ORGANIC MATTER IN CARBONACEOUS MINERAL WATERS OF THE SHMAKOVKA FIELD, FAR EAST, RUSSIA

Original data were obtained on the composition of organic compounds of medium volatility and their content in cold carbonaceous mineral waters of the Shmakovka deposit in Primorsky Kral. Using capillary gas chromatography-mass spectrometry and solid-phase extraction, a number of organic components were identified, forming 16 homological series. The predominance of aliphatic hydrocarbons (HC) (mainly normal alkanes and isoalkanes) in carbonaceous waters was revealed, accounting for more than half of the sum of all organic compounds. The remaining compounds are represented by oxygen-containing and aromatic compounds (the latter are insignificantly distributed). According to the molecular weight distribution of the saturated HCs, the organic matter (OM) in the studied waters is of bacterial origin. The presence of aromatic HCs is probably due to the action of the supercritical fluid CO. In addition, one of the Shmakovskoye field sites is likely to be under anthropogenic pressure due to the presence of Cl-HCs and high phthalate concentrations.