Country Background
HistoryAQIPM2.5PM10COSO2NO2O3

Bidhannagar, Kolkata, West Bengal, India 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

Bidhannagar, Kolkata, West Bengal, India

2021
2022
2023
2024
2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
23rd Oct 2021
187AQI
Lowest AQI recorded on
6th Oct 2022
26AQI

Same Day Analysis (11th October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 4th highest AQI at 70 of Moderate air quality, showing improvement over 2024, 2023 and 2021 on the same day.

Download 2024 Annual Data

World Air Quality Report

Globe

Day & Night AQI Trend: 11th Oct - 12th Oct 2025

Bidhannagar, Kolkata, West Bengal, India

AQI
Day
Night
.

5 AM11th Oct 2025

5 PM

4 AM12th Oct 2025

Day time
Avg. Highest Time
12AMNaNth undefined

AQI

Avg. Lowest Time
12AMNaNth undefined

AQI

Night time
Avg. Highest Time
12AM12th Oct

115AQI

Avg. Lowest Time
11AM11th Oct

67AQI

In the last 24 hours,

Bidhannagar's AQI reached its highest point of 115 at 12 AM during the Night, while the lowest point, undefined, was recorded at 4 AM during the Night between 11th Oct and 12th Oct 2025.

Day & Night AQI Trend : Sep - Oct 2025

Bidhannagar, Kolkata, West Bengal, India

SepOct
12th - 13th13th - 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
Day
Night
12th Sep 2025805 AMAQI
12th Sep 2025676 AMAQI
12th Sep 2025907 AMAQI
12th Sep 2025668 AMAQI
12th Sep 2025849 AMAQI
12th Sep 20258210 AMAQI
12th Sep 20259511 AMAQI
12th Sep 202510412 PMAQI
12th Sep 2025781 PMAQI
12th Sep 2025832 PMAQI
12th Sep 2025843 PMAQI
12th Sep 2025924 PMAQI
12th Sep 2025835 PMAQI
12th Sep 2025866 PMAQI
12th Sep 2025847 PMAQI
12th Sep 2025808 PMAQI
12th Sep 2025869 PMAQI
12th Sep 20259010 PMAQI
12th Sep 20258211 PMAQI
13th Sep 20257812 AMAQI
13th Sep 2025921 AMAQI
13th Sep 2025882 AMAQI
13th Sep 2025863 AMAQI
13th Sep 2025844 AMAQI

29°C27/31°C

13th Sep 2025785 AMAQI
13th Sep 2025836 AMAQI
13th Sep 2025827 AMAQI
13th Sep 2025868 AMAQI
13th Sep 2025899 AMAQI
13th Sep 20256210 AMAQI
13th Sep 20259211 AMAQI
13th Sep 20257212 PMAQI
13th Sep 2025561 PMAQI
13th Sep 2025732 PMAQI
13th Sep 2025853 PMAQI
13th Sep 2025774 PMAQI
13th Sep 2025755 PMAQI
13th Sep 2025846 PMAQI
13th Sep 2025787 PMAQI
13th Sep 2025808 PMAQI
13th Sep 2025849 PMAQI
13th Sep 20258410 PMAQI
13th Sep 20259011 PMAQI
14th Sep 20258412 AMAQI
14th Sep 2025841 AMAQI
14th Sep 2025822 AMAQI
14th Sep 2025843 AMAQI
14th Sep 2025844 AMAQI

29°C26/32°C

14th Sep 2025815 AMAQI
14th Sep 2025996 AMAQI
14th Sep 2025607 AMAQI
14th Sep 2025628 AMAQI
14th Sep 2025659 AMAQI
14th Sep 20256510 AMAQI
14th Sep 20257211 AMAQI
14th Sep 20257412 PMAQI
14th Sep 2025691 PMAQI
14th Sep 2025782 PMAQI
14th Sep 2025703 PMAQI
14th Sep 2025684 PMAQI
14th Sep 2025795 PMAQI
14th Sep 2025786 PMAQI
14th Sep 2025787 PMAQI
14th Sep 2025808 PMAQI
14th Sep 2025759 PMAQI
14th Sep 20257510 PMAQI
14th Sep 20257611 PMAQI
15th Sep 20258212 AMAQI
15th Sep 2025811 AMAQI
15th Sep 2025822 AMAQI
15th Sep 2025803 AMAQI
15th Sep 2025794 AMAQI

29°C26/32°C

15th Sep 2025755 AMAQI
15th Sep 2025656 AMAQI
15th Sep 2025727 AMAQI
15th Sep 2025608 AMAQI
15th Sep 2025609 AMAQI
15th Sep 20255910 AMAQI
15th Sep 20255811 AMAQI
15th Sep 20255912 PMAQI
15th Sep 2025641 PMAQI
15th Sep 2025662 PMAQI
15th Sep 2025703 PMAQI
15th Sep 2025684 PMAQI
15th Sep 2025705 PMAQI
15th Sep 2025686 PMAQI
15th Sep 2025767 PMAQI
15th Sep 2025778 PMAQI
15th Sep 2025769 PMAQI
15th Sep 20258110 PMAQI
15th Sep 20257411 PMAQI
16th Sep 20257812 AMAQI
16th Sep 2025741 AMAQI
16th Sep 2025742 AMAQI
16th Sep 2025753 AMAQI
16th Sep 2025764 AMAQI

