Delhi-NCR Weather Update: In view of the alarming AQI levels, strict pollution control measures under Stage IV of the Graded Response Action Plan (GRAP) are back in force. Proactive steps are being taken, as there is a likelihood of further deterioration in the air quality in Delhi-NCR. The post Delhi-NCR Weather Update: AQI breaches 400, over 30 areas in red zone as cities turn into a gas chamber, most polluted city is? appeared first on News24 .