Giulliari Alan Da Silva Tavares De Lira,Alba Lemos de Oliveira,Eliane Lopes Borges,Maria de Fatima de Vasconcelosw Silva,Osman de Oliveira Lira,Vilma Ramos Feitosa, OPAS/FUNASA, , giulliari@gmail.com
Abstract
Considering the importance of monitoring cyanobacteria in aquatic systems, the fact that these organisms are potential toxin producers and the obligation to ensure water quality through control and vigilance in compliance with Brazilian Ministry of Health ordinance nº 518/2004, the aim of the present study was to assess the water quality of surface springs that supply indigenous villages and municipalities with autonomous water-supply services with regard to the presence of these organisms. Qualitative and quantitative analyses were carried out in the springs of indigenous villages in the states of Pernambuco, Paraíba, Alagoas, Ceará and Bahia as well as municipalities with autonomous services in the states Pernambuco, Rio Grande do Norte and Sergipe. In the majority of ecosystems studied, the number of cells/mL-1 was below the limits established in the ordinance. However, the presence of species with a history of toxic blooms in Brazil was frequent, underscoring the need for the implantation of monthly monitoring plans in these environments.
Palavras Chave: Análise Qualitativa e Quantitativa; Sistemas de Abastecimento; Vigilância Ambiental.