Environmental Impact of Volcanic Emissions

A special issue of Geosciences (ISSN 2076-3263). This special issue belongs to the section "Geochemistry".

Deadline for manuscript submissions: closed (25 July 2021) | Viewed by 3705

Special Issue Editors

Istituto Nazionale di Geofisica e Vulcanologia – Sezione di Palermo, Via Ugo La Malfa, 153, 90146 Palermo, Italy
Interests: geochemistry; volcanology; isotope geochemistry; hydrothermal systems; volcano monitoring; chemical weathering; aqueous geochemistry; volcanic emissions; environmental geochemistry; analytical methods for geochemistry; direct sampling of volcanic plumes
Departament Enginyeria Minera, Industrial i TIC, Universitat Politècnica de Catalunya, 08242 Manresa, Spain
Interests: ore deposits; stable isotopes; geochemistry; quantitative mineralogy; geometallurgy; environmental pollution
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Special Issue Information

Dear Colleagues,

Volcanoes emit large amounts of products onto the Earth’s surface as well as into the atmosphere. Based on their geochemical behavior, the volcanogenic elements move in several ways. The most refractory ones travel through solid particles and lava flows, semi-volatiles are usually abundant in volcanics but a significant amount are also emitted as gaseous chlorides and aerosol, and volatiles are mainly emitted as gaseous phases. Therefore, both violent eruptions, effusive activity, and quiescent degassing represent important sources of volcanogenic elements that affect the surroundings of the volcanic systems. The understanding of the processes governing the mobility and dispersion of volcanic elements is fundamental for constraining the environmental impact of volcanic emissions. This Special Issue aims to share scientific evidence, results, and ideas on the impact of volcanic emissions on the environment.

Dr. Marcello Liotta
Prof. Dr. Pura Alfonso
Guest Editors

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Keywords

  • Volcanic emissions
  • Environmental impact
  • Volcanogenic elements
  • Gaseous emissions
  • Volcanic ash

Published Papers (1 paper)

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Research

18 pages, 4500 KiB  
Article
Volcanic Gas Hazard Assessment in the Baia di Levante Area (Vulcano Island, Italy) Inferred by Geochemical Investigation of Passive Fluid Degassing
by Iole Serena Diliberto, Marianna Cangemi, Antonina Lisa Gagliano, Salvatore Inguaggiato, Mariana Patricia Jacome Paz, Paolo Madonia, Agnes Mazot, Maria Pedone and Antonino Pisciotta
Geosciences 2021, 11(11), 478; https://doi.org/10.3390/geosciences11110478 - 21 Nov 2021
Cited by 7 | Viewed by 2646
Abstract
In a volcanic area, the composition of air is influenced by the interaction between fluids generated from many different environments (magmatic, hydrothermal, meteoric, and marine). Any physical and chemical variation in one of these subsystems is able to modify the outgassing dynamic. The [...] Read more.
In a volcanic area, the composition of air is influenced by the interaction between fluids generated from many different environments (magmatic, hydrothermal, meteoric, and marine). Any physical and chemical variation in one of these subsystems is able to modify the outgassing dynamic. The increase of natural gas hazard, related to the presence of unhealthy components in air, may depend on temporary changes both in the pressure and chemical gradients that generate transient fluxes of gases and can have many different causes. Sometimes, the content of unhealthy gases approaches unexpected limits, without clear warning. In this case, an altered composition of the air can be only revealed after accurate sampling procedures and laboratory analysis. The investigations presented here are a starting point to response to the demand for a new monitoring program in the touristic area of Baia di Levante at Vulcano Island (Aeolian archipelago, Italy). Three multiparametric geochemical surveys were carried in the touristic area of Baia di Levante at Vulcano Island (Aeolian archipelago, Italy) in 2011, 2014, and 2015. Carbon dioxide (CO2) and hydrogen sulfide (H2S) are the main undesired components, usually present at the local scale. Anomalous CO2 and H2S outputs from soil and submarine bubbling vents were identified; the thermal anomaly of the ground was mapped; atmospheric concentrations of CO2 and H2S were measured in the air 30 cm above the ground surface. Atmospheric concentrations above the suggested limits for the wellbeing of human health were retrieved in open areas where tourists stay and where CO2 can accumulate under absence of wind. Full article
(This article belongs to the Special Issue Environmental Impact of Volcanic Emissions)
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