Influence Of Volcanic Passive Degassing On Air Quality In The Mt. Etna Area
Author(s)
A. Aiuppa, S. Bellomo, W. D’Alessandro, M. Ferm & M. Valenza
Abstract
Influence of volcanic passive degassing on air
quality in the Mt. Etna area
A. ~iuppa', S. ~ellornol, W. ~'~lessandro*, M. ~ e r r n ~ & M.
Valenza '
'~ipartimento CFTA, Universitir di Palermo, Italy
2 Istituto Nazionale di Geojkica e Vulcanologia, Sezione di Palermo, Italy
-'IVL Swedish Environmental Research Institute, Gothenburg, Sweden
Abstract
In this paper, we present the very first determinations of atmospheric
concentration of SOz, HCI and HF in rural locations of the Etnean area. Data
were gathered with a network of 18 passive samplers, distributed on the slopes of
the volcano at distances between 0.8 and 11.2 km from the summit craters and
exposed for a period of one month (June 2002). Data analysis reveals that acid
gas concentrations in air, ranging 3 -720 &m3 (SO*), i0.5-74 &m3 (HCl) and
<0.1-3.0 &m3 (HF), show an inverse relationship with distance fiom the
summit craters, reflecting the progressive dilution of volcanogenic volatiles by
air components. We also point out that gas c
Keywords
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