Thick Layer of Smog enters Delhi,National slips into emergency zone

Thick Layer of Smog enters Delhi,National slips into emergency zone

On Wednesday the Air Quality in Delhi continues to remain in the severe condition with the pollution levels to hit severe or emergency category.

As per the Central pollution Control Bureau the air quality index in Delhi’s lodhi Road read 500 at 6 am and 472 in Noida.On Tuesday,Delhi’s AQI stood at 425 at 4 pm and 437 at 9 pm.It was 360 at 4 pm on Monday.

The levels of PM 2.5-tiny particulate matter less than 2.5 microns in diameter that can enter deep into the lungs and even the bloodstream -- shot up to 337 micrograms per cubic metre, breaching its emergency threshold of 300, by 9 pm in Delhi-NCR.

The levels of PM10 increased to 484 micrograms per cubic metre, nearly five times the safe limit of 100 micrograms per cubic metre. Most of the 37 air quality monitoring stations across Delhi recorded air quality in the severe category.

An AQI between 201 and 300 is considered 'poor', 301-400 'very poor' and 401-500 'severe'. An AQI above 500 falls in the 'severe plus' category.