Cadmium, copper and lead levels in different cultivars of lettuce and soil from urban agriculture

Paula, Bruno Martins Dala; Custódio, Flávia Beatriz; Knupp, Eliana Aparecida Nonato; Palmieri, Helena Eugênia Leonhardt; Silva, José Bento B.; Glória, Maria Beatriz Abreu

doi:10.1016/j.envpol.2018.04.101

Cited by 70 publications

(37 citation statements)

References 26 publications

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“…Cu is also necessary for the development of connective tissue and nerve covering and participates in the Fe metabolism [27]. The examined species had higher Cu levels if compared with lettuce [32,35] and lower Cu levels if compared with medicinal herbs such as Echinacea purpurea [36]. In our analyses, it is not possible to figure out changes in Fe content observed between the different cultivation techniques.…”

Section: Resultsmentioning

confidence: 72%

Evaluation of Major Minerals and Trace Elements in Wild and Domesticated Edible Herbs Traditionally Used in the Mediterranean Area

Ceccanti

Brizzi

Landi

et al. 2020

Biol Trace Elem Res

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The human diet is characterized by the intake of major minerals (Na, K, Ca, Mg, P, N) and trace elements (Zn, Mn, Se, Cu, Fe, Co, I, Cr, F, Pb, Cd) for their key role in many metabolic functions. Nowadays, the research of sources able to improve their intake is in continuous evolution, especially in the undeveloped countries. In this sense, wild edible herbs, commonly used since ancient times, can represent a good alternative to improve the daily human intake of minerals. In this study, four wild edible species, Rumex acetosa, Picris hieracioides, Cichorium intybus, and Plantago coronopus, were analyzed for their content in Na, K, Ca, Mg, Cu, Mn, Fe, and Zn and, besides, three domestications (named “soilless,” pot, and open field) were evaluated in the analyzed species in the prospective of their commercialization as valuable sources of minerals in the human diet. Nitrate and oxalate contents were also evaluated, given their negative impact on human health. Results unveil that open field domestication allowed the plants to maintain the content of major minerals similar to those measured in wild plants, especially in C. intybus and P. hieracioides. The trace elements Cu, Mn, Fe, and Zn were not recorded at high content irrespectively to the wild collection or domestications. Finally, plants grown in the open field also accounted for a high oxalate and nitrate content, especially in R. acetosa. Further researches should be aimed at decreasing the oxalate and nitrate content in the domesticated species and to promote the commercialization of the domesticated species.

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Section: Resultsmentioning

confidence: 72%

Evaluation of Major Minerals and Trace Elements in Wild and Domesticated Edible Herbs Traditionally Used in the Mediterranean Area

Ceccanti

Brizzi

Landi

et al. 2020

Biol Trace Elem Res

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“…Nan [47] reported that various environmental factors could affect the bioavailability and metal accumulation in plants. Some studies reported that soil pH, cation exchange capacity (CEC), organic matter (OM) and soil texture could be important for the metal bioavailability and uptake by the crop plants [48,49]. Thus, further studies are needed to investigate the effects of soil physic-chemical properties on metal accumulation in plants, especially in the edible parts.…”

Section: Genotypic Classification Of Late Rice Cultivars Based On CD mentioning

confidence: 99%

Cataloging of Cd Allocation in Late Rice Cultivars Grown in Polluted Gleysol: Implications for Selection of Cultivars with Minimal Risk to Human Health

Lin

Tong

Hussain

et al. 2020

IJERPH

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Cadmium (Cd) is a toxic trace metal that has polluted 20% of agricultural land in China where its concentration exceeds the standards for Chinese farmland. Plants are capable of accumulating Cd and other trace metals, but this capacity varies with species and cultivars within a species. Rice is a staple food consumed by half of the global population. In order to select safe late rice cultivars that are suitable late rice cultivars that can be cultivated in for growing in slightly contaminated soil, a two-year field experiment was conducted with 27 in the first year and 9 late rice cultivars in the second year. The results showed that plant Cd concentrations varied among the cultivars, with high magnitudes of variation occurred in straw and grains. Five genotypes including LR-12, LR-17, LR-24, LR-25 and LR-26 were identified as low accumulators for the first year while LR-15 and LR-17 were identified as promising cultivars based on Cd concentration in the polished rice grains (<0.02 mg kg−1 DW). In addition, these cultivars had favorable traits, including mineral nutrition and grain yield. Therefore, these genotypes should be considered for cultivation in slightly or moderately Cd contaminated soils.

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“…Observou-se que a concentração de Cd, no substrato inicial, encontrava-se abaixo do VP (1,3 mg kg -1 ), e que sob os tratamentos T1 e T2, os valores médios se encontraram entre os valores de VP e o VI (3 mg kg -1 ), com uma dispersão maior para as amostras do caso T1, pelos baixos valores de concentração para Cd. Os resultados apontados por Dala-Paula et al (2018), para o elemento Cd, variaram de 0,14 a 0,20 mg kg -1 no jardim e no centro, respectivamente. Valores bem maiores de concentração foram encontrados no presente estudo -de 1,21 mg kg -1 (inicial) a 1,88 (T1) mg kg -1 .…”

Section: Técnicaunclassified

Avaliação De Metais Tóxicos De Alfaces Cultivadas Em Horta Urbana Na Cidade De São Paulo, São Paulo

Bortoletto

Lima

Fávaro³

et al. 2019

Rev. Bras. Ciênc. Ambient. (Online)

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As hortas urbanas trazem benefícios alimentares e sociais, mas os poluentesatmosféricos são nocivos à saúde. Então, surge a questão: os alimentos dashortas urbanas são seguros? Para investigar, neste estudo utilizou-se a alfacecrespa, a mais consumida em São Paulo e bioindicadora de metais tóxicos.A pesquisa ocorreu de agosto a outubro de 2018, em horta urbana no telhadode um grande shopping da cidade de São Paulo, cercado de intenso tráfego deveículos. Utilizaram-se dois tratamentos, cultivo a céu aberto (T1) e cultivoem estufa com controle de ar (T2), com nove repetições cada. Após 60 dias,quantificaram-se as concentrações médias, nas amostras, dos elementosarsênio (As), cádmio (Cd), cromo (Cr), chumbo (Pb) e zinco (Zn), que nãoultrapassaram os limites máximos preconizados pela Agência Nacional deVigilância Sanitária (ANVISA). Concluiu-se que as alfaces não oferecem riscosà saúde humana, e o tratamento T2 reduziu o teor de Zn na alface (p<0,05).

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Cadmium, copper and lead levels in different cultivars of lettuce and soil from urban agriculture

Cited by 70 publications

References 26 publications

Evaluation of Major Minerals and Trace Elements in Wild and Domesticated Edible Herbs Traditionally Used in the Mediterranean Area

Evaluation of Major Minerals and Trace Elements in Wild and Domesticated Edible Herbs Traditionally Used in the Mediterranean Area

Cataloging of Cd Allocation in Late Rice Cultivars Grown in Polluted Gleysol: Implications for Selection of Cultivars with Minimal Risk to Human Health

Avaliação De Metais Tóxicos De Alfaces Cultivadas Em Horta Urbana Na Cidade De São Paulo, São Paulo

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