27°C26/28°C

16th Sep 2025705 AMAQI
16th Sep 2025606 AMAQI
16th Sep 2025567 AMAQI
16th Sep 2025768 AMAQI
16th Sep 2025589 AMAQI
16th Sep 20255710 AMAQI
16th Sep 20255711 AMAQI
16th Sep 20256012 PMAQI
16th Sep 2025681 PMAQI
16th Sep 2025632 PMAQI
16th Sep 2025623 PMAQI
16th Sep 2025704 PMAQI
16th Sep 2025695 PMAQI
16th Sep 2025736 PMAQI
16th Sep 2025757 PMAQI
16th Sep 2025768 PMAQI
16th Sep 2025739 PMAQI
16th Sep 20257210 PMAQI
16th Sep 20257411 PMAQI
17th Sep 20257412 AMAQI
17th Sep 2025681 AMAQI
17th Sep 2025692 AMAQI
17th Sep 2025693 AMAQI
17th Sep 2025704 AMAQI

27°C25/31°C

17th Sep 2025705 AMAQI
17th Sep 2025676 AMAQI
17th Sep 2025667 AMAQI
17th Sep 2025688 AMAQI
17th Sep 2025699 AMAQI
17th Sep 20256610 AMAQI
17th Sep 20256611 AMAQI
17th Sep 20257012 PMAQI
17th Sep 2025641 PMAQI
17th Sep 2025732 PMAQI
17th Sep 2025683 PMAQI
17th Sep 2025694 PMAQI
17th Sep 2025635 PMAQI
17th Sep 2025676 PMAQI
17th Sep 2025687 PMAQI
17th Sep 2025708 PMAQI
17th Sep 2025699 PMAQI
17th Sep 20257310 PMAQI
17th Sep 20257611 PMAQI
18th Sep 20257512 AMAQI
18th Sep 2025701 AMAQI
18th Sep 2025702 AMAQI
18th Sep 2025693 AMAQI
18th Sep 2025694 AMAQI

28°C26/33°C

18th Sep 2025705 AMAQI
18th Sep 2025676 AMAQI
18th Sep 2025687 AMAQI
18th Sep 2025948 AMAQI
18th Sep 2025689 AMAQI
18th Sep 20256610 AMAQI
18th Sep 20257011 AMAQI
18th Sep 20257612 PMAQI
18th Sep 2025701 PMAQI
18th Sep 2025712 PMAQI
18th Sep 2025753 PMAQI
18th Sep 2025704 PMAQI
18th Sep 2025715 PMAQI
18th Sep 2025696 PMAQI
18th Sep 2025737 PMAQI
18th Sep 2025708 PMAQI
18th Sep 2025729 PMAQI
18th Sep 20257310 PMAQI
18th Sep 20257711 PMAQI
19th Sep 20257812 AMAQI
19th Sep 2025701 AMAQI
19th Sep 2025702 AMAQI
19th Sep 2025703 AMAQI
19th Sep 2025714 AMAQI

29°C26/33°C

19th Sep 2025725 AMAQI
19th Sep 2025716 AMAQI
19th Sep 2025787 AMAQI
19th Sep 2025768 AMAQI
19th Sep 2025809 AMAQI
19th Sep 20258210 AMAQI
19th Sep 20258411 AMAQI
19th Sep 20258912 PMAQI
19th Sep 2025981 PMAQI
19th Sep 2025832 PMAQI
19th Sep 2025793 PMAQI
19th Sep 2025994 PMAQI
19th Sep 2025795 PMAQI
19th Sep 2025836 PMAQI
19th Sep 2025907 PMAQI
19th Sep 2025918 PMAQI
19th Sep 2025899 PMAQI
19th Sep 20259010 PMAQI
19th Sep 20259111 PMAQI
20th Sep 20258912 AMAQI
20th Sep 2025781 AMAQI
20th Sep 2025762 AMAQI
20th Sep 2025773 AMAQI
20th Sep 2025774 AMAQI

29°C26/34°C

20th Sep 2025785 AMAQI
20th Sep 2025936 AMAQI
20th Sep 2025807 AMAQI
20th Sep 20251008 AMAQI
20th Sep 2025929 AMAQI
20th Sep 202510210 AMAQI
20th Sep 202511111 AMAQI
20th Sep 202511012 PMAQI
20th Sep 2025941 PMAQI
20th Sep 2025982 PMAQI
20th Sep 2025963 PMAQI
20th Sep 2025814 PMAQI
20th Sep 2025805 PMAQI
20th Sep 2025826 PMAQI
20th Sep 2025847 PMAQI
20th Sep 2025938 PMAQI
20th Sep 2025849 PMAQI
20th Sep 20258910 PMAQI
20th Sep 20258811 PMAQI
21st Sep 20259312 AMAQI
21st Sep 2025871 AMAQI
21st Sep 2025872 AMAQI
21st Sep 2025903 AMAQI
21st Sep 2025874 AMAQI

