深圳市酒店集中空调通风系统污染状况

目的 了解深圳市酒店集中空调通风系统的卫生状况,更好地控制空调环境污染.方法 于2006年对深圳市22家三星级以上酒店集中空调通风系统的卫生管理状况进行调查,检测风管内表面积尘量、送风中可吸入颗粒物(PM10)、冷却水军团菌,采集风管内表面积尘和空调送风进行微生物检测.结果 22家酒店风管内表面积尘量、细菌总数和真菌总数的合格率分别为94.76%,95.71%,91.90%,送风中PM10、细菌总数和真菌总数的合格率分别为42.54%,94.76%,84.29%,冷却水军团菌的检出率为57.50%.结论 深圳市酒店集中空调通风系统存在一定程度的污染,加强空调系统的运行管理是提高空调环境卫生状况、保障人群健康的重要措施.

Investigation on Contamination Situation of Centralized Air Condition Systems in Hotels in Shenzhen City

Objective To know the contamination situation of the centralized air conditioning-ventilating systems in hotels in Shenzhen City, Guangzhou province and to ensure the indoor air quality when the centralized air conditioning-ventilating systems were at working. Methods 22 hotels were selected to determine the total count of bacteria and fungi in internal surface of pipes and air blow, the dust volume of internal surfaces of pipes, inhalable particulate matter(PM10) in air blow, and Legionellae in cooling tower water. Results The eligibility percent of dust volume, the total number of bacteria and fungi in internal surface was 94.76 %, 95.71% and 91.90 % respectively,the eligibility percent of PM10, the total count of bacteria and fungi in air blow was 42.54%, 94.76% and 84.29% respectively, and the detected rate of Legionellae was 57.50%. Conclusion The pollution in some degrees has been observed in the centralized air conditioning-ventilating systems in hotels of Shenzhen City, so it is considered as the important measure to improve indoor air quality and ensure people health to strengthen management of centralized air conditioning-ventilating systems in the usage.