Anthropogenic radionuclides in the Japan Sea: Their distributions and transport processes

T. Ito; T. Aramaki; T. Kitamura; S. Otosaka; T. Suzuki; O. Togawa; T. Kobayashi; T. Senjyu; E. L. Chaykovskaya; E. V. Karasev; T. S. Lishavskaya; V. P. Novichkov; A. V. Tkalin; A. F. Shcherbinin; Y. N. Volkov

doi:10.1016/S0265-931X(03)00064-X

Anthropogenic radionuclides in the Japan Sea: Their distributions and transport processes

T. Ito, T. Aramaki, T. Kitamura, S. Otosaka, T. Suzuki, O. Togawa, T. Kobayashi, T. Senjyu, E. L. Chaykovskaya, E. V. Karasev, T. S. Lishavskaya, V. P. Novichkov, A. V. Tkalin, A. F. Shcherbinin, Y. N. Volkov

Division of Earth Environment Dynamics

Research output: Contribution to journal › Article › peer-review

43 Citations (Scopus)

Abstract

The anthropogenic radionuclides, ⁹⁰Sr, ¹³⁷Cs and ^239+240Pu, were measured in the water column of the Japan Sea/East Sea during 1997-2000. The vertical profiles of radionuclide concentrations showed: exponential decrease with depth for ⁹⁰Sr and ¹³⁷Cs, and surface minimum/subsurface maximum for ^239+240Pu. These results do not differ substantially from results reported previously. The area-averaged concentrations of radionuclides in the Japan Sea are higher than those found in the Northwest Pacific Ocean below surface layer showing the accumulation of the radionuclides in the deep waters in the Japan Sea. Concerning spatial distributions, the area of high ¹³⁷Cs inventory extends from the Japan Basin into the Yamato Basin. It is suggested that wintertime convection of water, occurring mainly in the Japan Basin, causes the radionuclides to sink. The nuclides then advect into the Yamato Basin after detouring around the Yamato Rise.

Original language	English
Pages (from-to)	249-267
Number of pages	19
Journal	Journal of Environmental Radioactivity
Volume	68
Issue number	3
DOIs	https://doi.org/10.1016/S0265-931X(03)00064-X
Publication status	Published - 2003

All Science Journal Classification (ASJC) codes

Environmental Chemistry
Waste Management and Disposal
Pollution
Health, Toxicology and Mutagenesis

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10.1016/S0265-931X(03)00064-X

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Ito, T., Aramaki, T., Kitamura, T., Otosaka, S., Suzuki, T., Togawa, O., Kobayashi, T., Senjyu, T., Chaykovskaya, E. L., Karasev, E. V., Lishavskaya, T. S., Novichkov, V. P., Tkalin, A. V., Shcherbinin, A. F., & Volkov, Y. N. (2003). Anthropogenic radionuclides in the Japan Sea: Their distributions and transport processes. Journal of Environmental Radioactivity, 68(3), 249-267. https://doi.org/10.1016/S0265-931X(03)00064-X

Ito, T, Aramaki, T, Kitamura, T, Otosaka, S, Suzuki, T, Togawa, O, Kobayashi, T, Senjyu, T, Chaykovskaya, EL, Karasev, EV, Lishavskaya, TS, Novichkov, VP, Tkalin, AV, Shcherbinin, AF & Volkov, YN 2003, 'Anthropogenic radionuclides in the Japan Sea: Their distributions and transport processes', Journal of Environmental Radioactivity, vol. 68, no. 3, pp. 249-267. https://doi.org/10.1016/S0265-931X(03)00064-X

@article{698a232be7e644d284d3379208153ed4,

title = "Anthropogenic radionuclides in the Japan Sea: Their distributions and transport processes",

abstract = "The anthropogenic radionuclides, 90Sr, 137Cs and 239+240Pu, were measured in the water column of the Japan Sea/East Sea during 1997-2000. The vertical profiles of radionuclide concentrations showed: exponential decrease with depth for 90Sr and 137Cs, and surface minimum/subsurface maximum for 239+240Pu. These results do not differ substantially from results reported previously. The area-averaged concentrations of radionuclides in the Japan Sea are higher than those found in the Northwest Pacific Ocean below surface layer showing the accumulation of the radionuclides in the deep waters in the Japan Sea. Concerning spatial distributions, the area of high 137Cs inventory extends from the Japan Basin into the Yamato Basin. It is suggested that wintertime convection of water, occurring mainly in the Japan Basin, causes the radionuclides to sink. The nuclides then advect into the Yamato Basin after detouring around the Yamato Rise.",

author = "T. Ito and T. Aramaki and T. Kitamura and S. Otosaka and T. Suzuki and O. Togawa and T. Kobayashi and T. Senjyu and Chaykovskaya, {E. L.} and Karasev, {E. V.} and Lishavskaya, {T. S.} and Novichkov, {V. P.} and Tkalin, {A. V.} and Shcherbinin, {A. F.} and Volkov, {Y. N.}",

