http://lod.bco-dmo.org/id/dataset/3967
eng; USA
utf8
dataset
Highest level of data collection, from a common set of sensors or instrumentation, usually within the same research project
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
2013-06-19
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Speciation of I129 and I127 from water samples collected from cruise KOK1108 in the Western Equatorial Pacific and Kuroshio Extension (Fukushima Radionuclide Levels project)
2013-08-27
publication
2013-08-27
revision
BCO-DMO Linked Data URI
2013-08-27
creation
http://lod.bco-dmo.org/id/dataset/3967
Xiaolin Hou
Technical University of Denmark
principalInvestigator
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
publisher
Cite this dataset as: Hou, X. (2013) Speciation of I129 and I127 from water samples collected from cruise KOK1108 in the Western Equatorial Pacific and Kuroshio Extension (Fukushima Radionuclide Levels project). Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 27 August 2013) Version Date 2013-08-27 [if applicable, indicate subset used]. http://lod.bco-dmo.org/id/dataset/3967 [access date]
Speciation of I129 and I127 from Fukushima water samples Dataset Description: <p>Speciation of the radionuclide Iodine-129 (I129) and Iodine-127 (I127)</p>
<p><strong>Relevant References:</strong></p>
<p><strong><a href="http://data.bco-dmo.org/Fukushima/XiaolinHou/es304460k.pdf">Iodine-129 in Seawater Offshore Fukushima: Distribution, Inorganic Speciation, Sources, and Budget</a></strong></p> Methods and Sampling: <p>Seawater samples were collected at multiples depths in Niskin bottles at 4 stations ranging in distance from 40 to 530 km from Fukushima Dai-ichi nuclear power plant to be analyzed for levels of I129 and I127. The samples were stored in dark at ambient temperature before analysis.</p>
<p>0.5-1 L filtered seawater was transferred to a beaker; 125I solution (about 100 Bq, in NaI form) was added to the seawater.&nbsp; The prepared solution was then loaded to an anion exchange column (AG1-×4 resin, NO3- form, 1.0 cm in diameter and 15 cm length), the column was washed with 50 mL 0.2 mol/L NaNO3, the effluent and wash were combined for iodate separation. The column was then eluted with 150 mL 5% NaClO and then 50 mL of 3M HNO3, and the eluate was combined for iodide separation.</p>
<p>1.0 mL of solution of iodide fraction, iodate fraction and original seawater were taken into a vial for 127I measurement using ICP-MS. The remaining solution of iodate fraction (Efluent + washes of 0.2 mol/L NaNO3) or 200-500 mL of original seawater samples (for total 129I) was transferred to a beaker; 125I tracer (200 Bq), 0.5 mg 127I carrier, and 1M NaHSO3 solution were added. The solution was adjusted to pH 1-2 using 3 mol/L HNO3 to convert all iodine to iodide. The solution was then transferred to a separation funnel, 50 mL CHCl3 was added and then 1.0 mol/L NaNO2 solution was added to oxidize iodide to I2 to be extracted to CHCl3 phase by shaking. I2 is then back-extracted to the water phase by add 5 mmol/L NaHSO3 solution. This extraction and back-extraction steps were repeated once. The back-extracted aqueous phase was used for preparation of AgI target.</p>
<p>The remaining solution of iodide fraction was transferred to a separatory funnel. After addition of 0.5 mg of 127I carrier, 3.0 mol/L HNO3 was added to adjust pH1-2. 50 mL of CHCl3 and 5 mL of 1 mol/L NH2OH×HCl solution were added to reduce iodate to I2 to be extracted to CHCl3 phase by shaking.&nbsp; I2 in CHCl3 phase was then back-extracted using 5mM NaHSO3 solution.</p>
<p>0.5 mL of 1.0 mol/L AgNO3 solution was added to the back-extracted aqueous phases to precipitate iodide as AgI, which was separated using a centrifuge. The resulting AgI precipitate was dried at 70 °C and used for AMS measurement of 129I. 125I in the precipitate was counted using a NaI gamma-detector to monitor the chemical yield of iodine in the separation. Before extraction, the eluate of iodide from the anion exchange column was also measured for 125I by gamma-detector to monitor chemical recovery of iodide during column separation. This is used to correct 127Iodide and 129Iodide concentrations in seawater.</p>
