C

10th Oct 2025476 AMAQI
10th Oct 2025437 AMAQI
10th Oct 2025428 AMAQI
10th Oct 2025429 AMAQI
10th Oct 20254810 AMAQI
10th Oct 20255211 AMAQI
10th Oct 20255312 PMAQI
10th Oct 2025541 PMAQI
10th Oct 2025532 PMAQI
10th Oct 2025573 PMAQI
10th Oct 2025564 PMAQI
10th Oct 2025565 PMAQI
10th Oct 2025576 PMAQI
10th Oct 2025547 PMAQI
10th Oct 2025588 PMAQI
10th Oct 2025629 PMAQI
10th Oct 20256510 PMAQI
10th Oct 20256411 PMAQI
11th Oct 20257112 AMAQI
11th Oct 2025721 AMAQI
11th Oct 2025642 AMAQI
11th Oct 2025623 AMAQI
11th Oct 2025604 AMAQI
11th Oct 2025565 AMAQI

10°C9/12°C

11th Oct 2025596 AMAQI
11th Oct 2025627 AMAQI
11th Oct 2025638 AMAQI
11th Oct 2025649 AMAQI
11th Oct 20256410 AMAQI
11th Oct 20256711 AMAQI
11th Oct 20256912 PMAQI
11th Oct 2025691 PMAQI
11th Oct 2025682 PMAQI
11th Oct 2025683 PMAQI
11th Oct 2025634 PMAQI
11th Oct 2025565 PMAQI
11th Oct 2025556 PMAQI
11th Oct 2025557 PMAQI
11th Oct 2025588 PMAQI
11th Oct 2025589 PMAQI
11th Oct 20255910 PMAQI
11th Oct 20257211 PMAQI
12th Oct 20258112 AMAQI
12th Oct 2025791 AMAQI
12th Oct 2025792 AMAQI
12th Oct 2025783 AMAQI
12th Oct 2025774 AMAQI
12th Oct 2025785 AMAQI

13°C10/18°C

12th Oct 2025766 AMAQI
12th Oct 2025757 AMAQI
12th Oct 2025798 AMAQI
12th Oct 2025759 AMAQI
12th Oct 20257510 AMAQI
12th Oct 20258011 AMAQI
12th Oct 20258412 PMAQI
12th Oct 2025781 PMAQI
12th Oct 2025812 PMAQI
12th Oct 2025813 PMAQI
12th Oct 2025744 PMAQI
12th Oct 2025595 PMAQI
12th Oct 2025576 PMAQI
12th Oct 2025567 PMAQI
12th Oct 2025778 PMAQI
12th Oct 2025699 PMAQI
12th Oct 20257210 PMAQI
12th Oct 20257411 PMAQI
13th Oct 20257812 AMAQI
13th Oct 2025781 AMAQI
13th Oct 2025822 AMAQI
13th Oct 2025793 AMAQI
13th Oct 2025824 AMAQI
13th Oct 2025745 AMAQI

14°C12/17°C

13th Oct 2025736 AMAQI
6 AM
13th Oct 2025747 AMAQI
13th Oct 2025758 AMAQI
13th Oct 2025749 AMAQI
13th Oct 20257510 AMAQI
13th Oct 20257511 AMAQI
13th Oct 20257412 PMAQI
12 PM
13th Oct 20251011 PMAQI
13th Oct 20251102 PMAQI
13th Oct 20251143 PMAQI
13th Oct 20251024 PMAQI
13th Oct 20251055 PMAQI
13th Oct 20251116 PMAQI
6 PM
13th Oct 20251097 PMAQI
13th Oct 20251078 PMAQI
13th Oct 20251099 PMAQI
13th Oct 20258310 PMAQI
13th Oct 20257911 PMAQI
12 AM
5 AM

--°C/°C

Day time
Avg. Highest Time
6 AM

90AQI

1 hours / Day
30 hours / Month
Avg. Lowest Time
5 PM - 6 PM

65AQI

2 hours / Day
60 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 6 AM to 6 AM (Avg. 90), while the lowest AQI was between 5 PM to 6 PM (Avg. 65).
Night time
Avg. Highest Time
12 AM - 5 AM

90AQI

6 hours / Day
180 hours / Month
Avg. Lowest Time
7 PM

67AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 5 AM (Avg. 90), while the lowest AQI was between 7 PM to 7 PM (Avg. 67).

