Top 100 Cities with the Worst Air Quality in the World (WHO, 2011)

Update May, 2014 - a new report released by WHO
listing 37 cities in India in the top 100

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The database below is from a compilation put together by the World Health Organization (WHO) in 2011, for all the cities with PM10 measurements since 2008.

Data is annual average PM10 concentrations in micro-gm/m3

India has 27 cities in the Top 100.