Pathogen impact on bathing waters

Pathogens from agricultural run-off and sewage effluent are transported to beaches where they can cause non-compliance with bathing water standards.

Pathogens from agricultural run-off and sewage effluent are transported to beaches where they can cause non-compliance with bathing water standards. Intensification of livestock-based agriculture and climate change may exacerbate this; with increased storm events resulting in heightened run off and further use of storm overflows.

Turbulence and changes in water chemistry during high flow events affect the pathogens ability to bind to sediments and determine whether those in the bed sediment become re-suspended. From here pathogens may be transported to bathing waters, where they can pose health risks to bathers.

Who is working in this area?

Lisa Avery