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Radioactivity exploration from the Arctic to the Antarctic. Part 4: The Arctic Ocean-91 expedition

Persson, Bertil R LU ; Holm, Elis LU ; Josefsson, Dan LU ; Roos, Per LU and Carlsson, Kjell-Åke Carlsson (2015) In Acta Scientiarum Lundensia 2015(005). p.1-14
Abstract
The Arctic Ocean expedition in 1991 with the Swedish icebreaker M/S Oden was focused on oceanography and geology. The aim of our project was exploring the activity concentrations in surface air of 7Be, 210Pb. and 210Po in the surface air, radioactive isotopes of Caesium (134Cs, 137Cs) and plutonium (239+240Pu) in seawater.

During the cruise in the Arctic Ocean during 1991-07-28 to 1991-10-04 the average activity concentrations in surface air of 7Be was 0.6±0.4 mBq.m-3 , 210Pb 46±34 microBq.m-3 and 210Po 37±23 microBq.m-3

The activity concentration of 137Cs in the surface of the Arctic Ocean was in the range of 8-12 Bq.m-3. When crossing the Nansen basin the activity concentration of 137Cs increased to about 18 Bq.m-3 at... (More)
The Arctic Ocean expedition in 1991 with the Swedish icebreaker M/S Oden was focused on oceanography and geology. The aim of our project was exploring the activity concentrations in surface air of 7Be, 210Pb. and 210Po in the surface air, radioactive isotopes of Caesium (134Cs, 137Cs) and plutonium (239+240Pu) in seawater.

During the cruise in the Arctic Ocean during 1991-07-28 to 1991-10-04 the average activity concentrations in surface air of 7Be was 0.6±0.4 mBq.m-3 , 210Pb 46±34 microBq.m-3 and 210Po 37±23 microBq.m-3

The activity concentration of 137Cs in the surface of the Arctic Ocean was in the range of 8-12 Bq.m-3. When crossing the Nansen basin the activity concentration of 137Cs increased to about 18 Bq.m-3 at 88 °N 80 °E, and there was an accumulation of 137Cs in an area around at 88 °N and 80-100 °E and locally increased activity at 83 °N 10 °E.

The 134Cs/137Cs activity ratios was about 0.02 due to the contribution mainly from Sellafield and a few percent contribution from Chernobyl. The 134Cs/137Cs activity ratio decreased to about 0.002-0.005 in areas of high 137Cs activity concentration which exclude contribution of 134Cs of nuclear reactor fuel.

The activity concentration of 239+240Pu in the surface of the Arctic Ocean was in the range of 6 - 8 mBq.m-3. But locally the activity concentration of 239+240Pu was found to be increased to 11 mBq.m-3 at 86°N 48-53°E, and to 16 mBq.m-3 at 83°N 10°E. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
seawater., 239+240Pu, 137Cs, 134Cs, Arctic Ocean, M/S Oden, 7Be, 210Pb, 210Po, surface air
in
Acta Scientiarum Lundensia
volume
2015
issue
005
pages
1 - 14
publisher
Bertil RR Persson, Medical Radiation Physics, 22185 Lund, Sweden
ISSN
1651-5013
DOI
10.13140/RG.2.1.4066.5042
language
English
LU publication?
yes
id
818c52e5-cee6-4340-9a43-c622aed05b82 (old id 8515915)
alternative location
https://www.researchgate.net/profile/Bertil_Persson
date added to LUP
2016-01-17 11:12:36
date last changed
2016-05-17 10:54:50
@article{818c52e5-cee6-4340-9a43-c622aed05b82,
  abstract     = {The Arctic Ocean expedition in 1991 with the Swedish icebreaker M/S Oden was focused on oceanography and geology. The aim of our project was exploring the activity concentrations in surface air of 7Be, 210Pb. and 210Po in the surface air, radioactive isotopes of Caesium (134Cs, 137Cs) and plutonium (239+240Pu) in seawater.<br/><br>
During the cruise in the Arctic Ocean during 1991-07-28 to 1991-10-04 the average activity concentrations in surface air of 7Be was 0.6±0.4 mBq.m-3 , 210Pb 46±34 microBq.m-3 and 210Po 37±23 microBq.m-3<br/><br>
The activity concentration of 137Cs in the surface of the Arctic Ocean was in the range of 8-12 Bq.m-3. When crossing the Nansen basin the activity concentration of 137Cs increased to about 18 Bq.m-3 at 88 °N 80 °E, and there was an accumulation of 137Cs in an area around at 88 °N and 80-100 °E and locally increased activity at 83 °N 10 °E. <br/><br>
The 134Cs/137Cs activity ratios was about 0.02 due to the contribution mainly from Sellafield and a few percent contribution from Chernobyl. The 134Cs/137Cs activity ratio decreased to about 0.002-0.005 in areas of high 137Cs activity concentration which exclude contribution of 134Cs of nuclear reactor fuel.<br/><br>
The activity concentration of 239+240Pu in the surface of the Arctic Ocean was in the range of 6 - 8 mBq.m-3. But locally the activity concentration of 239+240Pu was found to be increased to 11 mBq.m-3 at 86°N 48-53°E, and to 16 mBq.m-3 at 83°N 10°E.},
  author       = {Persson, Bertil R and Holm, Elis and Josefsson, Dan and Roos, Per and Carlsson, Kjell-Åke Carlsson},
  issn         = {1651-5013},
  keyword      = {seawater.,239+240Pu,137Cs,134Cs,Arctic Ocean,M/S Oden,7Be,210Pb,210Po,surface air},
  language     = {eng},
  number       = {005},
  pages        = {1--14},
  publisher    = {Bertil RR Persson, Medical Radiation Physics, 22185 Lund, Sweden},
  series       = {Acta Scientiarum Lundensia},
  title        = {Radioactivity exploration from the Arctic to the Antarctic. Part 4: The Arctic Ocean-91 expedition},
  url          = {http://dx.doi.org/10.13140/RG.2.1.4066.5042},
  volume       = {2015},
  year         = {2015},
}