医院重症监护病房细菌气溶胶浓度水平影响因素研究  

Influencing factors of bacterial aerosol concentration level in hospital intensive care units

作　　者：倪骏[1] Ni Jun(Shanghai Municipal Center for Disease Control&Prevention,Shanghai)

机构地区：[1]上海市疾病预防控制中心,上海

出　　处：《暖通空调》2022年第5期158-162,67,共6页Heating Ventilating & Air Conditioning

基　　金：上海市第五轮公共卫生三年行动计划“公共卫生综合监管能力提升”项目(编号:GWV-6)。

摘　　要：为研究影响医院重症监护病房(ICU)内细菌气溶胶浓度水平的影响因素,对若干医院ICU内的细菌气溶胶浓度和粒子数进行了监测和分析。结果表明:在实际使用过程中,设置净化器的万级净化室内环境中细菌气溶胶浓度水平在万级和十万级净化要求之间;无论是否设置净化器,有人员活动组的细菌气溶胶浓度均高于无人员活动组,在有人员活动情况下,净化器可快速有效降低细菌气溶胶浓度水平;有人员活动组的细菌中值直径大于无人员活动组,有人员活动会增加大颗粒物数量;ICU环境中细菌气溶胶浓度与粒径≥0.5μm粒子数、粒径≥5μm粒子数之间均有显著关联性。In order to study the environmental factors that affect the concentration of bacterial aerosol in the hospital intensive care unit(ICU),the concentration and particle number of the bacterial aerosol in the ICUs of several hospitals are monitored and analysed.The results show that the bacterial aerosol concentration level in the 10000-level purification indoor environment of the purifier during actual use is between the 10000-level and 100000-level purification requirements.Regardless of whether a purifier is installed,the concentration of bacterial aerosol in the group with personnel activities is higher than that without personnel activities.In the case of personnel activities,the purifier can quickly and effectively reduce the concentration level of bacterial aerosol.The median diameter of bacteria in the group with personnel activities is larger than that in the group without personnel activities,and the activities of personnel will increase large particles.There is a significant correlation between the bacterial aerosol concentration and the number of particles≥0.5μm and≥5μm in the ICU environment.

关 键 词：医院 重症监护病房(ICU) 净化器 细菌气溶胶 浓度 粒子数 人员活动 

分 类 号：TU834.8[建筑科学—供热、供燃气、通风及空调工程] R197.323[医药卫生—卫生事业管理]