Risk of Damage Inside Wooden Cultural Heritage Sites Based on Temperature, Humidity, and Airborne Fungi in South Korea

The temperature, humidity, and indoor airborne fungi were evaluated at 24 wooden cultural heritage sites (WCHs) (5 from field surveys and 19 from previous studies). Surface contaminating fungi was present year-round in the indoor space of WCHs. Wood decay fungi float only in summer and fall when rel...

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Main Authors: Ik-Gyun Im, Gyu-Seong Han
Format: Article
Language:English
Published: North Carolina State University 2025-01-01
Series:BioResources
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Online Access:https://ojs.bioresources.com/index.php/BRJ/article/view/24145
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author Ik-Gyun Im
Gyu-Seong Han
author_facet Ik-Gyun Im
Gyu-Seong Han
author_sort Ik-Gyun Im
collection DOAJ
description The temperature, humidity, and indoor airborne fungi were evaluated at 24 wooden cultural heritage sites (WCHs) (5 from field surveys and 19 from previous studies). Surface contaminating fungi was present year-round in the indoor space of WCHs. Wood decay fungi float only in summer and fall when relative humidity is high. The internal conditions of WCHs, such as an average temperature of 20 °C and a relative humidity of 75% or more, persisted for at least 4 weeks and up to 8 weeks of the year. Accordingly, the growth of surface contaminating fungi and wood decay fungi on wood and Hanji (Korea paper) surfaces was evaluated for 12 weeks. There was no growth at relative humidity of 95% or less. The maximum average relative humidity of 24 WCHs nationwide was 90% or less, which makes it impossible for most wood decay fungi to germinate and grow, and the period when it remained above 95% was very short. Therefore, the indoor space of WCHs is unlikely to be damaged by surface contaminating fungi and wood decay fungi in all periods of the year, as the environment suitable for germination and growth is not created for a long period.
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publisher North Carolina State University
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spelling doaj-art-92144381c84b4f0c829740720e25d48e2025-02-10T23:56:27ZengNorth Carolina State UniversityBioResources1930-21262025-01-01201183818592392Risk of Damage Inside Wooden Cultural Heritage Sites Based on Temperature, Humidity, and Airborne Fungi in South KoreaIk-Gyun Im0https://orcid.org/0000-0003-2642-7996Gyu-Seong Han1https://orcid.org/0000-0003-3835-2063Conservation Laboratory, Curatorial Affairs Office, Gyeongju National Museum, Gyeongju 38171, Korea; Department of Cultural Heritage Science, Chungbuk National University, Cheongju, 28644, KoreaDepartment of Cultural Heritage Science, Chungbuk National University, Cheongju, 28644, Korea; Department of Wood and Paper Science, Chungbuk National University, Cheongju, 28644, KoreaThe temperature, humidity, and indoor airborne fungi were evaluated at 24 wooden cultural heritage sites (WCHs) (5 from field surveys and 19 from previous studies). Surface contaminating fungi was present year-round in the indoor space of WCHs. Wood decay fungi float only in summer and fall when relative humidity is high. The internal conditions of WCHs, such as an average temperature of 20 °C and a relative humidity of 75% or more, persisted for at least 4 weeks and up to 8 weeks of the year. Accordingly, the growth of surface contaminating fungi and wood decay fungi on wood and Hanji (Korea paper) surfaces was evaluated for 12 weeks. There was no growth at relative humidity of 95% or less. The maximum average relative humidity of 24 WCHs nationwide was 90% or less, which makes it impossible for most wood decay fungi to germinate and grow, and the period when it remained above 95% was very short. Therefore, the indoor space of WCHs is unlikely to be damaged by surface contaminating fungi and wood decay fungi in all periods of the year, as the environment suitable for germination and growth is not created for a long period.https://ojs.bioresources.com/index.php/BRJ/article/view/24145conservation environmentwchswooden cultural propertiessuspended fungiwood decay fungifungus
spellingShingle Ik-Gyun Im
Gyu-Seong Han
Risk of Damage Inside Wooden Cultural Heritage Sites Based on Temperature, Humidity, and Airborne Fungi in South Korea
BioResources
conservation environment
wchs
wooden cultural properties
suspended fungi
wood decay fungi
fungus
title Risk of Damage Inside Wooden Cultural Heritage Sites Based on Temperature, Humidity, and Airborne Fungi in South Korea
title_full Risk of Damage Inside Wooden Cultural Heritage Sites Based on Temperature, Humidity, and Airborne Fungi in South Korea
title_fullStr Risk of Damage Inside Wooden Cultural Heritage Sites Based on Temperature, Humidity, and Airborne Fungi in South Korea
title_full_unstemmed Risk of Damage Inside Wooden Cultural Heritage Sites Based on Temperature, Humidity, and Airborne Fungi in South Korea
title_short Risk of Damage Inside Wooden Cultural Heritage Sites Based on Temperature, Humidity, and Airborne Fungi in South Korea
title_sort risk of damage inside wooden cultural heritage sites based on temperature humidity and airborne fungi in south korea
topic conservation environment
wchs
wooden cultural properties
suspended fungi
wood decay fungi
fungus
url https://ojs.bioresources.com/index.php/BRJ/article/view/24145
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