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

Bertil R Persson; Elis Holm; Dan Josefsson; Per Roos; Kjell-Åke Carlsson Carlsson

doi:10.13140/RG.2.1.4066.5042

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

Bertil R Persson, Elis Holm, Dan Josefsson, Per Roos, Kjell-Åke Carlsson Carlsson

Medical Radiation Physics, Lund

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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 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.

Original language	English
Pages (from-to)	1-14
Journal	Acta Scientiarum Lundensia
Volume	2015
Issue number	005
DOIs	https://doi.org/10.13140/RG.2.1.4066.5042
Publication status	Published - 2015

Subject classification (UKÄ)

Occupational Health and Environmental Health

Free keywords

seawater.
239+240Pu
137Cs
134Cs
Arctic Ocean
M/S Oden
7Be
210Pb
210Po
surface air

Access to Document

10.13140/RG.2.1.4066.5042

ASL_2015_005_Part_4_AO91

https://www.researchgate.net/profile/Bertil_Persson

4 Article
1 Book chapter

Radioactivity Exploration from the Arctic to Antarctica. Part 5: The Tundra-94 expedition
Persson, B. R., Holm, E., Josefsson, D. & Carlsson, K.-Å., 2015, In: Acta Scientiarum Lundensia. 2015, 006, p. 1-20
Research output: Contribution to journal › Article › peer-review

Open Access
File
125 Downloads (Pure)
Radioactivity Exploration from the Arctic to the Antarctic. Part 1: Introduction
Persson, B. R., Holm, E. & Carlsson, K.-Å., 2015, Radioactivity Exploration from the Arctic to the Antarctic.. Persson, B. R. (ed.). Bertil RR Persson, Medical Radiation Physics, 22185 Lund, Sweden, Vol. 2015-002. p. 1-4
Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research › peer-review

File
Radioactivity Exploration from the Arctic to the Antarctic. Part 2. Ymer-80 Expedition
Persson, B. R., Holm, E., Carlsson, K.-Å., Samuelsson, C., Hallstadius, L., Hedvall, R. & Forkman, B., 2015, In: Acta Scientiarum Lundensia. 2015, 003, p. 1-20
Research output: Contribution to journal › Article › peer-review

Open Access
File
192 Downloads (Pure)

Cite this

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

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 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.",

keywords = "seawater., 239+240Pu, 137Cs, 134Cs, Arctic Ocean, M/S Oden, 7Be, 210Pb, 210Po, surface air",

author = "Persson, \{Bertil R\} and Elis Holm and Dan Josefsson and Per Roos and Carlsson, \{Kjell-{\AA}ke Carlsson\}",

year = "2015",

doi = "10.13140/RG.2.1.4066.5042",

language = "English",

volume = "2015",

pages = "1--14",

journal = "Acta Scientiarum Lundensia",

issn = "1651-5013",

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T1 - Radioactivity exploration from the Arctic to the Antarctic. Part 4: The Arctic Ocean-91 expedition

AU - Persson, Bertil R

AU - Holm, Elis

AU - Josefsson, Dan

AU - Roos, Per

AU - Carlsson, Kjell-Åke Carlsson

PY - 2015

Y1 - 2015

N2 - 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.

AB - 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.

KW - seawater.

KW - 239+240Pu

KW - 137Cs

KW - 134Cs

KW - Arctic Ocean

KW - M/S Oden

KW - 7Be

KW - 210Pb

KW - 210Po

KW - surface air

U2 - 10.13140/RG.2.1.4066.5042

DO - 10.13140/RG.2.1.4066.5042

M3 - Article

SN - 1651-5013

VL - 2015

SP - 1

EP - 14

JO - Acta Scientiarum Lundensia

JF - Acta Scientiarum Lundensia

IS - 005

ER -

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

Abstract

Subject classification (UKÄ)

Free keywords

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Research output

Radioactivity Exploration from the Arctic to Antarctica. Part 5: The Tundra-94 expedition

Radioactivity Exploration from the Arctic to the Antarctic. Part 1: Introduction

Radioactivity Exploration from the Arctic to the Antarctic. Part 2. Ymer-80 Expedition

Cite this