Consulta: subjectFacets:"Soil contamination"
Registros recuperados: 17
Data/hora: 02/06/2024 11:26:42

Lead concentration and allocation in vegetable crops grown in a soil contaminated by battery residues
Provedor de dados: 75
Autores: 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

Efeito do rejeito de mineração de níquel na germinação e crescimento de stylosanthes guianensis (aubl.) Sw. (Leguminosae) (2009).
Provedor de dados: 14
Autores: FREIRE, I. de S.; AGEADO, J. C.; MORAES, A. S.; ARAGÃO, T. P.; MUNIZ, D. H. de F.; MALAQUIAS, J. V.; SILVA, J. C. S.; ANDRADE, L. R. M. de; OLIVEIRA-FILHO, E. C. de; AQUINO, F. de G.
bitstream/item/78160/1/p2009-048.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Recuperação ambiental; Forrageira; Forages; Nickel mining waste; Soil contamination; Growth; Environmental regeneration.; Environmental degradation; Germination.
Ano: 2009
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/737091

Estudo do mecanismo de hiperacumulação de níquel em plantas nativas do Cerrado (2009).
Provedor de dados: 14
Autores: PAES LEME, V. B.; CORDEIRO, M. C. R.; NAGATA, T.; OLIVEIRA-FILHO, E. C. de; AQUINO, F. de G.; MIRANDA, Z. de J. G.; FRAGOSO, R. da R.; SILVA, M. S.; BARROS, L. M. G.; ALMEIDA, J.; ANDRADE, L. R. M. de.
bitstream/item/78169/1/p2009-056.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Planta nativa; Indigenuous organisms; Nickel mining waste; Soil contamination; Growth; Environmental regeneration.; Cerrado; Metal Pesado; Níquel.; Environmental degradation.
Ano: 2009
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/737103

Trace elements in inorganic fertilizers: health risk assessment.
Provedor de dados: 14
Autores: MARCHI, G.; GUILHERME, L. R. G.
bitstream/item/78303/1/p2009-094.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Contaminação do solo; Soil contamination; Segurança Alimentar; Fertilizers; Food security.
Ano: 2009
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/748253

Biodiversity of Collembola in urban soils and their use as bioindicators for pollution
Provedor de dados: 86
Autores: Fiera,Cristina.
The objective of this work was to evaluate the effects of pollutants on the abundance and diversity of Collembola in urban soils. The research was carried out in three parks (Cişmigiu, Izvor and Unirea) in downtown Bucharest, where the intense car traffic accounts for 70% of the local air pollution. One site in particular (Cişmigiu park) was highly contaminated with Pb, Cd, Zn and Cu at about ten times the background levels of Pb. Collembola were sampled in 2006 (July, September, November) using the transect method: 2,475 individuals from 34 species of Collembola were collected from 210 samples of soil and litter. Numerical densities differed significantly between the studied sites.The influence of air pollutants on the springtail fauna was visible at the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Heavy metals; Soil contamination; Species diversity; Urban parks.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2009000800010

Effects of high arsenic and fluoride soil concentrations on soybean plants
Provedor de dados: 85
Autores: Bustingorri,C; Balestrasse,K; Lavado,RS.
Arsenic (As) and Fluoride (F) are present in many soils, affecting crops and posing risks in the food chain. We performed pot experiments on spiked soils enriched in these elements either individually or simultaneously, over a wide range of concentrations. Soybean biomass production, grain yield, As and F accumulation and distribution within the plant, and the antioxidant response to these stresses were analyzed. Arsenic was more toxic than F. At As levels &gt;35 mg/kg and F levels &gt;375 mg/kg, yield loss reached 60% and 30%, respectively. At the highest dose of As plants died within 2 weeks, whereas F showed no lethality. When they were applied simultaneously, detrimental effects were more important. As and F in plants increased in all soybean organs...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Soil contamination; Toxic elements in crops; Grain contamination; Oxidative stress; Soybean.
Ano: 2015
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-56572015000200020

