Trace Elements in West Virginia Coals

Selenium (Se) Summary Statistics

Histogram of selenium (Se) content, in ppm on a whole coal basis, in West Virginia coal samples (larger version) — Select the histogram to open a larger version.

Selenium in West Virginia coals averaged 4.20 ppm (± 2.83 ppm) with a histogram skewed toward low values and a maximum value of 21.3 ppm in a bench of the Stockton coal. Selenium correlates only slightly with thorium (r = +0.6032) and not at all with ash yield (r = +0.4525), total sulfur, pyritic sulfur or any other trace elements.

General Elements Page
HAP Elements Page
All Elements Summary Statistics Table
HAP Summary Statistics Table

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Page content last revised: March 2, 2002