Exposure of nickel and the relevance of nickel sensitivity among hospital cleaners

Abstract
The Ni content of water specimens from consecutive stages during the cleaning process in a Danish hospital was analyzed. Statistically significant increases of the Ni concentrations were found from step to step of the cleaning, eventually exceeding the theoretical sensitizing safety limit. The relevance of the findings in relation to hand eczema is discussed. [Ni is an important cause of allergic contact dermatitis.].