This dataset includes baseline short-lived radioisotope measurements from sediment cores collected throughout the Gulf of Mexico. Samples were analyzed by gamma spectrometry with High-Purity Germanium (HPGe) gamma-ray detectors (Canberra Coaxial Planar configuration) for total 210Pb (46.5 keV), 214Pb (295 keV and 351 keV), and 214Bi (609 keV) activities. The mean activity of the 214Pb (295 keV), 214Pb (351 keV), and 214Bi (609 keV) was used as a proxy for 226Ra activity and therefore the supported 210Pb that is produced in situ. The reported excess 210Pb (210Pbxs) is the difference of the total 210Pb and the supported 210Pb.
The purpose of this dataset was to provide Gulf of Mexico-wide baseline measurements of surface sediment Pb-210 activities in advance of future oil spills. These baseline measurements can be used in the event of future oil spills as a reference to quantitatively assess impact and recovery.
baseline, Pb210, sediment core, gamma spectrometry, short-lived radioisotope
10-24-2018 12:00 AM
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This work is licensed under a Creative Commons Public Domain Dedication 1.0 License.
Scholar Commons Citation
Schwing, Patrick and Hollander, David, "Short-lived radioisotope (excess Pb210) measurements from sediment cores collected throughout the Gulf of Mexico from 2010-11-07 to 2017-07-20" (2018). C-IMAGE data. 83.