Delhi air quality deteriorates

Delhi air quality deteriorates


Days after the pollution remained stable due to rains last week, the air quality in the national capital has deteriorated again.

The Air Quality Index (AQI) in Delhi on Tuesday reached 302 in the 'very poor' category, according to the latest estimates updated by System of Air Quality and Weather Forecasting And Research (SAFAR). SAFAR estimates updated at 8.30 am on Tuesday showed Chandni Chowk to be the most polluted area in the national capital with an AQI of 441 in the 'hazardous' category.

While PUSA Road, Lodhi Road IIT-Delhi had some clean air with an AQI of 252, 269 and 293 respectively in the 'poor' category. Dhirpur Road, Delhi University, Mathura Road and Indira Gandhi International Airport (Terminal-3) recorded PM 2.5 count of 326, 302, 311 and 312, all in the 'poor' category.

AQI between the range of 51 and 100 is considered as 'satisfactory', 101-200 is 'moderate', 201-300 falls under the category of 'poor'. While 300-400 is considered as 'very poor', levels between 401-500 fall under the 'hazardous' category.

'The overall Delhi AQI is likely to deteriorate further to 'very poor' category by Tuesday afternoon. SAFAR model further suggests deterioration in air quality to the middle-end of very poor category by Wednesday. An increase in surface winds is forecast by February 5, and this is likely to improve air quality to lower end of 'very poor' to the 'poor' category by February 5 afternoon,' SAFAR forecast said.