Fig. 3From: Quantitative microbial risk assessment for waterborne pathogens in a wastewater treatment plant and its receiving surface water bodyProbability of infection (Pi) with mean E. coli counts upstream and downstream of the WWTP based on single ingestion of I mL or 100 mL of river water (Also shown is the daily Pi based on single exposure and yearly Pi based on multiple weekly exposures)Back to article page