Study on the behavior of129I in the terrestrial environment

Katagiri, K.; Shimizue, T.; Akatsu, Yasuo; Ishiguro, Hideharu

doi:10.1007/bf02063619

Cited by 7 publications

(1 citation statement)

References 8 publications

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“…As regards the most significant of the short-lived radionuclides, 131,133 I, the main contamination route for vegetation is by air. Therefore, until recently, relatively little attention was paid to studies of soil-to-plant transfer of radioiodine (Prister et al, 1977;Tikhomirov et al, 1980;Tikhomirov, 1983;Kashin, 1987), and iodine's behaviour in soil (Prister et al, 1977;Prokhorov et al, 1978;Katagiri et al, 1997;Sheppard et al, 1992Sheppard et al, , 1995Muramatsu and Yoshida, 1996;Ashworth et al, 2003). Understanding its behaviour is important in order to understand not only the radioecological effects, but also iodine's radiogeochemistry since this element is among the most important of the microelements necessary to organisms (Whitehead, 1984;Evans and Hammad, 1995).…”

Section: Introductionmentioning

confidence: 98%

Soil-to-plant halogens transfer studies

Kashparov¹,

Colle

Zvarich³

et al. 2005

Journal of Environmental Radioactivity

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Section: Introductionmentioning

confidence: 98%

Soil-to-plant halogens transfer studies

Kashparov¹,

Colle

Zvarich³

et al. 2005

Journal of Environmental Radioactivity

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Distribution coefficients (K d) of stable iodine in estuarine and coastal regions, Japan, and their relationship to salinity and organic carbon in sediments

Takata

Zheng²,

Tagami³

et al. 2012

Environ Monit Assess

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The sediment-water distribution coefficient, (K(d)), is one of the most important parameters in radionuclide assessment models. In this study, we determined K ds of stable iodine (I) in estuarine and coastal regions. We studied 16 estuarine and coastal regions of Japan and obtained I data on water and sediments. Data on salinity, pH, dissolved organic carbon and dissolved oxygen in water, and organic carbon (OC) in sediments were also obtained as estuarine variables. Determined (K(d))S of I in the Sagami River estuary decreased along the salinity gradient (salinity range, 0.1-33.8), indicating that salinity is one of the important factors controlling the (K(d)) values; however, when the (K(d)) values were compared among all the estuaries, the difference between minimum and maximum (K(d)) values varied by about two orders of magnitude in a narrow salinity range of 30.0-34.4. A significant correlation between (K(d)) value and OC content in sediments was observed in all the stations with a salinity of ≥ 30 except for stations in the Ishikari and Onga River estuaries. The exceptions are probably due to different sources of the sediments, which are explained by the results of relatively low I/OC ratios in sediments in those two estuaries, compared to the other estuaries. Thus, OC in sediments as well as salinity may be responsible for the variation of (K(d))S of I in the estuarine and coastal regions.

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