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Ngwenya N, Nuapia Y, Risenga I, Chimuka L. Influence of Different Rates of Plant-Based Compost on Clay Soil Metal Behavior and Human Health Risk Assessment in Moringa oleifera Leaf Biomass. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2024; 112:68. [PMID: 38722367 PMCID: PMC11082029 DOI: 10.1007/s00128-024-03894-x] [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: 01/22/2024] [Accepted: 04/09/2024] [Indexed: 05/12/2024]
Abstract
An investigation of the impact of adding plant-based organic compost to clay soil from a Moringa oleifera farm focusing on the metal content, bioavailability, and accumulation of nutrients in M. oleifera leaves was conducted. Clay soil was mixed with 15%, 30%, 45% and 60% plant-based organic compost (by volume) in 20 cm wide, 2 L pots. Moringa oleifera plants were planted in four replicates of each treatment and control group. Results revealed that the addition of compost significantly (P < 0.05) altered the concentration of metals in the soil. Correspondingly, accumulation of nutrients in M. oleifera leaves increased with the addition of compost to the soil, except for cobalt and chromium. Trace elements had minimal bioavailability in the amended soils, and their presence in the leaves was lower than the permissible trace metal levels in food. The 30% combination had the highest concentration of calcium (45 042.5 mg/kg), magnesium (17430.0 mg/kg) and phosphorous (8802. 5 mg/kg) in M. oleifera leaves. The study concluded the addition of compost improved bioavailability of nutrients in the soil and their concentration in M. oleifera leaves. The target hazard quotients for heavy metals was less than one, indicating that M. oleifera leaf biomass harvested from soil amended with plant-based compost is safe for human consumption. These results serve as guidelines for recommended organic certification requiremets where plant-based compost is often used in the fast-growing herbal industry.
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Affiliation(s)
- N Ngwenya
- School of Animal, Plant, & Environmental Science, University of Witwatersrand, Johannesburg, South Africa
| | - Y Nuapia
- Pharmacy Department, School of Healthcare Sciences, University of Limpopo, Polokwane, South Africa
| | - I Risenga
- School of Animal, Plant, & Environmental Science, University of Witwatersrand, Johannesburg, South Africa
| | - L Chimuka
- Molecular Sciences Institute, School of Chemistry, University of Witwatersrand, Johannesburg, South Africa.
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de Carvalho Vicente M, Trevisan CL, de Carvalho ACB, de Oliveira BCV, de Rezende CE, Machado WV, Wasserman JC. Geochemical fractionation of trace metals and ecological risk assessment of surface sediments in Sepetiba Bay, Brazil. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:14254-14269. [PMID: 38273087 DOI: 10.1007/s11356-024-32095-6] [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: 10/27/2023] [Accepted: 01/16/2024] [Indexed: 01/27/2024]
Abstract
The Sepetiba Bay (Southeast Brazil) is a known Cd- and Zn-contaminated site that received spills of a large slag pile leachate from a Zn smelter. With important harbors, Sepetiba Bay demands periodic dredging operations which affect the mobility of the metals. The main goal of this work was to assess metal mobility in sediments and its associated toxicity in a fictive dredging area, to evaluate the risks of the operation. To achieve this goal, 18 superficial sediment samples were collected and characterized for pH and Eh. Sediments were analyzed for grain size, organic carbon, and total nitrogen, and metal mobility was evaluated with a sequential extraction procedure, proposed by the European Community Bureau of Reference (BCR). The results demonstrate that Cd and Zn are mainly associated with the exchangeable fraction (mean concentrations 1.4 mg kg-1 and 149.4 mg kg-1, respectively) and reducible fractions (mean concentrations 0.3 mg kg-1 and 65.5 mg kg-1, respectively), while Fe, Cr, Cu, Ni, and Al were associated with the residual fraction. Metals in the residual fraction are probably associated with the mineral lattice of the sediment and should not represent an environmental risk for the biota. The application of the enrichment factor and three risk assessment indexes (Risk Assessment Code, Risky Pollution Index, and Bioavailability Risk Assessment Index) show that the sediments are considerably enriched in metals that constitute a relevant risk for the sediment biota. In the case of dredging operations, Cd and Zn should be released to the overlying waters and be available to organisms, threatening the whole ecosystem. The proposed approach was shown to be much more precise than what is frequently presented in the Environmental Impact Assessments that only consider the threshold limits of the legislation.
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Affiliation(s)
- Murilo de Carvalho Vicente
- Programa de Pós-Graduação em Geoquímica Ambiental, Universidade Federal Fluminense, Outeiro de São João Batista s/n, Campus do Valonguinho, Niterói, RJ, 24020-141, Brazil
| | - Cleuza Leatriz Trevisan
- Programa de Pós-Graduação em Geoquímica Ambiental, Universidade Federal Fluminense, Outeiro de São João Batista s/n, Campus do Valonguinho, Niterói, RJ, 24020-141, Brazil
| | - Angelo Cezar Borges de Carvalho
- Programa de Pós-Graduação em Geoquímica Ambiental, Universidade Federal Fluminense, Outeiro de São João Batista s/n, Campus do Valonguinho, Niterói, RJ, 24020-141, Brazil
- Departamento de Ciências Ambientais, Universidade Federal de São Paulo, Rua São Nicolau 210, Diadema, SP, 09913030, Brazil
| | - Braulio Cherene Vaz de Oliveira
- Laboratório de Ciências Ambientais - LCA, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Av. Alberto Lamego, 2000 - Parque Califórnia, Campos dos Goytacazes, RJ, CEP 28013-602, Brazil
| | - Carlos Eduardo de Rezende
- Laboratório de Ciências Ambientais - LCA, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Av. Alberto Lamego, 2000 - Parque Califórnia, Campos dos Goytacazes, RJ, CEP 28013-602, Brazil
| | - Wilson Valle Machado
- Programa de Pós-Graduação em Geoquímica Ambiental, Universidade Federal Fluminense, Outeiro de São João Batista s/n, Campus do Valonguinho, Niterói, RJ, 24020-141, Brazil
| | - Julio Cesar Wasserman
- Programa de Pós-Graduação em Geoquímica Ambiental, Universidade Federal Fluminense, Outeiro de São João Batista s/n, Campus do Valonguinho, Niterói, RJ, 24020-141, Brazil.
