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Brown J, Teien HC, Thørring H, Skipperud L, Hosseini A, Lind OC, Oughton D, Salbu B. Transfer of radionuclides through ecological systems: Lessons learned from 10 years of research within CERAD CoE. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 940:173503. [PMID: 38821276 DOI: 10.1016/j.scitotenv.2024.173503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 04/30/2024] [Accepted: 05/23/2024] [Indexed: 06/02/2024]
Abstract
Norway's Centre of Excellence for Environmental Radioactivity (CERAD) research programme included studies on transfer of radionuclides in various ecosystems within the context of environmental risk assessment. This article provides highlights from 10 years of research within this topic and summarises lessons learnt from the process. The scope has been extensive, involving laboratory-based experiments, field studies and the implementation of transfer models quantifying radionuclide uptake directly from the surrounding environment and via food chains. Field studies have had a global span and have, inter alia, covered sites contaminated with radionuclides associated with particles, ranging from nanoparticles to fragments, due to nuclear accidents (e.g., Chornobyl and Fukushima accidents) along with sites having enhanced levels of naturally occurring radioactive materials (e.g., Fen Complex in Norway and Taboshar in Tajikistan). Focus has been put on speciation and kinetics in determining radionuclide behavior and fate as well as on the influence of environmental factors that are potentially critical for the transfer of radionuclides. In particular, seasonal factors have been shown to greatly affect the dynamics of 137Cs and 90Sr bioaccumulation and loss in freshwater fish. The work has led to the collation of organism-specific (i) parameters important for kinetic models, i.e., uptake and depuration rates, and (ii) steady-state concentration ratios, CRs, where the use of stable analogue CRs as proxies for radionuclides has been brought into question. Dynamic models have been developed and applied for radiocaesium transfer to reindeer, radionuclide transfer in Arctic marine systems, transfer to fish via water and feed and commonly used agricultural food-chain transfer models applied in the context of nuclear emergency preparedness. The CERAD programme should contribute substantially to the scientific community's understanding of radionuclide transfer in environmental systems.
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Affiliation(s)
- Justin Brown
- DSA - Norwegian Radiation and Nuclear Safety Authority, Grini Næringspark 13, 1361 Østerås, Norway; Center for Environmental Radioactivity (CERAD) CoE, Norwegian University of Life Sciences, P.O. Box 5003, N-1432 Ås, Norway.
| | - Hans Christian Teien
- Faculty of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, P.O. Box 5003, N-1432 Ås, Norway; Center for Environmental Radioactivity (CERAD) CoE, Norwegian University of Life Sciences, P.O. Box 5003, N-1432 Ås, Norway
| | - Håvard Thørring
- DSA - Norwegian Radiation and Nuclear Safety Authority, Grini Næringspark 13, 1361 Østerås, Norway; Center for Environmental Radioactivity (CERAD) CoE, Norwegian University of Life Sciences, P.O. Box 5003, N-1432 Ås, Norway
| | - Lindis Skipperud
- Faculty of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, P.O. Box 5003, N-1432 Ås, Norway; Center for Environmental Radioactivity (CERAD) CoE, Norwegian University of Life Sciences, P.O. Box 5003, N-1432 Ås, Norway
| | - Ali Hosseini
- DSA - Norwegian Radiation and Nuclear Safety Authority, Grini Næringspark 13, 1361 Østerås, Norway; Center for Environmental Radioactivity (CERAD) CoE, Norwegian University of Life Sciences, P.O. Box 5003, N-1432 Ås, Norway
| | - Ole Christian Lind
