Decline of the oxygen rate in water, which has serious consequences for aquatic life, caused by humans. Eutrophication is labelled as an improvement of water through the use of nutrient salts that produces changes in the structure of the ecosystem. Some of the effects are seen in the production of aquatic plants and algae, reduction in certain fish life, and the overall decrease in water quality, including other impacts that harm and prevent use. Eutrophication is a vital environmental issue that ultimately results in the degradation of water quality and happens to be one of the primary drawbacks to attaining optimal quality goals at satisfactory levels.