Pollution Woes Return In Delhi As AQI Slips To 'Very Poor' Category
The air quality in the national capital slipped to "very poor" category on Friday with Air Quality Index at 301 as at 7 am, according to Central Pollution Control Board.
A thin layer of dust and smog engulfed the city after spells of rainfall and thundershowers earlier this week brought a brief improvement.
An AQI between zero and 50 is considered "good", 51 and 100 "satisfactory", 101 and 200 "moderate", 201 and 300 "poor", 301 and 400 "very poor", 401 and 450 "severe" and above 450 "severe-plus"
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