This API provides data on ash content in fossil fuels. Data organized by fuel type, i.e., coal, bituminous coal, subbituminous coal, lignite coal, and petroleum coke. Also by...

Data on the ash content of coal that is shipped to the electric power sector. Data organized by mine state and by coal, i.e., lignite, anthracite, subbituminous, bituminous,...

Data on the ash content of coal that is shipped to the electric power sector. Data organized by plant state and by coal, i.e., lignite, anthracite, subbituminous, bituminous,...