AQI Logo
AQI Logo
  • Ranking
  • Products
  • Resources

AQI Standard
AQI-USAQI-US

Preferred Language
English-INEnglish-IN


AQI Logo

Real-time Air quality and Weather data around the world

  • About AQI
  • About Us
  • Contact Us
  • AQI Monitor
  • Air Quality Blog
  • Climate Change
  • Community AQI Monitor
  • World Air Quality Report
  • Air Quality
  • AQI App
  • AQI TV App
  • AQI Map
  • AQI APIs
  • AQI Widgets
  • Web Dashboard
  • Rankings
  • Live AQI City Ranking
  • Historic AQI City Ranking
  • Historic AQI Country Ranking
  • Weather Ranking
  • Location
  • +91 73918 73918 icon+91 73918 73918
  • info@purelogic.in icon[email protected]
  • 706, 7th Floor, Crown Heights, Rohini Sec-10, Delhi 110085, INDIA icon706, 7th Floor, Crown Heights, Rohini Sec-10, Delhi 110085, INDIA
  • Support Desk
  • Find us on:
  • instagram icon
  • twitter (X) icon
  • linkedin icon
  • youtube icon
  • facebook icon

Terms & Conditions

Privacy Policy

© 2025 AQI, All rights reserved

Want to Buy AQI Monitor?Get a FREE AQI Monitor to Join the Community
MapMap
Climate ChangeClimate Change
Near Me?Near Me?
  • Dashboard
  • India
  • West Bengal
  • Kolkata
Kolkata
AQIHistoryPM2.5PM10COSO2NO2O3
View aqi DataAQIView weather DataWeather
Live

Kolkata Air Quality Index (AQI) | Air Pollution

Real-time PM2.5, PM10 air pollution level in West Bengal

Last Updated: 2025-07-12 06:40:28 PM (Local Time)

location image
Live AQI
66
Air Quality is
Moderate
pm10 :  38 µg/m³
PM2.5 :  18 µg/m³
Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+
aqi moderate level.webp in Kolkata
mist

31 °C

Mist
Humidity
Humidity79 %

Wind Speed
Wind Speed16 km/h

UV Index
UV Index0
Last Updated: 2025-07-12 06:40:28 PM (Local Time)
AQI LogoMap

Kolkata

Major Air Pollutants

Kolkata

PM2.5's Icon

Particulate Matter(PM2.5)

18µg/m³

PM10's Icon

Particulate Matter(PM10)

38µg/m³

CO's Icon

Carbon Monoxide(CO)

335ppb

SO2's Icon

Sulfur Dioxide(SO2)

2ppb

NO2's Icon

Nitrogen Dioxide(NO2)

12ppb

O3's Icon

Ozone(O3)

9ppb

Trending in India

Why You Should Be Monitoring Air Quality During Monsoon — Not Just in Winter?

Why You Should Be Monitoring Air Quality During Monsoon — Not Just in Winter?

🚨 “As soon as I land in Delhi, I start thinking — when can I leave?”
– Union Minister Nitin Gadkari

🚨 “As soon as I land in Delhi, I start thinking — when can I leave?” – Union Minister Nitin Gadkari

Air Pollution and Lung Cancer: How Toxic Air is Mutating Your DNA?

Air Pollution and Lung Cancer: How Toxic Air is Mutating Your DNA?

City Climate Change Severity Analysis is NOW LIVE on AQI.in!📢

City Climate Change Severity Analysis is NOW LIVE on AQI.in!📢

AQI Graph

Historical Air Quality Data

Kolkata

24 Hours
AQI
Kolkata
AQI
.
11-07-2025Time12-07-2025
TimeKolkata
06 PM66
07 PM64
08 PM66
09 PM67
10 PM68
11 PM67
12 AM65
01 AM63
02 AM63
03 AM63
04 AM64
05 AM66
06 AM69
07 AM71
08 AM70
09 AM71
10 AM71
11 AM69
12 PM72
01 PM74
02 PM74
03 PM75
04 PM72
05 PM68
06 PM67
63
Min.at 1:09 AM on 12th Jul
75
Max.at 3:09 PM on 12th Jul

Want air quality data?

