World's most polluted capital cities revealed as Delhi is ranked worst

[السياسي]

Researchers looked at the average daily amount of tiny particles called PM2.5s in the world's capital cities over the course of 2018, and found India's capital was the most polluted.

https://www.dailymail.co.uk/news/article-6773899/Worlds-polluted-capital-cities-revealed-Delhi-ranked-worst.html?ns_mchannel=rss&ito=1490&ns_campaign=1490 ]قرااء المزيد ..... [/url]