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

Journal of Contaminant Hydrology

By:
, , , and
Edited by:
McCalady Donald L.
DOI: 10.1016/0169-7722(92)90051-F

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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.

Additional Publication Details

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
Description:
11 p.
First page:
79
Last page:
89
Online Only (Y/N):
N
Additional Online Files(Y/N):
N