Biological Monitoring in Water Pollution focuses on the processes, methodologies, and experiments involved in monitoring water pollution. Divided into six parts, the selection features the contributions of authors who have devoted time and energy in advancing biological monitoring to measure pollution in water. The first part is a review paper that focuses on the strengths of biological monitoring relative to the detection of harmful conditions. This part stresses that biological monitoring has received considerable attention. The second part deals with review papers on biological monitoring.