Delhi Schools close down due to pollution: A marked drop in North India air quality has caused overall school closures and or shift to online classes in some areas. Immediate action was taken by Delhi, Haryana and Maharashtra, whereas Punjab and Uttar Pradesh kept a close watch over the situation. Here's a summary of the Air Quality Index (AQI) level in the affected states and step... https://cmitimes.in/headlines/delhi-schools-closed-due-to-pollution-haryana-schools-declare-holidays/