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Assessment of heavy metals in soils of a vineyard region with the use of principal component analysis Scientia Agricola
Valladares,Gustavo Souza; Camargo,Otávio Antônio de; Carvalho,José Ruy Porto de; Silva,Alessandra Maria Cia.
Agricultural management with chemicals may contaminate the soil with heavy metals. The objective of this study was to apply Principal Component Analysis and geoprocessing techniques to identify the origin of the metals Cu, Fe, Mn, Zn, Ni, Pb, Cr and Cd as potential contaminants of agricultural soils. The study was developed in an area of vineyard cultivation in the State of São Paulo, Brazil. Soil samples were collected and GPS located under different uses and coverings. The metal concentrations in the soils were determined using the DTPA method. The Cu and Zn content was considered high in most of the samples, and was larger in the areas cultivated with vineyards that had been under the application of fungicides for several decades. The concentrations of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: PCA; GIS; Soil pollution; Copper; Zinc.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162009000300011
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Background and Reference Values of Metals in Soils from Paraíba State, Brazil Rev. Bras. Ciênc. Solo
Almeida Júnior,Agenor Bezerra de; Nascimento,Clístenes Williams Araújo do; Biondi,Caroline Miranda; Souza,Adailson Pereira de; Barros,Felipe Martins do Rêgo.
ABSTRACT Soil contamination by heavy metals threatens ecosystems and human health. Environmental monitoring bodies need reference values for these contaminants to assess the impacts of anthropogenic activities on soil contamination. Quality reference values (QRVs) reflect the natural concentrations of heavy metals in soils without anthropic interference and must be regionally established. The aim of this study was to determine the natural concentrations and quality reference values for the metals Ag, Ba, Cd, Co, Cu, Cr, Mo, Ni, Pb, Sb and Zn in soils of Paraíba state, Brazil. Soil samples were collected from 94 locations across the state in areas of native vegetation or with minimal anthropic interference. The quality reference values (QRVs) were (mg...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Geochemistry; Soil pollution; Micronutrients; Trace elements.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832016000100509
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Cadmium availability and accumulation by lettuce and rice Rev. Bras. Ciênc. Solo
Pereira,Bruno Fernando Faria; Rozane,Danilo Eduardo; Araújo,Suzana Romeiro; Barth,Gabriel; Queiroz,Rafaela Josemara Barbosa; Nogueira,Thiago Assis Rodrigues; Moraes,Milton Ferreira; Cabral,Cleusa Pereira; Boaretto,Antonio Enedi; Malavolta,Eurípedes.
Among the toxic elements, Cd has received considerable attention in view of its association with a number of human health problems. The objectives of this study were to evaluate the Cd availability and accumulation in soil, transfer rate and toxicity in lettuce and rice plants grown in a Cd-contaminated Typic Hapludox. Two simultaneous greenhouse experiments with lettuce and rice test plants were conducted in a randomized complete block design with four replications. The treatments consisted of four Cd rates (CdCl2), 0.0; 1.3; 3.0 and 6.0 mg kg-1, based on the guidelines recommended by the Environmental Agency of the State of São Paulo, Brazil (Cetesb). Higher Cd rates increased extractable Cd (using Mehlich-3, Mehlich-1 and DTPA chemical extractants) and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Lactuca sativa L.; Oryza sativa L.; Soil pollution; Chemical extractants; Heavy metals; Human health.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832011000200033
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Chelating agents to solubilize heavy metals from Oxisols contaminated by the addition of organic and inorganic residues Scientia Agricola
Coscione,Aline Renée; Abreu,Cleide Aparecida de; Santos,Gláucia Cecília Gabrielli dos.
Phytoremediation is an attractive technique for soils contaminated with heavy metals, especially in conjunction with chelating agents to assist metal phytoextraction. Nevertheless, their studies in Brazil are rare. Thus, the objective of the present work was to evaluate the efficiency of the chelating agents EDDS and EDTA for the solubilization of heavy metals from two Oxisols contaminated by organic sources in Jaguariúna (LVJ) and inorganic sources in Paulínia (LVP), São Paulo State, Southeastern Brazil. First, the soil samples were fractionated and the DTPA method was used to quantify heavy metals available forms. The results indicated that the metals were highly available in the soil fractions and could be solubilized by the chelating agents. The soil...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Soil pollution; Chelating agents; Tropical soils; Fractionation.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162009000100009
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Chemical attributes of a Hapludox soil after nine years of pig slurry application PAB
Veiga,Milton da; Pandolfo,Carla Maria; Balbinot Junior,Alvadi Antonio; Spagnollo,Evandro.
