Abstract
Employee exposures to airborne contaminants during sugar-beet processing and to welding fumes during facility maintenance were evaluated at a sugar beet mill 2063) owned by the American Crystal Sugar Company (ACSCO), in response to a request from the American Federation of Grain Millers International Union and ACSCO's management. Personal and general air samples were collected and analyzed for several chemicals, total and respirable dusts, and metals and welding fumes. Methods included gravimetric analysis, chromatography, spectroscopy, and x-ray diffraction. Exposures in excess of the most-stringent criteria were found for calcium-oxide, coal dust, crystalline silica, sugar dust, and formaldehyde. Areas of greatest exposure included lime-kiln operation, coal handling, and storage-bin housekeeping. Recommendations include use of respiratory protection, dust and fume containment, and formaldehyde replacement.
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