Influence of airborne dust on the metal concentrations in crop plants cultivated in a rooftop garden in Seoul

Kim, Hyuck-Soo; Kim, Kwon-Rae; Lim, Ga-Hee; Kim, Jin-Won; Kim, Kye-Hoon

doi:10.1080/00380768.2015.1028873

Cited by 21 publications

(22 citation statements)

References 34 publications

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“…This outcome, however, contrasts the results of (Kim et al, 2015), who detected higher concentrations of heavy metals in unwashed lettuce samples than in washed samples in Seoul. Specifically, in that study, compared to unwashed plants, washing reduced the hazard quotient of heavy metals by 17e28%.…”

Section: Manual Washingcontrasting

confidence: 55%

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A study on air quality and heavy metals content of urban food produced in a Mediterranean city (Barcelona)

Ercilla-Montserrat

Muñoz

Montero

et al. 2018

Journal of Cleaner Production

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a b s t r a c tUrban agriculture is growing in cities and is rising to the roofs of buildings. The potential food contamination is a key issue to be resolved to guarantee the health of consumers, and it affects both urban agriculture promoters and consumers. Crop contamination from the soil can be overcome by adopting a soilless cultivation system that, with good management practices, can also avoid contamination from the fertirrigation system and pest treatments. It has recently increased the number of soilless cultivation systems in cities due to the good features it offers. This study focuses on the potential contamination of heavy metals in hydroponic lettuce crops due to atmospheric pollution in high-traffic areas. The contents of heavy metal in the air and the lettuce leaves were measured at 4 sites: a periurbanintegrated rooftop greenhouse, a periurban rooftop, an urban courtyard and an urban rooftop. Highvolume sensors were used to assess air contamination. Lettuce leaves were analysed to evaluate the heavy metal concentrations.The results show that the heavy metal concentration in lettuce leaves is also below the EU-legislated limit in all studied cases. Specifically, the concentrations below the detectable analytic values were <0.02 mgNi/kg, <0.008 mgHg/kg, 0.005mgAs/kg and <0.005 mgCd/kg. The Pb concentration ranged from 0.0060 mg/kg to 0.0244 mg/kg. Although the chosen sampling locations were close to high-density roads and they are more vulnerable to a high concentration of metals, in the 4 sampling points heavy metal concentration in the air were less than 50% of the limits established in the legislation as the lower assessment threshold. This study concludes that the heavy metal content in the air of Barcelona is low and is not a source of contamination for urban crops including high traffic areas.

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Section: Manual Washingcontrasting

confidence: 55%

“…Only for Pb can an initial conclusion be drawn. Pb has been found to be deposited on leaves with dust if the plant is not washed either by rain (Harrison and Chirgawi, 1989;Voutsa et al, 1996) or manually (Finster et al, 2003;Kim et al, 2015). This means that an unwashed lettuce plant contains greater quantities of Pb.…”

Section: Washing Effectmentioning

confidence: 99%

A study on air quality and heavy metals content of urban food produced in a Mediterranean city (Barcelona)

Ercilla-Montserrat

Muñoz

Montero

et al. 2018

Journal of Cleaner Production

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“…Air pollution and the reuse of wastewater are the potential health risks most often associated with ZFarming and are, thus, found to be generally critical acceptance factors (Ross et al 2014). Some of the few existing studies suggest minimum distances to main roads to avoid the contamination of crops by lead and cadmium (Kim et al 2015;Säumel et al 2012;Lee-Smith and Prain 2006). However, an adequate health impact assessment is still lacking.…”

Section: Innovation Processmentioning

confidence: 96%

“…Furthermore, critics cite health risks from food contaminated by air pollution or irrigation with improperly treated wastewater. Researchers stress the importance of proper management to avoid health risks associated with UA practices (Kim et al 2015;Säumel et al 2012;Lee-Smith and Prain 2006). The general perception of UA as not being ''real agriculture'' may also have a negative influence on its practical implementation and diffusion (Sanyé-Mengual et al 2015a).…”

Section: Introductionmentioning

confidence: 98%

Perception and acceptance of agricultural production in and on urban buildings (ZFarming): a qualitative study from Berlin, Germany

2015

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Rooftop gardens, rooftop greenhouses and indoor farms (defined as ZFarming) have been established or planned by activists and private companies in Berlin. These projects promise to produce a range of goods that could have positive impacts on the urban setting but also carry a number of risks and uncertainties. In this early innovation phase, the relevant stakeholders' perceptions and social acceptance of ZFarming represent important preconditions for success or failure of the further diffusion of this practice. We used the framework of acceptance to investigate the stakeholders' attitudes and to identify the key factors that might hinder or promote the introduction of ZFarming. The results are based on an analysis of 38 qualitative interviews conducted with key stakeholders in Berlin. As the results show, major perceived benefits of ZFarming include improved consumer awareness, education, and the creation of experimental spaces. Stakeholders further perceive opportunities for resource savings, new business models, repurposing of abandoned buildings and improved aesthetics. Major perceived risks are associated with growing techniques that are considered ''unnatural'', health risks (due to urban pollutants), conflicts with images of traditional agriculture, the rejection of animal production in urban areas, the risk of projects being too expensive and too complex or being implemented too early, i.e. before the mechanisms are fully understood. The analysis further reveals which contextual factors-political, legal, market-related, spatial or societal-might negatively or positively influence ZFarming acceptance.

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“…Nota-se que não houve praticamente diferença da concentração média de Pb das amostras cultivadas sob o T1 e o T2. Apesar de a época de cultivo ser no inverno, em que se tem menos chuvas, as alfaces de ambos os tratamentos foram irrigadas periodicamente durante o cultivo, o que pode ter lixiviado os metais das folhas, especialmente o Pb depositado em folhas com poeira (VOUTSA;GRIMANIS;SAMARA, 1996;KIM et al, 2015). Diante disso, tanto T1 como T2 tiveram suas alfaces lavadas, o que pode ter contribuído para a não diferença (p > 0,05) entre tratamentos e valores abaixo do limite preconizado pela ANVISA e pela União Europeia (EU, 2011).…”

Section: Alfaceunclassified

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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Influence of airborne dust on the metal concentrations in crop plants cultivated in a rooftop garden in Seoul

Cited by 21 publications

References 34 publications

A study on air quality and heavy metals content of urban food produced in a Mediterranean city (Barcelona)

A study on air quality and heavy metals content of urban food produced in a Mediterranean city (Barcelona)

Perception and acceptance of agricultural production in and on urban buildings (ZFarming): a qualitative study from Berlin, Germany

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

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