Particulate Matter Mass Concentration in Residential Prefabricated Buildings Related to Temperature and Moisture

World Multidisciplinary Civil Engineering-Architecture-Urban Planning Symposium - WMCAUS

土木建筑工程

Kraus, Michal^1 ; Šenitková, Ingrid Juhásová^1

Institute of Technology and Business in eské Budjovice, Department of Civil Engineering, Okruní 517/10, eské Budjovice

370 01, Czech Republic^1

关键词: Building material surfaces;    Environmental audit;    Global temperatures;    Indoor temperature;    Physical parameters;    Relative air humidities;    Residential building;    Temperature differences;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/245/4/042068/pdf
DOI  :  10.1088/1757-899X/245/4/042068

学科分类：土木及结构工程学

来源: IOP

【 摘 要 】

Building environmental audit and the assessment of indoor air quality (IAQ) in typical residential buildings is necessary process to ensure users' health and well-being. The paper deals with the concentrations on indoor dust particles (PM10) in the context of hygrothermal microclimate in indoor environment. The indoor temperature, relative humidity and air movement are basic significant factors determining the PM10concentration [μg/m3]. The experimental measurements in this contribution represent the impact of indoor physical parameters on the concentration of particulate matter mass concentration. The occurrence of dust particles is typical for the almost two-thirds of interiors of the buildings. Other parameters indoor environment, such as air change rate, volume of the room, roughness and porosity of the building material surfaces, static electricity, light ions and others, were set constant and they are not taken into account in this study. The mass concentration of PM10is measured during summer season in apartment of residential prefabricated building. The values of global temperature [C] and relative humidity of indoor air [%] are also monitored. The quantity of particulate mass matter is determined gravimetrically by weighing according to CSN EN 12 341 (2014). The obtained results show that the temperature difference of the internal environment does not have a significant effect on the concentration PM10. Vice versa, the difference of relative humidity exhibits a difference of the concentration of dust particles. Higher levels of indoor particulates are observed for low values of relative humidity. The decreasing of relative air humidity about 10% caused 10g/m3of PM10concentration increasing. The hygienic limit value of PM10concentration is not exceeded at any point of experimental measurement.