Monitoring PAHs in the Brisbane River and Moreton Bay, Australia, using semipermeable membrane devices and EROD activity in yellowfin bream, Acanthopagrus australis

Shaw, M., Tibbetts, I. R. and Müller, J. F. (2004) Monitoring PAHs in the Brisbane River and Moreton Bay, Australia, using semipermeable membrane devices and EROD activity in yellowfin bream, Acanthopagrus australis. Chemosphere, 56 3: 237-246. doi:10.1016/j.chemosphere.2004.03.003


Author Shaw, M.
Tibbetts, I. R.
Müller, J. F.
Title Monitoring PAHs in the Brisbane River and Moreton Bay, Australia, using semipermeable membrane devices and EROD activity in yellowfin bream, Acanthopagrus australis
Journal name Chemosphere   Check publisher's open access policy
ISSN 0045-6535
Publication date 2004-01-01
Sub-type Article (original research)
DOI 10.1016/j.chemosphere.2004.03.003
Volume 56
Issue 3
Start page 237
End page 246
Total pages 10
Place of publication Oxford
Publisher Pergamon-Elsevier Science Ltd
Language eng
Subject C1
321299 Public Health and Health Services not elsewhere classified
730210 Environmental health
Abstract Two water quality monitoring strategies designed to sample hydrophobic organic contaminants have been applied and evaluated across an expected concentration gradient in PAHs in the Moreton region. Semipermeable membrane devices (SPMDs) that sequester contaminants via passive diffusion across a membrane were used to evaluate the concentration of PAHs at four and five sites in spring and summer 2001/2002, respectively. In addition, induction of hepatic cytochrome P4501, EROD activity, in yellowfin bream, Acanthopagrus australis, captured in the vicinity of SPMD sampling sites following deployment in summer was used as a biomarker of exposure to PAHs and related chemicals. SPMDs identified a clear and reproducible gradient in PAH contamination with levels increasing from east to west in Moreton Bay and upstream in the Brisbane River. The highest PAH concentrations expressed as B(a)P-toxicity equivalents (TEQs) were found in urban areas, which were also furthest upstream and experienced the least flushing. Cytochrome P4501 induction in A. australis was similar at all sites. The absence of clear trends in EROD activity may be attributable to factors not measured in this study or variable residency time of A. australis in contaminated areas. It is also possible that fish in the Moreton region are displaying enzymatic adaptation, which has been reported previously for fish subjected to chronic exposure to organic contaminants. These potential interferences complicate interpretation of EROD activity from feral biota. It is, therefore, suggested that future monitoring combine the two methods by applying passive sampler extracts to in vitro EROD assays. (C) 2004 Elsevier Ltd. All rights reserved.
Keyword Environmental Sciences
Water Quality
Organic Contaminants
Passive Sampling
Fish
Biomarker Response
Cytochrome P450
Polycyclic Aromatic-hydrocarbons
Fundulus-heteroclitus
Puget-sound
Water
Induction
Queensland
Migrations
Washington
Movements
Exposure
Q-Index Code C1

 
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Created: Wed, 15 Aug 2007, 14:49:18 EST