Singlet oxygen in surface waters. 3. Photochemical formation and steady-state concentrations in various types of waters

The steady-state concentrations of singlet molecular oxygen (SMO) in various waters were determined for prediction of the rate with which organic compounds are oxidized and photoproducts formed. Under noon, summer sunlight in lake, river, and wastewaters, surface concentrations were (0.3 -3) X 10 -1...

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Veröffentlicht in:	Environ. Sci. Technol.; (United States) 1986-04, Vol.20 (4), p.341-348
Hauptverfasser:	Haag, Werner R, Hoigne, Juerg
Format:	Artikel
Sprache:	eng
Schlagworte:	520100 - Environment, Aquatic- Basic Studies- (-1989) 520200 - Environment, Aquatic- Chemicals Monitoring & Transport- (-1989) CHEMISTRY CHROMATOGRAPHY COMPARATIVE EVALUATIONS ECOLOGICAL CONCENTRATION ELEMENTS ENVIRONMENTAL SCIENCES EUROPE GEL PERMEATION CHROMATOGRAPHY HYDROGEN COMPOUNDS LAKES LIQUID WASTES NONMETALS OXYGEN OXYGEN COMPOUNDS PHOTOCHEMISTRY RIVERS SEPARATION PROCESSES STREAMS SURFACE WATERS SWITZERLAND SYNTHESIS WASTE WATER WASTES WATER WATER CHEMISTRY WESTERN EUROPE
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Zusammenfassung:	The steady-state concentrations of singlet molecular oxygen (SMO) in various waters were determined for prediction of the rate with which organic compounds are oxidized and photoproducts formed. Under noon, summer sunlight in lake, river, and wastewaters, surface concentrations were (0.3 -3) X 10 -14 M smo/mg of dissolved organic carbon/l. Separation of natural aquatic organic compounds resulted in fractions showing little correlation between smo production efficiency and molecular weight, indicating that large macromolecular structures are not a prerequisite for the sensitization of smo formation.
ISSN:	0013-936X 1520-5851
DOI:	10.1021/es00146a005