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Leaphart JC, Abercrombie SA, Borchert EJ, Bryan AL, Beasley JC. Bioaccumulation of Mercury and Radiocesium in Waterfowl Introduced to a Site with Legacy Contamination. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2022; 41:2479-2487. [PMID: 35866467 PMCID: PMC9804915 DOI: 10.1002/etc.5444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/01/2022] [Revised: 01/31/2022] [Accepted: 07/19/2022] [Indexed: 06/15/2023]
Abstract
Despite the propensity of waterfowl species to readily accumulate anthropogenic contaminants within polluted environments, few studies have examined bioaccumulation rates over time when entering such a contaminated site. We examined mercury (Hg) and radiocesium (137 Cs) bioaccumulation over time in two waterfowl species released into a wetland system containing legacy contamination on the US Department of Energy's Savannah River Site in South Carolina. Released birds were collected at select time intervals over an exposure period of 94 days. We quantified total Hg concentrations in blood, muscle, and liver tissues, and 137 Cs activity in whole-body and muscle tissues. The relationship between the contaminant burdens of different body tissue types was examined over time. Likely a result of microhabitat selection, mallards in our study readily accumulated both Hg and 137 Cs at consistent rates over time within our study system, while ring-neck ducks did not. The findings demonstrated that whole blood can be used as a robust, nondestructive sampling alternative to estimate Hg burdens within muscle and liver, and whole-body 137 Cs activity is a good predictor of muscle burdens. Understanding such bioaccumulation information in waterfowl is useful for the assessment of the potential health risk in wildlife, as well as being important for human risk assessment toward the consumption of popular game species. Environ Toxicol Chem 2022;41:2479-2487. © 2022 The Authors. Environmental Toxicology and Chemistry published by Wiley Periodicals LLC on behalf of SETAC.
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Affiliation(s)
- James C. Leaphart
- Savannah River Ecology LaboratoryUniversity of GeorgiaAikenSouth CarolinaUSA
- Warnell School of Forestry and Natural ResourcesUniversity of GeorgiaAthensGeorgiaUSA
| | | | - Ernest J. Borchert
- Savannah River Ecology LaboratoryUniversity of GeorgiaAikenSouth CarolinaUSA
- Warnell School of Forestry and Natural ResourcesUniversity of GeorgiaAthensGeorgiaUSA
| | - Albert L. Bryan
- Savannah River Ecology LaboratoryUniversity of GeorgiaAikenSouth CarolinaUSA
| | - James C. Beasley
- Savannah River Ecology LaboratoryUniversity of GeorgiaAikenSouth CarolinaUSA
- Warnell School of Forestry and Natural ResourcesUniversity of GeorgiaAthensGeorgiaUSA
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Rahman MS, Hasan MS, Nitai AS, Nam S, Karmakar AK, Ahsan MS, Shiddiky MJA, Ahmed MB. Recent Developments of Carboxymethyl Cellulose. Polymers (Basel) 2021; 13:1345. [PMID: 33924089 PMCID: PMC8074295 DOI: 10.3390/polym13081345] [Citation(s) in RCA: 156] [Impact Index Per Article: 52.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 04/15/2021] [Accepted: 04/16/2021] [Indexed: 12/22/2022] Open
Abstract
Carboxymethyl cellulose (CMC) is one of the most promising cellulose derivatives. Due to its characteristic surface properties, mechanical strength, tunable hydrophilicity, viscous properties, availability and abundance of raw materials, low-cost synthesis process, and likewise many contrasting aspects, it is now widely used in various advanced application fields, for example, food, paper, textile, and pharmaceutical industries, biomedical engineering, wastewater treatment, energy production, and storage energy production, and storage and so on. Many research articles have been reported on CMC, depending on their sources and application fields. Thus, a comprehensive and well-organized review is in great demand that can provide an up-to-date and in-depth review on CMC. Herein, this review aims to provide compact information of the synthesis to the advanced applications of this material in various fields. Finally, this article covers the insights of future CMC research that could guide researchers working in this prominent field.