The objective of this study was to evaluate the pig slurry application effects on chemical attributes of a Hapludox soil managed under no-tillage system. Treatments consisted of 50, 100 and 200 m³ ha-1 per year of pig slurry application, and a control with replacement of P and K exported through harvested grains. Attributes related to soil chemical reaction, exchange complex, and nutrient contents were determined in soil samples collected in the ninth year of experimentation from 0 - 0.025, 0.025 - 0.05, 0.05 - 0.10, 0.10 - 0.20, 0.20 - 0.40 and 0.40 - 0.60 m soil depths. The continuous application of high doses of pig slurry on the Oxisol surface under no-tillage acidifies the soil and increases Al, P, Cu, and Zn contents down to 0.2-m depth, and K levels...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Acidification; Micronutrients; No-tillage system; Soil fertility; Soil pollution; Soil quality.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2012001200013
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Comparison of digestion methods to determine heavy metals in fertilizers Rev. Bras. Ciênc. Solo
Silva,Ygor Jacques Agra Bezerra da; Nascimento,Clístenes Williams Araújo do; Biondi,Caroline Miranda; Preston,Welka.
The lack of a standard method to regulate heavy metal determination in Brazilian fertilizers and the subsequent use of several digestion methods have produced variations in the results, hampering interpretation. Thus, the aim of this study was to compare the effectiveness of three digestion methods for determination of metals such as Cd, Ni, Pb, and Cr in fertilizers. Samples of 45 fertilizers marketed in northeastern Brazil were used. A fertilizer sample with heavy metal contents certified by the US National Institute of Standards and Technology (NIST) was used as control. The following fertilizers were tested: rock phosphate; organo-mineral fertilizer with rock phosphate; single superphosphate; triple superphosphate; mixed N-P-K fertilizer; and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Soil contamination; Soil pollution; Chemical extraction.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832014000200029
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Cupriavidus necator strains: zinc and cadmium tolerance and bioaccumulation Scientia Agricola
Ferreira,Paulo Ademar Avelar; Bomfeti,Cleide Aparecida; Soares,Cláudio Roberto Fonsêca de Souza; Soares,Bruno Lima; Moreira,Fatima Maria de Souza.
ABSTRACT: Among soil microorganisms, the genus Cupriavidus has garnered particular scientific, economic and ecological interest because of its ability to fix nitrogen and tolerate high concentrations of metals. The aim of this study was to analyze four strains of Cupriavidus necator for their ability to tolerate and bioaccumulate cadmium and zinc. The tolerance of these strains to these metals was assessed in liquid culture medium containing different concentrations of Zn + Cd and in soil solutions and soils contaminated with multiple elements including Zn, Cd, Cu and Pb. The four strains showed high tolerance to Zn and Cd, both in culture medium and when inoculated into contaminated soil solutions or multi-element contaminated soil. The UFLA02-71 strain...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Β-proteobacteria; Bioremediation; Heavy-metal; Soil pollution.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162018000600452
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Differential behavior of the summer cover crops in the absorption and translocation of copper Ciência Rural
Vendruscolo,Diogo; Santana,Natielo Almeida; Souto,Kelen Müller; Ferreira,Paulo Ademar Avelar; Melo,George Wellington Bastos de; Jacques,Rodrigo Josemar Seminoti.
ABSTRACT: Phytoremediation is an alternative technique used to treat copper-contaminated soils. The objective of this research was to explore the behavior of nine summer cover crops regarding the growth, absorption and translocation of copper in soils with contamination levels exceeding the Value of Prevention, with a view to selecting plants for phytoremediation programs. In the experiments the Cambisol was contaminated with copper, added in doses of 0, 100, 200, 400, 500 and 600mg kg-1, in which the following nine plants were cultivated under greenhouse conditions: Canavalia ensiformis, Cajanus cajan, Dolichos lablad, Mucuna cinereum, Mucuna aterrima, Crotalaria juncea, Crotalaria spectabilis, Pennisetum glaucum and Paspalum notatum. At 90 days after...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Heavy metal; Soil pollution; Phytoremediation; Phytostabilization; Phytoextraction.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018001200251
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Distribution of cadmium in a cultivated soil in Britanny, France Scientia Agricola
Hadlich,Gisele Mara; Ucha,José Martin.
