Technical Guidance Sheet (TGS) on normal levels of contaminants in English soils : lead (Pb) : technical guidance sheet TGS02, July 2012
Defra. 2012 Technical Guidance Sheet (TGS) on normal levels of contaminants in English soils : lead (Pb) : technical guidance sheet TGS02, July 2012. Defra, 4pp. (Soils R&D Project SP1008)Before downloading, please read NORA policies.
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Lead (Pb) is a metallic element naturally occurring in trace amounts in the Earth’s surface environment with concentrations in rocks averaging 15 mg/kg. Generally, acid igneous rocks (e.g. granites) are higher in Pb than basic ones (e.g. basalts) and concentrations in sedimentary rocks are variable with up to 70 mg/kg in some limestones. With a low melting point, Pb ore minerals are readily smelted and the metal is easily worked. Lead therefore has a long history of use in human activities. In England there are a number of historical lead mining areas (e.g. the Derbyshire Peak District) where there is a legacy of Pb contamination caused by mining and associated activities. Biologically it is considered as a non-essential element and toxic to man and animals through the food chain and soil dust inhalation or ingestion.
|Item Type:||Report (UNSPECIFIED)|
|Programmes:||BGS Programmes 2010 > Land Use, Planning and Development|
|Date made live:||16 Oct 2012 09:00|
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