Differing effects of four building materials on viable bacterial communities and VOCs

Indoor environmental quality is a paramount concern among architects. Exposure to VOCs and microorganisms impacts occupant health, yet the role of materials on these exposures remains poorly understood. In this study, we placed four material types in individual microcosms to test whether material ty...

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Main Authors:	Gwynne Á. Mhuireach, Leslie Dietz, Willem Griffiths, Patrick Finn Horve, Aurélie Laguerre, Dale Northcutt, Roo Vandegrift, Elliott Gall, Kevin Van Den Wymelenberg
Format:	Article
Language:	English
Published:	Elsevier 2021-07-01
Series:	Developments in the Built Environment
Subjects:	Cross-laminated timber Terpenes Microbiome 16S Built environment Sustainable materials
Online Access:	http://www.sciencedirect.com/science/article/pii/S2666165921000144

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spelling	doaj-8dd5c91975384ec8b01ec546cefc14932021-07-21T04:11:36ZengElsevierDevelopments in the Built Environment2666-16592021-07-017100055Differing effects of four building materials on viable bacterial communities and VOCsGwynne Á. Mhuireach0Leslie Dietz1Willem Griffiths2Patrick Finn Horve3Aurélie Laguerre4Dale Northcutt5Roo Vandegrift6Elliott Gall7Kevin Van Den Wymelenberg8Biology and the Built Environment Center, University of Oregon, Eugene, OR, 97403, USA; Corresponding author.Biology and the Built Environment Center, University of Oregon, Eugene, OR, 97403, USABiology and the Built Environment Center, University of Oregon, Eugene, OR, 97403, USABiology and the Built Environment Center, University of Oregon, Eugene, OR, 97403, USADepartment of Mechanical and Materials Engineering, Portland State University, Portland, OR, 97201, USAEnergy Studies in Buildings Laboratory, University of Oregon, Eugene, OR, 97403, USAInstitute for Ecology and Evolution, University of Oregon, Eugene, OR, 97403, USADepartment of Mechanical and Materials Engineering, Portland State University, Portland, OR, 97201, USABiology and the Built Environment Center, University of Oregon, Eugene, OR, 97403, USA; Energy Studies in Buildings Laboratory, University of Oregon, Eugene, OR, 97403, USA; Institute for Health and the Built Environment, University of Oregon, Portland, OR, 97209, USAIndoor environmental quality is a paramount concern among architects. Exposure to VOCs and microorganisms impacts occupant health, yet the role of materials on these exposures remains poorly understood. In this study, we placed four material types in individual microcosms to test whether material type influences bacterial community structure and VOC emission. We used culture-independent methods to characterize bacterial communities and TD-GC-MS to measure VOC emission. We found that viable bacterial communities had different patterns of abundance, diversity, and composition, in comparison with total (viable plus dead cells) bacterial communities. Examining viable bacteria only, Earth had the highest abundance and diversity, unique community composition, and overall negative VOC emission. Timber had the lowest bacterial abundance, composition similar to Gypsum and Concrete, and the highest VOC emission rate. Our research provides further evidence that architects’ decisions about building materials can influence chemical and microbial exposures indoors.http://www.sciencedirect.com/science/article/pii/S2666165921000144Cross-laminated timberTerpenesMicrobiome16SBuilt environmentSustainable materials
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Gwynne Á. Mhuireach Leslie Dietz Willem Griffiths Patrick Finn Horve Aurélie Laguerre Dale Northcutt Roo Vandegrift Elliott Gall Kevin Van Den Wymelenberg
spellingShingle	Gwynne Á. Mhuireach Leslie Dietz Willem Griffiths Patrick Finn Horve Aurélie Laguerre Dale Northcutt Roo Vandegrift Elliott Gall Kevin Van Den Wymelenberg Differing effects of four building materials on viable bacterial communities and VOCs Developments in the Built Environment Cross-laminated timber Terpenes Microbiome 16S Built environment Sustainable materials
author_facet	Gwynne Á. Mhuireach Leslie Dietz Willem Griffiths Patrick Finn Horve Aurélie Laguerre Dale Northcutt Roo Vandegrift Elliott Gall Kevin Van Den Wymelenberg
author_sort	Gwynne Á. Mhuireach
title	Differing effects of four building materials on viable bacterial communities and VOCs
title_short	Differing effects of four building materials on viable bacterial communities and VOCs
title_full	Differing effects of four building materials on viable bacterial communities and VOCs
title_fullStr	Differing effects of four building materials on viable bacterial communities and VOCs
title_full_unstemmed	Differing effects of four building materials on viable bacterial communities and VOCs
title_sort	differing effects of four building materials on viable bacterial communities and vocs
publisher	Elsevier
series	Developments in the Built Environment
issn	2666-1659
publishDate	2021-07-01
description	Indoor environmental quality is a paramount concern among architects. Exposure to VOCs and microorganisms impacts occupant health, yet the role of materials on these exposures remains poorly understood. In this study, we placed four material types in individual microcosms to test whether material type influences bacterial community structure and VOC emission. We used culture-independent methods to characterize bacterial communities and TD-GC-MS to measure VOC emission. We found that viable bacterial communities had different patterns of abundance, diversity, and composition, in comparison with total (viable plus dead cells) bacterial communities. Examining viable bacteria only, Earth had the highest abundance and diversity, unique community composition, and overall negative VOC emission. Timber had the lowest bacterial abundance, composition similar to Gypsum and Concrete, and the highest VOC emission rate. Our research provides further evidence that architects’ decisions about building materials can influence chemical and microbial exposures indoors.
topic	Cross-laminated timber Terpenes Microbiome 16S Built environment Sustainable materials
url	http://www.sciencedirect.com/science/article/pii/S2666165921000144
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Differing effects of four building materials on viable bacterial communities and VOCs

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