江苏省旅店业集中空调通风系统卫生调查

目的了解江苏省旅店业集中空调通风系统卫生状况。方法抽查集中空调通风系统未经清洗并正常运转的宾馆6家，依据《公共场所集中空调通风系统卫生规范》进行检测。检测指标：风管内表面积尘量、细菌总数、真菌总数、冷却水、冷凝水中嗜肺军团菌；送风中PM。结果风管内表面积尘1家超标，最大超标率4．1倍；细菌总数3家超标，最大超标101倍，最小超标0．2倍；真菌总数4家超标，最大超标率12倍，最小超标0．3倍。送风中PM10合格率为86％。嗜肺军团菌：冷却水中嗜肺军团菌3家不合格，冷凝水中嗜肺军团菌2家不合格。结论宾馆、饭店集中空调通风系统污染较为严重，必须加强对公共场所集中空调通风系统的清洗和消毒工作，同时必须强化监督管理。

Sanitary Investigation of Central Air Conditioning-Ventilating System in the Hotels of Jiangsu

Objective To study the sanitary status of central air conditioning - ventilating system in hotels of Jiangsu. Methods The central ventilation systems of 6 hotels which worked normally and have not been cleaned were selected to detect ,according to Sanitary Criterion of the Central Ventilation Systems in Public Place： Results Value of dust inside surface of vent - pipe of 1 sample exceeded standards, which the maximum was 4. 1 times the standards, bacterium values of 3 samples exceeded the standards which the maximum was 101 times and the minimum was 0. 2 times the standards. Epiphyte counts of 4 samples exceeded standards, which the maximum was 12 times and the minimum was 0. 3 times . The qualified rate of PM10 was 86%. Legionella pneumophila of 3 samples in cooling water and 2 samples in freezing water exceeded the standards. Conclusion Pollution degree of central air conditioning - ventilating systems is severe, disinfection and surveillance must be strengthened to central air conditioning -ventilating system.