<p>An ICP-MS system (X Series II, Thermo, Waltham, MA) equipped with an Xs- skimmer cone and standard concentric nebulizer was used for the measurement 127I. 1.0 mL of the separated fractions or the original seawater was diluted to 20 mL using 1% ammonium solution, and spiked with Cs+ (to 2.0 ppb) as internal standard. The detection limit of the method for 127I was calculated as 3 SD of the procedure blank to be 0.03 ng/mL.</p>
<p>The 129I/127I ratios in total iodine samples were determined by AMS at the Vienna Environmental Research Accelerator (VERA) and the University of Arizona AMS Laboratory, both using a 3MV National Electrostatics Corporation AMS. The 129I/127I ratios in iodide and iodate samples were measured using the 3 MV AMS facility at the Xi’an AMS center. The machine backgrounds of the 129I/127I ratio are around (2-4)×10-14.&nbsp; The blanks using the same procedure as the samples were also prepared; the highest measured 129I/127I ratio is 1´10-13, which is significantly lower than measured 129I/127I ratios in the samples.</p>
completed
Xiaolin Hou
Technical University of Denmark
Copenhagen
Denmark
xiho@dtu.dk
pointOfContact
asNeeded
Dataset Version: 27 August 2013
Unknown
sta
event
longitude
latitude
date
date_local
time_local
bot_Nis
depth
press
temp
potemp
sigma_0
sal_cal
O2_cal
sal_nis
O2_nis
I129_e07atL
I129_e07atL_err
I127_ugL
I127_ugL_err
I127_Iide_ugL
I127_Iide_ugL_err
I129_Iide_e07atL
I129_Iide_e07atL_err
I127_IO3_ugL
I127_IO3_ugL_err
I129_IO3_e07atL
I129_IO3_e07atL_err
Mass Spectrometer
Niskin bottle
theme
None, User defined
station number
event
longitude
latitude
date
date_local
time_local
Niskin bottle number
depth
water pressure
water temperature at measurement depth
potential temperature
sigma-theta
sal_cal
O2 calibrated
sal_nis
O2_nis
No BCO-DMO term
featureType
BCO-DMO Standard Parameters
Mass Spectrometer
Niskin bottle
instrument
BCO-DMO Standard Instruments
KOK1108
service
Deployment Activity
otherRestrictions
otherRestrictions
Access Constraints: none. Use Constraints: Please follow guidelines at: http://www.bco-dmo.org/terms-use Distribution liability: Under no circumstances shall BCO-DMO be liable for any direct, incidental, special, consequential, indirect, or punitive damages that result from the use of, or the inability to use, the materials in this data submission. If you are dissatisfied with any materials in this data submission your sole and exclusive remedy is to discontinue use.
Establishing Radionuclide Levels in the Atlantic and Pacific Oceans Originating from the Fukushima Daiichi Nuclear Power Facility
http://www.whoi.edu/page.do?pid=67796
Establishing Radionuclide Levels in the Atlantic and Pacific Oceans Originating from the Fukushima Daiichi Nuclear Power Facility
<p>The March 11, 2011 earthquake in Japan and the subsequent tsunami damaged and disrupted cooling systems at the Fukushima Daiichi nuclear power facility causing contamination of land and seas surrounding the site, as well as food supplies and drinking water. Small but measurable quantities of radioactivity have been detected in the atmosphere over the United States, including aerosol samples collected at the Woods Hole Oceanographic Institution, where I-131 was seen to increase to detectable levels as of March 21-22, 2011.</p>
<p>With major funding from the Moore Foundation, as well as a contribution from the National Science Foundation through a 2011 Grant for Rapid Response Research (RAPID) and support from the Woods Hole Oceanographic Institution, collaborating investigators from the United States, Japan, Spain, Monaco, and the United Kingdom were able to obtain samples off Japan for an early assessment of impacts.</p>