30°C27/34°C

21st Sep 2025925 AMAQI
21st Sep 20251186 AMAQI
21st Sep 20251057 AMAQI
21st Sep 20251228 AMAQI
21st Sep 20251179 AMAQI
21st Sep 202511810 AMAQI
21st Sep 202511411 AMAQI
21st Sep 202512612 PMAQI
21st Sep 20251201 PMAQI
21st Sep 20251222 PMAQI
21st Sep 20251203 PMAQI
21st Sep 20251094 PMAQI
21st Sep 20251035 PMAQI
21st Sep 20251086 PMAQI
21st Sep 20251117 PMAQI
21st Sep 20251208 PMAQI
21st Sep 20251049 PMAQI
21st Sep 202510210 PMAQI
21st Sep 202510211 PMAQI
22nd Sep 202511312 AMAQI
22nd Sep 20251081 AMAQI
22nd Sep 20251032 AMAQI
22nd Sep 20251023 AMAQI
22nd Sep 20251024 AMAQI

29°C26/34°C

22nd Sep 2025965 AMAQI
22nd Sep 2025826 AMAQI
22nd Sep 2025907 AMAQI
22nd Sep 20251068 AMAQI
22nd Sep 2025969 AMAQI
22nd Sep 202510210 AMAQI
22nd Sep 202510811 AMAQI
22nd Sep 202511012 PMAQI
22nd Sep 20251261 PMAQI
22nd Sep 20251192 PMAQI
22nd Sep 2025973 PMAQI
22nd Sep 2025854 PMAQI
22nd Sep 2025885 PMAQI
22nd Sep 2025856 PMAQI
22nd Sep 2025837 PMAQI
22nd Sep 2025898 PMAQI
22nd Sep 2025869 PMAQI
22nd Sep 20258310 PMAQI
22nd Sep 20259211 PMAQI
23rd Sep 20259012 AMAQI
23rd Sep 2025991 AMAQI
23rd Sep 20251052 AMAQI
23rd Sep 20251003 AMAQI
23rd Sep 20251054 AMAQI

27°C26/29°C

23rd Sep 20251025 AMAQI
23rd Sep 2025656 AMAQI
23rd Sep 2025647 AMAQI
23rd Sep 2025518 AMAQI
23rd Sep 2025539 AMAQI
23rd Sep 20255210 AMAQI
23rd Sep 20255411 AMAQI
23rd Sep 20256012 PMAQI
23rd Sep 2025651 PMAQI
23rd Sep 2025622 PMAQI
23rd Sep 2025603 PMAQI
23rd Sep 2025694 PMAQI
23rd Sep 2025765 PMAQI
23rd Sep 2025756 PMAQI
23rd Sep 2025797 PMAQI
23rd Sep 2025788 PMAQI
23rd Sep 2025869 PMAQI
23rd Sep 20258610 PMAQI
23rd Sep 20258411 PMAQI
24th Sep 20258212 AMAQI
24th Sep 2025921 AMAQI
24th Sep 2025832 AMAQI
24th Sep 2025843 AMAQI
24th Sep 2025864 AMAQI

27°C25/31°C

24th Sep 2025845 AMAQI
24th Sep 2025846 AMAQI
24th Sep 2025797 AMAQI
24th Sep 2025808 AMAQI
24th Sep 2025769 AMAQI
24th Sep 20257010 AMAQI
24th Sep 20256611 AMAQI
24th Sep 20256312 PMAQI
24th Sep 2025591 PMAQI
24th Sep 2025622 PMAQI
24th Sep 2025663 PMAQI
24th Sep 2025744 PMAQI
24th Sep 2025825 PMAQI
24th Sep 2025796 PMAQI
24th Sep 2025767 PMAQI
24th Sep 2025768 PMAQI
24th Sep 2025769 PMAQI
24th Sep 20258010 PMAQI
24th Sep 20258211 PMAQI
25th Sep 20258312 AMAQI
25th Sep 2025831 AMAQI
25th Sep 2025822 AMAQI
25th Sep 2025823 AMAQI
25th Sep 2025834 AMAQI

28°C25/32°C

25th Sep 2025785 AMAQI
25th Sep 2025706 AMAQI
25th Sep 2025657 AMAQI
25th Sep 2025768 AMAQI
25th Sep 2025749 AMAQI
25th Sep 20257010 AMAQI
25th Sep 20255811 AMAQI
25th Sep 20256512 PMAQI
25th Sep 2025671 PMAQI
25th Sep 2025582 PMAQI
25th Sep 2025493 PMAQI
25th Sep 2025454 PMAQI
25th Sep 2025465 PMAQI
25th Sep 2025476 PMAQI
25th Sep 2025527 PMAQI
25th Sep 2025568 PMAQI
25th Sep 2025529 PMAQI
25th Sep 20254410 PMAQI
25th Sep 20254111 PMAQI
26th Sep 20254312 AMAQI
26th Sep 2025521 AMAQI
26th Sep 2025542 AMAQI
26th Sep 2025523 AMAQI
26th Sep 2025454 AMAQI

29°C26/33°C

26th Sep 2025455 AMAQI
26th Sep 2025466 AMAQI
26th Sep 2025467 AMAQI
26th Sep 2025548 AMAQI
26th Sep 2025559 AMAQI
26th Sep 20256010 AMAQI
26th Sep 20255111 AMAQI
26th Sep 20253812 PMAQI
26th Sep 2025341 PMAQI
26th Sep 2025322 PMAQI
26th Sep 2025313 PMAQI
26th Sep 2025344 PMAQI
26th Sep 2025345 PMAQI
26th Sep 2025296 PMAQI
26th Sep 2025337 PMAQI
26th Sep 2025498 PMAQI
26th Sep 2025499 PMAQI
26th Sep 20255010 PMAQI
26th Sep 20254911 PMAQI
27th Sep 20255012 AMAQI
27th Sep 2025501 AMAQI
27th Sep 2025492 AMAQI
27th Sep 2025523 AMAQI
27th Sep 2025534 AMAQI

