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HistoryAQIPM₂.₅PM₁₀COSO₂NO₂O₃

Bda, 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

Bda, Langfang, Hebei, China

2022
2023
2024
2025
2026
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
29th Oct 2025
209AQI
Lowest AQI recorded on
20th Oct 2023
21AQI

Same Day Analysis (1st October):
On this day, AQI across the 5 years varied significantly: 2026 ranks the most lowest AQI at 25 of Good air quality, showing improvement over 2025, 2024, 2023 and 2022 on the same day.

Day & Night AQI Trend: 30th Sep - 1st Oct 2026

Bda, Langfang, Hebei, China

AQI
Day
Night
.

5 AM30th Sep 2026

6 PM

4 AM1st Oct 2026

Day time
Avg. Highest Time
1PM30th Sep

34AQI

Avg. Lowest Time
10AM30th Sep

17AQI

Night time
Avg. Highest Time
9PM30th Sep

33AQI

Avg. Lowest Time
12AM1st Oct

19AQI

In the last 24 hours,

Bda's AQI reached its highest point of 34 at 1 PM during the Day, while the lowest point, 17, was recorded at 10 AM during the Day between 30th Sep and 1st Oct 2026.

Day & Night AQI Trend : Sep - Oct 2026

Bda, Langfang, Hebei, China

SepOct
02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th - 01st01st
Day
Night
2nd Sep 2026595 AMAQI
2nd Sep 2026566 AMAQI
2nd Sep 2026667 AMAQI
2nd Sep 2026658 AMAQI
2nd Sep 2026739 AMAQI
2nd Sep 20269210 AMAQI
2nd Sep 20266811 AMAQI
2nd Sep 20268112 PMAQI
2nd Sep 2026551 PMAQI
2nd Sep 2026572 PMAQI
2nd Sep 2026823 PMAQI
2nd Sep 2026804 PMAQI
2nd Sep 2026705 PMAQI
2nd Sep 2026556 PMAQI
2nd Sep 2026707 PMAQI
2nd Sep 2026708 PMAQI
2nd Sep 2026589 PMAQI
2nd Sep 20266710 PMAQI
2nd Sep 20265911 PMAQI
3rd Sep 20266912 AMAQI
3rd Sep 2026661 AMAQI
3rd Sep 2026792 AMAQI
3rd Sep 2026673 AMAQI
3rd Sep 2026514 AMAQI

24°C18/31°C

3rd Sep 2026605 AMAQI
3rd Sep 2026726 AMAQI
3rd Sep 2026817 AMAQI
3rd Sep 2026838 AMAQI
3rd Sep 2026889 AMAQI
3rd Sep 20268710 AMAQI
3rd Sep 20266811 AMAQI
3rd Sep 20265012 PMAQI
3rd Sep 2026511 PMAQI
3rd Sep 2026282 PMAQI
3rd Sep 2026443 PMAQI
3rd Sep 2026444 PMAQI
3rd Sep 2026385 PMAQI
3rd Sep 2026446 PMAQI
3rd Sep 2026537 PMAQI
3rd Sep 2026528 PMAQI
3rd Sep 2026489 PMAQI
3rd Sep 20265110 PMAQI
3rd Sep 20268211 PMAQI
4th Sep 20269212 AMAQI
4th Sep 2026921 AMAQI
4th Sep 2026632 AMAQI
4th Sep 2026593 AMAQI
4th Sep 2026834 AMAQI

25°C20/32°C

4th Sep 2026865 AMAQI
4th Sep 2026626 AMAQI
4th Sep 2026767 AMAQI
4th Sep 2026548 AMAQI
4th Sep 2026709 AMAQI
4th Sep 20265110 AMAQI
4th Sep 20264411 AMAQI
4th Sep 20264612 PMAQI
4th Sep 2026311 PMAQI
4th Sep 2026422 PMAQI
4th Sep 2026463 PMAQI
4th Sep 2026314 PMAQI
4th Sep 2026465 PMAQI
4th Sep 2026386 PMAQI
4th Sep 2026467 PMAQI
4th Sep 2026368 PMAQI
4th Sep 2026469 PMAQI
4th Sep 20266210 PMAQI
4th Sep 20264611 PMAQI
5th Sep 20266412 AMAQI
5th Sep 2026561 AMAQI
5th Sep 2026492 AMAQI
5th Sep 2026673 AMAQI
5th Sep 2026854 AMAQI

25°C20/31°C

5th Sep 2026845 AMAQI
5th Sep 2026826 AMAQI
5th Sep 2026987 AMAQI
5th Sep 2026728 AMAQI
5th Sep 2026999 AMAQI
5th Sep 202610610 AMAQI
5th Sep 202611411 AMAQI
5th Sep 202611812 PMAQI
5th Sep 2026781 PMAQI
5th Sep 2026712 PMAQI
5th Sep 2026743 PMAQI
5th Sep 2026654 PMAQI
5th Sep 2026655 PMAQI
5th Sep 2026836 PMAQI
5th Sep 2026697 PMAQI
5th Sep 2026908 PMAQI
5th Sep 20261069 PMAQI
5th Sep 202611010 PMAQI
5th Sep 20268811 PMAQI
6th Sep 20267412 AMAQI
6th Sep 2026571 AMAQI
6th Sep 2026462 AMAQI
6th Sep 2026553 AMAQI
6th Sep 2026704 AMAQI

26°C21/32°C

6th Sep 2026605 AMAQI
6th Sep 2026646 AMAQI
6th Sep 2026677 AMAQI
6th Sep 2026868 AMAQI
6th Sep 2026909 AMAQI
6th Sep 20268410 AMAQI
6th Sep 20266611 AMAQI
6th Sep 20263812 PMAQI
6th Sep 2026621 PMAQI
6th Sep 2026592 PMAQI
6th Sep 2026743 PMAQI
6th Sep 2026794 PMAQI
6th Sep 2026835 PMAQI
6th Sep 2026856 PMAQI
6th Sep 2026887 PMAQI
6th Sep 2026878 PMAQI
6th Sep 2026859 PMAQI
6th Sep 20267310 PMAQI
6th Sep 20266711 PMAQI
7th Sep 20263612 AMAQI
7th Sep 2026571 AMAQI
7th Sep 2026572 AMAQI
7th Sep 2026623 AMAQI
7th Sep 2026604 AMAQI

