Contaminated Urban Soils

Meuser, Helmut

doi:10.1007/978-90-481-9328-8

Cited by 100 publications

(55 citation statements)

References 25 publications

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“…In urban environments, the anthropogenic sources of trace metals include primarily atmospheric inputs from industrial activities, waste incineration, and car use as well as solid inputs such as construction wastes (Alloway 2012;Wong et al 2006). In contrast with agricultural soils, urban soils are characterized by the spatial heterogeneity of contamination (Alloway 2012;Meuser 2010), which complicates remediation strategies. Urban soil contamination by toxic trace metals is detrimental for soil quality but is also harmful for human health resulting from accidental soil ingestion and consumption of crops grown on these soils, generally more exposed to trace metals than when grown in rural areas (Finster et al 2004;Hough et al 2004;Säumel et al 2012;Wang et al 2005).…”

Section: Introductionmentioning

confidence: 99%

Phytoremediation of urban soils contaminated with trace metals using Noccaea caerulescens: comparing non-metallicolous populations to the metallicolous ‘Ganges’ in field trials

Jacobs

Drouet

Sterckeman

et al. 2017

Environ Sci Pollut Res

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Urban soil contamination with trace metals is a major obstacle to the development of urban agriculture as crops grown in urban gardens are prone to accumulate trace metals up to toxic levels for human consumption. Phytoextraction is considered as a potentially cost-effective alternative to conventional methods such as excavation. Field trials of phytoextraction with Noccaea caerulescens were conducted on urban soils contaminated with Cd, Cu, Pb, and Zn (respectively around 2, 150-200, 400-500, and 400-700 μg g −1 of dry soil). Metallicolous (Ganges population) and non-metallicolous (NMET) populations were compared for biomass production and trace metal uptake. Moreover, we tested the effect of compost and fertilizer addition. Maximal biomass of 5 t ha −1 was obtained with NMET populations on some plots. Compared to Ganges-the high Cd-accumulating ecotype from South of France often used in phytoextraction trials-NMET populations have an advantage for biomass production and for Zn accumulation, with an average Zn uptake of 2.5 times higher. The addition of compost seems detrimental due to metal immobilization in the soil with little or no effect on plant growth.In addition to differences between populations, variations of growth and metal accumulation were mostly explained by soil Cd and Zn concentrations and texture. Our field trials confirm the potential of using N. caerulescens for both Cd and Zn remediation of moderately contaminated soils-with uptake values of up to 200 g Cd ha −1 and 47 kg Zn ha −1 -and show the interest of selecting the adequate population according to the targeted metal.

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Section: Introductionmentioning

confidence: 99%

Phytoremediation of urban soils contaminated with trace metals using Noccaea caerulescens: comparing non-metallicolous populations to the metallicolous ‘Ganges’ in field trials

Jacobs

Drouet

Sterckeman

et al. 2017

Environ Sci Pollut Res

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“…Excess of carbon in soil means a surplus presence of energy, and microbial cells will draw larger amount of nitrogen to make use of available carbon. This is known as 'robbing' the soil of nitrogen and it delays the availability of nitrogen as fertilizer in soil (Meuser 2010). A C:N ratio of less than 20 is good for the growth of organisms the soil of nitrogen.…”

Section: Chemical Analysis Of the Soil Samplementioning

confidence: 99%

Bioconversion of organic solid wastes into biofortified compost using a microbial consortium

Sarkar

Chourasia

2017

Int J Recycl Org Waste Agricult

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“…The heterogeneity of the shapes of the Hg concentration profiles could be associated with soils cutting, filling and/or mixing in urbanized areas. The potential effects of urbanization on the compositions of surface and deep soils include the redistribution, homogenization and dilution of natural and anthropogenic elements (Meuser 2010).…”

Section: Total Hg Concentrations In the Mining Wastes And Soilsmentioning

confidence: 99%

Mercury Pollution Assessment of Mining Wastes and Soils From Former Silver Amalgamation Area in North-Central Mexico

Vicencio

Carrizales-Yáñez

Razo-Soto

2017

Rev. Int. Contam. Ambie.

