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Chennai Air Quality Index (AQI) | Air Pollution

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

Last Updated: 2025-10-14 05:16:40 PM (Local Time)

location image
Live AQI
76(AQI-US)
Air Quality is
Moderate
pm10 :  43 µg/m³
PM2.5 :  22 µg/m³
Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+
aqi moderate level.webp in Chennai
partly cloudy

31 °C

Partly cloudy
Humidity
Humidity75 %

Wind Speed
Wind Speed17 km/h

UV Index
UV Index0
Last Updated: 2025-10-14 05:16:40 PM (Local Time)


Map

Chennai

Major Air Pollutants

Chennai

AQI Graph

Historical Air Quality Data

Chennai

Chennai
AQI
.
13-10-2025Time14-10-2025
74
Min.at 2:04 PM on 14th Oct
128
Max.at 5:28 PM on 13th 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.(%)
Moderate
73
21
42
40
70
Moderate
82
26
39
38
83
Moderate
75
22
41
41
80
Moderate
71
20
54
38
92
Moderate
53
10
45
30
89
Poor
102
36
44
36
89
Poor
119
43
45
34
100
Moderate
64
16
44
32
81
Moderate
62
15
44
38
93
Moderate
68
18
52
37
74
Moderate
73
21
50
38
84
Moderate
60
14
30
33
95
Moderate
55
11
17
32
85
Moderate
66
17
18
28.8
45
Moderate
69
19
41
33
77
Moderate
66
17
62
36
87
Poor
124
45
52
33
97
Good
50
8
54
38
79
Moderate
90
30
37
34
80
Good
44
8
27
37
99
Moderate
58
13
14
30.4
45
Moderate
66
17
34
36
62
Unhealthy
151
56
66
36.7
45
Moderate
68
18
42
43
66
Moderate
90
30
58
35
99
Moderate
88
29
62
39
94

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 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

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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 76 (Moderate). This was last updated 2025-10-14 05:16:40 PM (Local Time).

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

The best AQI level was 74 (Moderate) at 2:04 PM (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 128 (Poor) at 5:28 PM, Oct 13, 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 128 at 5:28 PM, Oct 13, 2025 (Local Time), lowest 74 at 2:04 PM (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.