Cadmium (Cd) can be potentially toxic to the environment, and its bioavailability is related to the chemical forms it occurs in the soils. The distribution of Cd into the solid phase and its availability was investigated in a cultivated soil in Britanny, France. Cd sequential extraction was performed using a modified Tessier's sequential extraction protocol. Total content of Cd (n = 22 samples) ranged from 0.13 to 0.37 mg kg¹. Long term history of organic and mineral fertilizers application increased Cd concentration in the surface horizon. The fate of Cd was correlated with soil available P2O5 concentration and pH. The regression analysis (linear and non-linear) and Principal Component Analysis revealed the synergistic effect of P2O5 in the retention of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cd; Soil pollution; Tessier protocol; Sequencial extraction.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162010000600017
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Fitorremediação de metais pesados em solo induzido por agente quelante utilizando o capim vetiver. Infoteca-e
TAVARES, S. R. de L.; OLIVEIRA, S. A. de.
O tratamento de áreas contaminadas é conhecido por remediação e pode envolver medidas para eliminar, imobilizar ou reduzir o contaminante para níveis aceitáveis e previamente definidos. Uma das tecnologias de remediação de solos e águas contaminadas utiliza plantas e seus microorganismos associados e é, por isso, denominada de fitorremediação. Este boletim teve por objetivo principal verificar o potencial da utilização da técnica de fitorremediação de metais pesados para a descontaminação de solo e água em níveis compatíveis com as legislações brasileiras, avaliando o desempenho do capim vetiver (Vetiveria zizanioides (L.) Nash) em solo contaminado com diferentes doses de metais pesados, na presença e na ausência do agente quelante (EDTA). O experimento...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E) Palavras-chave: Capim Vetiver; Fitorremediação de metal; Agente quelante; Planta fitoextratora; Solo; Poluição do Solo; Metal Pesado; Heavy metals; Soil pollution; Phytoremediation.
Ano: 2012 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/950813
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Heavy metals availability and soil fertility after land application of sewage sludge on dystroferric Red Latosol Ciência e Agrotecnologia
Moreira,Rodrigo Santos; Mincato,Ronaldo Luiz; Santos,Breno Régis.
Sewage sludge is the solid residue obtained from urban sewage treatment plants. It is possible to use the sludge in a sustainable way as fertilizer and as soil conditioner due to its high levels of organic matter and nutrients. Besides pathogens and volatile organic compounds, the residue may also contain heavy metals which may accumulate and contaminate crops and the food chain. The aim of this study was evaluates the changes in the fertility of dystrophic Red Latosol and in the availability of heavy metals following application of sewage sludge. It was assessed whether organic matter supplied to the soil as large amounts of sewage sludge would decrease availability of heavy metals in the soil due to of insoluble compounds formation. From this, an...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Biosolids; Soil pollution; Nutrients; Lactuca sativa.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542013000600004
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Lead concentration and allocation in vegetable crops grown in a soil contaminated by battery residues Horticultura Brasileira
Lima,Francisco de S; Nascimento,Clístenes WA do; Silva,Fernando BV da; Carvalho,Vinícius GB de; Ribeiro Filho,Mateus R.
Lead (Pb) is a very stable metal in soil and is highly toxic to humans and animals. Exposure to Pb occurs via inhalation of particles from industry and soil, as well as household dust, water, and contaminated food. A greenhouse experiment was carried out to evaluate Pb contents and allocation in vegetable crops grown in a soil contaminated by battery recycling wastes. Eight plant species were studied: tomato, sweet pepper, beet, carrot, cabbage, green collards, eggplant, and okra. The experiment was set up in blocks at random with four replicates. The results showed that carrot, green collards, beet, and okra were the most Pb tolerant species, while the others were very Pb-sensitive, since they did not complete their cycle. The decreasing order for Pb...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Battery recycling; Soil pollution; Soil contamination; Heavy metals.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362009000300019
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Nickel adsorption and desorption in an acric oxisol as a function of pH, ionic strength and incubation time Ciência e Agrotecnologia
Mellis,Estêvão Vicari; Casagrande,José Carlos; Soares,Marcio Roberto.
