Ground based in situ observations of iron at Montseny (ES1778R) using high_vol_sampler. 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: iron in pm1 (mass_concentration_of_iron_in_pm1_in_air)