Airlines informed passengers that flight schedules at the Delhi Airport might be impacted due to adverse weather conditions caused by dense fog which covered the national capital on Sunday.
An air quality index (AQI) is an indicator that is developed by government agencies to communicate to the people and masses how polluted the air currently is or how polluted it is forecast to become. Remember, the higher the AQI, the worse the air.
The decision to advance the winter break, which is usually given in December, has been taken keeping in mind the GRAP-IV measures being implemented in the city, Delhi University said in a notification.
The AQI transforms complex air quality data of various pollutants into a single number. Here are the index's eight constituents, the pollutants' sources and why they are cause for concern.