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目的对泰安市医疗机构集中空调通风系统卫生状况进行评价,为有效预防和控制院内呼吸道疾病的传播和流行提供依据。方法 2013年1—12月对8家医疗机构的集中空调通风系统中可吸入颗粒物(PM10)、细菌总数、真菌总数、β-溶血性链球菌等项目进行检测,并进行卫生学评价。结果候诊大厅中检查项目风管中积尘量和积尘菌落总数合格率最低,分别为75.00%、78.13%;送风中溶血链球菌合格率最高(100.00%);候诊大厅总合格率为86.14%。输液室各个检测项目的合格率均在90.00%以上,送风中真菌总数、送风中溶血链球菌、PM10合格率均为100.00%,总合格率为95.45%。普通病房积尘菌落总数合格率最低,为80.00%,总合格率为87.36%。治疗室的总合格率为98.73%。在各个检测项目中积尘菌落总数的总合格率最低为83.39%,送风中溶血链球菌合格率最高为100.00%。8家医疗机构集中空调通风系统的总合格率为89.63%。结论医疗机构集中空调通风系统应按照运转周期进行卫生学评价,预防院内感染的发生。
Objective To evaluate the health status of central air conditioning and ventilation system in medical institutions in Tai’an city and provide the basis for effective prevention and control of the spread and epidemic of respiratory diseases in the hospital. Methods From January to December 2013, inhalable particulate matter (PM10), total number of bacteria, total fungi, β-hemolytic streptococcus and other items in 8 central air-conditioning and ventilation systems of 8 medical institutions were detected and evaluated hygienically. The results of the waiting hall inspection items duct dust volume and the total number of dust colonies the lowest pass rate, respectively, 75.00%, 78.13%; airborne hemolytic streptococcus pass rate was the highest (100.00%); waiting hall with a total pass rate of 86.14 %. Infusion room of the test items of the pass rate of 90.00% or more, the total number of fungi in the air supply, hemolytic streptococcus, PM10 pass rate was 100.00%, with a total pass rate of 95.45%. The total qualified rate of dust accumulation in ordinary ward was the lowest, which was 80.00%. The total qualified rate was 87.36%. The total pass rate of the treatment room was 98.73%. In all testing items, the total qualified rate of the total amount of dust colonies was 83.39%, the highest passing rate of hemolytic streptococcus in the air was 100.00%. The total qualified rate of the centralized air conditioning and ventilation system in the eight medical institutions was 89.63%. Conclusion The central air-conditioning and ventilation system of medical institutions should conduct hygiene evaluation according to the operation cycle to prevent the occurrence of nosocomial infections.