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Ying R, Yang B, Chen M, Zhang X, Zhao C, Long T, Qiu H, Ji W. Characteristics and numerical simulation of chromium transportation, migration and transformation in soil-groundwater system. JOURNAL OF HAZARDOUS MATERIALS 2024; 471:134414. [PMID: 38678718 DOI: 10.1016/j.jhazmat.2024.134414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Revised: 04/14/2024] [Accepted: 04/23/2024] [Indexed: 05/01/2024]
Abstract
Understanding chromium (Cr) migration and dispersion patterns in the soil-groundwater system is critical for the control and remediation of subsurface Cr contamination. In this study, a typical Cr-contaminated site from the Pearl River Delta (PRD) in China was simulated with a three-dimensional (3D) sandbox experiment to investigate the migration and transformation behavior of Cr. Results revealed that under the combined influence of rainfall and groundwater flow, a complex flow field favorable for 3D migration and solute dispersion was formed. The flow field characteristics were influenced by water-table depth, which in turn affected Cr behavior in the system. Moreover, downward flow field expansion under low water-table conditions led to Cr vertical migration range expansion, causing greater contamination in the deep soil. The migration process was accompanied with Cr(VI) reduction, during which approximately 75 % of the total Cr was immobilized in soils. The reactive transport model achieved a good fit for Cr retention and morphological distribution in the solid phase. The model indicates that Cr is more readily transported and dispersed with groundwater, and Cr migrated and spread downstream by 15 m during the eighth year. Therefore, managing water-table depth could be a strategy to minimize the Cr vertical migration and contamination.
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Affiliation(s)
- Rongrong Ying
- Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing 210042, PR China
| | - Bin Yang
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Meng Chen
- Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing 210042, PR China
| | - Xiaoyu Zhang
- Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing 210042, PR China
| | - Caiyi Zhao
- Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing 210042, PR China
| | - Tao Long
- Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing 210042, PR China
| | - Hao Qiu
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Wenbing Ji
- Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing 210042, PR China.
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Ribeiro ES, Pereira MP, de Castro EM, de Resende Baroni G, Duarte VP, de Pádua MP, Pereira FJ. Growth, gas exchange, and leaf anatomy of Echinodorus grandiflorus (Cham. & Schltr.) Micheli under Pb contamination. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:41059-41068. [PMID: 38842777 DOI: 10.1007/s11356-024-33851-4] [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: 08/10/2023] [Accepted: 05/26/2024] [Indexed: 06/07/2024]
Abstract
Lead (Pb) can be deposited in aquatic environments that are especially subject to pollution due to wastewater and sewage disposal. This study aimed to evaluate the tolerance of Echinodorus grandiflorus (Cham. & Schltr.) Micheli to Pb and changes in growth, gas exchange, and leaf anatomy. Experiments were conducted with E. grandiflorus plants exposed to the following Pb concentrations in nutrient solution: [0; 0.75; 1.5; 3.0 and 9.0 μM Pb (NO 3)2] in a greenhouse for 60 days. At the end of the experiment, the lead concentration, growth, leaf gas exchange, and changes in leaf anatomy were evaluated. There was no mortality of E. grandiflorus plants, and they accumulated higher concentrations of Pb proportional to the concentration of the pollutant in the solution. Pb did not cause significant changes in growth, stomatal conductance, transpiration, and Ci/Ca rate but reduced the photosynthesis in E. grandiflorus. The leaf anatomy showed significant changes in the presence of Pb, reducing the epidermis and chlorophyll parenchyma. E. grandiflorus demonstrated tolerance to Pb, surviving and growing under contamination; however, it negatively modified its leaf anatomy and photosynthesis in the presence of the metal.
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Affiliation(s)
- Estefânia Santos Ribeiro
- Institute of Natural Sciences (ICN), Federal University of Lavras, Campus Universitário, Lavras, Minas Gerais, Zip Code 37200-900, Brazil
| | - Marcio Paulo Pereira
- Institute of Natural Sciences (ICN), Federal University of Lavras, Campus Universitário, Lavras, Minas Gerais, Zip Code 37200-900, Brazil
| | - Evaristo Mauro de Castro
- Institute of Natural Sciences (ICN), Federal University of Lavras, Campus Universitário, Lavras, Minas Gerais, Zip Code 37200-900, Brazil
| | - Gabriel de Resende Baroni
- Institute of Natural Sciences (ICN), Federal University of Lavras, Campus Universitário, Lavras, Minas Gerais, Zip Code 37200-900, Brazil
| | - Vinícius Politi Duarte
- Institute of Natural Sciences (ICN), Federal University of Alfenas, Rua Gabriel Monteiro da Silva, 700, Centro, Alfenas, MG, zip code 37130-001, Brazil
| | - Maxwell Pereira de Pádua
- Institute of Natural Sciences (ICN), Federal University of Lavras, Campus Universitário, Lavras, Minas Gerais, Zip Code 37200-900, Brazil
| | - Fabricio José Pereira
- Institute of Natural Sciences (ICN), Federal University of Alfenas, Rua Gabriel Monteiro da Silva, 700, Centro, Alfenas, MG, zip code 37130-001, Brazil.
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El-Tohory S, Zeng W, Huang J, Moussa MG, Dong L, Ismael MA, Khalifa O, Salama MA, Hekal MA, Basyouny MAE, Zhran M, Wu J. Effect of intercropping and biochar amendments on lead removal capacity by Corchorus olitorius and Zea mays. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:42277-42294. [PMID: 38865046 DOI: 10.1007/s11356-024-33849-y] [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: 12/08/2023] [Accepted: 05/25/2024] [Indexed: 06/13/2024]
Abstract
Intercropping is a sustainable strategy recognized for boosting crop production and mitigating heavy metal toxicity in contaminated soils. This study investigates the effects of biochar amendments on Pb-contaminated soil, utilizing monocropping and intercropping techniques with C. olitorius and Z. mays. The research assesses Pb removal capacity, nutrient uptake, antioxidant enzymes, and soil Pb fractionation. In monocropping, the phytoremediation ratio for C. olitorius increased from 16.67 to 27.33%, while in intercropping, it rose from 19.00 to 28.33% with biochar amendments. Similarly, Z. mays exhibited an increased phytoremediation ratio from 53.33 to 74.67% in monocropping and from 63.00 to 78.67% in intercropping with biochar amendments. Intercropping significantly increased the peroxidase (POD) activity in Z. mays roots by 22.53%, and there were notable increases in shoot POD of C. olitorius (11.54%) and Z. mays (16.20%) with biochar application. CAT showed consistent improvements, increasing by 37.52% in C. olitorius roots and 74.49% in Z. mays roots with biochar. Biochar amendments significantly increased N content in soil under sole cropping of Z. mays and intercropping systems. In contrast, Cu content increased by 56.34%, 59.05%, and 79.80% in monocropping (C. olitorius and Z. mays) and intercropping systems, respectively. This suggests that biochar enhances nutrient availability, improving phytoremediation efficacy in Pb-contaminated soil. Phyto availability of trace metals (Zn, Mn, Cu, and Fe) exhibited higher levels with biochar amendments than those without. The findings indicate that intercropping and biochar amendments elevate antioxidant enzyme levels, reducing reactive oxygen species and mitigating Pb toxicity effects. This approach improves phytoremediation efficiency and holds promise for soil pollution remediation while enhancing nutrient content and crop quality in Pb-contaminated soil.
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Affiliation(s)
- Shaimaa El-Tohory
- State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan, 430072, Hubei, China
- Soil and Water Research Department, Nuclear Research Center, Egyptian Atomic Energy Authority, Cairo, 13759, Egypt
| | - Wenzhi Zeng
- College of Agricultural Science and Engineering, Hohai University, Nanjing, 211100, China.
| | - Jiesheng Huang
- State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan, 430072, Hubei, China
| | - Mohamed G Moussa
- Soil and Water Research Department, Nuclear Research Center, Egyptian Atomic Energy Authority, Cairo, 13759, Egypt
- International Center for Biosaline Agriculture, ICBA, 14660, Dubai, United Arab Emirates
| | - Liming Dong
- State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan, 430072, Hubei, China
| | - Marwa A Ismael
- Botany Department, Faculty of Science, Fayoum University, Fayoum, 63514, Egypt
| | - Omar Khalifa
- Soil and Water Research Department, Nuclear Research Center, Egyptian Atomic Energy Authority, Cairo, 13759, Egypt
| | - Mohamed A Salama
- Soil and Water Research Department, Nuclear Research Center, Egyptian Atomic Energy Authority, Cairo, 13759, Egypt
| | - Mohamed A Hekal
- Soil and Water Research Department, Nuclear Research Center, Egyptian Atomic Energy Authority, Cairo, 13759, Egypt
| | - Mohamed A E Basyouny
- Plant Research Department, Nuclear Research Center, Egyptian Atomic Energy Authority, Cairo, 13759, Egypt
| | - Mostafa Zhran
- College of Agricultural Science and Engineering, Hohai University, Nanjing, 211100, China
| | - Jingwei Wu
- State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan, 430072, Hubei, China
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Rafiq M, Shahid M, Bibi I, Khalid S, Tariq TZ, Al-Kahtani AA, ALOthman ZA, Murtaza B, Niazi NK. Role of organic and inorganic amendments on physiological attributes of germinating pea seedlings under arsenic stress. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2024; 26:1243-1252. [PMID: 38265045 DOI: 10.1080/15226514.2024.2305684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2024]
Abstract
There are scarce data regarding the effects of soil amendments on biophysicochemical responses of plants at the early stages of growth/germination. This study critically compares the effects of ethylene-diamine-tetra-acetic-acid (EDTA) and calcium (Ca) on biophysicochemical responses of germinating pea seedlings under varied arsenic levels (As, 25, 125, 250 µM). Arsenic alone enhanced hydrogen peroxide (H2O2) level in pea roots (176%) and shoot (89%), which significantly reduced seed germination percentage, pigment contents, and growth parameters. Presence of EDTA and Ca in growth culture minimized the toxic effects of As on pea seedlings, EDTA being more pertinent than Ca. Both the amendments decreased H2O2 levels in pea tissues (16% in shoot and 13% in roots by EDTA, and 7% by Ca in shoot), and maintained seed germination, pigment contents, and growth parameters of peas close to those of the control treatment. The effects of all As-treatments were more pronounced in the pea roots than in the shoot. The presence of organic and inorganic amendments can play a useful role in alleviating As toxicity at the early stages of pea growth. The scarcity of data demands comparing plant biophysicochemical responses at different stages of plant growth (germinating vs mature) in future studies.
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Affiliation(s)
- Marina Rafiq
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari, Pakistan
| | - Muhammad Shahid
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari, Pakistan
| | - Irshad Bibi
- Institute of Soil and Environmental Sciences, University of Agriculture Faisalabad, Faisalabad, Pakistan
| | - Sana Khalid
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari, Pakistan
| | | | - Abdullah A Al-Kahtani
- Department of Chemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Zeid A ALOthman
- Department of Chemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Behzad Murtaza
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari, Pakistan
| | - Nabeel Khan Niazi
- Institute of Soil and Environmental Sciences, University of Agriculture Faisalabad, Faisalabad, Pakistan
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Agarwal P, Vibhandik R, Agrahari R, Daverey A, Rani R. Role of Root Exudates on the Soil Microbial Diversity and Biogeochemistry of Heavy Metals. Appl Biochem Biotechnol 2024; 196:2673-2693. [PMID: 37191824 DOI: 10.1007/s12010-023-04465-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/15/2023] [Indexed: 05/17/2023]
Abstract
Due to extensive industrialization and escalation in pollution, the world is facing problems related to soil heavy metal pollution. The traditional ways of soil remediation are neither feasible nor cost-effective in most of the real-world scenarios, where metal concentration is relatively low in soil. Therefore, phytoremediation using plants and plant secretions to remediate heavy metal-contaminated soil is recently getting more attention. The plant root exudates act as an ecological driver in the rhizospheric region where they influence and guide the microbial community to function in such a way that can be advantageous for plant growth. They also promote phytoremediation process by altering the bioavailability of pollutants in soil. Root exudates affect the biogeochemical properties of heavy metals as well. In this review, existing literature on the role of root exudates (natural as well as artificial) on the phytoremediation of heavy metal-contaminated (particularly lead) soil is reviewed. The effect of root exudates on the biogeochemistry of lead in soil is also discussed.
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Affiliation(s)
- Priyanka Agarwal
- Department of Biotechnology, Motilal Nehru National Institute of Technology Allahabad, Prayagraj, Teliyarganj, Uttar Pradesh, 211004, India
| | - Rutuja Vibhandik
- Department of Biotechnology, Motilal Nehru National Institute of Technology Allahabad, Prayagraj, Teliyarganj, Uttar Pradesh, 211004, India
| | - Roma Agrahari
- Department of Biochemical Engineering, Harcourt Butler Technical University, Kanpur, Uttar Pradesh, 208002, India
| | - Achlesh Daverey
- School of Environment and Natural Resources, Doon University, Dehradun, Uttarakhand, 248001, India
| | - Radha Rani
- Department of Biotechnology, Motilal Nehru National Institute of Technology Allahabad, Prayagraj, Teliyarganj, Uttar Pradesh, 211004, India.
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Li Q, Yao S, Wen H, Li W, Jin L, Huang X. Improving Lead Phytoremediation Using Endophytic Bacteria Isolated from the Pioneer Plant Ageratina adenophora ( Spreng.) from a Mining Area. TOXICS 2024; 12:291. [PMID: 38668514 PMCID: PMC11054004 DOI: 10.3390/toxics12040291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2024] [Revised: 04/04/2024] [Accepted: 04/12/2024] [Indexed: 04/29/2024]
Abstract
This study aimed to isolate and characterise endophytic bacteria from the pioneer plant Ageratina adenophora in a mining area. Seven strains of metal-resistant endophytic bacteria that belong to five genera were isolated from the roots of A. adenophora. These strains exhibited various plant growth-promoting (PGP) capabilities. Sphingomonas sp. ZYG-4, which exhibited the ability to secrete indoleacetic acid (IAA; 53.2 ± 8.3 mg·L-1), solubilize insoluble inorganic phosphates (Phosphate solubilization; 11.2 ± 2.9 mg·L-1), and regulate root ethylene levels (1-aminocyclopropane-1-carboxylic acid deaminase activity; 2.87 ± 0.19 µM α-KB·mg-1·h-1), had the highest PGP potential. Therefore, Sphingomonas sp. ZYG-4 was used in a pot experiment to study its effect on the biomass and Pb uptake of both host (Ageratina adenophora) and non-host (Dysphania ambrosioides) plants. Compared to the uninoculated control, Sphingomonas sp. ZYG-4 inoculation increased the biomass of shoots and roots by 59.4% and 144.4% for A. adenophora and by 56.2% and 57.1% for D. ambrosioides, respectively. In addition, Sphingomonas sp. ZYG-4 inoculation enhanced Pb accumulation in the shoot and root by 268.9% and 1187.3% for A. adenophora, and by 163.1% and 343.8% for D. ambrosioides, respectively, compared to plants without bacterial inoculation. Our research indicates that endophytic bacteria are promising candidates for enhancing plant growth and facilitating microbe-assisted phytoremediation in heavy metal-contaminated soil.
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Affiliation(s)
- Qiqian Li
- College of Chemical and Biological Engineering, Hechi University, Hechi 546300, China; (Q.L.)
- Guangxi Key Laboratory of Sericulture Ecology and Applied Intelligent Technology, School of Chemistry and Bioengineering, Hechi University, Hechi 546300, China
- Guangxi Collaborative Innovation Center of Modern Sericulture and Silk, School of Chemistry and Bioengineering, Hechi University, Hechi 546300, China
| | - Siyu Yao
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon 999077, Hong Kong; (S.Y.)
- Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hung Hom, Kowloon 999077, Hong Kong
| | - Hua Wen
- College of Chemical and Biological Engineering, Hechi University, Hechi 546300, China; (Q.L.)
| | - Wenqi Li
- College of Chemical and Biological Engineering, Hechi University, Hechi 546300, China; (Q.L.)
| | - Ling Jin
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon 999077, Hong Kong; (S.Y.)
- Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hung Hom, Kowloon 999077, Hong Kong
| | - Xiuxiang Huang
- College of Chemical and Biological Engineering, Hechi University, Hechi 546300, China; (Q.L.)
- Guangxi Collaborative Innovation Center of Modern Sericulture and Silk, School of Chemistry and Bioengineering, Hechi University, Hechi 546300, China
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Bouquet D, Lépinay A, Le Guern C, Jean-Soro L, Capiaux H, Gaudin P, Lebeau T. Maintaining the cultivation of vegetables with low Pb accumulation while remediating the soil of an allotment garden (Nantes, France) by phytoextraction. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:29374-29384. [PMID: 38573580 DOI: 10.1007/s11356-024-33104-4] [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: 11/15/2023] [Accepted: 03/22/2024] [Indexed: 04/05/2024]
Abstract
Lead (Pb) is commonly found in urban soils and can transfer to vegetables. This entails a health risk for consumers of garden crops. The increasing demand of gardening on urban soil linked to the population increase and concentration in urban areas induces an increase in the risk, as people could be forced to cultivate contaminated soils. The aim of this study was to evaluate the performance of a cropping system that allows simultaneously (i) growing eatable vegetables that accumulate few Pb and (ii) cleaning up the soil with other plants by phytoextraction. The tests were carried out in an allotment garden (Nantes, France) where soils are moderately enriched by Pb from geogenic origin (178 mg.kg-1 of dry soil on average). Four vegetables known to accumulate slightly Pb (Solanum lycopersicum, Brassica oleracea cv. "Capitata," Solanum tuberosum, and Phaseolus vulgaris) were grown. The in situ ability of Brassica juncea L. to progressively absorb the phytoavailable Pb of the soil was assessed during four seasons. Analyses of the edible parts of the four vegetables confirmed that they can all be safely cultivated. The accumulation of Pb in B. juncea shoots was too low (ca. 1 mg.kg-1 of dry matter at best) for phytoextraction purposes. Our results confirm that it is possible to grow very low Pb-accumulating vegetables on soils moderately contaminated with Pb, although it was not possible to reduce phytoavailable Pb rapidly enough with B. juncea. This study identifies possible avenues of research to improve this cropping system by using appropriate vegetables that will allow food production to continue on moderately contaminated soil while cleaning it up.
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Affiliation(s)
- Dorine Bouquet
- Nantes Université, Université d'Angers, Le Mans Université, CNRS, UMR 6112, Laboratoire de Planétologie et Géosciences, 2 Rue de La Houssinière, 44322, Nantes Cedex, France
- IRSTV-FR CNRS 2488, Ecole Centrale de Nantes, 1 rue de la Noë, BP 92101, 44321, Nantes, France
| | - Alexandra Lépinay
- Nantes Université, Université d'Angers, Le Mans Université, CNRS, UMR 6112, Laboratoire de Planétologie et Géosciences, 2 Rue de La Houssinière, 44322, Nantes Cedex, France
- OSUNA-UAR3281, CNRS, Nantes Université, 2 rue de la Houssinière, 44322, Nantes Cedex, France
- IRSTV-FR CNRS 2488, Ecole Centrale de Nantes, 1 rue de la Noë, BP 92101, 44321, Nantes, France
| | - Cécile Le Guern
- BRGM, 44323, Nantes, France
- IRSTV-FR CNRS 2488, Ecole Centrale de Nantes, 1 rue de la Noë, BP 92101, 44321, Nantes, France
| | - Liliane Jean-Soro
- Univ Gustave Eiffel, GERS-LEE, 44344, Bouguenais, France
- IRSTV-FR CNRS 2488, Ecole Centrale de Nantes, 1 rue de la Noë, BP 92101, 44321, Nantes, France
| | - Hervé Capiaux
- Nantes Université, Université d'Angers, Le Mans Université, CNRS, UMR 6112, Laboratoire de Planétologie et Géosciences, 2 Rue de La Houssinière, 44322, Nantes Cedex, France
- OSUNA-UAR3281, CNRS, Nantes Université, 2 rue de la Houssinière, 44322, Nantes Cedex, France
- IRSTV-FR CNRS 2488, Ecole Centrale de Nantes, 1 rue de la Noë, BP 92101, 44321, Nantes, France
| | - Pierre Gaudin
- Nantes Université, Université d'Angers, Le Mans Université, CNRS, UMR 6112, Laboratoire de Planétologie et Géosciences, 2 Rue de La Houssinière, 44322, Nantes Cedex, France
- OSUNA-UAR3281, CNRS, Nantes Université, 2 rue de la Houssinière, 44322, Nantes Cedex, France
- IRSTV-FR CNRS 2488, Ecole Centrale de Nantes, 1 rue de la Noë, BP 92101, 44321, Nantes, France
| | - Thierry Lebeau
- Nantes Université, Université d'Angers, Le Mans Université, CNRS, UMR 6112, Laboratoire de Planétologie et Géosciences, 2 Rue de La Houssinière, 44322, Nantes Cedex, France.
- OSUNA-UAR3281, CNRS, Nantes Université, 2 rue de la Houssinière, 44322, Nantes Cedex, France.
- IRSTV-FR CNRS 2488, Ecole Centrale de Nantes, 1 rue de la Noë, BP 92101, 44321, Nantes, France.
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Guo L, Shi Y, Li KW, Yan J, Xu RK. Using an inexpensive RGB color sensor for field quantitative assessment of soil accessible Cu(Ⅱ). ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 344:123348. [PMID: 38219896 DOI: 10.1016/j.envpol.2024.123348] [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: 11/11/2023] [Revised: 12/25/2023] [Accepted: 01/11/2024] [Indexed: 01/16/2024]
Abstract
Field rapid determination of soil accessible Cu(Ⅱ) was important for environmental safety and human health risk assessment. In this study, an inexpensive red, green, and blue (RGB) color sensor was used for quantitative color difference analysis of the colored solution for soil accessible Cu(Ⅱ) with bis-cyclohexanone oxalydihydrazone as color reagent to develop a new method for analyzing soil accessible under field conditions. First, the calibration curve for RGB color sensor method was established in the standard solutions of Cu(II). Then the "hand shaking + standing" field extraction method for accessible Cu(Ⅱ) was developed. Finally, the method was applied in contaminated soils in the laboratory and in the field, and set the values determined by atomic absorption spectroscopy (AAS) as the standard ones. Results indicated that in the range of 0.1-5 mg L-1 Cu(II), the RGB Euclidean chromogenic difference values were directly linear correlated with the concentration of Cu(II) (R2 > 0.999). The interference of Fe(Ⅲ) and Mn(Ⅱ) could be eliminated by adding citric acid. The "hand shaking + standing" field extraction method could effectively extract the accessible Cu(Ⅱ) from soil with the high extraction rates. The concentrations of accessible Cu(II) in various polluted soils determined by RGB color sensor method were consistent with that determined by AAS, with the relative error within ±5%, the relative standard deviation ≤ 20%. The recovery of Cu(II) in RGB color sensor method was between 97% and 105%, which could meet the requirements of trace analysis of accessible Cu(Ⅱ) in the field. The high accuracy and precision of RGB color sensor method was reconfirmed in the rapid field quantitative assessment of soil accessible Cu(Ⅱ). Due to that the RGB color sensor was low cost, rechargeable, portable, mobile, ambient light resistant, the method would have a great potential for the determination of accessible Cu(Ⅱ) in contaminated soils.
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Affiliation(s)
- Linyu Guo
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, P.O. Box 821, Nanjing, China; College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yangxiaoxiao Shi
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, P.O. Box 821, Nanjing, China; College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Ke-Wei Li
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, P.O. Box 821, Nanjing, China; College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jing Yan
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, P.O. Box 821, Nanjing, China
| | - Ren-Kou Xu
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, P.O. Box 821, Nanjing, China; College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China.
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Roy A, Mandal M, Das S, Popek R, Rakwal R, Agrawal GK, Awasthi A, Sarkar A. The cellular consequences of particulate matter pollutants in plants: Safeguarding the harmonious integration of structure and function. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 914:169763. [PMID: 38181950 DOI: 10.1016/j.scitotenv.2023.169763] [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: 09/05/2023] [Revised: 12/19/2023] [Accepted: 12/28/2023] [Indexed: 01/07/2024]
Abstract
Particulate matter (PM) pollution is one of the pressing environmental concerns confronting human civilization in the face of the Anthropocene era. Plants are continuously exposed to an accelerating PM, threatening their growth and productivity. Although plants and plant-based infrastructures can potentially reduce ambient air pollutants, PM still affects them morphologically, anatomically, and physiologically. This review comprehensively summarizes an up-to-date review of plant-PM interaction among different functional plant groups, PM deposition and penetration through aboveground and belowground plant parts, and plants' cellular strategies. Upon exposure, PM represses lipid desaturases, eventually leading to modification of cell wall and membrane and altering cell fluidity; consequently, plants can sense the pollutants and, thus, adapt different cellular strategies. The PM also causes a reduction in the photosynthetically active radiation. The study demonstrated that plants reduce stomatal density to avoid PM uptake and increase stomatal index to compensate for decreased gaseous exchange efficiency and transpiration rates. Furthermore, genes and gene sets associated with photosynthesis, glycolysis, gluconeogenesis, and the TCA cycle were dramatically lowered by PM stress. Several transcription factors, including MYB, C2H2, C3H, G2-like, and WRKY were induced, and metabolites such as proline and soluble sugar were accumulated to increase resistance against stressors. In addition, enzymatic and non-enzymatic antioxidants were also accumulated to scavenge the PM-induced reactive oxygen species (ROS). Taken together, this review provides an insight into plants' underlying cellular mechanisms and gene regulatory networks in response to the PM to determine strategies to preserve their structural and functional blend in the face of particulate pollution. The study concludes by recommending that future research should precisely focus on plants' response to short- and long-term PM exposure.
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Affiliation(s)
- Anamika Roy
- Laboratory of Applied Stress Biology, Department of Botany, University of Gour Banga, Malda 732 103, West Bengal, India
| | - Mamun Mandal
- Laboratory of Applied Stress Biology, Department of Botany, University of Gour Banga, Malda 732 103, West Bengal, India
| | - Sujit Das
- Laboratory of Applied Stress Biology, Department of Botany, University of Gour Banga, Malda 732 103, West Bengal, India
| | - Robert Popek
- Section of Basic Research in Horticulture, Department of Plant Protection, Institute of Horticultural Sciences, Warsaw University of Life Sciences - SGGW (WULS-SGGW), Nowoursynowska 159, Warsaw, Poland
| | - Randeep Rakwal
- Institute of Health and Sport Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8574, Japan; GRADE Academy (Pvt.) Ltd., Birgunj, Nepal
| | | | - Amit Awasthi
- Department of Applied Sciences, University of Petroleum and Energy Studies, Dehradun, India
| | - Abhijit Sarkar
- Laboratory of Applied Stress Biology, Department of Botany, University of Gour Banga, Malda 732 103, West Bengal, India.
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10
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Ilyas MZ, Sa KJ, Ali MW, Lee JK. Toxic effects of lead on plants: integrating multi-omics with bioinformatics to develop Pb-tolerant crops. PLANTA 2023; 259:18. [PMID: 38085368 DOI: 10.1007/s00425-023-04296-9] [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: 06/11/2023] [Accepted: 11/15/2023] [Indexed: 12/18/2023]
Abstract
MAIN CONCLUSION Lead disrupts plant metabolic homeostasis and key structural elements. Utilizing modern biotechnology tools, it's feasible to develop Pb-tolerant varieties by discovering biological players regulating plant metabolic pathways under stress. Lead (Pb) has been used for a variety of purposes since antiquity despite its toxic nature. After arsenic, lead is the most hazardous heavy metal without any known beneficial role in the biological system. It is a crucial inorganic pollutant that affects plant biochemical and morpho-physiological attributes. Lead toxicity harms plants throughout their life cycle and the extent of damage depends on the concentration and duration of exposure. Higher levels of lead exposure disrupt numerous key metabolic activities of plants including oxygen-evolving complex, organelles integrity, photosystem II connectivity, and electron transport chain. This review summarizes the detrimental effects of lead toxicity on seed germination, crop growth, and yield, oxidative and ultra-structural alterations, as well as nutrient absorption, transport, and assimilation. Further, it discusses the Pb-induced toxic modulation of stomatal conductance, photosynthesis, respiration, metabolic-enzymatic activity, osmolytes accumulation, and antioxidant activity. It is a comprehensive review that reports on omics-based studies along with morpho-physiological and biochemical modifications caused by lead stress. With advances in DNA sequencing technologies, genomics and transcriptomics are gradually becoming popular for studying Pb stress effects in plants. Proteomics and metabolomics are still underrated and there is a scarcity of published data, and this review highlights both their technical and research gaps. Besides, there is also a discussion on how the integration of omics with bioinformatics and the use of the latest biotechnological tools can aid in developing Pb-tolerant crops. The review concludes with core challenges and research directions that need to be addressed soon.
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Affiliation(s)
- Muhammad Zahaib Ilyas
- Department of Applied Plant Sciences, College of Bio-Resource Sciences, Kangwon National University, Chuncheon, 24341, South Korea
| | - Kyu Jin Sa
- Department of Crop Science, College of Ecology & Environmental Sciences, Kyungpook National University, Sangju, 37224, Korea
| | - Muhammad Waqas Ali
- School of Biosciences, University of Birmingham, Birmingham, B15 2TT, UK
- Department of Crop Genetics, John Innes Center, Norwich Research Park, Norwich, NR4 7UH, UK
| | - Ju Kyong Lee
- Department of Applied Plant Sciences, College of Bio-Resource Sciences, Kangwon National University, Chuncheon, 24341, South Korea.
- Interdisciplinary Program in Smart Agriculture, Kangwon National University, Chuncheon, 24341, South Korea.
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11
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Han H, Du K, An X, Song Y, Zhao Z, Xu J, Jiang L, Wang G, Wang Y, Su S, Hu S, Xiang J. Migration and transformation of trace elements during sewage sludge and coal slime Co-combustion. CHEMOSPHERE 2023; 345:140342. [PMID: 37783355 DOI: 10.1016/j.chemosphere.2023.140342] [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: 02/25/2023] [Revised: 09/29/2023] [Accepted: 09/30/2023] [Indexed: 10/04/2023]
Abstract
Co-combustion of sewage sludge (SS) and coal slime (CS) could improve the combustion properties of the two materials, however, high levels of trace elements (TEs) can be released from the two wastes, resulting in secondary pollution. The migration and transformation behavior of As, Cr, Pb, Zn, and Mn during co-combustion is explored in current research. The results showed co-combustion could inhibit the emission of Zn, As, Pb, and Mn, and the effect was more pronounced for Zn, As and Mn. Meanwhile, minerals like kaolinite and gypsum were found to generated in the ash from co-combustion but not solo-combustion. Model experiments demonstrated that kaolinite captured As, Pb and Mn, while gypsum captured Zn, As and Mn but facilitated the emission of Pb and Cr. This well explained the distinct TEs emission characteristics between co-combustion and solo combustion. As the temperature elevated, kaolinite in co-combustion ash decomposed and the generation of gypsum was promoted. In this way, the emission ratios of Zn, As, and Mn initially increased but subsequently decreased between 700 and 1300 °C, whereas Pb and Cr emission ratios increased by twofold within the same temperature range. Leaching characteristics and risk assessment code on co-combustion ashes were also conducted in this study. The results indicated a marginal elevation in the risk associated with trace elements (TEs) following co-combustion, provided that all five TEs remained within the limits of national standards.
