INSTRUMENTATION FOR MONITORING WATER QUALITY.

The needs for water quality data and the accuracy required for such data are discussed in the context of effective river management and the production of water for domestic and industrial use. Commercially available land-based and submersible equipment are described and their performance in the laboratory and in the field are discussed. The advantages of the use of a telemetry network for monitoring water quality are discussed and a system operating under central computer control is described. Progress in sensor development is discussed.