Delhi's air quality plummets to 'very poor' after 'unusual improvement'

The increase in pollution can be attributed to a decline in wind speed as compared to the past two days

Delhi's air plummeted to 'very poor' on Tuesday after showing 'unusual improvement' in the last two days with the decline in wind speed, officials said.

The overall air quality index (AQI) increased from 262 (poor) to 349 (very poor) category, according to the Centre-run System of Air Quality and Weather Forecasting (SAFAR).

Anand Vihar recorded "severe" air quality. The AQI in 23 areas was registered in the "very poor" category, while the situation was "poor" in 12 areas.

The level of PM2.5 (particles in the air with a diameter of less than 2.5 micrometres) was recorded at 183, and the