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Existing U.S. Product and Process<br />
Demand (cont’d)<br />
• Button Cell Batteries<br />
– 2004: 2.6 metric tons<br />
– 2001: 3.0 metric tons<br />
– Mercury consumption in batteries down from 1,000 metric tons in<br />
early 1980s due to federal laws.<br />
– Button cell (including zinc air, silver oxide and alkaline<br />
manganese oxide) and mercuric oxide (only used in military and<br />
medical equipment) only remaining types.<br />
– Members of National Electrical Manufacturers Association<br />
(NEMA) plan to phase out mercury use in button-cell battery<br />
production by 2011.<br />
– Four states enacted legislation prohibiting the distribution of<br />
items containing mercury-added button cell batteries.<br />
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