Determination of deployment specific chemical uptake rates for SPMD and PDMS using a passive flow monitor

O'Brien, Dominique, Komarova, Tatiana, and Mueller, Jochen F. (2012) Determination of deployment specific chemical uptake rates for SPMD and PDMS using a passive flow monitor. Marine Pollution Bulletin, 64 (5). pp. 1005-1011.

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Abstract

Passive sampling techniques facilitate the time-integrated measurement of pollutant concentrations through the use of a selective receiving phase. Accurate quantification using passive sampling devices rely on the implementation of methods that will negate the effects of environmental factors (flow, temperature, etc.) or that will allow the calculation of the chemical specific rates of uptake (R-s) into the passive sampler employed. We have applied an in situ calibration technique based on the dissolution of gypsum to measure the average water velocity to which a sampler has been exposed. We demonstrate that the loss of gypsum from the passive flow monitor (PFM) can be applied to predict changes in R-s dependent on flow when using the absorbent SPMD (semipermeable membrane device) and PDMS (polydimethyl siloxan) passive samplers. The application of the PFM will enhance the accuracy of measurements made when calculating and reporting environmental pollutant concentrations using a passive sampling device.

Item ID: 35566
Item Type: Article (Research - C1)
ISSN: 1879-3363
Keywords: herbicide, passive sampling, SPMD, PDMS, flow, calibration
Funders: Australian Research Council (ARC), University of Queensland (UQ), Queensland Health Forensic and Scientific Services (QHFSS)
Projects and Grants: ARC DP0556205
Date Deposited: 01 Oct 2014 15:49
FoR Codes: 05 ENVIRONMENTAL SCIENCES > 0502 Environmental Science and Management > 050206 Environmental Monitoring @ 100%
SEO Codes: 96 ENVIRONMENT > 9605 Ecosystem Assessment and Management > 960506 Ecosystem Assessment and Management of Fresh, Ground and Surface Water Environments @ 50%
96 ENVIRONMENT > 9611 Physical and Chemical Conditions of Water > 961103 Physical and Chemical Conditions of Water in Fresh, Ground and Surface Water Environments (excl. Urban and @ 50%
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