Which country was the world`s most polluted capital for the third straight year in 2020? July 1, 2021 / By Preparation Point / Ranking/ Performance Index Mcqs Share on WhatsApp Share on Facebook Share on Twitter Share on LinkedIn Islamabad, Pakistan Beijing, China New Delhi, India None of these New Delhi was the world’s most polluted capital for the third straight year in 2020, according to IQAir. Share this:TwitterFacebookMoreTelegramWhatsAppLike this:Like Loading... Related Share on WhatsApp Share on Facebook Share on Twitter Share on LinkedIn