J 2016

Fate and transport of polychlorinated biphenyls (PCBs) in the River Thames catchment - Insights from a coupled multimedia fate and hydrobiogeochemical transport model

LU, Q., M.N. FUTTER, Luca NIZZETTO, G. BUSSI, M.D. JURGENS et. al.

Basic information

Original name

Fate and transport of polychlorinated biphenyls (PCBs) in the River Thames catchment - Insights from a coupled multimedia fate and hydrobiogeochemical transport model

Authors

LU, Q. (826 United Kingdom of Great Britain and Northern Ireland), M.N. FUTTER (826 United Kingdom of Great Britain and Northern Ireland), Luca NIZZETTO (380 Italy, belonging to the institution), G. BUSSI (826 United Kingdom of Great Britain and Northern Ireland), M.D. JURGENS (826 United Kingdom of Great Britain and Northern Ireland) and P.G. WHITEHEAD (826 United Kingdom of Great Britain and Northern Ireland)

Edition

Science of the Total Environment, Amsterdam, Elsevier Science, 2016, 0048-9697

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10511 Environmental sciences

Country of publisher

Netherlands

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 4.900

RIV identification code

RIV/00216224:14310/16:00113854

Organization unit

Faculty of Science

UT WoS

000387807200141

Keywords in English

PCBs; River Thames; INCA; Sediment

Tags

Tags

International impact, Reviewed
Změněno: 11/5/2020 18:39, Mgr. Marie Šípková, DiS.

Abstract

V originále

The fate of persistent organic pollutants (POPs) in riverine environments is strongly influenced by hydrology (including flooding) and fluxes of sediments and organic carbon. Coupling multimedia fate models (MMFMs) and hydrobiogeochemical transport models offers unique opportunities for understanding the environmental behaviour of POPs. While MMFMs are widely used for simulating the fate and transport of legacy and emerging pollutants, they use greatly simplified representations of climate, hydrology and biogeochemical processes. Using additional information about weather, river flows and water chemistry in hydrobiogeochemical transport models can lead to new insights about POP behaviour in rivers. As most riverine POPs are associated with suspended sediments (SS) or dissolved organic carbon (DOC), coupled models simulating SS and DOC can provide additional insights about POPs behaviour. Coupled simulations of river flow, DOC, SS and POP dynamics offer the possibility of improved predictions of contaminant fate and fluxes by leveraging the additional information in routine water quality time series. Here, we present an application of a daily time step dynamic coupled multimedia fate and hydrobiogeochemical transport model (The Integrated Catchment (INCA) Contaminants model) to simulate the behaviour of selected PCB congeners in the River Thames (UK). This is a follow-up to an earlier study where a Level III fugacity model was used to simulate PCB behaviour in the Thames. While coupled models are more complex to apply, we show that they can lead to much better representation of POPs dynamics. The present study shows the importance of accurate sediment and organic carbon simulations to successfully predict riverine PCB transport. Furthermore, it demonstrates the important impact of short-term-weather variation on PCB movement through the environment. Specifically, it shows the consequences of the severe flooding, which occurred in early 2014 on sediment PCB concentrations in the River Thames. (C) 2016 Published by Elsevier B.V.