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HistoryAQIPM2.5PM10COSO2NO2O3

Chetla, 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

Chetla, Kolkata, West Bengal, India

2021
2022
2023
2024
2025
AQI
.
Days

AQI Trends: Highest and Lowest

Highest AQI recorded on
20th Oct 2022
173AQI
Lowest AQI recorded on
6th Oct 2022
33AQI

Same Day Analysis (12th October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 122 of Poor air quality, showing improvement over 2023 and 2021 on the same day.

Download 2024 Annual Data

World Air Quality Report

Globe

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

Chetla, Kolkata, West Bengal, India

AQI
Day
Night
.

5 AM12th Oct 2025

5 PM

4 AM13th Oct 2025

Day time
Avg. Highest Time
3PM12th Oct

159AQI

Avg. Lowest Time
6AM12th Oct

74AQI

Night time
Avg. Highest Time
2AM13th Oct

159AQI

Avg. Lowest Time
12AM13th Oct

140AQI

In the last 24 hours,

Chetla's AQI reached its highest point of 159 at 3 PM during the Day, while the lowest point, 74, was recorded at 6 AM during the Day between 12th Oct and 13th Oct 2025.

Day & Night AQI Trend : Sep - Oct 2025

Chetla, Kolkata, West Bengal, India

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 2025765 AMAQI
13th Sep 2025786 AMAQI
13th Sep 2025797 AMAQI
13th Sep 2025928 AMAQI
13th Sep 2025969 AMAQI
13th Sep 20257110 AMAQI
13th Sep 20258711 AMAQI
13th Sep 20257612 PMAQI
13th Sep 2025641 PMAQI
13th Sep 2025632 PMAQI
13th Sep 2025923 PMAQI
13th Sep 2025844 PMAQI
13th Sep 2025765 PMAQI
13th Sep 2025886 PMAQI
13th Sep 2025847 PMAQI
13th Sep 2025808 PMAQI
13th Sep 2025839 PMAQI
13th Sep 20258410 PMAQI
13th Sep 20259611 PMAQI
14th Sep 20258312 AMAQI
14th Sep 2025851 AMAQI
14th Sep 2025822 AMAQI
14th Sep 2025853 AMAQI
14th Sep 2025844 AMAQI

29°C26/32°C

14th Sep 2025975 AMAQI
14th Sep 20251106 AMAQI
14th Sep 2025637 AMAQI
14th Sep 2025668 AMAQI
14th Sep 2025649 AMAQI
14th Sep 20256610 AMAQI
14th Sep 20257211 AMAQI
14th Sep 20257412 PMAQI
14th Sep 2025631 PMAQI
14th Sep 2025762 PMAQI
14th Sep 2025763 PMAQI
14th Sep 2025744 PMAQI
14th Sep 2025795 PMAQI
14th Sep 2025766 PMAQI
14th Sep 2025807 PMAQI
14th Sep 2025808 PMAQI
14th Sep 2025809 PMAQI
14th Sep 20257610 PMAQI
14th Sep 20257811 PMAQI
15th Sep 20258712 AMAQI
15th Sep 2025821 AMAQI
15th Sep 2025822 AMAQI
15th Sep 2025803 AMAQI
15th Sep 2025804 AMAQI

29°C26/32°C

15th Sep 2025725 AMAQI
15th Sep 2025676 AMAQI
15th Sep 2025777 AMAQI
15th Sep 2025628 AMAQI
15th Sep 2025629 AMAQI
15th Sep 20256510 AMAQI
15th Sep 20257011 AMAQI
15th Sep 20257412 PMAQI
15th Sep 2025741 PMAQI
15th Sep 2025712 PMAQI
15th Sep 2025713 PMAQI
15th Sep 2025724 PMAQI
15th Sep 2025745 PMAQI
15th Sep 2025756 PMAQI
15th Sep 2025747 PMAQI
15th Sep 2025788 PMAQI
15th Sep 2025789 PMAQI
15th Sep 20258010 PMAQI
15th Sep 20258211 PMAQI
16th Sep 20257712 AMAQI
16th Sep 2025761 AMAQI
16th Sep 2025762 AMAQI
16th Sep 2025763 AMAQI
16th Sep 2025774 AMAQI

27°C26/28°C

16th Sep 2025725 AMAQI
16th Sep 2025626 AMAQI
16th Sep 2025617 AMAQI
16th Sep 2025668 AMAQI
16th Sep 2025629 AMAQI
16th Sep 20256410 AMAQI
16th Sep 20256411 AMAQI
16th Sep 20257012 PMAQI
16th Sep 2025651 PMAQI
16th Sep 2025642 PMAQI
16th Sep 2025663 PMAQI
16th Sep 2025744 PMAQI
16th Sep 2025715 PMAQI
16th Sep 2025726 PMAQI
16th Sep 2025747 PMAQI
16th Sep 2025788 PMAQI
16th Sep 2025709 PMAQI
16th Sep 20257010 PMAQI
16th Sep 20257011 PMAQI
17th Sep 20257112 AMAQI
17th Sep 2025701 AMAQI
17th Sep 2025702 AMAQI
17th Sep 2025703 AMAQI
17th Sep 2025704 AMAQI

