Radiologic Abnormalities in South African Mica Millers: A Survey of a Mica Milling Plant in the Limpopo Province

From: International Journal of Occupational and Environmental Health | Date: July 1, 2004| Author: Nyantumbu, Busisiwe; Rees, David; Solomon, Albert; Venter, Engela | Copyright information

All 73 workers at a South African mica milling plant were surveyed for radiographic evidence of abnormalities related to dust exposures at work. Chest x-rays were taken and questionnaires administered to determine occupational and environmental exposure histories. Dust levels to which workers were exposed were measured. All but one of 12 airborne inhalable and respirable dust levels were below the occupational exposure limits (OEL-RLs) of 10 mg/m^sup 3^ and 5 mg/m^sup 3^ respectively. The mic...

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