Pittsburgh Coal Bed County Statistics (Chemistry) in
Pennsylvania, Ohio, West Virginia, and Maryland
This dataset is a polygon coverage of counties limited to the extent of
the Pittsburgh coal bed resource areas and attributed with statistics
on these coal quality parameters: ash yield (percent), sulfur (percent),
SO2 (lbs per million Btu), calorific value (Btu/lb), arsenic (ppm)
content and mercury (ppm) content. …