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Factor analysis of the influence of environmental conditions on VOC emissions from medium density fibreboard and the correlation of the factors with fitting parameters

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 a...

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Autores principales: Shao, Huiqi, Ren, Yifan, Zhang, Yan, Wu, Chuandong, Li, Wenhui, Liu, Jiemin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9037345/
https://www.ncbi.nlm.nih.gov/pubmed/35479464
http://dx.doi.org/10.1039/d1ra02164h
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author Shao, Huiqi
Ren, Yifan
Zhang, Yan
Wu, Chuandong
Li, Wenhui
Liu, Jiemin
author_facet Shao, Huiqi
Ren, Yifan
Zhang, Yan
Wu, Chuandong
Li, Wenhui
Liu, Jiemin
author_sort Shao, Huiqi
collection PubMed
description 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.
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spelling pubmed-90373452022-04-26 Factor analysis of the influence of environmental conditions on VOC emissions from medium density fibreboard and the correlation of the factors with fitting parameters Shao, Huiqi Ren, Yifan Zhang, Yan Wu, Chuandong Li, Wenhui Liu, Jiemin RSC Adv Chemistry 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. The Royal Society of Chemistry 2021-07-30 /pmc/articles/PMC9037345/ /pubmed/35479464 http://dx.doi.org/10.1039/d1ra02164h Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Shao, Huiqi
Ren, Yifan
Zhang, Yan
Wu, Chuandong
Li, Wenhui
Liu, Jiemin
Factor analysis of the influence of environmental conditions on VOC emissions from medium density fibreboard and the correlation of the factors with fitting parameters
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
title_full Factor analysis of the influence of environmental conditions on VOC emissions from medium density fibreboard and the correlation of the factors with fitting parameters
title_fullStr Factor analysis of the influence of environmental conditions on VOC emissions from medium density fibreboard and the correlation of the factors with fitting parameters
title_full_unstemmed Factor analysis of the influence of environmental conditions on VOC emissions from medium density fibreboard and the correlation of the factors with fitting parameters
title_short Factor analysis of the influence of environmental conditions on VOC emissions from medium density fibreboard and the correlation of the factors with fitting parameters
title_sort factor analysis of the influence of environmental conditions on voc emissions from medium density fibreboard and the correlation of the factors with fitting parameters
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9037345/
https://www.ncbi.nlm.nih.gov/pubmed/35479464
http://dx.doi.org/10.1039/d1ra02164h
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