29°C26/33°C

27th Sep 2025525 AMAQI
27th Sep 2025506 AMAQI
27th Sep 2025487 AMAQI
27th Sep 2025448 AMAQI
27th Sep 2025449 AMAQI
27th Sep 20254410 AMAQI
27th Sep 20254011 AMAQI
27th Sep 20253912 PMAQI
27th Sep 2025461 PMAQI
27th Sep 2025502 PMAQI
27th Sep 2025503 PMAQI
27th Sep 2025514 PMAQI
27th Sep 2025525 PMAQI
27th Sep 2025526 PMAQI
27th Sep 2025537 PMAQI
27th Sep 2025558 PMAQI
27th Sep 2025569 PMAQI
27th Sep 20255110 PMAQI
27th Sep 20255211 PMAQI
28th Sep 20255312 AMAQI
28th Sep 2025481 AMAQI
28th Sep 2025432 AMAQI
28th Sep 2025433 AMAQI
28th Sep 2025444 AMAQI

29°C26/33°C

28th Sep 2025445 AMAQI
28th Sep 2025466 AMAQI
28th Sep 2025477 AMAQI
28th Sep 2025558 AMAQI
28th Sep 2025589 AMAQI
28th Sep 20255710 AMAQI
28th Sep 20255411 AMAQI
28th Sep 20255512 PMAQI
28th Sep 2025541 PMAQI
28th Sep 2025482 PMAQI
28th Sep 2025413 PMAQI
28th Sep 2025394 PMAQI
28th Sep 2025395 PMAQI
28th Sep 2025396 PMAQI
28th Sep 2025477 PMAQI
28th Sep 2025548 PMAQI
28th Sep 2025529 PMAQI
28th Sep 20255010 PMAQI
28th Sep 20255011 PMAQI
29th Sep 20254912 AMAQI
29th Sep 2025471 AMAQI
29th Sep 2025502 AMAQI
29th Sep 2025503 AMAQI
29th Sep 2025614 AMAQI

29°C26/33°C

29th Sep 2025605 AMAQI
29th Sep 2025556 AMAQI
29th Sep 2025547 AMAQI
29th Sep 2025508 AMAQI
29th Sep 2025389 AMAQI
29th Sep 20253810 AMAQI
29th Sep 20253811 AMAQI
29th Sep 20254712 PMAQI
29th Sep 2025541 PMAQI
29th Sep 2025482 PMAQI
29th Sep 2025483 PMAQI
29th Sep 2025434 PMAQI
29th Sep 2025535 PMAQI
29th Sep 2025636 PMAQI
29th Sep 2025707 PMAQI
29th Sep 2025688 PMAQI
29th Sep 2025699 PMAQI
29th Sep 20256910 PMAQI
29th Sep 20257911 PMAQI
30th Sep 20258312 AMAQI
30th Sep 2025761 AMAQI
30th Sep 2025802 AMAQI
30th Sep 2025653 AMAQI
30th Sep 2025714 AMAQI

29°C26/33°C

30th Sep 2025715 AMAQI
30th Sep 2025696 AMAQI
30th Sep 2025677 AMAQI
30th Sep 2025638 AMAQI
30th Sep 2025829 AMAQI
30th Sep 20257810 AMAQI
30th Sep 20258011 AMAQI
30th Sep 20258412 PMAQI
30th Sep 2025881 PMAQI
30th Sep 2025792 PMAQI
30th Sep 2025753 PMAQI
30th Sep 2025784 PMAQI
30th Sep 2025845 PMAQI
30th Sep 2025756 PMAQI
30th Sep 2025827 PMAQI
30th Sep 2025808 PMAQI
30th Sep 2025809 PMAQI
30th Sep 20258910 PMAQI
30th Sep 20259111 PMAQI
1st Oct 20257412 AMAQI
1st Oct 2025701 AMAQI
1st Oct 2025682 AMAQI
1st Oct 2025653 AMAQI
1st Oct 2025614 AMAQI

30°C27/35°C

1st Oct 2025645 AMAQI
1st Oct 2025606 AMAQI
1st Oct 2025597 AMAQI
1st Oct 2025508 AMAQI
1st Oct 2025549 AMAQI
1st Oct 20255310 AMAQI
1st Oct 20255511 AMAQI
1st Oct 20255612 PMAQI
1st Oct 2025561 PMAQI
1st Oct 2025562 PMAQI
1st Oct 2025523 PMAQI
1st Oct 2025524 PMAQI
1st Oct 2025515 PMAQI
1st Oct 2025536 PMAQI
1st Oct 2025537 PMAQI
1st Oct 2025438 PMAQI
1st Oct 2025409 PMAQI
1st Oct 20253810 PMAQI
1st Oct 20253511 PMAQI
2nd Oct 20254212 AMAQI
2nd Oct 2025421 AMAQI
2nd Oct 2025392 AMAQI
2nd Oct 2025373 AMAQI
2nd Oct 2025344 AMAQI

