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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 10:28:19 AM (Local Time)

location image
Live AQI
119(AQI-US)
Air Quality is
Poor
pm10 :  69 µg/m³
PM2.5 :  47 µg/m³
Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+
aqi poor level.webp in Chennai
mist

29 °C

Mist
Humidity
Humidity89 %
Wind Speed
Wind Speed11 km/h
UV Index
UV Index9
Last Updated: 2025-10-14 10:28:19 AM (Local Time)
Map

Chennai

Major Air Pollutants

Chennai

PM2.5's Icon

Particulate Matter(PM2.5)

47µg/m³

PM10's Icon

Particulate Matter(PM10)

69µg/m³

CO's Icon

Carbon Monoxide(CO)

305ppb

SO2's Icon

Sulfur Dioxide(SO2)

3ppb

NO2's Icon

Nitrogen Dioxide(NO2)

7ppb

O3's Icon

Ozone(O3)

9ppb

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AQI Graph

Historical Air Quality Data

Chennai

24 Hours
AQI
Chennai
AQI
.
13-10-2025Time14-10-2025
92
Min.at 1:04 AM on 14th Oct
135
Max.at 10:22 AM on 13th Oct

Want air quality data?

Download 2024 Annual Data

World Air Quality Report

Globe

AQI Trends - Annual Air Quality Changes

Chennai, Tamil Nadu, India

AQI
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
86
28
51
31
92
Moderate
88
29
64
37
81
Moderate
88
29
62
36
73
Moderate
55
11
63
30
100
Poor
115
41
84
30
93
Poor
144
53
60
31
100
Poor
142
52
54
35
100
Unhealthy
171
84
90
32
88
Poor
122
44
50
30
88
Poor
119
43
87
30
94
Moderate
94
32
68
30
100
Unhealthy
184
103
111
33
100
Severe
210
135
141
31
96
Poor
132
48
61
29.5
45
Poor
142
52
77
35
91
Moderate
92
31
74
33
100
Poor
132
48
54
30
100
Poor
110
39
66
32
100
Poor
129
47
52
36
94
Poor
107
38
52
29
100
Moderate
94
32
37
30.3
45
Poor
107
38
57
36
57
Unhealthy
161
70
79
29.8
45
Moderate
94
32
63
34
90
Moderate
99
35
70
31
100
Moderate
73
21
65
33
100

