Water quality assessments: a guide to use of biota, sediments and water in environmental monitoring, second edition

UNESCO ; WHO ; UNEP (1996)

This guidebook concentrates on the process of setting up monitoring programmes for the purpose of providing a valid data base for water quality assessments. The choice of variables to be measured in the water, the sediment and in biota is described in Chapters 3, 4 and 5 and the common procedures for data handling and presentation in Chapter 10. Interpretation of these data for the purpose of assessing water quality in rivers, lakes, reservoirs and groundwater is presented in Chapters 6, 7, 8 and 9 respectively. These chapters, specific to the type of water body, focus on monitoring strategies, requirements for water quality and quantity data and interpretative techniques. The choice of the appropriate methods is illustrated by case studies for typical water pollution situations. In view of the varying levels of resources which countries can put at the disposal of this activity, the strategies for water quality assessment are developed according to three different levels of monitoring operations: simple, intermediate and advanced.