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对３３７名氯气生产工人进行健康检查，发现车间空气氯气浓度０．０６ｍｇ／ｍ３～１．６４ｍｇ／ｍ３，呼吸道症状和咽部充血发生率明显高于对照，且与吸烟和工龄有一定关系。
A total of 337 chlorine workers were inspected and found that the concentration of airborne chlorine in the workshop was 0.06mg / m3 ~ 1.64mg / m3. The incidence of respiratory symptoms and pharyngeal congestion were significantly higher than those of the controls, and were related to smoking and length of service.