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Long HY, Feng GF, Fang J. In-situ remediation of cadmium contamination in paddy fields: from rhizosphere soil to rice kernel. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2024; 46:404. [PMID: 39207539 DOI: 10.1007/s10653-024-02099-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2024] [Accepted: 06/24/2024] [Indexed: 09/04/2024]
Abstract
Cadmium (Cd) has become an important heavy metal pollutant because of its strong migration and high toxicity. The industrial production process aggravated the Cd pollution in rice fields. Human exposure to Cd through rice can cause kidney damage, emphysema, and various cardiovascular and metabolic diseases, posing a grave threat to health. As modern technology develops, the Cd accumulation model in rice and in-situ remediation of Cd pollution in cornfields have been extensively studied and applied, so it is necessary to sort out and summarize them systematically. Therefore, this paper reviewed the primary in-situ methods for addressing heavy metal contamination in rice paddies, including chemical remediation (inorganic-organic fertilizer remediation, nanomaterials, and composite remediation), biological remediation (phytoremediation and microbial remediation), and crop management remediation technologies. The factors that affect Cd transformation in soil and Cd migration in crops, the advantages and disadvantages of remediation techniques, remediation mechanisms, and the long-term stability of remediation were discussed. The shortcomings and future research directions of in situ remediation strategies for heavily polluted paddy fields and genetic improvement strategies for low-cadmium rice varieties were critically proposed. To sum up, this review aims to enhance understanding and serve as a reference for the appropriate selection and advancement of remediation technologies for rice fields contaminated with heavy metals.
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Affiliation(s)
- Hai Yan Long
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, 410128, China
| | - Guang Fu Feng
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, 410128, China.
| | - Jun Fang
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, 410128, China.
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2
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Dovletyarova EA, Slukovskaya MV, Ivanova TK, Mosendz IA, Novikov AI, Chaporgina AA, Soshina AS, Myazin VA, Korneykova MV, Ettler V, Yáñez C, Neaman A. Sensitivity of microbial bioindicators in assessing metal immobilization success in smelter-impacted soils. CHEMOSPHERE 2024; 359:142296. [PMID: 38729440 DOI: 10.1016/j.chemosphere.2024.142296] [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: 01/26/2024] [Revised: 05/06/2024] [Accepted: 05/08/2024] [Indexed: 05/12/2024]
Abstract
While plant toxicity reduction remains the primary metric for judging the success of metal immobilization in soil, the suitability of microorganisms as universal indicators of its effectiveness in various contaminated soils remains a point of contention. This study assessed the sensitivity of microbial bioindicators in monitoring metal immobilization success in smelter-impacted soils. It compared plants and microorganisms as indicators of the efficiency of natural Fe-Mn nodules from the Gulf of Finland in immobilizing metals in soils contaminated by a Ni/Cu smelter, on the Kola Peninsula, Murmansk region, Russia. Perennial ryegrass (Lolium perenne) was grown on nodule-amended and control soils. Plant responses in the smelter-impacted soils proved to be sensitive and robust indicators of successful metal immobilization. However, microbial responses exhibited a more complex story. Despite the observed reductions in soluble metal concentrations, shoot metal contents in ryegrass, and significant improvements in plant growth, certain microbial bioindicators were unresponsive to metal immobilization success brought about by the addition of Fe-Mn nodules. Among microbial bioindicators studied, community-level physiological profiling, microbial biomass carbon, and basal respiration were sensitive indicators of metal immobilization success, whereas the number of saprotrophic, oligotrophic, and Fe-oxidizing bacteria and fungi, the biomass of bacteria and fungi, and enzymatic activity were less robust indicators. Interestingly, the correlations between different microbial responses measured were weak or even negative. Some microbial responses also exhibited negative correlations with plant biomass. These findings underscore the need for further research on comparative evaluations of plants and microorganisms as reliable indicators of metal immobilization efficacy in polluted environments.
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Affiliation(s)
- Elvira A Dovletyarova
- Department of Landscape Design and Sustainable Ecosystems, Peoples Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya St., Moscow, 117198, Russian Federation
| | | | - Tatiana K Ivanova
- Kola Science Centre, Russian Academy of Sciences, Apatity, Russian Federation
| | - Irina A Mosendz
- Kola Science Centre, Russian Academy of Sciences, Apatity, Russian Federation
| | - Andrey I Novikov
- Kola Science Centre, Russian Academy of Sciences, Apatity, Russian Federation
| | | | | | - Vladimir A Myazin
- Kola Science Centre, Russian Academy of Sciences, Apatity, Russian Federation
| | - Maria V Korneykova
- Kola Science Centre, Russian Academy of Sciences, Apatity, Russian Federation
| | - Vojtěch Ettler
- Institute of Geochemistry, Mineralogy and Mineral Resources, Faculty of Science, Charles University, Prague, Czech Republic
| | - Carolina Yáñez
- Instituto de Biología, Pontificia Universidad Católica de Valparaíso, Valparaíso, Chile.
| | - Alexander Neaman
- Departamento de Recursos Ambientales, Facultad de Ciencias Agronómicas, Universidad de Tarapacá, Arica, Chile.
