Yanagi U, Kaihara Noriko, Simazaki Dai, Bekki Kanae, Homma Yoshinori, Iba Chiemi, Asai Atsuto, Hayashi Motoya
School of Architecture, Kogakuin University, Tokyo 163-8677, Japan.
Department of Environmental Health, National Institute of Public Health, Wako 351-0197, Japan.
Microorganisms. 2023 Jul 22;11(7):1856. doi: 10.3390/microorganisms11071856.
In this study, we measured suspended particle concentrations during the screening of 4D movies (3 screens and 15 movies) and 2D movies (9 screens and 9 movies) in 3 movie theaters to obtain a more detailed understanding of the situation of suspended particle concentrations and adherent bacterial flora in 4D movie theaters, which have been introduced in increasing numbers in recent years. The adherent bacterial flora on the floor and mist outlet surfaces in the 4D movie theaters were collected and analyzed. During the movie showings, the concentrations of suspended particles in 4D movie theaters were significantly higher than those in 2D movie theaters ( < 0.001). A significant increase in suspended particle concentrations due to 4D movie effects was also observed. The results of the α-diversity and β-diversity analyses indicate that the bacterial flora on the surfaces of mist outlets in 4D movie theaters are similar. Moreover, there are many closely related species, and the bacterial flora are rich and contain rare bacterial species. Many of the bacterial genera that are dominant in 4D theaters are suited to aqueous environments, and bacteria in the water supply system may have an impact on the indoor environment.
在本研究中，我们在3家电影院对4D电影（3个影厅和15部影片）和2D电影（9个影厅和9部影片）放映期间测量了悬浮颗粒浓度，以更详细地了解近年来数量不断增加的4D电影院中悬浮颗粒浓度和附着细菌群落的情况。对4D电影院地面和喷雾口表面的附着细菌群落进行了采集和分析。在电影放映期间，4D电影院中悬浮颗粒的浓度显著高于2D电影院（<0.001）。还观察到由于4D电影效果导致悬浮颗粒浓度显著增加。α多样性和β多样性分析结果表明，4D电影院喷雾口表面的细菌群落相似。此外，有许多密切相关的物种，细菌群落丰富且包含稀有细菌物种。4D影厅中许多占主导地位的细菌属适合水生环境，供水系统中的细菌可能会对室内环境产生影响。
