## 5 Comparison of Emission Results Found in the Literature
\begin{table}
\begin{tabular}{l l l l l l l l l l} \hline \hline
**Wood** & **Conditions** & **Compounds** & **Value** & **Compounds** & **Value** & **Unit** & **Method** & **References** \\ \hline
**Fine** & Air-directed & Air-directed (23' C, 50\% RH) & Acetic acid & 3 & 1-Pentanol & 12 & & & & \\  & Ordered (23' C, 50\% RH) & Acetic acid & 3 & 1-Pentanol & 12 & & & & \\  & 28 days of sampling period & Hexanal & 34 & Furfural & 1 & & & & \\ Solid wood & Heat treatment (212 °C) & Acetic acid & 27 & Benzoldehyde acid & 12 & & & \\  & Coordinated (23° C, 50\% RH) & Pentanol & 2 & Benzoldehyde & 6 & & & \\  & 28 days of sampling period & Hexanal & 11 & Furfural & 18 & & & \\ \hline Heartwood/ & Fresh wood & Hexanal & 4/152 & Decanal & 1/11 & & & \\  & Coordinated (23’ C, 45\% RH) & Octanol & 1/72 & Benzoldehyde & 1/16 & & & \\  & 28 days of sampling period & Nomanol & 14/12 & Acetophenone & 1/11 & & & \\ \hline \multirow{3}{*}{Partickleboard} & Conditioned (23’ C, 45\% RH) & Pentanol & 82 & Nomanol & 32 & & & \\  & 3 days of sampling period & Hexanal & 851 & trans-2-octural & 41 & & & \\  & Average values & Hepanal & 21 & Benzaldehyde & 55 & & & \\  & & Octanol & 34 & & & & \\ \hline \multirow{3}{*}{MDF} & Conditioned (23’ C, 45\% RH) & Pentanol & 26 & Nomanol & 12 & & & \\  & 3 days of sampling period & Hexanal & 285 & trans-2-octural & 4 & & & \\  & 3 days of sampling period & Hepanal & 7 & Benzaldehyde & 17 & & & \\ \hline \multirow{3}{*}{**Popular**} & \multirow{3}{*}{Comditional} & Formic acid & 19-44 & Acetic acid & 949-1486 & & & \\  & & & & & & & & \\ \cline{1-1} \cline{3-7}  & & Formic acid & 19-44 & Acetic acid & 949-1486 & & & \\ \cline{1-1} \cline{3-7}  & & Conditioned (23’ C, 50\% RH) & \multirow{3}{*}{Comditional} & Formic acid & 19-44 & Acetic acid & 949-1486 & & \\ \cline{1-1} \cline{3-7}  & & 2.5 h of sampling period & & & & & & \\ \cline{1-1} \cline{3-7}  & & Formic acid & 19-44 & Acetic acid & 949-1486 & & & \\ \cline{1-1} \cline{3-7}  & & Formic acid & 19-44 & Acetic acid & 10-34 & & & \\ \cline{1-1} \cline{3-7}  & & Formic acid & 19-43 & Aceticaldehyde & 10-34 & & & \\ \cline{1-1} \cline{3-7}  & & Reins. MUF & Propanal & \(<\)3 & Acetone & 3-120 & & & \\ \cline{1-1} \cline{3-7}  & & & & & & & & \\ \cline{1-1} \cline{3-7}  & & Prop-2-anal & \(<\)1 & & & & & \\ \hline \multirow{3}{*}{**Sprace**} & \multirow{3}{*}{Air-directed} & \multirow{3}{*}{Avetic acid} & \multirow{3}{*}{12} & \multirow{3}{*}{Heanal} & \multirow{3}{*}{8} & & & \\  & 28 days of sampling period & & & & & & \\ \cline{1-1} \cline{3-7}  & & Heat treatment (190 °C) & Acetic acid & 28 & Decanal & 5 & & \\ \cline{1-1} \cline{3-7}  & & Coordinated (23’ C, 50\% RH) & Hexanal & 1 & Furfural & 25 & & \\ \cline{1-1} \cline{3-7}  & & 28 days of sampling period & Nomanol & 4 & & & & \\ \hline \hline \end{tabular}
\end{table} 
Table 10: Conf. Several recent studies highlight these comparative challenges and provide valuable emission data. In 2020, [PERSON] et al. (2020) tested and compared VOC emissions from the heartwood and sapwood of Scots pine (_Pinus sylvestris_), European larch (_Larix deciduna_), and Norway spruce (_Picea abies_), obtained at 3 and 28 days according to ISO 16000-6 and ISO 16000-9. After 3 days of testing, Scots pine exhibited the highest emissions for most compounds, namely camphene (heartwood, 198 \(\upmu\)g\(\cdot\)m\({}^{-3}\)), limonene (heartwood, 85 \(\upmu\)g\(\cdot\)m\({}^{-3}\)), \(\alpha\)-pinene (heartwood, 11448 \(\upmu\)g\(\cdot\)m\({}^{-3}\)), \(\Delta\)3-carene (heartwood: 951 \(\upmu\)g\(\cdot\)m\({}^{-3}\); sapwood: 134 \(\upmu\)g\(\cdot\)m\({}^{-3}\)), hexanal (heartwood, 77 \(\upmu\)g\(\cdot\)m\({}^{-3}\)), octanal (heartwood, 23 \(\upmu\)g\(\cdot\)m\({}^{-3}\)), decanal (heartwood, 44 \(\upmu\)g\(\cdot\)m\({}^{-3}\)), benzaldehyde (heartwood, 16 \(\upmu\)g\(\cdot\)m\({}^{-3}\)), and acetophenone (heartwood, 106 \(\upmu\)g\(\cdot\)m\({}^{-3}\)). It was also the only sample to emit terpinolene (heartwood, 40 \(\upmu\)g\(\cdot\)m\({}^{-3}\)).