26°C20/32°C

7th Sep 2026585 AMAQI
7th Sep 2026746 AMAQI
7th Sep 2026587 AMAQI
7th Sep 2026678 AMAQI
7th Sep 2026879 AMAQI
7th Sep 20267010 AMAQI
7th Sep 20269211 AMAQI
7th Sep 20268012 PMAQI
7th Sep 2026711 PMAQI
7th Sep 2026852 PMAQI
7th Sep 2026873 PMAQI
7th Sep 2026934 PMAQI
7th Sep 2026895 PMAQI
7th Sep 2026896 PMAQI
7th Sep 2026867 PMAQI
7th Sep 2026538 PMAQI
7th Sep 2026389 PMAQI
7th Sep 20263310 PMAQI
7th Sep 20264211 PMAQI
8th Sep 20262512 AMAQI
8th Sep 2026171 AMAQI
8th Sep 202682 AMAQI
8th Sep 2026173 AMAQI
8th Sep 2026234 AMAQI

24°C17/31°C

8th Sep 2026175 AMAQI
8th Sep 2026126 AMAQI
8th Sep 2026177 AMAQI
8th Sep 2026238 AMAQI
8th Sep 2026259 AMAQI
8th Sep 20262510 AMAQI
8th Sep 20262111 AMAQI
8th Sep 20262512 PMAQI
8th Sep 2026231 PMAQI
8th Sep 2026212 PMAQI
8th Sep 2026193 PMAQI
8th Sep 2026254 PMAQI
8th Sep 2026125 PMAQI
8th Sep 202686 PMAQI
8th Sep 2026177 PMAQI
8th Sep 2026238 PMAQI
8th Sep 2026299 PMAQI
8th Sep 20261710 PMAQI
8th Sep 20263811 PMAQI
9th Sep 20262312 AMAQI
9th Sep 2026331 AMAQI
9th Sep 2026402 AMAQI
9th Sep 2026313 AMAQI
9th Sep 2026254 AMAQI

17°C15/22°C

9th Sep 2026335 AMAQI
9th Sep 2026336 AMAQI
9th Sep 2026427 AMAQI
9th Sep 2026508 AMAQI
9th Sep 2026529 AMAQI
9th Sep 20265210 AMAQI
9th Sep 20264611 AMAQI
9th Sep 20263112 PMAQI
9th Sep 2026191 PMAQI
9th Sep 2026122 PMAQI
9th Sep 2026173 PMAQI
9th Sep 2026214 PMAQI
9th Sep 2026175 PMAQI
9th Sep 2026126 PMAQI
9th Sep 2026217 PMAQI
9th Sep 2026238 PMAQI
9th Sep 2026369 PMAQI
9th Sep 20263610 PMAQI
9th Sep 20262911 PMAQI
10th Sep 20263812 AMAQI
10th Sep 2026381 AMAQI
10th Sep 2026442 AMAQI
10th Sep 2026423 AMAQI
10th Sep 2026424 AMAQI

19°C16/25°C

10th Sep 2026485 AMAQI
10th Sep 2026466 AMAQI
10th Sep 2026487 AMAQI
10th Sep 2026518 AMAQI
10th Sep 2026539 AMAQI
10th Sep 20264610 AMAQI
10th Sep 20263811 AMAQI
10th Sep 20262912 PMAQI
10th Sep 2026251 PMAQI
10th Sep 2026252 PMAQI
10th Sep 2026253 PMAQI
10th Sep 2026254 PMAQI
10th Sep 2026255 PMAQI
10th Sep 2026276 PMAQI
10th Sep 2026297 PMAQI
10th Sep 2026368 PMAQI
10th Sep 2026449 PMAQI
10th Sep 20264810 PMAQI
10th Sep 20264211 PMAQI
11th Sep 20264412 AMAQI
11th Sep 2026481 AMAQI
11th Sep 2026482 AMAQI
11th Sep 2026503 AMAQI
11th Sep 2026524 AMAQI

20°C14/28°C

11th Sep 2026505 AMAQI
11th Sep 2026496 AMAQI
11th Sep 2026517 AMAQI
11th Sep 2026528 AMAQI
11th Sep 2026529 AMAQI
11th Sep 20265210 AMAQI
11th Sep 20264011 AMAQI
11th Sep 20263312 PMAQI
11th Sep 2026381 PMAQI
11th Sep 2026382 PMAQI
11th Sep 2026333 PMAQI
11th Sep 2026364 PMAQI
11th Sep 2026385 PMAQI
11th Sep 2026446 PMAQI
11th Sep 2026507 PMAQI
11th Sep 2026488 PMAQI
11th Sep 2026559 PMAQI
11th Sep 20265710 PMAQI
11th Sep 20266011 PMAQI
12th Sep 20267012 AMAQI
12th Sep 2026841 AMAQI
12th Sep 2026742 AMAQI
12th Sep 2026763 AMAQI
12th Sep 2026924 AMAQI

22°C16/28°C

12th Sep 2026975 AMAQI
12th Sep 2026966 AMAQI
12th Sep 20261087 AMAQI
12th Sep 2026878 AMAQI
12th Sep 2026979 AMAQI
12th Sep 202612410 AMAQI
12th Sep 202610011 AMAQI
12th Sep 20268112 PMAQI
12th Sep 2026831 PMAQI
12th Sep 2026642 PMAQI
12th Sep 2026743 PMAQI
12th Sep 2026714 PMAQI
12th Sep 2026725 PMAQI
12th Sep 2026886 PMAQI
12th Sep 2026877 PMAQI
12th Sep 2026828 PMAQI
12th Sep 2026829 PMAQI
12th Sep 20269410 PMAQI
12th Sep 202611411 PMAQI
13th Sep 202611512 AMAQI
13th Sep 20261141 AMAQI
13th Sep 20261102 AMAQI
13th Sep 20261353 AMAQI

