Delhi’s AQI ‘severe’ at 420, GRAP 4 returns.
Delhi’s AQI ‘severe’ at 420, GRAP 4 returns. Delhi’s air quality deteriorated sharply on Monday, prompting the Union government’s Commission for Air Quality Management (CAQM) to reimpose Stage 4 curbs under the Graded Response Action Plan (GRAP) in the National Capital Region (NCR). The Air Quality Index (AQI) crossed the 400 mark, reaching the ‘severe’ […]