note = "Funding Information: The data for radionuclide concentrations in the Japanese EEZ of the Japan Sea were collected though the entrusted researches of the Science and Technology Agency of Japan during 1996–2000. Seawater sampling in the Russian EEZ of the Japan Sea and subsequent analyses were carried out under the ISTC partner project No. 1389–99 for the year 1999 and No. 1783p-00 for the year 2000. We wish to thank the captains, officers and crew of the M/V {\textquoteleft}Wakashio-maru{\textquoteright} and the R/V {\textquoteleft}Professor Khromov{\textquoteright}. We are also indebted to Mr Shima, Mr Iseda and other staff members of the Japan Marine Science Foundation—Mutsu Marine Laboratory for their help in the sampling and analytical work. Finally, we thank the staff of the Japan Chemical Analysis Center for their radioactivity measurements and useful comments.",

year = "2003",

doi = "10.1016/S0265-931X(03)00064-X",

language = "English",

volume = "68",

pages = "249--267",

journal = "Journal of Environmental Radioactivity",

issn = "0265-931X",

publisher = "Elsevier Limited",

number = "3",

}

TY - JOUR

T1 - Anthropogenic radionuclides in the Japan Sea

T2 - Their distributions and transport processes

AU - Ito, T.

AU - Aramaki, T.

AU - Kitamura, T.

AU - Otosaka, S.

AU - Suzuki, T.

AU - Togawa, O.

AU - Kobayashi, T.

AU - Senjyu, T.

AU - Chaykovskaya, E. L.

AU - Karasev, E. V.

AU - Lishavskaya, T. S.

AU - Novichkov, V. P.

AU - Tkalin, A. V.

AU - Shcherbinin, A. F.

AU - Volkov, Y. N.

N1 - Funding Information: The data for radionuclide concentrations in the Japanese EEZ of the Japan Sea were collected though the entrusted researches of the Science and Technology Agency of Japan during 1996–2000. Seawater sampling in the Russian EEZ of the Japan Sea and subsequent analyses were carried out under the ISTC partner project No. 1389–99 for the year 1999 and No. 1783p-00 for the year 2000. We wish to thank the captains, officers and crew of the M/V ‘Wakashio-maru’ and the R/V ‘Professor Khromov’. We are also indebted to Mr Shima, Mr Iseda and other staff members of the Japan Marine Science Foundation—Mutsu Marine Laboratory for their help in the sampling and analytical work. Finally, we thank the staff of the Japan Chemical Analysis Center for their radioactivity measurements and useful comments.

PY - 2003

Y1 - 2003

N2 - The anthropogenic radionuclides, 90Sr, 137Cs and 239+240Pu, were measured in the water column of the Japan Sea/East Sea during 1997-2000. The vertical profiles of radionuclide concentrations showed: exponential decrease with depth for 90Sr and 137Cs, and surface minimum/subsurface maximum for 239+240Pu. These results do not differ substantially from results reported previously. The area-averaged concentrations of radionuclides in the Japan Sea are higher than those found in the Northwest Pacific Ocean below surface layer showing the accumulation of the radionuclides in the deep waters in the Japan Sea. Concerning spatial distributions, the area of high 137Cs inventory extends from the Japan Basin into the Yamato Basin. It is suggested that wintertime convection of water, occurring mainly in the Japan Basin, causes the radionuclides to sink. The nuclides then advect into the Yamato Basin after detouring around the Yamato Rise.

AB - The anthropogenic radionuclides, 90Sr, 137Cs and 239+240Pu, were measured in the water column of the Japan Sea/East Sea during 1997-2000. The vertical profiles of radionuclide concentrations showed: exponential decrease with depth for 90Sr and 137Cs, and surface minimum/subsurface maximum for 239+240Pu. These results do not differ substantially from results reported previously. The area-averaged concentrations of radionuclides in the Japan Sea are higher than those found in the Northwest Pacific Ocean below surface layer showing the accumulation of the radionuclides in the deep waters in the Japan Sea. Concerning spatial distributions, the area of high 137Cs inventory extends from the Japan Basin into the Yamato Basin. It is suggested that wintertime convection of water, occurring mainly in the Japan Basin, causes the radionuclides to sink. The nuclides then advect into the Yamato Basin after detouring around the Yamato Rise.

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U2 - 10.1016/S0265-931X(03)00064-X

DO - 10.1016/S0265-931X(03)00064-X

M3 - Article

C2 - 12782476

AN - SCOPUS:0037716758

SN - 0265-931X

VL - 68

SP - 249

EP - 267

JO - Journal of Environmental Radioactivity

JF - Journal of Environmental Radioactivity

IS - 3

ER -

Anthropogenic radionuclides in the Japan Sea: Their distributions and transport processes

Abstract

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