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Cross-Sectional Study on Respiratory Morbidity in Workers After Exposure to Synthetic Amorphous Silica at Five German Production Plants
Exposure Assessment and Exposure Estimates Objectives: Synthetic amorphous silicas (SASs) are nanostructured polymorphs of silicon dioxide. We compared two different exposure assessments. Methods: This study estimated cumulative exposure to inhalable SAS dust in 484 male workers from five German SAS-producing plants. Two procedures (P1 and P2) were applied. P1 was based on an expert assessment. P2 was a multiple exposure assessment (15 scenarios) anchored by a recent measurement series (1375 personal measurements of inhalable SAS dust concentration) and used expert assessments. Results: Cumulative...

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