Environmental gas displacement: three accidental deaths in the workplace |
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Authors: | Gill James R Ely Susan F Hua Zhongxue |
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Affiliation: | New York City Office of Chief Medical Examiner, New York, New York 10016, USA. Alzanolomb@aol.com |
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Abstract: | The authors describe three accidental deaths resulting from occupational hazards involving environmental gas alterations. One involved the displacement of oxygen caused by leakage of liquid nitrogen during the installation of a magnetic resonance imaging system. Two involved elevated environmental carbon dioxide concentrations: dry ice sublimation in a walk-in refrigerator in a research laboratory, and activation of a carbon dioxide fire alarm-extinguisher system by a woman locked in a bank vault. The autopsy findings, scene investigations, and certifications of these deaths, as related to the mechanisms of death, are discussed. |
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