Trace Element Tracking in the Atmosphere of Mining and Mineral Processing Areas

A special issue of Minerals (ISSN 2075-163X). This special issue belongs to the section "Environmental Mineralogy and Biogeochemistry".

Deadline for manuscript submissions: closed (17 December 2021) | Viewed by 3367

Special Issue Editor


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Guest Editor
Géosciences Environnement Toulouse, Université de Toulouse, CNES, CNRS, IRD, UPS, 31400 Toulouse, France
Interests: environmental magnetism; particulate matter; heavy metals contamination; biosensors

Special Issue Information

Dear Colleagues,

Mining operations and mineral processing are some of the most notable anthropic activities in terms of the quantity of dust and aerosol emissions, the globally extensive area is affected, and the contents of potential toxic elements. Large quantities of dust containing trace elements could be released into the atmosphere during mining and other related operational processes. As a result, these activities pose a great threat to the population living around the mines or mineral processing sites and even to those further away, as fine particles could migrate across large distances.

In the mining area, airborne particles, including aerosols and dust, can play an important role in the transport of environmental contaminants, particularly those that have low volatility and low water solubility and remain attached to soil particles.

This Special Issue aims to bring together contributions on trace element compositions of airborne particles to address questions about

  • monitoring and spatialization of contaminants related to mining operations and mineral processing
  • active and historical sites
  • innovative approaches and multidisciplinary methodologies
  • source apportionment
  • spreading mechanisms of pollutants
  • means of trapping airborne particulate matter
  • sustainable solutions for minimising the release in air of trace elements

Dr. Melina Macouin
Guest Editor

Manuscript Submission Information

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Keywords

  • mining operations
  • mineral processing
  • trace elements
  • particulate matter
  • chemical composition
  • heavy metals contamination

Published Papers (1 paper)

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Research

27 pages, 6452 KiB  
Article
Mineralogical and Chemical Tracing of Dust Variation in an Underground Historic Salt Mine
by Aleksandra Puławska, Maciej Manecki and Michał Flasza
Minerals 2021, 11(7), 686; https://0-doi-org.brum.beds.ac.uk/10.3390/min11070686 - 26 Jun 2021
Cited by 5 | Viewed by 2536
Abstract
The aim of this study was to investigate the causes of the evolution of atmospheric dust composition in an open-to-public subterranean site (UNESCO-recognized historic mine) at increasing distances from the air intake. The role of the components imported with atmospheric air from the [...] Read more.
The aim of this study was to investigate the causes of the evolution of atmospheric dust composition in an open-to-public subterranean site (UNESCO-recognized historic mine) at increasing distances from the air intake. The role of the components imported with atmospheric air from the surface was compared with natural and anthropogenic sources of dust from inside the mine. Samples of deposited dust were directly collected from flat surfaces at 11 carefully selected sites. The morphological, mineralogical, and chemical characteristics were obtained using scanning electron microscopy (SEM), X-ray diffraction (XRD), and inductively coupled plasma spectroscopy (ICP). The study showed that the air in the underground salt mine was free of pollutants present in the ambient air on the surface. Most of the components sucked into the mine by the ventilation system from the surface (regular dust, particulate matter, gaseous pollutants, biogenic particles, etc.) underwent quick and instantaneous sedimentation in the close vicinity of the air inlet to the mine. The dust settled in the mine interior primarily consisted of natural geogenic particles, locally derived from the weathering of the host rock (halite, anhydrite, and aluminosilicates). This was confirmed by low values of enrichment factors (EF) calculated for minor and trace elements. Only one site, due to the tourist railroad and the associated local intensive tourist traffic, represented the anthropogenic sources of elevated concentrations of ferruginous particles and accompanied metals (P, Cr, Mn, Co, Ni, Cu, As, Mo, Cd, Sn, Sb, Pb, and W). The gravitational deposition of pollutants from these sources limits the effects of the emissions to the local range. The used methodology and the results are universal and might also apply to other mines, caves, or underground installations used for museums, tourists, or speleotherapeutic purposes. Full article
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