Report on the state of health in Delhi
As many as 27 deaths per day were caused due to respiratory diseases in Delhi in the year 2017, according to a report by Mumbai-based NGO Praja. The report on the "State of Health in Delhi", says that data by the Central Pollution Control Board (CPCB) shows that Delhi had only five good AQI days in the last four years (2015-18). The average air quality index (AQI) levels in Delhi have been poor in the last four years - 231 in 2015, 255 in 2016, and 227 in 2017 and 2018. The report said that the number of deaths by respiratory diseases which are caused and aggravated by air pollution, effects a serious threat that Delhi residents face on a daily basis.