Jonathan King

Project: Modelling the decay and transport of pathogens using high performance computing

Supervisors: Professor Roger Falconer & Reza Ahmadian


As a result of the EU revised Bathing Water Directive (2006/7/EC) a new, and more stringent, water quality classification system for bathing waters was introduced in November 2015. In order to ensure these targets are met it is important to understand the processes that determine the concentration of certain indicator organisms used to determine compliance, including, in particular, intestinal enterococci and Escherichia coli. This will also enable the study of specific events to predict compliance or failure of bathing waters under a range of scenarios.


Jonathan is based at the Hydro-environmental Research Centre at Cardiff University. His research is focused on developing integrated bacterial and hydrodynamic models to better understand the factors effecting the transport and decay of faecal indicator organisms (FIOs) and establishing mitigating measures that can be implemented to reduce their concentration in estuarine and coastal waters.

His work is focused on Swansea Bay and the Ribble Estuary, both popular bathing locations, and with the latter being a short distance south of Blackpool.

Before joining the Hydro-environmental Research Centre, Jonathan worked as a Package Engineer for Sir Robert McAlpine. Jonathan holds a first class honours in MEng Civil Engineering (Cardiff) and achieved a first class grade in the Water Informatics Postgraduate School (Exeter). He is a student member of CIWEM and during his PhD has held the positions of Treasurer and President for the International Association of Hydro-Environment Engineering Young Professionals Network at Cardiff University.

Please feel free to contact Jonathan directly if you see any opportunities to collaborate.

Jonathan’s Research Poster

Keywords: Water quality, bathing water directive, bacterial transport, faecal indicator organisms, decay rates, numerical modelling.