秦宏, 王昌松. 某电子组装车间加湿器热事件调查[J]. 环境与职业医学, 2017, 34(2): 165-168. DOI: 10.13213/j.cnki.jeom.2017.16390
引用本文: 秦宏, 王昌松. 某电子组装车间加湿器热事件调查[J]. 环境与职业医学, 2017, 34(2): 165-168. DOI: 10.13213/j.cnki.jeom.2017.16390
QIN Hong, WANG Chang-song. Investigation of an occupational humidifier fever event in an electronic assembly workshop[J]. Journal of Environmental and Occupational Medicine, 2017, 34(2): 165-168. DOI: 10.13213/j.cnki.jeom.2017.16390
Citation: QIN Hong, WANG Chang-song. Investigation of an occupational humidifier fever event in an electronic assembly workshop[J]. Journal of Environmental and Occupational Medicine, 2017, 34(2): 165-168. DOI: 10.13213/j.cnki.jeom.2017.16390

某电子组装车间加湿器热事件调查

Investigation of an occupational humidifier fever event in an electronic assembly workshop

  • 摘要: 目的 调查分析一起工作场所发生的加湿器热事件,为今后调查处理此类事件提供经验和依据。

    方法 采用病例调查、现场环境调查等现场流行病学调查方法,并结合实验室检测结果进行分析。

    结果 同车间共出现32例病例,罹患率为50%,车间配备2台超声波空气加湿器,加湿器的开启与员工发病密切相关。实验室对现场采集的饮用水、加湿器管道水及水箱存水等样品进行了检测,在加湿器水箱存水样品中检出蜡样芽孢杆菌、铜绿假单胞菌。2号加湿器内采集的管道水和水箱存水的菌落总数分别达到1 800 cfu/mL和600 cfu/mL,显示存水中滋生有大量细菌。

    结论 这一起加湿器热事件是由加湿器中的病原微生物(主要为蜡样芽孢杆菌、铜绿假单胞菌)通过水雾传播引起的。

     

    Abstract: Objective To investigate a humidifier fever event in a workshop, and provide evidence for dealing with such events in the future.

    Methods Field epidemiological survey such as case investigation and field environment investigation combining laboratory test was conducted to collect data.

    Results A total of 32 cases were reported in the event, with a morbidity rate of 50%. Two ultrasonic humidifiers were equipped in the workshop, and the use of humidifiers was closely related to the occurrence of humidifier fever. Drinking water, humidifier pipe water, and tank water samples were detected. Bacillus cereus and Pseudomonas aeruginosa were detected in the water samples from humidifier tanks. The total bacterial counts in the pipe water and tank water samples from the 2nd humidifier were 1 800 cfu/mL and 600 cfu/mL, respectively.

    Conclusion The humidifier fever event is caused by the pathogenic microorganisms (mainly Bacillus cereus and Pseudomonas aeruginosa) in water from humidifier tanks and pipes.

     

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