CHROMIUM IN SOIL ORGANIC MATTER AND COWPEA AFTER FOUR CONSECUTIVE ANNUAL APPLICATIONS OF COMPOSTED TANNERY SLUDGE
Provedor de dados: 90
Autores: Oliveira,Mara Lucia Jacinto; Araujo,Ademir Sérgio Ferreira de; Melo,Wanderley José de.
Tannery sludge contains high concentrations of inorganic elements, such as chromium (Cr), which may lead to environmental pollution and affect human health The behavior of Cr in organic matter fractions and in the growth of cowpea (Vigna unguiculata L.) was studied in a sandy soil after four consecutive annual applications of composted tannery sludge (CTS). Over a four-year period, CTS was applied on permanent plots (2 × 5 m) and incorporated in the soil (0-20 cm) at the rates of 0, 2.5, 5.0, 10.0, and 20.0 Mg ha-1 (dry weight basis). These treatments were replicated four times in a randomized block design. In the fourth year, cowpea was planted and grown for 50 days, at which time we analyzed the Cr concentrations in the soil, in the fulvic acid, humic...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Soil contamination; Humic substances; Solid residue; Heavy metals; Plant growth; Trace elements.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832015000100297

Comparison of digestion methods to determine heavy metals in fertilizers
Provedor de dados: 90
Autores: 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

Chemical and physical properties of organic residues
Provedor de dados: 90
Autores: Higashikawa,Fábio Satoshi; Silva,Carlos Alberto; Bettiol,Wagner.
Due to human activity, large amounts of organic residue are generated daily. Therefore, an adequate use in agricultural activities requires the characterization of the main properties. The chemical and physical characterization is important when planning the use and management of organic residue. In this study, chemical and physical properties of charcoal, coffee husk, pine-bark, cattle manure, chicken manure, coconut fiber, sewage sludge, peat, and vermiculite were determined. The following properties were analyzed: N-NH4+, N-N0(3)-, and total concentrations of N, P, S, K, Ca, Mg, Mn, Zn, Cu, and B, as well as pH, Electrical Conductivity (EC) and bulk density. Coffee husk, sewage sludge, chicken manure and cattle manure were generally richer in nutrients....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Substrate; Organic residue; Soil contamination; Residue disposal.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832010000500026

Assessment of Trace Element Contents in Soils and Water from Cerrado Wetlands, Triângulo Mineiro Region
Provedor de dados: 90
Autores: Ribeiro,Bruno Teixeira; Nascimento,Diogo Costa; Curi,Nilton; Guilherme,Luiz Roberto Guimarães; Costa,Enio Tarso de Souza; Lopes,Guilherme; Carneiro,João Paulo.
ABSTRACT In the Brazilian Cerrado biome, there are wetlands locally known as “Veredas”, which are swampy plains between hills and rivers. Since the 1970’s, the Cerrado biome has been gradually converted to livestock, crop, or forestry production. Until now, very few studies were conducted to evaluate the baseline contents of trace elements in Cerrado wetland soils. Due to their position in the landscape (bottom lands), the wetlands are potentially susceptible to contamination by runoff and/or leaching from surrounding areas at higher altitudes. This work evaluated the As, Cd, Pb, Ni, Zn, Cu, Mn, and Fe contents in soils from six wetlands (undisturbed and disturbed) in the Minas Gerais Triangle region, Brazil. In each wetland, we collected topsoil samples...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Waterlogged soils; Soil contamination; Tropical soils; Heavy metals.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832019000100515

Arsenic toxicity in Acacia mangium willd. and mimosa Caesalpiniaefolia benth. seedlings
Provedor de dados: 90
Autores: Cipriani,Henrique Nery; Dias,Luiz Eduardo; Costa,Maurício Dutra; Campos,Naiara Viana; Azevedo,Aristéa Alves; Gomes,Roberto Junio; Fialho,Izabela Ferreira; Amezquita,Sandra Patrícia Montealegre.
Acacia mangium and Mimosa caesalpiniaefolia are fast-growing woody fabaceous species that might be suitable for phytoremediation of arsenic (As)-contaminated sites. To date, few studies on their tolerance to As toxicity have been published. Therefore, this study assessed As toxicity symptoms in A. mangium and M. caesalpiniaefolia seedlings under As stress in a greenhouse. Seedlings of Acacia mangium and M. caesalpiniaefolia were grown for 120 d in an Oxisol-sand mixture with 0, 50, 100, 200, and 400 mg kg-1 As, in four replications in four randomized blocks. The plants were assessed for visible toxicity symptoms, dry matter production, shoot/root ratio, root anatomy and As uptake. Analyses of variance and regression showed that the growth of A. mangium and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Arsenate; Heavy metals; Phytoremediation; Root anatomy; Soil contamination.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832013000500031

