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Physicochemical composition of wastes and co-located environmental designations at legacy mine sites in the south west of England and Wales: Implications for their resource potential
Authors
ASTM
ASTM
+72 more
Atlantic Consultants
Ballesteros
Barnatt
Batty
Bloodworth
Bradshaw
BRIG
BRIG
Welsh Assembly Government, Countryside Council for Wales Cadw
Conesa
Cornwall AONB
Countryside Council for Wales
Countryside Council for Wales
Countryside Council for Wales
Cundy
D.E. Sinnett
D.J. Sapsford
DCLG
DEFRA
Defra
Douglas
Edwards
English Heritage
Environment Agency
Environment Agency
Environment Agency
Environment Agency
Environment Agency
Environment Agency
Environment Agency
EPA
Excal
Freeman
Gaston
Historic England
Historic England
Historic England
Howard
Howley
Hudson-Edwards
Jarvis
JNCC
Jones
Leštan
Lush
Mayes
McLain
Mighanetara
Mullinger
Natural England
Natural England
Natural Resources Wales
P.J. Cleall
Pettit
Plumlee
R.A. Crane
RCAHMW
RCAHMW
RCAHMW
RCAHMW
Reinus
Rodwell
Schlee
Seidel
Selman
Swanwick
Tamar Valley AONB
UNESCO
Wang
Welsh Government
Williams
Williams
Publication date
1 August 2017
Publisher
'Elsevier BV'
Doi
Cite
Abstract
© 2016 This work examines the potential for resource recovery and/or remediation of metalliferous mine wastes in the south west of England and Wales. It does this through an assessment of the physicochemical composition of several key metalliferous legacy mine waste piles and an analysis of their co-location with cultural, geological and ecological designations. Mine waste samples were taken from 14 different sites and analysed for metal content, mineralogy, paste pH, particle size distribution, total organic carbon and total inorganic carbon. The majority of sites contain relatively high concentrations (in some cases up to several % by mass) of metals and metalloids, including Cu, Zn, As, Pb, Ag and Sn, many of which exceed ecological and/or human health risk guideline concentrations. However, the economic value of metals in the waste could be used to offset rehabilitation costs. Spatial analysis of all metalliferous mine sites in the south west of England and Wales found that around 70% are co-located with at least one cultural, geological and ecological designation. All 14 sites investigated are co-located with designations related to their mining activities, either due to their historical significance, rare species assemblages or geological characteristics. This demonstrates the need to consider the cultural and environmental impacts of rehabilitation and/or resource recovery on such sites. Further work is required to identify appropriate non-invasive methodologies to allow sites to be rehabilitated at minimal cost and disturbance
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