Ground based in situ observations of bulk_sampler at Pedersker (DK0020R). These measurements are gathered as a part of the following projects HELCOM, CAMP and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: precipitation_amount in precip (lwe_thickness_of_precipitation_amount), arsenic in precip (mass_concentration_of_arsenic_in_precipitation), cadmium in precip (mass_concentration_of_cadmium_in_precipitation), chromium in precip (mass_concentration_of_chromium_in_precipitation), copper in precip (mass_concentration_of_copper_in_precipitation), lead in precip (mass_concentration_of_lead_in_precipitation), nickel in precip (mass_concentration_of_nickel_in_precipitation), zinc in precip (mass_concentration_of_zinc_in_precipitation)