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为了解广西壮族自治区公共场所集中空调通风系统卫生现状,于2015年在广西9个城市随机抽取71家公共场所(包括37家宾馆酒店、25家商场超市、9家休闲娱乐场所),每家场所通风系统各选择3个送风口检测β溶血性链球菌,并各选择2个有代表性采样断面在风管上、下、侧面各设1个采样点检测风管内表面微生物及积尘量,同时采集集中空调冷却塔水检测嗜肺军团菌。送风中β溶血性链球菌、风管内表面细菌总数、真菌总数、积尘量、冷却塔水中嗜肺军团菌均依据GB/T 18204.5—
In order to understand the status quo of centralized air conditioning and ventilation system in public places in Guangxi Zhuang Autonomous Region, 71 public places (including 37 hotel and hotel stores, 25 shopping malls and 9 leisure and entertainment venues) were randomly selected in 9 cities of Guangxi in 2015. Each site Ventilation system, the choice of three outlet detection of β-hemolytic streptococcus, and the choice of two representative sampling cross-section in the duct, the next one on each side of a sampling point to detect microorganisms and the amount of dust on the inner surface of the duct, at the same time Acquisition of central air-conditioning cooling tower water test Legionella pneumophila. Airborne β-hemolytic streptococcus, the total number of bacteria on the surface of the duct, the total number of fungi, the amount of dust, cooling Legionella pneumophila are based on GB / T 18204.5-