Disposal of electronic devices like mobile phones are becoming a larger problem every day. In this wireless technological world, electronic devices like mobile phones are considered as a problematic component, as they have a large amount of hazardous metal in them. The circuit board of the mobile phones has metals like cadmium, arsenic, lead, beryllium, copper, zinc and nickel. All these chemicals belong to the persistent toxins. They are very harmful, Such that they build up in the food chain and do not break. These persistent bio-accumulative toxins create many problems like reproductive, neurological and development disorder. Most of the toxins in the mobile phones are in printed wires and in the liquid-crystal display.
One of the most important hazardous metals in mobile phones is lead. This creates kidney problem, affect the nervous system and immunity system too. Another important hazardous constituent is brominated flame retardant, to reduce the risk of fire. This retardant are in the printed wiring boards, cables and the protective plastic housing around them. Research indicates that some flame retardant is bio-accumulative, Persistent and toxic. There are two types of flame retardants poly-brominated biphenyl and poly-brominated diphenyl. These flame retardants also have their impact on the endocrine and immune system.
Apart from this the rechargeable batteries also contain number of highly toxic substances. In early mid 1990