Ground based in situ observations of high_vol_sampler at Montseny (ES1778R). These measurements are gathered as a part of the following projects ACTRIS, EMEP, GAW-WDCA and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: aluminium in pm1 (mass_concentration_of_aluminium_in_pm1_in_air), ammonium in pm1 (mass_concentration_of_ammonium_in_pm1_in_air), ammonium in pm1 (mass_concentration_of_ammonium_in_pm1_in_air), antimony in pm1 (mass_concentration_of_antimony_in_pm1_in_air), arsenic in pm1 (mass_concentration_of_arsenic_in_pm1_in_air), barium in pm1 (mass_concentration_of_barium_in_pm1_in_air), bismuth in pm1 (mass_concentration_of_bismuth_in_pm1_in_air), cadmium in pm1 (mass_concentration_of_cadmium_in_pm1_in_air), calcium in pm1 (mass_concentration_of_calcium_in_pm1_in_air), cerium in pm1 (mass_concentration_of_cerium_in_pm1_in_air), chloride in pm1 (mass_concentration_of_chloride_in_pm1_in_air), chromium in pm1 (mass_concentration_of_chromium_in_pm1_in_air), cobalt in pm1 (mass_concentration_of_cobalt_in_pm1_in_air), copper in pm1 (mass_concentration_of_copper_in_pm1_in_air), iron in pm1 (mass_concentration_of_iron_in_pm1_in_air), lanthanum in pm1 (mass_concentration_of_lanthanum_in_pm1_in_air), lead in pm1 (mass_concentration_of_lead_in_pm1_in_air), lithium in pm1 (mass_concentration_of_lithium_in_pm1_in_air), magnesium in pm1 (mass_concentration_of_magnesium_in_pm1_in_air), manganese in pm1 (mass_concentration_of_manganese_in_pm1_in_air), nickel in pm1 (mass_concentration_of_nickel_in_pm1_in_air), nitrate in pm1 (mass_concentration_of_nitrate_in_pm1_in_air), nitrate in pm1 (mass_concentration_of_nitrate_in_pm1_in_air), phosphorus in pm1 (mass_concentration_of_phosphorus_in_pm1_in_air), potassium in pm1 (mass_concentration_of_potassium_in_pm1_in_air), rubidium in pm1 (mass_concentration_of_rubidium_in_pm1_in_air), selenium in pm1 (mass_concentration_of_selenium_in_pm1_in_air), sodium in pm1 (mass_concentration_of_sodium_in_pm1_in_air), strontium in pm1 (mass_concentration_of_strontium_in_pm1_in_air), sulphate_total in pm1, sulphate_total in pm1, thallium in pm1 (mass_concentration_of_thallium_in_pm1_in_air), thorium in pm1 (mass_concentration_of_thorium_in_pm1_in_air), tin in pm1 (mass_concentration_of_tin_in_pm1_in_air), titanium in pm1 (mass_concentration_of_titanium_in_pm1_in_air), uranium in pm1 (mass_concentration_of_uranium_in_pm1_in_air), vanadium in pm1 (mass_concentration_of_vanadium_in_pm1_in_air), zinc in pm1 (mass_concentration_of_zinc_in_pm1_in_air)