AQIHistoryPM₂.₅PM₁₀COSO₂NO₂O₃
View aqi PageAQIView weather PageWeather
Live

Chennai Air Quality Index (AQI) | Air Pollution

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

Last Updated: 2026-09-25 18:41:01 (Local Time)

location image
Live AQI
85AQI (US)
Air Quality is
Moderate
PM2.5 :  28 µg/m³
pm10 :  74 µg/m³
Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+
aqi moderate level.webp in Chennai
light rain shower

30 °C

Rain Shower
Humidity
Humidity61 %
Wind Speed
Wind Speed9.7 km/h
UV Index
UV Index0
Last Updated: 2026-09-25 18:41:01 (Local Time)
Rank269th

Currently, Chennai ranks 269th among the cities with the highest AQI levels in the world.

Map

Chennai

Major Air Pollutants

Chennai

PM₂.₅'s Icon

Particulate Matter(PM₂.₅)

28µg/m³

PM₁₀'s Icon

Particulate Matter(PM₁₀)

74µg/m³

CO's Icon

Carbon Monoxide(CO)

145ppb

SO₂'s Icon

Sulfur Dioxide(SO₂)

2ppb

NO₂'s Icon

Nitrogen Dioxide(NO₂)

25ppb

O₃'s Icon

Ozone(O₃)

29ppb

Trending in India

Delhi’s AQI Dropped Overnight. But Why? 🌬️

Delhi’s AQI Dropped Overnight. But Why? 🌬️

Delhi’s Pollution Season Is Arriving Early This Year

Delhi’s Pollution Season Is Arriving Early This Year

AQI Graph

Historical Air Quality Data

Chennai

24 Hours
AQI (US)
Chennai
AQI (US)
.
24-09-2026Time25-09-2026
69
Min. AQI (US)4:01am
94
Max. AQI (US)8:01pm

Want air quality data?

AQI (US) Trends - Annual Air Quality Changes

Chennai, Tamil Nadu, India

AQI (US)

Chennai's Locations

Real-time Air Pollution Level

locations
Status
AQI (US)
PM₂.₅(µg/m³)
PM₁₀(µg/m³)
Temp.(°C)
Humi.(%)
Moderate
93
32
79
31
66
Moderate
88
30
78
31
66
Moderate
86
29
73
31
66
Moderate
81
25
88.79
31
66
Moderate
88
30
81
31
66
Moderate
79
24
96.23
31
66
Moderate
75
22
84.56
31
66
Moderate
82
27
66
31
66
Moderate
88
29
80.61
31
66
Moderate
78
25
73
31
66
Moderate
71
22
46
31
53
Moderate
75
22
24
31
53
Moderate
99
35
77
31
66
Moderate
82
27
81
31
66
Moderate
80
26
66
31
66
Moderate
77
23
90.18
31
66
Poor
111
40
73
30
61
Moderate
80
26
78
31
66
Moderate
73
23
72
31
66
Moderate
79
24
89.63
31
66
Moderate
84
27
86.67
31
66
Moderate
82
27
75
31
66
Moderate
82
26
92.17
31
66
Moderate
86
28
70.77
31
66
Poor
106
38
67
30
61
Moderate
78
25
75
31
66
Moderate
81
25
76.71
31
66
Moderate
81
25
90.73
31
66
Moderate
88
29
85.06
31
66
Moderate
82
27
73
31
66
Moderate
71
20
22
31
53
Moderate
99
35
72
30
61
Moderate
84
27
95.92
31
66
Moderate
84
28
73
31
66
Moderate
80
26
74
31
66
Moderate
90
30
100.09
31
66
Moderate
90
31
82
31
66
Moderate
71
22
58
31
53
Moderate
84
27
31
31
53
Moderate
88
30
70
31
66
Poor
119
43
54
31
53

India's Metro Cities

Air Quality Index

Ahmedabad City AQI

Ahmedabad

107

temp.30°C
hum.53%
Bangalore City AQI

Bangalore

76

temp.24°C
hum.66%
Chennai City AQI

Chennai

85

temp.30°C
hum.61%
Hyderabad City AQI

Hyderabad

129

temp.29°C
hum.63%
Kolkata City AQI

Kolkata

72

temp.27°C
hum.88%
Mumbai City AQI

Mumbai

93

temp.28°C
hum.78%
New Delhi City AQI

New Delhi

90

temp.32°C
hum.44%
Pune City AQI

Pune

100

temp.21°C
hum.88%

Air Quality Calendar 2026

Chennai

2026
AQI (US)
Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+

Health Advice For People Living In

Chennai

1.2Cigarettes per day

Cigarette
Weekly 8.4 Cigarettes
Monthly 36 Cigarettes

Breathing the air in this location is as harmful as smoking 1.2 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 (US)

Air Purifier
Air PurifierTurn On
Car Filter
Car FilterMust
N95 Mask
N95 MaskMust
Stay Indoor
Stay IndoorMust

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)
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 2026

India

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

Most Polluted Cities Live Ranking 2026
World's Most PollutedCity Rankings (2025)
World's Most PollutedCountry Rankings(2025)
RankCityAQI Status

Standard Value

Follow

1.

