Risk Evaluation Of SO2 Emission At Vulcano Island
(Sicily)
Author(s)
M.T. Pareschi & M. Ranci
Abstract
Risk evaluation of SOi emission at Vulcano island
(Sicily)
M.T. Pareschi, M. Ranci
Email: ranci@dst.unipi.it
Abstract
The island of Vulcano (Aeolian Archipelago, north of Sicily) is site of an intense fumarolic
and hydrothermal activity. The main fumaroles, located on the northern ridge of La Fossa
crater, emit essentially water vapour, carbon dioxide, sulphurous components and other minor
compounds. In particular, SO: is very dangerous when inhaled (especially when mixed with
particles and water vapour). Typical output rates of SO: in the last few years oscillate in the
order of a few tons/day.
SO: concentrations in the air over the island were estimated by numerical codes. Simulations
were done using a 3D mesoscale meteorological model for complex terrain. Those were
performed for no wind synoptic condition, which is the most significant in terms of hazard.
Flow model outputs were then used by a Lagrangian particle model to simulate the dispersion
of the gas.
Risk scenarios are estim
Keywords
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