Do you live in one of the dirtiest cities in America? While there are a few streets in each city that might not be the ...

Notably, the 10 dirtiest cities with a population of over 1 lakh ... making it the largest cleanliness survey in the world.

making it the world's single biggest environmental health risk, the WHO, a United Nations agency, said last month. Thirteen of the dirtiest 20 cities were Indian, with New Delhi, Patna ...