Ground based in situ observations of high_vol_sampler at Niembro (ES0008R). 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: calcium in pm10 (mass_concentration_of_calcium_in_pm10_in_air), magnesium in pm10 (mass_concentration_of_magnesium_in_pm10_in_air), nitrate in pm10 (mass_concentration_of_nitrate_in_pm10_in_air), nitrate in pm10 (mass_concentration_of_nitrate_in_pm10_in_air), potassium in pm10 (mass_concentration_of_potassium_in_pm10_in_air), sodium in pm10 (mass_concentration_of_sodium_in_pm10_in_air), sulphate_total in pm10 (mass_concentration_of_sulphate_total_in_pm10_in_air), sulphate_total in pm10 (mass_concentration_of_sulphate_total_in_pm10_in_air)