About the Authors

Sarah Purnell

Roles Conceptualization, Formal analysis, Investigation, Methodology, Project administration, Visualization, Writing – original draft, Writing – review & editing

S.E.Purnell@Brighton.ac.uk

Affiliation Environment and Public Health Research and Enterprise Group, Centre for Aquatic Environments, School of Applied Sciences, University of Brighton, Brighton, United Kingdom

Nick Mills

Roles Funding acquisition

Affiliation Southern Water Services Ltd. Southern House, Worthing, West Sussex, United Kingdom

Keith Davis

Roles Data curation

Affiliation Environment Agency, Horizon House, Bristol, United Kingdom

Christopher Joyce

Roles Validation, Writing – review & editing

Affiliation Environment and Public Health Research and Enterprise Group, Centre for Aquatic Environments, School of Applied Sciences, University of Brighton, Brighton, United Kingdom

Competing Interests

I have read the journal’s policy and the authors of this manuscript have the following competing interests; NM is employed by Southern Water Services Ltd. The funder had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. The funding provided by the commercial source Southern Water Services Ltd does not alter our adherence to all PLOS ONE policies on sharing data and materials.