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Affiliation(s)
- Md. Saifur Rahman
- Department of Chemistry and Biochemistry, The University of Texas at El Paso, El Paso, TX 79968, USA
| | - Md. Saif Hasan
- Department of Applied Chemistry and Chemical Engineering, University of Rajshahi, Rajshahi 6205, Bangladesh; (M.S.H.); (A.S.N.); (A.K.K.); (M.S.A.)
| | - Ashis Sutradhar Nitai
- Department of Applied Chemistry and Chemical Engineering, University of Rajshahi, Rajshahi 6205, Bangladesh; (M.S.H.); (A.S.N.); (A.K.K.); (M.S.A.)
| | - Sunghyun Nam
- United States Department of Agriculture, Agricultural Research Service, Southern Regional Research Center, 1100 Robert E. Lee Boulevard, New Orleans, LA 70124, USA;
| | - Aneek Krishna Karmakar
- Department of Applied Chemistry and Chemical Engineering, University of Rajshahi, Rajshahi 6205, Bangladesh; (M.S.H.); (A.S.N.); (A.K.K.); (M.S.A.)
| | - Md. Shameem Ahsan
- Department of Applied Chemistry and Chemical Engineering, University of Rajshahi, Rajshahi 6205, Bangladesh; (M.S.H.); (A.S.N.); (A.K.K.); (M.S.A.)
| | - Muhammad J. A. Shiddiky
- School of Environment and Science (ESC) and Queensland Micro- and Nanotechnology Centre (QMNC), Griffith University, Nathan 4111, Australia;
| | - Mohammad Boshir Ahmed
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology, Gwangju 61005, Korea
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Hossain F. Contaminated aquatic sediments. WATER ENVIRONMENT RESEARCH : A RESEARCH PUBLICATION OF THE WATER ENVIRONMENT FEDERATION 2020; 92:1794-1804. [PMID: 33459448 DOI: 10.1002/wer.1436] [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: 04/30/2020] [Revised: 07/30/2020] [Accepted: 08/08/2020] [Indexed: 06/12/2023]
Abstract
Aquatic sediments are contaminated by different anthropogenic activities and natural deposition. This review manuscript has discussed on published manuscript in 2019 based on monitoring and identification of contaminants, GIS application and isotopic evaluation for monitoring of pollutants, physicochemical and biochemical fate and transport of the pollutants as well as remediation and toxicity analysis so that environmental and ecological impacts due to pollution can be minimized.
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Affiliation(s)
- Fahim Hossain
- Department of Environmental Engineering, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
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Leaphart JC, Korotasz AM, Bryan AL, Beasley JC. Environmental fate of radiocesium in biota inhabiting a contaminated ecosystem on the U.S. Department of Energy's Savannah River Site. JOURNAL OF ENVIRONMENTAL RADIOACTIVITY 2020; 222:106321. [PMID: 32892897 DOI: 10.1016/j.jenvrad.2020.106321] [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: 03/30/2020] [Revised: 05/25/2020] [Accepted: 05/27/2020] [Indexed: 06/11/2023]
Abstract
Although biomagnification of radiocesium (137Cs) has been reported in food webs, most previous research has been limited to select trophic linkages. Few studies have included a comprehensive survey of fauna associated with aquatic, semi-aquatic, and terrestrial habitats within a single study framework. The objectives of this study were to advance our understanding of the dynamics of 137Cs accumulation within food webs by quantifying 137Cs activity across a wide range of biota found within a contaminated canal, as well as test the hypothesis that life-stage and body size influence 137Cs bioaccumulation in select herpetofauna. With extensive sampling across multiple taxa collected from a contaminated canal system and associated floodplain on the Savannah River Site, we assessed 137Cs activity and stable nitrogen isotopes for both aquatic organisms that were restricted to the contaminated effluent canal, and semi-aquatic organisms able to move freely between the contaminated canal and the adjacent uncontaminated terrestrial habitat. We found 137Cs activity to be highly variable among species, with evidence for and against biomagnification in semi-aquatic and aquatic organisms, respectively. Furthermore, 137Cs activity decreased with life stage and body size in bullfrogs (Lithobates catesbeianus), despite post-metamorphic bullfrogs having a more carnivorous diet compared to tadpoles, while cottonmouths (Agkistrodon piscivorus) retained similar 137Cs activity regardless of their age and size. Although evidence of biomagnification has been observed in some contaminated systems, results of our study suggest the extent to which 137Cs biomagnifies within food webs is context-dependent and likely influenced by a suite of biotic and abiotic factors. Further, our data indicate sampling of a broad suite of species and environmental attributes are needed to elucidate the fate and dynamics of anthropogenic pollutants within contaminated ecosystems.