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Han B, Liu J, Zhu R, Chen Q. Clay minerals inhibit the release of Cd(II) during the phase transformation of Cd(II)-ferrihydrite coprecipitates. JOURNAL OF HAZARDOUS MATERIALS 2024; 462:132723. [PMID: 37827108 DOI: 10.1016/j.jhazmat.2023.132723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 09/15/2023] [Accepted: 10/03/2023] [Indexed: 10/14/2023]
Abstract
Clay minerals and iron (hydr)oxides are important geosorbents in controlling the migration of heavy metal cations in the environment. Despite the widespread occurrence of clay minerals/iron (hydr)oxides composites, their complex mutual effects on the fate of heavy metal cations are not well recognized. In this work, we investigated the effect of clay minerals on the redistribution of Cd(II) during the phase transformation of ferrihydrite containing coprecipitated Cd(II) (Cd-Fh). Three systems were considered: i.e., Cd-Fh, Cd-Fh/kaolinite composite, and Cd-Fh/montmorillonite composite. Our results showed that the transformation of Fh into goethite and hematite caused the release of Cd(II), while the presence of kaolinite and montmorillonite inhibited the phase transformation of Fh and the release of Cd(II), with montmorillonite being more effective in these process. Multiple factors contributed to the reduced release of Cd(II), including the retarded transformation of Fh, the buffering of solution pH, and the re-adsorption of the released Cd(II). Our findings show that clay minerals have multiple effects in reducing the release of heavy metal cations from Fh during its transformation process, which sheds new light on understanding the critical roles of nanominerals in modulating the migration and bioavailability of heavy metal cations in the environment.
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Affiliation(s)
- Bin Han
- CAS Key Laboratory of Mineralogy and Metallogeny/Guangdong Provincial Key Laboratory of Mineral Physics and Materials, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences (CAS), Guangzhou 510640, China; CAS Center for Excellence in Deep Earth Science, Guangzhou 510640, China; University of Chinese Academy of Science, Beijing 100049, China
| | - Jing Liu
- State Key Laboratory of Lunar and Planetary Sciences, Macau University of Science and Technology, Taipa 999078, Macau.
| | - Runliang Zhu
- CAS Key Laboratory of Mineralogy and Metallogeny/Guangdong Provincial Key Laboratory of Mineral Physics and Materials, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences (CAS), Guangzhou 510640, China; CAS Center for Excellence in Deep Earth Science, Guangzhou 510640, China; University of Chinese Academy of Science, Beijing 100049, China
| | - Qingze Chen
- CAS Key Laboratory of Mineralogy and Metallogeny/Guangdong Provincial Key Laboratory of Mineral Physics and Materials, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences (CAS), Guangzhou 510640, China; CAS Center for Excellence in Deep Earth Science, Guangzhou 510640, China; University of Chinese Academy of Science, Beijing 100049, China.
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Verma A, Yadav S, Kumar R. Geochemical fractionation, bioavailability, ecological and human health risk assessment of metals in topsoils of an emerging industrial cluster near New Delhi. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2023; 45:9041-9066. [PMID: 36932290 DOI: 10.1007/s10653-023-01536-5] [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: 09/29/2022] [Accepted: 03/05/2023] [Indexed: 06/18/2023]
Abstract
Urban spaces have become sink for metal-rich waste, particularly in unorganized industrial clusters and metro-cities. Geochemical distribution of metals in different forms and their mobility and bioavailability in topsoils of Bhiwadi Industrial Cluster (BIC) near New Delhi are studies following m-BCR-SEP. Contamination factor (Cf), risk assessment code (RAC), ecological risk assessment (Er), and carcinogenic and non-carcinogenic health risk (HRA) were calculated to assess health and environmental risks. Residual fraction (F4) contained considerable amounts of Cd (57.2%), Cr (81.5%), Fe (86.1%), Mn (62.5%), Ni (58.3%), and V (71.4%). Pb was present in reducible fraction (F2; 52.8%), whereas Cu was distributed in F2 (33.3%) and F4 (31.6%). Zn showed equal distribution in acid exchangeable (F1; 33.9%) and oxidizable fraction (F3; 32.5%). High Cf was observed for Zn (0.9-20.9), Cu (0.46-17) and Pb (0.2-9.9). RAC indicated high risk of Cd, Cu, Mn, Ni, and Zn due to their high mobility and toxicity. High potential bioavailability of Cu, Pb, and Zn (> 65%) was found in samples collected near to metal casting, electroplating, and automobile part manufacturing industries. Considerable to extremely high ecological risk was observed for Cd, low to high risk for Cu, low risk to moderate risk for Cr, Mn, Ni, Zn, and Pb. All topsoil samples were in low to very high-risk range for metals. Ingestion was major pathway of metals followed by dermal and inhalation. Children were more prone to non-carcinogenic risks (hazardous index: 3.6). Topsoils had high carcinogenic risk to exposed population for Cd, Cr, Ni, and Pb.
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Affiliation(s)
- Anju Verma
- School of Environmental Sciences, Jawaharlal Nehru University, New Delhi, 110067, India
| | - Sudesh Yadav
- School of Environmental Sciences, Jawaharlal Nehru University, New Delhi, 110067, India.
| | - Rakesh Kumar
- Department of Environmental Sciences, University of Jammu, Jammu, 180006, India
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Cheema AI, Liu G, Yousaf B, Ashraf A, Lu M, Irshad S, Pikon K, Mujtaba Munir MA, Rashid MS. Influence of biochar produced from negative pressure-induced carbonization on transformation of potentially toxic metal(loid)s concerning plant physiological characteristics in industrially contaminated soil. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 347:119018. [PMID: 37748293 DOI: 10.1016/j.jenvman.2023.119018] [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: 05/23/2023] [Revised: 09/03/2023] [Accepted: 09/14/2023] [Indexed: 09/27/2023]
Abstract
Soil contamination and its subsequent impact on the food chain is a pressing challenge in the present day. The application of biochar has demonstrated a significant and positive effect on soil health, thereby enhancing plant growth and development. However, the application of biochar (BC) produced from negative pressure-induced carbonization to mitigate metal(loid) contamination is a new strategy that has been studied in current research. Results depicted that the application of biochar derived from the negative pressure carbonization (vacuum-assisted biochar (VBC) has a significant (p ≤ 0.05) positive impact on plant growth and physiological characteristics by influencing immobilization and speciation of metal(loid) in the soil system. Moreover, the interactive effect of VBC on physiological characteristics (photosynthesis, gas exchange, and chlorophyll contents) and antioxidant activities of maize (Zea mays L.) was significantly (p ≤ 0.05) positive by confining the translocation and movement of metal(loid)s to the aerial part of the maize plant. X-ray diffraction (XRD) provided information on the structural and chemical changes induced by the VBC-500 °C explaining metal(loid) adsorption onto mineral surfaces and complexation that can affect their mobility, availability, and toxicity in the contaminated soil. Fourier transform infrared spectroscopy (FTIR) further provided a more detailed understanding of the metal(loid)s and biochar complexation mechanisms influenced by VBC-based functional groups -OH, C-Hn, -COOH, CO, C-O-C, CC, C-O, C-H, OH, and C-C in the binding process. These results suggest that the application of biochar prepared at 500 °C under negative pressure-induced carbonization conditions to the soil is the most efficient way to reduce the uptake and transfer of metal(loid)s by influencing their mobility and availability in the soil-plant system.
