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Temporal changes in radioactive Cs concentration in sea sediment off East Japan, after the Fukushima Dai-ichi nuclear accident

Temporal changes in radioactive Cs concentration in sea sediment off East Japan, after the Fukushima Dai-ichi nuclear accident
Temporal changes in radioactive Cs concentration in sea sediment off East Japan, after the Fukushima Dai-ichi nuclear accident
Measurement techniques using a towed gamma ray
spectrometer allows to map the continuous distribution of 137Cs on
the seafloor within 30 km of the F1NPP. This study has revealed
that the temporal change in the 137Cs concentration does not show
a constant rate of decrease. Furthermore, the local 137Cs anomalies,
with concentrations of 137Cs one or two order of magnitude higher
than the surrounding seafloors, is influenced by local features of
the bathymetric feature.
Thornton, Blair
8293beb5-c083-47e3-b5f0-d9c3cee14be9
Ura, Tamaki
b8fea5ba-e731-40fd-8544-1db1ca9f356b
Asami, Mitsufumi
6cc28349-80a3-4206-a0fd-09d7273eb94f
Kamada, So.
2c260678-0588-4fba-a4b1-b7c1ea7a5f69
Ohnishi, Seiki
035c497a-ec02-4ce9-9879-a39a916b5d9a
Thornton, Blair
8293beb5-c083-47e3-b5f0-d9c3cee14be9
Ura, Tamaki
b8fea5ba-e731-40fd-8544-1db1ca9f356b
Asami, Mitsufumi
6cc28349-80a3-4206-a0fd-09d7273eb94f
Kamada, So.
2c260678-0588-4fba-a4b1-b7c1ea7a5f69
Ohnishi, Seiki
035c497a-ec02-4ce9-9879-a39a916b5d9a

Thornton, Blair, Ura, Tamaki, Asami, Mitsufumi, Kamada, So. and Ohnishi, Seiki (2019) Temporal changes in radioactive Cs concentration in sea sediment off East Japan, after the Fukushima Dai-ichi nuclear accident. Underwater Technology 2019, Taiwan. 16 - 19 Apr 2019. 5 pp . (doi:10.1109/UT.2019.8734371).

Record type: Conference or Workshop Item (Paper)

Abstract

Measurement techniques using a towed gamma ray
spectrometer allows to map the continuous distribution of 137Cs on
the seafloor within 30 km of the F1NPP. This study has revealed
that the temporal change in the 137Cs concentration does not show
a constant rate of decrease. Furthermore, the local 137Cs anomalies,
with concentrations of 137Cs one or two order of magnitude higher
than the surrounding seafloors, is influenced by local features of
the bathymetric feature.

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Published date: 2019
Venue - Dates: Underwater Technology 2019, Taiwan, 2019-04-16 - 2019-04-19

Identifiers

Local EPrints ID: 431884
URI: http://eprints.soton.ac.uk/id/eprint/431884
PURE UUID: 048521af-e2e6-4d1d-81f9-e648b4c8a834

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Date deposited: 20 Jun 2019 16:30
Last modified: 24 Mar 2020 17:51

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Contributors

Author: Blair Thornton
Author: Tamaki Ura
Author: Mitsufumi Asami
Author: So. Kamada
Author: Seiki Ohnishi

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