Abstract 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.

中文翻译：

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焦木中空气污染物的分析与去除

摘要 在文化遗产建筑的火灾后修复中，使用回收的焦木构件是可取的，但往往会导致长期的恶臭、刺激性或不健康的排放。为了在尽可能保留真实性的同时减少它们，我们在一座被烧毁的历史木建筑的样本上测试了微研磨清洁方法。样品顶部空间中的挥发性化合物通过气相色谱与质谱联用进行分析。清洁前烧焦的木材上方的色谱图显示了许多挥发性产物，主要是木材降解的典型特征。在去除约 2 毫米的焦木层后，挥发物的分布与完整样品上方的几乎相同，正如报告的纯木材一样。