30°C27/34°C

2nd Oct 2025335 AMAQI
2nd Oct 2025326 AMAQI
2nd Oct 2025307 AMAQI
2nd Oct 2025328 AMAQI
2nd Oct 2025329 AMAQI
2nd Oct 20253410 AMAQI
2nd Oct 20253111 AMAQI
2nd Oct 20254312 PMAQI
2nd Oct 2025361 PMAQI
2nd Oct 2025342 PMAQI
2nd Oct 2025373 PMAQI
2nd Oct 2025364 PMAQI
2nd Oct 2025375 PMAQI
2nd Oct 2025366 PMAQI
2nd Oct 2025357 PMAQI
2nd Oct 2025358 PMAQI
2nd Oct 2025369 PMAQI
2nd Oct 20253810 PMAQI
2nd Oct 20253711 PMAQI
3rd Oct 20253712 AMAQI
3rd Oct 2025381 AMAQI
3rd Oct 2025382 AMAQI
3rd Oct 2025393 AMAQI
3rd Oct 2025394 AMAQI

26°C25/27°C

3rd Oct 2025425 AMAQI
3rd Oct 2025436 AMAQI
3rd Oct 2025397 AMAQI
3rd Oct 2025408 AMAQI
3rd Oct 2025399 AMAQI
3rd Oct 20254410 AMAQI
3rd Oct 20254711 AMAQI
3rd Oct 20254812 PMAQI
3rd Oct 2025461 PMAQI
3rd Oct 2025512 PMAQI
3rd Oct 2025523 PMAQI
3rd Oct 2025564 PMAQI
3rd Oct 2025335 PMAQI
3rd Oct 2025586 PMAQI
3rd Oct 2025737 PMAQI
3rd Oct 2025698 PMAQI
3rd Oct 2025649 PMAQI
3rd Oct 20256310 PMAQI
3rd Oct 20256311 PMAQI
4th Oct 20256212 AMAQI
4th Oct 2025661 AMAQI
4th Oct 2025742 AMAQI
4th Oct 2025703 AMAQI
4th Oct 2025744 AMAQI

27°C25/29°C

4th Oct 2025725 AMAQI
4th Oct 2025666 AMAQI
4th Oct 2025687 AMAQI
4th Oct 2025658 AMAQI
4th Oct 2025589 AMAQI
4th Oct 20255810 AMAQI
4th Oct 20256311 AMAQI
4th Oct 20256512 PMAQI
4th Oct 2025701 PMAQI
4th Oct 2025652 PMAQI
4th Oct 2025623 PMAQI
4th Oct 2025684 PMAQI
4th Oct 2025725 PMAQI
4th Oct 2025756 PMAQI
4th Oct 2025727 PMAQI
4th Oct 2025778 PMAQI
4th Oct 2025799 PMAQI
4th Oct 20257110 PMAQI
4th Oct 20256811 PMAQI
5th Oct 20257012 AMAQI
5th Oct 2025691 AMAQI
5th Oct 2025642 AMAQI
5th Oct 2025643 AMAQI
5th Oct 2025724 AMAQI

28°C25/30°C

5th Oct 2025685 AMAQI
5th Oct 2025696 AMAQI
5th Oct 2025607 AMAQI
5th Oct 2025558 AMAQI
5th Oct 2025539 AMAQI
5th Oct 20255010 AMAQI
5th Oct 20256511 AMAQI
5th Oct 20258212 PMAQI
5th Oct 2025791 PMAQI
5th Oct 2025542 PMAQI
5th Oct 2025503 PMAQI
5th Oct 2025524 PMAQI
5th Oct 2025605 PMAQI
5th Oct 2025626 PMAQI
5th Oct 2025477 PMAQI
5th Oct 2025428 PMAQI
5th Oct 2025489 PMAQI
5th Oct 20255410 PMAQI
5th Oct 20254911 PMAQI
6th Oct 20255712 AMAQI
6th Oct 2025631 AMAQI
6th Oct 2025582 AMAQI
6th Oct 2025563 AMAQI
6th Oct 2025574 AMAQI

28°C26/31°C

6th Oct 2025585 AMAQI
6th Oct 2025716 AMAQI
6th Oct 2025807 AMAQI
6th Oct 2025808 AMAQI
6th Oct 2025789 AMAQI
6th Oct 20257110 AMAQI
6th Oct 20256211 AMAQI
6th Oct 20256512 PMAQI
6th Oct 2025711 PMAQI
6th Oct 2025732 PMAQI
6th Oct 2025813 PMAQI
6th Oct 2025874 PMAQI
6th Oct 2025895 PMAQI
6th Oct 2025956 PMAQI
6th Oct 2025997 PMAQI
6th Oct 20251108 PMAQI
6th Oct 20251069 PMAQI
6th Oct 202510610 PMAQI

28°C25/31°C

7th Oct 20251065 PMAQI
7th Oct 2025976 PMAQI
7th Oct 2025907 PMAQI
7th Oct 2025878 PMAQI
7th Oct 2025779 PMAQI
7th Oct 20257210 PMAQI
7th Oct 20257411 PMAQI
8th Oct 20257712 AMAQI
8th Oct 2025801 AMAQI
8th Oct 2025912 AMAQI
8th Oct 2025933 AMAQI
8th Oct 2025904 AMAQI

