Sammanfattning

Pathogens are an ongoing issue for catchment water management and quantifying their transport, loss and potential impacts at key locations, such as water abstractions for public supply and bathing sites, is an important aspect of catchment and coastal management. The Integrated Catchment Model (INCA) has been adapted to model the sources and sinks of pathogens and to capture the dominant dynamics and processes controlling pathogens in catchments. The model simulates the stores of pathogens in soils, sediments, rivers and groundwaters and can account for diffuse inputs of pathogens from agriculture, urban areas or atmospheric deposition. The model also allows for point source discharges from intensive livestock units or from sewage treatment works or any industrial input to river systems. Model equations are presented and the new pathogens model has been applied to the River Thames in order to assess total coliform (TC) responses under current and projected future land use. A Monte Carlo sensitivity analysis indicates that the input coliform estimates from agricultural sources and decay rates are the crucial parameters controlling pathogen behaviour. Whilst there are a number of uncertainties associated with the model that should be accounted for, INCA-Pathogens potentially provides a useful tool to inform policy decisions and manage pathogen loading in river systems. (C) 2016 Elsevier B.V. All rights reserved.

Nyckelord

Pathogens; Modelling; Water quality; River Thames; E. coli; Land use change

Publicerad i

Science of the Total Environment
2016, Volym: 572, sidor: 1601-1610
Utgivare: ELSEVIER SCIENCE BV

SLU författare

• Futter, Martyn

  • Institutionen för vatten och miljö, Sveriges lantbruksuniversitet
    

Globala målen

SDG3 Säkerställa hälsosamma liv och främja välbefinnande för alla i alla åldrar
SDG6 Säkerställa tillgången till och en hållbar förvaltning av vatten och sanitet för alla
SDG11 Göra städer och bosättningar inkluderande, säkra, motståndskraftiga och hållbara
SDG13 Vidta omedelbara åtgärder för att bekämpa klimatförändringarna och dess konsekvenser


UKÄ forskningsämne

Miljövetenskap


Publikationens identifierare

DOI: https://doi.org/10.1016/j.scitotenv.2016.01.128

Permanent länk till denna sida (URI)

https://res.slu.se/id/publ/81305