China has far more cars and factories than India, yet its air is cleaner. It shows India’s air problem can be fixed WHO says the level of PM2.5 – particles so tiny they can enter...
source https://timesofindia.indiatimes.com/blogs/toi-edit-page/air-control/
source https://timesofindia.indiatimes.com/blogs/toi-edit-page/air-control/