Analysis and removal of air pollutants from scorched wood

0525444 - ÚMCH 2021 RIV US eng J - Journal Article
Trhlíková, Olga - Kanizsová, Lívia - Horský, Jiří - Šmíra, P. - Nasswettrová, A. - Šlouf, Miroslav - Dušková-Smrčková, Miroslava
Analysis and removal of air pollutants from scorched wood.
Journal of Wood Chemistry and Technology. Roč. 40, č. 4 (2020), s. 248-257. ISSN 0277-3813. E-ISSN 1532-2319
R&D Projects: GA ČR(CZ) GA17-00089S; GA MŠMT(CZ) LO1507
Grant - others:OPPK(XE) CZ.2.16/3.1.00/24504
Institutional support: RVO:61389013
Keywords : scorched wood * volatile air pollutants * headspace gas chromatography - mass spectrometry
OECD category: Polymer science
Impact factor: 2.630, year: 2020
Method of publishing: Limited access
https://www.tandfonline.com/doi/full/10.1080/02773813.2020.1758725

In the after-fire restoration of the buildings belonging to the culture heritage, the use of salvaged scorched wood elements is desirable but often leading to the long-term malodorous, irritating, or unhealthy emissions. To reduce them while preserving the authenticity as much as possible, the micro-abrasive cleaning method was tested on samples from a burned-down historical wooden building. Volatile compounds in the headspace of the samples were analyzed by gas chromatography coupled with mass spectrometry. The chromatograms from above the scorched wood before cleaning showed a number of volatile products, mostly typical for wood degradation. After the removal of ca 2 mm layer of the scorched wood, the profile of volatiles was almost identical to that above the intact sample, and as reported for neat wood. The results of our study demonstrate how the authenticity of wood elements in buildings restored after fire can be increased without compromising the air quality.
Permanent Link: http://hdl.handle.net/11104/0309816