- Faculty of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, P.O. Box 5003, N-1432 Ås, Norway; Center for Environmental Radioactivity (CERAD) CoE, Norwegian University of Life Sciences, P.O. Box 5003, N-1432 Ås, Norway
| | - Deborah Oughton
- Faculty of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, P.O. Box 5003, N-1432 Ås, Norway; Center for Environmental Radioactivity (CERAD) CoE, Norwegian University of Life Sciences, P.O. Box 5003, N-1432 Ås, Norway
| | - Brit Salbu
- Faculty of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, P.O. Box 5003, N-1432 Ås, Norway; Center for Environmental Radioactivity (CERAD) CoE, Norwegian University of Life Sciences, P.O. Box 5003, N-1432 Ås, Norway
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2
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Yue S, Wang R, Huang C, Qiao Y, Shen Z, Wei Y, Li Z. Toxicokinetics of selenate in earthworm sub-tissues and potential bio-accessibility assessment of earthworm-derived selenium. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 281:116643. [PMID: 38925033 DOI: 10.1016/j.ecoenv.2024.116643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 06/16/2024] [Accepted: 06/23/2024] [Indexed: 06/28/2024]
Abstract
Selenium (Se) pollution is mainly caused by anthropogenic activities, and the resulting biosecurity concerns have garnered significant attention in recent years. Using one-compartmental toxicokinetic (TK) modelling, this study explored the kinetic absorption, sub-tissue distribution, and elimination processes of the main Se species (selenate, Se(VI)) in the cultivated aerobic soil of the earthworm Eisenia fetida. The bio-accessibility of earthworm-derived Se was assessed using an in vitro simulated gastrointestinal digestion test to evaluate its potential trophic risk. The results demonstrated that Se accumulated in the pre-clitellum (PC) and total tissues (TT) of earthworms in a time- and dose-dependent manner. The highest Se levels in the PC, post-clitellum (PoC), and TT were 70.54, 57.93, and 64.26 mg/kg during the uptake phase, respectively. The kinetic Se contents in the earthworms PC and TT were consistent with the TK model but not with PoC. The earthworm TT exhibited a faster uptake (Kus = 0.83-1.02 mg/kg/day) and elimination rate of Se (Kee = 0.044-0.049 mg/kg/day), as well as a shorter half-life time (LT1/2 = 15.88-14.22 days) than PC at low soil Se levels (≤5 mg/kg). Conversely, the opposite trend was observed with higher Se concentrations (10 and 20 mg/kg). These results are likely attributable to the tissue specificity and concentration of the toxicant. Earthworms PC and TT exhibited a higher kinetic Se accumulation factor (BAFk) than steady-state BAF (BAFss), with values ranging from 8 to 24 and 3-13, respectively. Furthermore, the bio-accessibility of earthworm-derived Se to poultry ranged from 66.25 % to 84.35 %. As earthworms are at the bottom of the terrestrial food chain, the high bio-accessibility of earthworm-derived Se poses a potential risk to predators. This study offers data support and a theoretical foundation for understanding the biological footprint of soil Se and its toxicological impacts and ecological hazards.
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Affiliation(s)
- Shizhong Yue
- Shandong Key Laboratory of Biophysics, Institute of Biophysics, Dezhou University, Dezhou 253023, PR China; International Joint Laboratory of Agricultural Food Science and Technology of Universities of Shandong, Dezhou University, Dezhou 253023, PR China
| | - Ruiping Wang
- Shandong Key Laboratory of Biophysics, Institute of Biophysics, Dezhou University, Dezhou 253023, PR China; International Joint Laboratory of Agricultural Food Science and Technology of Universities of Shandong, Dezhou University, Dezhou 253023, PR China.
