Appropriate basis of effluent standards for industrial wastewaters.

Designing industrial discharge standards should reflect the numerical compromise between what can be achieved to prevent environmental pollution and sustainable development. They should involve categorical limitations for specific sources. Micropollutants represent the major concern for industrial effluents. A micropollutant-based subcategorization is needed for an effective control of industrial effluents. Regulations imposed require a comprehensive knowledge of polluting processes and sources, and technological limits of available treatment technologies.