Hambraeus A, Bengtsson S, Laurell G
J Hyg (Lond). 1978 Apr;80(2):169-74. doi: 10.1017/s0022172400053511.
The redispersal factor for bacteria-carrying particles from a contaminated floor was determined after mopping, blowing and walking activity. Walking gave the highest redispersal factor, 3.5 X 10(-3) m-1, which was three times higher than for blowing and 17 times higher than for mopping. The mean die-away rate for the bacteria-carrying particles used was 1.9/h without ventilation and 14.3/h with ventilation. It was calculated that in the operating rooms less than 15% of the bacteria found in the air were redispersed floor bacteria.
在拖地、吹风和行走活动后，测定了来自受污染地面的携带细菌颗粒的再扩散因子。行走产生的再扩散因子最高，为3.5×10⁻³ m⁻¹，比吹风高3倍，比拖地高17倍。所使用的携带细菌颗粒的平均消亡率在无通风时为1.9/小时，有通风时为14.3/小时。据计算，在手术室中，空气中发现的细菌中不到15%是由地面再扩散而来的细菌。
