Abstract
For prediction of the rate with which organic compounds are oxidized and photoproducts formed in the aquatic environment by the /sup 1/O/sub 2/ route, the steady-state concentrations of O/sub 2/ in various waters were determined by using furfuryl alcohol as a trapping agent. Under noon, summer sunlight (Switzerland) in lake, river, and wastewaters, surface concentrations were (0.3-3) x 10/sup -14/ M /sup 1/O/sub 2/ per mg of DOC/L. Separation of natural aquatic organic compounds by gel permeation chromatography resulted in fractions showing little correlation between /sup 1/O/sub 2/ production efficiency and molecular weight, indicating that large macromolecular structures are not a prerequisite for the sensitization of /sup 1/O/sub 2/ formation. 26 references, 8 figures, 3 tables.
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