期刊
MARINE POLLUTION BULLETIN
卷 137, 期 -, 页码 81-90出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.marpolbul.2018.09.032
关键词
Halogenated natural products; Great Barrier Reef; Normanby Island; Water concentrations; Gas chromatography with high resolution mass spectrometry
资金
- GO8-DAAD (German Academic Exchange Service)
Polydimethylsiloxane (PDMS) based passive water samplers deployed at Normanby Island, Great Barrier Reef (Australia) from 2007 to 2013 were analyzed for halogenated natural products (HNPs). Altogether, 38 samples, typically deployed for 30 days, were studied. Five HNPs (Q1, 2'-MeO-BDE 68, BC-10, 2,4-dibromoanisole and 2,4,6-tribromoanisole) were detected in all samples. Most samples (> 90%) featured 2,2'-diMeO-BB 80, 6-MeO-BDE 47, 2',6-diMeO-BDE 68 and 2,4-dibromophenol. In addition, tetrabromo-N-methylpyrrole (TBMP) was detected in similar to 80% and Cl-6-DBP in similar to 30% of the samples. Estimated time weighted maximum water concentrations were > 150 pg Q1 and 60 pg 2'-MeO-BDE 68 per L seawater. Typically, the concentrations were varying from year to year. Moreover, time weighted average water concentration estimates did not reveal consistent maximum trend levels within a given year. Additional screening analysis via GC/MS indicated the presence of several polyhalogenated 1'-methy1-1,2'-bipyrroles (PMBPs), 1,1'-dimethyl-2,2'-bipyrroles (PDBPs), and 1-methylpyrroles (PMPs) along with four brominated N-methylindoles and several other polyhalogenated compounds at Normanby Island.
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