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Affiliation(s)
- Ayesha Imtiyaz Cheema
- CAS-Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, PR China
| | - Guijian Liu
- CAS-Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, PR China.
| | - Balal Yousaf
- Department of Technologies and Installations for Waste Management, Faculty of Energy and Environmental Engineering, Silesian University of Technology, 44 -100, Gliwice, Poland
| | - Aniqa Ashraf
- CAS-Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, PR China
| | - Muyuan Lu
- CAS-Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, PR China
| | - Samina Irshad
- CAS-Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, PR China
| | - Krzysztof Pikon
- Department of Technologies and Installations for Waste Management, Faculty of Energy and Environmental Engineering, Silesian University of Technology, 44 -100, Gliwice, Poland
| | - Mehr Ahmed Mujtaba Munir
- College of Environment, Zhejiang University of Technology, No. 18 Chaowang Road, Hangzhou, 310014, China; Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, Hangzhou, 310014, China
| | - Muhammad Saqib Rashid
- Key Laboratory of Plant Nutrition and Fertilizer in South Region, Ministry of Agriculture, Guangdong Key Laboratory of Nutrient Cycling and Farmland Conservation, Institute of Agricultural Resources and Environment, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, PR China
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Tan B, Zeng Y, Li Y, Tan X, Liu C, Li L, Zhuang W, Li Z. Probing the effects of silicon amendment on combined stressors on rice: Lead pollution and blast fungus (Magnaporthe oryzae) infection. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 264:115443. [PMID: 37683428 DOI: 10.1016/j.ecoenv.2023.115443] [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: 12/24/2022] [Revised: 08/20/2023] [Accepted: 09/03/2023] [Indexed: 09/10/2023]
Abstract
As agroecology deteriorates, agricultural production is threatened by the combined stressors of exposure to environmental pollutants and pathogenic microbes. Proper agronomic practices for crop growth management and fertilization require understanding plant tolerance strategies. Both rice blast and heavy metals substantially impair rice crops, while silicon (Si) is an effective amendment to alleviate the combined stressors. Herein, this study was conducted to investigate the rice physiology and pathology perspective on the mechanism of Si alleviation against both lead (Pb) toxicity and Magnaporthe oryzae infection, utilizing pot experiments with inoculation of the virulent Magnaporthe oryzae strain. Exogenous Si reduced the phyto-availability and plant absorption of Pb, resulting in a 73.5% reduction in exchangeable Pb concentration in soil and a 40.23% reduction in rice plants. Furthermore, Si addition boosted the plant antioxidant system by increasing the activities of related enzymes, as the activities of catalase, superoxide dismutase, and polyphenol oxidase were significantly improved while the activity of peroxidase in rice panicles decreased. As a result, an improvement in dry matter quantity by 19.19% was observed compared to treatments without Si application, and the panicle blast severity (PBS) was reduced by 0.4-37.52%. Notwithstanding the interaction between the combined stressors, this study revealed that the speciation of Pb formation in the rhizosphere was the primary contributor to the alleviation of abiotic stresses, whereas the regulation of oxidative stress by enzymatic antioxidants played a dominant role in alleviating Magnaporthe oryzae colonization and impairments. The regulation process may reveal the mechanism of siliceous fertilizer functioning in the paddy system. Thereby the role of exogenous Si in anti-fungal, heavy metal toxicology, and plant physiology needs further study to fully elucidate the role of Si amendment, which is proposed to be considered from the perspective of soil chemistry and plant physiology.
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Affiliation(s)
- Bo Tan
- State Key Laboratory of Hydraulics and Mountain River Engineering, College of Water Resource & Hydropower, Sichuan University, 610065 Chengdu, Sichuan, China
| | - Yue Zeng
- State Key Laboratory of Hydraulics and Mountain River Engineering, College of Water Resource & Hydropower, Sichuan University, 610065 Chengdu, Sichuan, China
| | - Yihan Li
- State Key Laboratory of Hydraulics and Mountain River Engineering, College of Water Resource & Hydropower, Sichuan University, 610065 Chengdu, Sichuan, China
| | - Xiao Tan
- State Key Laboratory of Hydraulics and Mountain River Engineering, College of Water Resource & Hydropower, Sichuan University, 610065 Chengdu, Sichuan, China
| | - Chao Liu
- State Key Laboratory of Hydraulics and Mountain River Engineering, College of Water Resource & Hydropower, Sichuan University, 610065 Chengdu, Sichuan, China
| | - Longguo Li
- State Key Laboratory of Hydraulics and Mountain River Engineering, College of Water Resource & Hydropower, Sichuan University, 610065 Chengdu, Sichuan, China
| | - Wenhua Zhuang
- State Key Laboratory of Hydraulics and Mountain River Engineering, College of Water Resource & Hydropower, Sichuan University, 610065 Chengdu, Sichuan, China.
| | - Zhuo Li
- Key Laboratory of Water Saving Agriculture in Hill Areas in Southern China of Sichuan Province, Crop Research Institute, Sichuan Academy of Agricultural Sciences, 610066 Chengdu, Sichuan, China
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Modabberi S, Tashakor M, Rajabian N, Khorasanipour M, Esmaeilzadeh E, Ambrosino M, Cicchella D. Characterization and chemical fractionation of potentially toxic elements in soils of a pre-mining mineralized area; an evaluation of mobility and environmental risk. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2023; 45:4795-4815. [PMID: 36941446 DOI: 10.1007/s10653-023-01537-4] [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: 08/12/2022] [Accepted: 03/08/2023] [Indexed: 05/25/2023]
Abstract
The environmental geochemical characterization of mineralized areas prior to mining does not receive adequate attention. This study shows trace element distribution in soils of two unexploited porphyry copper deposits located in Darreh-Zereshk and Ali-Abad in central Iran. The study was carried out using a compositional data analysis (CoDa) approach and combination of multivariate statistics and clustering techniques, which made it possible to identify the geochemical associations representing the different areas of the mineral deposits. The results of the chemical analyses, performed by ICP-MS, revealed high concentrations of those elements typically associated with porphyry deposits (As, Co, Cu, Mo, Ni, Pb, and Zn). The typical zonal pattern with an anomaly of Cu in central parts of the system and the prevalence of epithermal elements (Ag, Cd, Pb, and Zn) toward the peripheral propylitic alteration zone were recognized. The XRD analysis of selected soil samples allowed us to determine the distribution of elements within the different carrier minerals. Afterward, geochemical speciation patterns were investigated by a four-step sequential extraction procedure based on BCR protocol. The residual fraction consisting of primary resistant minerals was found to be the main host for As (73-93.4%), Cr (65.1-79.6%), Cu (54.3-81.4%), Ni (58.9-80.6%), V (75.9-88%), and Zn (56.5-60.5%) in the studied soils. Even though these elements are not readily leachable, their behavior and distribution could be largely affected by the mining operation and consequent changes in the physicochemical properties of the soil. The soluble-exchangeable phase was only less than 15% of the total extractions for all elements, except for Cd. With respect to the mobility factor (MF), Cd was the most mobile element followed by Sb and Pb. The measured risk assessment code (RAC) presented the following risk order: Cd > Sb > Ni > Co > Pb > Cr > As > Zn > Cu > V. This study reveals that the acquisition of pre-mining geo-environmental data of trace elements is very important to establish pre-mining backgrounds and baselines for evaluating post-mining or post-reclamation geochemical signatures.
