Groundwater Salinization in a Coastal Multilayer Aquifer: Preliminary Results on Origins and Mechanisms- Example of Recife (Brazil)

The Recife Metropolitan Region (PE, Brazil) appears as a typical environmental “hot spot” illustrating the problems of southern countries, such as urbanization or rapid industrial and touristic development. All of these factors induce high pressure on water resources, both in terms of quantity and quality in the context of global societal and environmental changes. This paper focuses on the groundwater geochemistry of a costal multilayer aquifer, and aims at investigating the sources and processes of salinization. The preliminary results of 62 groundwater samples from the five main aquifers are reported.