Delhi AQI: What is PM2.5 and the row over air pollution data post Deepavali?
Congress leader Ajay Maken flagged the non-availability of PM 2.5 readings at 25 of Delhi’s 39 air quality monitoring stations on the night of Deepavali
Congress leader Ajay Maken flagged the non-availability of PM 2.5 readings at 25 of Delhi’s 39 air quality monitoring stations on the night of Deepavali