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Affiliation(s)
- Soroush Modabberi
- School of Geology, College of Science, University of Tehran, Tehran, Iran.
| | - Mahsa Tashakor
- School of Geology, College of Science, University of Tehran, Tehran, Iran
| | - Najmeh Rajabian
- School of Geology, College of Science, University of Tehran, Tehran, Iran
| | - Mehdi Khorasanipour
- Department of Geology, Faculty of Sciences, Shahid Bahonar University of Kerman, Kerman, Iran
| | - Esmat Esmaeilzadeh
- Research and Development Division, Sarcheshmeh Copper Complex, Kerman, Iran
| | - Maurizio Ambrosino
- Department of Science and Technology, University of Sannio, 82100, Benevento, Italy
| | - Domenico Cicchella
- Department of Science and Technology, University of Sannio, 82100, Benevento, Italy
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Kanianska R, Drimal M, Varga J, Komárek M, Ahado SK, Šťastná M, Kizeková M, Jančová Ľ. Critically raw materials as potential emerging environmental contaminants, their distribution patterns, risks and behaviour in floodplain soils contaminated by heavy metals. Sci Rep 2023; 13:9597. [PMID: 37311834 DOI: 10.1038/s41598-023-36477-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Accepted: 06/04/2023] [Indexed: 06/15/2023] Open
Abstract
The expanding demand for new critical raw materials can lead to their increased release to the environment in the form of emerging environmental contaminants (EECs). However, there has never been a comprehensive study that takes into account the total EEC content, the content of various EEC fractions, their behaviour in floodplain soils, and potential ecological and human health risks. The occurrence, fractions, and influencing factors of the seven EECs (Li, Be, Sr, Ba, V, B, Se) originating from historical mining in floodplain soils of various ecosystems (arable lands, grasslands, riparian zones, contaminated sites) were investigated. Based on the evaluation of the overall levels of EECs (potentially toxic elements) in comparison to the soil guideline values set by European legislation for Be, Ba, V, B, and Se, it was found that only Be did not exceed the recommended limits. Among the elements analyzed, Li had the highest average contamination factor (CF) of 5.8, followed by Ba with 1.5 and B with 1.4. Particularly concerning was the discovery of a potential serious health risk associated with Li exposure for children, as indicated by hazard quotients ranging from 0.128 to 1.478. With the exception of Be and Se, the partitioning of the EECs into the different fractions revealed that the EECs are primarily bound with the residual fraction. Be (13.8%) had the highest percentage of exchangeable fraction as the most bioavailable in the first soil layer, followed by Sr (10.9%), Se (10.2%), Ba (10.0%), and B (2.9%). The most frequently observed correlations were between EEC fractions and pH/KCl, followed by soil organic carbon and manganese hydrous oxides. Variance analyses confirmed the impact of different ecosystems on EEC total content and fractions.
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Affiliation(s)
- Radoslava Kanianska
- Faculty of Natural Sciences, Matej Bel University Banská Bystrica, Tajovského 40, 974 01, Banská Bystrica, Slovakia.
| | - Marek Drimal
- Faculty of Natural Sciences, Matej Bel University Banská Bystrica, Tajovského 40, 974 01, Banská Bystrica, Slovakia
| | - Jozef Varga
- Faculty of Natural Sciences, Matej Bel University Banská Bystrica, Tajovského 40, 974 01, Banská Bystrica, Slovakia
| | - Michael Komárek
- Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Kamýcká 129, 165 00, Praha-Suchdol, Czech Republic
| | - Samuel Kudjo Ahado
- Faculty of Agrobiology, Food and Natrual Resources, Czech University of Life Sciences Prague, Kamýcká 129, 165 00, Praha-Suchdol, Czech Republic
| | - Milada Šťastná
- Department of Applied and Landscape Ecology, Faculty of AgriSciences, Mendel University in Brno, Zemědelská 1, 613 00, Brno, Czech Republic
| | - Miriam Kizeková
- National Agricultural and Food Centre, Research Institute of Plant Production,Grassland and Mountain Agriculture Institute, Mládežnícka 36, 974 21, Banská Bystrica, Slovakia
| | - Ľubica Jančová
- National Agricultural and Food Centre, Research Institute of Plant Production,Grassland and Mountain Agriculture Institute, Mládežnícka 36, 974 21, Banská Bystrica, Slovakia
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Huang J, Dai X, Chen X, Ali I, Chen H, Gou J, Zhuo C, Huang M, Zhu B, Tang Y, Liu J, Xu Y, Tang F, Xue J. Combined forage grass-microbial for remediation of strontium-contaminated soil. JOURNAL OF HAZARDOUS MATERIALS 2023; 450:131013. [PMID: 36863103 DOI: 10.1016/j.jhazmat.2023.131013] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 02/03/2023] [Accepted: 02/14/2023] [Indexed: 06/18/2023]
Abstract
Enrichment plants were screened from six forage grasses in this study to establish a complete combined forage grass-microbial remediation system of strontium-contaminated soil, and microbial groups were added to the screened dominant forage grasses. The occurrence states of strontium in forage grasses were explored by the BCR sequential extraction method. The results showed that the annual removal rate of Sudan grass (Sorghum sudanense (Piper) Stapf.) reached 23.05% in soil with a strontium concentration of 500 mg·kg-1. Three dominant microbial groups: E, G and H, have shown good facilitation effects in co-remediation with Sudan grass and Gaodan grass (Sorghum bicolor × sudanense), respectively. When compared to the control, the strontium accumulation of forage grasses in kg of soil with microbial groups was increased by 0.5-4 fold. The optimal forage grass-microbial combination can theoretically repair contaminated soil in three years. The microbial group E was found to promote the transfer of the exchangeable state and the reducible state of strontium to the overground part of the forage grass. Metagenomic sequencing results showed that the addition of microbial groups increased Bacillus spp. in rhizosphere soil, enhanced the disease resistance and tolerance of forage grasses, and improved the remediation ability of forage grass-microbial combinations.
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Affiliation(s)
- Jiali Huang
- College of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, Sichuan, P.R. China
| | - Xueqi Dai
- College of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, Sichuan, P.R. China
| | - Xiaoming Chen
- College of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, Sichuan, P.R. China.
