Department of Environmental Engineering, Seoul National University of Science and Technology, Seoul 01811, Korea.
Int J Environ Res Public Health. 2022 Oct 2;19(19):12601. doi: 10.3390/ijerph191912601.
Currently, little is known about the occurrences of fungi-derived microbial volatile organic compounds (mVOCs) in various indoor materials and their detection in residential environments, despite mVOCs being linked to several acute health effects. We identified various mVOCs emitted from fungi grown on PVC wallpaper, silicone rubber, and malt extract agar. We also investigated mVOCs temporal emission and whether fungi-derived VOCs concentration can be used to estimate fungal concentration in the air using active and passive air sampling methods. Among the three fungal growth media included in this study, silicone rubber produced the most variety of mVOCs: 106 compounds (from ), 35 compounds (from ), and 85 compounds (from ). We also found the emission patterns of eight chemical classes (i.e., aromatics, ethers, aliphatics, alcohols, ketones, aldehydes, chlorides, and nitrides) from the three different fungi. From the results of our field experiments in 11 residential environments, passive air samplers led to higher correlations coefficients (0.08 to 0.86) between mVOCs' air concentrations and airborne fungal concentrations, compared with active air samplers, which showed negative correlation coefficients (-0.99 to -0.02) for most compounds. This study elucidated the occurrence and temporal emission patterns of fungal VOCs in residential environments.
目前，尽管微生物挥发性有机化合物（mVOC）与多种急性健康影响有关，但人们对其在各种室内材料中的存在情况以及在住宅环境中的检测方法知之甚少。我们从聚氯乙烯壁纸、硅橡胶和麦芽提取物琼脂上生长的真菌中鉴定出了各种 mVOC。我们还研究了 mVOC 的时间排放情况，以及是否可以使用主动和被动空气采样方法，通过真菌衍生 VOC 的浓度来估计空气中的真菌浓度。在本研究中包含的三种真菌生长介质中，硅橡胶产生的 mVOC 种类最多：106 种化合物（来自 ）、35 种化合物（来自 ）和 85 种化合物（来自 ）。我们还发现了来自三种不同真菌的八种化学类别的排放模式（即芳烃、醚类、脂肪族、醇类、酮类、醛类、氯化物和氮化物）。从我们在 11 个住宅环境中的现场实验结果来看，与主动空气采样器相比，被动空气采样器导致 mVOC 空气浓度与空气中真菌浓度之间的相关系数更高（0.08 至 0.86），而对于大多数化合物，主动空气采样器则显示出负相关系数（-0.99 至-0.02）。本研究阐明了住宅环境中真菌 VOC 的存在和时间排放模式。