28°C25/31°C

8th Oct 2025895 AMAQI
8th Oct 2025906 AMAQI
8th Oct 2025967 AMAQI
8th Oct 20251088 AMAQI
8th Oct 20251079 AMAQI
8th Oct 202510010 AMAQI
8th Oct 20259511 AMAQI
8th Oct 20259212 PMAQI
8th Oct 2025971 PMAQI
8th Oct 20251132 PMAQI
8th Oct 20251103 PMAQI
8th Oct 20251104 PMAQI
8th Oct 20251095 PMAQI
8th Oct 20251216 PMAQI
8th Oct 20251037 PMAQI
8th Oct 2025968 PMAQI
8th Oct 2025869 PMAQI
8th Oct 20258210 PMAQI
8th Oct 20258711 PMAQI
9th Oct 20258612 AMAQI
9th Oct 2025811 AMAQI
9th Oct 2025872 AMAQI
9th Oct 2025903 AMAQI
9th Oct 2025954 AMAQI

28°C25/31°C

9th Oct 2025995 AMAQI
9th Oct 20251006 AMAQI
9th Oct 20251097 AMAQI
9th Oct 20251138 AMAQI
9th Oct 20251129 AMAQI
9th Oct 202512410 AMAQI
9th Oct 202513211 AMAQI
9th Oct 202513212 PMAQI
9th Oct 20251391 PMAQI
9th Oct 20251372 PMAQI
9th Oct 20251303 PMAQI
9th Oct 20251224 PMAQI
9th Oct 20251155 PMAQI
9th Oct 20251046 PMAQI
9th Oct 20251077 PMAQI
9th Oct 2025968 PMAQI
9th Oct 20251059 PMAQI
9th Oct 20259310 PMAQI
9th Oct 20259911 PMAQI
10th Oct 202510312 AMAQI
10th Oct 20251091 AMAQI
10th Oct 20251202 AMAQI
10th Oct 20251173 AMAQI
10th Oct 20251144 AMAQI

28°C25/32°C

10th Oct 20251055 AMAQI
10th Oct 20251256 AMAQI
10th Oct 20251357 AMAQI
10th Oct 20251288 AMAQI
10th Oct 20251239 AMAQI
10th Oct 202512210 AMAQI
10th Oct 202512011 AMAQI
10th Oct 202511612 PMAQI
10th Oct 20251091 PMAQI
10th Oct 2025932 PMAQI
10th Oct 20251053 PMAQI
10th Oct 2025984 PMAQI
10th Oct 2025915 PMAQI
10th Oct 2025836 PMAQI
10th Oct 2025777 PMAQI
10th Oct 2025718 PMAQI
10th Oct 2025729 PMAQI
10th Oct 20257210 PMAQI
10th Oct 20256811 PMAQI
11th Oct 20256912 AMAQI
11th Oct 2025651 AMAQI
11th Oct 2025642 AMAQI
11th Oct 2025623 AMAQI
11th Oct 2025624 AMAQI

27°C25/31°C

11th Oct 2025715 AMAQI
11th Oct 2025726 AMAQI
11th Oct 2025777 AMAQI
11th Oct 2025768 AMAQI
11th Oct 2025729 AMAQI
11th Oct 20256910 AMAQI
11th Oct 20256711 AMAQI
11th Oct 20257612 PMAQI
11th Oct 2025801 PMAQI
11th Oct 2025952 PMAQI
11th Oct 20251063 PMAQI
11th Oct 20251034 PMAQI
11th Oct 2025905 PMAQI
11th Oct 20251016 PMAQI
11th Oct 2025957 PMAQI
11th Oct 2025988 PMAQI
11th Oct 20251079 PMAQI
11th Oct 202511210 PMAQI
11th Oct 202510711 PMAQI
12th Oct 202511512 AMAQI
12th Oct 20251021 AMAQI
12th Oct 2025922 AMAQI

--°C/°C

5 AM
11 AM
5 PM
11 PM
4 AM

--°C/°C

Day time
Avg. Highest Time
8 AM - 5 PM

73AQI

10 hours / Day
300 hours / Month
Avg. Lowest Time
5 AM - 7 AM

72AQI

3 hours / Day
90 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 8 AM to 5 PM (Avg. 73), while the lowest AQI was between 5 AM to 7 AM (Avg. 72).
Night time
Avg. Highest Time
12 AM - 11 PM

75AQI

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

75AQI

11 hours / Day
330 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 11 PM (Avg. 75), while the lowest AQI was between 12 AM to 11 PM (Avg. 75).