Sulfamethoxazole sorption in eutrophic Regolithic Neosol
Provedor de dados: 91
Autores: Barros,Márcia A. M. F. de; Antonino,Antônio C. D.; Schuler,Alexandre R. P.; Lima,José R. de S.; Gondim,Manuella V. S.; Lima,Valmir F. de.
ABSTRACT This study aimed to evaluate sulfamethoxazole sorption kinetics and isotherms using batch method. The experiment was carried out in typic eutrophic Regolithic Neosol (0-20 and 20-60 cm layers) located in the private reserve of the Riacho do Papagaio farm, in São João, PE, Brazil. The tests were carried out under laboratory conditions at 24 ºC and sulfamethoxazole concentration was determined by high-performance liquid chromatography. The sorption experiment through the batch method used sulfamethoxazole solutions with concentrations of 10-3, 5.10-4, 10-4, 5.10-5, 10-5 and 5.10-6 mol L-1 to obtain the analytical curve. For this soil, sulfamethoxazole sorption kinetics was best described by a second-order model and the sorption isotherms were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Soil contamination; Interaction; Adsorption.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662018000700506

Growth, tolerance and zinc accumulation in Senna multijuga and Erythrina crista-galli seedlings
Provedor de dados: 91
Autores: Scheid,Douglas L.; Marco,Rudinei D.; Grolli,André L.; Silva,Rodrigo F. da; Da Ros,Clovis O.; Andreazza,Robson.
ABSTRACT Zinc (Zn) is a micronutrient that is reaching toxic levels in the soil, with the intensification of agricultural and industrial activities. The objective of this study was to evaluate the growth, accumulation and tolerance of Erythrina crista-galli and Senna multijuga seedlings in soil with addition of increasing Zn levels. The study was conducted in a greenhouse for 120 days, using a completely randomized design in a 2 x 6 factorial arrangement, corresponding to two tree species (S. multijuga and E. crista-galli) and six doses of zinc in the soil (0, 200, 400, 600, 800 and 1000 mg kg-1) with six replicates. E. crista-galli and S. multijuga seedlings decreased root and shoot dry weight with increasing Zn doses. E. crista-galli and S. multijuga...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Native woody species; Heavy metal; Soil contamination; Phytostabilization.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662017000700465

Cadmium phytoavailability in soils and evaluation of extractant effectiveness using an isotope technique
Provedor de dados: 63
Autores: Guerra,Fernando; Trevizam,Anderson Ricardo; Fior,Rafael Carvalho; Muraoka,Takashi.
Large areas of land are nowadays contaminated by heavy metals and, it is therefore, important to monitor their levels in soils. Vegetables act as transfer mechanisms of such contaminants from soils to higher levels in the food chain. In this study, we aimed to evaluate the effectiveness of chemical extractants by the L-value method for Cd phytoavailability using the 109Cd radionuclide. In a greenhouse experiment, rocket plants (Eruca sativa L.) were cultivated in pots with samples from Typic Hapludox and Typic Quartzipsamment soils. Cadmium concentrations ranging from 0 to 16 mg kg-1 were added to a 200 mL solution containing 148 kBq 109Cd. The available Cd in the soil was extracted by DTPA, Mehlich-1, Mehlich-3, and a mixture of organic acids (acetic,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Potentially toxic element; L-value; Radioactive tracer; Weathered tropical soils; Soil contamination.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162014000500010

