Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/9181
AuthorsCalabrese, S.* 
D'Alessandro, W.* 
TitleCharacterization of the Etna volcanic emissions through an active biomonitoring technique (moss-bags): Part 2 – Morphological and mineralogical features
Issue DateJan-2015
Series/Report no./119 (2015)
DOI10.1016/j.chemosphere.2014.08.087
URIhttp://hdl.handle.net/2122/9181
KeywordsVolcanic aerosols
Plume
Passive degassing
Sphagnum
Sulphate
Subject Classification01. Atmosphere::01.01. Atmosphere::01.01.07. Volcanic effects 
01. Atmosphere::01.01. Atmosphere::01.01.08. Instruments and techniques 
AbstractVolcanic emissions were studied at Mount Etna (Italy) by using moss-bags technique. Mosses were exposed around the volcano at different distances from the active vents to evaluate the impact of volcanic emissions in the atmosphere. Morphology and mineralogy of volcanic particulate intercepted by mosses were investigated using scanning electron microscopy (SEM) equipped with energy dispersive spectrometer (EDS). Particles emitted during passive degassing activity from the two active vents, Bocca Nuova and North East Crater (BNC and NEC), were identified as silicates, sulfates and halide compounds. In addition to volcanic particles, we found evidences also of geogenic, anthropogenic and marine spray input. The study has shown the robustness of this active biomonitoring technique to collect particles, very useful in active volcanic areas characterized by continuous degassing and often not easily accessible to apply conventional sampling techniques.
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