Calciumsulfat (alveolengängige Fraktion)
MAK-Begründung, Nachtrag
Andrea Hartwig1 (Vorsitz der Ständigen Senatskommission zur Prüfung gesundheitsschädlicher Arbeitsstoffe, Deutsche Forschungsgemeinschaft)MAK Commission2
1 Institut für Angewandte Biowissenschaften, Abteilung Lebensmittelchemie und Toxikologie, Karlsruher Institut für Technologie (KIT), Adenauerring 20a, Geb. 50.41, 76131 Karlsruhe, Deutschland
2 Ständige Senatskommission zur Prüfung gesundheitsschädlicher Arbeitsstoffe, Deutsche Forschungsgemeinschaft, Kennedyallee 40, 53175 Bonn, Deutschland
Abstract
The German Commission for the Investigation of Health Hazards of Chemical Compounds in the Work Area has re-evaluated calcium sulfate (respirable fraction). In 2012, the general threshold limit value for the respirable fraction (R fraction) of dust was revised, resulting in the concept of “granular biopersistent dusts”. However, due to its proven solubility, calcium sulfate cannot be regarded as biopersistent. Data to derive a specific MAK value (maximum concentration at the workplace) are not available. Therefore, the MAK value and the assignment to Pregnancy Risk Group C for the respirable fraction of calcium sulfate are withdrawn.
