The use of firecrackers on Diwali enhances the focus of dust and pollutants in the air. Immediately after firing, the great dust particles get settled about the surrounding surfaces which are full of chemicals like copper, zinc, sodium, lead, magnesium, cadmium and pollutants like oxides of sulfur and nitrogen. https://vashikaran44196.uzblog.net/facts-about-diwali-revealed-44684945