The places are Jahangirpuri, Narela, Ashok Vihar, Vivek Vihar, Dwarka, Mundka, Rohini, Wazirpur, Okhla, Bawana, Anand Vihar, Punjabi Bagh and R K Puram.
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'.