Delhi's air quality falls in the category of 'very poor'

NC Network

After a small respite, again the air quality of Delhi came down to 'very poor' category on Friday as dispersion of pollutants slowed down, said the authorities.

As per the Center-run System of Air Quality and Weather Forecasting (SAFAR), The overall air quality index was recorded at 315 which falls in 'very poor' category.

Sixteen areas recorded 'very poor' air quality and 22 areas in Delhi recorded 'poor' air quality, according to data by the Central Pollution Control Board.

The PM2.5 (particles in the air with a diameter of less than 2.5 micrometres) level was recorded at 139, while the PM10 (particles in the air with a diameter of less than 10 micrometres) was recorded at 210 in Delhi on Friday.

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'.

The air quality of Delhi has showed significant improvement in the last two days after the rain washed away the pollutants but after the rain subsided, a rise in pollution level was recorded again. 

According to Indian Institute of Tropical Meteorology, fire counts observed in past 24 hours over northwest region of India were few (less than 100 counts).

"The impact of biomass burning in northwest India is not significant over Delhi," it said.

The PM2.5 concentration will improve in the next two days. "The air quality is likely to improve next two days but remain in 'poor'/'very poor' category in Delhi-NCR. The impact of biomass burning in northwest India is marginal over Delhi," it said.

With Inputs from agency.

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