Heavy metal contents in horticultural crops of a representative area of the European Mediterranean region

Peris, M.; Micó, C.; Recatalá, L.; Sánchez, Raúl López; Sánchez, Joaquín Fernández

doi:10.1016/j.scitotenv.2007.01.030

Cited by 133 publications

(86 citation statements)

References 18 publications

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“…Under normal conditions, heavy metals are not found in soils at concentrations that represent a risk to the environment or human health. On the other hand, activities such as mining, waste disposal, atmospheric deposition and intense farming activity may increase heavy metal contents in the soil (Mendes et al 2006, Peris et al 2007.…”

Section: Teores De Metais Pesados Em Latossolos Cultivados Com Olerícmentioning

confidence: 99%

“…As such, monitoring the soil quality in these areas is vital for risk assessment. For example, Peris et al (2007) recorded Cu, Pb and Zn enrichment in soil used to grow vegetables in Spain, while Alam et al (2003) reported the contamination of vegetable species with As, Cd and Pb, in a soil in Bangladesh.…”

Section: Teores De Metais Pesados Em Latossolos Cultivados Com Olerícmentioning

confidence: 99%

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Heavy metal contents in Latosols cultivated with vegetable crops1

Silva

Galindo

Nascimento

et al. 2016

Pesqui. Agropecu. Trop.

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Heavy metals are naturally found in soils, but their levels may increase as a result of anthropogenic actions. This study aimed at determining the concentrations of Cd, Cu, Mn, Ni, Pb and Zn in Yellow Latosol from vegetable crops areas, as well as the influence of the cultivation and position in the landscape on the accumulation of these elements. Soil samples were collected from five farming areas and four areas with natural vegetation, which served as a reference. Soil was collected along the planting rows from three transect positions (upper, middle and lower sections of the slope), as well as from the upper portion of forest areas, at three depths (0.0-0.10 m, 0.10-0.30 m and 0.30-0.60 m). The results from the chemical analyses indicated that Cd, Cu, Mn, Pb and Zn levels in the soil increased as a result of cultivation. Only Cd and Cu concentrations were above the quality reference values for the Pernambuco State. The multivariate analysis techniques used were efficient at separating the environments and at differentiating the origin of the metals. Soils from forest areas were clearly separated from croplands, demonstrating the effect of agricultural practices on the metal contents in the soils. The principal component analysis indicated a predominantly anthropogenic origin (phosphate fertilizing) for Cd, in more superficial soil samples.

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Section: Teores De Metais Pesados Em Latossolos Cultivados Com Olerícmentioning

confidence: 99%

Section: Teores De Metais Pesados Em Latossolos Cultivados Com Olerícmentioning

confidence: 99%

Heavy metal contents in Latosols cultivated with vegetable crops1

Silva

Galindo

Nascimento

et al. 2016

Pesqui. Agropecu. Trop.

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“…The metal is particularly dangerous as plants growing even in the low-level contaminated soils can absorb and accumulate Cd in their edible tissues in large quantities, without any visible indication, thereby becoming a part of the human food chain . A recent study in Europe noted the contents of Cd in vegetables to be higher than the known safe thresholds (Peris et al 2007). Since cereals, potatoes and vegetables account for 70% of the dietary intake (Grawe, 1996), and Cd is reported to have high mobility from soil to plants (Jansson, 2002;Liu et al 2007), the metal has been the subject of increasing interest of study (Yujing et al 2008).…”

Section: Introductionmentioning

confidence: 99%

Effects of heavy metals toxicity on the biochemical response in tomato plants grown in contaminated silt-soil

Saeed

Sohail

Rashi

et al. 2014

Bangladesh J. Sci. Ind. Res.

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Toxic effects of Cu 2+ , Zn 2+ and Cd 2+ in tomato plants were the reduction in vegetative growth of seedlings and also in flowering and fruiting. Toxicity of these heavy metals resulted in a reduction in chlorophyll a, chlorophyll b and soluble sugars, but in an increase in proline. Toxic metal stress caused a 71.71, 77.70 and 11.90% increase in the activities of peroxidase, catalase and ascorbic acid oxidase, respectively. With respect to the total uptake of Cd 2+ , the biggest sink for the metal was provided by roots with 72.80% retention followed by 22% in the stem. Accumulation of Cd 2+ and Zn 2+ gradually increased in the order of root, stem and leaves, but for Cu 2+ that was reversed, that is, it increased in the order of leaf, stem and root. A new consideration of metals bioavailability is discussed in terms of their respective solubility product constants, pH of precipitation, and metal complexation.

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“…A weak point of previous research is the absence of appropriate control when comparing urban to rural horticultural production. Most of the available cases addressed contaminations in urban (Bakirdere and Yaman 2008;Bretzel and Calderisi 2006;Khan et al 2008;Vittori et al 2009) or rural (Peris et al 2007) cases only. On the other hand, when a comparison of urban versus rural horticultural good is claimed (Säumel et al 2012), no reference to the growing conditions and provenance of the rural product is given.…”

Section: Introductionmentioning

confidence: 99%

Heavy metal accumulation in vegetables grown in urban gardens

Antisari¹,

Orsini²,

Marchetti³

et al. 2015

Agron. Sustain. Dev.

136

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Urban agriculture is increasingly popular for social and economical benefits. However, edible crops grown in cities can be contaminated by airborne pollutants, thus leading to serious health risks. Therefore, we need a better understanding of contamination risks of urban cultivation to define safe practices. Here we study heavy metal risk in horticultural crops grown in urban gardens of Bologna, Italy. We investigated the effect of proximity to different pollution sources such as roads and railways, and the effect of the growing system used, that is soil versus soilless cultivation. We compared heavy metal concentration in urban and rural crops. We focused on surface deposition and tissue accumulation of pollutants during 3 years. Results show that in the city, crops near the road were polluted by heavy metals, with up to 160 mg per kilogram of dry weight for lettuce and 210 mg/kg for basil. The highest Cd accumulation of up to 1.2 mg/kg was found in rural tomato. Soilless planting systems enabled a reduction of heavy metal accumulation in plant tissue, of up to −71 % for rosemary leaves.

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Heavy metal contents in horticultural crops of a representative area of the European Mediterranean region

Cited by 133 publications

References 18 publications

Heavy metal contents in Latosols cultivated with vegetable crops1

Heavy metal contents in Latosols cultivated with vegetable crops1

Effects of heavy metals toxicity on the biochemical response in tomato plants grown in contaminated silt-soil

Heavy metal accumulation in vegetables grown in urban gardens

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