claim: "fifteen out of the 20 most polluted cities in the world" are in india and china.
author: jim webb
evidence_1: dec 2, 2015 ... outdoor air pollution kills 3.3 million people, mostly in cities, every year. ... at the  time of publication, chinese maps on the world air quality index .... the top of  this list is dominated by the ultra-miasmic cities of india ... this is close to three  times the beijing mean and 15 times the who guideline of 10µg/m3.
evidence_2: feb 22, 2017 ... many cities around the world have been found to have pollution levels well  above ... as can be seen above, india has the most highly polluted cities  worldwide. ... by 2020 we could imagine having the first forest city in china.
evidence_3: jun 4, 2016 ... half of the world's 20 most polluted cities are in india, said a world .... for the last  15 years show mounting air pollution in smaller cities such as ...
evidence_4: this list contains the top 500 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 ... 15, india, kanpur, 115, 2012, 215, 2012. 16, india, khanna, 114,  2012, 213 ...
evidence_5: may 12, 2016 ... the world's most polluted cities are in iran and india, according to the world ...  the national meteorological center of china meteorological ... and 20 times that  amount — based on the new who data from cities that ... ludhiana is the first of  six indian cities to make the 15 cities with the worst air pollution.