The air quality of national capital is continuously deteriorating with rising of pollutants in the atmosphere. Air Quality Index was again in ‘very poor’ category at several locations in the national capital on November 1. A thick layer of smog enveloped in Delhi related to which residents raised their concerns. Delhi Government has launched campaigns like -- ‘Yudh Pradushan ke Virudh’ and ‘Red Light On, Gaadi Off’ to combat the problems of air pollution.