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Kolkata Air Quality Index (AQI) | Air Pollution

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

Last Updated: 2025-05-30 11:55:05 AM (Local Time)

Live AQI

Air Quality is

Moderate

pm10 : 30 µg/m³

PM2.5 : 12 µg/m³

Good

050

Moderate

100

Poor

150

Unhealthy

200

Severe

300

Hazardous

301+

32 °C

Last Updated: 2025-05-30 11:55:05 AM (Local Time)

Map

Kolkata

Major Air Pollutants
Kolkata

Particulate Matter(PM2.5)

12µg/m³

Particulate Matter(PM10)

30µg/m³

Carbon Monoxide(CO)

337ppb

Sulfur Dioxide(SO2)

2ppb

Nitrogen Dioxide(NO2)

10ppb

Ozone(O3)

21ppb

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AQI Graph

Historical Air Quality Data
Kolkata

24 Hours

AQI

Kolkata

Want air quality data?

AQI Trends - Annual Air Quality Changes
Kolkata, West Bengal, India

AQI

Year

AQI

Annual AQI Trends

2020

94AQI

2021

123AQI

31%

Rise

2022

114AQI

-7%

Fall

2023

117AQI

Rise

2024

118AQI

0.85%

Rise

2025

123AQI

Rise

Overall Annual Percentage (%) change of AQI in (2020 to 2025)

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

Bidhannagar

Moderate

Chetla

Moderate

Dhakuria

Moderate

Fort William

Moderate

Jadavpur

Moderate

Kolkata US Consulate

Moderate

Kulia

Moderate

Rabindra Bharati University

Moderate

Rabindra Sarobar

Moderate

Tangra

Moderate

Victoria

Moderate

India's Metro Cities
Air Quality Index

Ahmedabad

120

Bangalore

Chennai

Hyderabad

Kolkata

Mumbai

New Delhi

155

temp.32°C

hum.46%

Pune

107

temp.28°C

hum.64%

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 -	31 May -

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 PurifierTurn On
Car FilterMust
N95 MaskMust
Stay IndoorMust

Must turn on the air purifier to enjoy fresh air.

Prevent Health Problems: Understand Your Risks

Kolkata

Asthma
Heart Issues
Allergies
Sinus
Cold/Flu
Chronic (COPD)

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

Ahilyanagar, India

Dharuhera, India

Bhiwadi, India

Kota, India

Jodhpur, India

Gurgaon, India

New Delhi, India

Pali, India

Etawah, India

10.

Ghaziabad, India

Unhealthy

10xabove Standard

Last Updated: 30 May 2025, 06:31 AM

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

Monitor the air quality

Air Quality Sensors

Sensors to measure the air quality

Fresh Air Machine

Clean the air you breathe

Car Cabin Filter

Purify the air in your car

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

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

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

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

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

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

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

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

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

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

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

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

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 App

Smart TV App

Web Dashboard

API

Widgets

Mobile App

Empower Your Decisions with Reliable Data

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

Personalized health advice as per current AQI.

Analytical data to identify trends and conditions.

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 56 (Moderate) due to recent rainfall by 1.09mm/hr. This was last updated 2025-05-30 11:55:05 AM (Local Time).

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

The best AQI level was 52 (Moderate) at 6:09 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 74 (Moderate) at 4:09 PM, May 29, 2025 (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 74 at 4:09 PM, May 29, 2025 (Local Time), lowest 52 at 6:09 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.