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Affiliation(s)
- Hengda Han
- State Key Laboratory of Coal Combustion, School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Kuan Du
- State Key Laboratory of Coal Combustion, School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Xiaoxue An
- State Key Laboratory of Coal Combustion, School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Yajie Song
- China Resources Power Technology Research Institute Co., Ltd, Shenzhen, 518000, China
| | - Zheng Zhao
- State Key Laboratory of Coal Combustion, School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Jun Xu
- State Key Laboratory of Coal Combustion, School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Long Jiang
- State Key Laboratory of Coal Combustion, School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Guang Wang
- State Environment Protection key Laboratory of Environmental Monitoring Quality Control, China National Environmental Monitoring Centre, Beijing, 100012, China
| | - Yi Wang
- State Key Laboratory of Coal Combustion, School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Sheng Su
- State Key Laboratory of Coal Combustion, School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Song Hu
- State Key Laboratory of Coal Combustion, School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Jun Xiang
- State Key Laboratory of Coal Combustion, School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China.
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12
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Khan M, Ahmed S, Yasin NA, Sardar R, Hussaan M, Gaafar ARZ, Haider FU. 28-Homobrassinolide Primed Seed Improved Lead Stress Tolerance in Brassica rapa L. through Modulation of Physio-Biochemical Attributes and Nutrient Uptake. PLANTS (BASEL, SWITZERLAND) 2023; 12:3528. [PMID: 37895994 PMCID: PMC10610288 DOI: 10.3390/plants12203528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 10/06/2023] [Accepted: 10/09/2023] [Indexed: 10/29/2023]
Abstract
Brassinosteroids (BRs) influence a variety of physiological reactions and alleviate different biotic and abiotic stressors. Turnip seedlings were grown with the goal of further exploring and expanding their function in plants under abiotic stress, particularly under heavy metal toxicity (lead stress). This study's objective was to ascertain the role of applied 28-homobrassinolide (HBL) in reducing lead (Pb) stress in turnip plants. Turnip seeds treated with 1, 5, and 10 µM HBL and were grown-up in Pb-contaminated soil (300 mg kg-1). Lead accumulation reduces biomass, growth attributes, and various biochemical parameters, as well as increasing proline content. Seed germination, root and shoot growth, and gas exchange characteristics were enhanced via HBL treatment. Furthermore, Pb-stressed seedlings had decreased total soluble protein concentrations, photosynthetic pigments, nutrition, and phenol content. Nonetheless, HBL increased chlorophyll a and chlorophyll b levels in plant, resulting in increased photosynthesis. As a result, seeds treated with HBL2 (5 µM L-1) had higher nutritional contents (Mg+2, Zn+2, Na+2, and K+1). HBL2-treated seedlings had higher DPPH and metal tolerance indexes. This led to the conclusion that HBL2 effectively reduced Pb toxicity and improved resistance in lead-contaminated soil.
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Affiliation(s)
- Mawra Khan
- Institute of Botany, University of the Punjab, Lahore 54590, Pakistan
| | - Shakil Ahmed
- Institute of Botany, University of the Punjab, Lahore 54590, Pakistan
| | - Nasim Ahmad Yasin
- SSG RO-II Department, University of the Punjab, Lahore 54590, Pakistan
| | - Rehana Sardar
- Institute of Botany, University of the Punjab, Lahore 54590, Pakistan
| | - Muhammad Hussaan
- Department of Botany, Faculty of Life Sciences, Government College University, Faisalabad 38000, Pakistan
| | - Abdel-Rhman Z. Gaafar
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
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13
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He X, Liu S, Huang X, Yu F, Li Y, Li F, Liu K. Effects of sulfate on the photosynthetic physiology characteristics of Hydrocotyle vulgaris under zinc stress. FUNCTIONAL PLANT BIOLOGY : FPB 2023; 50:724-735. [PMID: 37544656 DOI: 10.1071/fp23054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Accepted: 07/05/2023] [Indexed: 08/08/2023]
Abstract
The effects of sulfate on the zinc (Zn) bioaccumulation characteristics and photophysiological mechanisms of the ornamental plant Hydrocotyle vulgaris were explored using a hydroponic culture under three Zn concentrations (300, 500 and 700mgL-1 ) with (400μmolL-1 ) or without the addition of sulfate. Results showed that: (1) tissue Zn concentrations and total Zn contents increased with increasing hydroponic culture Zn concentrations; and sulfate addition decreased Zn uptake and translocation from roots to shoots; (2) Zn exposure decreased photosynthetic pigment synthesis, while sulfate changed this phenomenon, especially for chlorophyll a under 300mgL-1 Zn treatment; (3) Zn exposure decreased photosynthetic function, while sulfate had positive effects, especially on the photosynthetic rate (Pn ) and stomatal conductance (Gs ); and (4) chlorophyll fluorescence parameters related to light energy capture, transfer and assimilation were generally downregulated under Zn stress, while sulfate had a positive effect on these processes. Furthermore, compared to photosynthetic pigment synthesis and photosynthesis, chlorophyll fluorescence was more responsive, especially under 300mgL-1 Zn treatment with sulfate addition. In general, Zn stress affected photophysiological processes at different levels, while sulfate decreased Zn uptake, translocation, and bioaccumulation and showed a positive function in alleviating Zn stress, ultimately resulting in plant growth promotion. All of these results provide a theoretical reference for combining H. vulgaris with sulfate application in the bioremediation of Zn-contaminated environments at the photophysiological level.
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Affiliation(s)
- Xiaoyan He
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guilin 541004, China
| | - Shiling Liu
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guilin 541004, China
| | - Xiaoqian Huang
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guilin 541004, China
| | - Fangming Yu
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guilin 541004, China
| | - Yi Li
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guilin 541004, China
| | - Furong Li
- Institute of Quality Standard and Monitoring Technology for Agro-Products of Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - Kehui Liu
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guilin 541004, China
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14
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Natasha, Shahid M, Khalid S, Murtaza B, Anwar H, Shah AH, Sardar A, Shabbir Z, Niazi NK. A critical analysis of wastewater use in agriculture and associated health risks in Pakistan. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2023; 45:5599-5618. [PMID: 32875481 DOI: 10.1007/s10653-020-00702-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Accepted: 08/18/2020] [Indexed: 06/11/2023]
Abstract
Freshwater shortage and its contamination with various types of pollutants are becoming the most alarming issues worldwide due to impacts on socioeconomic values. Considering an increasing freshwater scarcity, it is imperative for the growers, particularly in semiarid and arid areas, to use wastewater for crop production. Wastewaters generally contain numerous essential inorganic and organic nutrients which are considered necessary for plant metabolism. Besides, this practice provokes various hygienic, ecological and health concerns due to the occurrence of toxic substances such as heavy metals. Pakistan nowadays faces a severe freshwater scarcity. Consequently, untreated wastewater is used routinely in the agriculture sector. In this review, we have highlighted the negative and positive affectivity of wastewater on the chemical characteristics of the soil. This review critically delineates toxic metal accumulation in soil and their possible soil-plant-human transfer. We have also estimated and deliberated possible health hazards linked with the utilization of untreated city waste effluents for the cultivation of food/vegetable crops. Moreover, we carried out a multivariate analysis of data (144 studies of wastewater crop irrigation in Pakistan) to trace out common trends in published data. We have also compared the limit values of toxic metals in irrigation water, soil and plants. Furthermore, some viable solutions and future viewpoints are anticipated taking into account the on-ground situation in Pakistan-such as planning and sanitary matters, remedial/management technologies, awareness among local habitants (especially farmers) and the role of the government, NGOs and pertinent stakeholders. The data are supported by 13 tables and 7 figures.
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Affiliation(s)
- Natasha
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari Campus, Vehari, 61100, Pakistan
| | - Muhammad Shahid
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari Campus, Vehari, 61100, Pakistan.
| | - Sana Khalid
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari Campus, Vehari, 61100, Pakistan
| | - Behzad Murtaza
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari Campus, Vehari, 61100, Pakistan
| | - Hasnain Anwar
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari Campus, Vehari, 61100, Pakistan
| | - Ali Haidar Shah
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari Campus, Vehari, 61100, Pakistan
| | - Aneeza Sardar
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari Campus, Vehari, 61100, Pakistan
| | - Zunaira Shabbir
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari Campus, Vehari, 61100, Pakistan
| | - Nabeel Khan Niazi
- Institute of Soil and Environmental Sciences, University of Agriculture Faisalabad, Faisalabad, 38040, Pakistan
- Southern Cross GeoScience, Southern Cross University, Lismore, NSW, 2480, Australia
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15
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Das PK, Das BP, Das BK, Dash P. Rhizospheric soil chromium toxicity and its remediation using plant hyperaccumulators. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2023; 26:193-207. [PMID: 37417937 DOI: 10.1080/15226514.2023.2231572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/08/2023]
Abstract
The hyper-accumulation of chromium in its hexavalent form is treated as a hazardous soil pollutant at industrial and mining sites. Excessive accumulation of Cr6+ in soil threatens the environmental health and safety of living organisms. Out of two stable forms of chromium, Cr6+ is highly responsible for ecotoxicity. The expression of the high toxicity of Cr6+ at low concentrations in the soil environment indicates its lethality. It is usually released into the soil during various socio-economic activities. Sustainable remediation of Cr6+ contaminated soil is of utmost need and can be carried out by employing suitable plant hyperaccumulators. Alongside the plant's ability to sequester toxic metals like Cr6+, the rhizospheric soil parameters play a significant role in this technique and are mostly overlooked. Here we review the application of a cost-effective and eco-friendly remediation technology at hyperaccumulators rhizosphere to minimize the Cr6+ led soil toxicity. The use of selected plant species along with effective rhizospheric activities has been suggested as a technique to reduce Cr6+ toxicity on soil and its associated biota. This soil rectification approach may prove to be sustainable and advantageous over other possible techniques. Further, it may open up new solutions for soil Cr6+ management at polluted sites.
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Affiliation(s)
- Pratyush Kumar Das
- Centre for Biotechnology, Siksha 'O' Anusandhan (Deemed to be University), Bhubaneswar, Odisha, India
| | - Bidyut Prava Das
- Department of Botany, Rama Devi Women's University, Bhubaneswar, Odisha, India
| | - Bikash Kumar Das
- Centre for Biotechnology, Siksha 'O' Anusandhan (Deemed to be University), Bhubaneswar, Odisha, India
| | - Patitapaban Dash
- Centre for Biotechnology, Siksha 'O' Anusandhan (Deemed to be University), Bhubaneswar, Odisha, India
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16
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Liu Y, Huang L, Wen Z, Fu Y, Liu Q, Xu S, Li Z, Liu C, Yu C, Feng Y. Effects of intercropping on safe agricultural production and phytoremediation of heavy metal-contaminated soils. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 875:162700. [PMID: 36906036 DOI: 10.1016/j.scitotenv.2023.162700] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 03/02/2023] [Accepted: 03/03/2023] [Indexed: 06/18/2023]
Abstract
Intercropping with hyperaccumulators is believed to be an important and efficient way to achieve simultaneous safe agricultural production and phytoremediation of polluted soils. However, some studies have suggested that this technique might facilitate the uptake of heavy metals by crops. To investigate the effects of intercropping on the heavy metal contents of plants and soil, data from 135 global studies were collected and analyzed by meta-analysis. The results showed that intercropping could significantly reduce the contents of heavy metals in the main plants and soils. Plant species was the main factor that affected plant and soil metal contents in the intercropping system, and the heavy metal content could be significantly reduced when members of the Poaceae and Crassulaceae were used as main plants or when legumes were used as intercropped plants. Among all the intercropped plants, the best one for removing heavy metals from the soil was a Crassulaceae hyperaccumulator. These results not only highlight the main factors affecting intercropping systems but also provide reliable reference information for the practice of safe agricultural production coupled with phytoremediation of heavy metal-contaminated farmland.
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Affiliation(s)
- Yaru Liu
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Lukuan Huang
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Zheyu Wen
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Yingyi Fu
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Qizhen Liu
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Shunan Xu
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Zhesi Li
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Chanjuan Liu
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Chao Yu
- Livestock Industrial Development Center of Shengzhou, Shengzhou 312400, China
| | - Ying Feng
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China.
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17
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Sarathchandra SS, Rengel Z, Solaiman ZM. A Review on Remediation of Iron Ore Mine Tailings via Organic Amendments Coupled with Phytoremediation. PLANTS (BASEL, SWITZERLAND) 2023; 12:plants12091871. [PMID: 37176929 PMCID: PMC10181287 DOI: 10.3390/plants12091871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 04/08/2023] [Accepted: 04/28/2023] [Indexed: 05/15/2023]
Abstract
Mining operations degrade natural ecosystems by generating a large quantity of mine tailings. Mine tailings remain in dams/open ponds without further treatment after valuable metals such as iron ore have been extracted. Therefore, rehabilitation of tailings to mitigate the negative environmental impacts is of the utmost necessity. This review compares existing physical, chemical and amendment-assisted phytoremediation methods in the rehabilitation of mine tailings from the perspective of cost, reliability and durability. After review and discussion, it is concluded that amendment-assisted phytoremediation has received comparatively great attention; however, the selection of an appropriate phytoremediator is the critical step in the process. Moreover, the efficiency of phytoremediation is solely dependent on the amendment type and rate. Further, the application of advanced plant improvement technologies, such as genetically engineered plants produced for this purpose, would be an alternative solution. Further research is needed to determine the suitability of this method for the particular environment.
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Affiliation(s)
- Sajeevee S Sarathchandra
- UWA School of Agriculture and Environment, The University of Western Australia, Perth, WA 6009, Australia
- The UWA Institute of Agriculture, The University of Western Australia, Perth, WA 6009, Australia
| | - Zed Rengel
- UWA School of Agriculture and Environment, The University of Western Australia, Perth, WA 6009, Australia
- The UWA Institute of Agriculture, The University of Western Australia, Perth, WA 6009, Australia
| | - Zakaria M Solaiman
- UWA School of Agriculture and Environment, The University of Western Australia, Perth, WA 6009, Australia
- The UWA Institute of Agriculture, The University of Western Australia, Perth, WA 6009, Australia
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18
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Zhou Y, Tang Y, Liao C, Su M, Shih K. Recent advances toward structural incorporation for stabilizing heavy metal contaminants: A critical review. JOURNAL OF HAZARDOUS MATERIALS 2023; 448:130977. [PMID: 36860053 DOI: 10.1016/j.jhazmat.2023.130977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 01/27/2023] [Accepted: 02/07/2023] [Indexed: 06/18/2023]
Abstract
Heavy metal pollution has resulted in serious environmental damage and raised significant public health concerns. One potential solution in terminal waste treatment is to structurally incorporate and immobilize heavy metals in some robust frameworks. Yet extant research offers a limited perspective on how metal incorporation behavior and stabilization mechanisms can effectively manage heavy metal-laden waste. This review sets forth detailed research on the feasibility of treatment strategies to incorporate heavy metals into structural frameworks; this paper also compares common methods and advanced characterization techniques for identifying metal stabilization mechanisms. Furthermore, this review analyses the typical hosting structures for heavy metal contaminants and metal incorporation behavior, highlighting the importance of structural features on metal speciation and immobilization efficiency. Lastly, this paper systematically summarizes key factors (i.e., intrinsic properties and external conditions) affecting metal incorporation behavior. Drawing on these impactful findings, the paper discusses future directions in the design of waste forms that efficiently, effectively treat heavy metal contaminants. By examining tailored composition-structure-property relationships in metal immobilization strategies, this review reveals possible solutions for crucial challenges in waste treatment and enhances the development of structural incorporation strategies for heavy metal immobilization in environmental applications.
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Affiliation(s)
- Ying Zhou
- Center for Water Research, Advanced Institute of Natural Sciences, Beijing Normal University at Zhuhai, Zhuhai 519087, China; Department of Civil Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong Special Administrative Region of China
| | - Yuanyuan Tang
- School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China.
| | - Changzhong Liao
- State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China
| | - Minhua Su
- Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources, School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, China
| | - Kaimin Shih
- Department of Civil Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong Special Administrative Region of China.