<p>From June 4 through June 19, 2011, a research cruise was carried out aboard the RV Kaimikai-O-Kanaloa, a research vessel operated by the University of Hawaii. During the cruise, hundreds of samples were collected in an area off the coast of Japan as close as 30 kilometers from the Fukushima Nuclear Power Plant and extending as far out as 600 kilometers off shore. The essential components of the program include: radionuclide measurements of water and particles; a radioecological study of biota, especially species at the base of the food chain and key fish species and a physical oceanographic study to characterize transport and water masses. A baseline radionuclide data set for the Atlantic and Pacific was obtained along an east to west network of sampling stations. Three hundred sampling events took place at thirty major stations for a total of more than 1500 samples. Along with 41 CTD stations, bottle samples of salinity, oxygen, radionuclides, and particulates were taken to depths of about 1000 meters. <a href="http://data.bco-dmo.org/Fukushima/Fukushima_radionuclide_sampling_summary.pdf">A list of the radionuclides sampled and a sampling summary map</a> is available. One hundred net tows resulted in approximately fifty pounds of biological samples, including plankton and small fish. Daily samples of aerosol were also taken.</p>
<p>Early investigation following an accidental release of man-made radionuclides is key to understanding the magnitude of the release and the relationship to public health issues The research results also set the stage for the use of the longer lived radionuclides as tracers in subsequent studies by the community to understand ocean processes.</p>
Fukushima Radionuclide Levels
largerWorkCitation
project
eng; USA
oceans
2013-08-27
Northwest Pacific Ocean
0
BCO-DMO catalogue of parameters from Speciation of I129 and I127 from water samples collected from cruise KOK1108 in the Western Equatorial Pacific and Kuroshio Extension (Fukushima Radionuclide Levels project)
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
http://lod.bco-dmo.org/id/dataset-parameter/35381.rdf
Name: sta
Units: integer
Description: <p>station id</p>
http://lod.bco-dmo.org/id/dataset-parameter/35382.rdf
Name: event
Units: dimensionless
Description: <p>event-id</p>
http://lod.bco-dmo.org/id/dataset-parameter/35383.rdf
Name: longitude
Units: decimal degrees
Description: <p>longitude </p>
http://lod.bco-dmo.org/id/dataset-parameter/35384.rdf
Name: latitude
Units: decimal degrees
Description: <p>latitude</p>
http://lod.bco-dmo.org/id/dataset-parameter/35385.rdf
Name: date
Units: YYYYMMDD
Description: <p>Date of sample</p>
http://lod.bco-dmo.org/id/dataset-parameter/35386.rdf
Name: date_local
Units: YYYYMMDD
Description: <p>Date (local) of sample</p>
http://lod.bco-dmo.org/id/dataset-parameter/35387.rdf
Name: time_local
Units: hhmm
Description: <p>time (local) of cast</p>
http://lod.bco-dmo.org/id/dataset-parameter/35388.rdf
Name: bot_Nis
Units: integer
Description: <p>Niskin bottle number</p>
http://lod.bco-dmo.org/id/dataset-parameter/35389.rdf
Name: depth
Units: meters
Description: <p>depth</p>
http://lod.bco-dmo.org/id/dataset-parameter/35390.rdf
Name: press
Units: decibars
Description: <p>pressure</p>
http://lod.bco-dmo.org/id/dataset-parameter/35391.rdf
Name: temp
Units: degrees C
Description: <p>temperature</p>
http://lod.bco-dmo.org/id/dataset-parameter/35392.rdf
Name: potemp
Units: degrees C
Description: <p>potential temperature</p>
http://lod.bco-dmo.org/id/dataset-parameter/35393.rdf
Name: sigma_0
Units: kilograms/meter^3
Description: <p>potential density</p>
http://lod.bco-dmo.org/id/dataset-parameter/35394.rdf
Name: sal_cal
Units: PSU
Description: <p>salinity calibrated to water sample salinity</p>
http://lod.bco-dmo.org/id/dataset-parameter/35395.rdf
Name: O2_cal
Units: milliliters/liter
Description: <p>dissolved oxygen concentration calibrated to water samples of O2</p>
http://lod.bco-dmo.org/id/dataset-parameter/35396.rdf
Name: sal_nis
Units: PSU
