Contemporary 14C radiocarbon levels of oxygenated polybrominated diphenyl ethers (O-PBDEs) isolated in sponge–cyanobacteria associations
Ross, Samir J.
Letcher, Robert J.
Reddy, Christopher M.
MetadataShow full item record
KeywordO-PBDEs; Radiocarbon; Accelerator mass spectrometry; Sponges; Mariana Islands; Pacific Ocean
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.
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.
Suggested CitationPreprint: Guitart, Carlos, Slattery, Marc, Ankisetty, Sridevi, Radwan, Mohamed, Ross, Samir J., Letcher, Robert J., Reddy, Christopher M., "Contemporary 14C radiocarbon levels of oxygenated polybrominated diphenyl ethers (O-PBDEs) isolated in sponge–cyanobacteria associations", 2010-12, https://doi.org/10.1016/j.marpolbul.2010.12.022, https://hdl.handle.net/1912/4337
Showing items related by title, author, creator and subject.
Finelli, Christopher; Pawlik, Joseph; McMurray, Steven (Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: firstname.lastname@example.org, 2017-03-27)Benthic suspension feeders are an important component of aquatic ecosystems, as they mediate benthic-pelagic coupling and the flow of energy and nutrients. There is increasing evidence that sponges are particularly important ...
Sponge density and morphology and percent cover of sponges and associated community at Virgin Islands Territorial Coral Reef Monitoring Program site, pre- and post-hurricane, 2015-2017 Gochfeld, Deborah J; Brandt, Marilyn; Olson, Julie (Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: email@example.com, 2020-07-08)Sponge density and morphology and percent cover of sponges and associated benthic community determined from videos of three transects at Virgin Islands Territorial Coral Reef Monitoring Program site, pre- and post-hurricane, ...
Comment on "Radiocarbon calibration curve spanning 0 to 50,000 years BP based on paired 230Th/234U/238U and 14C dates on pristine corals" by R.G. Fairbanks et al. (Quaternary Science Reviews 24 (2005) 1781-1796), and "Extending the radiocarbon calibration beyond 26,000 years before present using fossil corals" by T.-C. Chiu et al. (Quaternary Science Reviews 24 (2005) 1797-1808). Reimer, Paula J.; Baillie, Mike G. L.; Bard, Edouard; Beck, J. Warren; Blackwell, Paul G.; Buck, Caitlin E.; Burr, George S.; Edwards, R. Lawrence; Friedrich, Michael; Guilderson, Thomas P.; Hogg, Alan G.; Hughen, Konrad A.; Kromer, Bernd; McCormac, Gerry; Manning, Sturt; Reimer, Ron W.; Southon, John R.; Stuiver, Minze; van der Plicht, Johannes; Weyhenmeyer, Constanze E. (2006-02)A recently published radiocarbon calibration curve extending to 50,000 cal BP (Fairbanks et al. 2005) is purportedly superior to that generated by the IntCal working group beyond the end of the tree-ring data at 12,400 ...