RESUMO
A monitoring program was carried out in bathing waters along the sea-coast of the Adriatic Sea. The investigation was aimed at obtaining a quali-quantitative picture of microorganisms of anthropic origin and of a more strictly autochthonous origin and at verifying the existence of possible reciprocal correlations and combinations of relationship between them. Results showed that the concentrations of indicators of faecal contamination, whether within or over the values established by legislation, are not always related to the presence and density of microorganisms of environmental origin but the regression models used can help to describe how these latter microorganisms can be in relation to levels of the other parameters. The difficulty is evident of the predictability of health effects swimming-associated; for this reason more complex models that are currently used should be taken into account for minimising the risk for bathers.
