## 3 Results and Discussion

Table 2: _Cont._  
\begin{table}
\begin{tabular}{c c c c c c c c c c c c c} \hline \hline \multirow{2}{*}{**N\({}^{*}\)**} & **RT** & **RI** & \multirow{2}{*}{**Compound**} & \multicolumn{6}{c}{**Concentration in Mixtures (ppm)**} \\ \cline{3-13}  & & **colc** & & **P-155** & **20.3-135** & **Z0.6-135** & **PR10-155** & **Z0.6-R10-125** & **PR20-155** & **Z0.6-R20-135** & **PR-30-155** & **Z0.6-R30-145** \\ \hline
65 & 12.35 & 1067 & 2.3-Dimethylnome & 4.53 & 6.68 & 1.75 & 8.98 & 5.30 & 1.54 & 1.25 & 8.48 & 1.38 \\
66 & 12.46 & 1070 & 2-Methyladecane & 5.94 & 8.58 & 1.96 & 11.39 & 6.65 & 1.97 & 1.21 & 11.37 & 1.81 \\
67 & 12.46 & 1076 & 3-Methyladecane & 5.58 & 7.59 & 2.29 & 10.16 & 5.99 & 2.18 & 1.70 & 9.77 & 1.79 \\
68 & 13.30 & 1096 & -Undence & - & - & - & - & 5.82 & 1.85 & 1.08 & - & - \\
69 & 13.51 & 1103 & Undecane & 24.91 & 35.09 & 7.14 & 49.90 & 27.63 & 9.31 & 7.48 & 41.81 & 7.79 \\
70 & 14.57 & 1135 & 2.3-Dimethyladecane & - & - & - & 11.16 & 5.47 & 1.54 & 1.25 & 7.50 & 1.13 \\
71 & 14.51 & 1140 & 1,2,4-S:Faternethyl & 2.28 & 5.77 & 1.10 & 6.12 & 2.86 & 0.98 & 0.69 & 3.77 & 0.52 \\  & & & & & & & & & & & & \\
72 & 15.17 & 1163 & 2,6-Dimethyl & - & - & - & 6.44 & 2.83 & - & 0.48 & - & 0.42 \\
73 & 15.26 & 1166 & 4-Methyladecane & - & 3.39 & - & 5.97 & 2.76 & 0.75 & 0.64 & 2.45 & 0.40 \\
74 & 15.37 & 1169 & 2-Methylundecane & 1.87 & 3.25 & 0.79 & 5.01 & 2.17 & 0.67 & 0.50 & 2.40 & 0.37 \\
75 & 16.05 & 1191 & 2,3-Dimethyl & - & 3.82 & - & 3.32 & 1.63 & 0.73 & 0.53 & - & - \\
76 & 16.21 & 1197 & 1,2-Bernisothiazole & - & 1.27 & 0.10 & 4.94 & 2.95 & 4.15 & - & - & 0.85 \\
77 & 16.43 & 1204 & Dodecane & 9.02 & 13.71 & 2.29 & 23.43 & 10.79 & 1.00 & 3.43 & 10.23 & 3.14 \\
78 & 16.77 & 1218 & 2,6-Dimethyl & 3.06 & 5.38 & 2.69 & 5.58 & 3.73 & - & 0.63 & 0.98 & 0.60 \\
79 & 18.43 & 1278 & 2-Burk-1-octanol & 1.59 & 0.61 & 3.08 & 1.33 & 0.59 & 0.23 & 0.49 & 0.21 & - \\
80 & 19.09 & 1301 & Tridecane & 2.41 & 2.98 & 0.83 & 5.52 & 2.38 & 1.17 & 0.73 & 1.19 & 0.47 \\
81 & 21.66 & 1400 & Tetadecane & 0.33 & 0.35 & 0.26 & 0.86 & 0.46 & - & 0.25 & 0.13 & 0.06A similar study has been carried out to analyze VOCs in air from the paving and compaction stages of HMA; twenty-eight compounds were identified in the air samples, of which toluene, 4-ethyltoluene, xylene, 1,3,5-trimethylbenzene, and ethylbenzene were the most abundant [84]. All twenty-eight compounds were also identified in the asphalt mixture fumes analyzed in the present study. Additionally, [PERSON] et al. [84] described the presence of chlorinated compounds such as tetrachloroethylene, chloromethane, and 1,2-dichloroethane, among many others, of which only tetrachloroethylene was identified in the present study. Moreover, [PERSON] and [PERSON] [16] determined the presence of other chlorinated compounds such as di- and trichloroethane derivates, chloroform, carbon tetrachloride, and tri- and tetrachloroethylene derivates in atmospheric samples taken from HMA and WMA, of which only chloroform (trichloromethane) was identified in the present study. Although polycyclic aromatic hydrocarbons (PAHs) are commonly present in hot mix asphalts [23, 85], none were detected in the present study even though DVB/PDMS fibers were used to trap volatile compounds. Fibers containing DVB and PDMS layers have been found to be suitable for PAH analyses [59, 67, 86, 87]. Quantification of PAHs is a complex, expensive, and time-consuming process due to the hydrophobicity and low water solubility of PAHs and their propensity for low recovery levels due to losses during sampling and sample preparation [87]. Gas-phase PAH sampling and sample preparation is usually performed by trapping on different types of sorbents materials and filters such as polyurethane foam (PUF) [88, 89], XADs [90], Teflon [91], and Carbopack C [92], and by subsequent extraction with organic solvents. Thermal desorption or solid phase microextraction (SPME) are widely used as an alternative to those methods [87].