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Title: Forensic investigation of a chromium(VI) groundwater plume in Thiva, Greece

We conducted a forensic investigation with the aim of decoupling the contribution of geogenic and anthropogenic Cr(VI) sources in the wider area of Thiva. Groundwater and topsoil samples were collected from two Cr(VI) groundwater plumes of 160 μg/L and 75 μg/L. A series of evidence support the view that the origin of Cr(VI) detected in groundwater is mainly geogenic. These are: (a) the presence of Cr in topsoil of the wider area, (b) the moderate Cr(VI) groundwater concentrations, (c) the high Ni levels within the Cr(VI) plumes, (d) the predominance of Mn(IV), which is a prerequisite for Cr(III) oxidation to Cr(VI), and (e) the absence of co-contaminants. This study also revealed that, although both Cr(VI) plumes are clearly of geogenic origin, the plume with the elevated Cr(VI) values, in the north of Thiva town, exhibits also an anthropogenic component, which can potentially be attributed to the alkaline environment associated with the old uncontrolled landfill of Thiva and the industrial cluster located in this area.
 [1] ;  [1] ;  [2] ;  [3] ;  [1] ;  [1] ;  [1]
  1. National Technical Univ. of Athens, Zografou (Greece)
  2. Intergeo-Environmental Technology Ltd., Thessaloniki (Greece)
  3. Univ. of Connecticut, Storrs, CT (United States)
Publication Date:
OSTI Identifier:
Report Number(s):
Journal ID: ISSN 0304-3894
DOE Contract Number:
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Hazardous Materials; Journal Volume: 281; Journal Issue: C
Research Org:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Country of Publication:
United States
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; chromium; thiva; ultramafic/ophiolitic rock; groundwater; soil