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Inactivation of indicator micro‐organisms from various sources of faecal contamination in seawater and freshwater

Aim:  The survival of indicator micro‐organisms in aquatic systems is affected by both biotic and abiotic factors. Much of the past research on this topic has been conducted using laboratory‐generated cultures of indicator bacteria. For this study, we used natural sources of faecal contamination as inoculants into environmental water samples, thereby representing the wide diversity of organisms likely to be found in faecal contamination.