Top 9 Most Dirtiest Cities in the World - Page 2 of 9 - 9facts

Top 9 Most Dirtiest Cities in the World

#2. Delhi

Delhi - Top 9 Most Dirtiest Cities in the World

Delhi has become synonymous with smog due to industry and traffic, which have combined to create
incredibly high levels of particulate matter including carbon, nitrogen, sulphur and metal compounds.

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