Ground based in situ observations of low_vol_sampler at Schauinsland (DE0003R). 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: chloride in pm25 (mass_concentration_of_chloride_in_pm2p5_in_air), nitrate in pm25 (mass_concentration_of_nitrate_in_pm2p5_in_air), nitrate in pm25 (mass_concentration_of_nitrate_in_pm2p5_in_air), sulphate_corrected in pm25 (mass_concentration_of_sulphate_corrected_for_seaspray_expressed_as_sulphur_in_pm2p5_in_air), sulphate_corrected in pm25 (mass_concentration_of_sulphate_corrected_for_seaspray_expressed_as_sulphur_in_pm2p5_in_air), sulphate_total in pm25 (mass_concentration_of_sulphate_total_in_pm2p5_in_air), sulphate_total in pm25 (mass_concentration_of_sulphate_total_in_pm2p5_in_air)