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http://hdl.handle.net/1843/41683
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DC Field | Value | Language |
---|---|---|
dc.creator | Bruno Martins Dala-Paula | pt_BR |
dc.creator | Flávia Beatriz Custódio | pt_BR |
dc.creator | Eliana Aparecida Nonato Knupp | pt_BR |
dc.creator | Helena Eugênia Leonhardt Palmieri | pt_BR |
dc.creator | José Bento Borba da Silva | pt_BR |
dc.creator | Maria Beatriz de Abreu Glória | pt_BR |
dc.date.accessioned | 2022-05-13T23:13:49Z | - |
dc.date.available | 2022-05-13T23:13:49Z | - |
dc.date.issued | 2018-11 | - |
dc.citation.volume | 242 | pt_BR |
dc.citation.issue | Part A | pt_BR |
dc.citation.spage | 383 | pt_BR |
dc.citation.epage | 389 | pt_BR |
dc.identifier.doi | 10.1016/j.envpol.2018.04.101 | pt_BR |
dc.identifier.issn | 0269-7491 | pt_BR |
dc.identifier.uri | http://hdl.handle.net/1843/41683 | - |
dc.description.resumo | Urban agriculture plays an important role in sustainable food supply. However, because of the atmospheric pollution and soil contamination associated with urban areas, this activity may be of concern. In fact, contamination of soil with metals and the transference of contaminants to vegetables can represent health and safety risks associated with urban agriculture. The objective of this study was to evaluate the concentrations of selected trace metals (cadmium, copper and lead) in three lettuce cultivars produced in three different urban gardens in the metropolitan region of Belo Horizonte, Brazil and their respective soils. Samples of lettuce and soil were analyzed by inductively coupled plasma mass spectrometry (ICP-MS) and graphite furnace atomic absorption spectrometry (AAS-GF), respectively, and their transfer coefficients were calculated. The methods were optimized and were fit for the purpose. Copper was the prevalent metal found in soils and lettuce, with an average of 27.9 ± 13.9 and 0.608 ± 0.157 mg kg−1 respectively, followed by lead (19.4 ± 7.7 and 0.037 ± 0.039 mg kg−1), and cadmium (0.16 ± 0.03 and 0.009 ± 0.005 mg kg−1). Cadmium presented the largest transfer coefficients, ranging from 0.34 to 1.84 with an average of 0.92 ± 0.45, which may indicate a potential risk of accumulation in vegetables in the case of high soil contamination. A significant positive correlation was observed (p < 0.01) between cadmium in lettuce and in soil. Even though lead concentrations varied in the soils from the different urban areas, ranging from 11.88 to 30.01 mg kg−1, no significant difference (p < 0.05) was found among the lettuce, probably due to its low mobility (transfer coefficient = 0.02). The copper and cadmium levels found in lettuce indicate safe lettuce production in the three urban gardens. | pt_BR |
dc.description.sponsorship | CNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológico | pt_BR |
dc.description.sponsorship | FAPEMIG - Fundação de Amparo à Pesquisa do Estado de Minas Gerais | pt_BR |
dc.description.sponsorship | CAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior | pt_BR |
dc.language | eng | pt_BR |
dc.publisher | Universidade Federal de Minas Gerais | pt_BR |
dc.publisher.country | Brasil | pt_BR |
dc.publisher.department | FAR - DEPARTAMENTO DE ALIMENTOS | pt_BR |
dc.publisher.department | FAR - DEPARTAMENTO DE PRODUTOS FARMACÊUTICOS | pt_BR |
dc.publisher.initials | UFMG | pt_BR |
dc.relation.ispartof | Environmental Pollution | pt_BR |
dc.rights | Acesso Restrito | pt_BR |
dc.subject | Sustainability | pt_BR |
dc.subject | Trace metals | pt_BR |
dc.subject | Cadmium | pt_BR |
dc.subject | Copper | pt_BR |
dc.subject | Lead | pt_BR |
dc.subject | Food safety | pt_BR |
dc.subject.other | Alface | pt_BR |
dc.subject.other | Cádmio | pt_BR |
dc.subject.other | Cobre | pt_BR |
dc.subject.other | Chumbo | pt_BR |
dc.subject.other | Agricultura urbana | pt_BR |
dc.subject.other | Segurança alimentar | pt_BR |
dc.title | Cadmium, copper and lead levels in different cultivars of lettuce and soil from urban agriculture | pt_BR |
dc.type | Artigo de Periódico | pt_BR |
dc.url.externa | https://www.sciencedirect.com/science/article/pii/S0269749118308753 | pt_BR |
Appears in Collections: | Artigo de Periódico |
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