Two groups shared the resources of a biological laboratory. One group sterilized waste biological solutions through use of an autoclave. The other group sterilized the waste solutions through addition of sodium hypochlorite bleach; the procedure was normally performed in a fume hood as the resulting mixture had a foul odor. A specific task required the use of the fume hood for a 1 week period; the waste biological solutions were mixed with bleach and left for the day in a nearby sink. The worker that was required to be in front of the fume hood for the 1 week duration suffered an upper respiratory tract injury in the form of vocal cord dysfunction due to exposure to the resultant chloramine and cyanogen chloride gases.

中文翻译：

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慢性肺对暴露于氯胺和氯化氰的实验人员的影响

两个小组共享了生物实验室的资源。一组使用高压灭菌器对生物废液进行了灭菌。另一组通过添加次氯酸钠漂白剂对废物溶液进行了消毒。该过程通常在通风橱中进行，因为所得混合物有异味。一项特定的任务需要使用通风橱1周；将废生物溶液与漂白剂混合，然后放在附近的水槽中放置一天。由于必须暴露在所产生的氯胺和氯化氰气体中，必须在通风橱前工作1周的工人以声带功能障碍的形式遭受上呼吸道损伤。