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Chennai Air Quality Index (AQI) | Air Pollution

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

Last Updated: 2026-07-19 00:11:02 (Local Time)

location image
Live AQI
83AQI (US)
Air Quality is
Moderate
PM2.5 :  24 µg/m³
pm10 :  98 µg/m³
Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+
aqi moderate level.webp in Chennai
mist

29 °C

Mist
Humidity
Humidity79 %

Wind Speed
Wind Speed16.6 km/h

UV Index
UV Index0

Last Updated: 2026-07-19 00:11:02 (Local Time)
Rank240th

Currently, Chennai ranks 240th among the cities with the highest AQI levels in the world.

Map

Chennai

Major Air Pollutants

Chennai

AQI Graph

Historical Air Quality Data

Chennai

Chennai
AQI (US)
.
18-07-2026Time19-07-2026
76
Min. AQI (US)1:31pm
130
Max. AQI (US)9:01am

AQI (US) Trends - Annual Air Quality Changes

Chennai, Tamil Nadu, India

Chennai's Locations

Real-time Air Pollution Level

locations
Status
AQI (US)
PM₂.₅(µg/m³)
PM₁₀(µg/m³)
Temp.(°C)
Humi.(%)
Moderate
78
25
99
29
79
Moderate
80
26
97
29
79
Moderate
75
24
97
29
79
Moderate
92
20
138.62
29
79
Moderate
79
24
105.27
29
79
Moderate
80
26
83
29
79
Moderate
100
23
154.21
29
79
Moderate
75
22
80.02
29
79
Moderate
93
32
82
29
79
Poor
107
21
168.1
29
79
Moderate
84
28
79
29
79
Moderate
75
24
70
29
79
Moderate
77
23
26
29
79
Moderate
84
28
103
29
79
Moderate
84
28
78
29
79
Moderate
79
24
113
29
79
Moderate
90
19
134.26
29
79
Moderate
88
30
74
29
79
Moderate
80
26
81
29
79
Moderate
77
23
100.77
29
79
Moderate
80
23
116
29
79
Moderate
91
21
136.06
29
79
Moderate
86
28
81.48
29
79
Moderate
75
24
92
29
79
Moderate
87
21
127.09
29
79
Moderate
79
24
69.49
29
79
Moderate
82
27
89
29
79
Moderate
80
26
109
29
79
Poor
114
21
181.22
29
79
Moderate
89
19
131.31
29
79
Moderate
100
23
153.09
29
79
Moderate
80
26
95
29
79
Moderate
71
20
21
29
79
Moderate
80
26
83
29
79
Moderate
77
23
95.42
29
79
Poor
106
16
165.47
29
79
Moderate
78
25
83
29
79
Moderate
77
23
64.68
29
79
Moderate
73
23
85
29
79
Moderate
73
18
99.76
29
79
Moderate
69
21
90
29
79
Moderate
71
22
78
29
79
Moderate
79
24
27
29
79
Moderate
90
31
84
29
79

India's Metro Cities

Air Quality Index

Health Advice For People Living In

Chennai

1.5Cigarettes per day

Cigarette
Weekly 10.5 Cigarettes
Monthly 45 Cigarettes

Breathing the air in this location is as harmful as smoking 1.5 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.

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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 83 (Moderate) due to recent rainfall by 0.21mm/hr. This was last updated 2026-07-19 00:11:02 (Local Time).

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

The best AQI (US) level was 76 (Moderate) at 1:31 PM (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 130 (Poor) at 9:01 AM (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 130 at 9:01 AM (Local Time), lowest 76 at 1:31 PM (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.