Chennai Air Pollution: Real-time Air Quality Index (AQI)

Velachery Res. Area, Chennai
Royapuram, Chennai
Perungudi, Chennai
Manali Village, Chennai
Manali, Chennai
Kodungaiyur, Chennai
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Velachery Res. Area, Chennai AQI: Velachery Res. Area, Chennai Real-time Air Quality Index (AQI).
152
Unhealthy
Updated on Thursday 16:00
temperature: 35°C
currentpast 2 daysminmax
PM2.5 AQI
152Velachery Res. Area, Chennai, Chennai PM25 (fine particulate matter) measured by CPCB - India Central Pollution Control Board. Values are converted to the US EPA AQI standard.64152
PM10 AQI
79Velachery Res. Area, Chennai, Chennai PM10 (respirable particulate matter) measured by CPCB - India Central Pollution Control Board. Values are converted to the US EPA AQI standard.4483
O3 AQI
21Velachery Res. Area, Chennai, Chennai O3 (ozone) measured by CPCB - India Central Pollution Control Board. Values are converted to the US EPA AQI standard.1722
NO2 AQI
5Velachery Res. Area, Chennai, Chennai NO2 (nitrogen dioxide) measured by CPCB - India Central Pollution Control Board. Values are converted to the US EPA AQI standard.56
SO2 AQI
3Velachery Res. Area, Chennai, Chennai SO2 (sulfur dioxide) measured by CPCB - India Central Pollution Control Board. Values are converted to the US EPA AQI standard.34
CO AQI
9Velachery Res. Area, Chennai, Chennai CO (carbon monoxide) measured by CPCB - India Central Pollution Control Board. Values are converted to the US EPA AQI standard.713
Temp.
35Velachery Res. Area, Chennai, Chennai t (temp.) measured by Citizen Weather Observer Program (CWOP/APRS).2636
Pressure
994Velachery Res. Area, Chennai, Chennai p (pressure:) measured by Citizen Weather Observer Program (CWOP/APRS).9941000
Humidity
55Velachery Res. Area, Chennai, Chennai h (humidity) measured by Citizen Weather Observer Program (CWOP/APRS).3991
Wind
0Velachery Res. Area, Chennai, Chennai w (wind) measured by Citizen Weather Observer Program (CWOP/APRS).01
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Air Quality Forecast
THU 27
32°C
25°C
FRI 28
33°C
25°C
SAT 29
33°C
26°C
SUN 30
32°C
27°C
MON 31
31°C
27°C
TUE 1
31°C
26°C
WED 2
31°C
27°C
PM2.5
O3
Thursday 27Friday 28Saturday 29Sunday 30Monday 31Tuesday 1Wednesday 2
hour
2581114172023258111417202325811141720232591215182103691215182103691215182103691215
Wind Speed (m/s)
45357766676788766766888667688775556777544567765565888





















































Temp.
26°25°30°32°31°29°28°28°26°25°31°33°32°29°29°28°27°26°31°33°33°29°28°28°27°28°32°32°30°29°28°28°27°28°31°31°30°28°28°27°26°28°31°30°29°28°28°27°27°29°31°31°30°
relative humidity
7581534954667172778149495672757579875648527176757370535158697070726953565967696973645255616671737360575867
barometric pressure
10071009101110081005100610081007100610081009100610041006100810071006100710091006100410051008100810061009101010071006100810101009100810101011100810071008101010081007101010091007100610091009100810081010100910071006
total precipitation
0.1
UVI:
11+


6:09 ~ 18:21
UVI:
11


6:09 ~ 18:21
UVI:
11


6:08 ~ 18:21
UVI:
11


6:07 ~ 18:21
UVI:
11


6:07 ~ 18:21
UVI:
0


6:06 ~ 18:21


6:05 ~ 18:21
Forecast plotted using timezone +05:30
Latest forecast updates:
Wind: 5 hours ago [Mar 27, 2025 5:51 AM]
fine particulate matter: 17 hours ago [Mar 26, 2025 6:02 PM]
ozone: 14 hours ago [Mar 26, 2025 8:39 PM]
click to view the detailed forecast

Air Quality Data provided by: CPCB - India Central Pollution Control Board (cpcb.nic.in)

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About the Air Quality and Pollution Measurement:

About the Air Quality Levels

AQIAir Pollution LevelHealth ImplicationsCautionary Statement (for PM2.5)
0 - 50GoodAir quality is considered satisfactory, and air pollution poses little or no riskNone
51 -100ModerateAir quality is acceptable; however, for some pollutants there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.Active children and adults, and people with respiratory disease, such as asthma, should limit prolonged outdoor exertion.
101-150Unhealthy for Sensitive GroupsMembers of sensitive groups may experience health effects. The general public is not likely to be affected.Active children and adults, and people with respiratory disease, such as asthma, should limit prolonged outdoor exertion.
151-200UnhealthyEveryone may begin to experience health effects; members of sensitive groups may experience more serious health effectsActive children and adults, and people with respiratory disease, such as asthma, should avoid prolonged outdoor exertion; everyone else, especially children, should limit prolonged outdoor exertion
201-300Very UnhealthyHealth warnings of emergency conditions. The entire population is more likely to be affected.Active children and adults, and people with respiratory disease, such as asthma, should avoid all outdoor exertion; everyone else, especially children, should limit outdoor exertion.
300+HazardousHealth alert: everyone may experience more serious health effectsEveryone should avoid all outdoor exertion

To know more about Air Quality and Pollution, check the wikipedia Air Quality topic or the airnow guide to Air Quality and Your Health.

For very useful health advices of Beijing Doctor Richard Saint Cyr MD, check www.myhealthbeijing.com blog.


Usage Notice: All the Air Quality data are unvalidated at the time of publication, and due to quality assurance these data may be amended, without notice, at any time. The World Air Quality Index project has exercised all reasonable skill and care in compiling the contents of this information and under no circumstances will the World Air Quality Index project team or its agents be liable in contract, tort or otherwise for any loss, injury or damage arising directly or indirectly from the supply of this data.



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