Risk evaluation of SO_2 emission at Vulcano island (Sicily)

摘要

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_2 is very dangerous when inhaled (especially when mixed with particles and water vapour). Typical output rates of SO_2 in the last few years oscillate in the order of few tons/day.