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3
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Papadimou SG, Golia EE. Green and sustainable practices for an energy plant cultivation on naturally contaminated versus spiked soils. The impact of ageing soil pollution in the circular economy framework. ENVIRONMENTAL RESEARCH 2024; 246:118130. [PMID: 38191042 DOI: 10.1016/j.envres.2024.118130] [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: 11/13/2023] [Revised: 12/30/2023] [Accepted: 01/05/2024] [Indexed: 01/10/2024]
Abstract
Silybum marianum L. Gaertn. or milk thistle is an energy-produced weed that has been shown to be tolerant of heavy metal-contaminated soils. In the present study, its cultivation was studied in soils laboratory-spiked (artificial) with Cu and Zn solutions. Meanwhile, plant growing on naturally contaminated soils of Mediterranean regions, both urban and rural, was investigated. The metal concentrations spiked in artificial polluted soils were estimated to be roughly equivalent to those in naturally contaminated soils. Plants grown in artificially contaminated soils incorporated the metal added to the soils more rapidly and in higher proportions. The contamination of soil samples was carried out using different chemical reagents, salts containing the metals with oxidation number II, highlighting the fact that the reagent containing the metal is crucial regarding artificial soil pollution. Statistically significant differences were observed between the individual pollution patterns, as far as plant metals uptake concern. It was also found that the aged, contaminated soils transfer lower levels of metals to the plants. Therefore, aging or weathering of contamination alters toxicity levels in the soil environment by determining transport and uptake into the soil-to-plant system. Eventually, from the present research, it emerged the fact that in urban soils that have aged perennial pollution, the uptake of metals by plants is probably lower than in rural ones. Furthermore, with proper management, it is possible to grow plants, with low nutrient requirements, in urban soils by adopting smart, green and eco-friendly techniques, enhancing sustainable cultivation in the framework of circular economy.
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Affiliation(s)
- Sotiria G Papadimou
- Aristotle University of Thessaloniki, Laboratory of Soil Science, School of Agriculture, 541 24, Thessaloniki, Greece; University of Thessaly, Department of Agriculture, Rural Environment and Crop Production, Fytokou Street, Volos, 384 46, Magnesia, Greece.
| | - Evangelia E Golia
- Aristotle University of Thessaloniki, Laboratory of Soil Science, School of Agriculture, 541 24, Thessaloniki, Greece.
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Dovletyarova EA, Zhikharev AP, Polyakov DG, Karpukhin MM, Buzin IS, Yáñez C, Neaman A. Extremely High Soil Copper Content, yet Low Phytotoxicity: A Unique Case of Monometallic Soil Pollution at Kargaly, Russia. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2023; 42:707-713. [PMID: 36647739 DOI: 10.1002/etc.5562] [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: 12/07/2022] [Revised: 12/20/2022] [Accepted: 01/09/2023] [Indexed: 06/17/2023]
Abstract
Ecotoxicological studies on soil metal toxicity often rely on artificially contaminated soils. A major difficulty in using soils contaminated by anthropogenic activities (e.g., mining and agriculture) is the presence of multiple metals, which can make it impossible to distinguish the toxic effects of a particular metal. Therefore, sites with monometallic pollution have great potential for ecotoxicological research. One such site is an agricultural field in Kargaly, Orenburg region, Russia, where copper mining and smelting activities were carried out during the 18th-20th centuries. Samples of Mollisols (chernozems) were collected in the studied field. At several sampling points there were copper ore rocks on the surface, containing malachite (CuCO3 · Cu(OH)2 ). The soil samples had a high copper content, up to approximately 10 g kg-1 , compared with 75 mg kg-1 in the background soil. Importantly, the content of other elements in all soil samples was similar to that in the background soil, highlighting the uniqueness of the monometallic contamination in the study area. Despite the extremely high total copper content, exchangeable copper was relatively low, with a maximum of approximately 0.5 mg kg-1 . We performed a short-term (21-day) ecotoxicity assessment using perennial ryegrass as an indicator of copper toxicity. Contrary to expectations, plant growth was not affected by the high copper content in the studied soils. The low copper phytotoxicity may be explained by the low solubility of malachite. However, future long-term experiments may be warranted to determine copper toxicity thresholds for plants under field conditions. The site discovered in the present study could potentially acquire the same significance as the Danish Hygum site for the study of monometallic soil contamination. Environ Toxicol Chem 2023;42:707-713. © 2023 SETAC.
