Digital TV

 Environmental issues DTV

The adoption of a broadcast standard incompatible with existing analog receivers has created the problem of large numbers of analog receivers being discarded during the digital television transition.

An estimated 99 million unused analog TV receivers are in storage in the US alone and, while some obsolete receivers are being retrofitted with converters, many more are simply dumped in landfills where they represent a source of toxic metals such as lead as well as lesser amounts of materials such as barium, cadmium and chromium. While the glass in cathode ray tubes contains an average of 3.62 kilograms (8.0 lb) of lead (amount varies from 1.08 lb to 11.28 lb, depending on screen size but the lead is "stable and immobile") which can have long-term negative effects on the environment if dumped as landfill, the glass envelope can be recycled at suitably-equipped facilities. Other portions of the receiver may be subject to disposal as hazardous material. 

Local restrictions on disposal of these materials may vary widely.

Junkyard with old tv 's
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