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19
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Mocek-Płóciniak A, Mencel J, Zakrzewski W, Roszkowski S. Phytoremediation as an Effective Remedy for Removing Trace Elements from Ecosystems. PLANTS (BASEL, SWITZERLAND) 2023; 12:1653. [PMID: 37111876 PMCID: PMC10141480 DOI: 10.3390/plants12081653] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 04/07/2023] [Accepted: 04/12/2023] [Indexed: 06/19/2023]
Abstract
The pollution of soil by trace elements is a global problem. Conventional methods of soil remediation are often inapplicable, so it is necessary to search intensively for innovative and environment-friendly techniques for cleaning up ecosystems, such as phytoremediation. Basic research methods, their strengths and weaknesses, and the effects of microorganisms on metallophytes and plant endophytes resistant to trace elements (TEs) were summarised and described in this manuscript. Prospectively, bio-combined phytoremediation with microorganisms appears to be an ideal, economically viable and environmentally sound solution. The novelty of the work is the description of the potential of "green roofs" to contribute to the capture and accumulation of many metal-bearing and suspended dust and other toxic compounds resulting from anthropopressure. Attention was drawn to the great potential of using phytoremediation on less contaminated soils located along traffic routes and urban parks and green spaces. It also focused on the supportive treatments for phytoremediation using genetic engineering, sorbents, phytohormones, microbiota, microalgae or nanoparticles and highlighted the important role of energy crops in phytoremediation. Perceptions of phytoremediation on different continents are also presented, and new international perspectives are presented. Further development of phytoremediation requires much more funding and increased interdisciplinary research in this direction.
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Affiliation(s)
- Agnieszka Mocek-Płóciniak
- Department of Soil Science and Microbiology, Poznan University of Life Sciences, Szydłowska 50, 60-656 Poznan, Poland
| | - Justyna Mencel
- Department of Soil Science and Microbiology, Poznan University of Life Sciences, Szydłowska 50, 60-656 Poznan, Poland
| | - Wiktor Zakrzewski
- Regional Chemical and Agricultural Station in Poznan, Sieradzka 29, 60-163 Poznan, Poland
| | - Szymon Roszkowski
- Department of Geriatrics, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Torun, Jagiellonska 13/15, 85-067 Bydgoszcz, Poland
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Cai X, Li X, Peng L, Liang Y, Jiang M, Ma J, Sun L, Guo B, Yu X, Du J, Li N, Cai S. Effects of mowing on Pb accumulation and transport in Cynodon dactylon (L.) Pers. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:57571-57586. [PMID: 36973620 DOI: 10.1007/s11356-023-26623-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Accepted: 03/20/2023] [Indexed: 05/10/2023]
Abstract
Bermudagrass is a perennial herb with the potential to remediate Pb pollution in soils, and it has mechanical resistance to shearing. However, the effects of mowing on Pb absorption and accumulation in bermudagrass are still unclear. In this study, we investigated the effects of different quantities (0, 1, 2, 4 applications) of mowing treatments under 200 mg L-1 Pb application on Pb accumulation and transport in bermudagrass and explored the related mechanisms. Compared to the Pb treatment, all of the mowing treatments greatly decreased root Pb concentration/accumulation, significantly enhanced Pb concentrations/accumulations in stubble stems and stubble leaves, and ultimately promoted Pb enrichment and transport. Of the treatments in this study, two applications of mowing best promoted Pb enrichment, and four applications of mowing best promoted Pb transport efficiency. Furthermore, mowing mediated the microdistribution and physiological patterns of Pb in bermudagrass and affected the Pb transport by changing the subcellar distribution patterns and chemical forms of Pb in various tissues. Additionally, mowing promoted the transport of all mineral elements and showed a synergistic relationship with Pb absorption and transport. The change in mineral element metabolism patterns may be an important reason why mowing promoted Pb accumulation in bermudagrass. Our study provides the first comprehensive evidence regarding mowing facilitating the absorption, accumulation and transport of Pb in bermudagrass. Moderate mowing may be an effective strategy to assist in soil Pb remediation using bermudagrass.
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Affiliation(s)
- Xinyi Cai
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Xi Li
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China.
| | - Lingli Peng
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Yahao Liang
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Mingyan Jiang
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Jun Ma
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Lingxia Sun
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Baimeng Guo
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Xiaofang Yu
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Juan Du
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Nian Li
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Shizhen Cai
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
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21
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Li G, Yan L, Chen X, Lam SS, Rinklebe J, Yu Q, Yang Y, Peng W, Sonne C. Phytoremediation of cadmium from soil, air and water. CHEMOSPHERE 2023; 320:138058. [PMID: 36746249 DOI: 10.1016/j.chemosphere.2023.138058] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 01/31/2023] [Accepted: 02/03/2023] [Indexed: 06/18/2023]
Abstract
Potentially toxic elements (PTEs) pose a great threat to ecosystems and long-term exposure causes adverse effects to wildlife and humans. Cadmium induces a variety of diseases including cancer, kidney dysfunction, bone lesions, anemia and hypertension. Here we review the ability of plants to accumulate cadmium from soil, air and water under different environmental conditions, focusing on absorption mechanisms and factors affecting these. Cadmium possess various transport mechanisms and pathways roughly divided into symplast and apoplast pathway. Excessive cadmium concentrations in the environment affects soil properties, pH and microorganism composition and function and thereby plant uptake. At the same time, plants resist cadmium toxicity by antioxidant reaction. The differences in cadmium absorption capacity of plants need more exploration to determine whether it is beneficial for crop breeding or genetic modification. Identify whether plants have the potential to become hyperaccumulator and avoid excessive cadmium uptake by edible plants. The use of activators such as wood vinegar, GLDA (Glutamic acid diacetic acid), or the placement of earthworms and fungi can speed up phytoremediation of plants, thereby reducing uptake of crop varieties and reducing human exposure, thus accelerating food safety and the health of the planet.
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Affiliation(s)
- Guanyan Li
- Henan Province International Collaboration /Lab of Forest Resources Utilization, School of Forestry, Henan Agricultural University, Zhengzhou, 450002, China
| | - Lijun Yan
- Henan Province International Collaboration /Lab of Forest Resources Utilization, School of Forestry, Henan Agricultural University, Zhengzhou, 450002, China
| | - Xiangmeng Chen
- Henan Province International Collaboration /Lab of Forest Resources Utilization, School of Forestry, Henan Agricultural University, Zhengzhou, 450002, China.
| | - Su Shiung Lam
- Higher Institution Centre of Excellence (HICoE), Institute of Tropical Aquaculture and Fisheries (AKUATROP), Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia; Center for Transdisciplinary Research, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, India; University Centre for Research and Development, Department of Chemistry, Chandigarh University, Gharuan, Mohali, Punjab, India
| | - Jörg Rinklebe
- University of Wuppertal, School of Architecture and Civil Engineering, Institute of Foundation Engineering, Water and Waste Management, Laboratory of Soil and Groundwater Management, Pauluskirchstraße 7, 42285, Wuppertal, Germany
| | - Qing Yu
- Henan Province International Collaboration /Lab of Forest Resources Utilization, School of Forestry, Henan Agricultural University, Zhengzhou, 450002, China
| | - Yafeng Yang
- Henan Province International Collaboration /Lab of Forest Resources Utilization, School of Forestry, Henan Agricultural University, Zhengzhou, 450002, China
| | - Wanxi Peng
- Henan Province International Collaboration /Lab of Forest Resources Utilization, School of Forestry, Henan Agricultural University, Zhengzhou, 450002, China.
| | - Christian Sonne
- Department of Ecoscience, Arctic Research Centre (ARC), Aarhus University, Frederiksborgvej 399, PO Box 358, 4000, Roskilde, Denmark; Sustainability Cluster, School of Engineering, University of Petroleum & Energy Studies, Dehradun, Uttarakhand 248007, India.
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Egbe AM, Tabot PT, Fonge BA, Ngole-Jeme VM. Heavy metal exposure risk associated with ingestion of Oreochromis niloticus and Coptodon kottae harvested from a lacustrine ecosystem. ENVIRONMENTAL MONITORING AND ASSESSMENT 2023; 195:427. [PMID: 36843174 PMCID: PMC9968700 DOI: 10.1007/s10661-023-10936-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Accepted: 01/12/2023] [Indexed: 06/18/2023]
Abstract
Lacustrine ecosystems have not been widely assessed for heavy metal contamination and associated health risks; yet, they could be accumulating these contaminants to the detriment of aquatic organisms and communities relying on them for various aspects. The water quality index (WQI) and concentrations of heavy metals including As, Cd, Co, Cu, Cr, Fe, Mn, Ni, Pb, and Zn in water, sediment, Oreochromis niloticus, and in the endemic and endangered Coptodon kottae in Lake Barombi Kotto in Cameroon were determined to evaluate fish heavy metal bioaccumulation, and heavy metal exposure risk posed to communities consuming these fish species. The WQI of the lake was found to be excellent with heavy metal concentrations that were lower than what was obtained in the sediments and fish samples. Mean heavy metal concentrations in sediment ranged from 0.86 ± 0.03 mg/kg for Cd to 560.1 ± 11.15 mg/kg for Fe. In both fish species, Fe, Mn, and Cu had the highest concentrations. Though the heavy metal concentrations in the lake water were low, heavy metal bioconcentration factors for both fish species were very high ranging from 1.6 for Fe to 1568 for Mn. The concentration patterns of heavy metals in the organs of both fish species followed the order bones > gut > muscle. Consumption of these two fish species contributes less than 1.0% of the permissible tolerable daily intake (PTDI) and provisional tolerable weekly intake (PTWI) of these metals with lead (Pb) having the potential to exceed permissible exposure levels when high amounts of these fish are consumed by adults.
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Affiliation(s)
- Awo Miranda Egbe
- Department of Botany and Plant Physiology, University of Buea, PO BOX 63, Fako, Division South West Region, Buea, Cameroon
| | - Pascal Tabi Tabot
- Department of Agriculture, Higher Technical Teachers' Training College Kumba, Kumba, Meme Division, South West Region, Cameroon
| | - Beatrice Ambo Fonge
- Department of Botany and Plant Physiology, University of Buea, PO BOX 63, Fako, Division South West Region, Buea, Cameroon
| | - Veronica M Ngole-Jeme
- Department of Environmental Sciences, College of Agriculture and Environmental Sciences, University of South Africa, Florida Campus, Roodepoort, Johannesburg, Gauteng Province, 1710, South Africa.
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23
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The study of EDTA enhanced Cd accumulation and formation in Napier grass using synchrotron μX-ray fluorescence imaging and X-ray absorption spectroscopy. Radiat Phys Chem Oxf Engl 1993 2023. [DOI: 10.1016/j.radphyschem.2023.110851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
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24
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Asare MO, Száková J, Tlustoš P. The fate of secondary metabolites in plants growing on Cd-, As-, and Pb-contaminated soils-a comprehensive review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:11378-11398. [PMID: 36529801 PMCID: PMC9760545 DOI: 10.1007/s11356-022-24776-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Accepted: 12/11/2022] [Indexed: 04/12/2023]
Abstract
The study used scattered literature to summarize the effects of excess Cd, As, and Pb from contaminated soils on plant secondary metabolites/bioactive compounds (non-nutrient organic substances). Hence, we provided a systematic overview involving the sources and forms of Cd, As, and Pb in soils, plant uptake, mechanisms governing the interaction of these risk elements during the formation of secondary metabolites, and subsequent effects. The biogeochemical characteristics of soils are directly responsible for the mobility and bioavailability of risk elements, which include pH, redox potential, dissolved organic carbon, clay content, Fe/Mn/Al oxides, and microbial transformations. The radial risk element flow in plant systems is restricted by the apoplastic barrier (e.g., Casparian strip) and chelation (phytochelatins and vacuole sequestration) in roots. However, bioaccumulation is primarily a function of risk element concentration and plant genotype. The translocation of risk elements to the shoot via the xylem and phloem is well-mediated by transporter proteins. Besides the dysfunction of growth, photosynthesis, and respiration, excess Cd, As, and Pb in plants trigger the production of secondary metabolites with antioxidant properties to counteract the toxic effects. Eventually, this affects the quantity and quality of secondary metabolites (including phenolics, flavonoids, and terpenes) and adversely influences their antioxidant, antiinflammatory, antidiabetic, anticoagulant, and lipid-lowering properties. The mechanisms governing the translocation of Cd, As, and Pb are vital for regulating risk element accumulation in plants and subsequent effects on secondary metabolites.
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Affiliation(s)
- Michael O Asare
- Department of Agroenvironmental Chemistry and Plant Nutrition, Faculty of Agrobiology, Food, and Natural Resources, Czech University of Life Sciences, Kamýcká 129, 165 21, Prague 6, Czech Republic.
| | - Jiřina Száková
- Department of Agroenvironmental Chemistry and Plant Nutrition, Faculty of Agrobiology, Food, and Natural Resources, Czech University of Life Sciences, Kamýcká 129, 165 21, Prague 6, Czech Republic
| | - Pavel Tlustoš
- Department of Agroenvironmental Chemistry and Plant Nutrition, Faculty of Agrobiology, Food, and Natural Resources, Czech University of Life Sciences, Kamýcká 129, 165 21, Prague 6, Czech Republic
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25
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Li Y, Zhang P, Li M, Shakoor N, Adeel M, Zhou P, Guo M, Jiang Y, Zhao W, Lou B, Rui Y. Application and mechanisms of metal-based nanoparticles in the control of bacterial and fungal crop diseases. PEST MANAGEMENT SCIENCE 2023; 79:21-36. [PMID: 36196678 DOI: 10.1002/ps.7218] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Revised: 09/16/2022] [Accepted: 10/05/2022] [Indexed: 06/16/2023]
Abstract
Nanotechnology is a young branch of the discipline generated by nanomaterials. Its development has greatly contributed to technological progress and product innovation in the field of agriculture. The antimicrobial properties of nanoparticles (NPs) can be used to develop nanopesticides for plant protection. Plant diseases caused by bacterial and fungal infestations are the main types of crop diseases. Once infected, they will seriously threaten crop growth, reduce yield and quality, and affect food safety, posing a health risk to humans. We reviewed the application of metal-based nanoparticles in inhibiting plant pathogenic bacteria and fungi, and discuss the antibacterial mechanisms of metal-based nanoparticles from two aspects: the direct interaction between nanoparticles and pathogens, and the indirect effects of inducing plant resilience to disease. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Yuanbo Li
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing, China
| | - Peng Zhang
- School of Geography, Earth and Environmental Sciences, University of Birmingham, Birmingham, UK
| | - Mingshu Li
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing, China
| | - Noman Shakoor
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing, China
| | - Muhammad Adeel
- BNU-HKUST Laboratory of Green Innovation, Advanced Institute of Natural Sciences, Beijing Normal University at Zhuhai, Zhuhai, China
| | - Pingfan Zhou
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing, China
| | - Manlin Guo
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing, China
| | - Yaqi Jiang
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing, China
| | - Weichen Zhao
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing, China
| | - BenZhen Lou
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing, China
| | - Yukui Rui
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing, China
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Guo X, Gao Y, Han W, Zhao G, Zhang G, Liu D. Effect of multiple washing operations on the removal of potentially toxic metals from an alkaline farmland soil and the strategy for agricultural reuse. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:739-751. [PMID: 35902529 DOI: 10.1007/s11356-022-22126-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Accepted: 07/16/2022] [Indexed: 06/15/2023]
Abstract
Few studies have carried out soil washing experiments using pot experiments to simulate in situ soil washing operations, particularly for alkaline soils. This study explored the effects of multiple washing operations using pot experiments on the removal efficiencies of potentially toxic metals (PTM) from alkaline farmland soil and the reuse strategy of washed soil for safe agricultural production. The results showed that the removal efficiencies of Cd, Pb, Cu, and Zn after seven washings with a mixed chelator (EDTA, GLDA, and citric acid) were 41.1%, 47.1%, 14.7%, and 26.5%, respectively, which was close to the results of the EDTA treatment. For the alkaline soil studied, the second washing with the mixed chelators most effectively removed PTM owing to the activation of them after the first washing operation. The mixed chelator more effectively increased the proportion of stable fraction of PTM and maintained soil nutrients (e.g., nitrogen content) than EDTA, indicating little disturbance of alkaline soil quality after washing with the mixed chelator. After the amendment of the washed soil, there was no visible difference in the biomass weight of crops from the soils washed with different agents, indicating that the inhibitory effect of both washing agents on plant growth was effectively alleviated. The Cd and Pb contents in Z. mays were below the threshold of Hygienical Standard for Feeds of China (GB 13078-2017) (1 and 30 mg·kg-1). Moreover, after three cropping operations, the available concentrations of PTM in the soil washed with the mixed chelator were lower than those in the soil washed with EDTA, indicating the value and potential of agricultural reuse of alkaline farmland soil washed with the mixed chelator.
