Enterococcus and Escherichia coli Like indicators of fecal pollution in coastal beaches of Lima ; Enterococcus y Escherichia coli como indicadores de contaminación fecal en playas costeras de Lima

In July (winter) of 2005 and January (summer) of 2006 there was realized the microbiological study of the water of 8 beaches of summery recreation of the coast of Lima by the purpose of evaluating the usefulness of Escherichia coli and Enterococcus like indicators of fecal pollution. In every month 5 series of samplings were done. They used like indicators of fecal pollution total Coliforms (CT) 5,000 NMP/100mL, fecal Coliforms (CF) 1,000 NMP/100mL according to the Peruvian Norm and also to Escherichia coli (EC) 100 NMP/100mL and Enterococcus (E) 35 NMP/100mL. The results of the analyses realized in January qualify to the water of 3 beaches like unacceptable for the bath, according to the Peruvian Norm; but it is used as indicator EC and E, 8 beaches would be considered to be like unacceptable. The results of July demonstrate that the water of 8 beaches was acceptable, according to the Peruvian Norm, but it is used like indicators EC and E, 2 beaches would be considered like unacceptable. If we take in consideration that EC and E have major correlation with gastrointestinal diseases than CT and CF; we might affirm that EC and E are good indicators of fecal pollution for recreational waters of primary contact and they should be taken in consideration in a next review of the Peruvian Norm. ; En los meses de julio (invierno) del 2005 y enero (verano) del 2006 se realizó el estudio microbiológico del agua de 8 playas de recreación veraniega de la costa de Lima con la finalidad de evaluar la utilidad de Escherichia coli y Enterococcus como indicadores de contaminación fecal. En cada mes se hicieron 5 series de muestreos. Se utilizó como indicadores de contaminación fecal a Coliformes totales (CT) 5,000 NMP/100mL, Coliformes fecales (CF) 1,000 NMP/100mL de acuerdo a la Norma Peruana y también a Escherichia coli (EC) 100 NMP/100mL y Enterococcus (E) 35 NMP/100mL. Los resultados de los análisis realizados en enero califican al agua de 3 playas como inaceptable para el baño, de acuerdo a la Norma Peruana; pero si se ...