AQI Logo

Download 2024 Annual Data

World Air Quality Report

Globe

AQI Trends - Annual Air Quality Changes

Kolkata, West Bengal, India

AQI
Year
.
AQI
AQI AQI
Mar 2020111
Apr 202076
May 202064
Jun 202054
Jul 202063
Aug 202053
Sep 202057
Oct 202091
Nov 2020154
Dec 2020231
Jan 2021221
Feb 2021183
Mar 2021149
Apr 2021112
May 202172
Jun 202179
Jul 202174
Aug 202183
Sep 202168
Oct 2021116
Nov 2021158
Dec 2021169
Jan 2022179
Feb 2022146
Mar 2022136
Apr 202277
May 202285
Jun 202275
Jul 202249
Aug 202251
Sep 202268
Oct 2022105
Nov 2022169
Dec 2022194
Jan 2023182
Feb 2023145
Mar 2023120
Apr 2023117
May 202387
Jun 202379
Jul 202350
Aug 202390
Sep 202367
Oct 2023123
Nov 2023178
Dec 2023175
Jan 2024218
Feb 2024177
Mar 2024133
Apr 2024125
May 202473
Jun 202472
Jul 202459
Aug 202472
Sep 202470
Oct 2024101
Nov 2024155
Dec 2024163
Jan 2025170
Feb 2025146
Mar 2025127
Apr 202590
May 202578
Jun 202581
Jul 202566


Annual AQI Trends

2020
94AQI
2021
123AQI
31%
Rise
2022
114AQI
-7%
Fall
2023
117AQI
3%
Rise
2024
118AQI
0.8%
Rise
2025
112AQI
-5%
Fall
Overall Annual Percentage (%) change of AQI in (2020 to 2025)
4%
Rise (Worsened AQI)

Most & Least Polluted Months

Most PollutedDecember, 2020231AQI

Least PollutedJuly, 202249AQI

* This data analysis is from year 2020 - 2025

Kolkata's Locations

Real-time Air Pollution Level

Location
Status
AQI
PM2.5(µg/m³)
PM10(µg/m³)
Temp.(°C)
Humi.(%)
Ballygunge
Moderate
65
17
37
29
91
Bidhannagar
Moderate
66
17
37
28
88
Chetla
Moderate
66
17
38
29
89
Dhakuria
Moderate
65
17
36
28
89
Fort William
Moderate
66
17
38
29
89
Jadavpur
Moderate
76
23
41
30
89
Kolkata US Consulate
Moderate
66
17
37
29
89
Kulia
Moderate
66
17
36
29
89
Rabindra Bharati University
Moderate
65
17
38
29
85
Rabindra Sarobar
Moderate
66
17
38
29
89
Tangra
Moderate
66
17
37
28
89
Victoria
Moderate
65
17
38
28
89

