Análise microbiológica e físico-química das águas da praia de Atalaia na cidade de Luís Correia - PI

Abstract

Water is one of the most important natural resources for maintaining life. Among the various types of water bodies stands out as salt waters, since these bodies of water are used for fishing, leisure, navigation, among others. Even this water resource is important, it is not taken care of the way it should, since they are the final destination of domestic and/or industrial sewage. The present work has the objective of evaluating the physical-chemical and microbiological effects of the waters of Atalaia’s Beach, located in the municipality of Luiz Correia in the State of Piauí. This beach has a great socioeconomic importance for a population of the region, and even with this great relevance, there is a disregard for water bodies. The waters of Beach of Atalaia were characterized by their physicochemical and microbiological effects, where the resolution of CONAMA of number 274 of 2000 was used for bathing water; and ordinance number 2914/2011 of the Ministry of Health (drinking water) was used for comparative purposes, since there are some parameters that Resolution 274 of CONAMA does not address. or the physico-chemical characterization, the parameters were: pH, Alkalinity, Hardness, Turbidity, Color, Iron, Ammonia, Chlorides, and Microbiological as: Esherichia coli or Coliforms Thermo tolerant. The physico-chemical parameters were obtained from colorimetric techniques, using a potability kit for determination of the analyzes. The microbiological analyzes were obtained through the Spread plate method. The results obtained for physico-chemical analysis when compared with a resolution 274 of 2000 of CONAMA, were within the established standards. As microbiological measures indicated a presence of microorganisms, which corroborate with the values of dissolved Oxygen, since they were low, indicating a significant presence of organic matter. Even with the parameters within the limits established for bathing waters, it is important an environmental education policy of Atalaia’s beach, since the same way is very important for the population of the Northern Region of Piauí.