New Delhi: The city's air quality has worsened further, with levels again breaching the 400 mark and falling into the 'severe' category, as per the Commission for Air Quality Management (CAQM), reports Dynamite News correspondent.
On Tuesday morning, Delhi's air quality index (AQI) was 421. AQI values in areas including Anand Vihar, Ashok Vihar, Bawana, Jahangirpuri, and Alipur ranged from 400 to 470, signifying hazardous air quality.
Air quality very poor
Meanwhile, the Central Pollution Control Board (CPCB) classified the local air quality in the "Very Poor" category. The India Meteorological Department (IMD) reported the minimum temperature in Delhi as 5 degrees Celsius.
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The Sub-Committee of the Commission for Air Quality Management (CAQM) implemented Stage IV of the Graded Response Action Plan (GRAP) across the National Capital Region (NCR) on Monday night with "immediate effect" in response to declining air quality.
This decision came after Delhi's AQI surpassed the 400 mark. On Monday night, the AQI was reported as 399 at 9 PM and crossed into the severe zone at 401 by 10 PM.
Earlier, GRAP-III restrictions had been re-imposed across the NCR after the AQI breached the 350 mark amid "highly unfavourable meteorological conditions" and "other factors affecting the dispersion of pollutants."
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GRAP statement
According to the Sub-Committee on GRAP, "The air quality parameters further worsened owing to a drastic reduction in the mixing layer height and continued absolute calm-wind conditions over Delhi."
"The Sub-Committee noted that the AQI level almost touched the 400 mark, i.e., 399 at 9 PM and was recorded as 401 at 10 PM, breaching the 400 mark," the statement added.
