Factors influencing indoor PM2.5 concentration in rural houses of northern China

International Conference on Energy Engineering and Environmental Protection 2017

能源学;生态环境科学

Zhang, Xueyan^1 ; Chen, Bin^1

Laboratory of Building Environment and New Energy Resources, Dalian University of Technology, Dalian, Liaoning

116024, China^1

关键词: Air temperature;    Ground floor;    Northern China;    PM2.5 concentration;    Rate coefficients;    Traditional heating;    Traditional house;    Wind directions;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/121/3/032011/pdf
DOI  :  10.1088/1755-1315/121/3/032011

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

In traditional houses in rural areas of Northern China, most traditional heating systems, heated by mini-stove in the kitchen, usually take agricultural residues as fuels resources. Besides, burning cave under the ground-floor of a rural house is also widely used. The higher PM2.5 concentration is crisis for human health. In this study, PM2.5 concentration, temperature, relative humidity inside and outside the houses have been measured, moreover the factors impact on I/O rate coefficient has been discussed. The results show that the I/O rate coefficient in the evening is 2.5 times greater than the I/O rate coefficient in the daytime. I/O rate coefficient of PM2.5 concentration is positive related to air temperature difference between indoor and outdoor. In addition, the impact of outdoor wind speed and predominant wind direction on the PM2.5 emission has been studied.