Ground based in situ observations of mercury_TGM at Pallas (Matorova) (FI0036R) using Hg_mon. These measurements are gathered as a part of the following projects AMAP, EMEP and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: mercury_TGM in air (mass_concentration_of_total_gaseous_mercury_in_air)