Metal Stocks in Society – Scientific Synthesis - Unep Dtie

Metal Stocks in Society – Scientific Synthesis
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Appendices
The Appendices for this paper consists of two
tables. The first provides background information
for each metal in the study. The headings
of these tables are defined as follows:
Metal: Scientific abbreviation of element (except
for steel and stainless steel, which are
denoted by ST and SS, respectively)
Reservoir: A category which groups a collection
of related final goods in which a metal
resides in-use.
Predominant final goods: Major final goods
within a reservoir category.
End-use fraction: As of 2006, the weight percentage
of metal produced that is an inflow
for each reservoir. Percentages refer to specific
metal. For example, the 25% listed for
aluminum that will be used for building and
construction means that 25% of aluminum
inflow will go into building and construction.
Estimated residence time: Amount of time (in
years) that a metal will remain in stock before
being discarded. Values are taken from
the literature. In the case where a value could
not be obtained, a dash is used.
The second table provides information on
each in-use stock estimate collected from
the literature.