Reference : Regional occurence of greenhouses gases in groundwater: Initial results in shallow Be...
Scientific congresses and symposiums : Poster
Engineering, computing & technology : Geological, petroleum & mining engineering
http://hdl.handle.net/2268/183889
Regional occurence of greenhouses gases in groundwater: Initial results in shallow Belgian aquifers.
English
Hakoun, Vivien mailto [Université de Liège > Département ArGEnCo > Hydrogéologie & Géologie de l'environnement >]
Gesels, Julie mailto [Université de Liège > Département ArGEnCo > Hydrogéologie & Géologie de l'environnement >]
Tseng, Jean Hsiao-Chun mailto [National Sun Yat-sen University Kaohsiung (Taiwan) > Department of Oceanography > > > >]
Petrovic, Sandro mailto [Université de Liège > Département d'astrophys., géophysique et océanographie (AGO) > Océanographie chimique >]
Dassargues, Alain mailto [Université de Liège > Département ArGEnCo > Hydrogéologie & Géologie de l'environnement >]
Borges, Alberto mailto [Université de Liège > Département d'astrophys., géophysique et océanographie (AGO) > Océanographie chimique >]
Brouyère, Serge mailto [Université de Liège > Département ArGEnCo > Hydrogéologie & Géologie de l'environnement >]
Sep-2015
électronique
No
No
International
42nd IAH International Congress, AQUA2015
du 13 septembre au 18 septembre 2015
Marco PETITTA
Alessandro GARGINI
Daniela DUCCI
Fulvio CELICO
Others
Rome
Italie
[en] Regional groundwater hydrology ; Greenhouses gases ; Climate change
[en] Currently, the lack of robust, context-distributed subsurface greenhouses gases (GHG) concentrations data is a key bottleneck to reduce the uncertainty range of GHG groundwater input to continental surface water bodies such as rivers or lakes estimates. Carbon dioxyde (CO2), methane (CH4) and nitrous oxyde (N2O) are likely to be indirectly transferred to the atmosphere through groundwater discharge into continental surface water bodies. We aim to extend regional-scale estimates of indirect GHG emissions by screening, in numerous hydrogeological (such as alluvial, sandstone, chalk and limestone aquifers) and land use contexts (such as industrial and agricultural), the occurence of these gases. Here, we report and discuss CO2, CH4 and N2O concentrations from an initial survey conducted over selected sites (n= 40) within shallow (0-100 m depth) aquifers in Wallonia (Belgium) for the first time. The preliminary results obtained in this study show that the range of GHG concentrations varies between 5160 and 47544 ppm, 0 and 1064 nmol.L-1, as well as 1 and 5637 nmol.L-1 for the partial pressure of CO2, CH4 and N2O respectively. This new and unique regional dataset provides a first step in developping a refined understanding of favorable contexts for GHG occurence in groundwater which may be used to reduce the uncertainties related to indirect emissions of GHG through groundwater-surface water transfers.
Aquapôle - AQUAPOLE
Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS
Researchers ; Professionals ; General public
http://hdl.handle.net/2268/183889

File(s) associated to this reference

Fulltext file(s):

FileCommentaryVersionSizeAccess
Restricted access
VivienHakoun_GreenhousesGasesGroundwater_IAH2015.pdfAuthor postprint57.2 kBRequest copy

Bookmark and Share SFX Query

All documents in ORBi are protected by a user license.