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Estimates of ambient background concentrations of trace metals in soils for risk assessment

Zhao, F.J. ; McGrath, S.P. ; Merrington, G.

Environmental pollution (1987), 2007-07, Vol.148 (1), p.221-229 [Periódico revisado por pares]

Oxford: Elsevier Ltd

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Título:
Estimates of ambient background concentrations of trace metals in soils for risk assessment
Autor: Zhao, F.J. ; McGrath, S.P. ; Merrington, G.
Assuntos: Aluminum - analysis ; Ambient background concentration ; Analysis methods ; Applied sciences ; Cadmium - analysis ; Chromium - analysis ; Copper - analysis ; Earth sciences ; Earth, ocean, space ; Engineering and environment geology. Geothermics ; Environmental Monitoring - methods ; Exact sciences and technology ; Iron - analysis ; Multivariate Analysis ; Nickel - analysis ; Particle Size ; Pollution ; Pollution, environment geology ; Risk assessment ; Risk Assessment - methods ; Soil and sediments pollution ; Soil Pollutants - analysis ; Soils ; Trace Elements - analysis ; Trace metals ; Zinc - analysis
É parte de: Environmental pollution (1987), 2007-07, Vol.148 (1), p.221-229
Notas: ObjectType-Article-2
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Descrição: Site-specific or soil type-specific ambient background concentrations (ABCs) of trace metals in soils are needed for risk assessment. We investigated three different methods for estimating ABCs in soils using a dataset of 5691 soil samples from England and Wales. The concentrations of Co, Cr and Ni were strongly associated with Al and Fe, and multiple regressions explained 62–85% of their variation, and Al and Fe can therefore be used to predict ABCs for these metals. Soil texture had a major influence on the concentrations of Cd, Co, Cr, Cu, Ni and Zn, and the medians were 3–5 fold higher in clayey than in sandy soils. This was used to predict texture-specific ABCs. Lead concentration was higher in acidic peaty soils than in other soils. A probability graph method was used to estimate ABC for Pb in a population of relatively uncontaminated soils. Potential applications of ABCs are discussed. Ambient background concentrations of Cd, Co, Cr, Cu, Ni, Pb and Zn in surface soils are estimated using the soil inventory data for England and Wales.
Editor: Oxford: Elsevier Ltd
Idioma: Inglês

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Estimates of ambient background concentrations of trace metals in soils for risk assessment

Zhao, F.J. ; McGrath, S.P. ; Merrington, G.

Oxford: Elsevier Ltd

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