Long-term sampling of airborne cadmium dust in an alkaline battery factory

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Abstract
Concentrations of Cd in workroom air in a Swedish battery factory were estimated for 1946-1976. A sampling strategy was chosen before 389 stationary and 190 mobile measurements took place between Dec., 1974 and Feb., 1976. Observations made by the company can be used together with data collected in the present study. The dust in the factory consisted mainly of respirable particles. Cyclic variation over time was absent. Type of work affected the concentration of airborne Cd dust. Based on these findings earlier measurements in the factory were critically evaluated. Due to actions taken by the company, the average level of Cd in workroom air decreased from about 5000 .mu.g Cd/m3 air in 1946 to about 10 .mu.g Cd/m3 in 1976.

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