Volcanic plume monitoring at mount Etna by diffusive(passive)sampling

This paper reports the use of diffusive tubes in determining HF, HCI, and SO2 in the volcanic plume of Mount Etna in an attempt to highlight the potential of this method in studying volcanoes. In a first application a network of 18 diffusive tubes was installed on Etna's flanks, aimed at evaluating the atmospheric dispersion of the volcanic plume on a local scale. Results showed a monotonic decrease in volatile air concentrations with distance from the craters (HF from 0.15 to <0.003 μmol m-3 , HCl from 2 to <0.01 μmol m -3, and SO2 from 11 to 0.04 μmol m -3 ), revealing the prevalently volcanic contribution. Matching of SO2/HCl and HCl/HF volatile ratios with contemporaneous measurements a…

ENVIRONMENTAL IMPACT OF MT. ETNA’S VOLCANIC EMISSIONS: TRACE METAL BULK-DEPOSITION

Survey on fluoride, bromide and chloride contents in public5 drinking water supplies in Sicily (Italy)

Geochemistry and mineralogy of travertine deposits of the SW flank of Mt. Etna (Italy): Relationships with past volcanic and degassing activity.

Soil and groundwater discharge of magmatic CO2 and He on south western Ischia Island (Central Italy)

Geochemistry and mineralogy of travertine deposits of the SW flanks of Mt. Etna: An indicator of past degassing activity

Volcanic soils of Mt. Etna (Italy): Relationships between fluorine absorption and soil characteristics.

Environmental impact of magmatic fluorine emission in the Mt. Etna area

The sustained and uninterrupted plume degassing at Mount Etna volcano, Southern Italy, represents the troposphere's most prominent natural source of fluorine. Of the ∼ 200 Mg of fluorine (as HFg) emitted daily by the volcano, 1.6 ± 2.7 Mg are deposited by wet and dry deposition. Fluorine-deposition via volcanic ash, here characterised for the first time, can be quite significant during volcanic eruptions (i.e. 60 Mg of fluorine were deposited during the 2001 eruption through volcanic ash, corresponding to ∼ 85% of the total fluorine deposition). Despite the fact that these depositions are huge, the fate of the deposited fluorine and its impact on the environment are poorly understood. We he…

The environmental impact of magmatic fluorine emissions in the Mt.Etna area.