Description: <p>salinity from water samples</p>
http://lod.bco-dmo.org/id/dataset-parameter/35397.rdf
Name: O2_nis
Units: milliliters/liter
Description: <p>dissolved oxygen concentration from water samples</p>
http://lod.bco-dmo.org/id/dataset-parameter/35398.rdf
Name: I129_e07atL
Units: 10^7 atoms/liter
Description: <p>Iodine-129 total concentration</p>
http://lod.bco-dmo.org/id/dataset-parameter/35399.rdf
Name: I129_e07atL_err
Units: 10^7 atoms/liter
Description: <p>Iodine-129 standard error</p>
http://lod.bco-dmo.org/id/dataset-parameter/35400.rdf
Name: I127_ugL
Units: micrograms/liter
Description: <p>Iodine-127</p>
http://lod.bco-dmo.org/id/dataset-parameter/35401.rdf
Name: I127_ugL_err
Units: micrograms/liter
Description: <p>Iodine-127 error</p>
http://lod.bco-dmo.org/id/dataset-parameter/35402.rdf
Name: I127_Iide_ugL
Units: micrograms/liter
Description: <p>Iodide in Iodine-127</p>
http://lod.bco-dmo.org/id/dataset-parameter/35403.rdf
Name: I127_Iide_ugL_err
Units: micrograms/liter
Description: <p>Iodide in Iodine-127 error</p>
http://lod.bco-dmo.org/id/dataset-parameter/35404.rdf
Name: I129_Iide_e07atL
Units: 10^7 atoms/liter
Description: <p>Iodide in Iodine-129</p>
http://lod.bco-dmo.org/id/dataset-parameter/35405.rdf
Name: I129_Iide_e07atL_err
Units: 10^7 atoms/liter
Description: <p>Iodide in Iodine-129 error</p>
http://lod.bco-dmo.org/id/dataset-parameter/35406.rdf
Name: I127_IO3_ugL
Units: micrograms/liter
Description: <p>Iodate in Iodine-127</p>
http://lod.bco-dmo.org/id/dataset-parameter/35407.rdf
Name: I127_IO3_ugL_err
Units: micrograms/liter
Description: <p>Iodate in Iodine-127</p>
http://lod.bco-dmo.org/id/dataset-parameter/35408.rdf
Name: I129_IO3_e07atL
Units: 10^7 atoms/liter
Description: <p>Iodate in Iodine-129</p>
http://lod.bco-dmo.org/id/dataset-parameter/35409.rdf
Name: I129_IO3_e07atL_err
Units: 10^7 atoms/liter
Description: <p>Iodate in Iodine-127 error</p>
GB/NERC/BODC > British Oceanographic Data Centre, Natural Environment Research Council, United Kingdom
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
3274
https://datadocs.bco-dmo.org/file/xooy0KQFBkrJqB/I129_I127.csv
I129_I127.csv
Primary data file for dataset ID 3967
download
https://osprey.bco-dmo.org/dataset/3967/data/download
download
onLine
dataset
<p>Seawater samples were collected at multiples depths in Niskin bottles at 4 stations ranging in distance from 40 to 530 km from Fukushima Dai-ichi nuclear power plant to be analyzed for levels of I129 and I127. The samples were stored in dark at ambient temperature before analysis.</p>
<p>0.5-1 L filtered seawater was transferred to a beaker; 125I solution (about 100 Bq, in NaI form) was added to the seawater.&nbsp; The prepared solution was then loaded to an anion exchange column (AG1-×4 resin, NO3- form, 1.0 cm in diameter and 15 cm length), the column was washed with 50 mL 0.2 mol/L NaNO3, the effluent and wash were combined for iodate separation. The column was then eluted with 150 mL 5% NaClO and then 50 mL of 3M HNO3, and the eluate was combined for iodide separation.</p>
<p>1.0 mL of solution of iodide fraction, iodate fraction and original seawater were taken into a vial for 127I measurement using ICP-MS. The remaining solution of iodate fraction (Efluent + washes of 0.2 mol/L NaNO3) or 200-500 mL of original seawater samples (for total 129I) was transferred to a beaker; 125I tracer (200 Bq), 0.5 mg 127I carrier, and 1M NaHSO3 solution were added. The solution was adjusted to pH 1-2 using 3 mol/L HNO3 to convert all iodine to iodide. The solution was then transferred to a separation funnel, 50 mL CHCl3 was added and then 1.0 mol/L NaNO2 solution was added to oxidize iodide to I2 to be extracted to CHCl3 phase by shaking. I2 is then back-extracted to the water phase by add 5 mmol/L NaHSO3 solution. This extraction and back-extraction steps were repeated once. The back-extracted aqueous phase was used for preparation of AgI target.</p>
