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: PCB_101 in precip (mass_concentration_of_polychlorinated_biphenyl_101_in_precipitation), PCB_118 in precip (mass_concentration_of_polychlorinated_biphenyl_118_in_precipitation), PCB_138 in precip (mass_concentration_of_polychlorinated_biphenyl_138_in_precipitation), PCB_153 in precip (mass_concentration_of_polychlorinated_biphenyl_153_in_precipitation), PCB_180 in precip (mass_concentration_of_polychlorinated_biphenyl_180_in_precipitation), PCB_28 in precip (mass_concentration_of_polychlorinated_biphenyl_28_in_precipitation), PCB_52 in precip (mass_concentration_of_polychlorinated_biphenyl_52_in_precipitation), acenaphthene in precip (mass_concentration_of_acenaphthene_in_precipitation), acenaphthylene in precip (mass_concentration_of_acenaphthylene_in_precipitation), benz_a_anthracene in precip (mass_concentration_of_benz_a_anthracene_in_precipitation), benzo_a_pyrene in precip (mass_concentration_of_benzo_a_pyrene_in_precipitation), benzo_b_fluoranthene in precip (mass_concentration_of_benzo_b_fluoranthene_in_precipitation), benzo_k_fluoranthene in precip (mass_concentration_of_benzo_k_fluoranthene_in_precipitation), chrysene in precip (mass_concentration_of_chrysene_in_precipitation), dibenzo_ah_anthracene in precip (mass_concentration_of_dibenzo_ah_anthracene_in_precipitation), gamma_HCH in precip (mass_concentration_of_gamma_hexachlorocyclohexane_in_precipitation), phenanthrene in precip (mass_concentration_of_phenanthrene_in_precipitation), pp_DDD in precip (mass_concentration_of_pp_dichlorodiphenyldichloroethane_in_precipitation), pp_DDE in precip (mass_concentration_of_pp_dichlorodiphenyldichloroethylene_in_precipitation), pp_DDT in precip (mass_concentration_of_pp_dichlorodiphenyltrichloroethane_in_precipitation), pyrene in precip (mass_concentration_of_pyrene_in_precipitation)