| microbial exposure assessment of an urban recreational lake: a case study of the application of new risk-based guidelines. | new who and australian guidelines promote a risk-management approach for minimising exposure to pathogens in recreational waters. between 2003 and 2005, they were applied to lake parramatta (10 ha, 450 ml), a potential recreation site in sydney, australia. a three stage approach was developed involving (1) initial suitability assessment using historic data, (2) revised suitability assessment based on new data and (3) characterisation of hazardous (especially wet weather) events. contrary to the ... | 2006 | 17037160 |