Ground based in situ observations of wet_only_sampler at Zingst (DE0009R). These measurements are gathered as a part of the following projects HELCOM and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: dibenzo_ah_anthracene in precip (mass_concentration_of_dibenzo_ah_anthracene_in_precipitation), op_DDD in precip (mass_concentration_of_op_dichlorodiphenyldichloroethane_in_precipitation), op_DDE in precip (mass_concentration_of_op_dichlorodiphenyldichloroethylene_in_precipitation), op_DDT in precip (mass_concentration_of_op_dichlorodiphenyltrichloroethane_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)