Ground based in situ observations of wet_only_sampler at Kosetice (NAOK) (CZ0003R). These measurements are gathered as a part of the following projects EMEP and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: anthracene in precip (mass_concentration_of_anthracene_in_precipitation), beta_HCH in precip (mass_concentration_of_beta_hexachlorocyclohexane_in_precipitation), inden_123cd_pyrene in precip (mass_concentration_of_inden_123cd_pyrene_in_precipitation)