NEW DELHI — Delhi's air quality showed a slight improvement on Thursday due to increased wind speed and settled in the poor category, authorities said.
The overall air quality index was recorded at 282 which falls in poor category, according to data by the Central Pollution Control Board (CPCB).
While, eleven areas in Delhi recorded very poor air quality, 24 places recorded poor air quality, according to the data.
The level of PM2.5 (particles in the air with a diameter of less than 2.5 micrometres) was recorded at 135 and the PM10 level was recorded at 273, it said.
According to the Indian Institute of Tropical Meteorology (IITM), the slight improvement in the air quality was due to increased wind speed.
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'.
Delhi's air quality has been registered in the very poor category since last week and on Wednesday some areas even recorded severe pollution level.