Green sparklers use 32% potassium nitrate, 40% aluminium powder, 11% aluminium chips, and 17% “proprietary additives” to reduce particulate matter PM10 and PM2.5 to 30%.
Similarly, a new formulation of a ‘bomb’ named ‘SWAS’ (or safe water releaser) uses 72% of a “proprietary additive”, 16% potassium nitrate oxidiser, 9% aluminium powder, and 3% sulphur to reduce PM10 and PM2.5. On its website, NEERI claims that green crackers when exploded also emit similar levels of sound (100-10dBA) associated with traditional crackers.
https://www.thehindu.com/sci-tech/energy-and-environment/how-green-are-deepavali-crackers/article29807948.ece
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Green sparklers use 32% potassium nitrate, 40% aluminium powder, 11% aluminium chips, and 17% “proprietary additives” to reduce particulate matter PM10 and PM2.5 to 30%. Similarly, a new formulation of a ‘bomb’ named ‘SWAS’ (or safe water releaser) uses 72% of a “proprietary additive”, 16% potassium nitrate oxidiser, 9% aluminium powder, and 3% sulphur to reduce PM10 and PM2.5. On its website, NEERI claims that green crackers when exploded also emit similar levels of sound (100-10dBA) associated with traditional crackers. https://www.thehindu.com/sci-tech/energy-and-environment/how-green-are-deepavali-crackers/article29807948.ece