Structures or groups of structures used for the sale of products and services. [USGS Circ 1048]
Alexandria Digital Library Feature Type Thesaurus
Mercury and halogens in coal--Their role in determining mercury emissions from coal combustion [ More info] Explains the complex relationships between coal, mercury, and halogens in light of ongoing efforts to reduce the emission of mercury into the environment.
Mines and mineral processing facilities in the vicinity of the March 11, 2011, earthquake in northern Honshu, Japan [ More info] Number and types of mineral facilities in the area affected by the earthquake, with comments on physical infrastructure that these facilities are likely to require.
Trace metals related to historical iron smelting at Hopewell Furnace National Historic Site, Berks and Chester Counties, Pennsylvania [ More info] Iron ore containing elevated concentrations of trace metals was smelted here during 113 years of operation (1771-1883). We sampled a variety of materials nearby to determine the amount of metals such as arsenic, chromium, copper, lead, and zinc.
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