Coimbatore, Tamil Nadu

183

Unhealthy

7xabove Standard

2.

Pali, Rajasthan

178

Unhealthy

7xabove Standard

3.

Amritsar, Punjab

178

Unhealthy

6xabove Standard

4.

Jammu, Jammu And Kashmir

174

Unhealthy

6xabove Standard

5.

Faridkot, Punjab

167

Unhealthy

5xabove Standard

6.

Jalandhar, Punjab

165

Unhealthy

5xabove Standard

7.

Udaipur, Rajasthan

165

Unhealthy

6xabove Standard

8.

Sri Ganganagar, Rajasthan

163

Unhealthy

5xabove Standard

9.

Ludhiana, Punjab

160

Unhealthy

5xabove Standard

10.

Aurangabad, Maharashtra

158

Unhealthy

5xabove Standard

Last Updated: 25 Sept 2026, 01:18 PM

AQI City Rankings

Air Quality Solutions For Chennai

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

Air Quality Monitor

Monitor the air quality
Air Quality Sensors

Air Quality Sensors

Sensors to measure the air quality
Fresh Air Machine

Fresh Air Machine

Clean the air you breathe
Car Cabin Filter

Car Cabin Filter

Purify the air in your car
N95 Mask

N95 Mask

Shield yourself from pollution
Prana Air offers the solutions of air quality monitoring and clean air machine for Chennai

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.

Prana Air offers the solutions of air quality monitoring and clean air machine for Chennai

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.

Prana Air offers the solutions of air quality monitoring and clean air machine for Chennai

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.

Prana Air offers the solutions of air quality monitoring and clean air machine for Chennai

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.

Prana Air offers the solutions of air quality monitoring and clean air machine for Chennai

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.

Prana Air offers the solutions of air quality monitoring and clean air machine for Chennai

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.

Prana Air offers the solutions of air quality monitoring and clean air machine for Chennai

Air Quality Solutions for Fitness Center

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

Prana Air offers the solutions of air quality monitoring and clean air machine for Chennai

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.

Prana Air offers the solutions of air quality monitoring and clean air machine for Chennai

Air Quality Solutions for Retail Stores

Prana Air provides air quality solutions of pollution monitoring and fresh air for retail stores and shopping outlets.

Prana Air offers the solutions of air quality monitoring and clean air machine for Chennai

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.

Prana Air offers the solutions of air quality monitoring and clean air machine for Chennai

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.

Prana Air offers the solutions of air quality monitoring and clean air machine for Chennai

Air Quality Solutions For Hospitals

Prana Air provides air quality monitoring and fresh air solutions for hospitals to ensure clean and healthy indoor air.

Prana Air offers the solutions of air quality monitoring and clean air machine for Chennai

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.

Prana Air offers the solutions of air quality monitoring and clean air machine for Chennai

Air Quality Solutions for Banks

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

Prana Air offers the solutions of air quality monitoring and clean air machine for Chennai

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.

Prana Air offers the solutions of air quality monitoring and clean air machine for Chennai

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.

Chennai's AQI Data Analytics Solutions

Air quality data monitoring platforms

Mobile AppMobile App
Smart TV AppSmart TV App
Web DashboardWeb Dashboard
APIAPI
WidgetsWidgets

Air Quality FAQs

at Chennai

Frequently Asked Questions About Air Quality

1. What is the current AQI (US) level in Chennai?

The current real-time AQI (US) level in Chennai is 85 (Moderate) due to recent rainfall by 0.22mm/hr. This was last updated 2026-09-25 18:41:01 (Local Time).

2. When was the best AQI (US) level in Chennai in the last 24 hours?

The best AQI (US) level was 69 (Moderate) at 4:01 AM (Local Time) during the last 24 hours.

3. When was the worst AQI (US) level in Chennai in the last 24 hours?

The worst AQI (US) level was 94 (Moderate) at 8:01 PM, Sep 24, 2026 (Local Time) during the last 24 hours.

4. What is the current trend of AQI (US) levels in Chennai during last 24 hours?

The AQI (US) levels in Chennai have been fluctuating throughout the last 24 hours. The levels have increased by highest 94 at 8:01 PM, Sep 24, 2026 (Local Time), lowest 69 at 4:01 AM (Local Time).

