Basic Study for officially evaluating Indoor Air Quality in Storage for Cultural Properties

由于日本法律没有限制博物馆内空气污染物的浓度，因此没有限制对文物的损害，因此研究人员试图解决对文物存放室内空气质量的官方评估方法。本研究针对物理、化学、生物等环境因素分为三个部分：评估测量方法的确定、博物馆案例研究、对文物的澄清效果。防止身体压力，比如形状的改变。等。参照官方确定的卫生测量方法，提出了测量温度和相对湿度空间分布的初步方案。测量了每种材料相对于空间相对湿度的水分含量，但所有测量尚未完成。为了减少污染物的化学变化，进行了定性和定量测量，以了解博物馆中真正存在的污染物。对于新建的博物馆，室内空气污染物选择了五种化合物，室外空气污染物选择了氮氧化物、硫氧化物和氯化物：氨、甲醛、乙醛、甲酸和乙酸。还制定了测量每种污染物浓度的暂定计划。在高浓度、高湿、高温等加速变质条件下，研究了这些污染物对几种材料的化学效应。在高浓度甲醛/高含水率乙酸的作用下，铅/铜等颜料的颜色和化学形态发生了变化，提出了胶合板和木材等建筑材料污染的检测方法。为了防止生物入侵，对悬浮在空气中的孢子与地面上收集的掉落孢子进行了生长能力测试。结果表明，测定粉尘浓度是评价真菌侵袭危险性较好的方法。少

The researchers tried to settle the official evaluation methods for indoor air quality in storage for cultural objects because there is no limitation in Japan's law on air pollutants' concentration in museums that prevents them from damage. This research was divided into three parts against to environmental factors like physical, chemical, and biological deterioration : settlement of measuring method for evaluation, case study in museums, clarifying effect to the cultural objects. For preventing physical stress like alteration in shape. etc.. A tentative plan for measuring the spatial distribution of temperature and of relative humidity was settled referring to the officially fixed method for sanitation. Moisture content of each material against spatial relative humidity was measured but all measurements have yet been completed. For diminishing chemical alteration by pollutants Qualitative and quantitative measurements were done to know what pollutants really exist in museums. For newl … More y-built museums, five compounds were selected as indoor air pollutants along with nitrogen oxides, sulfur oxides and chloride compounds as outdoor air pollutants : ammonia, formaldehyde, acetaldehyde, formic acid and acetic acid. Tentative plans are also settled to measure the concentration of each pollutant. Chemical effects of these pollutants to several materials were examined under condition of accelerating deterioration : high concentration, high humidity and high temperature. Under high concentration of formaldehyde/acetic acid with high moisture content, some pigments including lead/copper changed their color and chemical forms, Test method for estimating contamination from building material like plywood and woods were presented. For keening away from biological invasion Growth ability of spores suspended in air were tested against to fallen spores collected on the floor. The result showed it is the better way to measure dust concentration than to count the spores for evaluation of danger of fungi attack. Less