Delhi-NCR Air Quality 'Severe': GRAP-4 Curbs Reimposed Amid Dense Fog

• GRAP-4 restrictions have been reimposed across Delhi-NCR due to the air quality deteriorating to the 'severe' category.
• The national capital experienced dense fog on Sunday morning, with the minimum temperature dropping to 5.3 degrees Celsius.
• The India Meteorological Department (IMD) issued a yellow alert for dense fog in isolated places until forenoon.
• Delhi's AQI reached 428 at 8 PM on Saturday, showing a sharp increase from 400 earlier in the day, attributed to western disturbance and unfavorable weather.
• The Commission for Air Quality Management (CAQM) invoked Stage-IV as a proactive measure to prevent further air quality deterioration.

Why It Matters: Delhi-NCR faces 'severe' air quality, leading to the reimposition of GRAP-4 curbs and dense fog.