| | - Caide Huang
- College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, PR China; School of Environment, Tsinghua University, Beijing 100084, PR China
| | - Yuhui Qiao
- College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, PR China
| | - Zhiqiang Shen
- College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, PR China
| | - Yunwei Wei
- Shandong Key Laboratory of Biophysics, Institute of Biophysics, Dezhou University, Dezhou 253023, PR China
| | - Zhenghua Li
- Shandong Key Laboratory of Biophysics, Institute of Biophysics, Dezhou University, Dezhou 253023, PR China
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Alonzo F, Trijau M, Plaire D, Billoir E. A toxicokinetic-toxicodynamic model with a transgenerational damage to explain toxicity changes over generations (in Daphnia magna exposed to depleted uranium). THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 914:169845. [PMID: 38190898 DOI: 10.1016/j.scitotenv.2023.169845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 12/15/2023] [Accepted: 12/30/2023] [Indexed: 01/10/2024]
Affiliation(s)
- Frédéric Alonzo
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSE-ENV, SERPEN, LECO, Cadarache, Saint-Paul-lèz-Durance, France.
| | - Marie Trijau
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSE-ENV, SERPEN, LECO, Cadarache, Saint-Paul-lèz-Durance, France; Ibacon GmbH, Roßdorf, Germany
| | - Delphine Plaire
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSE-ENV, SERPEN, LECO, Cadarache, Saint-Paul-lèz-Durance, France
| | - Elise Billoir
- Université de Lorraine, CNRS, LIEC, F-57000 Metz, France
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Fan G, Lin Q, Lin J, Xia M, Chen S, Luo J, Zou J, Hong Z, Xu K. Effective photocatalytic inactivation of Microcystis aeruginosa by Ag 3VO 4/BiVO 4 heterojunction under visible light. CHEMOSPHERE 2024; 347:140710. [PMID: 37979804 DOI: 10.1016/j.chemosphere.2023.140710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2023] [Revised: 10/09/2023] [Accepted: 11/12/2023] [Indexed: 11/20/2023]
Abstract
In recent years, photocatalytic technology has been increasingly used for the treatment of algal blooms in water bodies due to its high efficiency and environmental advantages. However, conventional semiconductor materials suffer from high electron-hole recombination rate, low carrier mobility and weak surface adsorption ability, which made their photocatalytic performance limited. Therefore, the photocatalytic performance of the composites can be improved by coupling another semiconductor material to form a heterojunction to accelerate electron transfer. In this study, a novel composite Ag3VO4/BiVO4 (ABV) photocatalyst was successfully prepared by in-situ deposition method for the photocatalytic inactivation of Microcystis aeruginosa (M. aeruginosa) under visible light. The photocatalyst showed excellent photocatalytic activity, and the degradation rate of M. aeruginosa chlorophyll a was up to 99.8% within 4 h under visible light. During the photocatalytic degradation, the morphology of algae cells, the permeability of cell membrane, the organic matter inside and outside the cells, the antioxidant system and the soluble protein were seriously damaged. Moreover, three cycle experiments showed that the prepared ABV photocatalyst had high reusability. Finally, a possible mechanism of M. aeruginosa inactivation was proposed. In general, the synthesized ABV photocatalyst can effectively inactivate cyanobacteria under visible light and provided a new method for M. aeruginosa removal in water.
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Affiliation(s)
- Gongduan Fan
- College of Civil Engineering, Fuzhou University, 350116 Fujian, China; Fujian Provincial Key Laboratory of Electrochemical Energy Storage Materials, Fuzhou University, 350002, Fujian, China
| | - Qiuan Lin
- College of Civil Engineering, Fuzhou University, 350116 Fujian, China
| | - Jiuhong Lin
- College of Civil Engineering, Fuzhou University, 350116 Fujian, China
| | - Mingqian Xia
- College of Civil Engineering, Fuzhou University, 350116 Fujian, China.