21°C16/27°C

13th Sep 20261085 AMAQI
13th Sep 20261086 AMAQI
13th Sep 20261187 AMAQI
13th Sep 20261208 AMAQI
13th Sep 20261159 AMAQI
13th Sep 20268010 AMAQI
13th Sep 20262511 AMAQI
13th Sep 20263612 PMAQI
13th Sep 2026401 PMAQI
13th Sep 2026422 PMAQI
13th Sep 2026293 PMAQI
13th Sep 2026254 PMAQI
13th Sep 2026255 PMAQI
13th Sep 2026336 PMAQI
13th Sep 2026387 PMAQI
13th Sep 2026578 PMAQI
13th Sep 2026539 PMAQI
13th Sep 20266410 PMAQI
13th Sep 20266511 PMAQI
14th Sep 20267012 AMAQI
14th Sep 2026661 AMAQI
14th Sep 2026742 AMAQI
14th Sep 2026573 AMAQI
14th Sep 2026554 AMAQI

22°C17/29°C

14th Sep 2026295 AMAQI
14th Sep 2026296 AMAQI
14th Sep 2026317 AMAQI
14th Sep 2026508 AMAQI
14th Sep 2026389 AMAQI
14th Sep 20262710 AMAQI
14th Sep 20262111 AMAQI
14th Sep 20261712 PMAQI
14th Sep 2026251 PMAQI
14th Sep 2026172 PMAQI
14th Sep 2026103 PMAQI
14th Sep 2026124 PMAQI
14th Sep 2026255 PMAQI
14th Sep 2026366 PMAQI
14th Sep 2026297 PMAQI
14th Sep 2026348 PMAQI
14th Sep 2026469 PMAQI
14th Sep 20266810 PMAQI
14th Sep 20266811 PMAQI
15th Sep 20268312 AMAQI
15th Sep 2026881 AMAQI
15th Sep 2026762 AMAQI
15th Sep 2026683 AMAQI
15th Sep 2026654 AMAQI

21°C15/26°C

15th Sep 2026645 AMAQI
15th Sep 2026736 AMAQI
15th Sep 2026817 AMAQI
15th Sep 2026838 AMAQI
15th Sep 2026769 AMAQI
15th Sep 20267110 AMAQI
15th Sep 20266911 AMAQI
15th Sep 20266212 PMAQI
15th Sep 2026661 PMAQI
15th Sep 2026602 PMAQI
15th Sep 2026663 PMAQI
15th Sep 2026604 PMAQI
15th Sep 2026625 PMAQI
15th Sep 2026676 PMAQI
15th Sep 2026787 PMAQI
15th Sep 2026848 PMAQI
15th Sep 20261029 PMAQI
15th Sep 20269410 PMAQI
15th Sep 202611411 PMAQI
16th Sep 202612012 AMAQI
16th Sep 20261191 AMAQI
16th Sep 20261122 AMAQI
16th Sep 20261083 AMAQI
16th Sep 20261084 AMAQI

22°C16/28°C

16th Sep 20261205 AMAQI
16th Sep 20261386 AMAQI
16th Sep 20261267 AMAQI
16th Sep 20261508 AMAQI
16th Sep 20261289 AMAQI
16th Sep 202612810 AMAQI
16th Sep 202612911 AMAQI
16th Sep 202612912 PMAQI
16th Sep 20261281 PMAQI
16th Sep 20261202 PMAQI
16th Sep 20261083 PMAQI
16th Sep 20261064 PMAQI
16th Sep 20261105 PMAQI
16th Sep 20261286 PMAQI
16th Sep 20261307 PMAQI
16th Sep 20261368 PMAQI
16th Sep 20261469 PMAQI
16th Sep 202614810 PMAQI
16th Sep 202615111 PMAQI
17th Sep 202615212 AMAQI
17th Sep 20261541 AMAQI
17th Sep 20261492 AMAQI
17th Sep 20261513 AMAQI
17th Sep 20261544 AMAQI

24°C17/30°C

17th Sep 20261525 AMAQI
17th Sep 20261546 AMAQI
17th Sep 20261587 AMAQI
17th Sep 20261588 AMAQI
17th Sep 20261489 AMAQI
17th Sep 202615810 AMAQI
17th Sep 202615611 AMAQI
17th Sep 202615512 PMAQI
17th Sep 20261521 PMAQI
17th Sep 20261502 PMAQI
17th Sep 2026983 PMAQI
17th Sep 2026954 PMAQI
17th Sep 2026835 PMAQI
17th Sep 2026816 PMAQI
17th Sep 2026897 PMAQI
17th Sep 2026828 PMAQI
17th Sep 20261049 PMAQI
17th Sep 202615610 PMAQI
17th Sep 202615211 PMAQI
18th Sep 202614712 AMAQI
18th Sep 20261461 AMAQI
18th Sep 20261262 AMAQI
18th Sep 20261023 AMAQI
18th Sep 2026764 AMAQI

25°C20/32°C

18th Sep 2026855 AMAQI
18th Sep 2026806 AMAQI
18th Sep 2026687 AMAQI
18th Sep 2026748 AMAQI
18th Sep 2026759 AMAQI
18th Sep 20267810 AMAQI
18th Sep 20266411 AMAQI
18th Sep 20267112 PMAQI
18th Sep 2026761 PMAQI
18th Sep 2026602 PMAQI
18th Sep 2026833 PMAQI
18th Sep 2026944 PMAQI
18th Sep 2026705 PMAQI
18th Sep 2026836 PMAQI
18th Sep 2026687 PMAQI
18th Sep 2026888 PMAQI
18th Sep 2026749 PMAQI
18th Sep 202612010 PMAQI
18th Sep 20268411 PMAQI
19th Sep 20268812 AMAQI
19th Sep 2026801 AMAQI
19th Sep 2026972 AMAQI
19th Sep 2026823 AMAQI
19th Sep 2026714 AMAQI

