Clean Water and Sanitation (SDG 6), Climate Action (SDG 13)
Aquatic Environmental Assessment of Espírito Santo, Púnguè, Licungo and Molocué Estuaries in Mozambique Paulino Vicente Muteto* Chemistry Department, Science Faculty, University Eduardo Mondlane, Mozambique The management of aquatic ecosystems, in particular estuaries, has become a serious concern in recent years for government regulatory authorities, environmentalists and the general public, as these areas serve as food, habitat, refuge and breeding sites for diverse species. living beings, including humans of great economic and ecological importance. The characterization of the aquatic environments of the estuaries is fundamental because they are indicators of the influence of natural and anthropogenic sources. From these studies, programs and projects to mitigate the degradation of the aquatic environments of estuaries may be designed to conserve or restore the good quality of water resources and ecosystem functioning. Considering in this study the potential of the risks of contamination of aquatic organisms due to water pollution, it is also relevant to show humans how to act to control their polluting sources and how to sustainably take advantage of the conditions that the environment can provide, without changing your characteristics. Knowledge of water quality is also essential for water management. The scarce information on the quality of Mozambique's aquatic environments motivates the creation of a database on these areas. The shortage of fishery in these Provinces is the consequence of this disequilibrium due to human interferences, climate changes, and bad biodiversity conservation. These facts make the monitoring of these estuaries necessary as an essential tool for the management and implementation of public policies and actions to minimize or mitigate these impacts, especially when it comes to the sustainable use and efficient management of ecosystem conservation. This study is relevant for the preservation of the water quality of estuaries water bodies, which are essential for the maintenance of the different life forms in them. The poster will present the results of the Aquatic Environmental Assessment of Espírito Santo, Púnguè, Licungo and Molocué Estuaries of three Mozambican Estuaries. This evaluation was carried out through the determination of heavy metals by ICP-OES in the analysis of sediments and water of the estuaries. In order to determine the level of contamination in the estuaries, the values of the concentrations of metals determined in the sediments of the estuaries were compared with the limits established by the WHO. Mining, industrial effluent discharges, port and agricultural activities were identified as the main sources of pollution in estuaries and, in this way, also in the oceans.
P15
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