Learning Basic Electronics
When most people think of recycling, they picture green bins full of glass, newspapers and plastic milk jugs set out on the sidewalk for trash day. But old electronics devices also contain valuable materials that can be reclaimed--along with poisonous substances that should be kept away from people and out of the environment.
Toxic TVs
As technology advances, consumers want the latest and greatest electronics. As a result, more and more e-waste is generated every year. Hazardous materials are contained inside most consumer electronics, including:
- Computer CPUs and monitors
- Keyboards
- Power supplies
- Speakers
- TVs
- DVD and VHS players
- Cellphones
- Video game systems
- Printers
- Telephones
- Microwave ovens
- Toasters
- Pagers
- Surge Protectors
- Fax Machines
Color cathode ray tubes (CRTs), found in older TVs and computer monitors, contain several pounds of lead. The poisonous metal mercury is used in circuit boards. Other toxic materials found in electronics include chromium, cadmium, zinc, and brominated flame retardants.
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