Aplicação do método Drastic para caracterizar a vulnerabilidade do aquífero livre no bairro do Bessa em João Pessoa-PB.

Abstract

The population development of a neighborhood is a constant in human life, especially when it is located in a coastal region, conducive to tourism, leisure and housing. So is the neighborhood in the capital of Paraiba, Bessa, This is a flat, sandy, well-placed and preferred by construction enterprises in the construction of large buildings and whose expansion process goes unchecked, rude, above all, the natural features of the environment, giving a new face to site. The objective of this work is to develop the map of vulnerability of the aquifer located free in the neighborhood, indicating the parts most susceptible to contamination by pollutants caused by human presence. For this, we used data from the technical report of ATECEL / UFPB 1999, performed to identify the natural movement of groundwater in the aquifer and its influence on surface drainage. The adopted methodology, the DRASTIC model to be widely used in Brazil, highlighting the contribution of seven hydrogeologic parameters related to the natural characteristics of the region. The final map of vulnerability DRASTIC Bessa area showed that the region is highly susceptible to contamination. This trend was classified into three class intervals as follows: moderate, high and very high, the latter being the greatest coverage area. It is therefore important that the population becomes aware of this reality and avoid the deposition of pollutants into contact with the ground, to preserve the fairness and integrity of the aquifer for human health.