| | - Shoubin Chen
- Fuzhou City Construction Design & Research Institute Co. Ltd., 350001, Fujian, China
| | - Jing Luo
- Fujian Jinhuang Environmental Sci-Tech Co., Ltd., 350002 Fujian, China
| | - Jianyong Zou
- Anhui Urban Construction Design Institute Co. Ltd., 230051, Anhui, China
| | - Zhanglin Hong
- China Construction Third Bureau First Engineering Co. Ltd., 430040, Hubei, China
| | - Kaiqin Xu
- College of Civil Engineering, Fuzhou University, 350116 Fujian, China
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Byrnes I, Rossbach LM, Brede DA, Grolimund D, Ferreira Sanchez D, Nuyts G, Čuba V, Reinoso-Maset E, Salbu B, Janssens K, Oughton D, Scheibener S, Teien HC, Lind OC. Synchrotron-Based X-ray Fluorescence Imaging Elucidates Uranium Toxicokinetics in Daphnia magna. ACS NANO 2023; 17:5296-5305. [PMID: 36921214 PMCID: PMC10062025 DOI: 10.1021/acsnano.2c06111] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Accepted: 03/13/2023] [Indexed: 06/17/2023]
Abstract
A combination of synchrotron-based elemental analysis and acute toxicity tests was used to investigate the biodistribution and adverse effects in Daphnia magna exposed to uranium nanoparticle (UNP, 3-5 nm) suspensions or to uranium reference (Uref) solutions. Speciation analysis revealed similar size distributions between exposures, and toxicity tests showed comparable acute effects (UNP LC50: 402 μg L-1 [336-484], Uref LC50: 268 μg L-1 [229-315]). However, the uranium body burden was 3- to 5-fold greater in UNP-exposed daphnids, and analysis of survival as a function of body burden revealed a ∼5-fold higher specific toxicity from the Uref exposure. High-resolution X-ray fluorescence elemental maps of intact, whole daphnids from sublethal, acute exposures of both treatments revealed high uranium accumulation onto the gills (epipodites) as well as within the hepatic ceca and the intestinal lumen. Uranium uptake into the hemolymph circulatory system was inferred from signals observed in organs such as the heart and the maxillary gland. The substantial uptake in the maxillary gland and the associated nephridium suggests that these organs play a role in uranium removal from the hemolymph and subsequent excretion. Uranium was also observed associated with the embryos and the remnants of the chorion, suggesting uptake in the offspring. The identification of target organs and tissues is of major importance to the understanding of uranium and UNP toxicity and exposure characterization that should ultimately contribute to reducing uncertainties in related environmental impact and risk assessments.
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Affiliation(s)
- Ian Byrnes
- Centre
for Environmental Radioactivity (CERAD), Faculty of Environmental
Sciences and Natural Resource Management, Norwegian University of Life Sciences, P.O. Box 5003, 1433 Ås, Norway
| | - Lisa Magdalena Rossbach
- Centre
for Environmental Radioactivity (CERAD), Faculty of Environmental
Sciences and Natural Resource Management, Norwegian University of Life Sciences, P.O. Box 5003, 1433 Ås, Norway
| | - Dag Anders Brede
- Centre
for Environmental Radioactivity (CERAD), Faculty of Environmental
Sciences and Natural Resource Management, Norwegian University of Life Sciences, P.O. Box 5003, 1433 Ås, Norway
| | - Daniel Grolimund
- Swiss
Light Source, Paul Scherrer Institute (PSI), 5232 Villigen, Switzerland
| | | | - Gert Nuyts
- AXIS
Group, NANOlab Center of Excellence, Department of Physics, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium
| | - Václav Čuba
- Faculty
of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague, Brehova 7, 166 36 Prague 1, Czech Republic
| | - Estela Reinoso-Maset
- Centre
for Environmental Radioactivity (CERAD), Faculty of Environmental
