Published 2019 | Version v1
Journal article Metadata-only

The relationship between distribution of 129I concentration and water masses off the Pacific Coast in Aomori Prefecture, Japan

Creators

  • 1. Japan Marine Science Foundation, Mutsu, Aomori (Japan)

Description

We observed the distribution of 129I concentration off the Pacific coast in Aomori Prefecture from 2004 to 2007 and discussed the mean concentration of 129I in each water mass and origin of 129I concentration. The mean concentration of 129I in each water mass ranged from 14x106 to 19x106 atoms/L, which showed different between water masses. Considering global fallout level of 129I and amount of 129I produced by cosmic rays, 129I concentration in each water mass off the Pacific coast in Aomori Prefecture might be effected by the atmospheric release from European nuclear fuel reprocessing plants. The 129I concentration in each water mass seemed to reflect the differences in impact of westerly winds and air masses at the area that each water mass are formed. (author)

Availability note (English)

Available from DOI: https://doi.org/10.3769/radioisotopes.68.115

Abstract (Japanese)

2004 年~2007 年における青森県太平洋沿岸の129I 濃度の分布を観測し,水塊毎の129I 平均濃度やその起源について検討した。水塊毎の129I 濃度の平均値は(14~19)×106 atoms/L であり,水塊間でわずかに異なっていた。各水塊の129I 濃度は,129I のグローバルフォールアウトレベルや宇宙線などによる生成量を考慮すると,欧州の再処理工場からの大気放出の影響が大きいと考えられ,それぞれの水塊が形成される海域の偏西風や気団の影響の違いを反映していると考えられる。(著者)

Additional details

Additional titles

Original title (Japanese)
青森県太平洋沿岸における129I濃度分布と水塊との関係

Identifiers

DOI
10.3769/radioisotopes.68.115;

Publishing Information

Journal Title
Radioisotopes (Online)
Journal Volume
68
Journal Issue
3
Journal Page Range
p. 115-123
ISSN
1884-4111

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
52103126
Subject category
S54: ENVIRONMENTAL SCIENCES;
Descriptors DEI
COASTAL REGIONS; CONCENTRATION RATIO; DOSE LIMITS; EFFECTIVE RADIATION DOSES; FUEL REPROCESSING PLANTS; GLOBAL FALLOUT; IODINE 127; IODINE 129; ISOTOPE RATIO; MASS SPECTROMETERS; RADIATION DOSE DISTRIBUTIONS; RADIATION MONITORING; SALINITY; SEAWATER; TANDEM ELECTROSTATIC ACCELERATORS
Descriptors DEC
ACCELERATORS; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; DIMENSIONLESS NUMBERS; DOSES; ELECTROSTATIC ACCELERATORS; FALLOUT; HYDROGEN COMPOUNDS; INTERMEDIATE MASS NUCLEI; INTERNAL CONVERSION RADIOISOTOPES; IODINE ISOTOPES; ISOTOPES; MEASURING INSTRUMENTS; MONITORING; NUCLEAR FACILITIES; NUCLEI; ODD-EVEN NUCLEI; OXYGEN COMPOUNDS; RADIATION DOSES; RADIOISOTOPES; SAFETY STANDARDS; SPECTROMETERS; STABLE ISOTOPES; STANDARDS; WATER; YEARS LIVING RADIOISOTOPES

Optional Information

Notes
16 refs., 4 figs., 6 tabs.