India's Metro Cities

Air Quality Index

Ahmedabad City AQI

Ahmedabad

86

temp.32°C

hum.67%
Bangalore City AQI

Bangalore

67

temp.28°C

hum.62%
Chennai City AQI

Chennai

73

temp.33°C

hum.63%
Hyderabad City AQI

Hyderabad

81

temp.31°C

hum.59%
Kolkata City AQI

Kolkata

66

temp.32°C

hum.75%
Mumbai City AQI

Mumbai

87

temp.30°C

hum.75%
New Delhi City AQI

New Delhi

82

temp.30°C

hum.75%
Pune City AQI

Pune

69

temp.26°C

hum.69%

Air Quality Calendar 2025

Kolkata

2025
AQI
January
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
29 Dec
-
30 Dec
-
31 Dec
-
1 Jan
182
2 Jan
165
3 Jan
181
4 Jan
178
5 Jan
176
6 Jan
169
7 Jan
174
8 Jan
153
9 Jan
160
10 Jan
177
11 Jan
185
12 Jan
187
13 Jan
189
14 Jan
180
15 Jan
169
16 Jan
169
17 Jan
167
18 Jan
167
19 Jan
160
20 Jan
164
21 Jan
171
22 Jan
179
23 Jan
179
24 Jan
177
25 Jan
177
26 Jan
156
27 Jan
167
28 Jan
171
29 Jan
159
30 Jan
147
31 Jan
143
1 Feb
139
February
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
26 Jan
156
27 Jan
167
28 Jan
171
29 Jan
159
30 Jan
147
31 Jan
143
1 Feb
139
2 Feb
156
3 Feb
158
4 Feb
155
5 Feb
167
6 Feb
153
7 Feb
147
8 Feb
152
9 Feb
157
10 Feb
161
11 Feb
148
12 Feb
142
13 Feb
145
14 Feb
150
15 Feb
154
16 Feb
143
17 Feb
126
18 Feb
130
19 Feb
132
20 Feb
123
21 Feb
133
22 Feb
128
23 Feb
133
24 Feb
142
25 Feb
152
26 Feb
151
27 Feb
163
28 Feb
157
1 Mar
134
March
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
23 Feb
133
24 Feb
142
25 Feb
152
26 Feb
151
27 Feb
163
28 Feb
157
1 Mar
134
2 Mar
140
3 Mar
137
4 Mar
130
5 Mar
141
6 Mar
126
7 Mar
148
8 Mar
139
9 Mar
135
10 Mar
136
11 Mar
121
12 Mar
131
13 Mar
119
14 Mar
116
15 Mar
105
16 Mar
100
17 Mar
107
18 Mar
109
19 Mar
136
20 Mar
104
21 Mar
124
22 Mar
88
23 Mar
124
24 Mar
133
25 Mar
146
26 Mar
122
27 Mar
129
28 Mar
137
29 Mar
144
30 Mar
139
31 Mar
123
1 Apr
112
2 Apr
98
3 Apr
99
4 Apr
114
5 Apr
114
April
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
30 Mar
139
31 Mar
123
1 Apr
112
2 Apr
98
3 Apr
99
4 Apr
114
5 Apr
114
6 Apr
104
7 Apr
85
8 Apr
78
9 Apr
69
10 Apr
69
11 Apr
74
12 Apr
74
13 Apr
90
14 Apr
91
15 Apr
94
16 Apr
100
17 Apr
82
18 Apr
77
19 Apr
90
20 Apr
90
21 Apr
90
22 Apr
94
23 Apr
103
24 Apr
91
25 Apr
84
26 Apr
73
27 Apr
90
28 Apr
104
29 Apr
80
30 Apr
86
1 May
84
2 May
82
3 May
80
May
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
27 Apr
90
28 Apr
104
29 Apr
80
30 Apr
86
1 May
84
2 May
82
3 May
80
4 May
81
5 May
80
6 May
83
7 May
92
8 May
94
9 May
95
10 May
111
11 May
111
12 May
102
13 May
95
14 May
91
15 May
84
16 May
80
17 May
77
18 May
69
19 May
63
20 May
62
21 May
64
22 May
73
23 May
66
24 May
67
25 May
61
26 May
59
27 May
61
28 May
60
29 May
60
30 May
64
31 May
82
June
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1 Jun
89
2 Jun
108
3 Jun
98
4 Jun
86
5 Jun
87
6 Jun
94
7 Jun
105
8 Jun
110
9 Jun
106
10 Jun
105
11 Jun
91
12 Jun
76
13 Jun
74
14 Jun
78
15 Jun
73
16 Jun
66
17 Jun
65
18 Jun
66
19 Jun
67
20 Jun
69
21 Jun
75
22 Jun
82
23 Jun
78
24 Jun
71
25 Jun
70
26 Jun
64
27 Jun
63
28 Jun
68
29 Jun
68
30 Jun
71
1 Jul
69
2 Jul
63
3 Jul
67
4 Jul
69
5 Jul
71
July
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
29 Jun
68
30 Jun
71
1 Jul
69
2 Jul
63
3 Jul
67
4 Jul
69
5 Jul
71
6 Jul
67
7 Jul
64
8 Jul
62
9 Jul
64
10 Jul
63
11 Jul
64
12 Jul
-
13 Jul
-
14 Jul
-
15 Jul
-
16 Jul
-
17 Jul
-
18 Jul
-
19 Jul
-
20 Jul
-
21 Jul
-
22 Jul
-
23 Jul
-
24 Jul
-
25 Jul
-
26 Jul
-
27 Jul
-
28 Jul
-
29 Jul
-
30 Jul
-
31 Jul
-
1 Aug
-
2 Aug
-
Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+