27°C25/31°C

17th Sep 2025705 AMAQI
17th Sep 2025626 AMAQI
17th Sep 2025727 AMAQI
17th Sep 2025668 AMAQI
17th Sep 2025659 AMAQI
17th Sep 20256510 AMAQI
17th Sep 20256711 AMAQI
17th Sep 20257512 PMAQI
17th Sep 2025651 PMAQI
17th Sep 2025662 PMAQI
17th Sep 2025683 PMAQI
17th Sep 2025684 PMAQI
17th Sep 2025645 PMAQI
17th Sep 2025726 PMAQI
17th Sep 2025737 PMAQI
17th Sep 2025738 PMAQI
17th Sep 2025739 PMAQI
17th Sep 20257410 PMAQI
17th Sep 20257211 PMAQI
18th Sep 20257212 AMAQI
18th Sep 2025701 AMAQI
18th Sep 2025692 AMAQI
18th Sep 2025683 AMAQI
18th Sep 2025694 AMAQI

28°C26/33°C

18th Sep 2025705 AMAQI
18th Sep 2025696 AMAQI
18th Sep 2025747 AMAQI
18th Sep 2025968 AMAQI
18th Sep 2025749 AMAQI
18th Sep 20257510 AMAQI
18th Sep 20256811 AMAQI
18th Sep 20257312 PMAQI
18th Sep 2025641 PMAQI
18th Sep 2025712 PMAQI
18th Sep 2025863 PMAQI
18th Sep 2025814 PMAQI
18th Sep 2025725 PMAQI
18th Sep 2025736 PMAQI
18th Sep 2025727 PMAQI
18th Sep 2025708 PMAQI
18th Sep 2025749 PMAQI
18th Sep 20257410 PMAQI
18th Sep 20259211 PMAQI
19th Sep 20258512 AMAQI
19th Sep 2025711 AMAQI
19th Sep 2025702 AMAQI
19th Sep 2025703 AMAQI
19th Sep 2025704 AMAQI

29°C26/33°C

19th Sep 2025725 AMAQI
19th Sep 2025766 AMAQI
19th Sep 2025707 AMAQI
19th Sep 2025768 AMAQI
19th Sep 2025749 AMAQI
19th Sep 20258010 AMAQI
19th Sep 20258511 AMAQI
19th Sep 20258812 PMAQI
19th Sep 2025901 PMAQI
19th Sep 2025862 PMAQI
19th Sep 2025953 PMAQI
19th Sep 2025994 PMAQI
19th Sep 2025835 PMAQI
19th Sep 2025826 PMAQI
19th Sep 2025907 PMAQI
19th Sep 2025868 PMAQI
19th Sep 2025889 PMAQI
19th Sep 20258910 PMAQI
19th Sep 20259411 PMAQI
20th Sep 20258712 AMAQI
20th Sep 2025761 AMAQI
20th Sep 2025762 AMAQI
20th Sep 2025763 AMAQI
20th Sep 2025774 AMAQI

30°C26/34°C

20th Sep 2025825 AMAQI
20th Sep 20251026 AMAQI
20th Sep 20251027 AMAQI
20th Sep 20251198 AMAQI
20th Sep 20251099 AMAQI
20th Sep 202511110 AMAQI
20th Sep 202510511 AMAQI
20th Sep 202512212 PMAQI
20th Sep 20251131 PMAQI
20th Sep 20251092 PMAQI
20th Sep 20251003 PMAQI
20th Sep 2025904 PMAQI
20th Sep 2025885 PMAQI
20th Sep 2025866 PMAQI
20th Sep 2025857 PMAQI
20th Sep 2025948 PMAQI
20th Sep 2025929 PMAQI
20th Sep 20259110 PMAQI
20th Sep 202510211 PMAQI
21st Sep 20259312 AMAQI
21st Sep 2025891 AMAQI
21st Sep 2025882 AMAQI
21st Sep 2025883 AMAQI
21st Sep 2025894 AMAQI

30°C27/34°C

21st Sep 2025985 AMAQI
21st Sep 20251206 AMAQI
21st Sep 20251187 AMAQI
21st Sep 20251208 AMAQI
21st Sep 20251219 AMAQI
21st Sep 202512310 AMAQI
21st Sep 202512411 AMAQI
21st Sep 202513212 PMAQI
21st Sep 20251191 PMAQI
21st Sep 20251262 PMAQI
21st Sep 20251263 PMAQI
21st Sep 20251214 PMAQI
21st Sep 20251135 PMAQI
21st Sep 20251226 PMAQI
21st Sep 20251107 PMAQI
21st Sep 20251208 PMAQI
21st Sep 20251189 PMAQI
21st Sep 202510210 PMAQI
21st Sep 202511011 PMAQI
22nd Sep 202510812 AMAQI
22nd Sep 20251051 AMAQI
22nd Sep 20251052 AMAQI
22nd Sep 20251033 AMAQI
22nd Sep 20251044 AMAQI

