Ground based in situ observations of bulk_sampler at Yarner Wood (GB0013R). These measurements are gathered as a part of the following projects CAMP, EMEP and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: ammonium in precip (mass_concentration_of_ammonium_in_precipitation), ammonium in precip (mass_concentration_of_ammonium_in_precipitation), nitrate in precip (mass_concentration_of_nitrate_in_precipitation), nitrate in precip (mass_concentration_of_nitrate_in_precipitation)