著者

正田 浩三 垣鍔 直

出版者

日本建築学会

雑誌

日本建築学会環境系論文集 (ISSN:13480685)

巻号頁・発行日

vol.77, no.677, pp.615-621, 2012-07-30 (Released:2012-07-31)

参考文献数

21

被引用文献数

4

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In the present study, glossiness and contamination levels measured with the device to detect ATP values on the surfaces touched by washroom user's hands were measured while order levels in the washroom were subjectively evaluated. The results showed that the floor surface became dirty and order was smelled as number of washroom users increased. At the same time, number of bacteria (NB) on the surfaces was also measured. Both ATP value and NB on the doorknob and the water tab increased as number of washroom users increased simultaneously. This relationship was confirmed experimentally on the door knob touched by hands that were contaminated at the same level. The effect of elimination of contamination materials on the doorknob was then tested with dry or wet cleaning materials, e.g., towel and micro cloth etc. As a result, both ATP value and NB decreased more effectively by wet materials than dry ones.