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目的了解石嘴山市公共场所集中空调通风系统的污染状况,加强监督管理和提供清洗建议。方法根据西北地区冬夏季特点,2008-2010年连续3年在冬夏季对18家使用集中空调的商场、宾馆、超市、医院等公共场所进行采样检测。结果检测显示,公共场所集中空调系统送风口的细菌总数、真菌总数、MP10、风管积尘量均超标,冬季超标较夏季严重,夏季在冷凝水中检出嗜肺军团菌。结论建议每年冬夏季在使用集中空调前彻底清洗、消毒。
Objective To understand the pollution status of centralized air conditioning and ventilation system in public places in Shizuishan, strengthen supervision and management and provide suggestions for cleaning. Methods According to the characteristics of winter and summer in Northwest China, 18 samplings of 18 air-conditioned shopping centers, hotels, supermarkets and hospitals were sampled in winter and summer for three consecutive years from 2008 to 2010. The results showed that the total number of bacteria, fungi, MP10 and air ducts dust volume in the outlet of centralized air-conditioning system in public places exceeded the standard in summer, exceeding the standard in summer and severe in summer, and Legionella pneumophila in condensate water in summer. Conclusion It is suggested that thorough cleaning and disinfection should be done before using centralized air conditioners in winter and summer each year.