Patiala only Indian city with clean air as new anti-pollution plan stumbles The air quality in the world's most polluted city, Delhi--home to 20 million people--remained above safe limits almost all days this winter between November 2018
Patiala only Indian city with clean air as new anti-pollution plan stumbles The air quality in the world's most polluted city, Delhi--home to 20 million people--remained above safe limits almost all days this winter between November 2018