Acúmulo de metais pesados e alterações químicas em Cambissolo cultivado com meloeiro

Mendes, A. M.; Duda, Gustavo Pereira; Nascimento, Clístenes Willians Araújo do; Lima, José Alexsandro Guimarães; Medeiros, Aluízio D. L.

doi:10.1590/s1415-43662010000800001

Cited by 10 publications

(7 citation statements)

References 20 publications

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“…Agriculture is one of the most important sources of heavy metal pollution of bodies of water, largely through fertilizers (Cd, Cr, Pb, Zn) and pesticides (Cu, Pb, Mn, Zn) (Mendes et al, 2006, Silva et al, 2016. In this respect, although agrochemicals are a decisive factor in increasing yields, they can also cause heavy metal contamination (Mendes et al, 2010). For example, fertilizers made from phosphate rocks can increase levels of heavy metals such as Cd, Cu, Mn, Ni, Pb and Zn in the soil (Freitas et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

Heavy metals in waters used for human consumption and crop irrigation

Silva¹,

Galindo²,

Nascimento³

et al. 2018

Rev. ambiente água

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The consumption of contaminated water is a major source of heavy metal contamination in humans and animals. This study therefore aimed to assess Cd, Cu, Mn, Ni, Pb, and Zn levels in water used for human and animal consumption and vegetable crop irrigation in Camocim de São Félix, Pernambuco, Brazil. Water samples were collected on the studied farms from an artesian well and reservoirs used for human and animal consumption as well as for crop irrigation. The results showed that concentrations of Cd (> 0.001 mg L-1), Ni (> 0.025 mg L-1) and Pb (> 0.01 mg L-1) were above the maximum allowable limits established under Brazilian law, indicating the need for a preventive monitoring program and immediate intervention initiatives aimed at the sources of contamination. The results demonstrate the need to quantify heavy metal content in vegetable crops, since their contamination by irrigation water may make them harmful to human health. Rainfall has a seasonal effect on heavy metal concentrations in water, showing a significant effect on Pb levels, whereas Cd and Ni content was less dependent on seasonal variation.

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Section: Introductionmentioning

confidence: 99%

Heavy metals in waters used for human consumption and crop irrigation

Silva¹,

Galindo²,

Nascimento³

et al. 2018

Rev. ambiente água

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“…In the 10 and 26 year-old orchards, the Cu contents were also higher than the Cu values found in Oxisols, (surface 2.03 mg kg -1 ) and in the subsurface (3.40 mg kg -1 ). Mendes et al (2010) found a significant increase in the Cu level in soil under melon, with values as high as 102.5 and 125.33 mg kg -1 , above the prevention value of 60 mg kg -1 (CONAMA, 2009).…”

Section: Resultsmentioning

confidence: 90%

“…In the 20-40 cm layer, the contents of Pb varied from UD to 3.47 mg kg -1 in the CA and from UD to 7.88 mg kg -1 in the RA. In contrast, Mendes et al (2010) and others in the RA (Figure 4). The soils contained higher Mn levels in the RA after 6, 11, 14, 16, 17, and 19 years, differing from the areas after 8, 9, 10, and 26 years, where the levels were higher in CA than in RA.…”

Section: Resultsmentioning

confidence: 93%

“…Thus, the continued use of fertilizers and pesticides was identified as the primary pathway for the introduction of metals into agricultural soils (Núñez et al, 2006). Organic fertilizers, depending on the origin, can also release heavy metals in the soil, originating mainly from additives in animal feed (O'Neill, 1993;Mendes et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

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Heavy metals in soils and plants in mango orchards in Petrolina, Pernambuco, Brazil

Silva

Nascimento

Biondi

et al. 2012

Rev. Bras. Ciênc. Solo

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SUMMARYThe monitoring of heavy metal concentrations in areas under intensive agriculture is essential for the agricultural sustainability and food safety. This paper evaluates the total contents of heavy metals in soils and mango trees in orchards of different ages (6, 7, 8, 9, 10, 11, 14, 16, 17, 19, and 26 years) in Petrolina, Pernambuco, Brazil. Soil samples were taken from the layers 0-20 cm and 20-40 cm, and mango leaves were collected in the growth stage. Areas of native vegetation (Caatinga) adjacent to the cultivated areas were used for comparison. The total concentrations of heavy metals (Cu, Cr, Fe, Zn, Mn, Ni, and Pb) were determined in soils and leaves. In general, mango cultivation led to Cu and Zn accumulation in the soil surface and to a reduction in the contents of Ni, Pb, Mn, and Fe in surface and subsurface. Since contamination by Cu, Zn, and Cr was detected, these areas must be monitored to prevent negative environmental impacts. For instance, the presence of Cr in mango tree leaves indicates the need to investigate the source of the element in these orchards. The management strategies of the different companies led to deficiency or excess of some metals in the evaluated areas. However, the Fe and Mn levels were adequate for the mineral nutrition of mango in all areas.

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“…They observed vermicompost was more efficient in reducing toxicity of Cu to the plants, since Cu is easily complexed with soil organic matter (SOM). High Cu concentrations in soils were also reported in areas with mango (Mangifera indica) trees, cultivated for more than 26 years in Pernambuco State (Silva, Nascimento, Biondi & Cunha, 2012), and with melon (Cucumis melo), cultivated for two years in Rio Grande do Norte State (Mendes, Duda, Nascimento, Lima, & Medeiros, 2010). In both cases, Cu contents were higher than the prevention value (60 mg kg -1 ) allowed by the Brazilian legislation (Conselho Nacional do Meio Ambiente [CONAMA], 2009) for Cu in soils.…”

Section: Introductionmentioning

confidence: 85%

Copper phytotoxicity in agricultural crops cultivated in tropical soils

Engelhardt¹,

Lima²,

Martins³

et al. 2020

Semina: Ciênc. Agrár.

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Copper is a micronutrient for living organisms, but at high concentrations it may cause several deleterious effects. The objective of this study was to evaluate the behavior of agricultural crops to different concentrations of Cu in the soil. The species Triticum aestivum (wheat), Zea mays (maize), Oryza sativa (rice), Phaseolus vulgaris (dry bean), Glycine max (soybean), and Raphanus sativus (radish) were cultivated in the soils Typic Hapludox (TyHpx) and Rhodic Acrudox (RhAcx). The experiment was carried out in a greenhouse and the soils were set in pots in a completely randomized design, with four replicates per treatment adding the following Cu concentrations (as Cu-nitrate): 0, 75, 150, 300, 600, 800, 1000, 1200 mg kg-1 dry soil. Measurements of biological variables, such as shoot dry weight (SDW), plant height, stem diameter, and number of leaves were carried out, in addition to determining Cu content in the SDW. At the TyHpx, a decreasing order of tolerance to Cu phytotoxicity was: dry bean, maize, soybean, wheat, radish, and rice. However, at the RhAcx, the decreasing order was: maize, soybean, radish, wheat, dry bean, and rice. The species that revealed the highest sensitivity to high Cu concentrations in soil was rice and that with the lowest sensitivity was maize.

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Acúmulo de metais pesados e alterações químicas em Cambissolo cultivado com meloeiro

Cited by 10 publications

References 20 publications

Heavy metals in waters used for human consumption and crop irrigation

Heavy metals in waters used for human consumption and crop irrigation

Heavy metals in soils and plants in mango orchards in Petrolina, Pernambuco, Brazil

Copper phytotoxicity in agricultural crops cultivated in tropical soils

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