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Affiliation(s)
- Xiaofang Guo
- School of Environment and Resources, Taiyuan University of Science and Technology, Taiyuan, 030024, Shanxi Province, China
| | - Yu Gao
- School of Environment and Resources, Taiyuan University of Science and Technology, Taiyuan, 030024, Shanxi Province, China
| | - Wei Han
- School of Environment and Resources, Taiyuan University of Science and Technology, Taiyuan, 030024, Shanxi Province, China
| | - Guohui Zhao
- School of Environment and Resources, Taiyuan University of Science and Technology, Taiyuan, 030024, Shanxi Province, China
| | - Guixiang Zhang
- School of Environment and Resources, Taiyuan University of Science and Technology, Taiyuan, 030024, Shanxi Province, China.
| | - Dandan Liu
- School of Environment and Resources, Taiyuan University of Science and Technology, Taiyuan, 030024, Shanxi Province, China
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Li D, Chen J, Zhang X, Shi W, Li J. Structural and functional characteristics of soil microbial communities in response to different ecological risk levels of heavy metals. Front Microbiol 2022; 13:1072389. [PMID: 36569064 PMCID: PMC9772559 DOI: 10.3389/fmicb.2022.1072389] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Accepted: 11/18/2022] [Indexed: 12/13/2022] Open
Abstract
Objective The potential ecological risk index (RI) is the most commonly used method to assess heavy metals (HMs) contamination in soils. However, studies have focused on the response of soil microorganisms to different concentrations, whereas little is known about the responses of the microbial community structures and functions to HMs at different RI levels. Methods Here, we conducted soil microcosms with low (L), medium (M) and high (H) RI levels, depending on the Pb and Cd concentrations, were conducted. The original soil was used as the control (CK). High-throughput sequencing, qPCR, and Biolog plate approaches were applied to investigate the microbial community structures, abundance, diversity, metabolic capacity, functional genes, and community assembly processes. Result The abundance and alpha diversity indices for the bacteria at different RI levels were significantly lower than those of the CK. Meanwhile, the abundance and ACE index for the fungi increased significantly with RI levels. Acidobacteria, Basidiomycota and Planctomycetes were enriched as the RI level increased. Keystone taxa and co-occurrence pattern analysis showed that rare taxa play a vital role in the stability and function of the microbial community at different RI levels. Network analysis indicates that not only did the complexity and vulnerability of microbial community decrease as risk levels increased, but that the lowest number of keystone taxa was found at the H level. However, the microbial community showed enhanced intraspecific cooperation to adapt to the HMs stress. The Biolog plate data suggested that the average well color development (AWCD) reduced significantly with RI levels in bacteria, whereas the fungal AWCD was dramatically reduced only at the H level. The functional diversity indices and gene abundance for the microorganisms at the H level were significantly lower than those the CK. In addition, microbial community assembly tended to be more stochastic with an increase in RI levels. Conclusion Our results provide new insight into the ecological impacts of HMs on the soil microbiome at different risk levels, and will aid in future risk assessments for Pb and Cd contamination.
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Yu H, Xiao H, Cui Y, Liu Y, Tan W. High nitrogen addition after the application of sewage sludge compost decreased the bioavailability of heavy metals in soil. ENVIRONMENTAL RESEARCH 2022; 215:114351. [PMID: 36116488 DOI: 10.1016/j.envres.2022.114351] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2022] [Revised: 08/11/2022] [Accepted: 09/12/2022] [Indexed: 06/15/2023]
Abstract
Nitrogen (N) fertilizer is highly significant in agricultural production, but long-term N addition causes changes in quality indicators, such as soil organic matter (SOM), thus affecting the absorption and accumulation of organic pollutants. Therefore, paying more attention to organic fertilizers in the development of green agriculture is necessary. However, the accumulation of heavy metals (HMs) contained in organic fertilizers (especially sewage sludge compost (SSC)) in the soil can cause environmental contamination, but how this cumulative reaction changes with the long-term N addition remains unclear. Here the SSC impact on the bioavailability of five typical HMs (cadmium-Cd, chromium-Cr, copper-Cu, lead-Pb and arsenic-As) in the soil-plant system before and after SSC application was demonstrated through a field study in soils with different application rates of 0, 100 and 300 kg N ha-1yr-1, respectively. Our results showed that SSC application increased the concentration of most HMs in soil profiles and plant systems (wheat roots and grains), but the accumulation rate of HMs and most bioaccumulation values (BAC-bioaccumulation coefficient and BCF-bioconcentration factor) in plant systems were both lower in high-N addition soil than that in the low-N group. Moreover, speciation distribution results further indicated that SSC application increased the LB (liable available form, including F1-water soluble, F2-ion exchangeable, and F3-bound to carbonates) form of HMs and decreased the PB (potentially available form, including F4-humic acids and F6-fraction bound to organic matter) form of HMs in high-N addition soil, respectively. Those results suggested that HM bioavailability in high-N addition soil was lower than that in low-N addition soil when applied with SSC. Overall, this study found that increasing soil N content can inhibit the bioavailability of HMs when applying SSC, providing suggestions for optimizing the trialability and risk assessment of SSC application.
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Affiliation(s)
- Hanxia Yu
- School of Geographical Sciences, Fujian Normal University, Fuzhou, 350007, China; State Key Laboratory of Environmental Criteria and Risk Assessment, And State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China
| | - Haoyan Xiao
- School of Geographical Sciences, Fujian Normal University, Fuzhou, 350007, China
| | - Yili Cui
- State Key Laboratory of Environmental Criteria and Risk Assessment, And State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China; College of Resources and Environmental Sciences, China Agricultural University, Beijing, 100193, China
| | - Yanji Liu
- School of Geographical Sciences, Fujian Normal University, Fuzhou, 350007, China
| | - Wenbing Tan
- State Key Laboratory of Environmental Criteria and Risk Assessment, And State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China.
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29
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Natasha N, Shahid M, Murtaza B, Bibi I, Khalid S, Al-Kahtani AA, Naz R, Ali EF, Niazi NK, Rinklebe J, Shaheen SM. Accumulation pattern and risk assessment of potentially toxic elements in selected wastewater-irrigated soils and plants in Vehari, Pakistan. ENVIRONMENTAL RESEARCH 2022; 214:114033. [PMID: 35952735 DOI: 10.1016/j.envres.2022.114033] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 07/18/2022] [Accepted: 07/31/2022] [Indexed: 06/15/2023]
Abstract
There are scarce data about the accumulation pattern and risk assessment of potentially toxic elements (PTEs) in soil and associated potential ecological risks, especially in less-developed countries. This study aims to assess the pollution levels and potential ecological risks of PTEs (As, Cr, Cd, Cu, Ni, Mn, Pb and Zn) in wastewater-irrigated arable soils and different edible-grown plants in selected areas of Vehari, Pakistan. The results revealed that the values of PTEs in soil samples were higher than their respective limit values by 20% for As, 87% for Cd, 15% for Cu, 2% for Cr, 83% for Mn, 98% for Fe, and 7% for Zn. The values of soil risk indices such as the potential ecological risk (PERI >380 for all samples), pollution load index (PLI >4 for 94% of studied samples), and degree of contamination (Dc > 24 for all samples) showed severe soil contamination in the study area. Some vegetables exhibited a high metal accumulation index (e.g., 8.1 for onion), signifying potential associated health hazards. Thus, long-term wastewater irrigation has led to severe soil contamination, which can pose potential ecological risks via PTE accumulation in crops, particularly Cd. Therefore, to ensure food safety, frequent wastewater irrigation practices need to be minimized and managed in the study area.
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Affiliation(s)
- Natasha Natasha
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari Campus, Vehari, 61100, Pakistan
| | - Muhammad Shahid
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari Campus, Vehari, 61100, Pakistan.
| | - Behzad Murtaza
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari Campus, Vehari, 61100, Pakistan
| | - Irshad Bibi
- Institute of Soil and Environmental Sciences, University of Agriculture Faisalabad, Faisalabad, 38040, Pakistan
| | - Sana Khalid
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari Campus, Vehari, 61100, Pakistan
| | - Abdullah A Al-Kahtani
- Department of Chemistry, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Rabia Naz
- Department of Biosciences, COMSATS University Islamabad, Pakistan
| | - Esmat F Ali
- Department of Biology, College of Science, Taif University, P.O. Box 11099, Taif, 21944, Saudi Arabia
| | - Nabeel Khan Niazi
- Institute of Soil and Environmental Sciences, University of Agriculture Faisalabad, Faisalabad, 38040, Pakistan
| | - Jörg Rinklebe
- University of Wuppertal, School of Architecture and Civil Engineering, Laboratory of Soil and Groundwater Management, Institute of Foundation Engineering, Water- and Waste-Management, Pauluskirchstraße 7, 42285, Wuppertal, Germany
| | - Sabry M Shaheen
- University of Wuppertal, School of Architecture and Civil Engineering, Laboratory of Soil and Groundwater Management, Institute of Foundation Engineering, Water- and Waste-Management, Pauluskirchstraße 7, 42285, Wuppertal, Germany; King Abdulaziz University, Faculty of Meteorology, Environment, and Arid Land Agriculture, Department of Arid Land Agriculture, 21589, Jeddah, Saudi Arabia; International Research Centre of Nanotechnology for Himalayan Sustainability (IRCNHS), Shoolini University, Solan, 173212 Himachal Pradesh, India.
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Furtado E Silva JAM, García AC, Lima ESA, Souza CCB, Amaral Sobrinho NMB. Effect of short-term pig slurry amendment of soil on humified organic matter and its relationship with the dynamics of heavy metals and metals uptake by plants. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2022; 57:958-969. [PMID: 36226697 DOI: 10.1080/10934529.2022.2132795] [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: 01/21/2022] [Revised: 09/27/2022] [Accepted: 09/28/2022] [Indexed: 06/16/2023]
Abstract
The impact of pig slurry (PS) application on the structural dynamics of humic substances (HS) and on the mobility of Cu, Zn, Ni, and Pb in a dystrophic Red Nitosol planted with winter forage grasses was evaluated. After four PS applications, the humic acids (HA) and fulvic acids (FA) were characterized by spectroscopy techniques allied to chemometrics methods. The metals contents in soil, in HS and in the tissues of plant were quantified. PS application increases the total organic carbon, especially the nonhumic carbon, which contribute to increase FA content. The carbon in FA and HA increases with the highest PS dose applied, especially aliphatic structures in FA and aromatic structures in HA. The amount of Pb and Cu in FA and HA increases respectively, as well as Cu, Zn, Ni, and Pb bioavailable. PS applications increase the biomass production in grasses and the metals content accumulated in the tissues. Our study shows that the PS application modifies the structure of SOM, incorporating fragments, and modifying its dynamics, which regulates the dynamics and the accumulation of metals in soils and plants. The association of metals with soluble structures seems to inactivate their toxicity and does not affect plant growth.
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Affiliation(s)
- João A M Furtado E Silva
- Laboratory of Soil Chemistry, Department of Soil Science, Federal Rural University of Rio de Janeiro (UFRRJ), Institute of Agronomy, Seropédica, Brazil
| | - Andrés C García
- Laboratory of Soil Biological Chemistry, Department of Soil Science, Federal Rural University of Rio de Janeiro (UFRRJ), Institute of Agronomy, Seropédica, Brazil
| | - Erica S A Lima
- Laboratory of Soil Chemistry, Department of Soil Science, Federal Rural University of Rio de Janeiro (UFRRJ), Institute of Agronomy, Seropédica, Brazil
| | | | - Nelson M B Amaral Sobrinho
- Laboratory of Soil Chemistry, Department of Soil Science, Federal Rural University of Rio de Janeiro (UFRRJ), Institute of Agronomy, Seropédica, Brazil
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Zhang X, Wang B, Pan F, Cai Y, Wu X, Liu H, Guo Z. Potential pollution assessment of labile trace metals in Xixi River estuary sediments in Xiamen, China. JOURNAL OF CONTAMINANT HYDROLOGY 2022; 250:104055. [PMID: 35917655 DOI: 10.1016/j.jconhyd.2022.104055] [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: 11/29/2021] [Revised: 06/03/2022] [Accepted: 07/24/2022] [Indexed: 06/15/2023]
Abstract
The release of trace metals caused by industrial effluents and anthropogenic activities has been recorded in the Xixi River estuary, southern China. However, a thorough understanding of the behavior of trace heavy metals in Xixi River sediments is lacking. A total of 12 sediment cores were collected in June and December in the upper estuary section and mouth of the estuary. Here, an in situ high-resolution sampling technique, namely, diffusive gradients in thin films (DGT), was employed to acquire profiles of trace element concentrations and the release of bioavailable metals from sediments in different seasons. A three-step Community Bureau of Reference (BCR) sequential extraction method was used to explore the chemical speciation of trace metals in different seasons and to thereby assess the release potential of trace elements in sediments. The BCR sequential extraction results showed that the trace metals Fe, Mn, Co and Pb were mainly in the residual fraction, which rarely influences living organisms. The total mobile fractions (F1 + F2 + F3) of all trace metals were higher in winter than in summer, suggesting that accumulation occurred from summer to winter. DGT measurements showed that the intensity of sulfate reduction was higher in summer than in winter because of the high temperatures and high organic matter in summer. The intensity of sulfate and Mn(III/IV) reduction increased from the upper estuary section to the lower estuary. Fe(III) reduction decreased in summer but increased slowly in winter. The Pearson correlation results showed that the release of DGT-labile Co in pore water was related to Mn(III/IV) reduction, while the release of DGT-labile Pb was basically not controlled by the Fe-Mn-S redox transition. Abnormally high DGT-labile Pb concentrations were observed at the sampling station (XR3) closest to the estuary in winter, which might have been caused by the high Pb content in the local micro-sediments.
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Affiliation(s)
- Xiaoting Zhang
- College of Ocean and Earth Sciences, Xiamen University, Xiamen 361102, PR China
| | - Bo Wang
- College of Ocean and Earth Sciences, Xiamen University, Xiamen 361102, PR China
| | - Feng Pan
- College of the Environment and Ecology, Xiamen University, Xiamen 361102, PR China
| | - Yu Cai
- College of Ocean and Earth Sciences, Xiamen University, Xiamen 361102, PR China
| | - Xindi Wu
- College of Ocean and Earth Sciences, Xiamen University, Xiamen 361102, PR China
| | - Huatai Liu
- College of the Environment and Ecology, Xiamen University, Xiamen 361102, PR China.
| | - Zhanrong Guo
- College of Ocean and Earth Sciences, Xiamen University, Xiamen 361102, PR China.
