ABSTRACT
There are a variety of different techniques currently used to analyse the flow of water and sediments in the environment. Of these, tracer formats based on fluorescence are the most flexible, especially when an encapsulated particulate fluorescent tracer is used. This paper describes the development of a laser-induced-fluorescent sediment tracing system, Seditrace. In field trials, the basic Seditrace system has been shown to be an effective technique for real time monitoring of large sections of water. The 0.5x0.6m effective detection area has proved adequate for practical tracing. A minimal detection concentration of 10−8 M has been achieved.
