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Air Quality in India's Cities 

Average AQI values from December 5th- December 15th, 2017

AQI (Air Quality Index) is a composite index of 5 major pollutants- particulate matter (PM2.5, PM10) sulfur dioxide, carbon monoxide, NO2 and Ozone. The following city profiles display the average of all 24-hour averages over a span of 10 days in 6 major cities in India. 

Given below is the color-coded scale depicting the varying levels of air quality and associated risks to human health. 

Chart: Department of Environmental Protection, West Virginia

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BENGALURU

AQI: 88.4

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PUNE

AQI: 97.7

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MUMBAI

AQI: 129.7

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CHENNAI

AQI: 113.4

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HYDERABAD

AQI: 133.5 

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NEW DELHI

AQI: 287

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Data from Central Pollution Control Board http://cpcb.nic.in