According to WHO, which Indian city has ranked the highest on the list of most polluted cities of the world?

a. Mumbai

b. Delhi

c. Chennai

d. Dehradun

ANSWER: Dehradun

Explanation:

Dehradun has ranked 31st in a recently released list of most polluted cities of the world.

It was 29th last year

List released by WHO on May 12 is based on how much fine particulate matter they have in the air in terms of PM 2.5

Dehradun’s count is beyond 100