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Affiliation(s)
- Elvira A Dovletyarova
- Department of Landscape Design and Sustainable Ecosystems, Peoples Friendship University of Russia (RUDN University), Moscow, Russia
| | - Alexander P Zhikharev
- Department of Landscape Design and Sustainable Ecosystems, Peoples Friendship University of Russia (RUDN University), Moscow, Russia
| | - Dmitry G Polyakov
- Institute of Steppe, Ural Branch of the Russian Academy of Sciences, Orenburg, Russia
| | | | - Igor S Buzin
- MSU Lab, Lomonosov Moscow State University, Moscow, Russia
| | - Carolina Yáñez
- Instituto de Biología, Pontificia Universidad Católica de Valparaíso, Valparaíso, Chile
| | - Alexander Neaman
- Departamento de Recursos Ambientales, Facultad de Ciencias Agronómicas, Universidad de Tarapacá, Arica, Chile
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5
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Santa-Cruz J, Robinson B, Krutyakov YA, Shapoval OA, Peñaloza P, Yáñez C, Neaman A. An Assessment of the Feasibility of Phytoextraction for the Stripping of Bioavailable Metals from Contaminated Soils. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2023; 42:558-565. [PMID: 36582151 DOI: 10.1002/etc.5554] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 07/19/2022] [Accepted: 12/20/2022] [Indexed: 06/17/2023]
Abstract
Phytoextraction has been proposed in many papers as a low-cost method for remediating contaminated soil. However, if national regulation is based on total metal(loid) concentrations in soil, phytoextraction is generally infeasible because of the long time required for remediation. Assessing phytoextraction requires determination of the dynamic rate of metal removal from soil. Phytoextraction may be feasible if the main goal is to reduce the soluble fraction of the metal(loid) with the goal of reducing bioavailability. However, it has been reported that there is a large mass balance mismatch between the reduction of the soluble metal fraction in contaminated soil and metal uptake by plants. Several studies report that the decrease of soluble fraction of metals in soil is higher than can be accounted for by plant uptake. In other words, studies generally overestimate the feasibility of bioavailable contaminant stripping. Therefore, a more rigorous approach is advisable to ensure that papers on bioavailable contaminant stripping include relevant information on mass balances. Furthermore, to implement the concept of bioavailable contaminant stripping, regulations must distinguish between the bioavailable fraction and the total metal concentration in soil. Environ Toxicol Chem 2023;42:558-565. © 2022 SETAC.
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Affiliation(s)
- Javier Santa-Cruz
- Escuela de Ciencias Agrícolas y Veterinarias, Universidad Viña del Mar, Viña del Mar, Chile
| | - Brett Robinson
- School of Physical and Chemical Sciences, University of Canterbury, Christchurch, New Zealand
| | - Yurii A Krutyakov
- Department of Chemistry, Laboratory of Functional Materials for Agriculture, Lomonosov Moscow State University, Moscow, Russian Federation
| | - Olga A Shapoval
- Pryanishnikov All-Russian Scientific Research Institute of Agrochemistry, Moscow, Russian Federation
| | - Patricia Peñaloza
- Escuela de Agronomía, Pontificia Universidad Católica de Valparaíso, Quillota, Chile
| | - Carolina Yáñez
- Instituto de Biología, Pontificia Universidad Católica de Valparaíso, Valparaíso, Chile
| | - Alexander Neaman
- Departamento de Recursos Ambientales, Facultad de Ciencias Agronómicas, Universidad de Tarapacá, Arica, Chile
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Yáñez C, Verdejo J, Moya H, Donoso P, Rojas C, Dovletyarova EA, Shapoval OA, Krutyakov YA, Neaman A. Microbial responses are unreliable indicators of copper ecotoxicity in soils contaminated by mining activities. CHEMOSPHERE 2022; 300:134517. [PMID: 35398065 DOI: 10.1016/j.chemosphere.2022.134517] [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: 11/28/2021] [Revised: 03/13/2022] [Accepted: 04/02/2022] [Indexed: 06/14/2023]
Abstract
Metal contamination of soil has become a serious environmental problem worldwide. Many studies have attempted to infer metal ecotoxicity from soil microbial responses. However, much of the data from these studies tends to be inconsistent and difficult to interpret. We hypothesized that microbial response would be a useful indicator of metal toxicity in soils contaminated by copper mining in Chile. Eighty-four topsoils (0-20 cm) were collected from three areas historically contaminated by copper mining (total Cu: 46-1106 mg kg-1, soluble Cu: 0.05-2.3 mg kg-1, pCu2+: 6.3-10, pH: 5.1-7.8, organic matter: 1.1-10%, clay: 0-28%). Based on soil metal concentrations and ecotoxicity thresholds, Cu was expected to be toxic to microorganisms in the studied soils, while the effects of other metals (total Zn: 79-672, As: 1.9-60, Pb: 19-220, Cd: 0.4-5.1 mg kg-1) were expected to be minor. Soil microbial responses (microbial biomass and numbers, nitrogen mineralization and nitrification, and community-level physiological profiles) were also measured. The results showed that the different responses of soil microbes were not correlated with each other. Furthermore, the soil microbial responses were mainly influenced by the physicochemical properties of the soil, not by the metal concentrations in the soil. The effect of copper on the microbial response was either stimulating (positive) or toxic (negative). Of the soil microbial responses measured in this study, only the microbial biomass was useful for calculating dose-response curves. However, the microbial biomass response was not consistent among the different soil copper pools (total copper, soluble copper, and activity of free Cu2+ ions). It is important to emphasize that the thresholds obtained for copper toxicity cannot be adopted in a robust manner because of the different microbial responses in different sampling areas. Thus, in the copper-contaminated soils under study, microbial response was found to be an unreliable indicator of metal toxicity.
