Electrical and electronic waste is made of various components, some of them containing toxic substances. If these substances not handled properly, then have an adverse impact on human health and the environment. These hazards occur due to the improper disposal processes used. A personal computer contains toxic chemicals like cadmium, lead, mercury, beryllium, polyvinyl chloride, BFR and phosphor compounds. Adverse effects of these chemicals given below.
Lead: It exerts toxic effects on the body like organic affective syndrome, the genitourinary and damage the peripheral nervous systems. It also affects the reproductive system of male and female.
Mercury: It damages the genitourinary system and nervous system too. If mercury spreads into the water, then it converts into methylated mercury and bio-accumulates in living organisms.
Cadmium: It is poison and accumulates in the human body and affects the kidneys.
Polycyclic aromatic hydrocarbons (PAH): It affects the bladder, skin and it may cause the skin and lung cancers
All these chemicals come from all electronic and electrical appliances such as computers, mobile phones, refrigerators, televisions (TVs), washing machines and many other household items. The new squander collection increase market penetration for the recovery process. It is a challenge for disposal process. Some of the countries like Europe and Australia have advanced hardware for the recovery process. All this has made management an issue of environment and health concern.
The European Council has planned WEEE directive in 2003, which was put restrictions on the producers and companies for manufacture of electronic goods. EU sets some target to recover these goods for proper treatment. The European council has been also proposed another rule called RoHS. The Directive has made updates since then but the in 2014.
You can get more information of recycling process from below image