India's Metro Cities

Air Quality Index

Ahmedabad City AQI

Ahmedabad

157

temp.26°C
hum.45%
Bangalore City AQI

Bangalore

89

temp.25°C
hum.74%
Chennai City AQI

Chennai

115

temp.28°C
hum.89%
Hyderabad City AQI

Hyderabad

110

temp.24°C
hum.83%
Kolkata City AQI

Kolkata

153

temp.29°C
hum.66%
Mumbai City AQI

Mumbai

159

temp.30°C
hum.52%
New Delhi City AQI

New Delhi

183

temp.25°C
hum.65%
Pune City AQI

Pune

126

temp.24°C
hum.59%

Air Quality Calendar 2025

Chennai

2025
AQI
January
1 Jan
114
2 Jan
132
3 Jan
137
4 Jan
143
5 Jan
147
6 Jan
151
7 Jan
142
8 Jan
146
9 Jan
141
10 Jan
146
11 Jan
121
12 Jan
119
13 Jan
116
14 Jan
91
15 Jan
87
16 Jan
124
17 Jan
136
18 Jan
126
19 Jan
111
20 Jan
131
21 Jan
130
22 Jan
136
23 Jan
111
24 Jan
109
25 Jan
106
26 Jan
103
27 Jan
112
28 Jan
133
29 Jan
131
30 Jan
127
31 Jan
99
February
1 Feb
91
2 Feb
86
3 Feb
84
4 Feb
101
5 Feb
120
6 Feb
129
7 Feb
137
8 Feb
132
9 Feb
136
10 Feb
144
11 Feb
113
12 Feb
120
13 Feb
100
14 Feb
100
15 Feb
101
16 Feb
101
17 Feb
118
18 Feb
121
19 Feb
120
20 Feb
111
21 Feb
99
22 Feb
101
23 Feb
96
24 Feb
97
25 Feb
109
26 Feb
114
27 Feb
105
28 Feb
103
March
1 Mar
84
2 Mar
77
3 Mar
80
4 Mar
77
5 Mar
78
6 Mar
99
7 Mar
114
8 Mar
105
9 Mar
93
10 Mar
94
11 Mar
92
12 Mar
87
13 Mar
79
14 Mar
88
15 Mar
66
16 Mar
75
17 Mar
94
18 Mar
83
19 Mar
80
20 Mar
80
21 Mar
81
22 Mar
79
23 Mar
74
24 Mar
81
25 Mar
87
26 Mar
94
27 Mar
109
28 Mar
98
29 Mar
107
30 Mar
90
31 Mar
95
April
1 Apr
100
2 Apr
86
3 Apr
72
4 Apr
76
5 Apr
66
6 Apr
66
7 Apr
64
8 Apr
67
9 Apr
64
10 Apr
79
11 Apr
82
12 Apr
90
13 Apr
88
14 Apr
77
15 Apr
70
16 Apr
74
17 Apr
75
18 Apr
72
19 Apr
83
20 Apr
80
21 Apr
81
22 Apr
79
23 Apr
74
24 Apr
74
25 Apr
74
26 Apr
72
27 Apr
65
28 Apr
58
29 Apr
60
30 Apr
65
May
1 May
69
2 May
70
3 May
80
4 May
77
5 May
81
6 May
77
7 May
80
8 May
90
9 May
93
10 May
92
11 May
95
12 May
95
13 May
98
14 May
94
15 May
98
16 May
93
17 May
89
18 May
84
19 May
76
20 May
79
21 May
69
22 May
83
23 May
81
24 May
71
25 May
70
26 May
67
27 May
74
28 May
88
29 May
74
30 May
81
31 May
85
June
1 Jun
82
2 Jun
83
3 Jun
80
4 Jun
79
5 Jun
87
6 Jun
95
7 Jun
95
8 Jun
85
9 Jun
86
10 Jun
86
11 Jun
88
12 Jun
86
13 Jun
81
14 Jun
75
15 Jun
73
16 Jun
71
17 Jun
73
18 Jun
73
19 Jun
73
20 Jun
74
21 Jun
70
22 Jun
71
23 Jun
69
24 Jun
70
25 Jun
69
26 Jun
67
27 Jun
66
28 Jun
65
29 Jun
65
30 Jun
65
July
1 Jul
66
2 Jul
69
3 Jul
66
4 Jul
65
5 Jul
65
6 Jul
64
7 Jul
65
8 Jul
67
9 Jul
68
10 Jul
70
11 Jul
73
12 Jul
72
13 Jul
73
14 Jul
71
15 Jul
71
16 Jul
71
17 Jul
70
18 Jul
69
19 Jul
70
20 Jul
69
21 Jul
70
22 Jul
68
23 Jul
68
24 Jul
69
25 Jul
70
26 Jul
67
27 Jul
66
28 Jul
65
29 Jul
65
30 Jul
65
31 Jul
68
August
1 Aug
70
2 Aug
76
3 Aug
73
4 Aug
71
5 Aug
69
6 Aug
70
7 Aug
71
8 Aug
71
9 Aug
72
10 Aug
70
11 Aug
67
12 Aug
69
13 Aug
64
14 Aug
64
15 Aug
63
16 Aug
62
17 Aug
59
18 Aug
59
19 Aug
60
20 Aug
63
21 Aug
67
22 Aug
68
23 Aug
64
24 Aug
67
25 Aug
66
26 Aug
66
27 Aug
67
28 Aug
67
29 Aug
69
30 Aug
68
31 Aug
68
September
1 Sep
70
2 Sep
67
3 Sep
67
4 Sep
70
5 Sep
67
6 Sep
72
7 Sep
71
8 Sep
73
9 Sep
79
10 Sep
80
11 Sep
78
12 Sep
80
13 Sep
84
14 Sep
78
15 Sep
76
16 Sep
73
17 Sep
68
18 Sep
67
19 Sep
67
20 Sep
70
21 Sep
72
22 Sep
71
23 Sep
72
24 Sep
72
25 Sep
76
26 Sep
67
27 Sep
69
28 Sep
66
29 Sep
77
30 Sep
87
October
1 Oct
95
2 Oct
85
3 Oct
99
4 Oct
87
5 Oct
98
6 Oct
93
7 Oct
107
8 Oct
106
9 Oct
104
10 Oct
100
11 Oct
111
12 Oct
134
13 Oct
129
14 Oct
-
15 Oct
-
16 Oct
-
17 Oct
-
18 Oct
-
19 Oct
-
20 Oct
-
21 Oct
-
22 Oct
-
23 Oct
-
24 Oct
-
25 Oct
-
26 Oct
-
27 Oct
-
28 Oct
-
29 Oct
-
30 Oct
-
31 Oct
-
Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+