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Mining wastes and soils from Cedral, San Luis Potosí, Mexico, were studied to assess mercury (Hg) pollution in areas of historical silver (Ag) amalgamation and in areas where amalgamation mining wastes were recently reprocessed for Hg and Ag recovery. The total, soluble and bioaccessible Hg concentrations from eight mining waste and nine soil cores were determined at varying depths, which fluctuated from the surface up to 1.0 m depth. The total Hg concentrations in the mining wastes samples ranged from 8 to 548 mg/kg. The total Hg concentrations in the soil samples were lower (1 to 116 mg/kg) than those in the mining wastes. Eighty percent of the soil samples exceeded the maximum permissible limit for residential soils according to the Mexican regulations, demonstrating the impacts of the amalgamation process in Cedral. The soluble Hg concentrations were low, from 0.009 to 0.32 mg/kg in the mining wastes, and from 0.003 to 0.02 mg/kg in soils. The latter represents 0.007 % to 0.54 % and < 0.03 % of total Hg, from mining wastes and soils, respectively, indicating low aqueous Hg transport during rainfall events. The bioaccessible Hg concentrations in the mining waste samples (0.1 to 60 mg/kg) and soil samples (0.1 to 17 mg/kg), suggested that humans could be exposed to this toxic element through the accidental ingestion of mining wastes and soil particles. Although the total Hg concentrations in the mining wastes decreased after reprocessing, the soluble and bioaccessible Hg concentrations increased.Palabras clave: beneficio de patio, jales, reprocesamiento, solubilidad, bioaccesibilidad RESUMENSe estudiaron residuos mineros y suelos de Cedral, San Luis Potosí, México, para evaluar la contaminación por mercurio (Hg) en áreas de amalgamación histórica de plata (Ag) y de reprocesamiento reciente de residuos de amalgamación para la recuperación de Hg y Ag. Se obtuvieron ocho perfiles de hasta 1 m de profundidad de depósitos de 656residuos mineros y nueve de suelo, de los cuales se recolectaron muestras a diferentes profundidades para la determinación de concentraciones totales, solubles y bioaccesibles de Hg. Las concentraciones totales de Hg en residuos mineros variaron entre 8 y 548 mg/kg, mientras que en suelos las concentraciones se presentaron en un rango de entre 1 y 116 mg/kg. Se encontró que el 80 % de las muestras de suelo analizadas superaron el límite máximo permisible de Hg para suelo de uso residencial establecido en la normatividad mexicana, lo que demuestra el severo impacto de la amalgamación y del reprocesamiento de jales de amalgamación en Cedral. Con relación a las concentraciones solubles de Hg, en las muestras de residuos se obtuvieron de 0.009 a 0.32 mg/kg y de 0.003 a 0.02 mg/kg para suelos, lo que representa de 0.007 % a 0.54 % y < 0.03 % del total de Hg contenido en residuos mineros y suelos, respectivamente. Esto indica un bajo potencial de transporte de especies solubles de Hg durante eventos de lluvia. Finalmente, las concentraciones de Hg bioaccesible obtenidas en el estudio (0.1...

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Contaminated Urban Soils

Cited by 100 publications

References 25 publications

Phytoremediation of urban soils contaminated with trace metals using Noccaea caerulescens: comparing non-metallicolous populations to the metallicolous ‘Ganges’ in field trials

Phytoremediation of urban soils contaminated with trace metals using Noccaea caerulescens: comparing non-metallicolous populations to the metallicolous ‘Ganges’ in field trials

Bioconversion of organic solid wastes into biofortified compost using a microbial consortium

Mercury Pollution Assessment of Mining Wastes and Soils From Former Silver Amalgamation Area in North-Central Mexico

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