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A fatal workplace nickel carbonyl exposure

An employee of a metal coating company disassembled and cleaned a nickel carbonyl reaction vessel. The vessel reportedly had been opened and ventilated for 3 days prior to cleaning. A subsequent investigation by the Occupational Safety and Health Administration (OSHA) determined that the worker likely inhaled nickel carbonyl vapor after the chemical splashed from a disconnected pipe fitting. The worker noticed no odor and was unaware that he had been exposed. The exposure duration may have ranged from 30min to several hours, depending on whether the splash contaminated the worker’s clothing.