A - Papers appearing in refereed journals
Zhao, F-J., McGrath, S. P. and Merrington, G. 2007. Estimates of ambient background concentrations of trace metals in soils for risk assessment. Environmental Pollution. 148 (1), pp. 221-229.
|Authors||Zhao, F-J., McGrath, S. P. and Merrington, G.|
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.
|Year of Publication||2007|
|Journal citation||148 (1), pp. 221-229|
|Digital Object Identifier (DOI)||doi:10.1016/j.envpol.2006.10.041|
|Open access||Published as non-open access|
|Funder project or code||SEF|
|Soil protection and remediation by chemical and biological approaches|
|Site-specific background concentrations for soils to be used for soil screening levels|
|Online||16 Jan 2007|
|Publication process dates|
|Accepted||19 Oct 2006|
|Publisher||Elsevier Sci Ltd|
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