Gas chromatographic analysis of the vapours and gases discharged from the thermal fields of Kamchatka

Volatile organic compounds in solfataric gases

“…In thd air above the solfataric fields, we detected a large number of reactive organic compounds, such as aldehydes, diene hydrocarbons, and nitriles. The possibility of the formation of C4-C5 diene hydrocarbons and aldehydes from methane was shown in modeling experiments, with the simplest aldehydes also found to exist in water condensates from geothermal sources on Kamchatka (Bondarev and Porshnev, 1980;Bondarev et al, 1982).…”

“…There have been reports, for instance, about the presence of light Cl--C 6 hydrocarbons in fumarolic gases of the volcano on the Lipari Islands (Chaigneau and Conrad, 1970). Later, these hydrocarbons were detected in magmatic gases and emissions of hydrothermal sources on Kamchatka (Markhinin et al, 1975;Mukhin et al, 1978;Lebedev and Dekusar, 1980;Bondarev et al, 1982). Investigation of the ash collected in the volcanic eruptions on Kamchatka and Mount St. Helens in the U.S.A. revealed the presence of sorbed low-volatile organic compounds such as ClsuC40 hydrocarbons, amino acids, PAH, etc.…”