22°C17/29°C

19th Sep 2026975 AMAQI
19th Sep 2026806 AMAQI
19th Sep 2026787 AMAQI
19th Sep 2026828 AMAQI
19th Sep 2026979 AMAQI
19th Sep 20268610 AMAQI
19th Sep 20267311 AMAQI
19th Sep 20266212 PMAQI
19th Sep 2026551 PMAQI
19th Sep 2026652 PMAQI
19th Sep 2026673 PMAQI
19th Sep 2026664 PMAQI
19th Sep 2026725 PMAQI
19th Sep 2026706 PMAQI
19th Sep 2026767 PMAQI
19th Sep 2026908 PMAQI
19th Sep 20261029 PMAQI
19th Sep 202610810 PMAQI
19th Sep 202614211 PMAQI
20th Sep 202612612 AMAQI
20th Sep 20261381 AMAQI
20th Sep 20261442 AMAQI
20th Sep 20261343 AMAQI
20th Sep 20261464 AMAQI

23°C17/29°C

20th Sep 20261325 AMAQI
20th Sep 20261346 AMAQI
20th Sep 20261447 AMAQI
20th Sep 20261528 AMAQI
20th Sep 20261289 AMAQI
20th Sep 202612910 AMAQI
20th Sep 202612411 AMAQI
20th Sep 202611812 PMAQI
20th Sep 20261151 PMAQI
20th Sep 20261002 PMAQI
20th Sep 2026983 PMAQI
20th Sep 20261084 PMAQI
20th Sep 20261025 PMAQI
20th Sep 2026936 PMAQI
20th Sep 20261167 PMAQI
20th Sep 20261188 PMAQI
20th Sep 20261219 PMAQI
20th Sep 202613110 PMAQI
20th Sep 202612011 PMAQI
21st Sep 202610612 AMAQI
21st Sep 2026781 AMAQI
21st Sep 2026872 AMAQI
21st Sep 2026883 AMAQI
21st Sep 2026834 AMAQI

24°C20/28°C

21st Sep 2026875 AMAQI
21st Sep 2026846 AMAQI
21st Sep 2026947 AMAQI
21st Sep 20261008 AMAQI
21st Sep 2026959 AMAQI
21st Sep 202610210 AMAQI
21st Sep 202611811 AMAQI
21st Sep 202612112 PMAQI
21st Sep 2026921 PMAQI
21st Sep 2026682 PMAQI
21st Sep 2026883 PMAQI
21st Sep 2026704 PMAQI
21st Sep 2026705 PMAQI
21st Sep 2026606 PMAQI
21st Sep 2026597 PMAQI
21st Sep 2026748 PMAQI
21st Sep 2026839 PMAQI
21st Sep 20268010 PMAQI
21st Sep 20267611 PMAQI
22nd Sep 20267812 AMAQI
22nd Sep 2026741 AMAQI
22nd Sep 2026762 AMAQI
22nd Sep 2026783 AMAQI
22nd Sep 2026964 AMAQI

23°C17/30°C

22nd Sep 20261125 AMAQI
22nd Sep 20261266 AMAQI
22nd Sep 20261527 AMAQI
22nd Sep 20261528 AMAQI
22nd Sep 20261499 AMAQI
22nd Sep 202614610 AMAQI
22nd Sep 202615511 AMAQI
22nd Sep 202613212 PMAQI
22nd Sep 2026901 PMAQI
22nd Sep 20261052 PMAQI
22nd Sep 2026893 PMAQI
22nd Sep 2026764 PMAQI
22nd Sep 2026815 PMAQI
22nd Sep 2026716 PMAQI
22nd Sep 2026747 PMAQI
22nd Sep 2026708 PMAQI
22nd Sep 2026769 PMAQI
22nd Sep 20268610 PMAQI
22nd Sep 20268511 PMAQI
23rd Sep 202610412 AMAQI
23rd Sep 20261221 AMAQI
23rd Sep 20261342 AMAQI
23rd Sep 20261503 AMAQI
23rd Sep 20261524 AMAQI

25°C19/31°C

23rd Sep 20261535 AMAQI
23rd Sep 20261566 AMAQI
23rd Sep 20261487 AMAQI
23rd Sep 20261528 AMAQI
23rd Sep 20261529 AMAQI
23rd Sep 202615210 AMAQI
23rd Sep 202614911 AMAQI
23rd Sep 202613012 PMAQI
23rd Sep 20261381 PMAQI
23rd Sep 20261502 PMAQI
23rd Sep 20261453 PMAQI
23rd Sep 20261514 PMAQI
23rd Sep 20261425 PMAQI
23rd Sep 20261486 PMAQI
23rd Sep 20261517 PMAQI
23rd Sep 20261548 PMAQI
23rd Sep 20261579 PMAQI
23rd Sep 202615810 PMAQI
23rd Sep 202616011 PMAQI
24th Sep 202615812 AMAQI
24th Sep 20261631 AMAQI
24th Sep 20261642 AMAQI
24th Sep 20261583 AMAQI
24th Sep 20261604 AMAQI

25°C18/31°C

24th Sep 20261625 AMAQI
24th Sep 20261686 AMAQI
24th Sep 20261627 AMAQI
24th Sep 20261608 AMAQI
24th Sep 20261619 AMAQI
24th Sep 202615210 AMAQI
24th Sep 20268411 AMAQI
24th Sep 20268312 PMAQI
24th Sep 2026761 PMAQI
24th Sep 20261362 PMAQI
24th Sep 20261303 PMAQI
24th Sep 20261224 PMAQI
24th Sep 2026855 PMAQI
24th Sep 2026856 PMAQI
24th Sep 2026847 PMAQI
24th Sep 2026848 PMAQI
24th Sep 2026879 PMAQI
24th Sep 20268110 PMAQI
24th Sep 20269411 PMAQI
25th Sep 20268812 AMAQI
25th Sep 2026831 AMAQI
25th Sep 2026922 AMAQI
25th Sep 2026953 AMAQI
25th Sep 2026864 AMAQI