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Affiliation(s)
- Carolina Yáñez
- Instituto de Biología, Pontificia Universidad Católica de Valparaíso, Valparaíso, Chile.
| | - José Verdejo
- Centro Transdisciplinario de Estudios Ambientales y Desarrollo Humano Sostenible (CEAM), Universidad Austral de Chile, Valdivia, Chile
| | - Héctor Moya
- Department of Civil Engineering, University of Siegen, Siegen, Germany
| | - Pamela Donoso
- Instituto de Biología, Pontificia Universidad Católica de Valparaíso, Valparaíso, Chile
| | - Constanza Rojas
- Instituto de Biología, Pontificia Universidad Católica de Valparaíso, Valparaíso, Chile
| | - Elvira A Dovletyarova
- Department of Landscape Design and Sustainable Ecosystems, Peoples Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya St., Moscow, 117198, Russian Federation
| | - Olga A Shapoval
- Pryanishnikov All-Russian Scientific Research Institute of Agrochemistry, Moscow, Russian Federation
| | - Yurii A Krutyakov
- Department of Chemistry, Lomonosov Moscow State University, Moscow, Russian Federation
| | - Alexander Neaman
- Centro Transdisciplinario de Estudios Ambientales y Desarrollo Humano Sostenible (CEAM), Universidad Austral de Chile, Valdivia, Chile; Laboratory of Bioresource Potential of Coastal Area, Institute for Advanced Studies, Sevastopol State University, Crimea, Russian Federation.
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Tapia-Gatica J, Selles I, Bravo MA, Tessini C, Barros-Parada W, Novoselov A, Neaman A. Global issues in setting legal limits on soil metal contamination: A case study of Chile. CHEMOSPHERE 2022; 290:133404. [PMID: 34953874 DOI: 10.1016/j.chemosphere.2021.133404] [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: 11/09/2021] [Revised: 12/19/2021] [Accepted: 12/21/2021] [Indexed: 06/14/2023]
Abstract
The establishment of legal limits for soil contamination with trace elements is a global issue that has not yet been resolved. However, the resolution of any global problem begins at the national level. In this vein, we present the case of Chile, the world's leading copper producer, where soil contamination by trace elements in mining areas has been severe. We evaluated the magnitude of the ecological and human health risks from exposure to arsenic (As), copper (Cu), zinc (Zn), and lead (Pb) in soils of the La Ligua and Petorca basins, two important mining areas in Chile. Contrary to what might be expected in soils affected by Cu mining activities, As was identified as the most hazardous element in the studied soils, both in terms of ecological and human health risks. On the other hand, Chile does not currently have specific legislation establishing legal limits on soil contamination with trace elements. Since Chile is geochemically similar to New Zealand, Mexico, and Italy, we used the limits of these three countries as benchmarks. We determined the background concentrations of As, Cu, Zn, and Pb in the soils of the two river basins under study and found that they tend to exceed the limits established by foreign laws. We also found that the differences in background elemental concentrations in the studied soils were primarily due to the varied lithology of soil-forming rocks. This means that absolute "one-limit-fits-all" values of element concentrations may not be adequate to regulate the level of soil contamination in areas affected by mining. As a fundamental first step, it is necessary to establish background soil concentrations of trace elements in each river basin in Chile. It is clear that Chile urgently needs to move from rubber-stamping foreign laws to the development of national legislation on soil metal contamination.
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Affiliation(s)
- Jaime Tapia-Gatica
- Escuela de Agronomía, Pontificia Universidad Católica de Valparaíso, Quillota, Chile; Doctorado en Ciencias Agroalimentarias, Facultad de Ciencias Agronómicas y de los Alimentos, Pontificia Universidad Católica de Valparaíso, Quillota, Chile
| | - Iván Selles
- Center of Applied Ecology and Sustainability (CAPES), Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Manuel A Bravo
- Laboratorio de Química Analítica y Ambiental, Pontificia Universidad Católica de Valparaíso, Valparaíso, Chile
| | - Catherine Tessini
- Laboratorio de Análisis Químico e Instrumental, Departamento de Química, Universidad Técnica Federico Santa María, Valparaíso, Chile
| | - Wilson Barros-Parada
- Escuela de Agronomía, Pontificia Universidad Católica de Valparaíso, Quillota, Chile.
| | - Alexey Novoselov
- Instituto de Geología Económica Aplicada, Universidad de Concepción, Concepción, Chile
| | - Alexander Neaman
- Instituto de Ingeniería Agraria y Suelos, Facultad de Ciencias Agrarias y Alimentarias, Universidad Austral de Chile, Valdivia, Chile.