| | - Imran Ali
- College of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, Sichuan, P.R. China; Institute of Molecular Biology and Biotechnology, University of Lahore, Lahore, Pakistan
| | - Hao Chen
- Sichuan Institute of Atomic Energy, Chengdu 610101, Sichuan, P.R. China
| | - Jialei Gou
- College of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, Sichuan, P.R. China
| | - Chifu Zhuo
- College of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, Sichuan, P.R. China
| | - Min Huang
- Sichuan Institute of Atomic Energy, Chengdu 610101, Sichuan, P.R. China
| | - Bo Zhu
- College of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, Sichuan, P.R. China
| | - Yunlai Tang
- College of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, Sichuan, P.R. China
| | - Jikai Liu
- College of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, Sichuan, P.R. China
| | - Yuxuan Xu
- College of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, Sichuan, P.R. China
| | - Fanzhou Tang
- College of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, Sichuan, P.R. China
| | - Jiahao Xue
- College of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, Sichuan, P.R. China
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10
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Khosravi V, Gholizadeh A, Agyeman PC, Ardejani FD, Yousefi S, Saberioon M. Further to quantification of content, can reflectance spectroscopy determine the speciation of cobalt and nickel on a mine waste dump surface? THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 872:161996. [PMID: 36775166 DOI: 10.1016/j.scitotenv.2023.161996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 01/30/2023] [Accepted: 01/30/2023] [Indexed: 06/18/2023]
Abstract
Toxic elements released due to mining activities are of the most important environmental concerns, characterised not only by their concentration, but also by their distribution among different chemical species, known as speciation. These are conventionally determined using chemical analysis and sequential extraction, which are expensive and time-demanding. In this study, the possibility of using visible-near-infrared-shortwave infrared (VNIR-SWIR) reflectance spectroscopy was investigated as an alternative technique to quantify the contents of cobalt (Co) and nickel (Ni) in soil samples collected from Sarcheshmeh copper mine waste dump surface, in Iran. As a novel approach, the capability of VNIR-SWIR spectroscopy was also investigated in speciation of those elements. Three machine learning (ML) techniques (i.e., extreme gradient boosting (EGB), random forest (RF) and support vector regression (SVR)) were used to make relationships between soil spectral responses and Co and Ni contents of the samples. For all ML algorithms, the best prediction accuracies were obtained by the models developed on the first derivative (FD) spectra (for Co: RMSEp values of 7.82, 8.03 and 9.22 mg·kg-1, and for Ni: RMSEp values of 9.88, 10.32 and 11.02 mg·kg-1, using EGB, RF and SVR, respectively). Spatial variability maps of elements showed relatively similar patterns between observed and predicted values. Correlation and ML (EGB, RF, SVR)-based methods revealed that the most important wavelengths for Co and Ni prediction were those related to iron oxides/hydroxides and clay minerals, as two main soil properties responsible for controlling their speciation. This study demonstrated that the EGB technique was successful at indirect quantification and spatial variability mapping of Co and Ni on the mine waste dump surface. In addition, it provided an inspiration for implementation of the VNIR-SWIR reflectance spectroscopy as a potentially fast and cost-effective method for speciation studies of toxic elements, especially in heterogeneous soil environments.
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Affiliation(s)
- Vahid Khosravi
- Department of Soil Science and Soil Protection, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamycka 129, Suchdol, Prague 16500, Czech Republic.
| | - Asa Gholizadeh
- Department of Soil Science and Soil Protection, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamycka 129, Suchdol, Prague 16500, Czech Republic
| | - Prince Chapman Agyeman
- Department of Soil Science and Soil Protection, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamycka 129, Suchdol, Prague 16500, Czech Republic
| | | | - Saeed Yousefi
- Department of Mining, Faculty of Engineering, University of Birjand, Birjand, Iran
| | - Mohammadmehdi Saberioon
- Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences, Section 1.4 Remote Sensing and Geoinformatics, Telegrafenberg, Potsdam 14473, Germany
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11
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Zhang Z, Deng Q, Ye H, Ge G. Bacterial and fungal diversities examined through high-throughput sequencing in response to lead contamination of tea garden soil. Front Microbiol 2023; 14:1121199. [PMID: 37032858 PMCID: PMC10073568 DOI: 10.3389/fmicb.2023.1121199] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Accepted: 03/07/2023] [Indexed: 04/11/2023] Open
Abstract
Several studies have indicated that the heavy-metal content in tea is increasing gradually. Researchers examining the soil of more than 100 tea gardens in China have observed that lead content was higher in some soils. The effect of lead contamination on soil microorganisms in tea gardens was studied to determine the effect of lead on the essential functions of microorganisms in a tea garden soil ecosystem. Previous studies on pot experiments adopted the method of adding a single instance of pollution, which failed to comprehensively simulate the characteristics of the slow accumulation of heavy metals in soil. This study designed with two pollution modes (multistage and single instance) determined the content of soil lead in different forms according to the European Community Bureau of Reference extraction procedure. The community structure, species diversity and functional abundance of soil bacteria and fungi were examined by high-throughput sequencing. We observed that the content of four forms of lead was higher in the multistage contamination mode than in the single instance contamination mode. The effects of lead contamination on bacteria differed significantly (p < 0.05), and the abundance and diversity of bacteria were higher in the multistage contamination mode than in the single instance contamination mode. The community structure of fungi was more affected by lead than was that of bacteria. The content of each lead form was the environmental factor most strongly affecting soil bacteria and fungi. The predicted main function of the bacterial community was amino acid transport and metabolism, and the trophic mode of the fungal community was mainly pathotroph-saprotroph. This study revealed changes in soil microorganisms caused by different forms of lead and contamination methods in tea garden soil and provide a theoretical basis for examining the effects of lead contamination on soil microorganisms.
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Affiliation(s)
- Ziyan Zhang
- School of Resources and Environment, Anhui Agricultural University, Hefei, China
| | - Qingmei Deng
- School of Resources and Environment, Anhui Agricultural University, Hefei, China
| | - Hui Ye
- Biotechnology Centre, Anhui Agricultural University, Hefei, China
| | - Gaofei Ge
- Biotechnology Centre, Anhui Agricultural University, Hefei, China
- *Correspondence: Gaofei Ge,
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12
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Sun SS, Ao M, Geng KR, Chen JQ, Deng THB, Li JJ, Guan ZT, Mo BL, Liu T, Yang WJ, Tang YT, Qiu RL. Enrichment and speciation of chromium during basalt weathering: Insights from variably weathered profiles in the Leizhou Peninsula, South China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 822:153304. [PMID: 35090923 DOI: 10.1016/j.scitotenv.2022.153304] [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: 10/21/2021] [Revised: 01/16/2022] [Accepted: 01/17/2022] [Indexed: 06/14/2023]
Abstract
Basalt-derived soils are widespread worldwide. Such soils contain high levels of heavy metals like chromium (Cr), which is a serious environmental concern. However, little is known regarding the enrichment and speciation of Cr during the basalt weathering process. Therefore, two basalt-derived soil profiles (Nitisol and Ferralsol) in the Leizhou Peninsula, south tropical China, were investigated to explore the redistribution and transformation of Cr during basalt weathering. All profiles could be divided into three layers: rocks, saprolites, and soils. The Nitisol and Ferralsol profiles exhibited strong (kaolinization) and extreme (laterization) degrees of weathering, respectively. Results showed that Cr concentrations in the saprolites (234 to 315 mg·kg-1) were higher than those in basalt rocks (139 to 159 mg·kg-1), indicating that Cr was enriched with the continuous loss of Si and other mobile macro-elements. While high levels of Cr were also enriched in the soils (178 to 430 mg·kg-1) accompanied with Fe. However, in the upper soils of the Ferralsol profile, the acidity and organic matter could promote the leaching of Cr. Geochemical fractions and EPMA mapping showed that chromite and olivine were the main Cr-bearing minerals in basalt, but Fe-oxides (e.g., goethite and hematite) contained the highest portion of Cr in weathered saprolites and soils. The availability of Cr in the soil was extremely low due to the high stability of Cr bound to Fe-oxides. However, the decreasing contents of Cr bound to Fe-oxides in the upper soils of the Ferralsol profile indicated that Cr could also be released during Fe leaching. In conclusion, the weathering of basalt can lead to the enrichment of Cr in Fe-(hydro)oxides, which are the main controlling minerals for Cr mobility in basalt-derived soils. Further research is needed to evaluate the effect of Fe-(hydro)oxide formation and dissolution on the release of soil Cr.
