National Research Program


Transport and Degradation of Organic Substances in Streams

Organic substances in streams affect the water quality and uses of the water. To determine the effect of organic substances on water quality, the physical, chemical, and biological processes involved in the transport and degradation of these substances must be understood. Procedures for measuring or estimating the rate coefficients describing these processes must be developed. Models using these coefficients must then be developed for predicting the fate of organic substances in streams and their effect on water quality. Project objectives are: (1) to study the fundamentals of volatilization, dispersion, and sorption on sediments of organic substances in water; (2) to develop sub-models of these processes including methods for measuring or estimating the process rate coefficients; and (3) to integrate these sub-models into overall transport and fate models for organic substances in streams.

For information on additional projects in the National Research Program, see Indexes to NRP projects and bibliographies.

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