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Affiliation(s)
- James C Leaphart
- University of Georgia, Savannah River Ecology Laboratory, Aiken, SC, 29802, USA; University of Georgia, Daniel B. Warnell School of Forestry and Natural Resources, Athens, GA, 30602, USA.
| | - Alexis M Korotasz
- University of Georgia, Savannah River Ecology Laboratory, Aiken, SC, 29802, USA
| | - Albert L Bryan
- University of Georgia, Savannah River Ecology Laboratory, Aiken, SC, 29802, USA
| | - James C Beasley
- University of Georgia, Savannah River Ecology Laboratory, Aiken, SC, 29802, USA; University of Georgia, Daniel B. Warnell School of Forestry and Natural Resources, Athens, GA, 30602, USA
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Haskins DL, Bryan AL. Radiocesium ( 137Cs) concentrations in the two-toed amphiuma (Amphiuma means) and the lesser siren (Siren intermedia). JOURNAL OF ENVIRONMENTAL RADIOACTIVITY 2020; 213:106107. [PMID: 31751801 DOI: 10.1016/j.jenvrad.2019.106107] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Revised: 09/26/2019] [Accepted: 11/11/2019] [Indexed: 06/10/2023]
Abstract
This study sought to determine radiocesium (137Cs) concentrations in two species of aquatic salamanders - the two-toed amphiuma (Amphiuma means) and the lesser siren (Siren intermedia) on the Savannah River Site. Concentrations (137Cs Bq/g, dry wt) of the two species were similar at both 137Cs-contaminated (A. means = 0.733 ± 0.242, n = 5; S. intermedia = 0.839 ± 0.722, n = 5) and reference sites (A. means = 0.028 ± 0.020, n = 5; S. intermedia = 0.042 ± 0.027, n = 11). Salamanders captured in areas impacted by 137Cs contamination exhibited significantly higher 137Cs concentrations than individuals captured at reference sites (U = 146, p < 0.001). Salamander size (snout-vent length) was not correlated with whole-body 137Cs. An analysis of our data using the ERICA tool suggests that negative impacts due to 137Cs exposure are unlikely in these species. Overall, these data indicate that A. means and S. intermedia inhabiting contaminated sites bioaccumulate but do not biomagnify 137Cs.
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Affiliation(s)
- David L Haskins
- Savannah River Ecology Lab, University of Georgia, Drawer E, Aiken, SC, 29802, USA; Warnell School of Forestry and Natural Resources, University of Georgia, Athens, GA, 30602, USA.
| | - Albert L Bryan
- Savannah River Ecology Lab, University of Georgia, Drawer E, Aiken, SC, 29802, USA
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Zhang N, Chen S, Hu J, Shi J, Guo Y, Deng T. Robust and recyclable sodium carboxymethyl cellulose-ammonium phosphomolybdate composites for cesium removal from wastewater. RSC Adv 2020; 10:6139-6145. [PMID: 35496001 PMCID: PMC9049696 DOI: 10.1039/c9ra09803h] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2019] [Accepted: 01/04/2020] [Indexed: 11/21/2022] Open
Abstract
A novel, facilely prepared, recyclable sodium carboxymethyl cellulose-ammonium phosphomolybdate composite (CMC-AMP) was synthesized by chemical cross-linking and used for Cs+ removal. The effects of adsorbent dosage, pH value, initial Cs+ concentration, contact time, temperature and competitive ions on adsorption were investigated. The results showed that CMC-AMP with good mechanical properties could effectively adsorb Cs+ in a wide pH range. In addition, the adsorption process of CMC-AMP was better fitted with the Lagergren first-second model and Langmuir isotherm model. Furthermore, CMC-AMP can be reused five times using ammonium chloride as the eluent without an obvious decrease in absorption activity. The results reveal that CMC-AMP can be used as a low cost and recyclable Cs+ adsorbent.
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Affiliation(s)
- Ningluo Zhang
- Tianjin Key Laboratory of Marine Resources and Chemistry, College of Chemical Engineering and Materials Science, Tianjin University of Science and Technology Tianjin 300457 China
| | - Shangqing Chen
- Tianjin Key Laboratory of Marine Resources and Chemistry, College of Chemical Engineering and Materials Science, Tianjin University of Science and Technology Tianjin 300457 China
| | - Jiayin Hu
- Tianjin Key Laboratory of Marine Resources and Chemistry, College of Chemical Engineering and Materials Science, Tianjin University of Science and Technology Tianjin 300457 China
| | - Jian Shi
- Tianjin Key Laboratory of Marine Resources and Chemistry, College of Chemical Engineering and Materials Science, Tianjin University of Science and Technology Tianjin 300457 China
| | - Yafei Guo
- Tianjin Key Laboratory of Marine Resources and Chemistry, College of Chemical Engineering and Materials Science, Tianjin University of Science and Technology Tianjin 300457 China
| | - Tianlong Deng
- Tianjin Key Laboratory of Marine Resources and Chemistry, College of Chemical Engineering and Materials Science, Tianjin University of Science and Technology Tianjin 300457 China
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