"Coal Ash" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus,
MeSH (Medical Subject Headings). Descriptors are arranged in a hierarchical structure,
which enables searching at various levels of specificity.
Residue generated from combustion of coal or petroleum.
Below are MeSH descriptors whose meaning is more general than "Coal Ash".
Below are MeSH descriptors whose meaning is more specific than "Coal Ash".
This graph shows the total number of publications written about "Coal Ash" by people in this website by year, and whether "Coal Ash" was a major or minor topic of these publications.
To see the data from this visualization as text, click here.