Prof. Alfred Fröhlich

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Exposure to silica dust was studied in the grinding of castings in a steel foundry that used conventional personal sampling methods and new real-time sampling techniques developed for the identification of high-exposure tasks and tools. Approximately one-third of the personal samples exceeded the National Institute for Occupational Safety and Health(More)
Auch aus diesen neuen, an marinen Tieren (Tunicata, Crustacea decapoda) durchgeführten Versuchen geht hervor, daß durch Vorbehandlung mit Theophyllin das Eindringen ungiftiger (Ferrocyankalium) und giftiger (Säurefuchsin, Pikrotoxin) Substanzen in die Leibessubstanz bzw. zu den giftempfindlichen Organen des Nervensystems sehr erleichtert wird. Die(More)
Researchers from the National Institute for Occupational Safety and Health (NIOSH) conducted a joint survey with the New Jersey Department of Health (NJDOH) to measure crystalline silica exposures and evaluate the adequacy of the existing control measures for reducing these exposures at a sanitary ware pottery. This survey found that 95% of the personal and(More)
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