The aqueous photolysis of α-pinene in solution with humic acid

Journal of Contaminant Hydrology
By: , and 



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
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