Health Advice For People Living In

Chennai

1.8Cigarettes per day

Cigarette
Weekly 12.6 Cigarettes
Monthly 54 Cigarettes

Breathing the air in this location is as harmful as smoking 1.8 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

Mid. Chances of Asthma

Asthma

Risk of Asthma symptoms is Mid. 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.

Most Polluted Cities Live Ranking 2025
World's Most PollutedCity Rankings (2024)
World's Most PollutedCountry Rankings(2024)
RankCityAQIAQI Status

Standard Value

Follow

1.

Hapur, India

202
Severe
13xabove Standard

2.

Dharuhera, India

198
Unhealthy
13xabove Standard

3.

Meerut, India

196
Unhealthy
13xabove Standard

4.

Baddi, India

195
Unhealthy
13xabove Standard

5.

Pithampur, India

194
Unhealthy
13xabove Standard

6.

Bahadurgarh, India

194
Unhealthy
13xabove Standard

7.

Bikaner, India

193
Unhealthy
13xabove Standard

8.

Jaisalmer, India

191
Unhealthy
13xabove Standard

9.

Ghaziabad, India

189
Unhealthy
13xabove Standard

10.

Sonipat, India

188
Unhealthy
13xabove Standard

Last Updated: 14 Oct 2025, 04:58 AM

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
air quality solutions for offices 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.

air quality solutions for smart-city 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.

air quality solutions for institutes 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.

air quality solutions for hotels 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.

air quality solutions for restaurants 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.

air quality solutions for rmc-plants 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.

air quality solutions for fitness-center 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.

air quality solutions for parking-lot 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.

air quality solutions for retail-stores 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.

air quality solutions for airport 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.

air quality solutions for construction-sites 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.

air quality solutions for hospitals 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.

air quality solutions for bathroom 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.

air quality solutions for banks for Chennai

Air Quality Solutions for Banks

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

air quality solutions for cinema 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.

air quality solutions for real-estates 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
aqi air quality app for Chennai
Mobile App

Empower Your Decisions with Reliable Data

Get it onApp Store
Get it onGoogle Play
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 119 (Poor) due to recent rainfall by 0.02mm/hr. This was last updated 2025-10-14 10:28:19 AM (Local Time).

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

The best AQI level was 92 (Moderate) at 1:04 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 135 (Poor) at 10:22 AM, 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 135 at 10:22 AM, Oct 13, 2025 (Local Time), lowest 92 at 1:04 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.

Recent AQI Blogs

Read the latest news

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

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Prana Sense

Air Quality Monitor

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

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Pocket PM

Air Quality Monitor

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

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Cair +

Indoor Air Quality Monitor

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

Cair + Indoor Air Quality MonitorCair + Indoor Air Quality Monitor