Ground based in situ observations of bulk_sampler at Rucava (LV0010R). These measurements are gathered as a part of the following projects HELCOM, EMEP and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: arsenic in precip (mass_concentration_of_arsenic_in_precipitation), manganese in precip (mass_concentration_of_manganese_in_precipitation), nickel in precip (mass_concentration_of_nickel_in_precipitation)