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Affiliation(s)
- Sheng-Sheng Sun
- School of Environmental Science and Engineering, Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangdong Provincial Engineering Research Center for Heavy Metal Contaminated Soil Remediation, Sun Yat-sen University, Guangzhou 510006, China
| | - Ming Ao
- School of Environmental Science and Engineering, Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangdong Provincial Engineering Research Center for Heavy Metal Contaminated Soil Remediation, Sun Yat-sen University, Guangzhou 510006, China
| | - Ke-Rui Geng
- School of Environmental Science and Engineering, Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangdong Provincial Engineering Research Center for Heavy Metal Contaminated Soil Remediation, Sun Yat-sen University, Guangzhou 510006, China
| | - Jie-Qian Chen
- School of Environmental Science and Engineering, Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangdong Provincial Engineering Research Center for Heavy Metal Contaminated Soil Remediation, Sun Yat-sen University, Guangzhou 510006, China
| | - Teng-Hao-Bo Deng
- Institute of Quality Standard and Monitoring Technology for Agro-products of Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China.
| | - Jing-Jing Li
- Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Ze-Ting Guan
- Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Bing-Lan Mo
- Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Ting Liu
- Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Wen-Jun Yang
- School of Environmental Science and Engineering, Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangdong Provincial Engineering Research Center for Heavy Metal Contaminated Soil Remediation, Sun Yat-sen University, Guangzhou 510006, China
| | - Ye-Tao Tang
- School of Environmental Science and Engineering, Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangdong Provincial Engineering Research Center for Heavy Metal Contaminated Soil Remediation, Sun Yat-sen University, Guangzhou 510006, China.
| | - Rong-Liang Qiu
- School of Environmental Science and Engineering, Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangdong Provincial Engineering Research Center for Heavy Metal Contaminated Soil Remediation, Sun Yat-sen University, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China
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13
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Partitioning and Availability of Metals from Water Suspended Sediments: Potential Pollution Risk Assessment. WATER 2022. [DOI: 10.3390/w14060980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The water management initiatives in freshwater systems focus on water availability to preserve this resource for human uses and the health of aquatic ecosystems. This work presents an assessment of the potential pollution risk caused by the metal availability in suspended sediments. The objective of this study was to determine the partitioning, association, and geochemical fractionation of metals in suspended sediments from a surface water body. Additionally, the environmental assessment for this reservoir was estimated using geoaccumulation, enrichment, and pollution indices of metals and the related potential risk by their elemental availability (RAC). Chemical, mineralogical, and morphological characterizations were obtained by inductively coupled plasma spectrometry, alpha spectroscopy, X-ray crystallography, and scanning electron microscopy. Clay, quartz, montmorillonite, and calcite were the main minerals of suspended sediments. Chemical fractionation was the parameter affecting the concentrations of metals in suspended sediments. The sediment composition is of natural origin; however, these finer particles can promote the scavenging of toxic metals. It contributes to obtaining moderate to high levels for enrichment/contamination indices. Although Ca, Mg, Sr, and U were the most accessible metals for aquatic biota, Pb and Mn in the exchangeable phase of suspended sediments are the potentially toxic elements in this aquatic ecosystem.
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14
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Floodplain soils contamination assessment using the sequential extraction method of heavy metals from past mining activities. Sci Rep 2022; 12:2927. [PMID: 35190628 PMCID: PMC8861111 DOI: 10.1038/s41598-022-06929-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Accepted: 02/03/2022] [Indexed: 12/01/2022] Open
Abstract
Floodplains are among the most precious and threatened ecosystems in the world. The study deals with floodplain soil contamination caused by 8 heavy metals (HMs) (Cd, Co, Cr, Cu, Mo, Ni, Pb, Zn) originating and transported from old mine works along the Štiavnica River in Slovakia. We determined the total HMs content and the HM fractions using BCR sequential extraction method. We selected 12 alluvial sites (AS), two contaminated sites (CS), and one reference site (RS). The sampling points were located within the riparian zones (RZ), arable lands (AL), and grasslands (GL). We confirmed soil contamination by HMs and the related ecological risk by different factors. The contamination by HMs at many AS localities was similar or even higher than at CS localities. The highest contamination factor was calculated for Cu (39.8), followed by Pb (27.4), Zn (18.2), and Cd (7.2). The HMs partitioning in the different fractions at the CS and AS localities revealed that Cd, Zn, and Pb were mainly associated with the exchangeable and reducible fractions, while Cu was mainly associated with the oxidisable fraction. The soil properties were selectively correlated with the HM fractions. Based on the ANOVA results, the effect of different ecosystem types on HM fractions was revealed.
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15
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Alan M, Kara D. Geochemical phases of soil and the bioaccessibility of some elements in soils and vegetables from boron mines. ENVIRONMENTAL MONITORING AND ASSESSMENT 2021; 193:17. [PMID: 33389185 DOI: 10.1007/s10661-020-08808-y] [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: 06/18/2020] [Accepted: 12/15/2020] [Indexed: 06/12/2023]
Abstract
The bioaccessibility of some elements (As, B, Cd, Cu, Fe, Mn, Ni and Zn) in soils and vegetables was determined using the physiologically based extraction test. An investigation of the geochemical phases of soils through sequential extraction methods followed by ICP-MS detection was also undertaken. Samples were collected from Iskele, Begendikler and Yolbasi villages in the Bigadic region and Yildiz village in the Susurluk region of Balikesir province, Turkey. All of these villages are close to boron mines. Principal component analysis and correlation analysis demonstrated the interrelationship between the bioaccessibility values of these elements in the gastric and intestinal extracts of soils as well as the plant samples grown in those soils and the elements' concentrations in the different soil fractions. From the bioaccessible concentrations of the elements in the intestinal phases, it was shown that the amounts of As, B, Cu, Mn and Ni in some plant samples were higher than the recommended and tolerable values for human consumption. The bioaccessibilty of these elements in the soils and plants were statistically related with the concentrations of these elements in the labile phases of the soil. The methodology adopted here would be applicable to determining interactions between elements and soil fractions and the interrelationships between bioaccessibility data and soil fractions for any soil samples.
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Affiliation(s)
- Mesut Alan
- Department of Chemistry, Art and Science Faculty, Balikesir University, 10100, Balikesir, Turkey
| | - Derya Kara
- Department of Chemistry, Art and Science Faculty, Balikesir University, 10100, Balikesir, Turkey.
