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Science 5 November 1971:
Vol. 174. no. 4009, pp. 585 - 587
DOI: 10.1126/science.174.4009.585
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Articles

Inorganic Particles in Cigars and Cigar Smoke

Arthur M. Langer 1, Anne D. Mackler 1, Ivan Rubin 1, E. Cuyler Hammond 1, and Irving J. Selikoff 1

1 Environmental Sciences Laboratory, Mount Sinai School of Medicine of the City University of New York, New York 10029

A number of crystalline and optically isotopic inorganic materials are used in the manufacture of reconstituted tobacco sheets. These sheets, used primarily in inexpensive cigars, often contain diatomaceous earth, which exists in part in the silica mineral form cristobalite, a known fibrogen. Diatom fragments with this crystalline form have been observed in the main smoke stream of cigars made with these tobacco sheets.


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Science. ISSN 0036-8075 (print), 1095-9203 (online)