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Carbon and ecological footprints as tools for evaluating the environmental impact of coal mine ventilation air

dc.contributor.authorDíaz Fernández, Eva 
dc.contributor.authorFernández García, Javier 
dc.contributor.authorOrdóñez García, Salvador 
dc.contributor.authorCanto Toimil, Noel 
dc.contributor.authorGonzález García, Albino
dc.identifier.citationEcological Indicators, 18(1), p. 126-130 (2012); doi:10.1016/j.ecolind.2011.11.009spa
dc.description.abstractCoal mines ventilation gases are an important source of methane emissions. Common 2 ventilation systems are designed to ensure safe working conditions in the shafts, leading to 3 huge ventilation gas flow rates. Traditionally, low attention has been paid to such emissions 4 because of their low methane concentration. However, it is necessary to take into account 5 that although the concentration of methane is very low (typically < 1 %), the volume of air 6 that ventilation systems move is large, and therefore these emissions constitute the largest 7 source of greenhouse gases from underground coal mines. 8 This work proposes the use of ecological and carbon footprints approaches as a tool for 9 determining the relative importance of these emissions in comparison to the other direct 10 and indirect environmental impacts from the coal mining activity. The study has been 11 performed in the main ventilations shafts of the mining company HUNOSA, located at NW 12 Spain (bituminous coal). Results indicate that ventilation air methane is a key fraction of 13 the total emissions of greenhouse gases releases in this activity (60-70 %)
dc.description.sponsorshipThis work was supported by the Research Fund for Coal and steel of the European Union (contract UE-10-RFCR-CT-2010-00004). Elena G. Ongallo (HUNOSA) is acknowledged by her contribution to this work
dc.format.extentp. 126-130
dc.relation.ispartofEcological Indicators, 18spa
dc.rights© 2012 Elsevier
dc.rightsCC Reconocimiento - No comercial - Sin obras derivadas 4.0 Internacional
dc.titleCarbon and ecological footprints as tools for evaluating the environmental impact of coal mine ventilation airspa
dc.typejournal article
dc.rights.accessRightsopen access

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© 2012 Elsevier
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