Health Advice For People Living In

Kolkata

0Cigarettes per day

Weekly 0 Cigarettes
Monthly 0 Cigarettes

Breathe easy and get active! The air quality is perfect for enjoying outdoor activities.

Source:

Berkeley Earth


Solutions for Current AQI

  • Air Purifier
    Air PurifierTurn On
  • Car Filter
    Car FilterMust
  • N95 Mask
    N95 MaskMust
  • Stay Indoor
    Stay IndoorMust


Must turn on the air purifier to enjoy fresh air.

Get an Air Purifier

Prevent Health Problems: Understand Your Risks

Kolkata

  • asthma due to air pollution in KolkataAsthma
  • heart due to air pollution in KolkataHeart Issues
  • allergy due to air pollution in KolkataAllergies
  • sinus due to air pollution in KolkataSinus
  • flu due to air pollution in KolkataCold/Flu
  • copd due to air pollution in KolkataChronic (COPD)
asthma due to air pollution in Kolkata

Mid. Chances of Asthma

Asthma

Risk of Asthma symptoms is Mid. when AQI is Moderate (50-150)

Moderate symptoms including frequent wheezing, noticeable shortness of breath, chest tightness, and persistent cough.

Do's :

  • Limit outdoor activities when AQI is poor.

  • Clean indoor air with an air purifier to reduce exposure.

  • Soothe the respiratory tract with herbal teas or warm water to help alleviate symptoms.

Don'ts :

  • Exercise outdoors without a mask.

  • Stay in smoky areas with strong fumes.

Most Polluted Cities 2025

India

Analyze the real-time most air polluted cities in the country.

Most Polluted Cities Live Ranking 2025
World's Most PollutedCity Rankings (2024)
World's Most PollutedCountry Rankings(2024)
RankCityAQIAQI Status

Standard Value

Follow

1.

Amravati, India

144
Poor
10xabove Standard

2.

Aligarh, India

122
Poor
8xabove Standard

3.

Nanded, India

118
Poor
8xabove Standard

4.

Akola, India

112
Poor
7xabove Standard

5.

Thane, India

111
Poor
7xabove Standard

6.

Gwalior, India

108
Poor
7xabove Standard

7.

Vadodara, India

101
Poor
7xabove Standard

8.

Ulhasnagar, India

99
Moderate
7xabove Standard

9.

Bhiwandi, India

97
Moderate
6xabove Standard

10.

Narnaul, India

95
Moderate
6xabove Standard

Last Updated: 12 Jul 2025, 01:24 PM

AQI City Rankings

Air Quality Solutions For Kolkata

Explore the solutions of air quality monitoring & clean air.

Here are some applications that you can go through to find out the solutions.

