ABSTRACT
Environmental pollution is defined as the introduction of any organic or inorganic substance, energy form, and/or other stresses (gases, genotoxic agents, radionuclides, etc.) to the environment at a rate faster than its accommodation by dispersion, recycling, detoxification, bioremediation, or storage in some harmless form. Pollution may change the composition, function, and trophic status of ecosystems in reversible or irreversible ways by affecting their biotic or abiotic components. Aquatic pollution comprises all allochthonous inputs and stresses that are-in contrast to natural allochthonous inputsdirectly or indirectly caused by anthropogenic activities.
