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U.S. Domestic Supply Source: Chlor-alkali<br />
Plants<br />
• Elemental mercury released to market upon closure of plants<br />
or conversion to mercury-free technology<br />
– Current Inventory: approx. 2,100<br />
metric tons<br />
– Largest U.S. private-sector source of stored and in-use<br />
mercury.<br />
– Facilities generally operate 40 to 60 years.<br />
• No new construction in U.S. since 1970.<br />
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