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Physical-chemical and microbiological evaluation of water coming from alternative solutions supply in the metropolitan area of Santos, State of São Paulo

Abstract

The water coming from alternative solutions supply is usually not treated and requires special attention from the health authorities . However , the Program for Monitoring of Water Quality for Human Consumption - PROAGUA established in the State of São Paulo , is not included in the samples taken in the metropolitan area of Santos , State of Sao Paulo . In this paper , we analyze the quality of water fountains , springs and wells located in said region. 50 samples will be collected and analyzed for the presence of total and fecal coliforms , using the technique defined substrate ( Colilert ) , described in the methodology of the American Public Health Association - APHA , 21th . ed. 2005 plus the following physico -chemical properties: ammonium chloride , free residual chlorine ( in treated waters ) , cadmium , lead, apparent color , hardness, iron, manganese, nitrate, nitrite , odor , pH , total dissolved solids , sulfate and turbidity , according to the techniques described in " Methods for physical and chemical analysis of foods : analytical standards of the Instituto Adolfo Lutz ," 4th . ed. , ANVISA 2005. Meanwhile, the techniques are validated under a variety of physical-chemical characteristics , in particular the metals cadmium, lead , manganese and possibly other by means of atomic absorption spectrophotometry . It is hoped that the survey results serve to subsidize Surveillance to identify possible sources of contamination of samples , aiming at the prevention and control of diseases and waterborne , and clarify consumers about the health risks with the collaboration media. (AU)

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