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3099310 
Book/Book Chapter 
Dust problems in the mining, milling and packaging of asbestos 
Kuyper, LN 
1970 
Oxford University Press 
Cape Town, South Africa 
Pneumoconiosis: Proceedings of the international conference, Johannesburg 1969 
42-50 
English 
is a chapter of 2803938 Pneumoconiosis: Proceedings of the international conference, Johannesburg 1969
Dust problems associated with mining, milling, and packaging amphibole asbestos (1332214) were discussed. Health problems generally encountered in the asbestos industry were reviewed. It was noted that many safety engineers do not accept the idea that exposure to asbestos dust can induce mesotheliomas 20 to 30 years later. There is, however, general agreement that asbestos fibers may be more dangerous than other other types of dusts, large inhalation exposures to asbestos will probably cause lung impairment, and the adverse health effects depend on whether the exposure is primarily to fibrous dust or to mixed fiber and rock dusts. Problems associated with mining asbestos were discussed. Problems encountered during surface handling, extraction, dust collection, disposing of tailings, and packaging at surface mills were considered. There were few serious problems associated with mining amphiboles. Most can be solved by improving ventilation of the mine shafts. Most problems associated with milling operations originate with the high manual labor content necessary because much of the rock must be hand sorted. Dust generated during tailing disposal and packaging was considered to be the most serious problem. Possible solutions to dust problems encountered during packaging were discussed. These include using pressure packed fibers and multiwall paper sacks. 
Shapiro, HA 
3rd International Conference on Pneumoconiosis 
Johannesburg, South Africa 
April 24 - May 2, 1969