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为了解北京市朝阳区内公共场所集中空调系统卫生状况,于2011年随机抽取辖区内长期使用集中空调通风系统并定期清洗的20家公共场所(10家商场、10家星级宾馆),每个场所各选择1套集中空调通风系统,采集4个代表性断面,依据DB11/485—2007《公共场所集中空调通风系统卫生管理规范》进行送风管中细菌总数、真菌总数和积尘量的检测,并采集集中空调系统的冷却水、冷凝水各20份,检测冷却(凝)水中嗜肺军
In order to understand the health condition of the centralized air-conditioning system in public places in Chaoyang District, Beijing, 20 public places (10 shopping malls and 10 star hotels) were selected randomly in the area for long-term use of centralized air-conditioning and ventilation system in 2011. Each Place a set of centralized air conditioning and ventilation systems, collecting 4 representative sections, according to DB11 / 485-2007 “public places centralized air conditioning and ventilation system health management practices” to carry out the total number of bacteria in the supply duct, the total number of fungi and the amount of dust detection , And collected central air conditioning system of cooling water, condensate 20 each, detection of cooling (condensate) water lung Army