2025 Days Vs Air Quality

Bidhannagar, Kolkata, West Bengal, India

2025

2%

5

63%

178

21%

60

14%

41

Total number of days with different AQI categories in last 284 days in 2025 (81 days remaining)

Good
5 Days
Moderate
178 Days
Poor
60 Days
Unhealthy
41 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 2%

Health Risk Level:

Extreme

In 2025, 2% of 284 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

Bidhannagar, Kolkata, West Bengal, India

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
181AQI
2nd January 2025
166AQI
3rd January 2025
183AQI
4th January 2025
179AQI
5th January 2025
175AQI
6th January 2025
170AQI
7th January 2025
176AQI
8th January 2025
150AQI
9th January 2025
161AQI
10th January 2025
177AQI
11th January 2025
185AQI
12th January 2025
184AQI
13th January 2025
188AQI
14th January 2025
185AQI
15th January 2025
163AQI
16th January 2025
171AQI
17th January 2025
165AQI
18th January 2025
167AQI
19th January 2025
158AQI
20th January 2025
167AQI
21st January 2025
172AQI
22nd January 2025
173AQI
23rd January 2025
181AQI
24th January 2025
182AQI
25th January 2025
180AQI
26th January 2025
155AQI
27th January 2025
168AQI
28th January 2025
170AQI
29th January 2025
161AQI
30th January 2025
148AQI
31st January 2025
143AQI
1st February 2025
137AQI
2nd February 2025
158AQI
3rd February 2025
154AQI
4th February 2025
153AQI
5th February 2025
169AQI
6th February 2025
155AQI
7th February 2025
142AQI
8th February 2025
150AQI
9th February 2025
158AQI
10th February 2025
162AQI
11th February 2025
150AQI
12th February 2025
144AQI
13th February 2025
136AQI
14th February 2025
152AQI
15th February 2025
155AQI
16th February 2025
136AQI
17th February 2025
125AQI
18th February 2025
129AQI
19th February 2025
131AQI
20th February 2025
126AQI
21st February 2025
130AQI
22nd February 2025
126AQI
23rd February 2025
134AQI
24th February 2025
141AQI
25th February 2025
154AQI
26th February 2025
151AQI
27th February 2025
161AQI
28th February 2025
157AQI
1st March 2025
127AQI
2nd March 2025
138AQI
3rd March 2025
136AQI
4th March 2025
128AQI
5th March 2025
144AQI
6th March 2025
126AQI
7th March 2025
146AQI
8th March 2025
134AQI
9th March 2025
133AQI
10th March 2025
128AQI
11th March 2025
111AQI
12th March 2025
124AQI
13th March 2025
103AQI
14th March 2025
113AQI
15th March 2025
101AQI
16th March 2025
99AQI
17th March 2025
103AQI
18th March 2025
103AQI
19th March 2025
129AQI
20th March 2025
101AQI
21st March 2025
112AQI
22nd March 2025
83AQI
23rd March 2025
112AQI
24th March 2025
126AQI
25th March 2025
138AQI
26th March 2025
106AQI
27th March 2025
122AQI
28th March 2025
129AQI
29th March 2025
141AQI
30th March 2025
130AQI
31st March 2025
113AQI
1st April 2025
103AQI
2nd April 2025
89AQI
3rd April 2025
90AQI
4th April 2025
108AQI
5th April 2025
104AQI
6th April 2025
92AQI
7th April 2025
80AQI
8th April 2025
75AQI
9th April 2025
68AQI
10th April 2025
67AQI
11th April 2025
67AQI
12th April 2025
73AQI
13th April 2025
75AQI
14th April 2025
80AQI
15th April 2025
85AQI
16th April 2025
90AQI
17th April 2025
74AQI
18th April 2025
71AQI
19th April 2025
91AQI
20th April 2025
95AQI
21st April 2025
88AQI
22nd April 2025
84AQI
23rd April 2025
96AQI
24th April 2025
85AQI
25th April 2025
81AQI
26th April 2025
68AQI
27th April 2025
85AQI
28th April 2025
98AQI
29th April 2025
75AQI
30th April 2025
82AQI
1st May 2025
78AQI
2nd May 2025
75AQI
3rd May 2025
77AQI
4th May 2025
77AQI
5th May 2025
82AQI
6th May 2025
84AQI
7th May 2025
90AQI
8th May 2025
89AQI
9th May 2025
90AQI
10th May 2025
102AQI
11th May 2025
104AQI
12th May 2025
95AQI
13th May 2025
87AQI
14th May 2025
89AQI
15th May 2025
79AQI
16th May 2025
80AQI
17th May 2025
74AQI
18th May 2025
65AQI
19th May 2025
60AQI
20th May 2025
60AQI
21st May 2025
63AQI
22nd May 2025
72AQI
23rd May 2025
63AQI
24th May 2025
67AQI
25th May 2025
62AQI
26th May 2025
58AQI
27th May 2025
58AQI
28th May 2025
59AQI
29th May 2025
60AQI
30th May 2025
64AQI
31st May 2025
79AQI
1st June 2025
88AQI
2nd June 2025
108AQI
3rd June 2025
96AQI
4th June 2025
83AQI
5th June 2025
84AQI
6th June 2025
89AQI
7th June 2025
103AQI
8th June 2025
106AQI
9th June 2025
104AQI
10th June 2025
103AQI
11th June 2025
90AQI
12th June 2025
73AQI
13th June 2025
68AQI
14th June 2025
71AQI
15th June 2025
68AQI
16th June 2025
62AQI
17th June 2025
63AQI
18th June 2025
63AQI
19th June 2025
63AQI
20th June 2025
64AQI
21st June 2025
73AQI
22nd June 2025
83AQI
23rd June 2025
77AQI
24th June 2025
69AQI
25th June 2025
68AQI
26th June 2025
62AQI
27th June 2025
60AQI
28th June 2025
67AQI
29th June 2025
66AQI
30th June 2025
69AQI
1st July 2025
67AQI
2nd July 2025
62AQI
3rd July 2025
62AQI
4th July 2025
67AQI
5th July 2025
69AQI
6th July 2025
67AQI
7th July 2025
64AQI
8th July 2025
60AQI
9th July 2025
62AQI
10th July 2025
61AQI
11th July 2025
64AQI
12th July 2025
66AQI
13th July 2025
69AQI
14th July 2025
63AQI
15th July 2025
65AQI
16th July 2025
67AQI
17th July 2025
67AQI
18th July 2025
68AQI
19th July 2025
67AQI
20th July 2025
67AQI
21st July 2025
68AQI
22nd July 2025
63AQI
23rd July 2025
62AQI
24th July 2025
63AQI
25th July 2025
60AQI
26th July 2025
55AQI
27th July 2025
59AQI
28th July 2025
63AQI
29th July 2025
64AQI
30th July 2025
53AQI
31st July 2025
65AQI
1st August 2025
72AQI
2nd August 2025
79AQI
3rd August 2025
76AQI
4th August 2025
81AQI
5th August 2025
79AQI
6th August 2025
79AQI
7th August 2025
86AQI
8th August 2025
75AQI
9th August 2025
60AQI
10th August 2025
59AQI
11th August 2025
64AQI
12th August 2025
77AQI
13th August 2025
64AQI
14th August 2025
62AQI
15th August 2025
59AQI
16th August 2025
61AQI
17th August 2025
59AQI
18th August 2025
57AQI
19th August 2025
58AQI
20th August 2025
62AQI
21st August 2025
65AQI
22nd August 2025
68AQI
23rd August 2025
67AQI
24th August 2025
64AQI
25th August 2025
69AQI
26th August 2025
68AQI
27th August 2025
68AQI
28th August 2025
66AQI
29th August 2025
65AQI
30th August 2025
67AQI
31st August 2025
72AQI
1st September 2025
82AQI
2nd September 2025
69AQI
3rd September 2025
66AQI
4th September 2025
59AQI
5th September 2025
68AQI
6th September 2025
77AQI
7th September 2025
78AQI
8th September 2025
86AQI
9th September 2025
88AQI
10th September 2025
90AQI
11th September 2025
93AQI
12th September 2025
86AQI
13th September 2025
81AQI
14th September 2025
77AQI
15th September 2025
72AQI
16th September 2025
69AQI
17th September 2025
69AQI
18th September 2025
71AQI
19th September 2025
82AQI
20th September 2025
88AQI
21st September 2025
106AQI
22nd September 2025
97AQI
23rd September 2025
78AQI
24th September 2025
78AQI
25th September 2025
61AQI
26th September 2025
43AQI
27th September 2025
50AQI
28th September 2025
49AQI
29th September 2025
55AQI
30th September 2025
79AQI
1st October 2025
59AQI
2nd October 2025
36AQI
3rd October 2025
47AQI
4th October 2025
68AQI
5th October 2025
62AQI
6th October 2025
69AQI
7th October 2025
86AQI
8th October 2025
93AQI
9th October 2025
104AQI
10th October 2025
102AQI
11th October 2025
70AQI
12th October 2025
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

