Strong winds slightly improved Delhi's air quality but remained in the 'very poor' category for the fourth straight day, with a reading of 359 on Monday morning, as a thick layer of smog shrouded the national capital. Monday's AQI was a slight improvement from 377 on Sunday and 386 on Saturday.

As per data from the Central Pollution Control Board (CPCB)'s Sameer app, the Air Quality Index (AQI) at six of the national capital's 39 monitoring stations was in the 'severe' category, with Bawana being the worst at 427. The remaining areas of DTU (402), Jahangirpuri (406), Narela (406), Rohini (404) and Wazirpur (402) had deteriorating air quality levels.

An AQI between 0 and 50 is considered 'good', 51 to 100 'satisfactory', 101 to 200 'moderate', 201 to 300 'poor', 301 to 400 'very poor',

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