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Research article - Peer-reviewed, 2011

Mobile passive samplers: Concept for a novel mode of exposure

Allan Ian J, Nilsson Hans, Tjensvoll Ingrid, Bradshaw Clare, Naes Kristoffer


Integrative passive sampling with devices such as semipermeable membrane devices generally relies on rigs for month-long static exposures in water. We evaluate here whether mobile exposures of passive samplers can provide reliable estimates of dissolved contaminant concentrations. Mobile exposures were obtained by towing samplers fastened to the end of a benthic trawl net. Significant and reproducible absorption of polycyclic aromatic hydrocarbons during 5 h-long deployments was made possible by high sampling rates resulting from high water turbulences during towing at 1.2-1.5 knots. Sampling rates (72-215 L d(-1)) estimated from the dissipation of performance reference compounds were supported by in situ calibration with samplers exposed for a 30 days in the vicinity of the test site. Higher fluoranthene and pyrene absorption in samplers exposed to the trawling-induced sediment plume could be attributed to desorption from re-suspended sediments. This mode of exposure has the potential to be used in monitoring programmes. (C) 2011 Elsevier Ltd. All rights reserved

Published in

Environmental Pollution
2011, volume: 159, number: 10, pages: 2393-2397

Authors' information

Allan, Ian J
Swedish University of Agricultural Sciences, Department of Aquatic Resources
Tjensvoll, Ingrid
Bradshaw, Clare
Naes, Kristoffer

Sustainable Development Goals

SDG6 Clean water and sanitation
SDG14 Life below water
SDG3 Good health and well-being

UKÄ Subject classification

Environmental Sciences related to Agriculture and Land-use

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