Ground based in situ observations of high_vol_sampler at Auchencorth Moss (GB0048R). 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: 5-methylchrysene in pm10 (mass_concentration_of_5_methylchrysene_in_pm10_in_air), benzo_b_naphtho_21_d_thiophene in pm10 (mass_concentration_of_benzo_b_naphtho_21_d_thiophene_in_pm10_in_air), benzo_c_phenanthrene in pm10 (mass_concentration_of_benzo_c_phenanthrene_in_pm10_in_air), benzo_j_fluoranthene in pm10 (mass_concentration_of_benzo_j_fluoranthene_in_pm10_in_air), cholanthrene in pm10, dibenzo_ac_anthracene in pm10 (mass_concentration_of_dibenzo_ac_anthracene_in_pm10_in_air), dibenzo_al_pyrene in pm10 (mass_concentration_of_dibenzo_al_pyrene_in_pm10_in_air)