5. What actions are recommended as per the current AQI (US) level in Chennai?

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

Recent AQI Blogs

Read the latest news

Here are some latest blogs that you can go through to find out more air pollution.

The Night a Wall of Dust Swallowed Phoenix: What 1,520 Air Quality Readings Reveal About Arizona's Air

The Night a Wall of Dust Swallowed Phoenix: What 1,520 Air Quality Readings Reveal About Arizona's Air

24 Aug 2026Gyane Haobijam
New Delhi's Monsoon AQI Dip That Didn't Quite Last

New Delhi's Monsoon AQI Dip That Didn't Quite Last

14 Aug 2026AQI Newsroom
Gurgaon's Air Grew Steadily Worse Through Monsoon 2026

Gurgaon's Air Grew Steadily Worse Through Monsoon 2026

14 Aug 2026AQI Newsroom
Allahabad Air Quality Dips Then Swings Through Monsoon 2026

Allahabad Air Quality Dips Then Swings Through Monsoon 2026

13 Aug 2026AQI Newsroom
Mumbai's Monsoon Air: Clean Spells, Stubborn PM10 Rises

Mumbai's Monsoon Air: Clean Spells, Stubborn PM10 Rises

11 Aug 2026AQI Newsroom
Chennai's Air Quietly Worsened Through July 2026

Chennai's Air Quietly Worsened Through July 2026

11 Aug 2026AQI Newsroom
Kolkata's Monsoon Air: From Hazardous Peak to Clean Skies

Kolkata's Monsoon Air: From Hazardous Peak to Clean Skies

11 Aug 2026AQI Newsroom
Bangalore's Monsoon Air Turned Murkier Through July 2026

Bangalore's Monsoon Air Turned Murkier Through July 2026

11 Aug 2026AQI Newsroom
New Delhi's Monsoon Air: From 69 to 166 AQI in Days

New Delhi's Monsoon Air: From 69 to 166 AQI in Days

11 Aug 2026AQI Newsroom
World Top 10 Hottest Cities Are All in India Again - May 2026

World Top 10 Hottest Cities Are All in India Again - May 2026

4 Jun 2026Gyane Haobijam
Delhi Air Quality 2026 vs 6-Year Historical PM2.5 Data

Delhi Air Quality 2026 vs 6-Year Historical PM2.5 Data

2 Jun 2026Gyane Haobijam
What 17 Years of Delhi Temperature Data Reveal About May's Heatwave Escalation

What 17 Years of Delhi Temperature Data Reveal About May's Heatwave Escalation

27 May 2026AQI Team
World Top Hottest Cities Belong to India - April 2026

World Top Hottest Cities Belong to India - April 2026

28 Apr 2026Gyane Haobijam
Construction Air Pollution: The Invisible Hazard Reshaping India's Urban Air

Construction Air Pollution: The Invisible Hazard Reshaping India's Urban Air

27 Mar 2026Gyane Haobijam
Kitchen Air Pollution: How Cooking Can Spike Your Indoor AQI

Kitchen Air Pollution: How Cooking Can Spike Your Indoor AQI

17 Mar 2026Gyane Haobijam
Mumbai Air Quality Comparison of 2025 Vs 2026 (Jan-Feb)

Mumbai Air Quality Comparison of 2025 Vs 2026 (Jan-Feb)

14 Feb 2026Gyane Haobijam
Why AQI Standards Vary Across the World - And Why Air Quality Index Matters More Than Ever

Why AQI Standards Vary Across the World - And Why Air Quality Index Matters More Than Ever

12 Feb 2026Navya
Why Winter Suffocates and Monsoon Saves Delhi Air Quality 2025?

Why Winter Suffocates and Monsoon Saves Delhi Air Quality 2025?

2 Feb 2026Gyane Haobijam
Prana Air Logo

Prana Sense

Air Quality Monitor

Air Quality Index depicts the extent of air pollution at a particular location.

Prana Air Ambient Air Quality Monitor - most realiable outdoor aqi monitoringPrana Air Ambient Air Quality Monitor - most realiable outdoor aqi monitoring
Prana Air Logo

Pocket PM

Air Quality Monitor

Know the air quality around you wherever you are with the Pocket monitor to get instant air quality insights.

Prana Air Pocket PM2.5 Air Quality Monitor - portable, smallest and afforablePrana Air Pocket PM2.5 Air Quality Monitor - portable, smallest and afforable
Prana Air Logo

Cair +

Indoor Air Quality Monitor

Track indoor air quality with advanced connectivity and portability for real-time air quality data.

Prana Air Cair+ Indoor Air Quality Monitor for home, office or institutesPrana Air Cair+ Indoor Air Quality Monitor for home, office or institutes