Studies of Hydrocarbons on Mineral Dusts

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Abstract
Chrysotile asbestos adsorbed 100% 3:4-benzypyrene from solution after 48 hours at 37 C compared with 40% and 47% for croci-dolite and coal, respectively, and 10% for amosite. No correlation was found between the degree of adsorption of 3:4-benzpyrene and the extent to which it was eluted by serum. Serum eluted the naturally occurring oils more effectively from coal dust than it did from croci-dolite fiber and was slightly more effective than cyclohexane in eluting 3:4-benzpyrene from coal and crocidolite. 3:4-Benzpyrene was eluted more easily from "natural" coal and crocidolite than it was after it was freshly adsorbed on dusts previously freed of their naturally associated hydrocarbons. These findings are discussed in relation to the pathogenesis of coal workers'' pneumoconiosis and asbestos malignancy.