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Santa-Cruz J, Vasenev II, Gaete H, Peñaloza P, Krutyakov YA, Neaman A. Metal Ecotoxicity Studies with Artificially Contaminated versus Anthropogenically Contaminated Soils: Literature Review, Methodological Pitfalls and Research Priorities. RUSS J ECOL+ 2021. [DOI: 10.1134/s1067413621060126] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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9
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Deng J, Li B, Zhang S, Li Z, Zu Y, He Y, Chen J, Li T. Plant Species Diversity of Plant Communities and Heavy Metal Accumulation in Buffer Zone of Momianhe Stream Along a Long-Term Mine Wastes Area, China. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2021; 107:1136-1142. [PMID: 34132816 DOI: 10.1007/s00128-021-03296-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Accepted: 06/09/2021] [Indexed: 06/12/2023]
Abstract
The species composition of eight shrub communities were investigated in order to understand the species diversity of plant communities in buffer zone and wetland of Momianhe stream along a long-term mine waste area, Lanping county, Yunnan province, China. Dominant plant species and soil samples were collected to analysis heavy metal (Cu, Zn, Pb and Cd) accumulation characteristics. The results showed that 100% samples for Zn, Pb, Cd, and 87.5% samples for Cu in the investigated area exceeded the Yunnan geochemical background value of the heavy metals in the soil. There were 36 plants species in communities, among which Epilobium pyrricholophum, Elsholtzia argyi, Artemisia vestita, Tripogon chinensis were the dominant species. Plant species, the number of individuals, Ecological Dominance (Do), Shannon-Wiener index (H'), Simpson diversity index (Dsi) and Pielou evenness index (Epi) were affected by Cd and Cu contents of the soil and sediment. Therefore, the results indicate that Cu and Cd contents and ecological risk in the process of long-term vegetation restoration of small catchment in lead-zinc mine waste area should pay more attention.
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Affiliation(s)
- Jiangdi Deng
- College of Resources and Environment, Yunnan Agricultural University, Kunming, 650201, China
| | - Bo Li
- College of Resources and Environment, Yunnan Agricultural University, Kunming, 650201, China
| | - Shan Zhang
- College of Resources and Environment, Yunnan Agricultural University, Kunming, 650201, China
| | - Zuran Li
- College of Horticulture and Landscape, Yunnan Agriculture University, Kunming, China.
| | - Yanqun Zu
- College of Resources and Environment, Yunnan Agricultural University, Kunming, 650201, China.
| | - Yongmei He
- College of Resources and Environment, Yunnan Agricultural University, Kunming, 650201, China
| | - Jianjun Chen
- College of Resources and Environment, Yunnan Agricultural University, Kunming, 650201, China
| | - Tianguo Li
- College of Resources and Environment, Yunnan Agricultural University, Kunming, 650201, China
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10
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Dubrovina TA, Losev AA, Karpukhin MM, Vorobeichik EL, Dovletyarova EA, Brykov VA, Brykova RA, Ginocchio R, Yáñez C, Neaman A. Gypsum soil amendment in metal-polluted soils-an added environmental hazard. CHEMOSPHERE 2021; 281:130889. [PMID: 34289602 DOI: 10.1016/j.chemosphere.2021.130889] [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: 03/18/2021] [Revised: 05/01/2021] [Accepted: 05/10/2021] [Indexed: 06/13/2023]
Abstract
Scientists around the world have long been searching for effective strategies to reduce the bioavailability of metals in contaminated soils. In case of metal-spiked soils, some studies have proposed gypsum as a soil amendment to alleviate metal phytotoxicity. However, for real field-collected soils, evidence on the efficacy of gypsum as a metal phytotoxicity amendment is limited. Therefore, the present study was designed to examine the effect of gypsum on plant growth in soils polluted by a copper smelter. We grew perennial ryegrass on untreated and gypsum-treated soils (at a dose of 3% by weight) under laboratory conditions. We found that gypsum had no effect on alleviating metal phytotoxicity in our soils. We also demonstrated - for the first time - that gypsum increased the concentrations of soluble metals in the soil, enhancing metal uptake by plants. The calcium ions from gypsum displace metals in the soil exchangeable complex; however, the metals do not get immobilized in soils because gypsum is a neutral salt. While our results contrast with the Terrestrial Biotic Ligand Model, that Model has never been tested on real industrially polluted soils but only on metal-spiked soils. Our main conclusion is that gypsum is ineffective in alleviating metal phytotoxicity in real industrially polluted soils and, moreover, its use is inappropriate as a soil remediation method, because it increases the environmental hazard rather than reducing it. Our study is the very first attempt to recognize that gypsum is a hazardous material when used to ameliorate soils polluted by metals.
