全空调医院中的空气传播感染。I. 病房间的空气转移
Airborne infection in a fully air-conditioned hospital. I. Air transfer between rooms.
作者信息
Foord N, Lidwell O M
出版信息
J Hyg (Lond). 1975 Aug;75(1):15-30. doi: 10.1017/s0022172400047033.
Abstract
Measurements have been made of the extent of air exchange between patient rooms in a fully air-conditioned hospital using a tracer-gas method. When the rooms were ventilated at about six air changes per hour, had an excess airflow through the doorway of about 0.1 m.3/sec. and the temperature difference between rooms and corridor was less than 0.5 degrees C., concentrations of the tracer in rooms close to that in which it was being liberated were 1000-fold less than that in the source room. This ratio fell to about 200-fold in the absence of any excess airflow through the doorways. Considerable dilution took place along the corridors so that the concentration fell by around 10-fold for every 10 m. of corridor.
摘要
已采用示踪气体法对一家全空调医院病房之间的空气交换程度进行了测量。当病房每小时换气约6次、门口有大约0.1立方米/秒的多余气流且病房与走廊之间的温差小于0.5摄氏度时，靠近示踪气体释放房间的其他病房中示踪气体的浓度比源房间中的浓度低1000倍。在门口没有任何多余气流的情况下，该比例降至约200倍。沿走廊发生了相当程度的稀释，以至于每10米走廊浓度下降约10倍。
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4
Airborne infection in a fully air-conditioned hospital. II. Transfer of airborne particles between rooms resulting from the movement of air from one room to another.全空调医院中的空气传播感染。II. 因空气从一个房间流向另一个房间导致的空气传播颗粒在房间间的转移。
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