Flushing newly built residential buildings with outdoor air for reducing formaldehyde and VOCs concentrations

New building construction is often counted as a source of indoor air pollution because of formaldehyde and volatile organic compounds (VOCs) emitted from new building materials, such as furnishings, wood, and finishings. The high levels of formaldehyde and VOCs in the early stage of new buildings co...

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Main Authors: Kiyong Lee, Sang-In Park, J.S. Park
Format: Article
Language:English
Published: Taylor & Francis Group 2023-10-01
Series:Journal of Asian Architecture and Building Engineering
Subjects:
Online Access:http://dx.doi.org/10.1080/13467581.2023.2270025
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author Kiyong Lee
Sang-In Park
J.S. Park
author_facet Kiyong Lee
Sang-In Park
J.S. Park
author_sort Kiyong Lee
collection DOAJ
description New building construction is often counted as a source of indoor air pollution because of formaldehyde and volatile organic compounds (VOCs) emitted from new building materials, such as furnishings, wood, and finishings. The high levels of formaldehyde and VOCs in the early stage of new buildings could be linked to the negative health effects on occupants. The aim of this study is to examine the impacts of flush-out air flow rate and flush period in reducing formaldehyde and VOCs produced by building materials or furnishing of newly built residential buildings. Field measurements were conducted from September 2016 to August 2018 in nineteen newly built apartments to verify the effectiveness of the flush-out procedure. The field measurements showed that after the flush-out, the indoor concentrations of formaldehyde and VOCs in the newly built samples significantly decreased. The indoor concentrations of formaldehyde and TVOCs were reduced to about 61% and 41% of the initial concentration when the samples were flushed at 0.7ACH for nine days. The results of this study showed that the flush-out for a short term of below two weeks was more effective reducing the emission potential of VOCs than of formaldehyde. When the samples were flushed for more than seven days, the air change rates of the flushing did not significantly influence the reduction of indoor pollutants.
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spelling doaj.art-df9c065ff4bf466981bcfd45578ea78a2023-10-24T10:30:20ZengTaylor & Francis GroupJournal of Asian Architecture and Building Engineering1347-28522023-10-010011210.1080/13467581.2023.22700252270025Flushing newly built residential buildings with outdoor air for reducing formaldehyde and VOCs concentrationsKiyong Lee0Sang-In Park1J.S. Park2Graduate School of Hanyang UniversityTokyo Institute of TechnologyHanyang UniversityNew building construction is often counted as a source of indoor air pollution because of formaldehyde and volatile organic compounds (VOCs) emitted from new building materials, such as furnishings, wood, and finishings. The high levels of formaldehyde and VOCs in the early stage of new buildings could be linked to the negative health effects on occupants. The aim of this study is to examine the impacts of flush-out air flow rate and flush period in reducing formaldehyde and VOCs produced by building materials or furnishing of newly built residential buildings. Field measurements were conducted from September 2016 to August 2018 in nineteen newly built apartments to verify the effectiveness of the flush-out procedure. The field measurements showed that after the flush-out, the indoor concentrations of formaldehyde and VOCs in the newly built samples significantly decreased. The indoor concentrations of formaldehyde and TVOCs were reduced to about 61% and 41% of the initial concentration when the samples were flushed at 0.7ACH for nine days. The results of this study showed that the flush-out for a short term of below two weeks was more effective reducing the emission potential of VOCs than of formaldehyde. When the samples were flushed for more than seven days, the air change rates of the flushing did not significantly influence the reduction of indoor pollutants.http://dx.doi.org/10.1080/13467581.2023.2270025newly builtresidential buildingflushingformaldehydevocs
spellingShingle Kiyong Lee
Sang-In Park
J.S. Park
Flushing newly built residential buildings with outdoor air for reducing formaldehyde and VOCs concentrations
Journal of Asian Architecture and Building Engineering
newly built
residential building
flushing
formaldehyde
vocs
title Flushing newly built residential buildings with outdoor air for reducing formaldehyde and VOCs concentrations
title_full Flushing newly built residential buildings with outdoor air for reducing formaldehyde and VOCs concentrations
title_fullStr Flushing newly built residential buildings with outdoor air for reducing formaldehyde and VOCs concentrations
title_full_unstemmed Flushing newly built residential buildings with outdoor air for reducing formaldehyde and VOCs concentrations
title_short Flushing newly built residential buildings with outdoor air for reducing formaldehyde and VOCs concentrations
title_sort flushing newly built residential buildings with outdoor air for reducing formaldehyde and vocs concentrations
topic newly built
residential building
flushing
formaldehyde
vocs
url http://dx.doi.org/10.1080/13467581.2023.2270025
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