To tackle the hazardous pollution levels, the Commission for Air Quality Management (CAQM) has implemented all measures under GRAP Stage-IV in Delhi-NCR. The post Air pollution crisis: Toxic smog chokes Delhi-NCR and major cities; Check AQI in Noida, Ghaziabad, Gurugram, Faridabad, Lucknow, Patna, Mumbai, Bengaluru appeared first on News24 .