Detection of intermittent sewage pollution in a subtropical, oligotrophic, semi-enclosed embayment system using sterol signatures in sediments

There are no files associated with this record.

Title Detection of intermittent sewage pollution in a subtropical, oligotrophic, semi-enclosed embayment system using sterol signatures in sediments
Author Pratt, Catherine; Warnken, Jan; Leeming, Rhys; Arthur, Michael; Grice, Darren
Journal Name Environmental Science and Technology
Editor Gerald Schnoor
Year Published 2007
Place of publication Washington, DC
Publisher American Chemical Society
Abstract A field study was conducted to investigate sewage inputs at popular anchorages in Moreton Bay, a sub-tropical, semi-enclosed embayment system in Southeast Queensland, Australia. Sterol biomarkers were quantified in sediments revealing low levels over a spatial and temporal scale consistent with a shallow, oligotrophic, highly dynamic, sand dominated system. Despite low concentrations (ng/g) and high variability, relevant sterol/stanol pairs remained well-correlated and were successful in identifying an unexpected once-off pollution event from a point source at Moreton Bay Island. During this incident, the main human sewage biomarker, coprostanol, was found at a concentration of 1.4 μg/g, with a coprostanol/5α-cholestanol ratio of 3.2. Other than this one incident, sterol levels were consistently low even when anchorages were at full capacity. Thus, sewage from recreational vessels was found to have very little effect on sediment quality at anchorages in Moreton Bay and Gold Coast Broadwater.
Peer Reviewed Yes
Published Yes
Publisher URI http://pubs.acs.org/journal/esthag
Alternative URI http://dx.doi.org/10.1021/es061450f
Volume 41
Issue Number 3
Page from 792
Page to 802
ISSN 0013-936X
Date Accessioned 2007-06-14
Date Available 2009-09-22T05:49:14Z
Language en_AU
Research Centre Australian Rivers Institute; Griffith Institute For Tourism; Institute for Glycomics
Faculty Faculty of Science, Environment, Engineering and Technology
Subject PRE2009-Environmental Sciences
URI http://hdl.handle.net/10072/17689
Publication Type Journal Articles (Refereed Article)
Publication Type Code c1

Show simple item record

Griffith University copyright notice