Local background concentrations of trace elements in soils: a case study in the Grand Duchy of Luxembourg

Horckmans, Liesbeth; Swennen, Rudy; Deckers, Jozef; Maquil, R.

doi:10.1016/j.catena.2004.09.004

Cited by 97 publications

(57 citation statements)

References 20 publications

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“…Additionally, the spatial distribution of the trace metal contamination at the surface of the alluvial soils was estimated in order to evaluate the fine-sediment deposition maps obtained with the Telemac-2D simulations. Zn is recognized as a tracer of the anthropogenic contamination that comes from the river to the soils of the Alzette River floodplain area (Horckmans et al, 2005). The distribution of this contaminant at the soil surface of the study area indicates the dispersion of contaminated sediment during floodings.…”

Section: Geochemistry Datamentioning

confidence: 99%

Modelling suspended-sediment propagation and related heavy metal contamination in floodplains: a parameter sensitivity analysis

Hostache¹,

Hissler²,

Matgen³

et al. 2014

Hydrol. Earth Syst. Sci.

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Abstract. Fine sediments represent an important vector of pollutant diffusion in rivers. When deposited in floodplains and riverbeds, they can be responsible for soil pollution. In this context, this paper proposes a modelling exercise aimed at predicting transport and diffusion of fine sediments and dissolved pollutants. The model is based upon the Telemac hydro-informatic system (dynamical coupling Telemac-2D-Sysiphe). As empirical and semiempirical parameters need to be calibrated for such a modelling exercise, a sensitivity analysis is proposed. An innovative point in this study is the assessment of the usefulness of dissolved trace metal contamination information for model calibration. Moreover, for supporting the modelling exercise, an extensive database was set up during two flood events. It includes water surface elevation records, discharge measurements and geochemistry data such as time series of dissolved/particulate contaminants and suspended-sediment concentrations. The most sensitive parameters were found to be the hydraulic friction coefficients and the sediment particle settling velocity in water. It was also found that model calibration did not benefit from dissolved trace metal contamination information. Using the two monitored hydrological events as calibration and validation, it was found that the model is able to satisfyingly predict suspended sediment and dissolve pollutant transport in the river channel. In addition, a qualitative comparison between simulated sediment deposition in the floodplain and a soil contamination map shows that the preferential zones for deposition identified by the model are realistic.

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Section: Geochemistry Datamentioning

confidence: 99%

Modelling suspended-sediment propagation and related heavy metal contamination in floodplains: a parameter sensitivity analysis

Hostache¹,

Hissler²,

Matgen³

et al. 2014

Hydrol. Earth Syst. Sci.

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“…Their trace element contents vary widely, so that it is inappropriate to use universal background concentrations as a criterion since the native concentrations of metals in a specific soil may exceed any given listed ranges. It is therefore important to determine the values of the GBC and RV concentrations locally [8,18,42,51,52]. To estimate the GBC values, the "standard threshold method" was applied [43].…”

Section: Baseline Concentrationsmentioning

confidence: 99%

Concentrations of Available Heavy Metals in Mediterranean Agricultural Soils and their Relation with Some Soil Selected Properties: A Case Study in Typical Mediterranean Soils

et al. 2014

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Abstract:The characterization of the content of trace metals in soils is an instrument in many programs of environmental protection, including the establishment of regional-level standards to detect sites affected by contamination. The objectives of the present study were to study the available levels of Cd, Cr, Cu, Ni, Pb, and Zn in surface horizons of agricultural soils in a typical European Mediterranean region, to establish the geochemical for Cd, Cr, Cu, Ni, Pb, and Zn, respectively. Soil properties were found to be correlated with the available heavy metal content, suggesting that the enhanced mobility of heavy metals are related to anthropic activities.

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“…A determinação desses teores é de extrema importância na definição de valores orientadores, além de ser indispensável à construção de uma legislação voltada ao monitoramento e à intervenção legal compatível com a realidade local, de forma a se evitarem intervenções inadequadas que acabem em prejuízos financeiros e sociais (Baize & Sterckeman, 2001;Horckmans et al, 2005;Biondi et al, 2011a). Portanto, valores orientadores de referência de qualidade para solos devem refletir a concentração natural de determinada substância no solo e, desse modo, fornecer a base para a avaliação da sua qualidade (Teng et al, 2009 (Conama, 2009).…”

Section: Introductionunclassified

Valores de referência de qualidade para metais pesados em solos do Rio Grande do Norte

Preston

Nascimento

Biondi

et al. 2014

Rev. Bras. Ciênc. Solo

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O crescimento industrial e o populacional têm aumentado os teores de metais pesados nos solos e impactado a qualidade desse recurso. Nesse contexto, as agências de proteção ambiental vêm despendendo esforços para o estabelecimento de índices que possam identificar áreas suspeitas de contaminação. Valores de Referência de Qualidade para Solos (VRQs) refletem a concentração natural de determinada substância no solo, sem interferência antrópica. O trabalho objetivou estabelecer os VRQs para os metais Ag, Ba, Cd, Co, Cr, Cu, Ni, Pb, Sb, V e Zn exigidos pelo Conama, para composição da legislação direcionada ao monitoramento desses elementos nos solos do Estado do Rio Grande do Norte. Foram coletadas 416 amostras de solo em áreas de mata nativa ou com mínima influência antrópica. A abertura das amostras foi efetuada pelo método EPA-3051A, sendo os metais determinados por espectrometria de emissão ótica (ICP-OES) e absorção atômica (AA). Os resultados do trabalho comprovaram que estudos regionalizados são essenciais para definição de VRQs. Os VRQs calculados para o Rio Grande do Norte foram mais restritivos que os de outros estados do país. A análise fatorial de confirmação dos dados foi útil para obtenção de VRQs mais confiáveis e demonstrou que para o Estado esses valores podem ser estabelecidos com apenas duas repetições por local de coleta. Nesse sentido, é primordial um planejamento prévio, de distribuição dos locais de amostragem, de maneira que os diversos compartimentos geomorfológicos, pedológicos e geológicos do Estado sejam representados.

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Local background concentrations of trace elements in soils: a case study in the Grand Duchy of Luxembourg

Cited by 97 publications

References 20 publications

Modelling suspended-sediment propagation and related heavy metal contamination in floodplains: a parameter sensitivity analysis

Modelling suspended-sediment propagation and related heavy metal contamination in floodplains: a parameter sensitivity analysis

Concentrations of Available Heavy Metals in Mediterranean Agricultural Soils and their Relation with Some Soil Selected Properties: A Case Study in Typical Mediterranean Soils

Valores de referência de qualidade para metais pesados em solos do Rio Grande do Norte

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