The air quality level in Delhi turned worse the day after Diwali as people burst firecrackers despite a ban. "No one is happy about this. It is just that Delhi does not feature in the list of top 10 polluted cities in Asia. The AAP has increased green cover by planting lakhs of trees. Stubble burning incidents have also come down. We are constantly working at it," said Priyanka Kakkar, AAP spokesperson.