Similarities and differences of 137 Cs distributions in the marine environments of the Baltic and Black seas and off the Fukushima Dai-ichi nuclear power plant in model assessments.

Autor: Maderich V; Institute of Mathematical Machine and System Problems, Kiev, Ukraine. Electronic address: vladmad@gmail.com., Bezhenar R; Institute of Mathematical Machine and System Problems, Kiev, Ukraine., Tateda Y; Nuclear Risk Research Center, Central Research Institute of Electric Power Industry, Chiba, Japan., Aoyama M; Institute of Environmental Radioactivity, Fukushima University, Fukushima, Japan., Tsumune D; Nuclear Risk Research Center, Central Research Institute of Electric Power Industry, Chiba, Japan.
Jazyk: angličtina
Zdroj: Marine pollution bulletin [Mar Pollut Bull] 2018 Oct; Vol. 135, pp. 895-906. Date of Electronic Publication: 2018 Aug 15.
DOI: 10.1016/j.marpolbul.2018.08.026
Abstrakt: The compartment model POSEIDON-R with an embedded food web model was used to assess 137 Cs distributions in the Baltic and Black seas and off the Pacific coast of Japan during 1945-2020 due to the weapon testing and accidents at the Chernobyl and Fukushima Dai-ichi nuclear power plants. The results of simulations conducted with generic parameters agreed well with measurements of 137 Cs concentrations in the water, bottom sediments, and in fish. In the Black and Baltic seas, salinity variations affected the transfer of 137 Cs through the food web. The contamination of pelagic fish followed the water contamination with some delay, whereas demersal fish depuration was found to be related to decreasing 137 Cs concentrations in the upper sediment layer. On the Pacific shelf off Japan, intensive currents and eddies caused the simulated depuration rates in fish to be one-two orders of magnitude larger than those in the semi-enclosed Black and Baltic seas.
(Copyright © 2018 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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