Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/10555
AuthorsMadonia, Paolo* 
Cangemi, Marianna* 
Galeazzi, Carla* 
Germani, Carlo* 
Parise, Mario* 
Favara, Rocco* 
TitlePreliminary geochemical characterization of groundwater drained by the Roman emissary of Lake Albano (Italy)
Issue Date6-Apr-2017
Series/Report no./76(2017)
DOI10.1007/s12665-017-6608-7
URIhttp://hdl.handle.net/2122/10555
KeywordsHydrochemistry
Isotopes
Lacustrine environment
Drainage tunnel
Volcano monitoring
Subject Classification04.08. Volcanology
AbstractMany lakes have been the object of hydraulic works in historical times, and the drainage tunnel carved by Romans for regulating the level of Lake Albano (Central Italy) can be considered as one of the most important historical hydraulic tunnels in the world. We sampled and analysed lake water, as well as groundwater samples from the Lake Albano emissary and another hydraulic work in the area (Ninfeo), which were analysed for their geochemical and isotopic composition in order to extract useful information for a possible reuse of the tunnel for anthropogenic purposes. The collected water samples exhibit common chemical features, typical of water–rock interaction processes in volcanic areas. Analyses of minor and trace elements confirmed the abovementioned results, indicating the presence of an atmospheric pollution source for heavy metals, although their concentrations are mostly below the Maximum Admitted Concentrations for drinking water issued by the World Health Organization. The chemical composition of dissolved gases indicated that both lake and groundwater are mainly enriched in CO2. Isotopic analyses suggested a clear volcanic origin for CO2 dissolved in lake water, while carbon dioxide in groundwater from the Roman emissary is produced by soil respiration. As further confirmed by Oxygen and Deuterium isotopic composition, the Roman emissary drains local suspended aquifers neither in contact with the lake water body nor influenced by volcanic activity, suggesting the opportunity to use the tunnel as a ‘‘zero-condition’’ monitoring site for individuating a possible future renewal of volcanic activity.
Appears in Collections:Papers Published / Papers in press

Files in This Item:
File Description SizeFormat 
Albano-EES.pdfManuscript file2.04 MBAdobe PDFView/Open
Show full item record

Page view(s)

31
Last Week
1
Last month
1
checked on Oct 20, 2017

Download(s)

35
checked on Oct 20, 2017

Google ScholarTM

Check

Altmetric