29°C26/34°C

22nd Sep 20251005 AMAQI
22nd Sep 2025956 AMAQI
22nd Sep 20251057 AMAQI
22nd Sep 20251168 AMAQI
22nd Sep 20251009 AMAQI
22nd Sep 202511010 AMAQI
22nd Sep 202511011 AMAQI
22nd Sep 202511512 PMAQI
22nd Sep 20251281 PMAQI
22nd Sep 20251162 PMAQI
22nd Sep 20251063 PMAQI
22nd Sep 2025914 PMAQI
22nd Sep 2025975 PMAQI
22nd Sep 2025916 PMAQI
22nd Sep 2025867 PMAQI
22nd Sep 2025858 PMAQI
22nd Sep 2025889 PMAQI
22nd Sep 20259110 PMAQI
22nd Sep 202510111 PMAQI
23rd Sep 20259212 AMAQI
23rd Sep 20251041 AMAQI
23rd Sep 20251062 AMAQI
23rd Sep 20251053 AMAQI
23rd Sep 20251044 AMAQI

27°C26/29°C

23rd Sep 2025965 AMAQI
23rd Sep 2025676 AMAQI
23rd Sep 2025737 AMAQI
23rd Sep 2025628 AMAQI
23rd Sep 2025679 AMAQI
23rd Sep 20256310 AMAQI
23rd Sep 20256511 AMAQI
23rd Sep 20256212 PMAQI
23rd Sep 2025581 PMAQI
23rd Sep 2025662 PMAQI
23rd Sep 2025663 PMAQI
23rd Sep 2025704 PMAQI
23rd Sep 2025825 PMAQI
23rd Sep 2025806 PMAQI
23rd Sep 2025787 PMAQI
23rd Sep 2025848 PMAQI
23rd Sep 2025839 PMAQI
23rd Sep 20259210 PMAQI
23rd Sep 20258911 PMAQI
24th Sep 20259212 AMAQI
24th Sep 2025851 AMAQI
24th Sep 2025862 AMAQI
24th Sep 2025853 AMAQI
24th Sep 2025864 AMAQI

27°C25/30°C

24th Sep 2025825 AMAQI
24th Sep 2025776 AMAQI
24th Sep 2025887 AMAQI
24th Sep 2025758 AMAQI
24th Sep 2025819 AMAQI
24th Sep 20257610 AMAQI
24th Sep 20257011 AMAQI
24th Sep 20257012 PMAQI
24th Sep 2025671 PMAQI
24th Sep 2025732 PMAQI
24th Sep 2025793 PMAQI
24th Sep 2025734 PMAQI
24th Sep 2025805 PMAQI
24th Sep 2025796 PMAQI
24th Sep 2025747 PMAQI
24th Sep 2025788 PMAQI
24th Sep 2025849 PMAQI
24th Sep 20258310 PMAQI
24th Sep 20258211 PMAQI
25th Sep 20258012 AMAQI
25th Sep 2025801 AMAQI
25th Sep 2025812 AMAQI
25th Sep 2025803 AMAQI
25th Sep 2025824 AMAQI

28°C25/32°C

25th Sep 2025805 AMAQI
25th Sep 2025796 AMAQI
25th Sep 2025787 AMAQI
25th Sep 2025878 AMAQI
25th Sep 2025849 AMAQI
25th Sep 20258010 AMAQI
25th Sep 20257611 AMAQI
25th Sep 20257312 PMAQI
25th Sep 2025711 PMAQI
25th Sep 2025682 PMAQI
25th Sep 2025673 PMAQI
25th Sep 2025644 PMAQI
25th Sep 2025635 PMAQI
25th Sep 2025666 PMAQI
25th Sep 2025717 PMAQI
25th Sep 2025818 PMAQI
25th Sep 2025829 PMAQI
25th Sep 20257510 PMAQI
25th Sep 20257311 PMAQI
26th Sep 20257212 AMAQI
26th Sep 2025751 AMAQI
26th Sep 2025752 AMAQI
26th Sep 2025763 AMAQI
26th Sep 2025814 AMAQI

29°C26/33°C

26th Sep 2025825 AMAQI
26th Sep 2025816 AMAQI
26th Sep 2025847 AMAQI
26th Sep 2025838 AMAQI
26th Sep 2025809 AMAQI
26th Sep 20257810 AMAQI
26th Sep 20257511 AMAQI
26th Sep 20256912 PMAQI
26th Sep 2025641 PMAQI
26th Sep 2025642 PMAQI
26th Sep 2025683 PMAQI
26th Sep 2025684 PMAQI
26th Sep 2025675 PMAQI
26th Sep 2025656 PMAQI
26th Sep 2025667 PMAQI
26th Sep 2025688 PMAQI
26th Sep 2025689 PMAQI
26th Sep 20256910 PMAQI
26th Sep 20256811 PMAQI
27th Sep 20256612 AMAQI
27th Sep 2025641 AMAQI
27th Sep 2025652 AMAQI
27th Sep 2025653 AMAQI
27th Sep 2025634 AMAQI

29°C26/33°C

27th Sep 2025635 AMAQI
27th Sep 2025646 AMAQI
27th Sep 2025647 AMAQI
27th Sep 2025658 AMAQI
27th Sep 2025669 AMAQI
27th Sep 20256710 AMAQI
27th Sep 20256811 AMAQI
27th Sep 20256612 PMAQI
27th Sep 2025671 PMAQI
27th Sep 2025692 PMAQI
27th Sep 2025683 PMAQI
27th Sep 2025694 PMAQI
27th Sep 2025685 PMAQI
27th Sep 2025686 PMAQI
27th Sep 2025697 PMAQI
27th Sep 2025688 PMAQI
27th Sep 2025699 PMAQI
27th Sep 20257210 PMAQI
27th Sep 20257311 PMAQI
28th Sep 20257212 AMAQI
28th Sep 2025711 AMAQI
28th Sep 2025702 AMAQI
28th Sep 2025723 AMAQI
28th Sep 2025734 AMAQI

