The results of twenty-two field tests accomplished in steady flow with the employment of tracing techniques in different streams are discussed in this article. The mean stream velocity is appraised from the travel time of the tracer cloud, and the longitudinal dispersion coefficient is evaluated by five different direct methods that were discussed on part 1 of this work. The quality of the results is analyzed based on the determinations made by the routing procedure, that is taken as superior to the others. The results of five of the tests were also good for the reproduction analysis, while four other tests allowed for an evaluation of the small influence of the tracer's injection method in the determination of the longitudinal dispersion coefficient for the routing procedure.
longitudinal dispersion; tracers; water pollution
