Determination of halogenated natural products in passive samplers deployed along the Great Barrier Reef, Queensland/Australia

Vetter, Walter, Haase-Aschoff, Paul, Rosenfelder, Natalie, Komarova, Tatiana and Mueller, Jochen F. (2009) Determination of halogenated natural products in passive samplers deployed along the Great Barrier Reef, Queensland/Australia. Environmental Science & Technology (Washington), 43 16: 6131-6137. doi:10.1021/es900928m

Author Vetter, Walter
Haase-Aschoff, Paul
Rosenfelder, Natalie
Komarova, Tatiana
Mueller, Jochen F.
Title Determination of halogenated natural products in passive samplers deployed along the Great Barrier Reef, Queensland/Australia
Journal name Environmental Science & Technology (Washington)   Check publisher's open access policy
ISSN 0013-936X
Publication date 2009
Year available 2009
Sub-type Article (original research)
DOI 10.1021/es900928m
Volume 43
Issue 16
Start page 6131
End page 6137
Total pages 7
Editor Jerald Schooner
Place of publication US
Publisher American Chemical Society ( ACS Publications)
Collection year 2010
Language eng
Subject 960699 Environmental and Natural Resource Evaluation not elsewhere classified
050206 Environmental Monitoring
Abstract Halogenated natural products (HNPs) have been increasingly reported to occur in marine wildlife from all oceans. Several HNPs, such as 2,3,3′,4,4′,5,5′-heptachloro-1′-methyl-1,2′-bipyrrole (Q1) and 4,6-dibromo-2-(2′,4′-dibromo)phenoxyanisole (2′-MeO-BDE 68 or BC-2), were detected at particularly high concentrations in dolphins from Queensland/Australia. About half of the coastline of Queensland (2500 km) is covered by the Great Barrier Reef, a rich ecosystem hosting a huge variety of species, many of which are known to produce natural compounds. In this study, semipermeable membrane devices (SPMDs) were deployed as passive samplers for about 30 days at 12 marine and 2 nonmarine sites (i.e., rivers) along the Great Barrier Reef as part of a routine monitoring program during November 2007 and May 2008. Q1 and 2′-MeO-BDE 68 were detected at the marine sites with frequencies of about 65% but not in any sample from the two rivers. Further HNPs (2,4,6-tribromophenol, TBP; 2,4,6-tribromoanisole, TBA; 2,2′-dimethoxy-3,3′5,5′-tetrabromobiphenyl, 2,2′-diMeO-BB 80 or BC-1; 3,5-dibromo-2-(2′,4′-dibromo)phenoxyanisole, 6-MeO-BDE 47 or BC-3; and 3,5-dibromo-2-(3′,5′-dibromo,2′-methoxy)phenoxyanisole, 2′,6-diMeO-BDE 68 or BC-11) were detected as well with frequencies of 18−97% in the marine samples, but no polybrominated flame retardants were detected. The highest amount of a single HNP, 2.3 μg/SPMD, was determined for TBP, which had a frequency of detection of only 46%. The maximum (average) amount in the SPMDs from marine sites was 44 ng (12 ng) for Q1 and 115 ng (20 ng) for 2′-MeO-BDE 68. A first order kinetic model was used to estimate concentrations of the HNPs in the water phase. Based on the depuration of performance reference compounds obtained at one of the sites, we assumed a sampling rate of 16 L/day. We used this sampling rate to estimate that the highest and average available concentrations of Q1 in the water during the deployment of the SPMD were 97 and 25 pg/L, respectively. The estimated maximum water concentrations of 2′-MeO-BDE 68, 2,2′-diMeO-BB 80, 6-MeO-BDE 47, and 2′,6-diMeO-BDE 68 were on average 2−5.5 fold higher than that of Q1. The results confirm that the HNPs are produced throughout the Great Barrier Reef, which appears to be a significant source of these compounds.
Keyword SPMDs
Passive sampler
Q-Index Code C1
Q-Index Status Confirmed Code

Document type: Journal Article
Sub-type: Article (original research)
Collections: 2010 Higher Education Research Data Collection
National Research Centre for Environmental Toxicology Publications
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Created: Thu, 11 Mar 2010, 16:32:41 EST by Christie Gallen on behalf of National Res Centre For Environmental Toxicology