Trace Elements in West Virginia Coals
Stratigraphic Distribution of Mercury (Hg)
The stratigraphic distribution of Mercury (Hg) showed generally very
low and variable mercury contents in West Virginia coals. Upper Pennsylvanian
coals consistently contained 0.1-0.3 ppm mercury. Middle Pennsylvanian
coals exhibited lower mercury contents and Lower Pennsylvanian coals exhibited
low but erratic mercury abundances. Highest Hg content coals were
in thin, high sulfur, and generally unminable (see
the historic coal production) upper Allegheny and Conemaugh group (Lower
Kittanning through Harlem) coals in Monongalia, Preston and Mineral counties
(see cautionary note page).
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