Sciences and Natural Resource Management, Norwegian University of Life Sciences, P.O. Box 5003, 1433 Ås, Norway
| | - Brit Salbu
- Centre
for Environmental Radioactivity (CERAD), Faculty of Environmental
Sciences and Natural Resource Management, Norwegian University of Life Sciences, P.O. Box 5003, 1433 Ås, Norway
| | - Koen Janssens
- AXIS
Group, NANOlab Center of Excellence, Department of Physics, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium
| | - Deborah Oughton
- Centre
for Environmental Radioactivity (CERAD), Faculty of Environmental
Sciences and Natural Resource Management, Norwegian University of Life Sciences, P.O. Box 5003, 1433 Ås, Norway
| | - Shane Scheibener
- Centre
for Environmental Radioactivity (CERAD), Faculty of Environmental
Sciences and Natural Resource Management, Norwegian University of Life Sciences, P.O. Box 5003, 1433 Ås, Norway
| | - Hans-Christian Teien
- Centre
for Environmental Radioactivity (CERAD), Faculty of Environmental
Sciences and Natural Resource Management, Norwegian University of Life Sciences, P.O. Box 5003, 1433 Ås, Norway
| | - Ole Christian Lind
- Centre
for Environmental Radioactivity (CERAD), Faculty of Environmental
Sciences and Natural Resource Management, Norwegian University of Life Sciences, P.O. Box 5003, 1433 Ås, Norway
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Wang R, Yue S, Huang C, Shen Z, Qiao Y, Charles S, Yu J, Cao Z, Li Z, Li Z. Uptake, distribution, and elimination of selenite in earthworm Eisenia fetida at sublethal concentrations based on toxicokinetic model. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 858:159632. [PMID: 36283532 DOI: 10.1016/j.scitotenv.2022.159632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 09/28/2022] [Accepted: 10/18/2022] [Indexed: 06/16/2023]
Abstract
Natural and anthropogenic causes have promoted the rapid increase in environmental selenium (Se) levels, and the complex Se metabolism and dynamic in organisms make it challenging to evaluate the toxicity and ecological risks. In this study, the kinetics of selenite in earthworm Eisenia fetida were investigated based on toxicokinetic (TK) model (uptake-elimination phases: 14-14 days). The results showed the highest sub-tissue Se concentrations in pre-clitellum (PC), post-clitellum (PoC) parts, and total earthworms were 95.71, 70.40, and 79.94 mg/kg, respectively, which indicates the distinctive Se uptake capacities of E. fetida. Se kinetic rates in PCs were faster than that of the total E. fetida for both uptake (Kus = 0.30-0.80 mg/kg/day) and elimination phases (Kee = 0.024-0.056 mg/kg/day). Longer half-life times (LT1/2) were observed in the total earthworms (17.85-47.15 d) than PCs (12.28-29.22 d), while non-significant difference was found for the kinetic Se bioaccumulation factor (BAFk) in PC and total earthworms (12-19), which demonstrates that Se can be efficiently bioaccumulated and eliminated in earthworm PC part. Besides, the significant increase Se concentration in PoC with rapid elimination in PC also illustrates that earthworms can alleviate the Se stress by the transformation strategy of Se from the head to tail tissues. In conclusion, the investigation of Se kinetic accumulation and elimination characteristics in this study is helpful for understanding the metabolism and detoxification processes of Se in earthworms, and also providing a theoretical basis for further Se risk assessment using TK model.
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Affiliation(s)
- Ruiping Wang
- Shandong Key Laboratory of Biophysics, Institute of Biophysics, Dezhou University, Dezhou 253023, PR China
| | - Shizhong Yue
- Shandong Key Laboratory of Biophysics, Institute of Biophysics, Dezhou University, Dezhou 253023, PR China.
| | - Caide Huang
- College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, PR China; Centre for Ecology and Hydrology, Maclean Building, Benson Lane, Crowmarsh Gifford, Wallingford, Oxon OX10 8BB, UK
| | - Zhiqiang Shen
- College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, PR China
| | - Yuhui Qiao
- College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, PR China
| | - Sandrine Charles
- Laboratoire de Biométrie et Biologie Évolutive Université de Lyon, Université Lyon 1, UMR CNRS 5558, Villeurbanne 69100, France
| | - Jiafeng Yu
- Shandong Key Laboratory of Biophysics, Institute of Biophysics, Dezhou University, Dezhou 253023, PR China
| | - Zanxia Cao
- Shandong Key Laboratory of Biophysics, Institute of Biophysics, Dezhou University, Dezhou 253023, PR China
| | - Zhen Li
- College of Chemistry and Chemical Engineering, Dezhou University, Dezhou 253023, PR China
| | - Zhenghua Li
- Shandong Key Laboratory of Biophysics, Institute of Biophysics, Dezhou University, Dezhou 253023, PR China
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Byrnes I, Rossbach LM, Jaroszewicz J, Grolimund D, Ferreira Sanchez D, Gomez-Gonzalez MA, Nuyts G, Reinoso-Maset E, Janssens K, Salbu B, Brede DA, Lind OC. Synchrotron XRF and Histological Analyses Identify Damage to Digestive Tract of Uranium NP-Exposed Daphnia magna. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:1071-1079. [PMID: 36598768 PMCID: PMC9850915 DOI: 10.1021/acs.est.2c07174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 12/15/2022] [Accepted: 12/15/2022] [Indexed: 06/17/2023]
Abstract
Micro- and nanoscopic X-ray techniques were used to investigate the relationship between uranium (U) tissue distributions and adverse effects to the digestive tract of aquatic model organism Daphnia magna following uranium nanoparticle (UNP) exposure. X-ray absorption computed tomography measurements of intact daphnids exposed to sublethal concentrations of UNPs or a U reference solution (URef) showed adverse morphological changes to the midgut and the hepatic ceca. Histological analyses of exposed organisms revealed a high proportion of abnormal and irregularly shaped intestinal epithelial cells. Disruption of the hepatic ceca and midgut epithelial tissues implied digestive functions and intestinal barriers were compromised. Synchrotron-based micro X-ray fluorescence (XRF) elemental mapping identified U co-localized with morphological changes, with substantial accumulation of U in the lumen as well as in the epithelial tissues. Utilizing high-resolution nano-XRF, 400-1000 nm sized U particulates could be identified throughout the midgut and within hepatic ceca cells, coinciding with tissue damages. The results highlight disruption of intestinal function as an important mode of action of acute U toxicity in D. magna and that midgut epithelial cells as well as the hepatic ceca are key target organs.
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Affiliation(s)
- Ian Byrnes
- Faculty
of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, Center for
Environmental Radioactivity (CERAD), P.O. Box 5003, 1433 Ås, Norway
| | - Lisa Magdalena Rossbach
- Faculty
of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, Center for
Environmental Radioactivity (CERAD), P.O. Box 5003, 1433 Ås, Norway
| | - Jakub Jaroszewicz
- Faculty
of Materials Science and Engineering, Warsaw
University of Technology, Woloska Street 141, 02-507 Warsaw, Poland
| | - Daniel Grolimund
- Swiss
Light Source, Paul Scherrer Institute (PSI), 5232 Villigen, Switzerland
| | | | - Miguel A. Gomez-Gonzalez
- Diamond
Light Source Ltd., Harwell
Science and Innovation Campus, Didcot, Oxfordshire, OX11 0DE, United Kingdom
| | - Gert Nuyts
- AXIS
Group, NANOlab Center of Excellence, Department of Physics, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium
| | - Estela Reinoso-Maset
- Faculty
of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, Center for
Environmental Radioactivity (CERAD), P.O. Box 5003, 1433 Ås, Norway
| | - Koen Janssens
- AXIS
Group, NANOlab Center of Excellence, Department of Physics, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium
| | - Brit Salbu
- Faculty
of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, Center for