22°C20/25°C

25th Sep 2026965 AMAQI
25th Sep 2026906 AMAQI
25th Sep 2026927 AMAQI
25th Sep 2026978 AMAQI
25th Sep 2026989 AMAQI
25th Sep 20269810 AMAQI
25th Sep 20269011 AMAQI
25th Sep 202610512 PMAQI
25th Sep 2026941 PMAQI
25th Sep 2026922 PMAQI
25th Sep 20261253 PMAQI
25th Sep 20261144 PMAQI
25th Sep 20261125 PMAQI
25th Sep 20261196 PMAQI
25th Sep 20261087 PMAQI
25th Sep 20261148 PMAQI
25th Sep 20261189 PMAQI
25th Sep 202611110 PMAQI
25th Sep 202614211 PMAQI
26th Sep 202614912 AMAQI
26th Sep 20261441 AMAQI
26th Sep 20261512 AMAQI
26th Sep 20261443 AMAQI
26th Sep 20261404 AMAQI

22°C18/28°C

26th Sep 20261525 AMAQI
26th Sep 20261426 AMAQI
26th Sep 20261487 AMAQI
26th Sep 20261408 AMAQI
26th Sep 20261329 AMAQI
26th Sep 202613510 AMAQI
26th Sep 202615011 AMAQI
26th Sep 202612012 PMAQI
26th Sep 20261321 PMAQI
26th Sep 2026992 PMAQI
26th Sep 20261023 PMAQI
26th Sep 20261064 PMAQI
26th Sep 2026935 PMAQI
26th Sep 20261056 PMAQI
26th Sep 20261057 PMAQI
26th Sep 20261258 PMAQI
26th Sep 20261469 PMAQI
26th Sep 202615110 PMAQI
26th Sep 20267211 PMAQI
27th Sep 20265612 AMAQI
27th Sep 2026531 AMAQI
27th Sep 2026522 AMAQI
27th Sep 2026523 AMAQI
27th Sep 2026494 AMAQI

22°C17/29°C

27th Sep 2026425 AMAQI
27th Sep 2026426 AMAQI
27th Sep 2026507 AMAQI
27th Sep 2026468 AMAQI
27th Sep 2026429 AMAQI
27th Sep 20265510 AMAQI
27th Sep 20266011 AMAQI
27th Sep 20265012 PMAQI
27th Sep 2026501 PMAQI
27th Sep 2026482 PMAQI
27th Sep 2026333 PMAQI
27th Sep 2026334 PMAQI
27th Sep 2026345 PMAQI
27th Sep 2026276 PMAQI
27th Sep 2026297 PMAQI
27th Sep 2026278 PMAQI
27th Sep 2026429 PMAQI
27th Sep 20264910 PMAQI
27th Sep 20263811 PMAQI
28th Sep 20263312 AMAQI
28th Sep 2026401 AMAQI
28th Sep 2026482 AMAQI
28th Sep 2026443 AMAQI
28th Sep 2026404 AMAQI

21°C17/26°C

28th Sep 2026585 AMAQI
28th Sep 2026716 AMAQI
28th Sep 2026747 AMAQI
28th Sep 2026808 AMAQI
28th Sep 2026849 AMAQI
28th Sep 20268010 AMAQI
28th Sep 20267311 AMAQI
28th Sep 20266912 PMAQI
28th Sep 2026741 PMAQI
28th Sep 2026852 PMAQI
28th Sep 2026723 PMAQI
28th Sep 2026554 PMAQI
28th Sep 2026715 PMAQI
28th Sep 2026836 PMAQI
28th Sep 2026767 PMAQI
28th Sep 2026808 PMAQI
28th Sep 2026809 PMAQI
28th Sep 20267410 PMAQI
28th Sep 20266011 PMAQI
29th Sep 20264912 AMAQI
29th Sep 2026641 AMAQI
29th Sep 2026722 AMAQI
29th Sep 2026703 AMAQI
29th Sep 2026884 AMAQI

21°C16/26°C

29th Sep 2026925 AMAQI
29th Sep 2026886 AMAQI
29th Sep 20261047 AMAQI
29th Sep 20261188 AMAQI
29th Sep 20261189 AMAQI
29th Sep 202610910 AMAQI
29th Sep 202611411 AMAQI
29th Sep 202611512 PMAQI
29th Sep 20261201 PMAQI
29th Sep 20261322 PMAQI
29th Sep 20261183 PMAQI
29th Sep 20261144 PMAQI
29th Sep 20261245 PMAQI
29th Sep 20261206 PMAQI
29th Sep 20261267 PMAQI
29th Sep 20261328 PMAQI
29th Sep 20261469 PMAQI
29th Sep 202615610 PMAQI
29th Sep 202615711 PMAQI
30th Sep 202615412 AMAQI
30th Sep 20261501 AMAQI
30th Sep 20261002 AMAQI
30th Sep 2026503 AMAQI
30th Sep 2026384 AMAQI

22°C17/27°C

30th Sep 2026325 AMAQI
30th Sep 2026306 AMAQI
30th Sep 2026277 AMAQI
30th Sep 2026258 AMAQI
30th Sep 2026179 AMAQI
30th Sep 20261710 AMAQI
30th Sep 20262711 AMAQI
30th Sep 20262512 PMAQI
30th Sep 2026341 PMAQI
30th Sep 2026272 PMAQI
30th Sep 2026233 PMAQI
30th Sep 2026254 PMAQI
30th Sep 2026215 PMAQI
30th Sep 2026276 PMAQI
30th Sep 2026257 PMAQI
30th Sep 2026258 PMAQI
30th Sep 2026339 PMAQI
30th Sep 20262110 PMAQI
30th Sep 20262511 PMAQI
1st Oct 20261912 AMAQI
1st Oct 2026231 AMAQI
1st Oct 2026292 AMAQI
1st Oct 2026213 AMAQI
1st Oct 2026214 AMAQI