Air Quality Monitor

Air Quality Monitor

Monitor the air quality
Air Quality Sensors

Air Quality Sensors

Sensors to measure the air quality
Fresh Air Machine

Fresh Air Machine

Clean the air you breathe
Car Cabin Filter

Car Cabin Filter

Purify the air in your car
N95 Mask

N95 Mask

Shield yourself from pollution
air quality solutions for offices for Kolkata

Air Quality Solution For Offices

A complete solution for air quality monitoring, data analysis, and fresh air solutions in workplaces prioritizing employee's health and productivity.

air quality solutions for smart-city for Kolkata

Air Quality Solutions For Smart City

Prana Air smart city project provides air quality monitors, drones, outdoor air purifiers, and data dashboards solution to improve air quality.

air quality solutions for institutes for Kolkata

Air Quality Solutions for Schools | Institutes

Prana Air provides the air quality solutions for schools by air monitoring & fresh air machine that help the students to breather clean air.

air quality solutions for hotels for Kolkata

Air Quality Solutions For Hotels

Prana Air air quality solutions are suited for hotel businesses. The occupancy of hotels is the main reasons for bad air quality.

air quality solutions for restaurants for Kolkata

Air Quality Solutions for Restaurants

Prana Air has the air quality solutions for restaurant, cafes, and gives you the power to know what your customers and staff breathe.

air quality solutions for rmc-plants for Kolkata

Air Quality Solutions for RMC Plants

Prana Air provides air quality monitoring solutions for RMC plants. Improve compliance, protect workers and community, and reduce emissions.

air quality solutions for fitness-center for Kolkata

Air Quality Solutions for Fitness Center

Prana Air provides the air quality solutions of pollution monitoring and fresh air for fitness center - gym.

air quality solutions for parking-lot for Kolkata

Air Quality Solutions for Parking Lot

A complete solution for air monitoring, data analysis, and fresh air solutions for enclosed car parking areas and car lots.

air quality solutions for retail-stores for Kolkata

Air Quality Solutions for Retail Stores

Prana Air provides air quality solutions of pollution monitoring and fresh air for retail stores and shopping outlets.

air quality solutions for airport for Kolkata

Prana Air provides air quality solutions of pollution monitoring and fresh air for retail stores and shopping outlets

Prana Air provides the air quality solutions for airport. Gathering of many passengers is the main reasons of bad air quality in airport.

air quality solutions for construction-sites for Kolkata

Air Quality Solutions For Construction Sites

Prana Air offers air quality monitoring solutions for construction sites with data cloud storage, web-dashboard, mobile apps, TV display.

air quality solutions for hospitals for Kolkata

Air Quality Solutions For Hospitals

Prana Air provides air quality monitoring and fresh air solutions for hospitals to ensure clean and healthy indoor air.

air quality solutions for bathroom for Kolkata

Air Quality Solutions For Washroom | Bathroom

Improve washroom and bathroom air quality with Prana Air air quality monitoring devices and fresh air machine. Breathe easy and stay healthy.

air quality solutions for banks for Kolkata

Air Quality Solutions for Banks

Prana Air provides air quality solutions of pollution monitoring and fresh air for banks and financial institutions.

air quality solutions for cinema for Kolkata

Air Quality Solutions for Cinema

Air quality solutions for cinema halls or theatres will help the customers to get the good experience, comfort and breathe clean air.

air quality solutions for real-estates for Kolkata

Air Quality Solutions For Real Estates

Prana Air provides the air quality solutions of pollution monitoring and fresh air for real estates - residential and commercial.

Kolkata's AQI Data Analytics Solutions

Air quality data monitoring platforms

Mobile AppMobile App
Smart TV AppSmart TV App
Web DashboardWeb Dashboard
APIAPI
WidgetsWidgets
aqi air quality app for Kolkata
Mobile App

Empower Your Decisions with Reliable Data

Get it onApp Store
Get it onGoogle Play
Your area’s real-time data with detailed parameters.

Your area’s real-time data with detailed parameters.


Personalized health advice as per current AQI.

Personalized health advice as per current AQI.


Analytical data to identify trends and conditions.

Analytical data to identify trends and conditions.


Connect and control your air quality devices.

Connect and control your air quality devices.