29°C26/33°C

28th Sep 2025735 AMAQI
28th Sep 2025716 AMAQI
28th Sep 2025717 AMAQI
28th Sep 2025698 AMAQI
28th Sep 2025689 AMAQI
28th Sep 20256710 AMAQI
28th Sep 20256611 AMAQI
28th Sep 20256612 PMAQI
28th Sep 2025661 PMAQI
28th Sep 2025642 PMAQI
28th Sep 2025653 PMAQI
28th Sep 2025684 PMAQI
28th Sep 2025685 PMAQI
28th Sep 2025676 PMAQI
28th Sep 2025667 PMAQI
28th Sep 2025688 PMAQI
28th Sep 2025689 PMAQI
28th Sep 20256710 PMAQI
28th Sep 20257411 PMAQI
29th Sep 20257712 AMAQI
29th Sep 2025731 AMAQI
29th Sep 2025652 AMAQI
29th Sep 2025723 AMAQI
29th Sep 2025704 AMAQI

29°C26/33°C

29th Sep 2025755 AMAQI
29th Sep 2025696 AMAQI
29th Sep 2025707 AMAQI
29th Sep 2025748 AMAQI
29th Sep 2025729 AMAQI
29th Sep 20257310 AMAQI
29th Sep 20257711 AMAQI
29th Sep 20257612 PMAQI
29th Sep 2025751 PMAQI
29th Sep 2025732 PMAQI
29th Sep 2025713 PMAQI
29th Sep 2025764 PMAQI
29th Sep 2025785 PMAQI
29th Sep 2025736 PMAQI
29th Sep 2025777 PMAQI
29th Sep 2025738 PMAQI
29th Sep 2025869 PMAQI
29th Sep 20257510 PMAQI
29th Sep 20259011 PMAQI
30th Sep 20258312 AMAQI
30th Sep 2025761 AMAQI
30th Sep 2025802 AMAQI
30th Sep 2025873 AMAQI
30th Sep 2025774 AMAQI

29°C26/33°C

30th Sep 2025915 AMAQI
30th Sep 2025766 AMAQI
30th Sep 2025697 AMAQI
30th Sep 2025778 AMAQI
30th Sep 2025789 AMAQI
30th Sep 20257210 AMAQI
30th Sep 20257711 AMAQI
30th Sep 20257012 PMAQI
30th Sep 2025741 PMAQI
30th Sep 2025742 PMAQI
30th Sep 2025763 PMAQI
30th Sep 2025784 PMAQI
30th Sep 2025795 PMAQI
30th Sep 2025726 PMAQI
30th Sep 2025747 PMAQI
30th Sep 2025748 PMAQI
30th Sep 2025809 PMAQI
30th Sep 20258710 PMAQI
30th Sep 20259011 PMAQI
1st Oct 20258912 AMAQI
1st Oct 2025731 AMAQI
1st Oct 2025752 AMAQI
1st Oct 2025883 AMAQI
1st Oct 2025884 AMAQI

31°C27/35°C

1st Oct 2025765 AMAQI
1st Oct 2025736 AMAQI
1st Oct 2025687 AMAQI
1st Oct 2025718 AMAQI
1st Oct 2025639 AMAQI
1st Oct 20256810 AMAQI
1st Oct 20257211 AMAQI
1st Oct 20257912 PMAQI
1st Oct 2025811 PMAQI
1st Oct 2025832 PMAQI
1st Oct 2025813 PMAQI
1st Oct 2025794 PMAQI
1st Oct 2025815 PMAQI
1st Oct 2025786 PMAQI
1st Oct 2025787 PMAQI
1st Oct 2025788 PMAQI
1st Oct 2025739 PMAQI
1st Oct 20257010 PMAQI
1st Oct 20256811 PMAQI
2nd Oct 20256912 AMAQI
2nd Oct 2025691 AMAQI
2nd Oct 2025662 AMAQI
2nd Oct 2025703 AMAQI
2nd Oct 2025674 AMAQI

30°C27/34°C

2nd Oct 2025685 AMAQI
2nd Oct 2025656 AMAQI
2nd Oct 2025647 AMAQI
2nd Oct 2025618 AMAQI
2nd Oct 2025619 AMAQI
2nd Oct 20256110 AMAQI
2nd Oct 20256211 AMAQI
2nd Oct 20256912 PMAQI
2nd Oct 2025641 PMAQI
2nd Oct 2025722 PMAQI
2nd Oct 2025733 PMAQI
2nd Oct 2025624 PMAQI
2nd Oct 2025635 PMAQI
2nd Oct 2025646 PMAQI
2nd Oct 2025617 PMAQI
2nd Oct 2025608 PMAQI
2nd Oct 2025609 PMAQI
2nd Oct 20256110 PMAQI
2nd Oct 20256411 PMAQI
3rd Oct 20256012 AMAQI
3rd Oct 2025631 AMAQI
3rd Oct 2025622 AMAQI
3rd Oct 2025613 AMAQI
3rd Oct 2025624 AMAQI

