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

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dc.creatorBruno Martins Dala-Paula
dc.creatorFlávia Beatriz Custódio
dc.creatorEliana Aparecida Nonato Knupp
dc.creatorHelena Eugênia Leonhardt Palmieri
dc.creatorJosé Bento Borba da Silva
dc.creatorMaria Beatriz de Abreu Glória
dc.date.accessioned2022-05-13T23:13:49Z
dc.date.accessioned2025-09-09T01:12:14Z
dc.date.available2022-05-13T23:13:49Z
dc.date.issued2018-11
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológico
dc.description.sponsorshipFAPEMIG - Fundação de Amparo à Pesquisa do Estado de Minas Gerais
dc.description.sponsorshipCAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
dc.identifier.doi10.1016/j.envpol.2018.04.101
dc.identifier.issn0269-7491
dc.identifier.urihttps://hdl.handle.net/1843/41683
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofEnvironmental Pollution
dc.rightsAcesso Restrito
dc.subjectAlface
dc.subjectCádmio
dc.subjectCobre
dc.subjectChumbo
dc.subjectAgricultura urbana
dc.subjectSegurança alimentar
dc.subject.otherSustainability
dc.subject.otherTrace metals
dc.subject.otherCadmium
dc.subject.otherCopper
dc.subject.otherLead
dc.subject.otherFood safety
dc.titleCadmium, copper and lead levels in different cultivars of lettuce and soil from urban agriculture
dc.typeArtigo de periódico
local.citation.epage389
local.citation.issuePart A
local.citation.spage383
local.citation.volume242
local.description.resumoUrban 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.
local.publisher.countryBrasil
local.publisher.departmentFAR - DEPARTAMENTO DE ALIMENTOS
local.publisher.departmentFAR - DEPARTAMENTO DE PRODUTOS FARMACÊUTICOS
local.publisher.initialsUFMG
local.url.externahttps://www.sciencedirect.com/science/article/pii/S0269749118308753

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