Next Article in Journal / Special Issue
Diavik Waste Rock Project: Evolution of Mineral Weathering, Element Release, and Acid Generation and Neutralization during a Five-Year Humidity Cell Experiment
Previous Article in Journal
Arsenic Adsorption onto Minerals: Connecting Experimental Observations with Density Functional Theory Calculations
Previous Article in Special Issue
Environmental Risk of Metal Mining Contaminated River Bank Sediment at Redox-Transitional Zones
Article Menu

Export Article

Open AccessArticle
Minerals 2014, 4(2), 241-256; https://doi.org/10.3390/min4020241

Effects of the November 2012 Flood Event on the Mobilization of Hg from the Mount Amiata Mining District to the Sediments of the Paglia River Basin

1
Department of Earth Sciences, University of Firenze, via G. La Pira 4, Firenze 50121, Italy
2
Department of Chemical and Geological Sciences, University of Cagliari, via Trentino 51, Cagliari 09127, Italy
*
Author to whom correspondence should be addressed.
Received: 28 February 2014 / Revised: 1 April 2014 / Accepted: 2 April 2014 / Published: 9 April 2014
(This article belongs to the Special Issue Mine Waste Characterization, Management and Remediation)
View Full-Text   |   Download PDF [13391 KB, uploaded 9 April 2014]   |  

Abstract

The Mount Amiata mining district (southern Tuscany, Italy) was, for decades, one of the world’s largest mercury (Hg) producing regions, where mining activity lasted until the 1980s. The Paglia River drains the eastern part of the district and is also the main western tributary of the Tiber River. Recent studies show that, still today, high total Hg contents severely affect the downstream ecosystems of these rivers. In November 2012, a major flood event occurred in the Paglia River basin, which drastically changed the river morphology and, possibly, the Hg concentrations. In the present work, stream sediment was sampled before and after the flood to evaluate possible changes in sediment total Hg concentrations as a consequence of this event. The comparison between pre- and post-flood Hg concentrations shows that Hg content increased up to an order of magnitude after the flood, suggesting that this event triggered Hg mobilization in the basin rather than its dilution. View Full-Text
Keywords: mercury; mining; Mount Amiata; sediment; flood; dam mercury; mining; Mount Amiata; sediment; flood; dam
Figures

Graphical abstract

This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Pattelli, G.; Rimondi, V.; Benvenuti, M.; Chiarantini, L.; Colica, A.; Costagliola, P.; Benedetto, F.D.; Lattanzi, P.; Paolieri, M.; Rinaldi, M. Effects of the November 2012 Flood Event on the Mobilization of Hg from the Mount Amiata Mining District to the Sediments of the Paglia River Basin. Minerals 2014, 4, 241-256.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Minerals EISSN 2075-163X Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top