Ground based in situ observations of NA at Cubuk II (TR0001R). 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: cadmium in aerosol (mass_concentration_of_cadmium_in_dry_aerosol_particles_in _air), lead in aerosol (mass_concentration_of_lead_in_dry_aerosol_particles_in _air), vanadium in aerosol (mass_concentration_of_vanadium_in_dry_aerosol_particles_in _air)