New Delhi: The national capital on Sunday recorded worst air quality of the season as the overall Air Quality Index stood at 381, which falls in the very poor category. According to Central Pollution Control Board (CPCB), the AQI of 381 just points below severe pollution level. Also Read - Congress Leader Booked For Hiding His Nizamuddin Visit; His Family Test COVID-19+

Notably, 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”. Also Read - After Doctors, 3 Cancer Patients Test Covid-19+ at Delhi State Cancer Institute

Authorities attribute the dip in air quality to localised factors like construction dust, vehicular pollution as well as regional factors like pollution due to stubble burning from Punjab and Haryana. A thick haze due to smog engulfed the national capital which recorded the worst air quality of this season, authorities said. Also Read - Operation SHIELD: Delhi Govt’s New Plan to Combat Coronavirus Pandemic | All You Need to Know

Twelve pollution monitoring stations located in various parts of Delhi recorded severe air quality while 20 stations recorded very poor air quality, according to data by the Central Pollution Control Board. A CPCB-led task force has recommended to Supreme Court appointed Environment Pollution Control Authority implementation of stringent measures from November 1 to 10, predicting further deterioration in the air quality ahead of Diwali.

Some of these recommendations include shut down of coal and biomass factories, intensification of inspection by the transport department to check polluting vehicles and control traffic congestion in Delhi NCR during November 1-10. The task force also issued an advisory to the public, asking them to avoid outdoor strenuous activities and minimise the use of private vehicles.

The task force also warned that at beginning of November the situation may get further deteriorated on account of localized emissions during festival and regional contribution due to stubble burning.

(With agency inputs)