Survey on Fungous Contamination State in Museum and study on favorable disinfection method for preservation of environment

本文从以下五个方面进行了研究：（1）博物馆真菌污染监测方法的研究;（2）通过气流数值模拟控制环境条件;（3）少用化学方法抑制真菌生长;（4）博物馆真菌污染的实际调查;（5）收集化学杀菌剂对人体健康影响的资料，对三种便携式空气真菌采样器进行了重复性、测量残差、准确性和可靠性的研究，分别并对三种方法进行了相关分析。三种采样器在每种抽吸量下均不稳定，在较小抽吸量下均趋于不稳定。根据真菌污染程度选择合适的培养基，MA培养基适合评价古墓等靠近室外空间的真菌污染程度，PDA培养基适合评价空调条件下博物馆的真菌污染程度，培养基表面含水量对真菌生长有很大影响。为了抑制真菌的生长，尝试将亲水性树脂施加到土壤中以保持合适的表面含水量。用红外反射法测定了土壤表层的含水量，发现土壤表层的含水量仍然很高，但水分在表层的分布范围较小。最后，通过对博物馆真菌污染的实际调查，发现博物馆真菌污染水平仍低于住宅，说明亲水性树脂有利于避免土壤表面的露点。据认为，测量空气传播的真菌是有效的，以找到真菌在有关房间的实际增长。

Study was done from five points of view as follows ; (1) study on monitoring method of fungous contamination in museums, (2) controlling environmental conditions by numerical simulation of air current, (3) less-chemical method for suppression of fungous growth, (4) actual survey of fungous contamination in museums, (5) collecting information of the effects by chemical biocides to human health.Three portable samplers for counting air-borne fungi were studied in order to know repetitively reproducibility, residual of measuring, accuracy and reliability, respectively. Furthermore, correlation coefficient between three methods was obtained. All three samplers were not always stable in every suction volume and they were inclined to unstable in smaller suction volume. Suitable cultivation media should be selected considering the contamination level by fungi and it was found that MA medium was good for evaluate the fungous contamination level in the space close to outdoor like tumulus, and PDA medium was good in order to know the fungous contamination level in museums under air-conditioning.Under this study, it was cleared that fungous growth were strongly affected by water content of the surface of media. In order to suppress the fungous growth, hydrophilic resins were tried to apply to soil for maintain the suitable water content on surface. Water content of soil surface was measured by infrared reflection method then it was found that water content was still high, but that the distribution of water content was small on the surface. Finally, it was thought that hydrophilic resin was good for not making dew point on the soil surface.Actual investigation about fungous contamination in museums was performed and cleared that contamination in museums were still lower level than in residence. It was thought that measuring air-borne fungi was effective to find the actual growth of fungi in the room concerned.