Contemporary 14C radiocarbon levels of oxygenated polybrominated diphenyl ethers (O-PBDEs) isolated in sponge–cyanobacteria associations Guitart, Carlos Slattery, Marc Ankisetty, Sridevi Radwan, Mohamed Ross, Samir J. Letcher, Robert J. Reddy, Christopher M. 2011-02-11T18:41:28Z 2011-02-11T18:41:28Z 2010-12
dc.description Author Posting. © The Author(s), 2010. This is the author's version of the work. It is posted here by permission of Elsevier B.V. for personal use, not for redistribution. The definitive version was published in Marine Pollution Bulletin 62 (2011): 631-636, doi:10.1016/j.marpolbul.2010.12.022. en_US
dc.description.abstract Considerable debate surrounds the sources of oxygenated polybrominated diphenyl ethers (O-PBDEs) in wildlife as to whether they are naturally produced or result from anthropogenic industrial activities. Natural radiocarbon (14C) abundance has proven to be a powerful tool to address this problem as recently biosynthesized compounds contain contemporary (i.e. modern) amounts of atmospheric radiocarbon; whereas industrial chemicals, mostly produced from fossil fuels, contain no detectable 14C. However, few compounds isolated from organisms have been analyzed for their radiocarbon content. To provide a baseline, we analyzed the 14C content of four OPBDEs. These compounds, 6-OH-BDE47, 2’-OH-BDE68, 2’,6-diOH-BDE159, and a recently identified compound, 2’-MeO-6-OH-BDE120, were isolated from the tropical marine sponges Dysidea granulosa and Lendenfeldia dendyi. The modern radiocarbon content of their chemical structures (i.e. diphenyl ethers, C12H22O) indicates that they are naturally produced. This adds to a growing baseline on, at least, the sources of these unusual compounds. en_US
dc.description.sponsorship The project described was supported in part by Grant Numbers NA16RU1496 and NA06OAR4300227 from the National Oceanic and Atmospheric Administration, and Grant Number 5P20RR021929 from the National Center for Research Resources. en_US
dc.format.mimetype application/pdf
dc.language.iso en en_US
dc.subject O-PBDEs en_US
dc.subject Radiocarbon en_US
dc.subject Accelerator mass spectrometry en_US
dc.subject Sponges en_US
dc.subject Mariana Islands en_US
dc.subject Pacific Ocean en_US
dc.title Contemporary 14C radiocarbon levels of oxygenated polybrominated diphenyl ethers (O-PBDEs) isolated in sponge–cyanobacteria associations en_US
dc.type Preprint en_US
dspace.entity.type Publication
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