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Affiliation(s)
- Tatiana A Dubrovina
- Department of Landscape Design and Sustainable Ecosystems, Peoples Friendship University of Russia (RUDN University), Moscow, Russia
| | - Artem A Losev
- Department of Landscape Design and Sustainable Ecosystems, Peoples Friendship University of Russia (RUDN University), Moscow, Russia
| | | | - Evgenii L Vorobeichik
- Institute of Plant and Animal Ecology, Ural Branch of the Russian Academy of Sciences, Ekaterinburg, Russia
| | - Elvira A Dovletyarova
- Department of Landscape Design and Sustainable Ecosystems, Peoples Friendship University of Russia (RUDN University), Moscow, Russia
| | - Vasyl A Brykov
- Institute of Botany, National Academy of Sciences of Ukraine, Kiev, Ukraine
| | - Ramilla A Brykova
- Department of Landscape Design and Sustainable Ecosystems, Peoples Friendship University of Russia (RUDN University), Moscow, Russia
| | - Rosanna Ginocchio
- Center of Applied Ecology and Sustainability (CAPES), Pontificia Universidad Católica de Chile, Santiago, Chile; Facultad de Agronomía e Ingeniería Forestal, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Carolina Yáñez
- Instituto de Biología, Pontificia Universidad Católica de Valparaíso, Valparaíso, Chile
| | - Alexander Neaman
- Instituto de Ingeniería Agraria y Suelos, Facultad de Ciencias Agrarias y Alimentarias, Universidad Austral de Chile, Valdivia, Chile.
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11
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Kolbas A, Herzig R, Marchand L, Maalouf JP, Kolbas N, Mench M. Field evaluation of one Cu-resistant somaclonal variant and two clones of tobacco for copper phytoextraction at a wood preservation site. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:27831-27848. [PMID: 32399870 DOI: 10.1007/s11356-020-09151-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Accepted: 05/04/2020] [Indexed: 06/11/2023]
Abstract
A Cu-resistant somaclonal tobacco variant (NBCu 10-8-F1, C1), its BaG mother clone (C3), and the FoP tobacco clone (C2) were cultivated at a wood preservation site on Cu-contaminated soils (239-1290 mg Cu kg-1 soil range) and an uncontaminated control site (CTRL, 21 mg Cu kg-1) to assess their shoot DW yields and potential use for bioavailable Cu stripping. The Cu concentration in the soil pore water varied between 0.15 and 0.84 mg L-1. Influences of Cu exposure and soil treatments, i.e., untreated soil (Unt), soils amended with compost and either dolomitic limestone (OMDL) or zerovalent iron grit (OMZ), on plant growth and shoot ionome were determined. All transplants survived and grew even at high total soil Cu. Shoots were harvested after 3 months (cut 1). Subsequently, bottom suckers developed and were harvested after 2 months (cut 2). Total shoot DW yield (cuts 1 + 2) varied between 0.8 and 9.9 t DW ha-1 year-1 depending on tobacco cultivars, soil treatments, and soil Cu exposure. It peaked for all cultivars in the OMDL plots at moderate Cu exposure (239-518 mg kg-1 soil), notably for the C2 plants. Cut 2 contributed for 11-43% to total shoot DW yield. Increase in shoot DW yield diluted shoot Cu concentration. At low Cu exposure, total shoot Cu removal peaked for the variant. At moderate Cu exposure, shoot Cu concentrations were similar in all cultivars, but total shoot Cu removal was highest for the C2 plants. At high Cu exposure (753-1140 mg kg-1), shoot Cu concentrations peaked for the C2 plants in the Unt plots, the C1 and C2 plants in the OMZ plot, and the C3 ones in the OMDL plots. Shoot Cu removal (in g Cu ha-1 year-1) ranged from 15.4 (C2 on the CTRL soil) to 261.3 (C2 on moderately contaminated OMDL soils). The C2 plants phytoextracted more Cu than the C1 and C3 ones in the Unt plots and in the OMDL plots at moderate Cu exposure. In the OMDL plots with high Cu exposure, shoot Cu removal was highest for the C1 plants. Soil amendments improved shoot Cu removal through increase in either shoot DW yield (OMDL-3-fold) or shoot Cu concentration (OMZ-1.3-fold). Increased shoot Cu concentration induced an ionome imbalance with increased shoot Al, Fe, B, and Mg concentrations and decreased P and K ones. Copper concentrations in plant parts varied in decreasing order: roots > leaves > inflorescence (cymes including seeds) > stem, whereas Cu removal ranked as roots > stem = leaves > inflorescence.
