Radiocesiums (134Cs, 137Cs) in zooplankton in the waters of Miyagi, Fukushima and Ibaraki Prefectures

Takata, Hyoe; Kusakabe, Masashi; Oikawa, Shinji

doi:10.1007/s10967-014-3504-4

Cited by 9 publications

(8 citation statements)

References 17 publications

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“…Those results suggested that the bulk of the radiocesium came from the FDNPP. FDNPP-derived 134 Cs and 137 Cs were the dominant radionuclides in eastern coastal zones of Japan after May 2011, and were accumulated in various marine organisms after the accident [14][15][16][17][18]. The concentrations in the wharf roaches in wharf roaches of St. 1-6 were comparable to those in benthic invertebrates in areas near our sampling sites [17].…”

Section: Resultsmentioning

confidence: 56%

Pollution of radiocesium and radiosilver in wharf roach (Ligia sp.) by the Fukushima Dai-ichi Nuclear Power Plant accident

Qiu

Undap

Honda

et al. 2016

J Radioanal Nucl Chem

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Radionuclide concentrations in wharf roaches inhabiting coastal areas of Honshu, Japan, were investigated in October 2011 and June 2012. Relative high concentrations of 110mAg (2.1-127 Bq kg-wet -1 ), 134 Cs (2.6-61 Bq kg-wet -1 ), and 137 Cs (3.5-92 Bq kg-wet -1 ) were detected in specimens from the eastern Honshu areas. Significantly lower 137 Cs concentrations (0.7-1.6 Bq kg-wet -1 ) were detected in specimens from western and northern Honshu. The decaycorrected 137 Cs concentration was significantly inversely correlated with the distance from the Fukushima Dai-ichi Nuclear Power Plant. Thus, wharf roach may serve as a good bioindicator for monitoring radioactive contamination of its habitats.

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Section: Resultsmentioning

confidence: 56%

Pollution of radiocesium and radiosilver in wharf roach (Ligia sp.) by the Fukushima Dai-ichi Nuclear Power Plant accident

Qiu

Undap

Honda

et al. 2016

J Radioanal Nucl Chem

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“…From May 2012 to January 2013, Takata et al 7. measured radiocesium concentrations in zooplankton collected at sampling locations identical to those used in this study; their findings suggested that the concentration of 137 Cs in ambient seawater influenced the variations of 137 Cs in zooplankton.…”

mentioning

confidence: 62%

“…3. Concentrations of 134 Cs and 137 Cs in zooplankton samples and relevant data for May 2013 to February 2015 are summarized in Table S2 (those for May 2012 to January 2013 were reported previously7). The concentrations of 137 Cs in zooplankton varied from 0.26 to 184 Bq/kg-dry during the study period (Fig.…”

Section: Resultsmentioning

confidence: 99%

“…After the FDNPP accident, elevated 137 Cs concentrations in zooplankton were observed in the western North Pacific4567. From May 2012 to January 2013, Takata et al 7.…”

mentioning

confidence: 99%

“…However, Kaeriyama et al 6. carried out observations 10 months earlier than Takata et al 7. and noted that the temporal change of 137 Cs in zooplankton was not synchronous with that of seawater.…”

mentioning

confidence: 99%

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Temporal variation of cesium isotope concentrations and atom ratios in zooplankton in the Pacific off the east coast of Japan

Ikenoue

Takata

Kusakabe

et al. 2017

Sci Rep

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After the Fukushima Daiichi Nuclear Power Plant accident in March 2011, concentrations of cesium isotopes (133Cs, 134Cs, and 137Cs) were measured in zooplankton collected in the Pacific off the east coast of Japan from May 2012 to February 2015. The time series of the data exhibited sporadic 137Cs concentration peaks in zooplankton. In addition, the atom ratio of 137Cs/133Cs in zooplankton was consistently high compared to that in ambient seawater throughout the sampling period. These phenomena cannot be explained fully by the bioaccumulation of 137Cs in zooplankton via ambient seawater intake, the inclusion of resuspended sediment in the plankton sample, or the taxonomic composition of the plankton. Autoradiography revealed highly radioactive particles within zooplankton samples, which could be the main factor underlying the sporadic appearance of high 137Cs concentrations in zooplankton as well as the higher ratio of 137Cs/133Cs in zooplankton than in seawater.

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Radioactivity impact on Japan

Povinec¹,

Hirose²,

Aoyama³

et al. 2021

Fukushima Accident

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Radiocesiums (134Cs, 137Cs) in zooplankton in the waters of Miyagi, Fukushima and Ibaraki Prefectures

Cited by 9 publications

References 17 publications

Pollution of radiocesium and radiosilver in wharf roach (Ligia sp.) by the Fukushima Dai-ichi Nuclear Power Plant accident

Pollution of radiocesium and radiosilver in wharf roach (Ligia sp.) by the Fukushima Dai-ichi Nuclear Power Plant accident

Temporal variation of cesium isotope concentrations and atom ratios in zooplankton in the Pacific off the east coast of Japan

Radioactivity impact on Japan

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