26°C25/27°C

3rd Oct 2025615 AMAQI
3rd Oct 2025626 AMAQI
3rd Oct 2025617 AMAQI
3rd Oct 2025638 AMAQI
3rd Oct 2025639 AMAQI
3rd Oct 20256210 AMAQI
3rd Oct 20256411 AMAQI
3rd Oct 20256612 PMAQI
3rd Oct 2025641 PMAQI
3rd Oct 2025662 PMAQI
3rd Oct 2025763 PMAQI
3rd Oct 2025864 PMAQI
3rd Oct 2025795 PMAQI
3rd Oct 2025966 PMAQI
3rd Oct 2025967 PMAQI
3rd Oct 2025988 PMAQI
3rd Oct 2025959 PMAQI
3rd Oct 20258910 PMAQI
3rd Oct 20258611 PMAQI
4th Oct 20258512 AMAQI
4th Oct 2025841 AMAQI
4th Oct 2025852 AMAQI
4th Oct 2025843 AMAQI
4th Oct 2025864 AMAQI

27°C25/29°C

4th Oct 2025865 AMAQI
4th Oct 2025866 AMAQI
4th Oct 2025827 AMAQI
4th Oct 2025808 AMAQI
4th Oct 2025909 AMAQI
4th Oct 20259110 AMAQI
4th Oct 20259211 AMAQI
4th Oct 20259712 PMAQI
4th Oct 2025941 PMAQI
4th Oct 20251342 PMAQI
4th Oct 20251303 PMAQI
4th Oct 20251114 PMAQI
4th Oct 20251155 PMAQI
4th Oct 20251046 PMAQI
4th Oct 20251107 PMAQI
4th Oct 20251158 PMAQI
4th Oct 20251129 PMAQI
4th Oct 20259510 PMAQI
4th Oct 20259211 PMAQI
5th Oct 20259012 AMAQI
5th Oct 2025871 AMAQI
5th Oct 2025852 AMAQI
5th Oct 2025893 AMAQI
5th Oct 2025874 AMAQI

28°C25/30°C

5th Oct 2025785 AMAQI
5th Oct 2025836 AMAQI
5th Oct 2025807 AMAQI
5th Oct 2025798 AMAQI
5th Oct 2025809 AMAQI
5th Oct 20257510 AMAQI
5th Oct 20257211 AMAQI
5th Oct 20257212 PMAQI
5th Oct 2025791 PMAQI
5th Oct 2025882 PMAQI
5th Oct 20251043 PMAQI
5th Oct 20251134 PMAQI
5th Oct 20251115 PMAQI
5th Oct 20251176 PMAQI
5th Oct 20251167 PMAQI
5th Oct 20251028 PMAQI
5th Oct 20251019 PMAQI
5th Oct 20259610 PMAQI
5th Oct 20259211 PMAQI
6th Oct 20259112 AMAQI
6th Oct 2025941 AMAQI
6th Oct 2025982 AMAQI
6th Oct 20251023 AMAQI
6th Oct 20251014 AMAQI

28°C26/31°C

6th Oct 20251005 AMAQI
6th Oct 2025976 AMAQI
6th Oct 2025987 AMAQI
6th Oct 20251138 AMAQI
6th Oct 20251199 AMAQI
6th Oct 202511810 AMAQI
6th Oct 202511411 AMAQI
6th Oct 202512112 PMAQI
6th Oct 20251371 PMAQI
6th Oct 20251312 PMAQI
6th Oct 20251103 PMAQI
6th Oct 20251044 PMAQI
6th Oct 20251085 PMAQI
6th Oct 20251086 PMAQI
6th Oct 20251357 PMAQI
6th Oct 20251428 PMAQI
6th Oct 20251489 PMAQI
6th Oct 202513610 PMAQI

28°C25/31°C

7th Oct 20251365 PMAQI
7th Oct 20251346 PMAQI
7th Oct 20251337 PMAQI
7th Oct 20251148 PMAQI
7th Oct 20251099 PMAQI
7th Oct 202510310 PMAQI
7th Oct 20259411 PMAQI
8th Oct 20258912 AMAQI
8th Oct 2025831 AMAQI
8th Oct 2025812 AMAQI
8th Oct 2025773 AMAQI
8th Oct 2025764 AMAQI

28°C25/31°C

8th Oct 2025765 AMAQI
8th Oct 2025726 AMAQI
8th Oct 2025787 AMAQI
8th Oct 2025818 AMAQI
8th Oct 2025899 AMAQI
8th Oct 202510410 AMAQI
8th Oct 202511711 AMAQI
8th Oct 202513012 PMAQI
8th Oct 20251431 PMAQI
8th Oct 20251392 PMAQI
8th Oct 20251303 PMAQI
8th Oct 20251184 PMAQI
8th Oct 20251235 PMAQI
8th Oct 20251206 PMAQI
8th Oct 20251167 PMAQI
8th Oct 20251158 PMAQI
8th Oct 20251119 PMAQI
8th Oct 202510410 PMAQI
8th Oct 202510411 PMAQI
9th Oct 202510312 AMAQI
9th Oct 20251091 AMAQI
9th Oct 20251072 AMAQI
9th Oct 20251023 AMAQI
9th Oct 20251094 AMAQI