2025 Days Vs Air Quality

North China Institute Of Aerospace, Langfang, Hebei, China

2025

2%

7

73%

207

21%

60

4%

11

Total number of days with different AQI categories in last 286 days in 2025 (79 days remaining)

Good
7 Days
Moderate
207 Days
Poor
60 Days
Unhealthy
11 Days
Severe
0 Days
Hazardous
0 Days



Under WHO’s Safe Air Quality Limits: 2%

Health Risk Level:

Extreme

In 2025, 2% of 286 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.

-1th undefined 2025
-1th undefined 2025
-1th undefined 2025
1st January 2025
105AQI
2nd January 2025
69AQI
3rd January 2025
84AQI
4th January 2025
124AQI
5th January 2025
99AQI
6th January 2025
75AQI
7th January 2025
68AQI
8th January 2025
47AQI
9th January 2025
48AQI
10th January 2025
53AQI
11th January 2025
60AQI
12th January 2025
56AQI
13th January 2025
113AQI
14th January 2025
52AQI
15th January 2025
72AQI
16th January 2025
60AQI
17th January 2025
113AQI
18th January 2025
138AQI
19th January 2025
82AQI
20th January 2025
156AQI
21st January 2025
112AQI
22nd January 2025
122AQI
23rd January 2025
126AQI
24th January 2025
154AQI
25th January 2025
158AQI
26th January 2025
129AQI
27th January 2025
82AQI
28th January 2025
87AQI
29th January 2025
174AQI
30th January 2025
109AQI
31st January 2025
149AQI
1st February 2025
119AQI
2nd February 2025
104AQI
3rd February 2025
64AQI
4th February 2025
63AQI
5th February 2025
56AQI
6th February 2025
63AQI
7th February 2025
41AQI
8th February 2025
46AQI
9th February 2025
56AQI
10th February 2025
128AQI
11th February 2025
137AQI
12th February 2025
89AQI
13th February 2025
126AQI
14th February 2025
131AQI
15th February 2025
132AQI
16th February 2025
78AQI
17th February 2025
71AQI
18th February 2025
91AQI
19th February 2025
76AQI
20th February 2025
82AQI
21st February 2025
63AQI
22nd February 2025
58AQI
23rd February 2025
48AQI
24th February 2025
85AQI
25th February 2025
67AQI
26th February 2025
108AQI
27th February 2025
143AQI
28th February 2025
165AQI
1st March 2025
200AQI
2nd March 2025
111AQI
3rd March 2025
102AQI
4th March 2025
104AQI
5th March 2025
139AQI
6th March 2025
73AQI
7th March 2025
139AQI
8th March 2025
139AQI
9th March 2025
160AQI
10th March 2025
166AQI
11th March 2025
176AQI
12th March 2025
106AQI
13th March 2025
151AQI
14th March 2025
101AQI
15th March 2025
103AQI
16th March 2025
71AQI
17th March 2025
67AQI
18th March 2025
63AQI
19th March 2025
70AQI
20th March 2025
51AQI
21st March 2025
58AQI
22nd March 2025
60AQI
23rd March 2025
96AQI
24th March 2025
64AQI
25th March 2025
65AQI
26th March 2025
104AQI
27th March 2025
54AQI
28th March 2025
70AQI
29th March 2025
51AQI
30th March 2025
71AQI
31st March 2025
92AQI
1st April 2025
74AQI
2nd April 2025
61AQI
3rd April 2025
93AQI
4th April 2025
106AQI
5th April 2025
63AQI
6th April 2025
116AQI
7th April 2025
86AQI
8th April 2025
85AQI
9th April 2025
84AQI
10th April 2025
113AQI
11th April 2025
133AQI
12th April 2025
103AQI
13th April 2025
95AQI
14th April 2025
74AQI
15th April 2025
78AQI
16th April 2025
123AQI
17th April 2025
91AQI
18th April 2025
98AQI
19th April 2025
90AQI
20th April 2025
109AQI
21st April 2025
134AQI
22nd April 2025
76AQI
23rd April 2025
98AQI
24th April 2025
60AQI
25th April 2025
84AQI
26th April 2025