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32
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Tzima CS, Banti CN, Hadjikakou SK. Assessment of the biological effect of metal ions and their complexes using Allium cepa and Artemia salina assays: a possible environmental implementation of biological inorganic chemistry. J Biol Inorg Chem 2022; 27:611-629. [PMID: 36149503 PMCID: PMC9569305 DOI: 10.1007/s00775-022-01963-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Accepted: 09/04/2022] [Indexed: 11/25/2022]
Abstract
The pollution of aquatic ecosystems due to the elevated concentration of a variety of contaminants, such as metal ions, poses a threat to humankind, as these ecosystems are in high relevance with human activities and survivability. The exposure in heavy metal ions is responsible for many severe chronic and pathogenic diseases and some types of cancer as well. Metal ions of the groups 11 (Cu, Ag, Au), 12 (Zn, Cd, Hg), 14 (Sn, Pb) and 15 (Sb, Bi) highly interfere with proteins leading to DNA damage and oxidative stress. While, the detection of these contaminants is mainly based on physicochemical analysis, the chemical determination, however, is deemed ineffective in some cases because of their complex nature. The development of biological models for the evaluation of the presence of metal ions is an attractive solution, which provides more insights regarding their effects. The present work critically reviews the reports published regarding the toxicity assessment of heavy metal ions through Allium cepa and Artemia salina assays. The in vivo toxicity of the agents is not only dose depended, but it is also strongly affected by their ligand type. However, there is no comprehensive study which compares the biological effect of chemical agents against Allium cepa and Artemia salina. Reports that include metal ions and complexes interaction with either Allium cepa or Artemia salina bio-indicators are included in the review.
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Affiliation(s)
- Chrysoula S Tzima
- Section of Inorganic and Analytical Chemistry, Department of Chemistry, University of Ioannina, 45110, Ioannina, Greece
| | - Christina N Banti
- Section of Inorganic and Analytical Chemistry, Department of Chemistry, University of Ioannina, 45110, Ioannina, Greece.
| | - Sotiris K Hadjikakou
- Section of Inorganic and Analytical Chemistry, Department of Chemistry, University of Ioannina, 45110, Ioannina, Greece. .,Institute of Materials Science and Computing, University Research Center of Ioannina (URCI), Ioannina, Greece.
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Ran S, He T, Zhou X, Yin D. Effects of fulvic acid and humic acid from different sources on Hg methylation in soil and accumulation in rice. J Environ Sci (China) 2022; 119:93-105. [PMID: 35934469 DOI: 10.1016/j.jes.2022.02.023] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 02/15/2022] [Accepted: 02/16/2022] [Indexed: 06/15/2023]
Abstract
Humus is often used as an organic modifier to reduce the bioaccumulation of heavy metals in plants, but the effects of different humus components from different sources on the fate of mercury (Hg) in paddy fields are still unclear. Here, fulvic acid (FA) and humic acid (HA) extracted from composted straw (CS), composted cow dung (CCD), peat soil (PM) and lignite coal (LC) were used to understand their effects on the methylation and bioaccumulation of Hg in paddy soil by pot experiments. Amendments of both FA and HA largely increased the abundance of Hg-methylating microbes and low-molecular-weight organic matters (e.g, cysteine) in paddy soil. They were also found to change the aromaticity, molecular size and Chromophoric DOM concentration of DOM, and resulted in heterogeneous effects on migration and transformation of Hg. All the FA-amended treatments increased the mobility and methylation of Hg in soil and its absorption in roots. Nevertheless, FA from different sources have heterogeneous effects on transport of Hg between rice tissues. FA-CCD and FA-PM promoted the translocation of MeHg from roots to rice grains by 32.95% and 41.12%, while FA-CS and FA-LC significantly inhibited the translocation of inorganic Hg (IHg) by 52.65% and 66.06% and of MeHg by 46.65% and 36.23%, respectively. In contrast, all HA-amended treatments reduced the mobility of soil Hg, but promoted Hg methylation in soil. Among which, HA-CCD and HA-PM promoted the translocation of MeHg in rice tissues by 88.95% and 64.10%, while its accumulation in rice grains by 28.43% and 28.69%, respectively. In general, the application of some FA and HA as organic modifiers to reduce Hg bioaccumulation in rice is not feasible.
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Affiliation(s)
- Shu Ran
- Key Laboratory of Karst Georesources and Environment (Guizhou University), Ministry of Education, Guiyang 550025, China; College of Resources and Environmental Engineering, Guizhou University, Guiyang 550025, China; Guizhou Karst Environmental Ecosystems Observation and Research Station, Ministry of Education, Guiyang 550025, China
| | - Tianrong He
- Key Laboratory of Karst Georesources and Environment (Guizhou University), Ministry of Education, Guiyang 550025, China.
| | - Xian Zhou
- Key Laboratory of Karst Georesources and Environment (Guizhou University), Ministry of Education, Guiyang 550025, China; College of Resources and Environmental Engineering, Guizhou University, Guiyang 550025, China; Guizhou Karst Environmental Ecosystems Observation and Research Station, Ministry of Education, Guiyang 550025, China
| | - Deliang Yin
- Key Laboratory of Karst Georesources and Environment (Guizhou University), Ministry of Education, Guiyang 550025, China.
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Wei T, Li X, Li H, Gao H, Guo J, Li Y, Ren X, Hua L, Jia H. The potential effectiveness of mixed bacteria-loaded biochar/activated carbon to remediate Cd, Pb co-contaminated soil and improve the performance of pakchoi plants. JOURNAL OF HAZARDOUS MATERIALS 2022; 435:129006. [PMID: 35489314 DOI: 10.1016/j.jhazmat.2022.129006] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 04/08/2022] [Accepted: 04/21/2022] [Indexed: 06/14/2023]
Abstract
Cadmium (Cd) and lead (Pb) are toxic heavy metals that cause severe soil pollution and pose health risks to humans. It is urgent to develop feasible strategies for Pb and Cd remediation. In this study, a bacteria consortium (Enterobacter asburiae G3, Enterobacter tabaci I12 and Klebsiella variicola J2 in a 1:3:3 proportion) with optimal Cd, Pb adsorption ability was constructed and immobilized on biochar (BC)/activated carbon (AC) via physisorption and sodium alginate encapsulation. The effects of mixed bacteria-loaded BC/AC on Cd and Pb remediation were investigated. The results indicated that their application reduced the DTPA-extractable Cd, Pb in soil by 22.05%-55.84% and 31.64%-48.13%, respectively. The residual Pb, Cd were increased while the exchangeable fractions were decreased. Soil urease, catalase and phosphatase activities were enhanced and soil bacterial community was improved, indicating a soil quality improvement. Consequently, the biomass of pakchoi plants was significantly increased. Cd and Pb in the shoots of pakchoi plants were decreased by 28.68%-51.01% and 24.18%-52.87%, respectively. Collectively, the bacteria-loaded BC/AC showed superior performance than free bacteria, BC and AC alone. Our study may provide a better understanding of the development of green and sustainable materials for remediation of heavy metal by the combination of BC/AC and functional bacteria.
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Affiliation(s)
- Ting Wei
- School of Environmental Science and Engineering, Shaanxi University of Science & Technology, Xi'an 710021, PR China.
| | - Xian Li
- School of Environmental Science and Engineering, Shaanxi University of Science & Technology, Xi'an 710021, PR China
| | - Hong Li
- School of Environmental Science and Engineering, Shaanxi University of Science & Technology, Xi'an 710021, PR China
| | - Han Gao
- School of Environmental Science and Engineering, Shaanxi University of Science & Technology, Xi'an 710021, PR China
| | - Junkang Guo
- School of Environmental Science and Engineering, Shaanxi University of Science & Technology, Xi'an 710021, PR China
| | - Yongtao Li
- College of Resources and Environment, South China Agricultural University, Guangzhou 510642, PR China
| | - Xinhao Ren
- School of Environmental Science and Engineering, Shaanxi University of Science & Technology, Xi'an 710021, PR China
| | - Li Hua
- School of Environmental Science and Engineering, Shaanxi University of Science & Technology, Xi'an 710021, PR China
| | - Honglei Jia
- School of Environmental Science and Engineering, Shaanxi University of Science & Technology, Xi'an 710021, PR China
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35
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Cai X, Fu J, Li X, Peng L, Yang L, Liang Y, Jiang M, Ma J, Sun L, Guo B, Yu X. Low-molecular-weight organic acid-mediated tolerance and Pb accumulation in centipedegrass under Pb stress. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 241:113755. [PMID: 35689889 DOI: 10.1016/j.ecoenv.2022.113755] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 05/01/2022] [Accepted: 06/05/2022] [Indexed: 06/15/2023]
Abstract
Lead (Pb) is one of the most harmful, toxic pollutants to the ecological environment and humans. Centipedegrass, a fast-growing warm-season turfgrass, is excellent for Pb pollution remediation. Exogenous low-molecular-weight organic acid (LMWOA) treatment is a promising approach for assisted phytoremediation. However, the effects of this treatment on the tolerance and Pb accumulation of centipedegrass are unclear. This study investigated these effects on the physiological growth response and Pb accumulation distribution characteristics of centipedegrass. Applications of 400 μM citric acid (CA), malic acid (MA) and tartaric acid (TA) significantly reduced membrane lipid peroxidation levels of leaves and improved biomass production of Pb-stressed plants. These treatments mainly increased peroxidase (POD), catalase (CAT) and ascorbate peroxidase (APX) activities and enhanced free protein (Pro), ascorbic acid (AsA) and phytochelatins (PCs) contents, ultimately improving the Pb tolerance of centipedegrass. Their promoting effects decreased as follows: TA>CA>MA. All the treatments decreased root Pb concentrations and increased stem and leaf Pb concentrations, thus increasing total Pb accumulation and TF values. MA had the best and worst effects on Pb accumulation and Pb transportation, respectively. CA had the best and worst effects on Pb transportation and Pb accumulation, respectively. TA exhibited strong effects on both Pb accumulation and transport. Furthermore, all treatments changed the subcellular Pb distribution patterns and distribution models of the chemical forms of Pb in each tissue. The root Pb concentration was more highly correlated with the Pb subcellular fraction distribution pattern, while the stem and leaf Pb concentrations were more highly correlated with the distribution models of the chemical forms of Pb. Overall, TA improved plant Pb tolerance best and promoted both Pb absorption and transportation well and is considered the best candidate for Pb-contaminated soil remediation with centipedegrass. This study provides a new idea for Pb-contaminated soil remediation with centipedegrass combined with LMWOAs.
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Affiliation(s)
- Xinyi Cai
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, Sichuan 611130, China.
| | - Jingyi Fu
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, Sichuan 611130, China.
| | - Xi Li
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, Sichuan 611130, China.
| | - Lingli Peng
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, Sichuan 611130, China.
| | - Liqi Yang
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, Sichuan 611130, China.
| | - Yahao Liang
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, Sichuan 611130, China.
| | - Mingyan Jiang
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, Sichuan 611130, China.
| | - Jun Ma
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, Sichuan 611130, China.
| | - Lingxia Sun
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, Sichuan 611130, China.
| | - Baimeng Guo
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, Sichuan 611130, China.
| | - Xiaofang Yu
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, Sichuan 611130, China.
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36
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Han M, He J, Wei X, Li S, Zhang C, Zhang H, Sun W, Yue T. Deep purification of copper from Cu(II)-EDTA acidic wastewater by Fe(III) replacement/diethyldithiocarbamate precipitation. CHEMOSPHERE 2022; 300:134546. [PMID: 35405198 DOI: 10.1016/j.chemosphere.2022.134546] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 04/03/2022] [Accepted: 04/05/2022] [Indexed: 06/14/2023]
Abstract
Cu(II)-EDTA is a highly stable typical metal-organic complex in a wide pH range (3.0-12.0) and it is difficult to deeply purify Cu(II) by conventional precipitation methods. In this study, Fe(III) replacement/diethyldithiocarbamate (DDTC) precipitation combined process is proposed as a promising strategy to achieve the deep purification of Cu(II) from Cu(II)-EDTA acidic wastewater. The underlying mechanism has also been systematically elucidated by chemical equilibriums, experiments, and density functional theory (DFT) calculations, laying a foundation for the development and application. Chemical equilibriums show that Fe(III) replacement favors the stoichiometric release of Cu(II) from Cu(II)-EDTA and the formation of Fe(III)-EDTA complex under acidic conditions. Experimentally, Cu(II) is removed (over 99.99%) and deeply purified (under 0.008 mg/L) under the optimal conditions, which is lower than the most stringent discharge standards of copper ions in electroplating effluent (<0.5 mg/L, China). DFT calculations reveal that DDTC could further precipitate the released free copper ions via the carbon disulfide (-C(=S)-S) chelating group while exhibiting a slight effect on the Fe(III) in Fe(III)-EDTA. Considering these results, the electronic structures of Cu(II) and Fe(III), as well as their interaction with EDTA and DDTC ligands, are discussed to understand the mechanism of Fe(III)/DDTC process. By introducing a low dosage of Fe(III), the DDTC could efficiently purify Cu(II) from the Cu(II)-EDTA acid wastewater and realize the near-zero discharge of metal pollutants in metal-organic complex wastewater. It is believed that the main findings may benefit the water pollution reduction and comprehensive recycling of metal resources.
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Affiliation(s)
- Mingjun Han
- School of Minerals Processing and Bioengineering, Central South University, Changsha, Hunan, 410083, China
| | - Jianyong He
- School of Minerals Processing and Bioengineering, Central South University, Changsha, Hunan, 410083, China
| | - Xin Wei
- Suzhou Dongfang Environmental Engineering Co., Ltd., Suzhou, Jiangsu, 215110, China
| | - Sai Li
- School of Minerals Processing and Bioengineering, Central South University, Changsha, Hunan, 410083, China
| | - Chenyang Zhang
- School of Minerals Processing and Bioengineering, Central South University, Changsha, Hunan, 410083, China; Key Laboratory of Hunan Province for Comprehensive Utilization of Complex Copper-Lead Zinc Associated Metal Resources, Hunan Research Institute for Nonferrous Metals, Changsha, 410100, China; State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming, 650093, China.
| | - Hongliang Zhang
- School of Minerals Processing and Bioengineering, Central South University, Changsha, Hunan, 410083, China
| | - Wei Sun
- School of Minerals Processing and Bioengineering, Central South University, Changsha, Hunan, 410083, China
| | - Tong Yue
- School of Minerals Processing and Bioengineering, Central South University, Changsha, Hunan, 410083, China
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Li B, Zhang X, Tefsen B, Wells M. From speciation to toxicity: Using a "Two-in-One" whole-cell bioreporter approach to assess harmful effects of Cd and Pb. WATER RESEARCH 2022; 217:118384. [PMID: 35427828 DOI: 10.1016/j.watres.2022.118384] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Revised: 03/21/2022] [Accepted: 03/29/2022] [Indexed: 06/14/2023]
Abstract
Due to the sheer number of contaminated sites, bioavailability-based measurement and modeling of toxicity is used to triage response; despite advances, both remain relatively cumbersome. Cadmium (Cd) and lead (Pb) are two of the most toxic and globally prevalent pollutants, disproportionately impacting disadvantaged communities. Here we demonstrate the use of high throughput lights-on bioreporter technology to measure both speciation and toxicity. The organism's response is fit-for-purpose to parameterize the Biotic Ligand Model used in risk assessment of aquatic ecotoxicity and setting environmental Water Quality Criteria. Toxicity endpoints for analogous Cd and Pb models reported in literature average 71st and 44th rank-percentile sensitivity of Genus Mean Acute Values for acute toxicity (i.e., insensitive) in comparison to the bioreporter, the unique dual-mode measurement ability of which can predict toxicity endpoints from below the 5th percentile up to the 50th rank-percentile. These results are extensible to other reporters, paving the way to cost-efficient environmental risk assessment of aquatic ecotoxicity for a wide range of priority toxic pollutants.
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Affiliation(s)
- Boling Li
- Department of Environmental Science, University of Liverpool, Brownlow Hill, Liverpool L69 7ZX, UK; Department of Biological Sciences, Xi'an Jiaotong-Liverpool University, Suzhou, Jiangsu 215123, China
| | - Xiaokai Zhang
- Institute of Environmental Processes and Pollution Control, and School of Environmental and Civil Engineering, Jiangnan University, Wuxi 214122, China
| | - Boris Tefsen
- Ronin Institute, 127 Haddon Place, Montclair, NJ 07043, United States.
| | - Mona Wells
- Ronin Institute, 127 Haddon Place, Montclair, NJ 07043, United States.
