AVALIAÇÃO DOS PARÂMETROS FÍSICO-QUÍMICOS DAS LAGOAS COSTEIRAS DO PARQUE DAS DUNAS, SALVADOR-BA

Abstract

The study on understanding the dynamics of physic-chemical parameters in water bodies is essential to understand the functioning of aquatic ecosystems. Thus, the present study it is necessary to know the actual chemical composition of the dune ecosystem that is considered an important area of groundwater recharge. Therefore, this study aims to evaluate the physic-chemical parameters of coastal lagoons of Parque das Dunas, Salvador - BA, using the spatial variation of some limnological variables in six coastal lagoons, in this urban area. The samples were collected and analyzed at the laboratory of Institute of Geosciences of UFBa. The parameters studied were: temperature, pH, turbidity, conductivity, DO, total dissolved solids, salinity, nitrate, sulfate, OBD and chlorophyll a. Five lakes had values above the nitrate established by CONAMA Resolution 357/05 (10mg/L).

Index Terms - Coastal Lagoon, physic-chemical parameters, Spatial distribution.