Enhancement of the water solubility of organic pollutants such as pyrene and atrazine by dissolved humic and fulvic acids
- Univ. of Maine, Orono, ME (United States); and others
Many factors determine the fate and transport of an organic pollutant in the environment but water solubility is certainly one of the most important. Among the environmental factors that alter the solubility of a molecule are naturally occurring humic and fulvic acids. We have hypothesized that the humic/fulvic acids from different sources within a watershed have different binding affinities for pollutants such as pyrene and atrazine. This could lead to different rates of transport or bioavailability within the watershed. Humic/fulvic acids were isolated from a stream, adjacent wetland and nearby wooded upland sites. A fluorescence quenching method was developed to quantify the binding coefficient of the pollutants with the dissolved organic carbon. From these results a model was constructed to determine the sites with the greatest potential to modify pollutant contamination in the environment.
- OSTI ID:
- 214885
- Report Number(s):
- CONF-950801--
- Country of Publication:
- United States
- Language:
- English
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