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Yang Y, Liao J, Chen Y, Tian Y, Chen Q, Gao S, Luo Z, Yu X, Lei T, Jiang M. Efficiency of heterogeneous chelating agents on the phytoremediation potential and growth of Sasa argenteostriata (Regel) E.G. Camus on Pb-contaminated soil. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 238:113603. [PMID: 35551046 DOI: 10.1016/j.ecoenv.2022.113603] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 04/23/2022] [Accepted: 05/02/2022] [Indexed: 06/15/2023]
Abstract
Ethylenediaminetetraacetic acid (EDTA) is one of the most effective chelating agents for enhancing lead (Pb) accumulation in various plant organs. However, it has a higher risk of causing secondary pollution than other chelating agents. To reduce such environmental risks and increase remediation efficiency, EDTA can be combined with degradable chelating agents for use in phytoremediation, but there are few reports on the combination of EDTA and nitrilotriacetic acid (NTA). This study evaluated the effects of combined EDTA and NTA application at different concentrations (900, 1200, or 1500 mg/kg) and with different methods (1 application or 3 applications) on dwarf bamboo (Sasa argenteostriata (Regel) E.G. Camus) growth and phytoremediation efficiency and on the soil environment in pot experiments with Pb-contaminated soil. Applying EDTA and NTA together resulted in lower soil water-soluble Pb concentrations than applying EDTA alone and therefore resulted in lower environmental risk. The increased availability of soil Pb produced a stress response in the dwarf bamboo plants, which increased their biomass significantly. Moreover, under the chelating treatments, the soil Pb availability increased, which promoted Pb translocation in plants. The Pb content in the aerial parts of the dwarf bamboo increased significantly in all treatments (translocation factors increased by 300~1500% compared with that in CK). The Pb content increase in the aerial parts caused high proline accumulation in dwarf bamboo leaves, to alleviate Pb toxicity. Maximum Pb accumulation was observed in the EN1500 treatment, which was significantly higher than that in the other treatments except the EN900 treatment. This study elucidates the choice of remediation techniques and the physiological characteristics of the plants used in such studies. In conclusion, the EN900 treatment resulted in the lowest environmental risk, greatest biomass production, and highest phytoremediation efficiency of all treatments, indicating that it has great potential for application in phytoremediation with dwarf bamboo in Pb-contaminated soil.
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Affiliation(s)
- Yixiong Yang
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, Sichuan 611130, China.
| | - Jiarong Liao
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, Sichuan 611130, China.
| | - Yahui Chen
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, Sichuan 611130, China.
| | - Yuan Tian
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, Sichuan 611130, China.
| | - Qibing Chen
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, Sichuan 611130, China.
| | - Suping Gao
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, Sichuan 611130, China.
| | - Zhenghua Luo
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, Sichuan 611130, China.
| | - Xiaofang Yu
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, Sichuan 611130, China.
| | - Ting Lei
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, Sichuan 611130, China.
| | - Mingyan Jiang
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, Sichuan 611130, China.
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39
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Amiri Zare S, Raouf F, Miveei L, Roshan Zekavat S, Abedin Pour Farahmand R. Investigation on the lead adsorption capacity of Iranian natural zeolite: modifications, structural effects, adsorption isotherms, kinetics, and mechanism studies. SEP SCI TECHNOL 2022. [DOI: 10.1080/01496395.2022.2071298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
| | - Fereshteh Raouf
- Faculty of Engineering, Chemical Engineering at University of Guilan, Rasht, Iran
| | - Leila Miveei
- Textile Engineering, University of Guilan, Rasht, Iran
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40
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Amjad M, Iqbal MM, Abbas G, Farooq ABU, Naeem MA, Imran M, Murtaza B, Nadeem M, Jacobsen SE. Assessment of cadmium and lead tolerance potential of quinoa (Chenopodium quinoa Willd) and its implications for phytoremediation and human health. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2022; 44:1487-1500. [PMID: 33528680 DOI: 10.1007/s10653-021-00826-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Accepted: 01/14/2021] [Indexed: 06/12/2023]
Abstract
Soil contamination with Cd and Pb is a worldwide problem which not only degrades the environment but also poses a serious threat for human and animal health. Phytoremediation of these contaminated soils using halophytic plants like quinoa presents an opportunity to clean the soils and use them for crop production. The current experiment was performed to evaluate the Cd and Pb tolerance potential of quinoa and subsequently its implications for human health. Three weeks old quinoa seedlings were exposed to Cd (30, 60 and 90 mg kg-1) and Pb (50, 100 and 150 mg kg-1) levels along with a control. The results revealed that plant height decreased at highest levels of soil Cd and Pb. Shoot, root and seed dry weight decreased with increasing levels of soil Cd and Pb. Tissue Cd and Pb concentrations increased with increasing levels of Cd and Pb in soil, the highest Cd was found in roots while the lowest in seeds. The highest Pb concentration was found in shoots at low Pb level, while in roots at high level of Pb. Increasing levels of Cd and Pb stimulated the activities of measured antioxidant enzymes and decreased membrane stability index. The health risk assessments of Cd and Pb revealed that hazard quotient was < 1 for both the metals. However, the results of total hazard quotient showed that value was < 1 for Pb and 1.19 for Cd showing potential carcinogenicity. This study demonstrates that quinoa has good phytoremediation potential for Cd and Pb however, the risk of Cd toxicity is challenging for human health.
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Affiliation(s)
- Muhammad Amjad
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari Campus, Vehar, Pakistan.
| | - Muhammad Mohsin Iqbal
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari Campus, Vehar, Pakistan
| | - Ghulam Abbas
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari Campus, Vehar, Pakistan
| | - Abu Bakar Umer Farooq
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari Campus, Vehar, Pakistan
| | - Muhammad Asif Naeem
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari Campus, Vehar, Pakistan
| | - Muhammad Imran
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari Campus, Vehar, Pakistan
| | - Behzad Murtaza
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari Campus, Vehar, Pakistan
| | - Muhammad Nadeem
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari Campus, Vehar, Pakistan
| | - Sven-Erik Jacobsen
- Department of Plant and Environmental Sciences, University of Copenhagen, Quinoa Quality, Teglvaerksvej 10, 4420, Regstrup, Denmark
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Nandillon R, Lebrun M, Miard F, Gaillard M, Sabatier S, Battaglia-Brunet F, Morabito D, Bourgerie S. Co-culture of Salix viminalis and Trifolium repens for the phytostabilisation of Pb and As in mine tailings amended with hardwood biochar. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2022; 44:1229-1244. [PMID: 34993733 DOI: 10.1007/s10653-021-01153-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Accepted: 11/04/2021] [Indexed: 06/14/2023]
Abstract
Metal(loid) soil pollution causes environmental and health issues, and thus those sites need to be remediated. This can be done through phytostabilization, in combination with biochar amendment. The objectives were to investigate the potential of Salix viminalis L. associated with Trifolium repens L. for the phytostabilization of biochar-amended contaminated soils by assessing (1) the tolerance of both plants to metal(loid)s, through the biomass production, (2) the concentrations of metal(loid)s in plant parts and (3) the concentrations of metal(loid)s in soil pore water and percolation waters. Results showed that plant growth affected soil pore water Physico-chemical properties and metal(loid) mobility. When comparing the mono- and poly-cultures, although pH was higher with the polyculture than the monoculture, the decrease in Pb mobility did not differ. Moreover, the leachate analysis showed that As concentration in the soil particles leached from the soil was higher in the polyculture condition, while Pb concentration was the highest in the willow vegetated condition. Finally, willow dry weight was not affected by the presence of clover, while clover dry weight was lower when it was grown with willow. In conclusion, the results showed that the willow and clover polyculture was not better than the monoculture of these two species for the phytomanagement of a former mine site amended with biochar.
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Affiliation(s)
- Romain Nandillon
- INRA USC1328, LBLGC EA 1207, University of Orleans, rue de Chartres, BP 6759, 45067, Orléans Cedex 2, France
- Environmental Consulting Engineering, IDDEA, 45160, Olivet, France
- ISTO, UMR 7327, BRGM, BP 36009, 45060, Orléans, France
| | - Manhattan Lebrun
- INRA USC1328, LBLGC EA 1207, University of Orleans, rue de Chartres, BP 6759, 45067, Orléans Cedex 2, France
| | - Florie Miard
- INRA USC1328, LBLGC EA 1207, University of Orleans, rue de Chartres, BP 6759, 45067, Orléans Cedex 2, France
| | - Marie Gaillard
- Environmental Consulting Engineering, IDDEA, 45160, Olivet, France
| | | | | | - Domenico Morabito
- INRA USC1328, LBLGC EA 1207, University of Orleans, rue de Chartres, BP 6759, 45067, Orléans Cedex 2, France
| | - Sylvain Bourgerie
- INRA USC1328, LBLGC EA 1207, University of Orleans, rue de Chartres, BP 6759, 45067, Orléans Cedex 2, France.
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Chang C, Li F, Wang Q, Hu M, Du Y, Zhang X, Zhang X, Chen C, Yu HY. Bioavailability of antimony and arsenic in a flowering cabbage-soil system: Controlling factors and interactive effect. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 815:152920. [PMID: 35007579 DOI: 10.1016/j.scitotenv.2022.152920] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Revised: 12/31/2021] [Accepted: 01/01/2022] [Indexed: 06/14/2023]
Abstract
Soil contamination with antimony (Sb) and arsenic (As) has become a well-recognized environmental and human health issue. Consumption of vegetables, especially leafy vegetables, is one of the most important sources of Sb and As exposure in humans. Accordingly, it is necessary to understand the behaviors of Sb and As in the vegetable-soil system. Moreover, although Sb and As are often assumed to have similar biogeochemical behavior, identified differences in the controlling factors affecting mobility and bioavailability of Sb and As in soils need further investigation. In this study, 112 pairs of soil and flowering cabbage samples were collected from typical farmland protection areas and vegetable-producing regions across the Pearl River Delta (PRD), South China. The contamination levels of Sb and As in soils and harvested cabbages across the PRD were investigated. The main factors affecting the mobility and bioavailability of Sb and As in the cabbage-soil system were disentangled using a random forest model. The contamination levels of Sb in the cabbages and soils of the PRD were generally low, but the soils were moderately polluted by As. Increased concentrations of Fe oxides could decrease Sb accumulation in cabbages but increased the mobilization of As in soils to some extent. In contrast, Al oxides contributed strongly to the mobilization of Sb and the immobilization of As. Moreover, an increased sand content promoted the mobility of Sb and As, whereas increased silt and clay contents showed inhibitory effects. The interactions of As and Sb with Fe oxides decreased the mobility of Sb but moderately increased the mobility of As in soils. Overall, the behaviors of Sb and As in the cabbage-soil system under the effect of several important environmental factors showed some differences indicating that these differences should be considered in the remediation of co-contaminated soils.
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Affiliation(s)
- Chunying Chang
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China; Guangdong Key Laboratory of Contaminated Sited Environmental Management and Remediation, Guangdong Provincial Academy of Environmental Science, Guangzhou 510045, China
| | - Fangbai Li
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China
| | - Qi Wang
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China
| | - Min Hu
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China
| | - Yanhong Du
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China
| | - Xiaoqing Zhang
- School of Resource and Environmental Engineering, Wuhan University of Science and Technology, 947 Heping Road, Wuhan, Hubei Province 430081, China
| | - Xiaolu Zhang
- Guangdong Key Laboratory of Contaminated Sited Environmental Management and Remediation, Guangdong Provincial Academy of Environmental Science, Guangzhou 510045, China
| | - Chunyi Chen
- Monitoring Center of Eco-Environment of Guangdong Province, China
| | - Huan-Yun Yu
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China.
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43
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Qu C, Yang S, Mortimer M, Zhang M, Chen J, Wu Y, Chen W, Cai P, Huang Q. Functional group diversity for the adsorption of lead(Pb) to bacterial cells and extracellular polymeric substances. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 295:118651. [PMID: 34883144 DOI: 10.1016/j.envpol.2021.118651] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 10/18/2021] [Accepted: 12/05/2021] [Indexed: 05/26/2023]
Abstract
Bacteria and their secreted extracellular polymeric substances (EPS) are widely distributed in ecosystems and have high capacity for heavy metal immobilization. The knowledge about the molecular-level interactions with heavy metal ions is essential for predicting the behavior of heavy metals in natural and engineering systems. This comprehensive study using potentiometric titration, Fourier-transform infrared (FTIR) spectroscopy, isothermal titration calorimetry (ITC) and X-ray absorption fine structure (XAFS) was able to reveal the functional diversity and adsorption mechanisms for Pb onto bacteira and the EPS in greater detail than ever before. We identified mono-carboxylic, multi-carboxylic, phosphodiester, phosphonic and sulfhydryl sites and found the partitioning of Pb to these functional groups varied between gram-negative and gram-positive bacterial strains, the soluble and cell-bound EPS and Pb concentrations. The sulfhydryl and phosphodiester groups preferentially complexed with Pb in P. putida cells, while multifunctional carboxylic groups promoted Pb adsorption in B. subtilis cells and the protein fractions in EPS. Though the functional site diversity, the adsorption of Pb to organic ligands occurred spontaneously through a universal entropy increase and inner-sphere complexation mechanism. The functional group scale knowledge have implications for the modeling of heavy metal behavior in the environment and application of these biological resources.
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Affiliation(s)
- Chenchen Qu
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Shanshan Yang
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, China; State Environmental Protection Key Laboratory of Soil Health and Green Remediation, Huazhong Agricultural University, Wuhan, 430070, China
| | - Monika Mortimer
- Institute of Environmental and Health Sciences, China Jiliang University, Hangzhou, 310018, China
| | - Ming Zhang
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Jinzhao Chen
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, China; State Environmental Protection Key Laboratory of Soil Health and Green Remediation, Huazhong Agricultural University, Wuhan, 430070, China
| | - Yichao Wu
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Wenli Chen
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Peng Cai
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, China; State Environmental Protection Key Laboratory of Soil Health and Green Remediation, Huazhong Agricultural University, Wuhan, 430070, China.
| | - Qiaoyun Huang
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430070, China; State Environmental Protection Key Laboratory of Soil Health and Green Remediation, Huazhong Agricultural University, Wuhan, 430070, China
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44
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Yan Y, Wan B, Mansor M, Wang X, Zhang Q, Kappler A, Feng X. Co-sorption of metal ions and inorganic anions/organic ligands on environmental minerals: A review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 803:149918. [PMID: 34482133 DOI: 10.1016/j.scitotenv.2021.149918] [Citation(s) in RCA: 37] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2021] [Revised: 07/31/2021] [Accepted: 08/22/2021] [Indexed: 05/21/2023]
Abstract
Co-sorption of metal ions and anions/ligands at the mineral-water interface plays a critical role in regulating the mobility, transport, fate, and bioavailability of these components in natural environments. This review focuses on co-sorption of metal ions and naturally occurring anions/ligands on environmentally relevant minerals. The underlying mechanisms for their interfacial reactions are summarized and the environmental impacts are discussed. Co-sorption mechanisms of these components depend on a variety of factors, such as the identity and properties of minerals, pH, species and concentration of metal ions and anions/ligands, addition sequence of co-sorbed ions, and reaction time. The simultaneous presence of metal ions and anions/ligands alters the initial sorption behaviors with promotive or competitive effects. Promotive effects are mainly attributed to surface electrostatic interactions, ternary surface complexation, and surface precipitation, especially for the co-sorption systems of metal ions and inorganic anions on minerals. Competitive effects involve potential complexation of metal-anions/ligands in solution or their competition for surface adsorption sites. Organic ligands usually increase metal ion sorption on minerals at low pH via forming ternary surface complexes or surface precipitates, but inhibit metal ion sorption via the formation of aqueous complexes at high pH. The different mechanisms may act simultaneously during metal ion and anion/ligand co-sorption on minerals. Finally, the potential application for remediation of metal-contaminated sites is discussed based on the different co-sorption behaviors. Future challenges and topics are raised for metal-anion/ligand co-sorption research.
