Most polluted cities of the world


This list contains the list of cities by PM2.5 annual mean concentration measurement whose measurement is greater than or equal to the air quality guideline (AQG) of 10 as documented by the World Health Organization covering the period from 2008 to 2013, with the majority of values for the years 2011 and 2012. The WHO database contains results of ambient (outdoor) air pollution monitoring from almost 1600 cities in 91 countries. Air quality in the database is represented by the annual mean concentration of particulate matter (PM10 and PM2.5, i.e. particles smaller than 10 or 2.5 micrometres).

World's most polluted cities

And 13 in top 20 are in INDIA.............
PositionCountryCityPM2.5PM2.5 YearPM10PM10 Year
1IndiaDelhi15320132862010
2IndiaPatna14920131642011
3IndiaGwalior1443292012
4IndiaRaipur1343052012
5PakistanKarachi11720102732010
6PakistanPeshawar11120105402010
7PakistanRawalpindi10720104482010
8IranKhoramabad10220101212010
9IndiaAhmedabad1002013672011
10IndiaLucknow962192010
11IndiaFirozabad962192010
12QatarDoha9320121682012
13IndiaKanpur932122010
14IndiaAmritsar922102012
15IndiaLudhiana912072012
16TurkeyIgdir901352010
17BangladeshNarayanganj8920131812013
18IndiaAllahabad882022010
19IndiaAgra882002010
20IndiaKhanna882002012
                                                      Source: WIKIPEDIA

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