Table 3 Emission ratio of VOCs from five different plantation timbers at ambient temperature

1

10.70

α-Pinene

2.31 ± 1.82

0.50 ± 0.10

1.02 ± 0.32

3.52 ± 2.52

0.58 ± 0.12

2

11.58

Camphene

0.53 ± 0.20

0.14 ± 0.02

0.10 ± 0.03

1.54 ± 0.93

0.11 ± 0.02

4

14.72

Limonene

0.52 ± 0.34

0.15 ± 0.14

0.36 ± 0.22

1.07 ± 0.51

0.21 ± 0.12

19

22.26

Myrtenal

28.40 ± 18.02

0.58 ± 0.33

0.30 ± 0.23

2.64 ± 1.71

0.35 ± 0.21

22

22.84

Verbenone

0.54 ± 0.12

0.12 ± 0.11

0.10 ± 0.12

3.51 ± 1.84

0.10 ± 0.11

28

25.09

trans-Myrtanol

8.73 ± 5.11

0.14 ± 0.12

0.11 ± 0.12

0.24 ± 0.12

0.12 ± 0.00

29

26.28

Isobornyl acetate

1.24 ± 0.70

0.15 ± 0.10

0.20 ± 0.13

1.82 ± 1.54

0.15 ± 0.10

32

29.08

α-Cubebene

1.64 ± 1.11

2.61 ± 1.21

0.35 ± 0.13

0.24 ± 0.22

0.33 ± 0.13

35

30.17

α-Copaene

1.60 ± 1.16

1.22 ± 0.53

0.27 ± 0.10

0.44 ± 0.32

1.13 ± 0.31

37

30.84

β-Elemene

15.23 ± 11.52

1.46 ± 0.80

1.21 ± 0.40

4.84 ± 3.83

1.52 ± 0.62

38

31.27

Sibirene

5.11 ± 4.41

0.24 ± 0.20

0.25 ± 0.11

0.32 ± 0.32

0.26 ± 0.10

40

31.73

α-Cedrene

1.02 ± 0.40

2.72 ± 2.11

6.81 ± 0.62

0.83 ± 0.72

7.00 ± 1.74

43

32.47

Thujopsene

0.53 ± 0.40

0.43 ± 0.30

1.12 ± 0.00

0.24 ± 0.21

4.21 ± 1.21

45

33.36

α-Humulene

0.84 ± 0.50

1.10 ± 0.53

0.63 ± 0.10

0.22 ± 0.11

0.65 ± 0.13

49

35.22

α-Muurolene

3.44 ± 1.91

4.61 ± 2.31

1.21 ± 0.31

1.72 ± 1.32

3.45 ± 0.84

52

35.73

Cubebol

5.71 ± 3.52

1.02 ± 0.60

1.42 ± 0.32

3.64 ± 3.02

5.54 ± 1.31

53

36.09

δ-Cadinene

10.05 ± 6.43

12.63 ± 6.83

3.24 ± 0.72

1.64 ± 1.03

7.21 ± 1.62

59

36.82

β-Elemol

0.16 ± 0.11

0.32 ± 0.20

0.22 ± 0.00

0.14 ± 0.03

Total

87.59

30.14

18.92

28.61

32.92