Environmental impact of liquid wastes discharge in coastal waters

Abstract

Discharge of liquid wastes to coastal and estuarine waters has been carried out for many years by most of the countries bordering the North Sea. This paper examines recent changes in public perception and corporate awareness of the responsibilities of industry for protection of the environment. The deficiencies of laboratory-based toxicity tests are discussed, and methods that are available for the quantitative evaluation of marine communities are outlined. The paper provides examples illustrating the use of such methods in monitoring the potential impact of liquid waste discharges and in defining strategies for effluent treatment.