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Affiliation(s)
- Aliaksandr Kolbas
- Univ. Bordeaux, INRAE, BIOGECO, 33615, Pessac, France
- Brest State University named after A.S. Pushkin, Boulevard of Cosmonauts 21, 224016, Brest, Belarus
| | - Rolf Herzig
- Phytotech Foundation, Quartiergasse, 12, 3013, Bern, Switzerland
| | | | | | - Natallia Kolbas
- Brest State University named after A.S. Pushkin, Boulevard of Cosmonauts 21, 224016, Brest, Belarus
| | - Michel Mench
- Univ. Bordeaux, INRAE, BIOGECO, 33615, Pessac, France.
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Neaman A, Robinson B, Minkina TM, Vidal K, Mench M, Krutyakov YA, Shapoval OA. Feasibility of Metal(loid) Phytoextraction from Polluted Soils: The Need for Greater Scrutiny. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2020; 39:1469-1471. [PMID: 32474968 DOI: 10.1002/etc.4787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 05/25/2020] [Accepted: 05/26/2020] [Indexed: 06/11/2023]
Affiliation(s)
- Alexander Neaman
- Instituto de Ingeniería Agraria y Suelos, Facultad de Ciencias Agrarias y Alimentarias, Universidad Austral de Chile, Valdivia, Chile
| | - Brett Robinson
- School of Physical and Chemical Sciences, University of Canterbury, Christchurch, New Zealand
| | - Tatiana M Minkina
- Academy of Biology and Biotechnology, Southern Federal University, Rostov-on-Don, Russian Federation
| | - Kooichi Vidal
- Escuela de Agronomía, Pontificia Universidad Católica de Valparaíso, Quillota, Chile
| | - Michel Mench
- University of Bordeaux, INRAE, BIOGECO, Pessac, France
| | - Yurii A Krutyakov
- National Research Center Kurchatov Institute, Moscow, Russia
- Department of Chemistry, Lomonosov Moscow State University, Moscow, Russia
| | - Olga A Shapoval
- Pryanishnikov All-Russian Scientific Research Institute of Agrochemistry, Moscow, Russia
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13
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Neaman A, Valenzuela P, Tapia-Gatica J, Selles I, Novoselov AA, Dovletyarova EA, Yáñez C, Krutyakov YA, Stuckey JW. Chilean regulations on metal-polluted soils: The need to advance from adapting foreign laws towards developing sovereign legislation. ENVIRONMENTAL RESEARCH 2020; 185:109429. [PMID: 32244109 DOI: 10.1016/j.envres.2020.109429] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 03/21/2020] [Accepted: 03/22/2020] [Indexed: 06/11/2023]
Abstract
Chile as a major international Cu producer faces serious soil contamination issues in mining areas. Currently Chile does not have any specific law governing the maximum permissible concentrations of metals in soils to protect ecosystems and human health. Chile heavily relies on the use of environmental laws of 14 foreign countries; the choice of the country depends on the similarity of its environmental conditions with those in Chile. In this study, we used an online database to compare the similarity of Chilean rocks to those in foreign countries. Likewise, we performed soil sampling and determined the background concentrations of Cu, As, Pb, and Zn in soils of the Aconcagua basin, the largest river basin in the Valparaiso Region of central Chile. The results showed that geochemical patterns in Chile have the greatest resemblance to New Zealand, Mexico, and Italy. The background Cu concentration in the Aconcagua basin (134 mg kg-1) exceeded the legislated limits of New Zealand (100 mg kg-1) and Italy (120 mg kg-1), whereas the background Zn concentration (200 mg kg-1) exceeded the legislated limit of Italy (150 mg kg-1). Due to the elevated natural abundance of Cu and Zn in Chile, international laws should not be applied in Chile for the assessment of soil contamination. In addition, we assessed ecological risk using the results of our previous studies obtained by analyzing native field-contaminated soils of the Valparaiso region. In the Aconcagua basin, Cu posed high risk for plants in 11% of the samples, whereas As posed high risk for earthworms in 48% of the samples. We suggest that future studies are required to search for other organisms that can serve as biomarkers of metal toxicity because our previous studies were limited to plants and earthworms. Importantly, As posed high risk to human health in 25% of the samples in our study. There is a need for future studies to demonstrate empirically an association between soil As and children's blood As in order to establish the national threshold values of soil As to protect human health. We conclude that there is an urgent need in Chile to advance from the current approach of adapting foreign laws to developing Chilean sovereign environmental legislation.