28°C25/31°C

9th Oct 20251185 AMAQI
9th Oct 20251146 AMAQI
9th Oct 20251157 AMAQI
9th Oct 20251288 AMAQI
9th Oct 20251379 AMAQI
9th Oct 202513810 AMAQI
9th Oct 202514011 AMAQI
9th Oct 202515012 PMAQI
9th Oct 20251571 PMAQI
9th Oct 20251512 PMAQI
9th Oct 20251573 PMAQI
9th Oct 20251504 PMAQI
9th Oct 20251505 PMAQI
9th Oct 20251466 PMAQI
9th Oct 20251347 PMAQI
9th Oct 20251328 PMAQI
9th Oct 20251229 PMAQI
9th Oct 202512010 PMAQI
9th Oct 202511811 PMAQI
10th Oct 202512112 AMAQI
10th Oct 20251181 AMAQI
10th Oct 20251052 AMAQI
10th Oct 20251053 AMAQI
10th Oct 20251084 AMAQI

28°C25/32°C

10th Oct 20251135 AMAQI
10th Oct 20251136 AMAQI
10th Oct 20251167 AMAQI
10th Oct 20251118 AMAQI
10th Oct 20251189 AMAQI
10th Oct 202512510 AMAQI
10th Oct 202513011 AMAQI
10th Oct 202513012 PMAQI
10th Oct 20251441 PMAQI
10th Oct 20251542 PMAQI
10th Oct 20251563 PMAQI
10th Oct 20251404 PMAQI
10th Oct 20251425 PMAQI
10th Oct 20251456 PMAQI
10th Oct 20251327 PMAQI
10th Oct 20251178 PMAQI
10th Oct 20251139 PMAQI
10th Oct 202510510 PMAQI
10th Oct 20259011 PMAQI
11th Oct 20259012 AMAQI
11th Oct 2025831 AMAQI
11th Oct 2025832 AMAQI
11th Oct 2025853 AMAQI
11th Oct 2025864 AMAQI

27°C25/31°C

11th Oct 2025945 AMAQI
11th Oct 2025946 AMAQI
11th Oct 2025937 AMAQI
11th Oct 2025948 AMAQI
11th Oct 2025919 AMAQI
11th Oct 20258610 AMAQI
11th Oct 20259011 AMAQI
11th Oct 202510212 PMAQI
11th Oct 20251071 PMAQI
11th Oct 20251272 PMAQI
11th Oct 20251493 PMAQI
11th Oct 20251324 PMAQI
11th Oct 20251495 PMAQI
11th Oct 20251536 PMAQI
11th Oct 20251517 PMAQI
11th Oct 20251398 PMAQI
11th Oct 20251439 PMAQI
11th Oct 202515110 PMAQI
11th Oct 202515011 PMAQI
12th Oct 202514612 AMAQI
12th Oct 20251361 AMAQI
12th Oct 20251162 AMAQI
12th Oct 2025873 AMAQI
12th Oct 2025824 AMAQI

27°C24/31°C

12th Oct 2025815 AMAQI
12th Oct 2025746 AMAQI
12th Oct 2025867 AMAQI
12th Oct 2025838 AMAQI
12th Oct 2025909 AMAQI
12th Oct 20259110 AMAQI
12th Oct 202510811 AMAQI
12th Oct 202513812 PMAQI
12th Oct 20251431 PMAQI
12th Oct 20251582 PMAQI
12th Oct 20251593 PMAQI
12th Oct 20251594 PMAQI
12th Oct 20251515 PMAQI
12th Oct 20251566 PMAQI
12th Oct 20251587 PMAQI
12th Oct 20251548 PMAQI
12th Oct 20251529 PMAQI
12th Oct 202515010 PMAQI
12th Oct 202514211 PMAQI
13th Oct 202514012 AMAQI
13th Oct 20251521 AMAQI
13th Oct 20251592 AMAQI
13th Oct 20251573 AMAQI
13th Oct 20251584 AMAQI

27°C23/32°C

13th Oct 20251565 AMAQI
5 AM
13th Oct 20251546 AMAQI
13th Oct 20251517 AMAQI
13th Oct 20251508 AMAQI
13th Oct 20251559 AMAQI
13th Oct 202515510 AMAQI
11 AM
5 PM
11 PM
4 AM

--°C/°C

Day time
Avg. Highest Time
3 PM

96AQI

1 hours / Day
30 hours / Month
Avg. Lowest Time
5 AM - 11 AM

85AQI

7 hours / Day
210 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 3 PM to 3 PM (Avg. 96), while the lowest AQI was between 5 AM to 11 AM (Avg. 85).
Night time
Avg. Highest Time
6 PM - 11 PM

93AQI

6 hours / Day
180 hours / Month
Avg. Lowest Time
12 AM - 4 AM

86AQI

5 hours / Day
150 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 6 PM to 11 PM (Avg. 93), while the lowest AQI was between 12 AM to 4 AM (Avg. 86).

