The aqueous photolysis of α-pinene in solution with humic acid
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Abstract
Terpenes are produced abundantly by environmental processes but are found in very low concentrations in natural waters. Aqueous photolysis of solutions containing α-pinene, a representative terpene, in the presence of humic acid resulted in degradation of the pinene. Comparison of this reaction to photolysis of α-pinene in the presence of methylene blue leads to the conclusion that the reactive pathway for the abiotic degradation of α-pinene is due to reaction with singlet oxygen produced by irradiation of the humic material. The initial product of single oxygen and α-pinene is a hydroperoxide. Since humic materials are prevalent in most natural waters, this mechanism of photodecomposition for α-pinene probably also applies to other terpenes in surface waters and may be reasonably considered to contribute to their low environmental concentration.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | The aqueous photolysis of α-pinene in solution with humic acid |
| Series title | Journal of Contaminant Hydrology |
| DOI | 10.1016/0169-7722(92)90051-F |
| Volume | 9 |
| Issue | 1-2 |
| Year Published | 1992 |
| Language | English |
| Publisher | Elsevier |
| Contributing office(s) | Toxic Substances Hydrology Program |
| Description | 11 p. |
| First page | 79 |
| Last page | 89 |
| Online Only (Y/N) | N |
| Additional Online Files (Y/N) | N |
| Google Analytic Metrics | Metrics page |