Physical properties of pyroclastic density currents: relevance, challenges and future directions

TJ Jones, F Beckett, B Bernard, ECP Breard… - Frontiers in Earth …, 2023 - frontiersin.org
Pyroclastic density currents (PDCs) are hazardous and destructive phenomena that pose a
significant threat to communities living in the proximity of active volcanoes. PDCs are ground …

[HTML][HTML] Leaching tests reveal fast aluminum fluoride release from ashfall accumulated in La Palma (Canary Islands, Spain) after the 2021 Tajogaite eruption

J Sánchez-España, MP Mata, J Vegas… - Journal of Volcanology …, 2023 - Elsevier
Leaching tests conducted on fresh ashfall samples taken soon after the onset of the 2021
Tajogaite eruption occurred at the Northwest flank of the Cumbre Vieja Volcanic Ridge in La …

Drivers of crop impacts from tephra fallout: Insights from interviews with farming communities around Tungurahua volcano, Ecuador

N Ligot, A Guevara, P Delmelle - Volcanica, 2022 - jvolcanica.org
Agriculture is an economic and social pillar for the least developed countries. When these
regions host volcanoes that exhibit explosive behaviour, a serious risk for agricultural …

Long-range transport of air pollutants increases the concentration of hazardous components of PM in northern South America

MP Velásquez-García, KS Hernández… - Atmospheric …, 2024 - acp.copernicus.org
Long-range transport (LRT) of air pollutants from a range of sources can substantially
enhance background pollution levels, especially in urbanized regions, which can …

Surface acid alteration of juvenile Andean pyroclastic rocks: effect of glass composition on the development of surface fluoride-bearing minerals

JA Vila, GL Bia, S Bengió, C Balbis, L Borgnino - Chemical Geology, 2025 - Elsevier
During eruption, sulphur dioxide gas interacts with glass shards, favouring the formation of
sulphuric acid (H 2 SO 4) aerosols and coatings enriched in hazardous elements such as …

Element mobility related to rock weathering and soil formation at the westward side of the southernmost Patagonian Andes

B Klaes, G Wörner, S Thiele-Bruhn, HW Arz… - Science of The Total …, 2022 - Elsevier
Rock weathering and pedogenesis are fundamental processes for element mobility in
terrestrial bio-geochemical cycles and for the regulation of primary productivity in adjacent …

Minerogenic dust and human health

MNV Prasad - Medical Geology: En route to One Health, 2023 - Wiley Online Library
Abandoned mines pose human health risks. Inhaling minerogenic dust due to occupation is
a health hazard. Naturally occurring radioactive materials are of human health concern …

Quantitative analysis of persistent volcanic fluoride risk reveals differential exposure pathways for adults and children downwind of Masaya Volcano, Nicaragua

J Calkins, P Delmelle - Bulletin of Volcanology, 2021 - Springer
Volcanoes in a persistent state of open-vent degassing can contaminate air, water, soil, and
vegetation with fluoride. People living in their shadow are exposed to this substance via …

Assessing the influence of long-range transport of aerosols on the PM2.5 chemical composition and concentration in the Aburrá Valley

MP Velásquez-García, KS Hernández… - …, 2024 - egusphere.copernicus.org
Assessing long-range transport (LRT) of pollutants recognizes that multiple sources of
varying scale and location can impact air quality. In the Aburrá Valley, Colombia, and other …

Fluorine speciation and origin of Early-Middle Triassic bentonite deposits in Sichuan Basin, South China

Y Lin, M Zheng, Y Zhang, E **ng - Frontiers in Earth Science, 2023 - frontiersin.org
Fluorine (F) is one of the most important environmentally harmful elements released by
volcanic activity, and the bentonite deposits that formed from volcanic ashes are potentially …