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Affiliation(s)
- Alexander Neaman
- Escuela de Ciencias Agrícolas y Veterinarias, Universidad Viña del Mar, Viña del Mar, Chile.
| | - Patricio Valenzuela
- Departamento de Sistemas y Recursos Naturales, Universidad Politécnica de Madrid, Madrid, Spain
| | - Jaime Tapia-Gatica
- Doctorado en Ciencias Agroalimentarias, Pontificia Universidad Católica de Valparaíso, Quillota, Chile
| | - Iván Selles
- Center of Applied Ecology and Sustainability (CAPES), Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Alexey A Novoselov
- Instituto de Geología Económica Aplicada, Universidad de Concepción, Concepción, Chile
| | - Elvira A Dovletyarova
- Department of Landscape Design and Sustainable Ecosystems, RUDN University, Moscow, Russia
| | - Carolina Yáñez
- Instituto de Biología, Pontificia Universidad Católica de Valparaíso, Valparaíso, Chile.
| | - Yurii A Krutyakov
- National Research Center Kurchatov Institute, Moscow, Russia; Department of Chemistry, Lomonosov Moscow State University, Moscow, Russia
| | - Jason W Stuckey
- Biology Department and Environmental Science Program, Multnomah University, Portland, OR, USA
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14
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Tapia-Gatica J, González-Miranda I, Salgado E, Bravo MA, Tessini C, Dovletyarova EA, Paltseva AA, Neaman A. Advanced determination of the spatial gradient of human health risk and ecological risk from exposure to As, Cu, Pb, and Zn in soils near the Ventanas Industrial Complex (Puchuncaví, Chile). ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 258:113488. [PMID: 31859123 DOI: 10.1016/j.envpol.2019.113488] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Revised: 10/17/2019] [Accepted: 10/23/2019] [Indexed: 06/10/2023]
Abstract
The townships of Puchuncaví and Quintero, on the coast of central Chile, have soils contaminated by atmospheric deposition of sulfur dioxide and trace elements from the nearby Ventanas Industrial Complex. The purpose of this study was to evaluate potential human health and ecological risks, by determining the spatial distribution of soil total concentrations arsenic (As), copper (Cu), lead (Pb), and zinc (Zn) in these townships. Total concentrations of these elements were determined in 245 topsoil samples, used to generate continuous distribution maps. The background concentrations of Cu, As, Pb, and Zn in the studied soils were 100, 16, 35, and 122 mg kg-1, respectively. The concentrations of Cu, As, and Pb were positively correlated with each other, suggesting that their source is the Ventanas copper smelter. On the other hand, correlations for Zn were weaker than for other trace elements, suggesting low impact of the Ventanas copper smelter on spatial distribution of Zn. Indeed, only 6% of the study area exhibited Zn concentrations above the background level. In contrast, 77, 32 and 35% of the study area presented Cu, As, and Pb concentrations, respectively, above the background level. The carcinogenic risk due to exposure to As was above the threshold value of 10-04 in the population of young children (1-5 years old) on 27% of the study area. These risk values are classified as unacceptable, which require specific intervention by the Chilean government. Based on the estimated concentrations of exchangeable Cu, 10, 15, and 75% of the study area exhibited high, medium, and low phytotoxicity risk, respectively.
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Affiliation(s)
- Jaime Tapia-Gatica
- Escuela de Agronomía, Pontificia Universidad Católica de Valparaíso, Quillota, Chile
| | | | - Eduardo Salgado
- Escuela de Agronomía, Pontificia Universidad Católica de Valparaíso, Quillota, Chile
| | - Manuel A Bravo
- Laboratorio de Química Analítica y Ambiental, Pontificia Universidad Católica de Valparaíso, Valparaíso, Chile
| | - Catherine Tessini
- Laboratorio de Análisis Químico e Instrumental, Departamento de Química, Universidad Técnica Federico Santa María, Valparaíso, Chile
| | - Elvira A Dovletyarova
- Department of Landscape Design and Sustainable Ecosystems, RUDN University, Moscow, Russia
| | - Anna A Paltseva
- PhD Program in Earth and Environmental Sciences, Graduate Center of The City University of New York, New York, USA
| | - Alexander Neaman
- Escuela de Agronomía, Pontificia Universidad Católica de Valparaíso, Quillota, Chile.
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15
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Neaman A, Selles I, Martínez CE, Dovletyarova EA. Analyzing Soil Metal Toxicity: Spiked or Field-Contaminated Soils? ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2020; 39:513-514. [PMID: 32101340 DOI: 10.1002/etc.4654] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 12/12/2019] [Accepted: 12/23/2019] [Indexed: 06/10/2023]
Affiliation(s)
- Alexander Neaman
- Escuela de Agronomía, Pontificia Universidad Católica de Valparaíso, Quillota, Chile
| | - Iván Selles
- Escuela de Agronomía, Pontificia Universidad Católica de Valparaíso, Quillota, Chile
| | | | - Elvira A Dovletyarova
- Department of Landscape Design and Sustainable Ecosystems, RUDN University, Moscow, Russia
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