Aquatic pollution is defined as the contamination of aquatic systems (such as lakes, rivers, oceans, aquifers, and groundwater) by enormous amounts of waste material that alters the water in a negative manner. When hazardous contaminants are discharged directly or indirectly into aquatic systems without being removed, this sort of ecological deprivation occurs. Pollution of the water causes harm to organisms and vegetation that thrive in it, including amphibians. Industrial waste, mining activities, sewage and wastewater, marine dumping, fossil fuel combustion, accidental oil leakage, global warming, atmospheric deposition, and urban development are all major sources of aquatic contamination.
Aquatic species have played a significant part in our ecosystem as early warning and monitoring systems for pollutant burdens. They do, however, have the potential to achieve even more, just as they have in basic biology, where preparations like the squid axon have been crucial in defining physiological and biochemical systems. To evaluate the dangers posed to the aquatic environment, aquatic toxicology entails measuring pollutant levels and assessing harm to freshwater and/or marine organisms. This branch of study also contains information on how potential risks in and near aquatic habitats can influence humans.