The air quality in Delhi has turned from 'poor' to 'very poor' in the last few days. And is expected to deteriorate between November 1 and November 10 i.e during Diwali festival. The CCB has advised people to not to go for jogging and reduce car use. An order related to this is likely to come by Saturday. Also, 5 areas in Delhi- Anand Vihar, Dwarka Sector 8, Narela, Punjabi Bagh and Rohini have shown severe pollution levels.