Jaipur: The vibrant colours and light produced by firecrackers are nothing but result of metal and chemical combustion. Once a rocket or sparkler is burnt, it produces dust of metals and chemicals that remain suspended for long time causing serious health aliments.

City doctors claimed that people inhale air with partially combusted low volatile organic compounds which remain present in the air for many days. The Hazardous Chemical Act does not allow use of these metals as they are poisonous.