Search on: COAL 
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Descriptor English:   Coal 
Descriptor Spanish:   Carbón Mineral 
Descriptor Portuguese:   Carvăo Mineral 
Tree Number:   D20.345.108
G03.230.132.258.108
Definition English:   A natural fuel formed by partial decomposition of vegetable matter under certain environmental conditions. 
Indexing Annotation English:   /adv eff permitted but do not use for COAL MINING + PNEUMOCONIOSIS or ANTHRACOSILICOSIS unless particularly discussed as coal
History Note English:   68(64); was in Cat J only 1964-81 
Allowable Qualifiers English:  
adverse effects analysis
classification economics
history microbiology
poisoning parasitology
radiation effects supply & distribution
statistics & numerical data standards
toxicity utilization
virology  
Record Number:   3059 
Unique Identifier:   D003031 

Occurrence in VHL:
 

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