Table 1.
General types of terpenes and terpenoids emitted from forested areas. Some of the well-known synonyms and molecular formulas are shown in brackets. All structures of the compounds are from the PubChem 3D viewer database (https://pubchem.ncbi.nlm.nih.gov), in which carbons and oxygens are colored in gray and red, respectively. For more details on the drawing, refer to the description in the Pubchem web site (https://pubchem.ncbi.nlm.nih.gov/pc3d/PC3DView1.html).
| Type | Name (Synonym, Molecular Formula) | Ref | |||
|---|---|---|---|---|---|
| Monoterpene | α-Pinene (C10H16) |
β-Pinene (C10H16) |
3-Carene (C10H16) |
d-Limonene (C10H16) |
[24,33,34,35,36,37] |
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| Camphene (C10H16) |
Myrcene (C10H16) |
α-Terpinene (C10H16) |
γ-Terpinene (C10H16) |
||
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| α-Phellandrene (C10H16) |
β-Phellandrene (C10H16) |
p-Cymene (C10H14) |
Sabinene (C10H16) |
||
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| Terpinolene (C10H16) 
|
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| Oxygenated monoterpene | 1,8-Cineole (Eucalyptol, C10H18O) |
Camphor (C10H16O) |
Borneol (C10H18O) |
α-Terpineol (C10H18O) |
[34,37] |
|
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| Terpinen-4-ol (C10H18O) |
Linalool (C10H18O) |
Linalool-oxide (C10H18O2) |
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| Monoterpene derivatives | Bornyl acetate (C12H20O2) |
[34] | |||
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| Sesquiterpene | Humulene (α-Caryophyllene, C15H24) |
β-Caryophyllene (trans-Caryophyllene, C15H24) |
[34,37,38] | ||
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