Prussian Blue to reduce radiocaesium accumulation in fish in lakes affected by the Chornobyl accident.

Autor: Pavlenko P; Ukrainian Institute of Agricultural Radiology (UIAR) of National University of Life and Environment Sciences of Ukraine, Kyiv, Ukraine. Electronic address: polina.pavlenko97@gmail.com., Kashparova O; Ukrainian Institute of Agricultural Radiology (UIAR) of National University of Life and Environment Sciences of Ukraine, Kyiv, Ukraine; Center for Environmental Radioactivity (CERAD), Faculty of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, Ås, Norway., Teien HC; Center for Environmental Radioactivity (CERAD), Faculty of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, Ås, Norway., Salbu B; Ukrainian Institute of Agricultural Radiology (UIAR) of National University of Life and Environment Sciences of Ukraine, Kyiv, Ukraine; Center for Environmental Radioactivity (CERAD), Faculty of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, Ås, Norway., Eide DM; Center for Environmental Radioactivity (CERAD), Faculty of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, Ås, Norway; Norwegian Institute of Public Health, Lovisenberggata 8, 0456, Oslo, Norway., Oughton DH; Center for Environmental Radioactivity (CERAD), Faculty of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, Ås, Norway., Hrechaniuk M; Ukrainian Institute of Agricultural Radiology (UIAR) of National University of Life and Environment Sciences of Ukraine, Kyiv, Ukraine., Levchuk S; Ukrainian Institute of Agricultural Radiology (UIAR) of National University of Life and Environment Sciences of Ukraine, Kyiv, Ukraine., Lazarev M; Ukrainian Institute of Agricultural Radiology (UIAR) of National University of Life and Environment Sciences of Ukraine, Kyiv, Ukraine., Kashparov V; Ukrainian Institute of Agricultural Radiology (UIAR) of National University of Life and Environment Sciences of Ukraine, Kyiv, Ukraine; Center for Environmental Radioactivity (CERAD), Faculty of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, Ås, Norway.
Jazyk: angličtina
Zdroj: Journal of environmental radioactivity [J Environ Radioact] 2023 Dec; Vol. 270, pp. 107282. Date of Electronic Publication: 2023 Aug 22.
DOI: 10.1016/j.jenvrad.2023.107282
Abstrakt: Fish in lakes situated within the Chornobyl exclusion zone have been highly contaminated since the accident and have not been utilized as food for humans. In the present study, field experiments with less-contaminated silver Prussian carp (Carassius gibelio (Bloch, 1782)) caged in contaminated lake within the Chornobyl exclusion zone was performed from June to October 2021 to investigate the effectiveness of clean feed containing potassium ferric hexacyanoferrate (KFCF) KFe[Fe(CN) 6 ], a kind of Prussian Blue as a countermeasure to reduce 137 Cs accumulation in fish. The addition of clean feed containing 0.1% or 1% KFCF resulted respectively in 2.4 ± 0.4 or 4.2 ± 0.7 times lower activity concentration of 137 Cs in muscle tissue of the carp compared to control fish with clean feed without KFCF and in 7-16 or 12-27 times lower activities compared to fish without additional clean feeding. After 18 weeks exposure, 137 Cs levels in all the caged fish except for the control group were below the European permissible level (600 Bq kg -1 ) for consumption. In contrast, KFCF did not affect the intake of 90 Sr in fish, although additional feed increased the growth rate and thereby accumulation in bone tissues. Hence, the use of clean feed containing KFCF is judged to be an effective and inexpensive countermeasure to reduce the 137 Cs contamination of edible fish muscles.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2023 The Authors. Published by Elsevier Ltd.. All rights reserved.)
Databáze: MEDLINE
Externí odkaz: