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Ali SA, Gümüş NE, Aasim M. A unified framework of response surface methodology and coalescing of Firefly with random forest algorithm for enhancing nano-phytoremediation efficiency of chromium via in vitro regenerated aquatic macrophyte coontail (Ceratophyllum demersum L.). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:42185-42201. [PMID: 38862799 PMCID: PMC11219440 DOI: 10.1007/s11356-024-33911-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Accepted: 06/01/2024] [Indexed: 06/13/2024]
Abstract
Nano-phytoremediation is a novel green technique to remove toxic pollutants from the environment. In vitro regenerated Ceratophyllum demersum (L.) plants were exposed to different concentrations of chromium (Cr) and exposure times in the presence of titania nanoparticles (TiO2NPs). Response surface methodology was used for multiple statistical analyses like regression analysis and optimizing plots. The supplementation of NPs significantly impacted Cr in water and Cr removal (%), whereas NP × exposure time (T) statistically regulated all output parameters. The Firefly metaheuristic algorithm and the random forest (Firefly-RF) machine learning algorithms were coalesced to optimize hyperparameters, aiming to achieve the highest level of accuracy in predicted models. The R2 scores were recorded as 0.956 for Cr in water, 0.987 for Cr in the plant, 0.992 for bioconcentration factor (BCF), and 0.957 for Cr removal through the Firefly-RF model. The findings illustrated superior prediction performance from the random forest models when compared to the response surface methodology. The conclusion is drawn that metal-based nanoparticles (NPs) can effectively be utilized for nano-phytoremediation of heavy metals. This study has uncovered a promising outlook for the utilization of nanoparticles in nano-phytoremediation. This study is expected to pave the way for future research on the topic, facilitating further exploration of various nanoparticles and a thorough evaluation of their potential in aquatic ecosystems.
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Affiliation(s)
- Seyid Amjad Ali
- Department of Information Systems and Technologies, Bilkent University, Ankara, Turkey
| | - Numan Emre Gümüş
- Department of Environmental Protection Technology, Kazım Karabekir Vocational School, Karamanoğlu Mehmetbey University, 70600, Karaman, Turkey
| | - Muhammad Aasim
- Faculty of Agricultural Sciences and Technology, Sivas University of Science and Technology, Sivas, Turkey.
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2
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Cain DJ, Croteau MN, Fuller CC, Beisner KR, Campbell KM, Stoliker DL, Schenk ER. Aquatic insect accumulation of uranium at spring outflows in the Grand Canyon region as influenced by aqueous and sediment geochemistry and biological factors: implications for monitoring. ENVIRONMENTAL MONITORING AND ASSESSMENT 2023; 195:841. [PMID: 37318641 DOI: 10.1007/s10661-023-11254-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Accepted: 04/14/2023] [Indexed: 06/16/2023]
Abstract
Potential adverse ecological effects of expanded uranium (U) mining within the Grand Canyon region motivated studies to better understand U exposure and risk to endemic species. This study documents U exposures and analyzes geochemical and biological factors affecting U bioaccumulation at spring-fed systems within the Grand Canyon region. The principal objective was to determine if aqueous U was broadly indicative of U accumulated by insect larvae, a dominate fauna. Analyses focused on three widely distributed taxa: Argia sp. (a predatory damselfly), Culicidae (suspension feeding mosquitos), and Limnephilus sp. (a detritivorous caddisfly). The study showed that U accumulated by aquatic insects (and periphyton) generally correlated positively with total dissolved U, although correlations were strongest when based on modeled concentrations of the U-dicarbonato complex, UO2(CO3)2-2, and UO2(OH)2. Sediment metal concentration was a redundant indicator of U bioaccumulation. Neither insect size or U in the gut content of Limnephilus sp. substantially affected correlations between aqueous U and whole-body U concentrations. However, in Limnephilus sp., the gut and its content contained large quantities of U. Estimates of the sediment burden in the gut indicated that sediment was a minor source of U mass but contributed substantially to the total insect weight. As a result, whole-body U concentration would tend to vary inversely with the sediment burden of the gut. The correlations between aqueous U and bioaccumulated U provide an initial relational baseline against which newly acquired data could be evaluated for changes in U exposure during and after mining operations.
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Affiliation(s)
- Daniel J Cain
- US Geological Survey, 345 Middlefield Road, Menlo Park, CA, 94025, USA.
| | | | | | | | - Kate M Campbell
- US Geological Survey, Denver Federal Center, Lakewood, CO, 80226, USA
| | | | - Edward R Schenk
- Flagstaff Water Services, 2323 N. Walgreens Dr., Flagstaff, AZ, 86004, USA
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3
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Aasim M, Ali SA, Aydin S, Bakhsh A, Sogukpinar C, Karatas M, Khawar KM, Aydin ME. Artificial intelligence-based approaches to evaluate and optimize phytoremediation potential of in vitro regenerated aquatic macrophyte Ceratophyllum demersum L. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:40206-40217. [PMID: 36607572 DOI: 10.1007/s11356-022-25081-3] [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: 07/20/2022] [Accepted: 12/27/2022] [Indexed: 06/17/2023]
Abstract
Water bodies or aquatic ecosystem are susceptible to heavy metal accumulation and can adversely affect the environment and human health especially in underdeveloped nations. Phytoremediation techniques of water bodies using aquatic plants or macrophytes are well established and are recognized as eco-friendly world over. Phytoremediation of heavy metals and other pollutants in aquatic environments can be achieved by using Ceratophyllum demersum L. - a well-known floating macrophyte. In vitro regenerated plants of C. demersum (7.5 g/L) were exposed to 24, 72, and 120 h to 0, 0.5, 1.0, 2.0, and 4.0 mg/L of cadmium (CdSO4·8H2O) in water. Results revealed significantly different relationship in terms of Cd in water, Cd uptake by plants, bioconcentration factor (BCF), and Cd removal (%) from water. The study showed that Cd uptake by plants and BCF values increased significantly with exposure time. The highest BCF value (3776.50) was recorded for plant samples exposed to 2 mg/L Cd for 72 h. Application of all Cd concentrations and various exposure duration yielded Cd removal (%) between the ranges of 93.8 and 98.7%. These results were predicted through artificial intelligence-based models, namely, random forest (RF), extreme gradient boosting (XGBoost), and multilayer perceptron (MLP). The tested models predicted the results accurately, and the attained results were further validated via three different performance metrics. The optimal regression coefficient (R2) for the models was recorded as 0.7970 (Cd water, mg/L), 0.9661 (Cd plants, mg/kg), 0.9797 bioconcentration factor (BCF), and 0.9996 (Cd removal, %), respectively. These achieved results suggest that in vitro regenerated C. demersum can be efficaciously used for phytoremediation of Cd-contaminated aquatic environments. Likewise, the proposed modeling of phytoremediation studies can further be employed more comprehensively in future studies aimed at data prediction and optimization.
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Affiliation(s)
- Muhammad Aasim
- Department of Plant Protection, Faculty of Agricultural Science and Technologies, Sivas University of Science and Technology, Sivas, Turkey.
| | - Seyid Amjad Ali
- Department of Information Systems and Technologies, Bilkent University, Ankara, Turkey
| | - Senar Aydin
- Department of Environmental Engineering, Faculty of Engineering, Necmettin Erbakan University, Konya, Turkey
| | - Allah Bakhsh
- Centre of Excellency in Molecular Biology, University of The Punjab, Lahore, Pakistan
| | - Canan Sogukpinar
- Department of Environmental Engineering, Faculty of Engineering, Necmettin Erbakan University, Konya, Turkey
| | - Mehmet Karatas
- Department of Biotechnology, Faculty of Science, Necmettin Erbakan University, Konya, Turkey
| | - Khalid Mahmood Khawar
- Department of Field Crops, Faculty of Agriculture, Ankara University, Ankara, Turkey
| | - Mehmet Emin Aydin
- Department of Civil Engineering, Faculty of Engineering, Necmettin Erbakan University, Konya, Turkey
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4
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Impacts of water hardness on coagulation-UF-NF process using aluminum salts. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
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5
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Trenfield MA, Walker SL, Tanneberger C, Kleinhenz LS, Harford AJ. Development of a Site-Specific Guideline Value for Copper and Aquatic Life in Tropical Freshwaters of Low Hardness. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2022; 41:2808-2821. [PMID: 36039983 DOI: 10.1002/etc.5470] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 07/22/2022] [Accepted: 08/21/2022] [Indexed: 06/15/2023]
Abstract
Copper (Cu) is a contaminant of potential concern for a uranium mine whose receiving waters are in the World Heritage-listed Kakadu National Park in northern Australia. The physicochemical characteristics of the freshwaters in this region enhance metal bioavailability and toxicity. Seven tropical species were used to assess the chronic toxicity of Cu in extremely soft freshwater from a creek upstream of the mine. Sensitivity to Cu was as follows: Moinodaphnia macleayi > Chlorella sp. > Velesunio sp. > Hydra viridissima > Amerianna cumingi > Lemna aequinoctialis > Mogurnda mogurnda. The 10% effect concentrations (EC10s) ranged from 1.0 µg/L Cu for the cladoceran Moinodaphnia macleayi to 9.6 µg/L for the fish M. mogurnda. The EC50s ranged from 6.6 µg/L Cu for the mussel Velesunio sp. to 22.5 µg/L Cu for M. mogurnda. Geochemical modeling predicted Cu to be strongly bound to fulvic acid (80%-99%) and of low bioavailability (0.02%-11.5%) under these conditions. Protective concentrations (PCs) were derived from a species sensitivity distribution for the local biota. The 99% PC (PC99), PC95, PC90, and PC80 values were 0.5, 0.8, 1.0, and 1.5 µg/L Cu, respectively. These threshold values suggest that the current Australian and New Zealand default national 99% protection guideline value for Cu (1.0 µg/L) would not provide adequate protection in freshwaters of low hardness, particularly for this area of high conservation value. The continuous criterion concentration predicted by the Cu biotic ligand model for conditions of low pH (6.1), low dissolved organic carbon (2.5 mg/L), low hardness (3.3 mg/L), and 27 °C was 0.48 µg/L Cu, comparable with the PC99. Consideration of the natural water quality conditions of a site is paramount for protective water quality guidelines. Environ Toxicol Chem 2022;41:2808-2821. © 2022 Commonwealth of Australia. Environmental Toxicology and Chemistry © 2022 SETAC.
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Affiliation(s)
- Melanie A Trenfield
- Environmental Research Institute of the Supervising Scientist, Darwin, Northern Territory, Australia
| | - Samantha L Walker
- Environmental Research Institute of the Supervising Scientist, Darwin, Northern Territory, Australia
| | - Claudia Tanneberger
- Environmental Research Institute of the Supervising Scientist, Darwin, Northern Territory, Australia
| | - Linda S Kleinhenz
- Environmental Research Institute of the Supervising Scientist, Darwin, Northern Territory, Australia
| | - Andrew J Harford
- Environmental Research Institute of the Supervising Scientist, Darwin, Northern Territory, Australia
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Mertens A, Horemans N, Saenen E, Nauts R, Cuypers A. Calcium affects uranium responses in Arabidopsis thaliana: From distribution to toxicity. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2022; 185:101-111. [PMID: 35667317 DOI: 10.1016/j.plaphy.2022.05.020] [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: 04/13/2022] [Revised: 05/16/2022] [Accepted: 05/19/2022] [Indexed: 06/15/2023]
Abstract
Uranium, a heavy metal and primordial radionuclide, is present in surface waters and soils both naturally and due to industrial activities. Uranium is known to be toxic to plants and its uptake and toxicity can be influenced by multiple factors such as pH and the presence of different ions. However, the precise role of the different ions in uranium uptake is not yet known. Here we investigated whether calcium influences uranium uptake and toxicity in the terrestrial plant Arabidopsis thaliana. To this end, A. thaliana plants were exposed to different calcium and uranium concentrations and furthermore, calcium channels were blocked using the calcium channel blocker lanthanum chloride (LaCl3). Fresh weight, relative growth rate, concentration of nutrients and uranium and gene expression of oxidative stress-related genes and calcium transporters were determined in roots and shoots. Calcium affected plant growth and oxidative stress in both control (no uranium) and uranium-exposed plants. In shoots, this was influenced by the total calcium concentration, but not by the different tested uranium concentrations. Uranium in turn did influence calcium uptake and distribution. Uranium-exposed plants grown in a medium with a higher calcium concentration showed an increase in gene expression of NADPH oxidases RBOHC and RBOHE and calcium transporter CAX7 after uranium exposure. In roots, these calcium-dependent responses in gene expression were not observed. This indicates that calcium indeed affects uranium toxicity, but only in shoots. In addition, a clear influence of uranium and LaCl3 (separately and combined) on the expression of calcium transporters was observed.
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Affiliation(s)
- Amber Mertens
- Belgian Nuclear Research Centre (SCK CEN), Boeretang 200, 2400, Mol, Belgium; Centre for Environmental Sciences (CMK), Hasselt University, Agoralaan D, 3590, Diepenbeek, Belgium.
| | - Nele Horemans
- Belgian Nuclear Research Centre (SCK CEN), Boeretang 200, 2400, Mol, Belgium; Centre for Environmental Sciences (CMK), Hasselt University, Agoralaan D, 3590, Diepenbeek, Belgium.
| | - Eline Saenen
- Belgian Nuclear Research Centre (SCK CEN), Boeretang 200, 2400, Mol, Belgium.
| | - Robin Nauts
- Belgian Nuclear Research Centre (SCK CEN), Boeretang 200, 2400, Mol, Belgium.
| | - Ann Cuypers
- Belgian Nuclear Research Centre (SCK CEN), Boeretang 200, 2400, Mol, Belgium; Centre for Environmental Sciences (CMK), Hasselt University, Agoralaan D, 3590, Diepenbeek, Belgium.
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7
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Simon O, Coppin F, Micozzi N, Beaugelin-Seiller K, Février L, Henner P, Della-Vedova C, Camilleri V, Gilbin R. Chronic toxicity of uranium to three benthic organisms in laboratory spiked sediment. JOURNAL OF ENVIRONMENTAL RADIOACTIVITY 2022; 241:106776. [PMID: 34823202 DOI: 10.1016/j.jenvrad.2021.106776] [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: 01/28/2021] [Revised: 11/09/2021] [Accepted: 11/15/2021] [Indexed: 06/13/2023]
Abstract
Due to mining activities, concentration of uranium (U) in the environment nearby former and operating sites can be higher than in other areas. The derivation of quality criteria for U in freshwater ecosystems, rivers and lakes includes the consideration of contaminated sediments and the associated risk to the benthic life. Therefore, the derivation of a quality criteria for sediment has been viewed as a logical and necessary extension of the work already done to establish water quality criteria. In order to contribute to the determination of a Quality Standard for sediment (QSsediment) according to the European recommendations, this study focuses on the acquisition of a new toxicity dataset, to enrich the few rare existing data, most often unsuitable. A basic set of organisms, including three complementary benthic organisms (Chironomus riparius, Hyalella azteca, Myriophyllum aquaticum), was chronically exposed to U spiked to a standard laboratory-formulated sediment, according to the related bioassay guidelines (ISO/FDIS16303, OECD 218/9, ISO/DIS 16191). We looked to determine when possible both NOEC and EC10 values for each organism. For C. riparius, a NOEC (emergence rate) value was estimated at 62 mgU, kg-1, dm and the EC10 value reached 188 mgU, kg-1, dm (CI95% 40-885 mgU kg-1, dm). For H. azteca, a NOEC (survival rate) value of 40 mgU kg-1, dm was observed while the EC10 value at 296 mgU kg-1, dm (CI95% = 155-436 mgU kg-1, dm) was slightly higher than for growth at 199 mgU kg-1, dm (CI95% = 107-291 mgU kg-1 dm). Finally, the less sensitive organism seemed to be the plant, M. aquaticum, for which we determined a NOEC value of 100 mgU kg-1, dm. Results obtained regarding the toxicity of U made it possible to suggest a preliminary QSsediment value of 4 mgU kg-1, dry mass. This value was shown conservative compared to U sediment quality criteria derived by other jurisdictions.
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Affiliation(s)
- Olivier Simon
- IRSN - Institut de Radioprotection et de Sûreté Nucléaire, Laboratoire de recherche sur les effets des radionucléides sur les écosystèmes (IRSN/PSE-ENV/SRTE/LECO), Bdg 183, BP 3, St-Paul-lez-Durance Cedex, France.
| | - Frederic Coppin
- IRSN-Institut de Radioprotection et Sûreté Nucléaire Cadarache, Laboratoire de recherche sur les transferts des radionucléides dans les écosystèmes terrestres (IRSN/PSE-ENV/SRTE/L2RT), Bdg 183, BP 3, Saint-Paul-lez-Durance Cedex, France.
| | - Nadine Micozzi
- IRSN - Institut de Radioprotection et de Sûreté Nucléaire, Laboratoire de recherche sur les effets des radionucléides sur les écosystèmes (IRSN/PSE-ENV/SRTE/LECO), Bdg 183, BP 3, St-Paul-lez-Durance Cedex, France.
| | - Karine Beaugelin-Seiller
- IRSN - Institut de Radioprotection et de Sûreté Nucléaire, Laboratoire de recherche sur les effets des radionucléides sur les écosystèmes (IRSN/PSE-ENV/SRTE/LECO), Bdg 183, BP 3, St-Paul-lez-Durance Cedex, France.
| | - Laureline Février
- IRSN-Institut de Radioprotection et Sûreté Nucléaire Cadarache, Laboratoire de recherche sur les transferts des radionucléides dans les écosystèmes terrestres (IRSN/PSE-ENV/SRTE/L2RT), Bdg 183, BP 3, Saint-Paul-lez-Durance Cedex, France.
| | - Pascale Henner
- IRSN-Institut de Radioprotection et Sûreté Nucléaire Cadarache, Laboratoire de recherche sur les transferts des radionucléides dans les écosystèmes terrestres (IRSN/PSE-ENV/SRTE/L2RT), Bdg 183, BP 3, Saint-Paul-lez-Durance Cedex, France.
| | - Claire Della-Vedova
- IRSN-Institut de Radioprotection et Sûreté Nucléaire Cadarache, Laboratoire de recherche sur les transferts des radionucléides dans l'écosystème aquatique (IRSN/PSE-ENV/SRTE/LRTA), Bdg 159, BP 3, Saint-Paul-lez-Durance, France.
| | - Virginie Camilleri
- IRSN - Institut de Radioprotection et de Sûreté Nucléaire, Laboratoire de recherche sur les effets des radionucléides sur les écosystèmes (IRSN/PSE-ENV/SRTE/LECO), Bdg 183, BP 3, St-Paul-lez-Durance Cedex, France.
| | - Rodolphe Gilbin
- IRSN-Institut de Radioprotection et Sûreté Nucléaire Cadarache, Service de recherche sur les transferts et les effets des radionucléides sur les écosystèmes (IRSN/PSE-ENV/SRTE), Bdg 183, BP 3, Saint-Paul-lez-Durance Cedex, France.
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8
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Fan M, Wang X, Song Q, Zhang L, Ren B, Yang X. Review of biomass-based materials for uranium adsorption. J Radioanal Nucl Chem 2021. [DOI: 10.1007/s10967-021-08003-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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9
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Li L, Sun F, Liu Q, Zhao X, Song K. Development of regional water quality criteria of lead for protecting aquatic organism in Taihu Lake, China. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 222:112479. [PMID: 34224968 DOI: 10.1016/j.ecoenv.2021.112479] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 06/06/2021] [Accepted: 06/28/2021] [Indexed: 06/13/2023]
Abstract
Lead is a widely distributed priority controlled heavy metals in aquatic system, its toxicity to aquatic organisms affected by water quality parameters. This study investigated the acute toxicity of lead (Pb) to the aquatic organisms in Taihu Lake under various water hardness, corresponding regional water quality criteria were derived. The acute toxicity experimental results revealed that the toxicity of Pb to aquatic organisms increased with water hardness. The Pb toxicity has a highest toxicity at water hardness 50 mg/L (expressed as CaCO3), especially for Palaemon modestus where the 96 h LC50 value was 0.024 mg/L. The hazardous concentration for 5% of biological species (HC5) values were determined via species sensitivity distribution (SSD) method as 94.0 μg/L, 222.3 μg/L and 375.8 μg/L for Pb at water hardness 50, 150, and 250 mg/L, respectively. The assessment factor (AF) value was set at 2, followed by the current SSD framework where European commission recommend a fixed AF of 5-1. Thus, the predicted no effect concentration (PNEC) values was 47.0 μg/L, 111.2 μg/Land 187.9 μg/L at water hardness 50, 150, and 250 mg/L, respectively. Meanwhile, the short-term water quality criteria of Pb for Taihu lake aquatic organisms were derived as 111.2 μg/L at water hardness 150 mg CaCO3/L. The long-term water quality criteria were derived as 4.3 μg/L by using acute/chronic ratio 51.29. When the derived value was used for Taihu Lake, 2.7% of the sampling sites in Taihu Lake was exceeded this criterion. The results of this study can provide technical methods and basic information for deriving Pb regional water quality criteria for protecting native aquatic organisms, in China.
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Affiliation(s)
- Lu Li
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - Fuhong Sun
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Qun Liu
- School of Materials Science and Chemical Engineering, Anhui Jianzhu University, Hefei 230022, China
| | - Xiaoli Zhao
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Kang Song
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China.
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10
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Trenfield MA, Pease CJ, Walker SL, Markich SJ, Humphrey CL, van Dam RA, Harford AJ. Assessing the Toxicity of Mine-Water Mixtures and the Effectiveness of Water Quality Guideline Values in Protecting Local Aquatic Species. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2021; 40:2334-2346. [PMID: 33928674 DOI: 10.1002/etc.5103] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 03/02/2021] [Accepted: 04/22/2021] [Indexed: 06/12/2023]
Abstract
Six tropical freshwater species were used to assess the toxicity of mine waters from a uranium mine adjacent to a World Heritage area in northern Australia. Key contaminants of potential concern for the mine were U, Mg, Mn, and total ammonia nitrogen (TAN). Direct toxicity assessments were carried out to assess whether the established site-specific guideline values for individual contaminants would be protective with the contaminants occurring as mixtures. Metal speciation was calculated for contaminants to determine which were the major contributors of toxicity, with 84 to 96% of Mg predicted in the free-ion form as Mg2+ , and 76 to 92% of Mn predicted as Mn2+ . Uranium, Al, and Cu were predicted to be strongly bound to fulvic acid. Uranium, Mg, Mn, and Cu were incorporated into concentration addition or independent action mixture toxicity models to compare the observed toxicity in each of the waters with predicted toxicity. For >90% of the data, mine-water toxicity was less than predicted by the concentration addition model. Instances where toxicity was greater than predicted were accompanied by exceedances of individual metal guideline values in all but one case (i.e., a Mg concentration within 10% of the guideline value). This indicates that existing individual water quality guideline values for U, Mg, Mn, and TAN would adequately protect ecosystems downstream of the mine. Environ Toxicol Chem 2021;40:2334-2346. © 2021 Commonwealth of Australia. Environmental Toxicology and Chemistry © 2021 SETAC.
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Affiliation(s)
- Melanie A Trenfield
- Environmental Research Institute of the Supervising Scientist, Darwin, Northern Territory, Australia
| | - Ceiwen J Pease
- Environmental Research Institute of the Supervising Scientist, Darwin, Northern Territory, Australia
| | - Samantha L Walker
- Environmental Research Institute of the Supervising Scientist, Darwin, Northern Territory, Australia
| | - Scott J Markich
- Aquatic Solutions International, "Point Break", North Narrabeen Beach, New South Wales, Australia
| | - Chris L Humphrey
- Environmental Research Institute of the Supervising Scientist, Darwin, Northern Territory, Australia
| | | | - Andrew J Harford
- Environmental Research Institute of the Supervising Scientist, Darwin, Northern Territory, Australia
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11
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Pedroso da Fontoura L, Puntel R, Pinton S, Silva de Ávila D, Teixeira da Rocha JB, Onofre de Souza D, Roos DH. A toxicological comparison between two uranium compounds in Artemia salina: Artificial seawater containing CaCO 3. MARINE ENVIRONMENTAL RESEARCH 2021; 163:105221. [PMID: 33341237 DOI: 10.1016/j.marenvres.2020.105221] [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: 08/13/2020] [Revised: 11/18/2020] [Accepted: 11/26/2020] [Indexed: 06/12/2023]
Abstract
Uranium (U) mining is an aquatic environmental concern because most of these harmful compounds are discharged into freshwater, reaching the saline environment as the final destination of this contaminated water. Carbonates are present in ocean waters and are essential for benthic organisms, however they may influence the U-induced toxicity. Thus, the aim of this study was to compare the toxicity of uranium nitrate (UN) and uranium acetate (UA) in Artemia salina (AS), which is one of the leading representatives of the marine biota. The cultures of AS (instar II) maintained in artificial seawater containing CaCO3 were exposed for 24 h to different concentrations of U compounds. The results showed that AS were more sensitive to UN (LC50 ≈ 15 μM) when compared with UA (LC50 ≈ 245 μM) indicating higher toxicity of this U compound. Calculated U speciation indicated that Ca2UO2(CO3)3 and (UO2)2CO3(OH)3- complexes predominated under our experimental conditions. The immobilization/lethality was observed after 9 h of exposure for both U compounds. However, only UN caused a significant decrease (≈40%) in the acetylcholinesterase (AChE) activity when compared with control. In order to observe preliminary toxicity effects, we evaluated oxidative stress parameters, such as catalase (CAT) activity, TBARS formation, radical species (RS) generation and cell membrane injury and/or apoptosis (CMI). In this study, we demonstrate that U compounds caused a significant decrease in CAT activity. Similarly, we also observed that UN increased TBARS levels in AS at concentrations 5 times lower than AU (10 μM and 50 μM, respectively). Furthermore, RS generation and CMI were enhanced only on AS treated with UN. Overall, the effects observed here were remarkably significant in AS exposed to UN when compared with AU. In this study, we showed different profiles of toxicity for both U compounds, contributing significantly to the current and scarce understanding of the aquatic ecotoxicity of this heavy metal.
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Affiliation(s)
- Lara Pedroso da Fontoura
- Universidade Federal do Pampa, Campus Uruguaiana, BR-472 Km 592, ZIP code: 97500-970, RS, Brazil
| | - Robson Puntel
- Universidade Federal do Pampa, Campus Uruguaiana, BR-472 Km 592, ZIP code: 97500-970, RS, Brazil
| | - Simone Pinton
- Universidade Federal do Pampa, Campus Uruguaiana, BR-472 Km 592, ZIP code: 97500-970, RS, Brazil
| | - Daiana Silva de Ávila
- Universidade Federal do Pampa, Campus Uruguaiana, BR-472 Km 592, ZIP code: 97500-970, RS, Brazil
| | - João Batista Teixeira da Rocha
- Universidade Federal de Santa Maria, Departamento de bioquímica e biologia celular/CCNE/UFSM, Laboratório de Bioquímica Toxicológica, Farmacologia e Organocalcogênios, ZIP code: 97105900, Santa Maria, RS, Brazil
| | - Diogo Onofre de Souza
- Universidade Federal do Rio Grande do Sul, Instituto de Ciências Básicas da Saúde, Departamento de Bioquímica. Rua Ramiro Barcelos, 2.600 - Anexo Laboratorio 28 Santana, ZIP code: 90035003, Porto Alegre, RS, Brazil
| | - Daniel Henrique Roos
- Universidade Federal do Pampa, Campus Uruguaiana, BR-472 Km 592, ZIP code: 97500-970, RS, Brazil.
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Zhang Y, Lai JL, Ji XH, Luo XG. Unraveling response mechanism of photosynthetic metabolism and respiratory metabolism to uranium-exposure in Vicia faba. JOURNAL OF HAZARDOUS MATERIALS 2020; 398:122997. [PMID: 32512460 DOI: 10.1016/j.jhazmat.2020.122997] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 05/18/2020] [Accepted: 05/18/2020] [Indexed: 05/28/2023]
Abstract
As a natural radionuclide, uranium (U) has obvious phytotoxicity, the purpose of this study is to unravel the response mechanism of U on photosynthetic and respiratory metabolism in plants. Therefore, 14-day-old Vicia faba seedlings were exposed to 0-25 μM U during 72 h. U effects on growth parameters, physiological parameters of plants, and potential phytotoxicity mechanism were investigated by physiological analysis, and metabolome and transcriptome data. U significantly inhibited photosynthesis and respiration of plants. In metabolome analysis, 53 metabolites related to carbohydrate metabolism were identified (13 up-regulated, 12 down-regulated). In transcriptome analysis, U significantly inhibited the expression of photoreactive electron transport chain (up: 0; down: 31), Calvin cycle (up: 0; down: 12) and photorespiration pathway genes (up: 0; down: 8). U significantly inhibited the expression of cellular energy metabolic pathways genes (e.g., glycolysis, TCA cycle, and oxidative phosphorylation pathways) (up 8, down 18). We concluded that U inhibited the expression of genes involved in the photosynthetic metabolic pathway, which caused the decrease of photosynthetic rate. Meanwhile, U inhibited the expression of the electron transport chain genes in the mitochondrial oxidative phosphorylation pathway, which leads to the abnormal energy supply of cells and the inhibition of root respiration rate.
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Affiliation(s)
- Yu Zhang
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, China
| | - Jin-Long Lai
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, China; College of Environment and Resources, Southwest University of Science and Technology, Mianyang, 621010, China.
| | - Xiao-Hui Ji
- College of Chemical and Environment Science, Shaanxi University of Technology, Hanzhong, 723000, China; College of Environment and Resources, Southwest University of Science and Technology, Mianyang, 621010, China
| | - Xue-Gang Luo
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, China; Engineering Research Center of Biomass Materials, Ministry of Education, Southwest University of Science and Technology, Mianyang, 621010, China.
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13
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Kleinhenz LS, Nugegoda D, Trenfield MA, van Dam RA, Humphrey CL, Mooney TJ, Harford AJ. Acute and chronic toxicity of magnesium to the early life stages of two tropical freshwater mussel species. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 184:109638. [PMID: 31514080 DOI: 10.1016/j.ecoenv.2019.109638] [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: 06/15/2019] [Revised: 08/29/2019] [Accepted: 09/03/2019] [Indexed: 06/10/2023]
Abstract
Magnesium (Mg) is a common contaminant in mine water discharges. Although Mg is an essential element in biological processes, increased concentrations from anthropogenic sources can stress aquatic ecosystems. Additionally, studies evaluating the effects of Mg on north Australian freshwater species have indicated that in very soft waters there is a high risk to some species. Freshwater mussels are an ecologically and culturally important taxon in many freshwater environments, but knowledge of their sensitivity to Mg is limited. In the present study, the acute and chronic sensitivity of two freshwater mussel species, Velesunio angasi and an undescribed Velesunio species, to Mg was assessed (using MgSO4) on their early life stages, larval glochidia and post-parasitic juveniles. Acute 24-h exposures with glochidia generated a mean median lethal (LC50) toxicity estimate of 284mg/L for the five tests with V. angasi, and a mean LC50 of 300mg/L for the three tests with Velesunio sp. Mean chronic 14-d toxicity estimates resulting in 50% (EC50) and 10% (EC10) growth rate reductions for juveniles were 241 and 88mg/L respectively for the three tests with V. angasi juveniles, and 232 and 87mg/L respectively for the three tests with Velesunio sp. juveniles. The results represent the first acute and chronic Mg toxicity data for tropical freshwater mussels, and indicated that V. angasi and Velesunio sp. exhibited similar sensitivity and were moderately sensitive to Mg when compared to other tropical species. These results are a valuable contribution to the small existing dataset for Mg toxicity to tropical freshwater species, which can be used to inform water management in areas where Mg is a contaminant of concern, and ensure the protection of these taxa.
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Affiliation(s)
- Linda S Kleinhenz
- School of Science, Royal Melbourne Institute of Technology University, PO Box 71, Bundoora, VIC, 3083, Australia; Supervising Scientist Branch, Department of the Environment and Energy, GPO Box 461, Darwin, NT, 0801, Australia.
| | - Dayanthi Nugegoda
- School of Science, Royal Melbourne Institute of Technology University, PO Box 71, Bundoora, VIC, 3083, Australia
| | - Melanie A Trenfield
- Supervising Scientist Branch, Department of the Environment and Energy, GPO Box 461, Darwin, NT, 0801, Australia
| | - Rick A van Dam
- School of Science, Royal Melbourne Institute of Technology University, PO Box 71, Bundoora, VIC, 3083, Australia; Supervising Scientist Branch, Department of the Environment and Energy, GPO Box 461, Darwin, NT, 0801, Australia
| | - Christopher L Humphrey
- Supervising Scientist Branch, Department of the Environment and Energy, GPO Box 461, Darwin, NT, 0801, Australia
| | - Thomas J Mooney
- Supervising Scientist Branch, Department of the Environment and Energy, GPO Box 461, Darwin, NT, 0801, Australia
| | - Andrew J Harford
- School of Science, Royal Melbourne Institute of Technology University, PO Box 71, Bundoora, VIC, 3083, Australia; Supervising Scientist Branch, Department of the Environment and Energy, GPO Box 461, Darwin, NT, 0801, Australia
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Mounicou S, Frelon S, Le Guernic A, Eb-Levadoux Y, Camilleri V, Février L, Pierrisnard S, Carasco L, Gilbin R, Mahé K, Tabouret H, Bareille G, Simon O. Use of fish otoliths as a temporal biomarker of field uranium exposure. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 690:511-521. [PMID: 31301492 DOI: 10.1016/j.scitotenv.2019.06.534] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 06/28/2019] [Accepted: 06/30/2019] [Indexed: 06/10/2023]
Abstract
This study aimed to determine uranium (U) pollution over time using otoliths as a marker of fish U contamination. Experiments were performed in field contamination (~20 μg L-1: encaged fish: 15d, 50d and collected wild fish) and in laboratory exposure conditions (20 and 250 μg L-1, 20d). We reported the U seasonal concentrations in field waterborne exposed roach fish (Rutilus rutilus), in organs and otoliths. Otoliths were analyzed by ICPMS and LA-ICP SF MS of the entire growth zone. Concentrations were measured on transects from nucleus to the edge of otoliths to characterize environmental variations of metal accumulation. Results showed a spatial and temporal variation of U contamination in water (from 51 to 9.4 μg L-1 at the surface of the water column), a high and seasonal accumulation in fish organs, mainly the digestive tract (from 1000 to 30,000 ng g-1, fw), the gills (from 1600 to 3200 ng g-1, fw) and the muscle (from 144 to 1054 ng g-1, fw). U was detected throughout the otolith and accumulation varied over the season from 70 to 350 ng g-1, close to the values measured (310 ng g-1) after high exposure levels in laboratory conditions. U in otoliths of encaged fish showed rapid and high U accumulation from 20 to 150 ng g-1. The U accumulation signal was mainly detected on the edge of the otolith, showing two U accumulation peaks, probably correlated to fish age, i.e. 2 years old. Surprisingly, elemental U and Zn signatures followed the same pattern therefore using the same uptake pathways. Laboratory, caging and field experiments indicated that otoliths were able to quickly accumulate U on the surface even for low levels and to store high levels of U. This study is an encouraging first step in using otoliths as a marker of U exposure.
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Affiliation(s)
- S Mounicou
- CNRS/Univ Pau & Pays Adour/E2S UPPA, Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Matériaux, UMR5254, 64000 Pau, France
| | - S Frelon
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSE-ENV/SRTE/LECO, Cadarache, Saint Paul-lez-Durance 13115, France
| | - A Le Guernic
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSE-ENV/SRTE/LECO, Cadarache, Saint Paul-lez-Durance 13115, France
| | - Y Eb-Levadoux
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSE-ENV/SRTE/LECO, Cadarache, Saint Paul-lez-Durance 13115, France
| | - V Camilleri
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSE-ENV/SRTE/LECO, Cadarache, Saint Paul-lez-Durance 13115, France
| | - L Février
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSE-ENV/SRTE/LR2T, Cadarache, Saint Paul-lez-Durance 13115, France
| | - S Pierrisnard
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSE-ENV/SRTE/LR2T, Cadarache, Saint Paul-lez-Durance 13115, France
| | - L Carasco
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSE-ENV/SRTE/LR2T, Cadarache, Saint Paul-lez-Durance 13115, France
| | - R Gilbin
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSE-ENV/SRTE/LECO, Cadarache, Saint Paul-lez-Durance 13115, France
| | - K Mahé
- IFREMER, Centre Manche Mer du Nord, Laboratoire Ressources Halieutiques, BP 699, 62321 Boulogne-sur-mer, France
| | - H Tabouret
- CNRS/Univ Pau & Pays Adour/E2S UPPA, Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Matériaux, UMR5254, 64000 Pau, France
| | - G Bareille
- CNRS/Univ Pau & Pays Adour/E2S UPPA, Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Matériaux, UMR5254, 64000 Pau, France
| | - O Simon
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSE-ENV/SRTE/LECO, Cadarache, Saint Paul-lez-Durance 13115, France.
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Simon O, Gagnaire B, Sommard V, Pierrisnard S, Camilleri V, Carasco L, Gilbin R, Frelon S. Uranium transfer and accumulation in organs of Danio rerio after waterborne exposure alone or combined with diet-borne exposure. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2019; 38:90-98. [PMID: 30284317 DOI: 10.1002/etc.4283] [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: 04/28/2018] [Revised: 07/21/2018] [Accepted: 09/24/2018] [Indexed: 06/08/2023]
Abstract
Uranium (U) toxicity patterns for fish have been mainly determined under laboratory-controlled waterborne exposure conditions. Because fish can take up metals from water and diet under in situ exposure conditions, a waterborne U exposure experiment (20 μg L-1 , 20 d) was conducted in the laboratory to investigate transfer efficiency and target organ distribution in zebrafish Danio rerio compared with combined waterborne exposure (20 μg L-1 ) and diet-borne exposure (10.7 μg g-1 ). 233 Uranium was used as a specific U isotope tracer for diet-borne exposure. Bioaccumulation was examined in the gills, liver, kidneys, intestine, and gonads of D. rerio. Concentrations in the organs after waterborne exposure were approximately 500 ng g-1 fresh weight, except in the intestine (> 10 μg g-1 fresh wt) and the kidneys (200 ng g-1 fresh wt). No significant difference was observed between waterborne and diet-borne conditions. Trophic U transfer in organs was found but at a low level (< 10 ng g-1 fresh wt). Surprisingly, the intestine appeared to be the main target organ after both tested exposure modalities. The gonads (57% at 20 d) and the liver (41% at 20 d) showed the highest accumulated relative U burdens. Environ Toxicol Chem 2019;38:90-98. © 2018 SETAC.
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Affiliation(s)
- Olivier Simon
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSE-ENV/SRTE/LECO, Centre de Cadarache, Saint Paul-lez-Durance, France
| | - Béatrice Gagnaire
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSE-ENV/SRTE/LECO, Centre de Cadarache, Saint Paul-lez-Durance, France
| | - Vivien Sommard
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSE-ENV/SRTE/LECO, Centre de Cadarache, Saint Paul-lez-Durance, France
| | - Sylvie Pierrisnard
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSE-ENV/SRTE/LR2T, Centre de Cadarache, Saint Paul-lez-Durance, France
| | - Virginie Camilleri
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSE-ENV/SRTE/LECO, Centre de Cadarache, Saint Paul-lez-Durance, France
| | - Loic Carasco
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSE-ENV/SRTE/LR2T, Centre de Cadarache, Saint Paul-lez-Durance, France
| | - Rodolphe Gilbin
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSE-ENV/SRTE, Centre de Cadarache, Saint Paul-lez-Durance, France
| | - Sandrine Frelon
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSE-ENV/SRTE/LECO, Centre de Cadarache, Saint Paul-lez-Durance, France
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Hayek EE, Torres C, Rodriguez-Freire L, Blake JM, De Vore CL, Brearley AJ, Spilde MN, Cabaniss S, Ali AMS, Cerrato J. Effect of Calcium on the Bioavailability of Dissolved Uranium(VI) in Plant Roots under Circumneutral pH. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2018; 52:13089-13098. [PMID: 30412391 PMCID: PMC6341987 DOI: 10.1021/acs.est.8b02724] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
We integrated field measurements, hydroponic experiments, microscopy, and spectroscopy to investigate the effect of Ca(II) on dissolved U(VI) uptake by plants in 1 mM HCO3- solutions at circumneutral pH. The accumulation of U in plants (3.1-21.3 mg kg-1) from the stream bank of the Rio Paguate, Jackpile Mine, New Mexico served as a motivation for this study. Brassica juncea was the model plant used for the laboratory experiments conducted over a range of U (30-700 μg L-1) and Ca (0-240 mg L-1) concentrations. The initial U uptake followed pseudo-second-order kinetics. The initial U uptake rate ( V0) ranged from 4.4 to 62 μg g-1 h-1 in experiments with no added Ca and from 0.73 to 2.07 μg g-1 h-1 in experiments with 12 mg L-1 Ca. No measurable U uptake over time was detected for experiments with 240 mg L-1 Ca. Ternary Ca-U-CO3 complexes may affect the decrease in U bioavailability observed in this study. Elemental X-ray mapping using scanning transmission electron microscopy-energy-dispersive spectrometry detected U-P-bearing precipitates within root cell walls in water free of Ca. These results suggest that root interactions with Ca and carbonate in solution affect the bioavailability of U in plants. This study contributes relevant information to applications related to U transport and remediation of contaminated sites.
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Affiliation(s)
- Eliane El Hayek
- Department of Chemistry and Chemical Biology, MSC03 2060, University of New Mexico, Albuquerque, New Mexico 87131, United States
- Phone: (001) (505) 582-1362,
| | - Chris Torres
- Department of Chemical and Biological Engineering, MSC01 1120, University of New Mexico, Albuquerque, New Mexico 87131, United States
| | - Lucia Rodriguez-Freire
- Department of Civil and Environmental Engineering, New Jersey Institute of Technology, Newark, New Jersey 07102, United States
| | - Johanna M. Blake
- U.S. Geological Survey, 6700 Edith Blvd. NE, Albuquerque, New Mexico 87113, United States
| | - Cherie L. De Vore
- Department of Civil Engineering, MSC01 1070, University of New Mexico, Albuquerque, New Mexico 87131, United States
| | - Adrian J. Brearley
- Department of Earth and Planetary Sciences, MSC03 2040, University of New Mexico, Albuquerque, New Mexico 87131, United States
| | - Michael N. Spilde
- Department of Earth and Planetary Sciences, MSC03 2040, University of New Mexico, Albuquerque, New Mexico 87131, United States
| | - Stephen Cabaniss
- Department of Chemistry and Chemical Biology, MSC03 2060, University of New Mexico, Albuquerque, New Mexico 87131, United States
| | - Abdul-Mehdi S. Ali
- Department of Earth and Planetary Sciences, MSC03 2040, University of New Mexico, Albuquerque, New Mexico 87131, United States
| | - JoséM. Cerrato
- Department of Civil Engineering, MSC01 1070, University of New Mexico, Albuquerque, New Mexico 87131, United States
- Corresponding Authors Phone: (001) (505) 277-0870; fax: (001) (505) 277-1918;
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17
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Bergmann M, Sobral O, Pratas J, Graça MAS. Uranium toxicity to aquatic invertebrates: A laboratory assay. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 239:359-366. [PMID: 29674214 DOI: 10.1016/j.envpol.2018.04.007] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2017] [Revised: 03/24/2018] [Accepted: 04/02/2018] [Indexed: 06/08/2023]
Abstract
Uranium mining is an environmental concern because of runoff and the potential for toxic effects on the biota. To investigate uranium toxicity to freshwater invertebrates, we conducted a 96-h acute toxicity test to determine lethal concentrations (testing concentrations up to 262 mg L-1) for three stream invertebrates: a shredder caddisfly, Schizopelex festiva Rambur (Trichoptera, Sericostomatidae); a detritivorous isopod, Proasellus sp. (Isopoda, Asellidae); and a scraper gastropod, Theodoxus fluviatilis (Gastropoda, Neritidae). Next, we ran a chronic-toxicity test with the most tolerant species (S. festiva) to assess if uranium concentrations found in some local streams (up to 25 μg L-1) affect feeding, growth and respiration rates. Finally, we investigated whether S. festiva takes up uranium from the water and/or from ingested food. In the acute test, S. festiva survived in all uranium concentrations tested. LC50-96-h for Proasellus sp and T. fluviatilis were 142 mg L-1 and 24 mg L-1, respectively. Specimens of S. festiva exposed to 25 μg L-1 had 47% reduced growth compared with specimens under control conditions (21.5 ± 2.9 vs. 40.6 ± 4.9 μg of mass increase animal-1·day-1). Respiration rates (0.40 ± 0.03 μg O2·h-1·mg animal-1) and consumption rates (0.54 ± 0.05 μg μg animal-1·day-1; means ± SE) did not differ between treatments. Under laboratory conditions S. festiva accumulated uranium from both the water and the ingested food. Our results indicate that uranium can be less toxic than other metals or metalloids produced by mining activities. However, even at the low concentrations observed in streams affected by abandoned mines, uranium can impair physiological processes, is bioaccumulated, and is potentially transferred through food webs.
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Affiliation(s)
- Melissa Bergmann
- MARE, Marine and Environmental Sciences Centre, Department of Life Sciences, University of Coimbra, 3000-456 Coimbra, Portugal.
| | - Olimpia Sobral
- MARE, Marine and Environmental Sciences Centre, Department of Life Sciences, University of Coimbra, 3000-456 Coimbra, Portugal
| | - João Pratas
- MARE, Marine and Environmental Sciences Centre, Department of Earth Sciences, University of Coimbra, 3030-790 Coimbra, Portugal
| | - Manuel A S Graça
- MARE, Marine and Environmental Sciences Centre, Department of Life Sciences, University of Coimbra, 3000-456 Coimbra, Portugal
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18
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Adviento-Borbe MAA, Barnes BD, Iseyemi O, Mann AM, Reba ML, Robertson WJ, Massey JH, Teague TG. Water quality of surface runoff and lint yield in cotton under furrow irrigation in Northeast Arkansas. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 613-614:81-87. [PMID: 28910718 DOI: 10.1016/j.scitotenv.2017.09.020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Revised: 08/31/2017] [Accepted: 09/03/2017] [Indexed: 06/07/2023]
Abstract
Use of furrow irrigation in row crop production is a common practice through much of the Midsouth US and yet, nutrients can be transported off-site through surface runoff. A field study with cotton (Gossypium hirsutum, L.) was conducted to understand the impact of furrow tillage practices and nitrogen (N) fertilizer placement on characteristics of runoff water quality during the growing season. The experiment was designed as a randomized complete block design with conventional (CT) and conservation furrow tillage (FT) in combination with either urea (URN) broadcast or 32% urea ammonium nitrate (UAN) injected, each applied at 101kgNha-1. Concentrations of ammonium (NH4-N), nitrate (NO3-N), nitrite (NO2-N), and dissolved phosphorus (P) in irrigation runoff water and lint yields were measured in all treatments. The intensity and chemical form of nutrient losses were primarily controlled by water runoff volume and agronomic practice. Across tillage and fertilizer N treatments, median N concentrations in the runoff were <0.3mgNL-1, with NO3-N being relatively the highest among N forms. Concentrations of runoff dissolved P were <0.05mgPL-1 and were affected by volume of runoff water. Water pH, specific electrical conductivity, alkalinity and hardness were within levels that common to local irrigation water and less likely to impair pollution in waterways. Lint yields averaged 1111kgha-1 and were higher (P-value=0.03) in FT compared to CT treatments. Runoff volumes across irrigation events were greater (P-value=0.02) in CT than FT treatments, which increased NO3-N mass loads in CT treatments (394gNO3-Nha-1season-1). Nitrate-N concentrations in CT treatments were still low and pose little threat to N contaminations in waterways. The findings support the adoption of conservation practices for furrow tillage and N fertilizer placement that can reduce nutrient runoff losses in furrow irrigation systems.
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Affiliation(s)
- M Arlene A Adviento-Borbe
- Delta Water Management Research Unit, United States Department of Agriculture-Agricultural Research Services, 504 University Loop, Jonesboro, AR 72401, United States.
| | - Brittany D Barnes
- Rabo Agrifinance, 2600 Alexander Drive, Jonesboro, AR 72401, United States.
| | - Oluwayinka Iseyemi
- Delta Water Management Research Unit, United States Department of Agriculture-Agricultural Research Services, 504 University Loop, Jonesboro, AR 72401, United States
| | - Amanda M Mann
- Agricultural Experiment Station, University of Arkansas Division of Agriculture, PO Box 2340, State University, AR 72467, United States.
| | - Michele L Reba
- Delta Water Management Research Unit, United States Department of Agriculture-Agricultural Research Services, 504 University Loop, Jonesboro, AR 72401, United States.
| | - William J Robertson
- Crop, Soil & Environmental Science, University of Arkansas Division of Agriculture, 649 Jackson 917 Newport, AR 72112, United States.
| | - Joseph H Massey
- Delta Water Management Research Unit, United States Department of Agriculture-Agricultural Research Services, 504 University Loop, Jonesboro, AR 72401, United States.
| | - Tina G Teague
- Agricultural Experiment Station, University of Arkansas Division of Agriculture, PO Box 2340, State University, AR 72467, United States.
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Ferrari CR, do Nascimento HDAF, Rodgher S, Almeida T, Bruschi AL, Nascimento MRLD, Bonifácio RL. Effects of the discharge of uranium mining effluents on the water quality of the reservoir: an integrative chemical and ecotoxicological assessment. Sci Rep 2017; 7:13919. [PMID: 29066833 PMCID: PMC5655341 DOI: 10.1038/s41598-017-14100-w] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Accepted: 10/05/2017] [Indexed: 11/09/2022] Open
Abstract
The water quality of the Antas reservoir, under the influence of treated effluents from a uranium mining area Ore Treatment Unit (UTM) with acid mine drainage, was investigated. Samples were collected every 3 months from the Antas reservoir (CAB, P41-E and P14) and from the UTM (P41-S). Chemical and acute 48 h toxicity tests using Ceriodaphnia silvestrii and Daphnia magna analyses were carried out to determine the potential environmental risks due to discharging the uranium mine effluents into this reservoir. All the water samples taken from the treated effluent (P41-S) were positively correlated with elevated concentrations of uranium, manganese, aluminum, zinc and fluoride and with high electrical conductivity and pH values, being considered toxic. In November 2014 water samples taken from the reservoir showed chemical concentrations above the legislation limits for fluoride (4.5 mg L-1) uranium (0.082 mg L-1), sulfate (662.4 mg L-1), manganese (1.125 mg L-1) and aluminum (1.55 mg L-1), and in July 2015 for fluoride (2.55 mg L-1), uranium (0.01 mg L-1) and manganese (0.36 mg L-1). The extremely high average value for hardness (543.55 mg L-1) possibly reduced the toxicity potential of this chemical species mixture with respect to the bioindicators. The influence of the variation in water hardness on the toxicity of the cladocerans was discussed.
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Affiliation(s)
- Carla Rolim Ferrari
- Radioecology Laboratory, Poços de Caldas Laboratory, ‖ Brazilian Nuclear Energy Commission, Rodovia Poços de Caldas/Andradas km 13, Poços de Caldas, MG, 37719-005, Brazil.
| | - Heliana de Azevedo Franco do Nascimento
- Radioecology Laboratory, Poços de Caldas Laboratory, ‖ Brazilian Nuclear Energy Commission, Rodovia Poços de Caldas/Andradas km 13, Poços de Caldas, MG, 37719-005, Brazil
| | - Suzelei Rodgher
- São Paulo State University (UNESP). Institute of Science and Technology, São José dos Campos. Rodovia Presidente Dutra, Km 137, 8 Eugenio de Melo, São José dos Campos SP, 12247-004, Brazil
| | - Tito Almeida
- Community Ecology Laboratory, University of Vale do Itajaí, Rua Uruguay, 458, Itajaí, SC, 88302-202, Brazil
| | - Armando Luiz Bruschi
- Radioecology Laboratory, Poços de Caldas Laboratory, ‖ Brazilian Nuclear Energy Commission, Rodovia Poços de Caldas/Andradas km 13, Poços de Caldas, MG, 37719-005, Brazil
| | - Marcos Roberto Lopes do Nascimento
- Chemical Analyses Laboratory, Poços de Caldas Laboratory, Brazilian Nuclear Energy Commission, Rodovia Poços de Caldas/Andradas km 13, Poços de Caldas, MG, 37719-005, Brazil
| | - Rodrigo Leandro Bonifácio
- Chemical Analyses Laboratory, Poços de Caldas Laboratory, Brazilian Nuclear Energy Commission, Rodovia Poços de Caldas/Andradas km 13, Poços de Caldas, MG, 37719-005, Brazil
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van Dam RA, Hogan AC, Harford AJ. Development and implementation of a site-specific water quality limit for uranium in a high conservation value ecosystem. INTEGRATED ENVIRONMENTAL ASSESSMENT AND MANAGEMENT 2017; 13:765-777. [PMID: 27943587 DOI: 10.1002/ieam.1871] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Revised: 10/12/2016] [Accepted: 11/28/2016] [Indexed: 06/06/2023]
Abstract
Water quality guideline values (GVs) are a key tool for water quality assessments. Site-specific GVs, which incorporate data relevant to local conditions and organisms, provide a higher level of confidence that the GV will protect the aquatic ecosystem at a site compared to generic GVs. Site-specific GVs are, therefore, considered particularly suitable for sites of high sociopolitical or ecological importance. The present paper provides an example of the refinement of a site-specific GV for high ecological value aquatic ecosystems in Kakadu National Park, Northern Territory, Australia, to improve its site specificity and statistical robustness, thereby increasing confidence in its application. Uranium is a contaminant of concern for Ranger U mine, which releases water into Magela Creek and Gulungul Creek in Kakadu National Park. A site-specific GV for U has been applied, as a statutory limit, to Magela Creek since 2004 and to Gulungul Creek since 2015. The GV of 6 μg/L U was derived from toxicity data for 5 local species tested under local conditions. The acquisition of additional U data, including new information on the effect of DOC on U toxicity, enabled a revision of the site-specific U GV to 2.8 μg/L U and an ability to adjust the value on the basis of environmental concentrations of DOC. The revised GV has been adopted as the statutory limit, with the regulatory framework structured so the GV requires adjustment based on DOC concentration only when an exceedance occurs. Monitoring data for Magela Creek (2001-2013) and Gulungul Creek (2003-2013) downstream of the mine show that dissolved U has not exceeded 1 μg/L. Integr Environ Assess Manag 2017;13:765-777. © 2016 SETAC.
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Affiliation(s)
- Rick A van Dam
- Environmental Research Institute of the Supervising Scientist, Australian Government Department of the Environment and Energy, Darwin, Northern Territory, Australia
| | - Alicia C Hogan
- NRA Environmental Consultants, Cairns, Queensland, Australia
| | - Andrew J Harford
- Environmental Research Institute of the Supervising Scientist, Australian Government Department of the Environment and Energy, Darwin, Northern Territory, Australia
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Biosorption characteristics of Ceratophyllum demersum biomass for removal of uranium(VI) from an aqueous solution. J Radioanal Nucl Chem 2017. [DOI: 10.1007/s10967-017-5269-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Yuan SS, Lv ZM, Zhu AY, Zheng JL, Wu CW. Negative effect of chronic cadmium exposure on growth, histology, ultrastructure, antioxidant and innate immune responses in the liver of zebrafish: Preventive role of blue light emitting diodes. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2017; 139:18-26. [PMID: 28092736 DOI: 10.1016/j.ecoenv.2017.01.021] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Revised: 01/09/2017] [Accepted: 01/12/2017] [Indexed: 06/06/2023]
Abstract
The present study explored the possible preventive effects of blue light emitting diodes (LEDs) on cadmium (Cd)-induced oxidative stress and immunotoxicity in zebrafish. To this end, zebrafish were exposed to a white fluorescent bulb or blue LEDs (LDB, peak at 450nm, at an irradiance of 0.9W/m2), and 0 or 30µgL-1 waterborne Cd for 5 weeks. Growth performance, survival rate, and hepatic histology, ultrastructure, antioxidant and innate immune responses were determined in zebrafish. Cd exposure alone reduced growth and survival rate, and induced oxidative damage and changes in histology and ultrastructure. However, Cd exposure in combination with LDB apparently relieved these negative effects. The alleviation of adverse effects might result from the up-regulation of antioxidant and innate immune genes at transcriptional, translational, or post-translational levels. Cd exposure alone dramatically enhanced mRNA levels of nuclear transcription factor κB (NF-κB) and E2-related factor (Nrf2). However, compared to Cd exposure alone, Cd exposure in combination with LDB apparently down-regulated both genes. Taken together, our results suggest that chronic Cd exposure induced a negative effect on zebrafish, possibly involved in NF-κB-induced immunotoxicity and Nrf2-induced oxidative stress. Finally, for the first time, our data demonstrated that LDB could protect fish against Cd toxicity.
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Affiliation(s)
- Shuang-Shuang Yuan
- National Engineering Research Center of Marine Facilities Aquaculture, Zhejiang Ocean University, Zhoushan 316022, PR China
| | - Zhen-Ming Lv
- National Engineering Research Center of Marine Facilities Aquaculture, Zhejiang Ocean University, Zhoushan 316022, PR China
| | - Ai-Yi Zhu
- National Engineering Research Center of Marine Facilities Aquaculture, Zhejiang Ocean University, Zhoushan 316022, PR China
| | - Jia-Lang Zheng
- National Engineering Research Center of Marine Facilities Aquaculture, Zhejiang Ocean University, Zhoushan 316022, PR China.
| | - Chang-Wen Wu
- National Engineering Research Center of Marine Facilities Aquaculture, Zhejiang Ocean University, Zhoushan 316022, PR China.
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Favas PJC, Pratas J, Mitra S, Sarkar SK, Venkatachalam P. Biogeochemistry of uranium in the soil-plant and water-plant systems in an old uranium mine. THE SCIENCE OF THE TOTAL ENVIRONMENT 2016; 568:350-368. [PMID: 27314898 DOI: 10.1016/j.scitotenv.2016.06.024] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Revised: 06/04/2016] [Accepted: 06/04/2016] [Indexed: 06/06/2023]
Abstract
The present study highlights the uranium (U) concentrations in water-soil-plant matrices and the efficiency considering a heterogeneous assemblage of terrestrial and aquatic native plant species to act as the biomonitor and phytoremediator for environmental U-contamination in the Sevilha mine (uraniferous region of Beiras, Central Portugal). A total of 53 plant species belonging to 22 families was collected from 24 study sites along with ambient soil and/or water samples. The concentration of U showed wide range of variations in the ambient medium: 7.5 to 557mgkg(-1) for soil and 0.4 to 113μgL(-1) for water. The maximum potential of U accumulation was recorded in roots of the following terrestrial plants: Juncus squarrosus (450mgkg(-1) DW), Carlina corymbosa (181mgkg(-1) DW) and Juncus bufonius (39.9mgkg(-1) DW), followed by the aquatic macrophytes, namely Callitriche stagnalis (55.6mgkg(-1) DW) Lemna minor (53.0mgkg(-1) DW) and Riccia fluitans (50.6mgkg(-1) DW). Accumulation of U in plant tissues exhibited the following decreasing trend: root>leaves>stem>flowers/fruits and this confirms the unique efficiency of roots in accumulating this radionuclide from host soil/sediment (phytostabilization). Overall, the accumulation pattern in the studied aquatic plants (L. minor, R. fluitans, C. stagnalis and Lythrum portula) dominated over most of the terrestrial counterpart. Among terrestrial plants, the higher mean bioconcentration factor (≈1 in roots/rhizomes of C. corymbosa and J. squarrosus) and translocation factor (31 in Andryala integrifolia) were encountered in the representing families Asteraceae and Juncaceae. Hence, these terrestrial plants can be treated as the promising candidates for the development of the phytostabilization or phytoextraction methodologies based on the accumulation, abundance and biomass production.
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Affiliation(s)
- Paulo J C Favas
- University of Trás-os-Montes e Alto Douro, UTAD, School of Life Sciences and the Environment, Quinta de Prados, 5000-801 Vila Real, Portugal; MARE, Marine and Environmental Sciences Centre, Faculty of Sciences and Technology, University of Coimbra, 3004-517 Coimbra, Portugal.