ABSTRACT Although nickel (Ni) has both important potential benefits and toxic effects in the environment, its behavior in tropical soils has not been well studied. Nickel adsorption-desorption in topsoil and subsoil samples of an acric Oxisol was studied at three pH values (from 3.0 to 8.0). Adsorption-desorption isotherms were elaborated from experiments with increasing Ni concentration (5 to 100 mg L-1), during 0, 4, and 12 weeks, using CaCl2 0.01 and 0.1 M as electrolytic support in order to also verify the effect of Ni-soil time contact and of ionic strength on the reaction. Experimental results of Ni adsorption fitted Langmuir model, which indicated that maximum Ni adsorption (71,440 mg kg-1) occurred at subsoil, after 12 weeks. Nickel affinity (KL)...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Sorption; Bioavailability; Soil pollution; Heavy metal..
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542017000100032
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Nutrients And Heavy Metals In Maize, Fertilized With Rock Phosphate And Biosolid Engenharia na Agricultura
Rodrigues, Marcio Neves; Sampaio, Regynaldo Arruda; Zuba Junio, Geraldo Ribeiro; Oliveira, Agda Loureiro Gonçalves.
This study aimed to evaluate effects of rock phosphate and sewage sludge compound fertilization in level of contents of heavy metals and nutrients in two consecutive cultivation of corn grain. The project was conducted in an Haplic Cambisol on a period of days between April 10, 2009 and September 15, 2010. The treatments in factorial scale 2 by 4 meters corresponds to application on the first corn cultivation of 2 doses of rock gafsa phosphate (0 and 90 kg ha-1 of P2O5) and 4 compound doses of sewage sludge (0; 25; 50 and 75 t ha-1, in dry specimen). The experiment followed random blocks design with three treatments repetition. The fertilization with rock phosphate increased the levels of N, P, K and Mg only in the first corn grain cultivation and did not...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Organic fertilizer; Sewage sludge; Soil pollution.
Ano: 2017 URL: http://www.seer.ufv.br/seer/index.php/reveng/article/view/685
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Nutrients behavior from the association pig slurry and chemical fertilizers on soybean crop BABT
Smanhotto,Adriana; Sampaio,Silvio César; Bosco,Tatiane Cristina Dal; Prior,Maritane; Soncela,Rosimaldo.
This study aimed at evaluating the effects of pig slurry application with mineral fertilizer on ions leaching from the soil in soybean crop. The experiment was carried out in 24 drainage lysimeters under protection. The soybean cultivar CD 202/COODETEC was sown in a soil that received 0, 100, 200 and 300 m³ha-1of pig slurry in one cycle, with or without mineral fertilizer. There were three samplings of soil throughout the trial to determine the pH, N, NO3-, K+, Ca2+, Mg2+, Na+, Cu+2, Zn+2, OM, CEC, EC and SAR six times during the crop cycle. The yield was determined in the plants. In soil, pig slurry increased the concentrations of pH, NO3-, K+, Zn+2, OM and CEC, while mineral fertilizer increased P and Zn+2concentrations. The limits observed for the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Organic fertilization; Soil pollution; Environment contamination; Soybean culture.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132013000500003
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Organic acids effects on desorption of heavy metals from a contaminated soil Scientia Agricola
Nascimento,Clístenes Williams Araújo do.
Phytoremediation of heavy metals is a biotechnology that extracts metals from soils and transfer them to plant. As hyperaccumulator species have demonstrated low potential for commercial phytoextraction, synthetic chelates have been successfully used to induce accumulation of metals by high-biomass plants. However, they pose serious environmental drawbacks regarding excessive amount of metals solubilized. In search for synthetic chelate-alternatives, this paper evaluate the performance of DTPA, EDTA, citric acid, oxalic acid, vanillic acid, and gallic acid in desorbing Cd, Pb, Zn, Cu, and Ni from soil. DTPA and EDTA were highly effective in desorbing Cd, Pb, Zn, Cu, and Ni from soil. However, the excessively high concentration of metals brought in solution...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Phytoremediation; Phytoextraction; Soil pollution.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162006000300010
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Phytoextraction and fractionation of heavy metals in soil after multiple applications of natural chelants Scientia Agricola
Melo,Évio Eduardo Chaves de; Nascimento,Clístenes Williams Araújo do; Accioly,Adriana Maria de Aguiar; Santos,Ana Cristiane Queiroz.