116AQI
27th April 2025
70AQI
28th April 2025
87AQI
29th April 2025
86AQI
30th April 2025
78AQI
1st May 2025
69AQI
2nd May 2025
78AQI
3rd May 2025
56AQI
4th May 2025
77AQI
5th May 2025
96AQI
6th May 2025
69AQI
7th May 2025
105AQI
8th May 2025
119AQI
9th May 2025
74AQI
10th May 2025
91AQI
11th May 2025
95AQI
12th May 2025
114AQI
13th May 2025
104AQI
14th May 2025
78AQI
15th May 2025
80AQI
16th May 2025
122AQI
17th May 2025
73AQI
18th May 2025
97AQI
19th May 2025
109AQI
20th May 2025
133AQI
21st May 2025
118AQI
22nd May 2025
126AQI
23rd May 2025
115AQI
24th May 2025
93AQI
25th May 2025
99AQI
26th May 2025
108AQI
27th May 2025
110AQI
28th May 2025
112AQI
29th May 2025
108AQI
30th May 2025
110AQI
31st May 2025
120AQI
1st June 2025
123AQI
2nd June 2025
98AQI
3rd June 2025
69AQI
4th June 2025
69AQI
5th June 2025
76AQI
6th June 2025
69AQI
7th June 2025
73AQI
8th June 2025
78AQI
9th June 2025
78AQI
10th June 2025
69AQI
11th June 2025
80AQI
12th June 2025
88AQI
13th June 2025
93AQI
14th June 2025
92AQI
15th June 2025
67AQI
16th June 2025
61AQI
17th June 2025
76AQI
18th June 2025
80AQI
19th June 2025
74AQI
20th June 2025
63AQI
21st June 2025
58AQI
22nd June 2025
55AQI
23rd June 2025
75AQI
24th June 2025
82AQI
25th June 2025
81AQI
26th June 2025
79AQI
27th June 2025
81AQI
28th June 2025
87AQI
29th June 2025
84AQI
30th June 2025
82AQI
1st July 2025
71AQI
2nd July 2025
75AQI
3rd July 2025
67AQI
4th July 2025
72AQI
5th July 2025
67AQI
6th July 2025
55AQI
7th July 2025
62AQI
8th July 2025
67AQI
9th July 2025
70AQI
10th July 2025
70AQI
11th July 2025
76AQI
12th July 2025
77AQI
13th July 2025
63AQI
14th July 2025
64AQI
15th July 2025
69AQI
16th July 2025
63AQI
17th July 2025
54AQI
18th July 2025
66AQI
19th July 2025
67AQI
20th July 2025
60AQI
21st July 2025
60AQI
22nd July 2025
70AQI
23rd July 2025
64AQI
24th July 2025
64AQI
25th July 2025
66AQI
26th July 2025
64AQI
27th July 2025
63AQI
28th July 2025
64AQI
29th July 2025
48AQI
30th July 2025
53AQI
31st July 2025
62AQI
1st August 2025
65AQI
2nd August 2025
63AQI
3rd August 2025
62AQI
4th August 2025
63AQI
5th August 2025
63AQI
6th August 2025
70AQI
7th August 2025
70AQI
8th August 2025
66AQI
9th August 2025
54AQI
10th August 2025
59AQI
11th August 2025
65AQI
12th August 2025
66AQI
13th August 2025
62AQI
14th August 2025
67AQI
15th August 2025
70AQI
16th August 2025
58AQI
17th August 2025
61AQI
18th August 2025
62AQI
19th August 2025
59AQI
20th August 2025
60AQI
21st August 2025
58AQI
22nd August 2025
55AQI
23rd August 2025
56AQI
24th August 2025
59AQI
25th August 2025
56AQI
26th August 2025
61AQI
27th August 2025
60AQI
28th August 2025
53AQI
29th August 2025
64AQI
30th August 2025
61AQI
31st August 2025
59AQI
1st September 2025
62AQI
2nd September 2025
71AQI
3rd September 2025
75AQI
4th September 2025
86AQI
5th September 2025
91AQI
6th September 2025
67AQI
7th September 2025
69AQI
8th September 2025
68AQI
9th September 2025
74AQI
10th September 2025
71AQI
11th September 2025
75AQI
12th September 2025
80AQI
13th September 2025
77AQI
14th September 2025
74AQI
15th September 2025
71AQI
16th September 2025
58AQI
17th September 2025
51AQI
18th September 2025
53AQI
19th September 2025
57AQI
20th September 2025
63AQI
21st September 2025
