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Chennai Air Quality Index (AQI) | Air Pollution

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

Last Updated: 2025-10-09 02:11:39 PM (Local Time)

location image
Live AQI
104(AQI-US)
Air Quality is
Poor
pm10 :  78 µg/m³
PM2.5 :  37 µg/m³
Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+
aqi poor level.webp in Chennai
mist

33 °C

Mist
Humidity
Humidity67 %

Wind Speed
Wind Speed21 km/h

UV Index
UV Index4
Last Updated: 2025-10-09 02:11:39 PM (Local Time)


Map

Chennai

Major Air Pollutants

Chennai

AQI Graph

Historical Air Quality Data

Chennai

Chennai
AQI
.
08-10-2025Time09-10-2025
90
Min.at 5:04 AM on 9th Oct
122
Max.at 11:04 AM on 9th 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
85AQI
2%
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.(%)
Moderate
97
34
67
40
77
Poor
102
36
58
35
68
Moderate
99
35
69
43
64
Moderate
96
33
93
36
90
Poor
107
38
121
40
74
Poor
112
40
100
45
90
Poor
134
49
54
34
88
Poor
102
36
70
37
79
Moderate
96
33
84
32
75
Poor
115
41
99
37
63
Moderate
99
35
73
32
83
Moderate
81
25
80
42
84
Moderate
96
33
55
40
77
Poor
127
46
54
34.3
45
Poor
117
42
99
34
71
Moderate
99
35
74
33
81
Poor
129
47
120
46
80
Poor
127
46
86
40
95
Moderate
97
34
100
40
77
Moderate
96
33
107
41
88
Moderate
96
33
39
33.3
45
Moderate
97
34
64
36
67
Moderate
97
34
40
32.9
45
Moderate
94
32
53
36
75
Poor
110
39
88
46
84
Moderate
84
27
73
35
70

India's Metro Cities

Air Quality Index

Health Advice For People Living In

Chennai

1.6Cigarettes per day

Cigarette
Weekly 11.2 Cigarettes
Monthly 48 Cigarettes

Breathing the air in this location is as harmful as smoking 1.6 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 Poor (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
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aqi air quality app for Chennai
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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.

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 104 (Poor) due to recent rainfall by 0.23mm/hr. This was last updated 2025-10-09 02:11:39 PM (Local Time).

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

The best AQI level was 90 (Moderate) at 5:04 AM (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 122 (Poor) at 11:04 AM (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 122 at 11:04 AM (Local Time), lowest 90 at 5:04 AM (Local Time).

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

Current AQI levels are unhealthy for Sensitive individuals, they should reduce prolonged or heavy outdoor exertion.