Using firecrackers on Diwali improves the focus of dust and pollutants in the air. Soon after firing, the wonderful dust particles get settled over the surrounding surfaces which are full of substances like copper, zinc, sodium, direct, magnesium, cadmium and pollutants like oxides of sulfur and nitrogen. ​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​... https://youtu.be/rrCK--j4qAU