Hydrogen concentration monitoring in subsoil air on tectonic faults on the territory adjacent to NPP site

Specific features of the process of degassing along tectonic faults, hydrogen escape and its monitoring as one of geodynamics indicators supplementing the base of information for controlling suffosion-karst processes and seismic monitoring of especially important objects in the platform regions are examined. Certain advantages of monitoring of hydrogen concentrations performed for the purpose of evaluation of seismic and geodynamic conditions in the region of NPP site per se and surrounding its location are indicated. Results are presented of field measurements of hydrogen concentrations performed along the path transverse to the line of tectonic fault. It is demonstrated that subsoil hydrogen concentrations within the zone of tectonic fault take extreme values.