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Chennai Air Quality Index (AQI) | Air Pollution

Real-time PM2.5, PM10 air pollution level in Tamil Nadu

Last Updated: 2025-10-20 06:10:21 AM (Local Time)

location image
Live AQI
98(AQI-US)
Air Quality is
Moderate
pm10 :  51 µg/m³
PM2.5 :  34 µg/m³
Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+
aqi moderate level.webp in Chennai
patchy rain possible

27 °C

Patchy rain nearby
Humidity
Humidity85 %

Wind Speed
Wind Speed11 km/h

UV Index
UV Index0
Last Updated: 2025-10-20 06:10:21 AM (Local Time)


Map

Chennai

Major Air Pollutants

Chennai

AQI Graph

Historical Air Quality Data

Chennai

Chennai
AQI
.
19-10-2025Time20-10-2025
91
Min.at 4:04 PM on 19th Oct
183
Max.at 11:04 PM on 19th Oct

Download 2024 Annual Data

World Air Quality Report

Globe

AQI Trends - Annual Air Quality Changes

Chennai, Tamil Nadu, India

Year
.
AQI


Annual AQI Trends

2020
86AQI
2021
81AQI
-6%
Fall
2022
85AQI
5%
Rise
2023
90AQI
6%
Rise
2024
83AQI
-8%
Fall
2025
86AQI
4%
Rise
Overall Annual Percentage (%) change of AQI in (2020 to 2025)
0%
No Change

Most & Least Polluted Months

Most PollutedJanuary, 2020133AQI

Least PollutedMay, 202153AQI

* This data analysis is from year 2020 - 2025

Chennai's Locations

Real-time Air Pollution Level

Location
Status
AQI
PM2.5(µg/m³)
PM10(µg/m³)
Temp.(°C)
Humi.(%)
Poor
102
36
66
26
94
Moderate
92
31
64
26
94
Poor
105
37
57
26
94
Moderate
97
34
46
26
94
Moderate
94
32
67
26
94
Moderate
82
26
38
26
94
Moderate
84
27
36
26
94
Poor
112
40
56
26
94
Moderate
84
27
40
26
94
Moderate
97
34
50
26
94
Moderate
90
30
46
26
94
Poor
144
53
87
26
94
Poor
110
39
48
26
94
Moderate
82
26
31
25.3
45
Moderate
96
33
43
26
94
Moderate
94
32
36
26
94
Moderate
86
28
41
26
94
Moderate
94
32
40
26
94
Moderate
79
24
35
26
94
Moderate
79
24
43
26
94
Unhealthy
160
68
78
24.6
45
Moderate
99
35
39
26
94
Moderate
86
28
35
25.3
45
Moderate
99
35
61
26
94
Poor
110
39
70
26
94
Moderate
90
30
77
26
94

India's Metro Cities

Air Quality Index

Health Advice For People Living In

Chennai

2.3Cigarettes per day

Cigarette
Weekly 16 Cigarettes
Monthly 69 Cigarettes

Breathing the air in this location is as harmful as smoking 2.3 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

Chennai

  • asthma due to air pollution in ChennaiAsthma
  • heart due to air pollution in ChennaiHeart Issues
  • allergy due to air pollution in ChennaiAllergies
  • sinus due to air pollution in ChennaiSinus
  • flu due to air pollution in ChennaiCold/Flu
  • copd due to air pollution in ChennaiChronic (COPD)
asthma due to air pollution in Chennai

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.

Chennai'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 Chennai
Mobile App

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.

Connect and control your air quality devices.


Air Quality FAQs

at Chennai

Frequently Asked Questions About Air Quality

What is the current AQI level in Chennai?

The current real-time AQI level in Chennai is 98 (Moderate) due to recent rainfall by 1.6mm/hr. This was last updated 2025-10-20 06:10:21 AM (Local Time).

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

The best AQI level was 91 (Moderate) at 4:04 PM, Oct 19, 2025 (Local Time) during the last 24 hours.

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

The worst AQI level was 183 (Unhealthy) at 11:04 PM, Oct 19, 2025 (Local Time) during the last 24 hours.

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

The AQI levels in Chennai have been fluctuating throughout the last 24 hours. The levels have increased by highest 183 at 11:04 PM, Oct 19, 2025 (Local Time), lowest 91 at 4:04 PM, Oct 19, 2025 (Local Time).

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

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