Toxic Foam Returns To Yamuna As Delhi-NCR Air Quality Slips To 'Unhealthy'

Toxic Foam Returns To Yamuna As Delhi-NCR Air Quality Slips To 'Unhealthy'
The deterioration had prompted the Commission for Air Quality Management (CAQM) to invoke Stage 1 of the Graded Response Action Plan (GRAP) across Delhi-NCR on October 21 to curb air pollution.