Avaliação da balneabilidade das águas do rio Itapicurú no perímetro rural do município de Rio Real - BA

Abstract

The good quality water is essential for the survival of human beings, however is becoming increasingly scarce as industrialization, population and agriculture widen. Water quality is entirely related to the presence of pathogenic micro-organisms that are harmful to human health, so the verification of this is a major factor in the preservation of health. The river basin covers an area Itapicuru of about 36,440 km2. Is considered one of the largest in the state of Bahia, its waters bathe the municipality of Rio Real, and are much sought after for the realization of recreational activities. This work is experimental, being a pioneering study in this location, and set out to assess total coliform levels, fecal coliform, heterotrophic bacteria and pH. The total coliform values ranged 4-920 NPM / 100 ml coliform varied NPM 23-140 / 100, the pH ranged from 7.3 to 8 were found 108 colony forming units (CFU) per ml , given the current legislation. The analyzes carried out in Rio Itapicuru in a rural area of Rio Real City are classified as treasury and excellent for recreational activities of primary contact. By presenting indices below 1,000 MPN, the waters of this river are characterized as balneáveis.