| | - João Pratas
- MARE, Marine and Environmental Sciences Centre, Faculty of Sciences and Technology, University of Coimbra, 3004-517 Coimbra, Portugal; University of Coimbra, Faculty of Sciences and Technology, Department of Earth Sciences, 3001-401 Coimbra, Portugal; Instituto de Geologia e Petróleo de Timor Leste, Timor-Leste
| | - Soumita Mitra
- University of Calcutta, Department of Marine Science, 35, Ballygunge Circular Road, Calcutta 700019, West Bengal, India
| | - Santosh Kumar Sarkar
- University of Calcutta, Department of Marine Science, 35, Ballygunge Circular Road, Calcutta 700019, West Bengal, India
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Altier A, Jiménez-Piedrahita M, Rey-Castro C, Cecilia J, Galceran J, Puy J. Accumulation of Mg to Diffusive Gradients in Thin Films (DGT) Devices: Kinetic and Thermodynamic Effects of the Ionic Strength. Anal Chem 2016; 88:10245-10251. [PMID: 27660851 DOI: 10.1021/acs.analchem.6b02961] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Alexandra Altier
- Departament de Química and ‡Departament de Matemàtica, Universitat de Lleida and AGROTECNIO, Rovira Roure 191, 25198, Lleida, Spain
| | - Martín Jiménez-Piedrahita
- Departament de Química and ‡Departament de Matemàtica, Universitat de Lleida and AGROTECNIO, Rovira Roure 191, 25198, Lleida, Spain
| | - Carlos Rey-Castro
- Departament de Química and ‡Departament de Matemàtica, Universitat de Lleida and AGROTECNIO, Rovira Roure 191, 25198, Lleida, Spain
| | - Joan Cecilia
- Departament de Química and ‡Departament de Matemàtica, Universitat de Lleida and AGROTECNIO, Rovira Roure 191, 25198, Lleida, Spain
| | - Josep Galceran
- Departament de Química and ‡Departament de Matemàtica, Universitat de Lleida and AGROTECNIO, Rovira Roure 191, 25198, Lleida, Spain
| | - Jaume Puy
- Departament de Química and ‡Departament de Matemàtica, Universitat de Lleida and AGROTECNIO, Rovira Roure 191, 25198, Lleida, Spain
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Cordeiro C, Favas PJC, Pratas J, Sarkar SK, Venkatachalam P. Uranium accumulation in aquatic macrophytes in an uraniferous region: Relevance to natural attenuation. CHEMOSPHERE 2016; 156:76-87. [PMID: 27164268 DOI: 10.1016/j.chemosphere.2016.04.105] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Revised: 04/18/2016] [Accepted: 04/25/2016] [Indexed: 06/05/2023]
Abstract
Phytoremediation potential of uranium (U) was investigated by submerged, free-floating and rooted emergent native aquatic macrophytes inhabiting along the streams of Horta da Vilariça, a uraniferous geochemical region of NE Portugal. The work has been undertaken with the following objectives: (i) to relate the U concentrations in water-sediment-plant system; and (ii) to identify the potentialities of aquatic plants to remediate U-contaminated waters based on accumulation pattern. A total of 25 plant species culminating 233 samples was collected from 15 study points along with surface water and contiguous sediments. Concentrations of U showed wide range of variations both in waters (0.61-5.56 μg L(-1), mean value 1.98 μg L(-1)) and sediments (124-23,910 μg kg(-1), mean value 3929 μg kg(-1)) and this is also reflected in plant species examined. The plant species exhibited the ability to accumulate U several orders of magnitude higher than the surrounding water. Maximum U concentrations was recorded in the bryophyte Scorpiurium deflexifolium (49,639 μg kg(-1)) followed by Fontinalis antipyretica (35,771 μg kg(-1)), shoots of Rorippa sylvestris (33,837 μg kg(-1)), roots of Oenanthe crocata (17,807 μg kg(-1)) as well as in Nasturtium officinale (10,995 μg kg(-1)). Scorpiurium deflexifolium displayed a high bioconcentration factor (BF) of ∼2.5 × 10(4) (mean value). The species Fontinalis antipyretica, Nasturtium officinale (roots) and Rorippa sylvestris (shoots) exhibited the mean BFs of 1.7 × 10(4), 5 × 10(3) and 4.8 × 10(3) respectively. Maximum translocation factor (TF) was very much pronounced in the rooted perennial herb Rorippa sylvestris showing extreme ability to transport U for the shoots and seems to be promising candidate to be used as bioindicator species.
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Affiliation(s)
- Cristina Cordeiro
- MARE, Marine and Environmental Sciences Centre, Faculty of Sciences and Technology, University of Coimbra, 3004-517, Coimbra, Portugal
| | - Paulo J C Favas
- MARE, Marine and Environmental Sciences Centre, Faculty of Sciences and Technology, University of Coimbra, 3004-517, Coimbra, Portugal; University of Trás-os-Montes e Alto Douro, UTAD, School of Life Sciences and the Environment, Quinta de Prados, 5000-801, Vila Real, Portugal.
| | - João Pratas
- MARE, Marine and Environmental Sciences Centre, Faculty of Sciences and Technology, University of Coimbra, 3004-517, Coimbra, Portugal; University of Coimbra, Faculty of Sciences and Technology, Department of Earth Sciences, 3001-401, Coimbra, Portugal; Instituto de Geologia e Petróleo de Timor Leste, Timor Leste
| | - Santosh Kumar Sarkar
- University of Calcutta, Department of Marine Science, 35, Ballygunge Circular Road, Calcutta, 700019, West Bengal, India
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Yi ZJ, Yao J, Chen HL, Wang F, Yuan ZM, Liu X. Uranium biosorption from aqueous solution onto Eichhornia crassipes. JOURNAL OF ENVIRONMENTAL RADIOACTIVITY 2016; 154:43-51. [PMID: 26854553 DOI: 10.1016/j.jenvrad.2016.01.012] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2015] [Revised: 01/09/2016] [Accepted: 01/23/2016] [Indexed: 06/05/2023]
Abstract
Batch experiments were conducted to investigate the biosorption of U(VI) from aqueous solutions onto the nonliving biomass of an aquatic macrophyte Eichhornia crassipes. The results showed that the adsorption of U(VI) onto E. crassipes was highly pH-dependent and the best pH for U(VI) removal was 5.5. U(VI) adsorption proceeded rapidly with an equilibrium time of 30 min and conformed to pseudo-second-order kinetics. The Langmuir isotherm model was determined to best describe U(VI) biosorption with a maximum monolayer adsorption capacity of 142.85 mg/g. Thermodynamic calculation results indicated that the U(VI) biosorption process was spontaneous and endothermic. Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy analysis implied that the functional groups (amino, hydroxyl, and carboxyl) may be responsible for the U(VI) adsorption process, in which the coordination and ion exchange mechanisms could be involved. We conclude that E. crassipes biomass is a promising biosorbent for the removal of uranium pollutants.
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Affiliation(s)
- Zheng-ji Yi
- Key Laboratory of Functional Organometallic Materials of College of Hunan Province, Department of Chemistry and Material Science, Hengyang Normal University, Hengyang 421008, China; School of Civil and Environmental Engineering, and National International Cooperation Base on Environment and Energy, University of Science and Technology Beijing, Xueyuan Road No. 30, Haidian District, Beijing 100083, China
| | - Jun Yao
- School of Civil and Environmental Engineering, and National International Cooperation Base on Environment and Energy, University of Science and Technology Beijing, Xueyuan Road No. 30, Haidian District, Beijing 100083, China.
| | - Hui-lun Chen
- School of Civil and Environmental Engineering, and National International Cooperation Base on Environment and Energy, University of Science and Technology Beijing, Xueyuan Road No. 30, Haidian District, Beijing 100083, China
| | - Fei Wang
- School of Civil and Environmental Engineering, and National International Cooperation Base on Environment and Energy, University of Science and Technology Beijing, Xueyuan Road No. 30, Haidian District, Beijing 100083, China
| | - Zhi-min Yuan
- School of Civil and Environmental Engineering, and National International Cooperation Base on Environment and Energy, University of Science and Technology Beijing, Xueyuan Road No. 30, Haidian District, Beijing 100083, China
| | - Xing Liu
- Key Laboratory of Functional Organometallic Materials of College of Hunan Province, Department of Chemistry and Material Science, Hengyang Normal University, Hengyang 421008, China
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Nie X, Dong F, Liu M, Sun S, Yang G, Zhang W, Qin Y, Ma J, Huang R, Gong J. Removel of Uranium from Aqueous Solutions by Spirodela Punctata as the Mechanism of Biomineralization. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.proenv.2016.02.060] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Horemans N, Van Hees M, Saenen E, Van Hoeck A, Smolders V, Blust R, Vandenhove H. Influence of nutrient medium composition on uranium toxicity and choice of the most sensitive growth related endpoint in Lemna minor. JOURNAL OF ENVIRONMENTAL RADIOACTIVITY 2016; 151 Pt 2:427-37. [PMID: 26187266 DOI: 10.1016/j.jenvrad.2015.06.024] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2015] [Revised: 06/20/2015] [Accepted: 06/25/2015] [Indexed: 05/21/2023]
Abstract
Uranium (U) toxicity is known to be highly dependent on U speciation and bioavailability. To assess the impact of uranium on plants, a growth inhibition test was set up in the freshwater macrophyte Lemna minor. First growth media with different compositions were tested in order to find a medium fit for testing U toxicity in L. minor. Following arguments were used for medium selection: the ability to sustain L. minor growth, a high solubility of U in the medium and a high percentage of the more toxic U-species namely UO2(2+). Based on these selection criteria a with a low phosphate concentration of 0.5 mg L(-1) and supplemented with 5 mM MES (2-(N-morpholino)ethanesulfonic acid) to ensure pH stability was chosen. This medium also showed highest U toxicity compared to the other tested media. Subsequently a full dose response curve for U was established by exposing L. minor plants to U concentrations ranging from 0.05 μM up to 150 μM for 7 days. Uranium was shown to adversely affect growth of L. minor in a dose dependent manner with EC10, EC30 and EC50 values ranging between 1.6 and 4.8 μM, 7.7-16.4 μM and 19.4-37.2 μM U, respectively, depending on the growth endpoint. Four different growth related endpoints were tested: frond area, frond number, fresh weight and dry weight. Although differences in relative growth rates and associated ECx-values calculated on different endpoints are small (maximal twofold difference), frond area is recommended to be used to measure U-induced growth effects as it is a sensitive growth endpoint and easy to measure in vivo allowing for measurements over time.
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Affiliation(s)
- Nele Horemans
- Belgian Nuclear Research Centre (SCK•CEN), Boeretang 200, B-2400, Mol, Belgium; Hasselt University, Centre for Environmental Sciences, Agoralaan gebouw D, B-3590, Diepenbeek, Belgium.
| | - May Van Hees
- Belgian Nuclear Research Centre (SCK•CEN), Boeretang 200, B-2400, Mol, Belgium
| | - Eline Saenen
- Belgian Nuclear Research Centre (SCK•CEN), Boeretang 200, B-2400, Mol, Belgium
| | - Arne Van Hoeck
- Belgian Nuclear Research Centre (SCK•CEN), Boeretang 200, B-2400, Mol, Belgium
| | - Valérie Smolders
- Belgian Nuclear Research Centre (SCK•CEN), Boeretang 200, B-2400, Mol, Belgium
| | - Ronny Blust
- Department of Biology, University of Antwerp (UA), Groenenborgerlaan 171, B-2020, Antwerp, Belgium
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Lofts S, Fevrier L, Horemans N, Gilbin R, Bruggeman C, Vandenhove H. Assessment of co-contaminant effects on uranium and thorium speciation in freshwater using geochemical modelling. JOURNAL OF ENVIRONMENTAL RADIOACTIVITY 2015; 149:99-109. [PMID: 26225834 DOI: 10.1016/j.jenvrad.2015.07.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2015] [Revised: 07/13/2015] [Accepted: 07/13/2015] [Indexed: 05/29/2023]
Abstract
Speciation modelling of uranium (as uranyl) and thorium, in four freshwaters impacted by mining activities, was used to evaluate (i) the influence of the co-contaminants present on the predicted speciation, and (ii) the influence of using nine different model/database combinations on the predictions. Generally, co-contaminants were found to have no significant effects on speciation, with the exception of Fe(III) in one system, where formation of hydrous ferric oxide and adsorption of uranyl to its surface impacted the predicted speciation. Model and database choice on the other hand clearly influenced speciation prediction. Complexes with dissolved organic matter, which could be simulated by three of the nine model/database combinations, were predicted to be important in a slightly acidic, soft water. Model prediction of uranyl and thorium speciation needs to take account of database comprehensiveness and cohesiveness, including the capability of the model and database to simulate interactions with dissolved organic matter. Measurement of speciation in natural waters is needed to provide data that may be used to assess and improve model capabilities and to better constrain the type of predictive modelling work presented here.