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16
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Silva DS, Cerqueira UMFM, Aguiar RM, Carneiro PLS, Bezerra MA. Characterization, fractionation and mobility of trace elements in surface sediments of the Jequiezinho River, Bahia, Brazil. AN ACAD BRAS CIENC 2020; 92:e20190558. [PMID: 33263660 DOI: 10.1590/0001-3765202020190558] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2019] [Accepted: 10/04/2019] [Indexed: 11/22/2022] Open
Abstract
The Jequiezinho River is a temporary river. In the urban stretch it is impacted, with perennial flow coming from domestic sewage and rainwater. This study evaluated the geochemical distribution and potential mobility of some metals (Pb, Co, Ca, Cr, Mg, Cu, Fe, Mn, Ni and Zn) in sediments of the Jequiezinho River. Sediment samples were collected at ten different sites along the river. The silt/clay fraction was submitted to acid digestion and sequential extraction with analysis by FAAS. The results indicated that, in the more densely populated region, there was an increase in concentrations of Cr, Ni, Cu, Co, Pb, and Zn. The contents found were compared with the guideline values of TEL (Threshold Effect Levels) and PEL (Probable Effect Levels), not exceeding the maximum reference limits. The results indicated that Ca, Mg, Mn and Fe presented greater susceptibility to mobility and bioavailability suggesting the geochemical origin responsible for these high concentrations. The multivariate analysis showed that Cr, Ni, Cu, Co, Pb, and Zn presented a similar behavior, especially in locations with higher population density and the discharge of non-discriminated effluents, reflecting the anthropogenic contributions as responsible for the concentration increase.
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Affiliation(s)
- Darci S Silva
- Universidade Estadual do Sudoeste da Bahia, Departamento de Ciências Biológicas, Av. José Moreira Sobrinho, s/n, 45206-191 Jequié, Bahia, Brazil
| | - Uilliam M F M Cerqueira
- Universidade Estadual do Sudoeste da Bahia, Departamento de Ciências e Tecnologia, Av. José Moreira Sobrinho, s/n, 45206-191 Jequié, Bahia, Brazil
| | - Rosane M Aguiar
- Universidade Estadual do Sudoeste da Bahia, Departamento de Ciências e Tecnologia, Av. José Moreira Sobrinho, s/n, 45206-191 Jequié, Bahia, Brazil
| | - Paulo Luis S Carneiro
- Universidade Estadual do Sudoeste da Bahia, Departamento de Ciências Biológicas, Av. José Moreira Sobrinho, s/n, 45206-191 Jequié, Bahia, Brazil
| | - Marcos A Bezerra
- Universidade Estadual do Sudoeste da Bahia, Departamento de Ciências e Tecnologia, Av. José Moreira Sobrinho, s/n, 45206-191 Jequié, Bahia, Brazil
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17
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Barcelos DA, Pontes FVM, da Silva FANG, Castro DC, Dos Anjos NOA, Castilhos ZC. Gold mining tailing: Environmental availability of metals and human health risk assessment. JOURNAL OF HAZARDOUS MATERIALS 2020; 397:122721. [PMID: 32473498 DOI: 10.1016/j.jhazmat.2020.122721] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Revised: 03/29/2020] [Accepted: 04/10/2020] [Indexed: 06/11/2023]
Abstract
The gold ore from sulfide minerals is, in general, ore dressed by means of nine stages among which stand out flotation and cyanidation. The residues of these steps, containing potentially toxic elements, such as As, Cd, Cr, Mn, Zn and Pb disposed of tailings dams, which might be a source of environmental contamination if not suitably disposed and/or in cases of accidents and overflows. Sequential extraction schemes (SES) have been used to estimate the potential environmental availability of contaminants from environmental matrices and, lately, from residues. This research evaluates the environmental availability of As, Cr, Cd, Mn, Pb, and Zn, by using two different SES, Tessier and Marin (BCR) in cyanidation residues. The analytes were quantified by inductively coupled plasma with optical emission spectrometry (ICP OES). A human health risk assessment was performed considering a scenario of soil contamination by the tailing after failure dam, based on the potential environment availability of metals, resulted from distinct SES studied. The results showed that Mn and Pb are the most labile, and therefore the most dangerous and bioavailable for the surrounding environment (≥75%). Moreover, the scenario simulated demonstrated the risk for human health mostly due to As, Cd and Zn.
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Affiliation(s)
- Daniel A Barcelos
- Chemistry Institute, Federal University of Rio de Janeiro (IQ/UFRJ), Avenue Athos da Silveira Ramos, nº 149, Block A, 7th floor, Technology Center, University City, Rio de Janeiro, RJ, (CEP): 21941-909, Brazil.
| | - Fernanda V M Pontes
- Chemistry Institute, Federal University of Rio de Janeiro (IQ/UFRJ), Avenue Athos da Silveira Ramos, nº 149, Block A, 7th floor, Technology Center, University City, Rio de Janeiro, RJ, (CEP): 21941-909, Brazil
| | - Fernanda A N G da Silva
- Chemistry Institute, Federal University of Rio de Janeiro (IQ/UFRJ), Avenue Athos da Silveira Ramos, nº 149, Block A, 7th floor, Technology Center, University City, Rio de Janeiro, RJ, (CEP): 21941-909, Brazil
| | - Danielle C Castro
- Chemistry Institute, Federal University of Rio de Janeiro (IQ/UFRJ), Avenue Athos da Silveira Ramos, nº 149, Block A, 7th floor, Technology Center, University City, Rio de Janeiro, RJ, (CEP): 21941-909, Brazil
| | - Nathalia O A Dos Anjos
- Chemistry Institute, Federal University of Rio de Janeiro (IQ/UFRJ), Avenue Athos da Silveira Ramos, nº 149, Block A, 7th floor, Technology Center, University City, Rio de Janeiro, RJ, (CEP): 21941-909, Brazil
| | - Zuleica C Castilhos
- Center of Mineral Technology (CETEM), Avenue Pedro Calmon, 900 - University City, Rio de Janeiro, RJ, (CEP): 21941-908, Brazil
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18
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An improved microwave assisted sequential extraction method followed by spectrometric analysis for metal distribution determination in South African coal samples. Sci Rep 2020; 10:14841. [PMID: 32908187 PMCID: PMC7481181 DOI: 10.1038/s41598-020-71963-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Accepted: 08/24/2020] [Indexed: 11/30/2022] Open
Abstract
Some metal pollutants are corrosive in nature, are associated with fouling and slagging challenges of the coal boilers, are highly volatile and might cause air pollution and are catalyst poisoners during Fischer–Tropsch catalytic reaction. Therefore, this work describes an improved microwave-assisted sequential extraction (MW-ASE) method followed by ICP-OES/MS analysis for metal distribution determination in South African coal samples. The multivariate optimum conditions for each sequential step were 0.1 g, 200 °C and 5 min for sample amount, microwave temperature and extraction time, respectively. Under the optimum conditions, Ga, Sr and Ba were the only metals that showed solubility towards water, therefore, these metals are classified as highly mobile and eco-toxic under wet environmental conditions. Additionally, all the investigated metals showed solubility towards acidic conditions (HCl and HNO3). These results suggest that, most metal ions are predominantly bonded to sulphate, sulphide, and carbonate coal minerals. Alternatively, Ce, Cr and Y showed total extraction recoveries of ≤ 90%, confirming their strong affinity towards quartz coal minerals. In overall, the proposed MW-ASE method reported short extraction time (0.34 h), environmentally friendly reagents (H2O and diluted H2O2) and rapid multivariate optimization with acceptable extraction efficiencies (79–98%) and reproducibility (RSD ≤ 5%).
