Two different cases of Cr(VI) contaminated ophiolitic aquifers are presented herein. The first is located at Vergina (Northern Greece), where the maximum Cr(VI) concentration measured was 64 μg/L, being one of the highest geogenic concentrations recorded globally in areas with similar geological background. The second case is located at Inofyta (Central Greece), a makeshift industrial area, where the maximum detected Cr(VI) concentration exceeds 10,000 μg/L, indicating clearly anthropogenic activities as the main source. Although for the Vergina aquifer, area-wide institutional measures and in some cases pump and treat systems might be sufficient to ensure a safe water supply for domestic and agricultural use, this is not the case for the contaminated aquifer of Inofyta. There a comprehensive remediation scheme should be properly implemented adopting, however, realistic remediation targets, that should also take into account the geogenic contribution to the high Cr(VI) groundwater concentrations measured.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1007/s00128-016-1985-2 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Loading of anionic surfactant on eco-friendly biochar and its applications in Cr(VI) removal: adsorption, kinetics, and reusability studies.
BMC Chem
January 2025
Chemistry Department, Faculty of Science, Alexandria University, Alexandria, Egypt.
Surfactant-modified biochar is a viable adsorbent for eliminating Cr(VI) from synthetic wastewater. The biochar obtained from the zea mays plant (BC) was tailored with sodium dodecyl sulfate (SDS) as an anionic surfactant forming SDS-BC adsorbent. Different controlling conditions have been evaluated including pH of the solution, biomass concentration, primary Cr(VI) concentration, time of adsorption, and temperature.
View Article and Find Full Text PDFPerformance, isotherm, kinetics and mechanism of simultaneous removal of Cr(VI), Cu(II) and F ions by CeO-MgO binary oxide nanomaterials.
Sci Rep
January 2025
Department of Physics, Faculty of Science, Islamic University of Madinah, Al-Jamia, Madinah, 42351, Saudi Arabia.
This study focuses on the synthesis of a novel Cerium-Magnesium (CeO-MgO) binary oxide nanomaterials by a simple co-precipitation process and used to remove harmful pollutants such as Cr(VI), Cu(II), and F. The morphology, phase, crystallite size, thermal stability, functional groups, surface area, and porosity of the synthesized nanomaterial were determined by using XRD, SEM, FTIR, TGA/DTA, and BET studies. The prepared nanomaterials showed adsorption selectivity of Cu(II) ≈ F> Cr(VI) with a high adsorption capacity of 84.
View Article and Find Full Text PDFOccurrence and enrichment mechanisms of groundwater hexavalent chromium in typical loess area of China.
Environ Pollut
January 2025
Xi'an Center of Mineral Resources Survey, China Geological Survey, Xi'an, China.
Understanding the geochemical mechanisms governing hexavalent chromium (Cr(VI)) in groundwater is essential for mitigating health risks. However, the processes driving Cr(VI) accumulation and migration in loess regions remain insufficiently understood. This study investigated the occurrence, release, and migration mechanisms of Cr(VI) across different groundwater environmental units (GEUs) in the south-central Loess Plateau, China.
View Article and Find Full Text PDFLung cancer mortality among aircraft manufacturing workers with long-term, low-level, hexavalent chromium exposure.
J Occup Environ Hyg
January 2025
ToxStrategies LLC, Mission Viejo, California.
Hexavalent chromium (CrVI) is known to cause lung cancer among workers exposed to high concentrations in certain historical industries. It is also a toxic air contaminant considered to pose a potentially significant cancer risk at comparatively low concentrations in urban air. However, very limited data currently exist to quantify risk at low-concentration occupational or environmental exposures.
View Article and Find Full Text PDFEvaluation of testing approaches for constituent leaching from electric arc furnace (EAF) slags.
J Environ Manage
January 2025
Department of Civil and Environmental Engineering, Vanderbilt University, PMB 351826, Nashville, TN, 37235-1826, USA. Electronic address:
Increased usage of electric arc furnace (EAF) slags as soil amendments and surface aggregates raises concerns regarding heavy metal release. However, no standardized leaching characterization approach exists for EAF slags and other industrial materials. This study compares test results for three EAF slags using several testing approaches: (i) total content analysis, (ii) single-batch extractions (i.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!