Chennai AQI
Good
47
PM10: 39.43 µg/m³
PM2.5: 97.57 µg/m³
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Good0 - 50
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Moderate51 - 100
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Poor101 - 150
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Unhealthy151 - 200
-
Severe201 - 300
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Hazardous300+
Major Air Pollutants
Particulate Matter(PM2.5)
97.57 µg/M³
Particulate Matter(PM10)
39.43µg/M³
Carbon Monoxide(CO)
2.29ppb
Sulfur Dioxide(SO2)
1.43 Mb
Nitrogen Dioxide (NO2)
2.86ppb
Ozone (O3)
9.71ppb
Chennai Air Quality Index (AQI) Today
The Air Quality Index (AQI) in Chennai is 47, which means the air quality is Good right now. The main pollutant today is PM10: 39.43, PM25: 97.57, NO2: 2.86, SO2: 1.43, O3: 9.71, CO: 2.29 If the AQI is above 100, sensitive groups like children or people with breathing issues should be careful and limit outdoor time. The AQI is regularly updated using real-time data from local monitoring stations, so you can always check the latest status for Chennai If the AQI is “Poor” or higher, it\’s best to reduce outdoor activities and use a mask if stepping out.
Most Polluted Cities
All Cities
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CityStatusAQIPM10PM2.5
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AgraHazardous332125178
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AhmedabadModerate71151175
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AjmerUnhealthy184194198
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AmaravatiUnhealthy195141194
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AmbalaSevere207192222
-
AmritsarSevere207194217
-
AsansolUnhealthy195118167
-
BahadurgarhUnhealthy184241212
-
BallabgarhUnhealthy195141194
-
BareillyUnhealthy160149167
-
BengaluruModerate97120173
-
BhiwaniUnhealthy184241212
-
BhopalModerate91129182
-
BhubaneswarModerate62141194
-
BulandshahrUnhealthy160154178
-
ChandigarhSevere282113141
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ChennaiGood47121174
-
ChittoorUnhealthy195141194
-
CoimbatoreUnhealthy195126180
-
CuttackUnhealthy195141194
-
DarbhangaUnhealthy160154178
-
DehradunSevere210228233
-
DelhiHazardous335209221
-
DhanbadUnhealthy195141194
-
FaridabadHazardous318141194
-
Gandhi NagarModerate66171192
-
GayaPoor1018390
-
GhaziabadHazardous351174194
-
Greater NoidaHazardous343150186
-
GurgaonHazardous320183190
-
GuwahatiModerate79822
-
GwaliorSevere292137189
-
HisarUnhealthy184174211
-
HyderabadModerate88116167
-
IndoreModerate52112171
-
JabalpurUnhealthy195118165
-
JaipurModerate69166188
-
JalandharSevere207194217
-
JodhpurUnhealthy184153161
-
KaithalSevere207194217
-
KanpurModerate60137187
-
KarnalSevere207192222
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KolkataModerate831131
-
KotaUnhealthy184102164
-
KurukshetraSevere207192222
-
LucknowPoor102135186
-
LudhianaSevere207194217
-
MandideepUnhealthy195141194
-
ManesarUnhealthy184171192
-
MeerutHazardous359224232
-
MoradabadSevere228148183
-
MumbaiPoor124149187
-
MuzaffarnagarSevere210237236
-
MuzaffarpurModerate747182
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NagpurGood46118169
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NashikModerate8497157
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NoidaHazardous338162189
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PalwalUnhealthy195141194
-
PanchkulaSevere207192222
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PanipatSevere207192222
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PatialaSevere207194217
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PatnaPoor1118299
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PithampurUnhealthy184117180
-
PrayagrajUnhealthy195125172
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PuducherryUnhealthy195141194
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PunePoor128106169
-
RaipurModerate747778
-
Sawai MadhopurUnhealthy184117180
-
SuratUnhealthy184153190
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ThiruvananthapuramGood3027
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UdaipurUnhealthy184171192
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UjjainUnhealthy184117180
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VaranasiModerate68138190
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VijayawadaPoor10687104
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VisakhapatnamUnhealthy195141194
Chennai AQI FAQs
What is AQI for Chennai today?
The Air Quality Index (AQI) in Chennai today is 47, which falls under the Good
What does this AQI mean for health in Chennai?
An AQI of 47 means that the air is Good. If it is Good or Satisfactory, normal outdoor activity is fine. For Moderate or higher, sensitive groups (children, elderly, people with heart/lung disease) should be cautious or limit outdoor time.
Which pollutant is highest today in Chennai?
Today, the most prominent pollutant in Chennai is PM10: 39.43, PM25: 97.57, NO2: 2.86, SO2: 1.43, O3: 9.71, CO: 2.29. This pollutant is the main reason for the AQI rating.
How often is the AQI updated for Chennai?
The AQI for Chennai is updated regularly—usually hourly or daily—by local monitoring stations. Data is provided in real time on official websites.
Where can I see detailed AQI history for Chennai?
Visit government sites like CPCB, or trusted live AQI websites for Chennai to view real-time and historical air quality data.
How does Chennai compare to other Indian cities today?
You can see city rankings and compare Chennai's AQI with other cities using real-time lists available on our site.
