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RSC Adv

Title:		Factor analysis of the influence of environmental conditions on VOC emissions from medium density fibreboard and the correlation of the factors with fitting parameters
Author(s):		Shao H; Ren Y; Zhang Y; Wu C; Li W; Liu J;
Address:		"School of Chemistry and Biological Engineering, University of Science and Technology Beijing Beijing 100083 China liujm@ustb.edu.cn. School of Science, Beijing University of Civil Engineering and Architecture Beijing 100044 China"
Journal Title:		RSC Adv
Year:		2021
Volume:		20210730
Issue:		42
Page Number:		26151 - 26159
DOI:		10.1039/d1ra02164h
ISSN/ISBN:		2046-2069 (Electronic) 2046-2069 (Linking)
Abstract:		"Volatile organic compounds (VOCs) emitting from building materials are one of the main sources of indoor pollution. Environmental factors have obvious effects on VOC emissions from building materials. However, no unified conclusions have been achieved on the influence of relative humidity (RH) and air change rate (ACR), and there is little research on the correlations of RH and ACR with parameters in VOCs emission fitting models. Therefore, factor analysis was applied in this paper to study the influence of RH and ACR on VOCs emissions. Medium density fibreboard pannels with the coating of oil-based paint were applied at four ACR (0.5 h(-1), 1.0 h(-1), 2.0 h(-1), 3.0 h(-1)) and four RH (20%, 30%, 50%, 70%) conditions in 60 L environmental chambers. Tenax TA tubes were used to collect VOCs and thermal desorption-gas chromatography mass spectrometry was applied to determine the concentrations. The results show that RH influences the initial stage of VOCs emission and has a positive correlation with the emission concentrations. In the later emission stage, RH has no obvious influence on VOCs emissions, while the concentrations of VOCs are inversely proportional to ACR. The parameters in the single exponential model a (1) and b (1) have power-law or polynomial relationships with ACR and RH. ACR has negative correlations with a (1) and positive correlations with b (1), resulting in a negative influence on VOCs emissions, while RH has a complex influence on VOCs emissions. This study elucidated how RH and ACR impact VOCs emissions from oil-based paint coating medium density fibreboard and further influence human health exposure risks, which can then be used to improve indoor air quality"
Keywords:
Notes:		"PubMed-not-MEDLINEShao, Huiqi Ren, Yifan Zhang, Yan Wu, Chuandong Li, Wenhui Liu, Jiemin eng England 2022/04/29 RSC Adv. 2021 Jul 30; 11(42):26151-26159. doi: 10.1039/d1ra02164h. eCollection 2021 Jul 27"