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Kolkata Air Quality Index (AQI) | Air Pollution

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

Last Updated: 2025-10-08 06:52:15 AM (Local Time)

location image
Live AQI
100(AQI-US)
Air Quality is
Moderate
pm10 :  70 µg/m³
PM2.5 :  34 µg/m³
Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+
aqi moderate level.webp in Kolkata
partly cloudy

26 °C

Partly Cloudy
Humidity
Humidity88 %

Wind Speed
Wind Speed7 km/h

UV Index
UV Index0
Last Updated: 2025-10-08 06:52:15 AM (Local Time)


Map

Kolkata

Major Air Pollutants

Kolkata

AQI Graph

Historical Air Quality Data

Kolkata

Kolkata
AQI
.
07-10-2025Time08-10-2025
97
Min.at 2:04 AM on 8th Oct
125
Max.at 5:10 PM on 7th Oct

Download 2024 Annual Data

World Air Quality Report

Globe

AQI Trends - Annual Air Quality Changes

Kolkata, West Bengal, India

Year
.
AQI


Annual AQI Trends

2020
94AQI
2021
123AQI
31%
Rise
2022
114AQI
-7%
Fall
2023
117AQI
3%
Rise
2024
118AQI
0.8%
Rise
2025
100AQI
-15%
Fall
Overall Annual Percentage (%) change of AQI in (2020 to 2025)
2%
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.(%)
Moderate
81
25
55
28
100
Moderate
94
32
63
31
100
Moderate
73
21
53
23
100
Moderate
88
29
83
35
100
Poor
129
47
58
27.1
45
Moderate
90
30
58
38
98
Poor
149
55
83
37
100
Moderate
86
28
57
34
100
Poor
102
36
70
30
89
Poor
132
48
60
27.3
45
Moderate
64
16
54
15
100
Poor
112
40
75
32
100
Moderate
90
30
70
27
100

India's Metro Cities

Air Quality Index

Health Advice For People Living In

Kolkata

1.7Cigarettes per day

Cigarette
Weekly 11.9 Cigarettes
Monthly 51 Cigarettes

Breathing the air in this location is as harmful as smoking 1.7 cigarettes a day.

Source:

Berkeley Earth

Disclaimer: This cigarette-equivalent estimate is based on the average PM2.5 concentration over the last 24 hours, assuming continuous exposure during that time.

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

Mild Chances of Asthma

Asthma

Risk of Asthma symptoms is Mild 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.

Disclaimer: The above health risks are precautionary suggestions based on current AQI levels. You may not feel the effects immediately, but prolonged exposure to air pollution can contribute to these health conditions over time. AQI.IN is neither a medical expert nor a provider of medical advice. Please consult a doctor if you experience any of the above similar symptoms.

Most Polluted Cities 2025

India

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

Kolkata's AQI Data Analytics Solutions

Air quality data monitoring platforms

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aqi air quality app for Kolkata
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Empower Your Decisions with Reliable Data

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.

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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 100 (Moderate). This was last updated 2025-10-08 06:52:15 AM (Local Time).

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

The best AQI level was 97 (Moderate) at 2:04 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 125 (Poor) at 5:10 PM, Oct 7, 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 125 at 5:10 PM, Oct 7, 2025 (Local Time), lowest 97 at 2:04 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.