Ground based in situ observations of high_vol_sampler at Birkenes II (NO0002R). These measurements are gathered as a part of the following projects EMEP_preliminary, CAMP, EMEP, NILU and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: arsenic in pm10 (mass_concentration_of_arsenic_in_pm10_in_air), cadmium in pm10 (mass_concentration_of_cadmium_in_pm10_in_air), chromium in pm10 (mass_concentration_of_chromium_in_pm10_in_air), cobalt in pm10 (mass_concentration_of_cobalt_in_pm10_in_air), copper in pm10 (mass_concentration_of_copper_in_pm10_in_air), lead in pm10 (mass_concentration_of_lead_in_pm10_in_air), nickel in pm10 (mass_concentration_of_nickel_in_pm10_in_air), vanadium in pm10 (mass_concentration_of_vanadium_in_pm10_in_air), zinc in pm10 (mass_concentration_of_zinc_in_pm10_in_air)