<p>The remaining solution of iodide fraction was transferred to a separatory funnel. After addition of 0.5 mg of 127I carrier, 3.0 mol/L HNO3 was added to adjust pH1-2. 50 mL of CHCl3 and 5 mL of 1 mol/L NH2OH×HCl solution were added to reduce iodate to I2 to be extracted to CHCl3 phase by shaking.&nbsp; I2 in CHCl3 phase was then back-extracted using 5mM NaHSO3 solution.</p>
<p>0.5 mL of 1.0 mol/L AgNO3 solution was added to the back-extracted aqueous phases to precipitate iodide as AgI, which was separated using a centrifuge. The resulting AgI precipitate was dried at 70 °C and used for AMS measurement of 129I. 125I in the precipitate was counted using a NaI gamma-detector to monitor the chemical yield of iodine in the separation. Before extraction, the eluate of iodide from the anion exchange column was also measured for 125I by gamma-detector to monitor chemical recovery of iodide during column separation. This is used to correct 127Iodide and 129Iodide concentrations in seawater.</p>
<p>An ICP-MS system (X Series II, Thermo, Waltham, MA) equipped with an Xs- skimmer cone and standard concentric nebulizer was used for the measurement 127I. 1.0 mL of the separated fractions or the original seawater was diluted to 20 mL using 1% ammonium solution, and spiked with Cs+ (to 2.0 ppb) as internal standard. The detection limit of the method for 127I was calculated as 3 SD of the procedure blank to be 0.03 ng/mL.</p>
<p>The 129I/127I ratios in total iodine samples were determined by AMS at the Vienna Environmental Research Accelerator (VERA) and the University of Arizona AMS Laboratory, both using a 3MV National Electrostatics Corporation AMS. The 129I/127I ratios in iodide and iodate samples were measured using the 3 MV AMS facility at the Xi’an AMS center. The machine backgrounds of the 129I/127I ratio are around (2-4)×10-14.&nbsp; The blanks using the same procedure as the samples were also prepared; the highest measured 129I/127I ratio is 1´10-13, which is significantly lower than measured 129I/127I ratios in the samples.</p>
Specified by the Principal Investigator(s)
<p>Anion exchange chromatography was used for separation of iodide, iodate, and total inorganic iodine from seawater.</p>
<p>Data flagged as "nd" indicates “not measured”, because not enough sample water was available.&gt;</p>
Specified by the Principal Investigator(s)
asNeeded
7.x-1.1
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
Mass Spectrometer
Mass Spectrometer
PI Supplied Instrument Name: Mass Spectrometer Instrument Name: Mass Spectrometer Instrument Short Name:Mass Spec Instrument Description: General term for instruments used to measure the mass-to-charge ratio of ions; generally used to find the composition of a sample by generating a mass spectrum representing the masses of sample components. Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/LAB16/
Niskin bottle
Niskin bottle
PI Supplied Instrument Name: Niskin bottle Instrument Name: Niskin bottle Instrument Short Name:Niskin bottle Instrument Description: A Niskin bottle (a next generation water sampler based on the Nansen bottle) is a cylindrical, non-metallic water collection device with stoppers at both ends. The bottles can be attached individually on a hydrowire or deployed in 12, 24, or 36 bottle Rosette systems mounted on a frame and combined with a CTD. Niskin bottles are used to collect discrete water samples for a range of measurements including pigments, nutrients, plankton, etc. Community Standard Description: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0412/
Cruise: KOK1108
KOK1108
R/V Ka`imikai-O-Kanaloa
Community Standard Description
International Council for the Exploration of the Sea
R/V Ka`imikai-O-Kanaloa
vessel
KOK1108
Kenneth O. Buesseler
Woods Hole Oceanographic Institution
http://bcodata.whoi.edu/Fukushima/Fukushima_KOK1108_dailyBlog.pdf
Report describing KOK1108
R/V Ka`imikai-O-Kanaloa
Community Standard Description
International Council for the Exploration of the Sea
R/V Ka`imikai-O-Kanaloa
vessel