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Affiliation(s)
- Stephen Lofts
- NERC Centre for Ecology and Hydrology, Lancaster Environment Centre, Bailrigg, Lancaster LA1 4AP, UK.
| | - Laureline Fevrier
- IRSN, DEI/SECRE/LRE-Bât 186, B.P.3, Cadarache Center, F-13115 Saint-Paul-lez-Durance Cedex, France.
| | - Nele Horemans
- Belgian Nuclear Research Centre SCK•CEN, BE-2400 Mol, Belgium.
| | - Rodolphe Gilbin
- IRSN, DEI/SECRE/LRE-Bât 186, B.P.3, Cadarache Center, F-13115 Saint-Paul-lez-Durance Cedex, France.
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Goulet RR, Thompson PA, Serben KC, Eickhoff CV. Impact of environmentally based chemical hardness on uranium speciation and toxicity in six aquatic species. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2015; 34:562-74. [PMID: 25475484 PMCID: PMC4365698 DOI: 10.1002/etc.2834] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2014] [Revised: 06/13/2014] [Accepted: 11/30/2014] [Indexed: 05/08/2023]
Abstract
Treated effluent discharge from uranium (U) mines and mills elevates the concentrations of U, calcium (Ca), magnesium (Mg), and sulfate (SO4 (2-) ) above natural levels in receiving waters. Many investigations on the effect of hardness on U toxicity have been experiments on the combined effects of changes in hardness, pH, and alkalinity, which do not represent water chemistry downstream of U mines and mills. Therefore, more toxicity studies with water chemistry encountered downstream of U mines and mills are necessary to support predictive assessments of impacts of U discharge to the environment. Acute and chronic U toxicity laboratory bioassays were realized with 6 freshwater species in waters of low alkalinity, circumneutral pH, and a range of chemical hardness as found in field samples collected downstream of U mines and mills. In laboratory-tested waters, speciation calculations suggested that free uranyl ion concentrations remained constant despite increasing chemical hardness. When hardness increased while pH remained circumneutral and alkalinity low, U toxicity decreased only to Hyalella azteca and Pseudokirchneriella subcapitata. Also, Ca and Mg did not compete with U for the same uptake sites. The present study confirms that the majority of studies concluding that hardness affected U toxicity were in fact studies in which alkalinity and pH were the stronger influence. The results thus confirm that studies predicting impacts of U downstream of mines and mills should not consider chemical hardness. Environ Toxicol Chem 2015;34:562-574. © 2014 The Authors. Published by Wiley Periodicals, Inc. on behalf of SETAC.
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Affiliation(s)
- Richard R Goulet
- Canadian Nuclear Safety Commission, OttawaOntario, Canada
- *Address correspondence to
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Horemans N, Van Hees M, Van Hoeck A, Saenen E, De Meutter T, Nauts R, Blust R, Vandenhove H. Uranium and cadmium provoke different oxidative stress responses in Lemna minor L. PLANT BIOLOGY (STUTTGART, GERMANY) 2015; 17 Suppl 1:91-100. [PMID: 25073449 DOI: 10.1111/plb.12222] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2014] [Accepted: 05/13/2014] [Indexed: 05/10/2023]
Abstract
Common duckweed (Lemna minor L.) is ideally suited to test the impact of metals on freshwater vascular plants. Literature on cadmium (Cd) and uranium (U) oxidative responses in L. minor are sparse or, for U, non-existent. It was hypothesised that both metals impose concentration-dependent oxidative stress and growth retardation on L. minor. Using a standardised 7-day growth inhibition test, the adverse impact of these metals on L. minor growth was confirmed, with EC50 values for Cd and U of 24.1 ± 2.8 and 29.5 ± 1.9 μm, respectively, and EC10 values of 1.5 ± 0.2 and 6.5 ± 0.9 μm, respectively. The metal-induced oxidative stress response was compared through assessing the activity of different antioxidative enzymes [catalase, glutathione reductase, superoxide dismutase (SOD), ascorbate peroxidase (APOD), guaiacol peroxidase (GPOD) and syringaldizyne peroxidase (SPOD)]. Significant changes in almost all antioxidative enzymes indicated their importance in counteracting the U- and Cd-imposed oxidative burden. However, some striking differences were also observed. For activity of APODs and SODs, a biphasic but opposite response at low Cd compared to U concentrations was found. In addition, Cd (0.5-20 μm) strongly enhanced plant GPOD activity, whereas U inhibited it. Finally, in contrast to Cd, U up to 10 μm increased the level of chlorophyll a and b and carotenoids. In conclusion, although U and Cd induce similar growth arrest in L. minor, the U-induced oxidative stress responses, studied here for the first time, differ greatly from those of Cd.
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Affiliation(s)
- N Horemans
- Belgian Nuclear Research Institute, Environmental Health and Safety, Biosphere Impact Studies, Mol, Belgium; Centre for Environmental Sciences, Hasselt University, Diepenbeek, Belgium
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Favas PJC, Pratas J, Varun M, D'Souza R, Paul MS. Accumulation of uranium by aquatic plants in field conditions: prospects for phytoremediation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2014; 470-471:993-1002. [PMID: 24239820 DOI: 10.1016/j.scitotenv.2013.10.067] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2013] [Revised: 09/21/2013] [Accepted: 10/21/2013] [Indexed: 06/02/2023]
Abstract
A study was undertaken to determine Uranium concentrations in water and aquatic plants in the uraniferous region of Beiras, Central Portugal. Samples were collected from running water (n=200) at places where aquatic species were observed. Plant samples were collected from 28 species of submerged, free-floating and rooted emergent plants including 2 bryophytes and 1 pteridophyte. Uranium concentrations in surface waters ranged from 0.23 to 1,217 μg L(-1). The aquatic plant species studied, including several previously untested species, exhibited the ability to accumulate U in concentrations many times that of the ambient water. In general submerged plants exhibited higher U content followed by rooted emergent and free floating species. The highest U concentrations were observed in the bryophyte Fontinalis antipyretica (up to 4,979 mg kg(-1)) followed by Callitriche stagnalis (1963mgkg(-1)), Callitriche hamulata (379 mg kg(-1)), Ranunculus peltatus subsp. saniculifolius (243 mg kg(-1)), Callitriche lusitanica (218 mg kg(-1)), and Ranunculus trichophyllus (65.8 mg kg(-1)). In two out of three rooted emergent species U seemed to be preferentially partitioned in rhizome/roots with highest rhizome U content recorded in Typha latifolia (380 mg kg(-1)). Among the free-floating species, the highest U content (42.5 mg kg(-1)) was seen in Lemna minor. The bryophyte F. antipyretica and Callitrichaceae members seem to be promising candidates for the development of phytofiltration methodologies based on U accumulation, abundance and biomass production.
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Affiliation(s)
- Paulo J C Favas
- School of Life Sciences and the Environment, University of Trás-os-Montes e Alto Douro, 5001-801 Vila Real, Portugal; IMAR-CMA Marine and Environmental Research Centre, Faculty of Sciences and Technology, University of Coimbra, 3001-401 Coimbra, Portugal.
| | - João Pratas
- Department of Earth Sciences, Faculty of Sciences and Technology, University of Coimbra, 3001-401 Coimbra, Portugal; IMAR-CMA Marine and Environmental Research Centre, Faculty of Sciences and Technology, University of Coimbra, 3001-401 Coimbra, Portugal
| | - Mayank Varun
- Department of Botany, St. John's College, Agra 282 002, India
| | - Rohan D'Souza
- Department of Botany, St. John's College, Agra 282 002, India
| | - Manoj S Paul
- Department of Botany, St. John's College, Agra 282 002, India
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Herlory O, Bonzom JM, Gilbin R. Sensitivity evaluation of the green alga Chlamydomonas reinhardtii to uranium by pulse amplitude modulated (PAM) fluorometry. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2013; 140-141:288-294. [PMID: 23851055 DOI: 10.1016/j.aquatox.2013.06.007] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2013] [Revised: 06/02/2013] [Accepted: 06/08/2013] [Indexed: 06/02/2023]
Abstract
Although ecotoxicological studies tend to address the toxicity thresholds of uranium in freshwaters, there is a lack of information on the effects of the metal on physiological processes, particularly in aquatic plants. Knowing that uranium alters photosynthesis via impairment of the water photo-oxidation process, we determined whether pulse amplitude modulated (PAM) fluorometry was a relevant tool for assessing the impact of uranium on the green alga Chlamydomonas reinhardtii and investigated how and to what extent uranium hampered photosynthetic performance. Photosynthetic activity and quenching were assessed from fluorescence induction curves generated by PAM fluorometry, after 1 and 5h of uranium exposure in controlled conditions. The oxygen-evolving complex (OEC) of PSII was identified as the primary action site of uranium, through alteration of the water photo-oxidation process as revealed by F0/Fv. Limiting re-oxidation of the plastoquinone pool, uranium impaired the electron flux between the photosystems until almost complete inhibition of the PSII quantum efficiency ( [Formula: see text] , EC50=303 ± 64 μg UL(-1) after 5h of exposure) was observed. Non-photochemical quenching (qN) was identified as the most sensitive fluorescence parameter (EC50=142 ± 98 μg UL(-1) after 5h of exposure), indicating that light energy not used in photochemistry was dissipated in non-radiative processes. It was shown that parameters which stemmed from fluorescence induction kinetics are valuable indicators for evaluating the impact of uranium on PSII in green algae. PAM fluorometry provided a rapid and reasonably sensitive method for assessing stress response to uranium in microalgae.
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Affiliation(s)
- Olivier Herlory
- IRSN-Laboratoire d'Ecotoxicologie des Radionucléides, Centre de Cadarache, BP3, 13115 Saint Paul lez Durance, France.
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