Maximum Permissible Concentrations of Aerosols of Fibrogenic Action

The following are maximum permissable concentrations of dusts for industrial hygiene standards: Dusts, which possess sharply pronounced fibrogenic action, quantitatively comparable with the action of quartz - 1 mg/cu m; dusts, which are characterized by completely distinct fibrogenic action, but les...

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Bibliographic Details
Main Authors: Velichkovskii,B T, Latushkina,V B
Format: Report
Language:English
Subjects:
AEROSOLS
Bronchitis
DUST
Environmental Health and Safety
EXPOSURE(PHYSIOLOGY)
Industrial atmospheres
INDUSTRIAL HYGIENE
INDUSTRIAL MEDICINE
OCCUPATIONAL DISEASES
Pneumoconiosis
RESPIRATORY DISEASES
TRANSLATIONS
USSR
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Summary:The following are maximum permissable concentrations of dusts for industrial hygiene standards: Dusts, which possess sharply pronounced fibrogenic action, quantitatively comparable with the action of quartz - 1 mg/cu m; dusts, which are characterized by completely distinct fibrogenic action, but less than that of quartz - 2 mg/cu m; dusts, which lead to the development of pneumoconiosis over a substantially more prolonged average period - 4 mg/cu m; dusts possessing weak fibrogenic reaction, but expressed bronchogenic activity - 6 mg/cu m; Dusts, which cause an insignificant proliferative-cellular reaction with the development only of reticulin fibers and (or) of weak bronchogenic activity - 8-10 mg/cu m. Edited machine trans. Printsipy i Metody Ustanovleniya Predelno Dopustimykh Kontsentratsii Vrednykh Veshchestv v Vozdukhe Proizvodstvennykh Pomeshchenii. 25-29 Nov 68. Materialy Mezhdunarodnogo Seminara Uchenykh Sotsialisticheskikh Stran, n.p., Moscow, 1970 p83-95, by Gale M. Weisenbarger.