IMPACT OF CRUDE OIL ON FUNCTIONAL GROUPS OF CULTURABLE BACTERIA AND COLONIZATION OF SYMBIOTIC MICROORGANISMS IN THE Clitoria-Brachiaria RHIZOSPHERE GROWN IN MESOCOSMS
Provedor de dados: 37
Autores: ALARCÓN,Alejandro; GARCÍA-DÍAZ,Mariano; HERNÁNDEZ-CUEVAS,Laura Verónica; ESQUIVEL-COTE,Rosalba; FERRERA-CERRATO,Ronald; ALMARAZ-SUAREZ,Juan José; FERRERA-RODRÍGUEZ,Ofelia.
ABSTRACT This research evaluated the changes on populations of culturable N-fixing free bacteria (NFFB) and P-solubilizing bacteria (PSB), as well as on the root nodulation by native rhizobia, the root colonization and spore number of arbuscular mycorrhizal fungi (AMF), in the rhizosphere of Clitoria ternatea and Brachiaria brizantha grown in mesocosms contaminated with crude oil (0, 3000, 6000, 9000, and 12000 mg kg-1), for 240 days. After 24 h of soil contamination, the highest populations of NFFB and PSB (5.5 and 4.9 LogUFC, respectively) were found in control, and the lowest populations were obtained at 12000 mg kg-1 (5.1 and 4.2 LogUFC, respectively). In contrast, at 60 and 240 days, the control showed lower populations of NFFB and PSB (5.4 and 4.8...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Arbuscular mycorrhizal fungi; Crude oil; N-fixing free bacteria; P-solubilizing bacteria; Root nodulation; Soil contamination.
Ano: 2019
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2019000200343

Changes in the microbial community during bioremediation of gasoline-contaminated soil
Provedor de dados: 58
Autores: Leal,Aline Jaime; Rodrigues,Edmo Montes; Leal,Patrícia Lopes; Júlio,Aline Daniela Lopes; Fernandes,Rita de Cássia Rocha; Borges,Arnaldo Chaer; Tótola,Marcos Rogério.
Abstract We aimed to verify the changes in the microbial community during bioremediation of gasoline-contaminated soil. Microbial inoculants were produced from successive additions of gasoline to municipal solid waste compost (MSWC) previously fertilized with nitrogen-phosphorous. To obtain Inoculant A, fertilized MSWC was amended with gasoline every 3 days during 18 days. Inoculant B received the same application, but at every 6 days. Inoculant C included MSWC fertilized with N–P, but no gasoline. The inoculants were applied to gasoline-contaminated soil at 10, 30, or 50 g/kg. Mineralization of gasoline hydrocarbons in soil was evaluated by respirometric analysis. The viability of the inoculants was evaluated after 103 days of storage under refrigeration...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bioremediation; Gasoline degradation; Soil contamination; Microbial inoculants; Inoculant storage.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822017000200342

Enrichment of arbuscular mycorrhizal fungi in a contaminated soil after rehabilitation
Provedor de dados: 58
Autores: Lopes Leal,Patrícia; Varón-López,Maryeimy; Gonçalves de Oliveira Prado,Isabelle; Valentim dos Santos,Jessé; Fonsêca Sousa Soares,Cláudio Roberto; Siqueira,José Oswaldo; de Souza Moreira,Fatima Maria.
Abstract Spore counts, species composition and richness of arbuscular mycorrhizal fungi, and soil glomalin contents were evaluated in a soil contaminated with Zn, Cu, Cd and Pb after rehabilitation by partial replacement of the contaminated soil with non-contaminated soil, and by Eucalyptus camaldulensis planting with and without Brachiaria decumbens sowing. These rehabilitation procedures were compared with soils from contaminated non-rehabilitated area and non-contaminated adjacent soils. Arbuscular mycorrhizal fungi communities attributes were assessed by direct field sampling, trap culture technique, and by glomalin contents estimate. Arbuscular mycorrhizal fungi was markedly favored by rehabilitation, and a total of 15 arbuscular mycorrhizal fungi...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Glomeromycota; Heavy metals; Soil contamination; Mycorrhiza; Revegetation.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822016000400853