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19
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Wang J, Jiang Y, Sun J, She J, Yin M, Fang F, Xiao T, Song G, Liu J. Geochemical transfer of cadmium in river sediments near a lead-zinc smelter. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 196:110529. [PMID: 32247240 DOI: 10.1016/j.ecoenv.2020.110529] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 03/18/2020] [Accepted: 03/20/2020] [Indexed: 06/11/2023]
Abstract
Cadmium (Cd) is a highly toxic element and non-essential to human. Herein, the source and fate of Cd were examined in a typical sediment profile from the North River, South China, which was affected by the massive Pb-Zn smelting activities for decades. An exceptionally high enrichment of Cd, 107-441 mg/kg, was observed across the whole profile. Approximately 50-75% of Cd was retained in the weak acid soluble fraction. Risk assessment based on geoaccumulation index (Igeo), potential ecological risk index (Eri), bioavailable metal index (BMI) and toxic risk index (TRI) further indicated an extremely strong degree of potential ecological pollution and high toxic risks. The mineralogical composition of particles from the sediment profile exhibited the presence of pyrite, magnetite, wurtzite and greenockite. This further confirmed that Cd was migrated from smelting slags to the North River basin and enriched in sediment profile. Sediment Cd speciation analysis also implied a possible transformation of Cd from metal oxides in smelting slags to adsorbed phases and carbonates, which enhances the bioavailability of Cd. The findings indicate proper countermeasures or remediation approaches should be promptly taken towards high ecological risks of Cd arising from the depth profile extending nearly 1 m, due to lead-zinc smelting related activities.
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Affiliation(s)
- Jin Wang
- Key Laboratory of Water Quality and Conservation in the Pearl River Delta, Ministry of Education, Institute of Environmental Research at Greater Bay, School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources, Guangzhou, 510006, China
| | - Yanjun Jiang
- Key Laboratory of Water Quality and Conservation in the Pearl River Delta, Ministry of Education, Institute of Environmental Research at Greater Bay, School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, China
| | - Jing Sun
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, China
| | - Jingye She
- Key Laboratory of Water Quality and Conservation in the Pearl River Delta, Ministry of Education, Institute of Environmental Research at Greater Bay, School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, China
| | - Meiling Yin
- Key Laboratory of Water Quality and Conservation in the Pearl River Delta, Ministry of Education, Institute of Environmental Research at Greater Bay, School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, China
| | - Fa Fang
- Key Laboratory of Water Quality and Conservation in the Pearl River Delta, Ministry of Education, Institute of Environmental Research at Greater Bay, School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, China
| | - Tangfu Xiao
- Key Laboratory of Water Quality and Conservation in the Pearl River Delta, Ministry of Education, Institute of Environmental Research at Greater Bay, School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, China
| | - Gang Song
- Key Laboratory of Water Quality and Conservation in the Pearl River Delta, Ministry of Education, Institute of Environmental Research at Greater Bay, School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources, Guangzhou, 510006, China
| | - Juan Liu
- Key Laboratory of Water Quality and Conservation in the Pearl River Delta, Ministry of Education, Institute of Environmental Research at Greater Bay, School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, China.
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Pu S, Yan C, Huang H, Liu S, Deng D. Toxicity of nano-CuO particles to maize and microbial community largely depends on its bioavailable fractions. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 255:113248. [PMID: 31561034 DOI: 10.1016/j.envpol.2019.113248] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2019] [Revised: 08/30/2019] [Accepted: 09/12/2019] [Indexed: 06/10/2023]
Abstract
The environmental consequences of nano-CuO particles have gained significant attention in recent decades. Identification of the mechanisms for soil and plant responses with respect to the chemical speciation of nano-CuO (mainly the exchangeable and reducible fractions) remains scarce. Here, we analyzed different chemical speciation of Cu and DTPA-extractable Cu over 42 days in (1) control soil without Cu addition; (2) soil treated with nano-CuO particles; and (3) soil treated with CuSO4 solution. The applied dose was 500 mg Cu kg-1 and maize was grown in these soils. Plant growth was inhibited, but the inhibition by nano-CuO was slightly weaker compared to CuSO4. Cu accumulations were similar in the roots for CuSO4 and nano-CuO treatments, but significantly higher in the shoots for CuSO4 treatment. This indicates that Cu from nano-CuO-treated soils mainly accumulated in roots but rarely transferred to shoots. Enzyme activities on the rhizoplane visualized by zymography were strongly depressed by CuSO4 but slightly inhibited by nano-CuO. Microbial community diversity measured by 16S rRNA was the lowest in CuSO4-treated soils among three treatments. These results were explained by the following mechanisms: (1) Gradual increases of DTPA-extractable and exchangeable Cu were found in nano-CuO-treated soil, and the final concentrations at day 42 were only half of those in CuSO4-treated soil; (2) Enzyme activities on the rhizoplane were positively related to soil pH and negatively correlated with DTPA-extractable and exchangeable Cu; (3) Even though reducible Cu in nano-CuO-treated soils was 1.3 times higher than in CuSO4-treated soils, indicating stronger nano-accrued oxidative stress in nano-CuO-treated soils, the toxicity induced by nano-CuO particles was still weaker than CuSO4. Nevertheless, the toxicity of Cu particles to plants and microbes mainly depends on the gradually-released bioavailable Cu. This demonstrates the greater importance of bioavailable Cu concentrations for toxicity modulation rather than the scale of Cu particles.
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Affiliation(s)
- Shengyan Pu
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection (Chengdu University of Technology), 1# Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, P.R. China; State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, P.R. China.
| | - Chun Yan
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection (Chengdu University of Technology), 1# Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, P.R. China
| | - Hongyan Huang
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection (Chengdu University of Technology), 1# Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, P.R. China
| | - Shibin Liu
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection (Chengdu University of Technology), 1# Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, P.R. China; College of Earth Sciences, Chengdu University of Technology, 1# Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, P.R. China.
| | - Daili Deng
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection (Chengdu University of Technology), 1# Dongsanlu, Erxianqiao, Chengdu 610059, Sichuan, P.R. China
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Assessment of sequential extraction methods for the prediction of bioavailability of elements in plants grown on agricultural soils near to boron mines in Turkey. Talanta 2019; 200:41-50. [DOI: 10.1016/j.talanta.2019.03.031] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Revised: 03/03/2019] [Accepted: 03/05/2019] [Indexed: 11/23/2022]
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