Technical Guidance Sheet on normal levels of contaminants in English soils : Arsenic (As) : technical guidance sheet TGS01, July 2012
Defra. 2012 Technical Guidance Sheet on normal levels of contaminants in English soils : Arsenic (As) : technical guidance sheet TGS01, July 2012. DEFRA, 4pp. (Soils R&D Project SP1008)Before downloading, please read NORA policies.
Normal levels of contaminant concentrations in soils are referred to in the contaminated land Statutory Guidance for the Part 2A regime Defra 2012. This Technical Guidance Sheet (TGS) gives an indication as to what arsenic concentrations can be expected in soils based on results from samples systematically collected across England. Normal Background Concentrations (NBCs) can be used along with other criteria (e.g. site investigation data and risk assessments) to help decide whether land is contaminated land as defined by Part 2A, on a site-by-site basis. The NBCs are not intended to be a tool to be utilised when undertaking works via the planning regime. They are contaminant concentrations that are seen as typical and widespread in topsoils (depth 0 – 15 cm) and include contributions from both natural and diffuse anthropogenic sources. When using this Guidance Sheet, please refer to the section on ‘Using Normal Background Concentrations’ at the end, the Supplementary Information, and the revised Part 2A Statutory Guidance.
|Item Type:||Report (UNSPECIFIED)|
|Programmes:||BGS Programmes 2010 > Land Use, Planning and Development|
|Date made live:||15 Oct 2012 13:24|
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