82AQI
22nd September 2025
67AQI
23rd September 2025
80AQI
24th September 2025
85AQI
25th September 2025
95AQI
26th September 2025
124AQI
27th September 2025
123AQI
28th September 2025
95AQI
29th September 2025
85AQI
30th September 2025
83AQI
1st October 2025
91AQI
2nd October 2025
92AQI
3rd October 2025
126AQI
4th October 2025
129AQI
5th October 2025
164AQI
6th October 2025
52AQI
7th October 2025
94AQI
8th October 2025
89AQI
9th October 2025
40AQI
10th October 2025
51AQI
11th October 2025
64AQI
12th October 2025
77AQI
13th October 2025
14th October 2025
15th October 2025
16th October 2025
17th October 2025
18th October 2025
19th October 2025
20th October 2025
21st October 2025
22nd October 2025
23rd October 2025
24th October 2025
25th October 2025
26th October 2025
27th October 2025
28th October 2025
29th October 2025
30th October 2025
31st October 2025
1st November 2025
2nd November 2025
3rd November 2025
4th November 2025
5th November 2025
6th November 2025
7th November 2025
8th November 2025
9th November 2025
10th November 2025
11th November 2025
12th November 2025
13th November 2025
14th November 2025
15th November 2025
16th November 2025
17th November 2025
18th November 2025
19th November 2025
20th November 2025
21st November 2025
22nd November 2025
23rd November 2025
24th November 2025
25th November 2025
26th November 2025
27th November 2025
28th November 2025
29th November 2025
30th November 2025
1st December 2025
2nd December 2025
3rd December 2025
4th December 2025
5th December 2025
6th December 2025
7th December 2025
8th December 2025
9th December 2025
10th December 2025
11th December 2025
12th December 2025
13th December 2025
14th December 2025
15th December 2025
16th December 2025
17th December 2025
18th December 2025
19th December 2025
20th December 2025
21st December 2025
22nd December 2025
23rd December 2025
24th December 2025
25th December 2025
26th December 2025
27th December 2025
28th December 2025
29th December 2025
30th December 2025
31st December 2025

99AQI

89AQI

99AQI

92AQI

99AQI

78AQI

65AQI

62AQI

77AQI

89AQI


No. of days

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

202585AQI

2
14
11
4
3
15
9
1
16
10
5
21
9
15
16
29
1
1
30
31
28
2
1
8
2
1
7
207
60
11

Highest AQI recorded in

March

99AQI


Lowest AQI recorded in

August

62AQI


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

March

123AQI


Lowest AQI recorded in

August

64AQI


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

March

140AQI


Lowest AQI recorded in

August

86AQI


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

November

114AQI


Lowest AQI recorded in

December

82AQI


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

March

161AQI


Lowest AQI recorded in

July

48AQI


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

October

111AQI


Lowest AQI recorded in

September

78AQI


Most & Least Polluted Years Over the Last 6 Years

Most Polluted Year Recorded
2023(Avg.)
106AQI
Least Polluted Year Recorded
2025(Avg.)
85AQI


North China Institute Of Aerospace's annual 2025 AQI (85) shows an average percentage change of -13.2% (improved AQI) compared to previous years: 2020 (97), 2021 (93), 2022 (100), 2023 (106), 2024 (93).