170AQI

146AQI

121AQI

84AQI

76AQI

78AQI

64AQI

68AQI

75AQI

72AQI

No. of days

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

202597AQI

3
28
15
13
2
29
27
3
29
2
25
5
31
31
3
26
1
2
7
2
5
178
60
41

Highest AQI recorded in

January

170AQI

Lowest AQI recorded in

July

64AQI

2024116AQI

1
9
20
1
6
16
7
9
14
8
6
22
2
10
20
1
4
26
10
21
1
25
5
8
15
6
1
18
12
1
1
11
17
1
3
28
33
141
81
82
28
1

Highest AQI recorded in

January

214AQI

Lowest AQI recorded in

July

60AQI

2023117AQI

5
23
3
17
11
10
18
3
9
15
1
1
25
2
6
21
3
21
7
1
16
8
4
5
21
3
1
8
11
12
5
19
5
2
4
21
3
34
119
91
95
11

Highest AQI recorded in

November

178AQI

Lowest AQI recorded in

July

41AQI

2022108AQI

21
1
11
15
3
13
15
28
2
3
25
3
9
19
28
3
10
2
9
19
7
9
3
8
5
21
2
1
15
15
66
109
38
95
17

Highest AQI recorded in

December

199AQI

Lowest AQI recorded in

July

36AQI

2021121AQI

27
4
4
24
3
9
16
11
17
2
4
26
26
4
6
19
6
4
13
14
6
20
4
8
6
17
1
8
20
1
1
1
5
22
2
21
128
77
128
7

Highest AQI recorded in

January

180AQI

Lowest AQI recorded in

May

69AQI

202081AQI

1
5
5
4
19
5
1
1
11
19
11
18
21
10
20
10
21
8
1
10
11
9
1
2
1
6
16
27
4
101
101
26
45
5

Highest AQI recorded in

December

189AQI

Lowest AQI recorded in

August

42AQI

Most & Least Polluted Years Over the Last 6 Years

Most Polluted Year Recorded
2021(Avg.)
121AQI
Least Polluted Year Recorded
2020(Avg.)
81AQI

Bidhannagar's annual 2025 AQI (97) shows an average percentage change of -9.1% (improved AQI) compared to previous years: 2020 (81), 2021 (121), 2022 (108), 2023 (117), 2024 (116).