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Please use this identifier to cite or link to this item: http://hdl.handle.net/1843/41683
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dc.creatorBruno Martins Dala-Paulapt_BR
dc.creatorFlávia Beatriz Custódiopt_BR
dc.creatorEliana Aparecida Nonato Knupppt_BR
dc.creatorHelena Eugênia Leonhardt Palmieript_BR
dc.creatorJosé Bento Borba da Silvapt_BR
dc.creatorMaria Beatriz de Abreu Glóriapt_BR
dc.date.accessioned2022-05-13T23:13:49Z-
dc.date.available2022-05-13T23:13:49Z-
dc.date.issued2018-11-
dc.citation.volume242pt_BR
dc.citation.issuePart Apt_BR
dc.citation.spage383pt_BR
dc.citation.epage389pt_BR
dc.identifier.doi10.1016/j.envpol.2018.04.101pt_BR
dc.identifier.issn0269-7491pt_BR
dc.identifier.urihttp://hdl.handle.net/1843/41683-
dc.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.pt_BR
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológicopt_BR
dc.description.sponsorshipFAPEMIG - Fundação de Amparo à Pesquisa do Estado de Minas Geraispt_BR
dc.description.sponsorshipCAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superiorpt_BR
dc.languageengpt_BR
dc.publisherUniversidade Federal de Minas Geraispt_BR
dc.publisher.countryBrasilpt_BR
dc.publisher.departmentFAR - DEPARTAMENTO DE ALIMENTOSpt_BR
dc.publisher.departmentFAR - DEPARTAMENTO DE PRODUTOS FARMACÊUTICOSpt_BR
dc.publisher.initialsUFMGpt_BR
dc.relation.ispartofEnvironmental Pollutionpt_BR
dc.rightsAcesso Restritopt_BR
dc.subjectSustainabilitypt_BR
dc.subjectTrace metalspt_BR
dc.subjectCadmiumpt_BR
dc.subjectCopperpt_BR
dc.subjectLeadpt_BR
dc.subjectFood safetypt_BR
dc.subject.otherAlfacept_BR
dc.subject.otherCádmiopt_BR
dc.subject.otherCobrept_BR
dc.subject.otherChumbopt_BR
dc.subject.otherAgricultura urbanapt_BR
dc.subject.otherSegurança alimentarpt_BR
dc.titleCadmium, copper and lead levels in different cultivars of lettuce and soil from urban agriculturept_BR
dc.typeArtigo de Periódicopt_BR
dc.url.externahttps://www.sciencedirect.com/science/article/pii/S0269749118308753pt_BR
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