17°C13/20°C

1st Oct 2026215 AMAQI
5 AM
1st Oct 2026216 AMAQI
1st Oct 2026147 AMAQI
1st Oct 2026148 AMAQI
1st Oct 2026179 AMAQI
1st Oct 20261710 AMAQI
1st Oct 20261411 AMAQI
11 AM
1st Oct 20263012 PMAQI
1st Oct 2026341 PMAQI
1st Oct 2026292 PMAQI
1st Oct 2026333 PMAQI
1st Oct 2026384 PMAQI
1st Oct 2026335 PMAQI
1st Oct 2026256 PMAQI
6 PM
1st Oct 2026337 PMAQI
1st Oct 2026388 PMAQI
1st Oct 2026239 PMAQI
1st Oct 20262510 PMAQI
1st Oct 20263411 PMAQI
11 PM
4 AM

16°C11/22°C

Day time
Avg. Highest Time
7 AM - 10 AM

88AQI

4 hours / Day
120 hours / Month
Avg. Lowest Time
5 PM

66AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 7 AM to 10 AM (Avg. 88), while the lowest AQI was between 5 PM to 5 PM (Avg. 66).
Night time
Avg. Highest Time
10 PM - 11 PM

84AQI

2 hours / Day
60 hours / Month
Avg. Lowest Time
7 PM

70AQI

1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 10 PM to 11 PM (Avg. 84), while the lowest AQI was between 7 PM to 7 PM (Avg. 70).

2026 Days Vs Air Quality

Bda, Langfang, Hebei, China

2026

24%

67

43%

117

28%

76

5%

14

Total number of days with different AQI categories in last 274 days in 2026 (91 days remaining)

Good
67 Days
Moderate
117 Days
Poor
76 Days
Unhealthy
14 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 24%

Health Risk Level:

Very high

In 2026, 24% of 274 days were within WHO’s safe air quality limits. The risk of health issues is Very high, including respiratory issues, heart disease, and stress, particularly affecting vulnerable groups.