2025 Days Vs Air Quality

Chetla, Kolkata, West Bengal, India

2025

62%

177

26%

73

12%

35

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

Good
0 Days
Moderate
177 Days
Poor
73 Days
Unhealthy
35 Days
Severe
0 Days
Hazardous
0 Days

Under WHO’s Safe Air Quality Limits: 0%

Health Risk Level:

Extreme

In 2025, 0% 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

Chetla, 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
182AQI
2nd January 2025
157AQI
3rd January 2025
175AQI
4th January 2025
172AQI
5th January 2025
171AQI
6th January 2025
165AQI
7th January 2025
167AQI
8th January 2025
149AQI
9th January 2025
155AQI
10th January 2025
176AQI
11th January 2025
182AQI
12th January 2025
186AQI
13th January 2025
181AQI
14th January 2025
172AQI
15th January 2025
167AQI
16th January 2025
166AQI
17th January 2025
162AQI
18th January 2025
164AQI
19th January 2025
154AQI
20th January 2025
152AQI
21st January 2025
160AQI
22nd January 2025
166AQI
23rd January 2025
170AQI
24th January 2025
167AQI
25th January 2025
169AQI
26th January 2025
147AQI
27th January 2025
166AQI
28th January 2025
164AQI
29th January 2025
154AQI
30th January 2025
133AQI
31st January 2025
129AQI
1st February 2025
133AQI
2nd February 2025
147AQI
3rd February 2025
155AQI
4th February 2025
152AQI
5th February 2025
164AQI
6th February 2025
149AQI
7th February 2025
144AQI
8th February 2025
154AQI
9th February 2025
158AQI
10th February 2025
159AQI
11th February 2025
144AQI
12th February 2025
141AQI
13th February 2025
149AQI
14th February 2025
149AQI
15th February 2025
155AQI
16th February 2025
138AQI
17th February 2025
119AQI
18th February 2025
126AQI
19th February 2025
123AQI
20th February 2025
118AQI
21st February 2025
125AQI
22nd February 2025
130AQI
23rd February 2025
125AQI
24th February 2025
136AQI
25th February 2025
148AQI
26th February 2025
146AQI
27th February 2025
158AQI
28th February 2025
150AQI
1st March 2025
122AQI
2nd March 2025
129AQI
3rd March 2025
130AQI
4th March 2025
118AQI
5th March 2025
130AQI
6th March 2025
119AQI
7th March 2025
144AQI
8th March 2025
137AQI
9th March 2025
132AQI
10th March 2025
134AQI
11th March 2025
120AQI
12th March 2025
132AQI
13th March 2025
117AQI
14th March 2025
114AQI
15th March 2025
104AQI
16th March 2025
97AQI
17th March 2025
106AQI
18th March 2025
109AQI
19th March 2025
137AQI
20th March 2025
95AQI
21st March 2025
123AQI
22nd March 2025
78AQI
23rd March 2025
111AQI
24th March 2025
131AQI
25th March 2025
141AQI
26th March 2025
116AQI
27th March 2025
125AQI
28th March 2025
138AQI
29th March 2025
140AQI
30th March 2025
135AQI
31st March 2025
123AQI
1st April 2025
110AQI
2nd April 2025
94AQI
3rd April 2025
93AQI
4th April 2025
106AQI
5th April 2025
105AQI
6th April 2025
99AQI
7th April 2025
83AQI
8th April 2025
78AQI
9th April 2025
69AQI
10th April 2025
69AQI
11th April 2025
75AQI
12th April 2025
73AQI
13th April 2025
95AQI
14th April 2025
89AQI
15th April 2025
91AQI
16th April 2025
101AQI
17th April 2025
82AQI
18th April 2025
78AQI
19th April 2025
85AQI
20th April 2025
87AQI
21st April 2025
87AQI
22nd April 2025
93AQI
23rd April 2025
106AQI
24th April 2025
94AQI
25th April 2025
84AQI
26th April 2025
74AQI
27th April 2025
88AQI
28th April 2025
102AQI
29th April 2025
82AQI
30th April 2025
85AQI
1st May 2025
84AQI
2nd May 2025
84AQI
3rd May 2025
80AQI
4th May 2025
83AQI
5th May 2025
76AQI
6th May 2025
82AQI
7th May 2025
92AQI
8th May 2025
95AQI
9th May 2025
96AQI
10th May 2025
116AQI
11th May 2025
113AQI
12th May 2025
107AQI
13th May 2025
97AQI
14th May 2025
90AQI
15th May 2025
84AQI
16th May 2025
80AQI
17th May 2025
76AQI
18th May 2025
69AQI
19th May 2025
63AQI
20th May 2025
61AQI
21st May 2025
65AQI
22nd May 2025
71AQI
23rd May 2025
67AQI
24th May 2025
64AQI
25th May 2025
59AQI
26th May 2025
57AQI
27th May 2025
60AQI
28th May 2025
58AQI
29th May 2025
60AQI
30th May 2025
62AQI
31st May 2025
79AQI
1st June 2025
86AQI
2nd June 2025
104AQI
3rd June 2025
96AQI
4th June 2025
83AQI
5th June 2025
83AQI
6th June 2025
90AQI
7th June 2025
100AQI
8th June 2025
107AQI
9th June 2025
103AQI
10th June 2025
103AQI
11th June 2025
90AQI
12th June 2025
76AQI
13th June 2025
74AQI
14th June 2025
78AQI
15th June 2025
73AQI
16th June 2025
64AQI
17th June 2025
64AQI
18th June 2025
65AQI
19th June 2025
66AQI
20th June 2025
68AQI
21st June 2025
75AQI
22nd June 2025
83AQI
23rd June 2025
77AQI
24th June 2025
71AQI
25th June 2025
71AQI
26th June 2025
65AQI
27th June 2025
63AQI
28th June 2025
67AQI
29th June 2025
67AQI
30th June 2025
70AQI
1st July 2025
68AQI
2nd July 2025
64AQI
3rd July 2025
65AQI
4th July 2025
66AQI
5th July 2025
68AQI
6th July 2025
65AQI
7th July 2025
63AQI
8th July 2025
62AQI
9th July 2025
62AQI
10th July 2025
62AQI
11th July 2025
63AQI
12th July 2025
66AQI
13th July 2025
68AQI
14th July 2025
66AQI
15th July 2025
67AQI
16th July 2025
70AQI
17th July 2025
68AQI
18th July 2025
69AQI
19th July 2025
70AQI
20th July 2025
71AQI
21st July 2025
70AQI
22nd July 2025
68AQI
23rd July 2025
69AQI
24th July 2025
69AQI
25th July 2025
69AQI
26th July 2025
63AQI
27th July 2025
62AQI
28th July 2025
63AQI
29th July 2025
65AQI
30th July 2025
61AQI
31st July 2025
67AQI
1st August 2025
73AQI
2nd August 2025
82AQI
3rd August 2025
78AQI
4th August 2025
77AQI
5th August 2025
80AQI
6th August 2025
80AQI
7th August 2025
83AQI
8th August 2025
75AQI
9th August 2025
65AQI
10th August 2025
61AQI
11th August 2025
64AQI
12th August 2025
75AQI
13th August 2025
71AQI
14th August 2025
64AQI
15th August 2025
60AQI
16th August 2025
60AQI
17th August 2025
60AQI
18th August 2025
55AQI
19th August 2025
59AQI
20th August 2025
60AQI
21st August 2025
64AQI
22nd August 2025
70AQI
23rd August 2025
67AQI
24th August 2025
70AQI
25th August 2025
68AQI
26th August 2025
73AQI
27th August 2025
70AQI
28th August 2025
68AQI
29th August 2025
68AQI
30th August 2025
70AQI
31st August 2025
71AQI
1st September 2025
80AQI
2nd September 2025
73AQI
3rd September 2025
66AQI
4th September 2025
62AQI
5th September 2025
63AQI
6th September 2025
74AQI
7th September 2025
79AQI
8th September 2025
83AQI
9th September 2025
87AQI
10th September 2025
89AQI
11th September 2025
88AQI
12th September 2025
86AQI
13th September 2025
81AQI
14th September 2025
79AQI
15th September 2025
78AQI
16th September 2025
71AQI
17th September 2025
69AQI
18th September 2025
74AQI
19th September 2025
84AQI
20th September 2025
93AQI
21st September 2025
110AQI
22nd September 2025
103AQI
23rd September 2025
83AQI
24th September 2025
81AQI
25th September 2025
76AQI
26th September 2025
72AQI
27th September 2025
67AQI
28th September 2025
70AQI
29th September 2025
76AQI
30th September 2025
78AQI
1st October 2025
78AQI
2nd October 2025
65AQI
3rd October 2025
72AQI
4th October 2025
95AQI
5th October 2025
89AQI
6th October 2025
107AQI
7th October 2025
117AQI
8th October 2025
100AQI
9th October 2025
123AQI
10th October 2025
121AQI
11th October 2025
110AQI
12th October 2025
122AQI
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

