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The relationship between the Hardgrove Grindability Index and the potential for respirable dust generation.
Proceedings of the Coal Mine Dust Conference, Morgantown, West Virginia, October 8-10, 1984. Peng, SS, ed., Morgantown, WV: West Virginia University, 1984 Oct; :250-255
Based on the coal samples that have been tested thus far, HGI is a good predictor of the quantity of respirable dust that will be generated in a plate mill. The Wharton seam, an anthracite, produced the least amount of respirable dust while the Upper Freeport, a medium volatile bituminous, produced the most. It, however, cannot be generalized that a mine in an anthracite seam will be less dusty than a mine in a bituminous seam since there are many other variables to consider. Thus, the fact that anthracite mines appear to be more conducive to black lung development than bituminous mines may be attributed more to the methods of mining than to the dustiness of the seams.
Mining-industry; Respirable-dust; Coal-mining; Underground-mining; Models
Proceedings of the Coal Mine Dust Conference, Morgantown, West Virginia, October 8-10, 1984
Page last reviewed: March 11, 2019
Content source: National Institute for Occupational Safety and Health Education and Information Division