Annual Air Quality Insights

Bda, Langfang, Hebei, China

AQI levels in 2026

AQI (US)
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 2026
-1th undefined 2026
-1th undefined 2026
-1th undefined 2026
1st January 2026
48AQI (US)
2nd January 2026
73AQI (US)
3rd January 2026
146AQI (US)
4th January 2026
164AQI (US)
5th January 2026
119AQI (US)
6th January 2026
158AQI (US)
7th January 2026
33AQI (US)
8th January 2026
108AQI (US)
9th January 2026
156AQI (US)
10th January 2026
40AQI (US)
11th January 2026
28AQI (US)
12th January 2026
106AQI (US)
13th January 2026
53AQI (US)
14th January 2026
120AQI (US)
15th January 2026
160AQI (US)
16th January 2026
130AQI (US)
17th January 2026
58AQI (US)
18th January 2026
70AQI (US)
19th January 2026
28AQI (US)
20th January 2026
23AQI (US)
21st January 2026
40AQI (US)
22nd January 2026
104AQI (US)
23rd January 2026
90AQI (US)
24th January 2026
146AQI (US)
25th January 2026
109AQI (US)
26th January 2026
97AQI (US)
27th January 2026
62AQI (US)
28th January 2026
107AQI (US)
29th January 2026
114AQI (US)
30th January 2026
152AQI (US)
31st January 2026
126AQI (US)
1st February 2026
108AQI (US)
2nd February 2026
30AQI (US)
3rd February 2026
94AQI (US)
4th February 2026
147AQI (US)
5th February 2026
88AQI (US)
6th February 2026
20AQI (US)
7th February 2026
36AQI (US)
8th February 2026
44AQI (US)
9th February 2026
94AQI (US)
10th February 2026
108AQI (US)
11th February 2026
129AQI (US)
12th February 2026
157AQI (US)
13th February 2026
163AQI (US)
14th February 2026
120AQI (US)
15th February 2026
45AQI (US)
16th February 2026
30AQI (US)
17th February 2026
109AQI (US)
18th February 2026
77AQI (US)
19th February 2026
126AQI (US)
20th February 2026
139AQI (US)
21st February 2026
117AQI (US)
22nd February 2026
61AQI (US)
23rd February 2026
40AQI (US)
24th February 2026
86AQI (US)
25th February 2026
136AQI (US)
26th February 2026
131AQI (US)
27th February 2026
77AQI (US)
28th February 2026
118AQI (US)
1st March 2026
142AQI (US)
2nd March 2026
159AQI (US)
3rd March 2026
157AQI (US)
4th March 2026
143AQI (US)
5th March 2026
128AQI (US)
6th March 2026
92AQI (US)
7th March 2026
143AQI (US)
8th March 2026
141AQI (US)
9th March 2026
68AQI (US)
10th March 2026
134AQI (US)
11th March 2026
133AQI (US)
12th March 2026
150AQI (US)
13th March 2026
138AQI (US)
14th March 2026
117AQI (US)
15th March 2026
110AQI (US)
16th March 2026
131AQI (US)
17th March 2026
151AQI (US)
18th March 2026
67AQI (US)
19th March 2026
84AQI (US)
20th March 2026
95AQI (US)
21st March 2026
110AQI (US)
22nd March 2026
109AQI (US)
23rd March 2026
146AQI (US)
24th March 2026
163AQI (US)
25th March 2026
172AQI (US)
26th March 2026
177AQI (US)
27th March 2026
87AQI (US)
28th March 2026
133AQI (US)
29th March 2026
132AQI (US)
30th March 2026
53AQI (US)
31st March 2026
78AQI (US)
1st April 2026
71AQI (US)
2nd April 2026
81AQI (US)
3rd April 2026
118AQI (US)
4th April 2026
103AQI (US)
5th April 2026
72AQI (US)
6th April 2026
22AQI (US)
7th April 2026
35AQI (US)
8th April 2026
77AQI (US)
9th April 2026
116AQI (US)
10th April 2026
104AQI (US)
11th April 2026
70AQI (US)
12th April 2026
101AQI (US)
13th April 2026
90AQI (US)
14th April 2026
138AQI (US)
15th April 2026
157AQI (US)
16th April 2026
130AQI (US)
17th April 2026
132AQI (US)
18th April 2026
118AQI (US)
19th April 2026
119AQI (US)
20th April 2026
83AQI (US)
21st April 2026
93AQI (US)
22nd April 2026
79AQI (US)
23rd April 2026
107AQI (US)
24th April 2026
108AQI (US)
25th April 2026
95AQI (US)
26th April 2026
88AQI (US)
27th April 2026
56AQI (US)
28th April 2026
64AQI (US)
29th April 2026
47AQI (US)
30th April 2026
82AQI (US)
1st May 2026
112AQI (US)
2nd May 2026
67AQI (US)
3rd May 2026
33AQI (US)
4th May 2026
59AQI (US)
5th May 2026
95AQI (US)
6th May 2026
78AQI (US)
7th May 2026
52AQI (US)
8th May 2026
77AQI (US)
9th May 2026
100AQI (US)
10th May 2026
104AQI (US)
11th May 2026
104AQI (US)
12th May 2026
111AQI (US)
13th May 2026
138AQI (US)
14th May 2026
133AQI (US)
15th May 2026
135AQI (US)
16th May 2026
77AQI (US)
17th May 2026
66AQI (US)
18th May 2026
63AQI (US)
19th May 2026
62AQI (US)
20th May 2026
70AQI (US)
21st May 2026
78AQI (US)
22nd May 2026
86AQI (US)
23rd May 2026
85AQI (US)
24th May 2026
77AQI (US)
25th May 2026
73AQI (US)
26th May 2026
55AQI (US)
27th May 2026
68AQI (US)
28th May 2026
38AQI (US)
29th May 2026
44AQI (US)
30th May 2026
64AQI (US)
31st May 2026
79AQI (US)
1st June 2026
87AQI (US)
2nd June 2026
114AQI (US)
3rd June 2026
79AQI (US)
4th June 2026
42AQI (US)
5th June 2026
31AQI (US)
6th June 2026
47AQI (US)
7th June 2026
26AQI (US)
8th June 2026
33AQI (US)
9th June 2026
24AQI (US)
10th June 2026
57AQI (US)
11th June 2026
24AQI (US)
12th June 2026
63AQI (US)
13th June 2026
70AQI (US)
14th June 2026
59AQI (US)
15th June 2026
122AQI (US)
16th June 2026
69AQI (US)
17th June 2026
43AQI (US)
18th June 2026
129AQI (US)
19th June 2026
129AQI (US)
20th June 2026
46AQI (US)
21st June 2026
31AQI (US)
22nd June 2026
58AQI (US)
23rd June 2026
79AQI (US)
24th June 2026
105AQI (US)
25th June 2026
45AQI (US)
26th June 2026
37AQI (US)
27th June 2026
58AQI (US)
28th June 2026
94AQI (US)
29th June 2026
102AQI (US)
30th June 2026
63AQI (US)
1st July 2026
61AQI (US)
2nd July 2026
98AQI (US)
3rd July 2026
96AQI (US)
4th July 2026
59AQI (US)
5th July 2026
46AQI (US)
6th July 2026
37AQI (US)
7th July 2026
60AQI (US)
8th July 2026
56AQI (US)
9th July 2026
59AQI (US)
10th July 2026
38AQI (US)
11th July 2026
58AQI (US)
12th July 2026
22AQI (US)
13th July 2026
45AQI (US)
14th July 2026
41AQI (US)
15th July 2026
43AQI (US)
16th July 2026
72AQI (US)
17th July 2026
38AQI (US)
18th July 2026
55AQI (US)
19th July 2026
82AQI (US)
20th July 2026
78AQI (US)
21st July 2026
47AQI (US)
22nd July 2026
57AQI (US)
23rd July 2026
76AQI (US)
24th July 2026
77AQI (US)
25th July 2026
93AQI (US)
26th July 2026
72AQI (US)
27th July 2026
73AQI (US)
28th July 2026
81AQI (US)
29th July 2026
49AQI (US)
30th July 2026
51AQI (US)
31st July 2026
60AQI (US)
1st August 2026
39AQI (US)
2nd August 2026
52AQI (US)
3rd August 2026
46AQI (US)
4th August 2026
36AQI (US)
5th August 2026
55AQI (US)
6th August 2026
80AQI (US)
7th August 2026
78AQI (US)
8th August 2026
27AQI (US)
9th August 2026
57AQI (US)
10th August 2026
75AQI (US)
11th August 2026
60AQI (US)
12th August 2026
35AQI (US)
13th August 2026
21AQI (US)
14th August 2026
38AQI (US)
15th August 2026
70AQI (US)
16th August 2026
40AQI (US)
17th August 2026
26AQI (US)
18th August 2026
43AQI (US)
19th August 2026
60AQI (US)
20th August 2026
95AQI (US)
21st August 2026
110AQI (US)
22nd August 2026
63AQI (US)
23rd August 2026
51AQI (US)
24th August 2026
47AQI (US)
25th August 2026
57AQI (US)
26th August 2026
30AQI (US)
27th August 2026
56AQI (US)
28th August 2026
31AQI (US)
29th August 2026
46AQI (US)
30th August 2026
38AQI (US)
31st August 2026
28AQI (US)
1st September 2026
38AQI (US)
2nd September 2026
65AQI (US)
3rd September 2026
61AQI (US)
4th September 2026
56AQI (US)
5th September 2026
83AQI (US)
6th September 2026
71AQI (US)
7th September 2026
68AQI (US)
8th September 2026
20AQI (US)
9th September 2026
31AQI (US)
10th September 2026
38AQI (US)
11th September 2026
47AQI (US)
12th September 2026
87AQI (US)
13th September 2026
72AQI (US)
14th September 2026
39AQI (US)
15th September 2026
76AQI (US)
16th September 2026
126AQI (US)
17th September 2026
135AQI (US)
18th September 2026
87AQI (US)
19th September 2026
83AQI (US)
20th September 2026
124AQI (US)
21st September 2026
86AQI (US)
22nd September 2026
101AQI (US)
23rd September 2026
146AQI (US)
24th September 2026
125AQI (US)
25th September 2026
102AQI (US)
26th September 2026
128AQI (US)
27th September 2026
44AQI (US)
28th September 2026
67AQI (US)
29th September 2026
110AQI (US)
30th September 2026
41AQI (US)
1st October 2026
25AQI (US)
2nd October 2026
3rd October 2026
4th October 2026
5th October 2026
6th October 2026
7th October 2026
8th October 2026
9th October 2026
10th October 2026
11th October 2026
12th October 2026
13th October 2026
14th October 2026
15th October 2026
16th October 2026
17th October 2026
18th October 2026
19th October 2026
20th October 2026
21st October 2026
22nd October 2026
23rd October 2026
24th October 2026
25th October 2026
26th October 2026
27th October 2026
28th October 2026
29th October 2026
30th October 2026
31st October 2026
1st November 2026
2nd November 2026
3rd November 2026
4th November 2026
5th November 2026
6th November 2026
7th November 2026
8th November 2026
9th November 2026
10th November 2026
11th November 2026
12th November 2026
13th November 2026
14th November 2026
15th November 2026
16th November 2026
17th November 2026
18th November 2026
19th November 2026
20th November 2026
21st November 2026
22nd November 2026
23rd November 2026
24th November 2026
25th November 2026
26th November 2026
27th November 2026
28th November 2026
29th November 2026
30th November 2026
1st December 2026
2nd December 2026
3rd December 2026
4th December 2026
5th December 2026
6th December 2026
7th December 2026
8th December 2026
9th December 2026
10th December 2026
11th December 2026
12th December 2026
13th December 2026
14th December 2026
15th December 2026
16th December 2026
17th December 2026
18th December 2026
19th December 2026
20th December 2026
21st December 2026
22nd December 2026
23rd December 2026
24th December 2026
25th December 2026
26th December 2026
27th December 2026
28th December 2026
29th December 2026
30th December 2026
31st December 2026

