Authors: Vasilakos, Ch.¹; Maggos, Th.²; Bartzis, J.³; Papagiannakopoulos, P.⁴

Source: Journal of Atmospheric Chemistry, Volume 52, Number 2, October 2005 , pp. 101-116(16)

Publisher: Springer

Abstract:

Volcanoes have been identified as an important natural source of sulfur compounds such as H₂S, CS₂, SO₂ and COS. The emission of volcanic sulfur compounds lead to the formation of sulfate aerosol and contribute to the acidity of precipitation.

Two weekly measuring campaigns have been performed in the non-erupting volcanic area of Sousaki, Korinthou, to determine the concentration levels of the above-mentioned compounds in the region, while meteorological parameters were also recorded.

The samplings have been performed during in a 24 h basis, covering two seasons of the year, a week in August 1998 and a week in January 1999. Reduced sulfur compounds were determined by a simple method of gas chromatography. Quality assurance procedure showed a very good precision and accuracy of the method utilized for the sulfur compounds determination.

In accordance with literature, H₂S was the dominant sulfur compound at the volcano area, while COS, and CS₂ didn't present significantly high values. Nevertheless, the concentration levels of the above pollutants are varying depending on the volcano magnitude and status (active, extinct).

Keywords: gas chromatography; meteorological data; sulfur compounds; volcano

Document Type: Research article

DOI: http://dx.doi.org/10.1007/s10874-005-8853-5

Affiliations: 1: Environmental Research Laboratory, National Center for Scientific Research, “DEMOKRITOS” 153 10 Aghia Paraskevi Attikis, P.O.B. 60228, Athens, Greece, Email: chvasil@ipta.demokritos.gr 2: Environmental Research Laboratory, National Center for Scientific Research, “DEMOKRITOS” 153 10 Aghia Paraskevi Attikis, P.O.B. 60228, Athens, Greece, 3: Department of Energy Resources Engineering, University of Western Macedonia, 51100, Kozani, Greece, 4: Department of Chemistry, University of Crete, Greece,

Publication date: 2005-10-01

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