164AQI

143AQI

122AQI

89AQI

78AQI

79AQI

66AQI

69AQI

79AQI

100AQI

No. of days

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

202599AQI

4
27
20
8
3
28
24
6
28
3
26
4
31
31
28
2
6
6
177
73
35

Highest AQI recorded in

January

164AQI

Lowest AQI recorded in

July

66AQI

2024113AQI

8
22
1
8
15
6
12
11
8
10
20
6
24
1
2
28
6
25
3
28
10
17
3
15
16
13
16
1
6
25
27
159
78
72
29
1

Highest AQI recorded in

January

218AQI

Lowest AQI recorded in

July

59AQI

2023113AQI

1
28
2
2
17
9
9
19
3
12
17
1
29
2
5
21
4
14
17
2
20
7
2
6
20
4
3
5
13
10
8
13
8
1
6
17
7
30
136
98
83
17

Highest AQI recorded in

January

176AQI

Lowest AQI recorded in

July

52AQI

2022109AQI

4
25
2
2
24
2
10
8
13
27
1
26
4
2
27
1
18
11
8
4
8
17
3
8
5
9
9
5
25
2
22
7
45
129
60
96
9

Highest AQI recorded in

December

187AQI

Lowest AQI recorded in

August

43AQI

2021124AQI

9
11
1
6
8
9
8
2
8
20
1
1
4
23
1
16
22
22
51
1

Highest AQI recorded in

December

161AQI

Lowest AQI recorded in

September

58AQI

Most & Least Polluted Years Over the Last 5 Years

Most Polluted Year Recorded
2021(Avg.)
124AQI
Least Polluted Year Recorded
2025(Avg.)
99AQI

Chetla's annual 2025 AQI (99) shows an average percentage change of -14.04% (improved AQI) compared to previous years: 2021 (124), 2022 (109), 2023 (113), 2024 (113).