Ground based in situ observations of filter_1pack at Churanov (CZ0005R). 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: copper in pm10 (mass_concentration_of_copper_in_pm10_in_air), nickel in pm10 (mass_concentration_of_nickel_in_pm10_in_air)