Air Quality FAQs

at Kolkata

Frequently Asked Questions About Air Quality

What is the current AQI level in Kolkata?

The current real-time AQI level in Kolkata is 66 (Moderate). This was last updated 2025-07-12 06:40:28 PM (Local Time).

When was the best AQI level in Kolkata in the last 24 hours?

The best AQI level was 63 (Moderate) at 1:09 AM (Local Time) during the last 24 hours.

When was the worst AQI level in Kolkata in the last 24 hours?

The worst AQI level was 75 (Moderate) at 3:09 PM (Local Time) during the last 24 hours.

What is the current trend of AQI levels in Kolkata during last 24 hours?

The AQI levels in Kolkata have been fluctuating throughout the last 24 hours. The levels have increased by highest 75 at 3:09 PM (Local Time), lowest 63 at 1:09 AM (Local Time).

What actions are recommended as per the current AQI level in Kolkata?

Current AQI levels are acceptable; however, some pollutants may be a concern for a small number of sensitive individuals.

Recent AQI Blogs

Read the latest news

Here are some latest blogs that you can go through to find out more air pollution.

Air Pollution and Lung Cancer: How Toxic Air is Mutating Your DNA?

Air Pollution and Lung Cancer: How Toxic Air is Mutating Your DNA?

7 Jul 2025Shakshi
Can Banning Old Vehicles Really Improve Delhi’s Air Quality? Here’s What the Data Says

Can Banning Old Vehicles Really Improve Delhi’s Air Quality? Here’s What the Data Says

4 Jul 2025Gyane Haobijam
Arizona Dust Storm 2025: How the Sudden Storm Pushed AQI to Hazardous Levels?

Arizona Dust Storm 2025: How the Sudden Storm Pushed AQI to Hazardous Levels?

2 Jul 2025Shakshi
Air Pollution Comparison Between England vs India: What a 45% Asthma Spike in the UK Reveals

Air Pollution Comparison Between England vs India: What a 45% Asthma Spike in the UK Reveals

1 Jul 2025Shakshi
Urban Heat Islands in India: The 2024 Climate Crisis in Metro Cities

Urban Heat Islands in India: The 2024 Climate Crisis in Metro Cities

24 Jun 2025Shakshi
Delhi AQI Drops After Months: How Rain Provided Temporary Relief in Pollution Levels 

Delhi AQI Drops After Months: How Rain Provided Temporary Relief in Pollution Levels 

19 Jun 2025Shakshi
AQI.IN Launched First Ever City-Level Climate Change Severity Index -June 2025

AQI.IN Launched First Ever City-Level Climate Change Severity Index -June 2025

19 Jun 2025Gyane Haobijam
Noise Pollution in Ocean: The Silent Threat Beneath the Waves

Noise Pollution in Ocean: The Silent Threat Beneath the Waves

17 Jun 2025Shakshi
Heat Alert in Delhi: “Feels Like” 49 °C Amid Heatwaves & Dust Storm

Heat Alert in Delhi: “Feels Like” 49 °C Amid Heatwaves & Dust Storm

10 Jun 2025Shakshi
Wildfire Smoke in Canada 2025: AQI Impact, Orange Skies, and What to Do

Wildfire Smoke in Canada 2025: AQI Impact, Orange Skies, and What to Do

9 Jun 2025Shakshi
Prana Air Logo

Prana Sense

Air Quality Monitor

Air Quality Index depicts the extent of air pollution at a particular location.

Prana Sense Air Quality MonitorPrana Sense Air Quality Monitor
Prana Air Logo

Pocket PM

Air Quality Monitor

Know the air quality around you wherever you are with the Pocket monitor to get instant air quality insights.

Pocket PM Air Quality MonitorPocket PM Air Quality Monitor
Prana Air Logo

Cair +

Indoor Air Quality Monitor

Track indoor air quality with advanced connectivity and portability for real-time air quality data.

Cair + Indoor Air Quality MonitorCair + Indoor Air Quality Monitor