Delhi air quality remains 'very poor' despite improvement in readings

The CPCB said 25 areas of Delhi recorded 'very poor' air quality while 11 areas recorded 'poor' air quality

Delhi's air quality remained in the 'very poor' category for the fourth consecutive day on Thursday due to "unfavourable meteorological conditions" that slowed down dispersion of pollutants even as thick haze engulfed the city, authorities said. 

However, improvements were recorded in PM2.5 and PM10 readings in the national capital.

The overall air quality index (AQI) of Delhi was recorded at 335, according to the Central Pollution Control Board (CPCB) data.

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