Air quality, Delhi, pollutionNew Delhi: A layer of smog blanketed Delhi Thursday morning, as the air quality index (AQI) was at 389 at 7.15 a.m., falling into the “very poor” category. However, some areas continued to have severe air pollution levels. According to the Central Pollution Control Board (CPCB) data, in 12 areas of Delhi, the AQI level […]