96AQI (US)

94AQI (US)

124AQI (US)

92AQI (US)

80AQI (US)

66AQI (US)

61AQI (US)

51AQI (US)

79AQI (US)

25AQI (US)

No. of days

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

202682AQI (US)

7
7
12
5
7
7
12
2
8
17
6
3
14
12
1
3
21
7
12
12
6
10
21
16
14
1
8
13
9
1
67
117
76
14

Highest AQI (US) recorded in

March

124AQI (US)

Lowest AQI (US) recorded in

October

25AQI (US)

202589AQI (US)

4
13
9
5
3
16
8
1
15
11
4
1
21
9
15
16
29
1
1
30
31
2
26
2
4
14
7
5
1
5
6
11
8
6
9
8
7
1
25
225
82
30
3

Highest AQI (US) recorded in

November

115AQI (US)

Lowest AQI (US) recorded in

August

61AQI (US)

202495AQI (US)

10
6
4
11
5
7
11
5
1
2
5
16
8
10
16
4
2
18
11
20
10
3
18
10
8
21
2
12
14
4
5
8
9
9
3
12
8
7
3
23
5
53
162
106
44
1

Highest AQI (US) recorded in

March

126AQI (US)

Lowest AQI (US) recorded in

August

64AQI (US)

2023104AQI (US)

4
12
9
4
2
6
3
8
9
2
1
7
11
10
2
1
12
10
4
2
1
1
11
16
3
2
19
9
2
21
8
2
25
4
2
14
9
5
4
12
7
8
10
5
5
5
1
5
10
6
8
2
40
151
102
56
11
1

Highest AQI (US) recorded in

March

135AQI (US)

Lowest AQI (US) recorded in

August

79AQI (US)

202296AQI (US)

2
10
9
9
3
9
5
4
3
13
11
4
9
7
1
2
20
9
1
20
9
1
18
4
1
4
13
10
1
7
10
8
6
3
12
6
9
6
16
8
1
33
150
86
34
1

Highest AQI (US) recorded in

January

113AQI (US)

Lowest AQI (US) recorded in

August

43AQI (US)

202195AQI (US)

12
10
8
8
8
9
3
5
12
12
2
2
15
11
1
1
2
20
8
1
1
23
6
15
16
5
24
5
21
4
11
13
4
3
8
9
9
4
5
13
7
6
54
179
79
44
4
2

Highest AQI (US) recorded in

March

159AQI (US)

Lowest AQI (US) recorded in

July

47AQI (US)

202096AQI (US)

2
4
6
1
3
11
6
1
2
10
6
1
16
12
1
12
18
1
2
20
9
10
16
4
4
12
8
6
16
8
6
14
10
7
24
131
87
23

Highest AQI (US) recorded in

December

111AQI (US)

Lowest AQI (US) recorded in

September

69AQI (US)

Most & Least Polluted Years Over the Last 7 Years

Most Polluted Year Recorded
2023(Avg.)
104AQI (US)
Least Polluted Year Recorded
2026(Avg.)
82AQI (US)

Bda's annual 2026 AQI (US) (82) shows an average percentage change of -14.2% (improved AQI (US)) compared to previous years: 2020 (96), 2021 (95), 2022 (96), 2023 (104), 2024 (95), 2025 (89).