What is silicosis?
1948; Churchill Livingstone; Volume: 29; Issue: 8 Linguagem: Inglês
10.1016/s0041-3879(48)80039-5
ISSN1878-6006
Autores Tópico(s)Occupational and environmental lung diseases
ResumoThe essential agent in the causation of true or ‘classical’ silicosis, as distinguished from non-specific pneumoconiosis, is the freshly-cloven silica particle. The pathological process basically consists in the hydration of the silica particle at the expense of the cell protoplasm. Because of its atomic lattice-structure, quartzite, when powdered, yields a more virulent dust than other silica formations. Fully hydrated silica — silica hydrosol — sometimes mistakenly called ‘silicic acid’ — is non-toxic and enters freely into the metabolism of plants and animals. Partly hydrated suspensions of silica in water, ‘colloidal silica,’ retain some of the chemical activity of the dry powder, but in a much lesser degree.
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