Ground based in situ observations of bulk_sampler at Lahemaa (EE0009R). 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: chromium in precip (mass_concentration_of_chromium_in_precipitation), mercury in precip (mass_concentration_of_mercury_in_precipitation), nickel in precip (mass_concentration_of_nickel_in_precipitation)