22家商场(超市)集中空调通风系统卫生状况调查

调查我省部分商场(超市)集中空调系统污染状况。随机检查了全省市级辖区内22家具有集中空调系统的商场(超市)的卫生管理情况,并对场所及管道通风空气质量进行了现场监测,对冷却塔冷却水样品中军团菌进行了检测分析,分别为54.5%和59.1%。建立了突发公共卫生事件应急预案和传染病报告制度。空气质量符合国家卫生标准要求(GB9670-1996),合格率为100%。对45个采样点集中空调通风系统送风口的空气质量进行卫生监测细菌总数(撞击法)监测和真菌总数(撞击法)监测的合格率分别为16.7%和66.7%;对35个集中空调冷却塔中的冷却水有10个冷却塔中的冷却水检出军团菌,军团菌检出率为28.6%。说明我省商场(超市)集中空调通风系统存在军团菌污染危险。

Objectives： To investigate the pollution situation of central air conditioning system in supermarkets in Zhejiang province. Methods： Sanitary control situation and air quality of 22 supermarkets were monitored during August and September in 2005. Results： The percentage of supermarkets with established public health emergency event project and communicable disease reporting system were 54.5% and 59.1%; air quality of 19 supermarkets complied with national hygienic standard （GB 9670 - 1996） ; Quality rate of general bacterial population and fungus population in 45 air samples were 16.7% and 66.7% ; Legionella were detected in 10 of 35 samples of the oooling tower water. Conclusion： The central air conditioning systems in supermarkets in Zhejiang province were in risk of Legionella pollution.