Evaluation of sequentially-coupled POP fluxes estimated from simultaneous measurements in multiple compartments of an air–water–sediment system

Bulk atmospheric deposition fluxes, air–water exchange fluxes, particle settling fluxes out of the upper water column, sediment trap fluxes in deep waters, and sediment burial fluxes of polychlorinated biphenyls (PCBs) and polycyclic aromatic hydrocarbons (PAHs) were simultaneously measured in the K...

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Veröffentlicht in:Environmental pollution (1987) 2004-01, Vol.128 (1), p.85-97
Hauptverfasser: Palm, Anna, Cousins, Ian, Gustafsson, Örjan, Axelman, Johan, Grunder, Kerstin, Broman, Dag, Brorström-Lundén, Eva
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container_end_page 97
container_issue 1
container_start_page 85
container_title Environmental pollution (1987)
container_volume 128
creator Palm, Anna
Cousins, Ian
Gustafsson, Örjan
Axelman, Johan
Grunder, Kerstin
Broman, Dag
Brorström-Lundén, Eva
description Bulk atmospheric deposition fluxes, air–water exchange fluxes, particle settling fluxes out of the upper water column, sediment trap fluxes in deep waters, and sediment burial fluxes of polychlorinated biphenyls (PCBs) and polycyclic aromatic hydrocarbons (PAHs) were simultaneously measured in the Koster Fjord, eastern Skagerak, on the Swedish west coast. The aim of the study was to compare the magnitude and direction of the compound fluxes in the system in order to diagnose key fate processes. The PCB and PAH fluxes via net atmospheric deposition, settling particles out of the surface and through deep waters, as well as into the accreting underlying sediments were shown to be remarkably similar, agreeing within a factor of a few for any given target compound. Fluxes of all PCB and PAH target compounds remained fairly constant with water column depth. Thus there was no evidence for net desorption from sinking particles. The net unidirectional and near balancing of vertical fluxes suggests a net transport of PCBs and PAHs from the atmosphere to the continental shelf sediments in the Koster Fjord, which is consistent with the hypothesis that the shelf sediments are important sinks for these compounds. The magnitude and direction of vertical fluxes of PCBs and PAHs in a coupled air–water–sediment system were simultaneously measured and compared.
doi_str_mv 10.1016/j.envpol.2003.08.023
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ispartof Environmental pollution (1987), 2004-01, Vol.128 (1), p.85-97
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subjects Air
Air Pollution - analysis
Applied sciences
Atmospheric pollution
Environmental Monitoring - methods
Environmental Pollutants - analysis
Exact sciences and technology
Flux
Geologic Sediments - chemistry
Natural water pollution
Oceans and Seas
PAH
PCB
Pollutants physicochemistry study: properties, effects, reactions, transport and distribution
Pollution
Polychlorinated Biphenyls - analysis
Polycyclic Aromatic Hydrocarbons - analysis
Seawaters, estuaries
Sediment
Sink
Sweden
Water
Water Pollution, Chemical - analysis
Water treatment and pollution
title Evaluation of sequentially-coupled POP fluxes estimated from simultaneous measurements in multiple compartments of an air–water–sediment system
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