Delhi records 'worst' air quality of season as haze sets in, pollution to worsen on Diwali | 10 points

The national capital, which has been battling dangerous levels of pollution, recorded the "worst" air quality of this season on Sunday, adding to the woes of Delhiites. Haze engulfed Delhi on Sunday with the region recording 381 as the overall Air Quality Index in the morning, which falls in the very poor quality. According to the data of the Central Pollution Control Board, the air quality improved during the day and an overall AQI of 360 was recorded at 4 pm which also falls in very poor category. An AQI between 0 and 50 is considered "good", 51 and 100 "satisfactory", 101 and 200 "moderate", 201 and 300 "poor", 301 and 400 "very poor", and 401 and 500 "severe". According to experts, the Diwali week is expected to witness rise in pollution levels as a two-hour window remained open to burst firecrackers. The Supreme Court had ruled that bursting of firecrackers will be allowed from  8 PM to 10 PM on Diwali, however, permitting the sale and manufacture of low emission "green" firecrackers countrywide. For Christmas and New Year, cracker bursting has been allowed for 11.45 PM - 12.45 AM.

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