A thick layer of smog blankets Delhi on November 27. Additionally, the air quality of national capital also took a major hit due to a combination of firecracker emissions, stubble burning and unfavourable meteorological conditions in past one month. According to the Air Quality Index (AQI) data, major pollutants at Lodhi road area were PM 2.5 at 205 in ‘poor’ category and PM 10 at 210, also in 'poor' category. In Delhi, public health emergency has been declared by EPCA. To curb air pollution, Delhi govt had earlier implemented odd-even scheme from Nov 04-15.