Environmental Radioactivity (CERAD), P.O. Box 5003, 1433 Ås, Norway
| | - Dag Anders Brede
- Faculty
of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, Center for
Environmental Radioactivity (CERAD), P.O. Box 5003, 1433 Ås, Norway
| | - Ole Christian Lind
- Faculty
of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, Center for
Environmental Radioactivity (CERAD), P.O. Box 5003, 1433 Ås, Norway
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8
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Gestin O, Lacoue-Labarthe T, Delorme N, Garnero L, Geffard O, Lopes C. Influence of the exposure concentration of dissolved cadmium on its organotropism, toxicokinetic and fate in Gammarus fossarum. ENVIRONMENT INTERNATIONAL 2023; 171:107673. [PMID: 36580734 DOI: 10.1016/j.envint.2022.107673] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 11/03/2022] [Accepted: 11/29/2022] [Indexed: 06/17/2023]
Abstract
Information on the relationship between the exposure concentrations of metals and their biodistribution among organs remained scarce in invertebrates. The objective of this study was to investigate the effects of Cd concentration on the organotropism, toxico-kinetic and fate of this metal in different organs of gammarids exposed to dissolved radioisotope 109Cd. Gammarids male were exposed for 7 days to three environmental Cd concentrations (i.e. 4, 52 and 350 ng.L-1) before being placed in depuration conditions (i.e. uncontaminated water). At several sampling times, Cd concentrations were determined by 109Cd γ-counting in water, caeca, cephalon, gills, intestine and remaining tissues. Bioconcentration Factors (BCF) and Cd relative proportions in organs were calculated to assess the exposure concentration effect on the bioaccumulation capacities. The dependance of the organ-specific kinetic parameters to Cd water concentrations were estimated by fitting nested one-compartment toxico-kinetic (TK) models to both the accumulation and depuration data, by Bayesian inference. Then, for each Cd concentrations, the metal exchanges among organs over time were formalized by a multi-compartments TK model fitted to all organ data simultaneously. Our results highlighted that, at the end of the exposure phase, BCF and Cd relative proportions, in each organ, were not significantly modulated by water concentrations. Kinetically, Cd accumulation rates in all organs (except intestines) were depended on the exposure concentration, but not the elimination rates. The in vivo management of Cd (i.e. metal exchanges among organs) remained qualitatively unchanged according to exposure concentration. All these results also highlighted key role of that organs in the management of Cd: bioconcentration by caeca, storage by gills and main entry pathway by intestine. This study shows the interest of implementing TK approaches to test the effect of environmental factors on bioaccumulation, inter-organ exchanges and fate of contaminants in invertebrate body to enhance the understanding of the toxicity risk.
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Affiliation(s)
- Ophélia Gestin
- Univ Lyon, Université Lyon 1, CNRS, Laboratoire de Biométrie et Biologie Evolutive UMR 5558, 69622 Villeurbanne, France; Littoral Environnement et Sociétés (LIENSs), UMR 7266 CNRS - Université de la Rochelle, 2, rue Olympe de Gouges, 17000 La Rochelle, France; INRAE, RiverLy, Ecotoxicology Laboratory, 5 Avenue de la Doua, CS20244, 69625 Villeurbanne Cedex, France.
| | - Thomas Lacoue-Labarthe
- Littoral Environnement et Sociétés (LIENSs), UMR 7266 CNRS - Université de la Rochelle, 2, rue Olympe de Gouges, 17000 La Rochelle, France.
| | - Nicolas Delorme
- INRAE, RiverLy, Ecotoxicology Laboratory, 5 Avenue de la Doua, CS20244, 69625 Villeurbanne Cedex, France.
| | - Laura Garnero
- INRAE, RiverLy, Ecotoxicology Laboratory, 5 Avenue de la Doua, CS20244, 69625 Villeurbanne Cedex, France.
| | - Olivier Geffard
- INRAE, RiverLy, Ecotoxicology Laboratory, 5 Avenue de la Doua, CS20244, 69625 Villeurbanne Cedex, France.
| | - Christelle Lopes
- Univ Lyon, Université Lyon 1, CNRS, Laboratoire de Biométrie et Biologie Evolutive UMR 5558, 69622 Villeurbanne, France.
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