李家瑜, 王正芸, 刘德秀. 手术室紫外线消毒效果及臭氧浓度的变化[J]. 环境与职业医学, 2014, 31(6): 459-461. DOI: 10.13213/j.cnki.jeom.2014.0106
引用本文: 李家瑜, 王正芸, 刘德秀. 手术室紫外线消毒效果及臭氧浓度的变化[J]. 环境与职业医学, 2014, 31(6): 459-461. DOI: 10.13213/j.cnki.jeom.2014.0106
LI Jia-yu , WANG Zheng-yun , LIU De-xiu . Disinfection Effects and Ozone Concentration Changes in Surgery Operating Rooms After Varied Ultraviolet Protocols[J]. Journal of Environmental and Occupational Medicine, 2014, 31(6): 459-461. DOI: 10.13213/j.cnki.jeom.2014.0106
Citation: LI Jia-yu , WANG Zheng-yun , LIU De-xiu . Disinfection Effects and Ozone Concentration Changes in Surgery Operating Rooms After Varied Ultraviolet Protocols[J]. Journal of Environmental and Occupational Medicine, 2014, 31(6): 459-461. DOI: 10.13213/j.cnki.jeom.2014.0106

手术室紫外线消毒效果及臭氧浓度的变化

Disinfection Effects and Ozone Concentration Changes in Surgery Operating Rooms After Varied Ultraviolet Protocols

  • 摘要: 目的 采用不同功率紫外灯和不同消毒时间对医院手术室空气进行消毒,观察其消毒效果,为医院手术室选择最优消毒方式提供参考。

    方法 选择某医院位于同楼层、同大小及同朝向两间手术室,分别采用30 W和40 W紫外灯消毒10, 20, 30, 40, 50, 60 min,观察不同功率和不同消毒时间后手术室空气中的细菌菌落总数、杀菌率及臭氧浓度的变化。

    结果 使用30 W紫外灯辐射10 min后手术室空气中细菌菌落总数为4 cfu/m3,杀菌率为95.3%, 40 W为95.6%;两组在消毒30 min后杀菌率均为100.0%。手术室空气中臭氧含量逐渐上升,消毒20 min以后40 W高于30 W组,差异有统计学意义(P<0.05),消毒30 min后手术室空气中臭氧含量超过0.3 mg/3

    结论 手术室30 W和40 W紫外灯消毒效果相同,但40 W消毒产生更多臭氧。紫外线灯最佳消毒时间为30 min。

     

    Abstract: Objective To evaluate the disinfection effects of ultraviolet (UV) lamps with different powers and for different durations in surgery operating rooms, and to provide reference for disinfection optimization.

    Methods Two surgery operating rooms with same size, same orientation, and at the same floor of a hospital were selected. UV lamps of 30 W and 40 W were placed in the two rooms respectively. The changes in total bacterial count, sterilization rate, and ozone concentration in the air of the operating rooms were recorded at various time points of 10, 20, 30, 40, 50, and 60minutes.

    Results After using the 30W UV lamp radiation for 10min, the air total bacterial count were 4 cfu/m3, and the sterilization rate was 95.3%. After using the 40 W UV lamp radiation for 10 min, the sterilization rate was 95.6%. After 30min, the sterilization rates were both 100.0% for the two rooms. The air ozone concentration in the surgery operating room using a 40 W lamp for 20 minutes was statistically higher than that in the room using a 30 W lamp (P<0.05). After 30 min, the ozone concentrations in the air of both rooms exceeded 0.3 mg/3.

    Conclusion The 30 W and the 40 W UV lamps show similar disinfection effects, but the 40 W lamp produces more ozone. A preferable UV light sterilization time is 30min.

     

/

返回文章
返回