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Affiliation(s)
- Yupeng Yan
- Key Laboratory of Poyang Lake Watershed Agricultural Resources and Ecology of Jiangxi Province, College of Land Resources and Environment, Jiangxi Agricultural University, Nanchang 330045, People's Republic of China; Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtze River), Ministry of Agriculture and Rural Affairs, College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, People's Republic of China
| | - Biao Wan
- Geomicrobiology, Center for Applied Geosciences, University of Tuebingen, 72076 Tuebingen, Germany.
| | - Muammar Mansor
- Geomicrobiology, Center for Applied Geosciences, University of Tuebingen, 72076 Tuebingen, Germany
| | - Xiaoming Wang
- Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtze River), Ministry of Agriculture and Rural Affairs, College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, People's Republic of China
| | - Qin Zhang
- Key Laboratory of Poyang Lake Watershed Agricultural Resources and Ecology of Jiangxi Province, College of Land Resources and Environment, Jiangxi Agricultural University, Nanchang 330045, People's Republic of China
| | - Andreas Kappler
- Geomicrobiology, Center for Applied Geosciences, University of Tuebingen, 72076 Tuebingen, Germany; Cluster of Excellence: EXC 2124: Controlling Microbes to Fight Infections, Tübingen, Germany
| | - Xionghan Feng
- Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtze River), Ministry of Agriculture and Rural Affairs, College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, People's Republic of China.
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45
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Zhang Y, Huang H, Yu H, Zhan J, Ye D, Zheng Z, Zhang X, Wang Y, Li T. The changes of rhizosphere characteristics contributed to enhanced Pb accumulation in Athyrium wardii (Hook.) Makino after nitrilotriacetic acid application. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:6184-6193. [PMID: 34436720 DOI: 10.1007/s11356-021-15476-z] [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: 04/19/2021] [Accepted: 07/13/2021] [Indexed: 06/13/2023]
Abstract
Chelant-assisted phytoremediation may modify plant rhizosphere, which is closely related to heavy metal (HM) accumulation in plants. This work focused on the effects of nitrilotriacetic acid (NTA) on rhizosphere characteristics to investigate the mechanisms of lead (Pb) accumulation in Athyrium wardii (Hook.) Makino with exposure to 800 mg kg-1 Pb. After NTA application, Pb accumulation in the underground part of A. wardii increased by 14.3%, accompanying with some changes for the rhizosphere soils. Soil pH decreased by 0.37 units, and the dissolved organic carbon (DOC) content in the rhizosphere soils significantly increased by 7.6%. The urease, acid phosphatase, and catalase activities in the rhizosphere soils significantly increased by 104.8%, 19.7%, and 27.1%, respectively. However, a slight inhibition on microbial activities was observed in the rhizosphere of A. wardii after NTA application. Soil respiration decreased by 8.9%, and microbial biomass carbon decreased by 8.9% in the rhizosphere soils, indicating that NTA addition might recruit some microorganisms to maintain rhizosphere functions in Pb-contaminated soils while inhibiting others with low tolerance to Pb. Results suggest that lower pH, more DOC exudation, and higher soil enzyme activities after NTA application contributed to the increase of Pb accumulation in A. wardii. This study gave some preliminary evidence for NTA-assisted Pb remediation by A. wardii by modifying rhizosphere characteristics.
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Affiliation(s)
- Yunhong Zhang
- College of Resources, Sichuan Agricultural University, 211 Huimin Road, Chengdu, 611130, Sichuan, China
| | - Huagang Huang
- College of Resources, Sichuan Agricultural University, 211 Huimin Road, Chengdu, 611130, Sichuan, China
| | - Haiying Yu
- College of Resources, Sichuan Agricultural University, 211 Huimin Road, Chengdu, 611130, Sichuan, China
| | - Juan Zhan
- CAS Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China
| | - Daihua Ye
- College of Resources, Sichuan Agricultural University, 211 Huimin Road, Chengdu, 611130, Sichuan, China
| | - Zicheng Zheng
- College of Resources, Sichuan Agricultural University, 211 Huimin Road, Chengdu, 611130, Sichuan, China
| | - Xizhou Zhang
- College of Resources, Sichuan Agricultural University, 211 Huimin Road, Chengdu, 611130, Sichuan, China
| | - Yongdong Wang
- College of Resources, Sichuan Agricultural University, 211 Huimin Road, Chengdu, 611130, Sichuan, China
| | - Tingxuan Li
- College of Resources, Sichuan Agricultural University, 211 Huimin Road, Chengdu, 611130, Sichuan, China.
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Gerbehaye C, Bernaerts KV, Mincheva R, Raquez JM. Solid-State Modification of Poly(Butylene Terephthalate): Design of Process from Calorimetric Methods for Catalyst Investigation to Reactive Extrusion. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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47
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Zhong Q, Li L, He M, Ouyang W, Lin C, Liu X. Toxicity and bioavailability of antimony to the earthworm (Eisenia fetida) in different agricultural soils. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 291:118215. [PMID: 34740293 DOI: 10.1016/j.envpol.2021.118215] [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: 02/07/2021] [Revised: 09/17/2021] [Accepted: 09/20/2021] [Indexed: 06/13/2023]
Abstract
Laboratory experiments in which earthworms were exposed to four different Sb spiked agricultural soils (acidic, neutral, alkaline and calcareous alkaline soil) were conducted in a climate-controlled room. The study surveyed the toxicity of Sb to the Eisenia fetida at the individual (mortality, growth inhibition, Sb accumulation), physiological (enzymatic activities), subcellular and tissue levels (histological damage), and for the induction of an avoidance response of Sb. The results showed that earthworms clearly avoided Sb spiked soil, and the avoidance response tended to be correlated to the exposure dose. The EC50 values of the net avoidance response in the four soils were as followed: S1 (acidic soil, 135 ± 37 mg kg-1) < S3 (alkaline soil, 430 ± 114 mg kg-1) < S4 (calcareous alkaline soil, 455 ± 29 mg kg-1) < S2 (neutral soil, 946 ± 151 mg kg-1). Different toxic effects of Sb to earthworms cultivated in the four types of soils were observed. Antimony was more toxic in a sandy alkaline soil than that in the other three soils tested. The LC50 of the 28 d mortality ranged as follows: S3 (22.2 ± 0.1 mg kg-1) < S2 (372 ± 177 mg kg-1) < S4 (491 ± 140 mg kg-1) < S1 (497 ± 29 mg kg-1). Changes in oxidative stress and the subcellular distribution of Sb in earthworms induced by Sb exposure differed between soil types. Additionally, histological damage in earthworm's epidermis and intestine were observed under Sb stress. Mortality, growth inhibition and Sb accumulation in the earthworms tended to increase with Sb exposure regardless of soil type and were all significantly correlated with the exposure dose. The growth inhibition and Sb concentration in tissues of earthworms were sensitive indicators of Sb bioavailability. The relatively comprehensive toxicological data provided herein can contribute to the toxicity threshold and assessment of bioavailability of Sb contaminated agricultural soil, and then to the ecological risk assessments.
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Affiliation(s)
- Qianyun Zhong
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, No. 19 Xinjiekouwai Street, Beijing, 100875, China
| | - Lianzhen Li
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264003, China
| | - Mengchang He
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, No. 19 Xinjiekouwai Street, Beijing, 100875, China.
| | - Wei Ouyang
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, No. 19 Xinjiekouwai Street, Beijing, 100875, China
| | - Chunye Lin
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, No. 19 Xinjiekouwai Street, Beijing, 100875, China
| | - Xitao Liu
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, No. 19 Xinjiekouwai Street, Beijing, 100875, China
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48
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Amorim HCS, Hurtarte LCC, Vergütz L, Silva IR, Costa ODV, Pacheco AA, Fontes MPF. Lead speciation and availability affected by plants in a contaminated soil. CHEMOSPHERE 2021; 285:131468. [PMID: 34271465 DOI: 10.1016/j.chemosphere.2021.131468] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Revised: 07/05/2021] [Accepted: 07/06/2021] [Indexed: 06/13/2023]
Abstract
Changes in lead (Pb) speciation in the rhizosphere may be plant species-dependent and dictate Pb fate and behavior in the soil-plant system. X-ray absorption near edge structure (XANES) spectroscopy can explain how these changes affect Pb availability in soils and its uptake by plants. We investigated the changes in Pb speciation and availability in the rhizosphere of eucalypt (Eucalyptus urophylla x Eucalyptus grandis), palisade grass (Urochloa brizantha cv. Marandu), and Indian mustard (Brassica juncea L.) using XANES spectroscopy. A greenhouse experiment was performed in a complete randomized design, with three plant species and a no plant control treatment. After three months, rhizosphere and bulk soil samples were collected, Pb speciation was assessed by Pb L3-edge XANES spectroscopy, and Pb concentration was determined in plant tissue. In bulk soil, we found Pb primarily as Pb-Il (Pb sorbed to illite; 48%) and lead monoxide (PbO; 36%). In the rhizosphere, Pb-Ka (Pb sorbed to kaolinite; 33-56%) and (CH₃COO)₂Pb (25-41%) were the main Pb forms, the latter suggesting Pb complexation by low molecular weight organic acids (LMWOAs). Palisade grass rhizospheric soil had a lower abundance of Pb-Ka and a higher abundance of (CH₃COO)₂Pb than eucalypt and mustard, which led to low Pb concentration in plant tissue. LMWOAs exudation followed by Pb2+ complexation is the apparent mechanism used by palisade grass to detoxify the rhizosphere and control Pb uptake. Given its low Pb uptake and potential to complex Pb in organic forms, palisade grass may be a promising species for Pb phytostabilization in contaminated soils.
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Affiliation(s)
- Helen C S Amorim
- Universidade Federal de Viçosa, Soil Science Department, Viçosa, MG, 36570-900, Brazil.
| | - Luís C C Hurtarte
- Lehrstuhl für Bodenkunde, Research Department Ecology and Ecosystem Management, Technische Universität München, Emil-Ramann-Straße 2, Freising, 85354, Germany
| | - Leonardus Vergütz
- Universidade Federal de Viçosa, Soil Science Department, Viçosa, MG, 36570-900, Brazil
| | - Ivo R Silva
- Universidade Federal de Viçosa, Soil Science Department, Viçosa, MG, 36570-900, Brazil
| | - Oldair D V Costa
- Universidade Federal Do Reconcavo da Bahia, Agricultural, Environmental, and Biological Sciences, 710 Rua Rui Barbosa, Cruz Das Almas, BA, 44380-000, Brazil
| | - Anderson A Pacheco
- Universidade Federal de Viçosa, Soil Science Department, Viçosa, MG, 36570-900, Brazil
| | - Maurício P F Fontes
- Universidade Federal de Viçosa, Soil Science Department, Viçosa, MG, 36570-900, Brazil
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Yoon IH, Park CW, Kim I, Yang HM, Kim SM, Kim JH. Characteristic and remediation of radioactive soil in nuclear facility sites: a critical review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:67990-68005. [PMID: 34651269 DOI: 10.1007/s11356-021-16782-2] [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: 03/09/2021] [Accepted: 09/23/2021] [Indexed: 06/13/2023]
Abstract
A huge amount of radioactive soil has been generated through decommissioning of nuclear facilities around the world. This review focuses on the difficulties and complexities associated with the remediation of radioactive soils at the site level; therefore, laboratory studies were excluded from this review. The problems faced while remediating radioactive soils using techniques based on strategies such as dry separation, soil washing, flotation separation, thermal desorption, electrokinetic remediation, and phytoremediation are discussed, along with appropriate examples. Various factors such as soil type, particle size, the fraction of fine particles, and radionuclide characteristics that strongly influence radioactive soil decontamination processes are highlighted. In this review, we also survey and compare the pool of available technologies currently being used for the remediation of radionuclide-contaminated soils, as well as the economic aspects of soil remediation using different techniques. This review demonstrates the importance of the integrated role of various factors in determining the effectiveness of the radioactive soil decontamination process.
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Affiliation(s)
- In-Ho Yoon
- Decommissioning Technology Research Division, Korea Atomic Energy Research Institute, 989-111, Daedeokdae-ro, Yuseong-gu, Daejeon, 34057, Republic of Korea.
| | - Chan Woo Park
- Decommissioning Technology Research Division, Korea Atomic Energy Research Institute, 989-111, Daedeokdae-ro, Yuseong-gu, Daejeon, 34057, Republic of Korea
| | - Ilgook Kim
- Decommissioning Technology Research Division, Korea Atomic Energy Research Institute, 989-111, Daedeokdae-ro, Yuseong-gu, Daejeon, 34057, Republic of Korea
| | - Hee-Man Yang
- Decommissioning Technology Research Division, Korea Atomic Energy Research Institute, 989-111, Daedeokdae-ro, Yuseong-gu, Daejeon, 34057, Republic of Korea
| | - Sung-Man Kim
- Decommissioning Technology Research Division, Korea Atomic Energy Research Institute, 989-111, Daedeokdae-ro, Yuseong-gu, Daejeon, 34057, Republic of Korea
| | - June-Hyun Kim
- Decommissioning Technology Research Division, Korea Atomic Energy Research Institute, 989-111, Daedeokdae-ro, Yuseong-gu, Daejeon, 34057, Republic of Korea
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Leng Y, Lu M, Li F, Yang B, Hu ZT. Citric acid-assisted phytoextraction of trace elements in composted municipal sludge by garden plants. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 288:117699. [PMID: 34271519 DOI: 10.1016/j.envpol.2021.117699] [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: 04/30/2021] [Revised: 06/19/2021] [Accepted: 06/30/2021] [Indexed: 06/13/2023]
Abstract
Sludge landscaping after compost stabilization is a popular recycling process; however, until trace elements (TEs) are extracted by plants and reduced to safe concentrations, they present a potential exposure risk. Three garden plants, Liriope platyphylla Wang et Tang (L. platyphylla), Iris tectorum Maxim (I. tectorum), and Photinia x fraseri Dress (P. x fraseri), were selected for field experiments, and their ability to phytoremediate TEs and the promotion effect of citric acid (CA) were studied over 3 months of observation. Among the three kinds of plants, L. platyphylla had the highest biomass per unit soil area, and the CA treatment further increased the biomass of this plant per unit soil area as well as the uptake of TEs. When treated with 3 mmol kg-1 CA, L. platyphylla showed increases in the bioconcentration factors of Cu, Zn, Pb, and Cd by 24%, 63%, 27%, and 123%, respectively. Because of the large biomass and high concentrations of TEs, L. platyphylla had high phytoremediation indexes for Zn, Cu, Pb, Ni, and Cd, which reached 18.5, 3.7, 3.2, 2.2, and 0.4 mg m-2, respectively, and were further improved by 60%-187% by the CA treatment. These advantages indicate the potential usefulness of L. platyphylla for phytoremediation. The results provide basic data and technical support for the use of sludge-based compost and phytoremediation by garden plants.
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Affiliation(s)
- Yaling Leng
- College of Environment, Zhejiang University of Technology, Hangzhou, 310032, China
| | - Minying Lu
- College of Environment, Zhejiang University of Technology, Hangzhou, 310032, China
| | - Feili Li
- College of Environment, Zhejiang University of Technology, Hangzhou, 310032, China.
| | - Boxuan Yang
- College of Environment, Zhejiang University of Technology, Hangzhou, 310032, China
| | - Zhong-Ting Hu
- College of Environment, Zhejiang University of Technology, Hangzhou, 310032, China; Zhejiang PUZE Environmental Protection Technology Pte Ltd, Ningbo, 315301, China
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