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目的了解近五年潍坊市商场、超市及宾馆酒店等公共场所空调通风系统的卫生状况,与2004-2006年上次调查空调通风系统的卫生状况进行比较有何改善及不足。方法随机抽取上次调查的30家企业中还正常营业运行的20家公共场所单位的集中空调通风系统为调查样本。检测指标为集中空调通风系统风管内表面积尘量、细菌总数、真菌总数、送风中可吸入颗粒物、细菌总数、真菌总数。结果在不同年份不同场所仍有超标情况出现,超标项目主要集中在送风中的细菌总数、真菌总数。结论通过加强监督检测,定期清洗消毒等措施,近五年潍坊市公共场所的集中空调通风系统能达到较高的卫生标准,但仍有超标情况出现,探查其主要原因是部分公共场所单位的领导重视不够,只考虑清洗消毒成本,淡化空气卫生质量意识,清洗消毒达不到《公共场所集中空调通风系统卫生规范》要求的频次和标准。
Objective To understand the health status of air conditioning and ventilation systems in public places such as shopping malls, supermarkets and hotel hotels in Weifang in the past five years and to compare with the last survey conducted in 2004-2006 about the health condition of air conditioning and ventilation systems. Methods Central air conditioning and ventilation system of 20 public institutions and units operating normally in 30 enterprises in the last survey were randomly selected as the survey sample. Detection indicators for the central air conditioning and ventilation system, the amount of dust on the inner surface of the duct, the total number of bacteria, the total number of fungi, air supply inhalable particles, the total number of bacteria, the total number of fungi. The results in different locations in different locations are still over the standard situation, exceeding the total number of projects focused on the air supply in the total number of fungi. Conclusion The centralized air-conditioning and ventilation system in public places in Weifang City can achieve higher hygiene standards in the past five years by strengthening measures such as supervision and inspection, regular cleaning and disinfection, etc. However, there are still some cases of exceeding standards. The main reason for exploration is the leadership of some public places. Pay attention not enough, only consider the cost of cleaning and disinfection, desalination of air quality awareness of hygiene, cleaning and disinfection less than “public places central air-conditioning ventilation system health norms” required frequency and standards.