Análise da balneabilidade do mar de Pajuçara à Cruz das Almas na cidade de Maceió-AL

Abstract

The main objective of evaluating the quality of bathing water in the sea is to inform the population and State authorities whether the beach is suitable for bathing or not. This analysis is performed in the State of Alagoas by Instituto do Meio Ambiente, which releases weekly reports on the quality of bathing water of the beaches from all over the State coast. The microbiological parameter is the amount of the bacteria Escherichia coli, which is present in every human feces. The marine environment is not appropriate for the reproduction of this bacterium, then its presence in high quantities and for longs periods of time indicates recent and periodic contamination of feces from domestic sewage in the region. The present paper uses the data collected by IMA-AL that it’s available on its website from September of 2016 to August 2017, containing the beaches of Pajuçara, Ponta Verde, Jatiúca and Cruz das Almas. The results available are classified whether the water is suitable for bathing or not according to resolution 274/2000 of the Conselho Nacional do Meio Ambiente. The data shows that the beaches of Pajuçara and Ponta Verde present better results than the beaches of Jatiúca and Cruz das Almas. When it comes to variation of the quality of the water throughout the year it worsens when there is greater precipitation of rain.