Chelate-assisted phytoextraction of heavy metals is a promising approach to clean up polluted soils. However, the most successful chelants tested so far are synthetic agents that barely degrade in soil, increasing the metal leaching risks. Natural organic acids have been proposed to enhance phytoextraction due to their higher biodegradability, but they can also be a drawback for efficient phytoextraction. This work was carried out to compare the effectiveness of multiple applications of citric and gallic acids on the availability in soil and accumulation of Cd, Pb, Cu, and Zn by velvet bean (Stizolobium aterrimum) plants. The organic acids were added as follows: 5 mmol kg-1 in the 28th cultivation day; two doses of 5 mmol kg-1 at the 28th and 31st day; and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Phytoremediation; Soil pollution; Soil remediation; Organic acids.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162008000100009
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Phytoextractor Potential of Cultivated Species in Industrial Area Contaminated by Lead Rev. Bras. Ciênc. Solo
Nascimento,Silvânia Maria de Souza Gomes; Souza,Adailson Pereira de; Lima,Vera Lúcia Antunes de; Nascimento,Clístenes Williams Araújo do; Nascimento,Joab Josemar Vitor Ribeiro do.
ABSTRACT: High growth rate is one of the criteria used for the selection of species to be used in metal phytoextraction programs. This study was carried out to characterize the growth characteristics of sunflower (Helianthus annuus L.), castor bean (Ricinus communis L.), corn (Zea mays L), and vetiver [Vetiveria zizanioides (L.) Nash] grown on a soil contaminated with lead (Pb), with and without pH correction, to improve agronomic practices regarding phytoremediation programs. The experiment was designed as a randomized block with four replications; treatments were arranged in a split-plot arrangement, with the main plot representing the species (sunflower, castor bean, corn, and vetiver), with or without pH correction and soil fertilization, and the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Phytoremediation; Soil pollution; Heavy metal; Biological indicator.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832016000100547
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Phytoremediation of lead by jack beans on a Rhodic Hapludox amended with EDTA Scientia Agricola
Pereira,Bruno Fernando Faria; Abreu,Cleide Aparecida de; Herpin,Uwe; Abreu,Mônica Ferreira de; Berton,Ronaldo Severiano.
A greenhouse study was conducted to evaluate the effects of ethylenediamine tetraacetic acid (EDTA) addition to soils on the lead (Pb) phytoextraction potential of jack beans (Canavalia ensiformis L.). In a pot experimentSoil samples (dystrophic Rhodic Hapludox) were treated with six Pb rates (0, 100, 200, 350, 1,200, and 2,400 mg kg-1 soil) applied as Pb(NO3)2 without and with EDTA application (0 and 0.5 g kg-1, respectively). Lead, Cl-, NO3-, NH4+, SO4(2-), H2PO4-, Zn2+, Cu2+, Fe3+, Al3+, Ca2+, Mg2+, K+ and DOC (dissolved organic carbon) concentrations obtained in a saturation soil extract (soil:water ratio of 1:0.3) were used for Pb speciation by means of the software Visual-Minteq 2.30. Soil Pb-availability was assessed with Diethylene triamine...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Ionic speciation; Phytoextraction; Soil pollution; Soil solution; Chelate.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162010000300009
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Potentiality of Melastoma malabathricum as Phytoremediators of soil contaminated with sewage sludge Scientia Agricola
Patek-Mohd,Nur-Nazirah; Abdu,Arifin; Jusop,Shamshuddin; Abdul-Hamid,Hazandy; Karim,Md. Rezaul; Nazrin,Mohammad; Akbar,Mohd-Hadi; Jamaluddin,Aiza Shaliha.
ABSTRACT: Heavy metal pollution of the soil environment has become a major source of concern and continues to pose serious health problems to both humans and ecological systems worldwide. Phytoremediation is a biological treatment whereby plants are used to remove pollutant from the environment. An experiment was conducted to evaluate the potential of Melastoma malabathricum as a phytoremediator to absorb heavy metals from soil contaminated with sewage sludge. Melastoma malabathricum seedlings were planted on six different growth media: T0 - Control (100 % soil), T1 (80 % soil + 20 % sewage sludge), T2 (60 % soil + 40 % sewage sludge), T3 (40 % soil + 60 % sewage sludge), T4 (20 % soil + 80 % sewage sludge) and T5 (100 % sludge). There were differences...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Soil pollution; Phytoremediation; Translocation factor; Bioconcentration factor.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162018000100027
Registros recuperados: 24
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