Ground based in situ observations of high_vol_sampler at High Muffles (GB0014R). These measurements are gathered as a part of the following projects CAMP and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: anthanthrene in pm10 (mass_concentration_of_anthanthrene_in_pm10_in_air), benzo_a_pyrene in pm10 (mass_concentration_of_benzo_a_pyrene_in_pm10_in_air), benzo_e_pyrene in pm10 (mass_concentration_of_benzo_e_pyrene_in_pm10_in_air), benzo_ghi_perylene in pm10 (mass_concentration_of_benzo_ghi_perylene_in_pm10_in_air), benzo_k_fluoranthene in pm10 (mass_concentration_of_benzo_k_fluoranthene_in_pm10_in_air), chrysene in pm10 (mass_concentration_of_chrysene_in_pm10_in_air), coronene in pm10 (mass_concentration_of_coronene_in_pm10_in_air), cyclopenta_cd_pyrene in pm10 (mass_concentration_of_cyclopenta_cd_pyrene_in_pm10_in_air), dibenzo_ah_pyrene in pm10 (mass_concentration_of_dibenzo_ah_pyrene_in_pm10_in_air), inden_123cd_pyrene in pm10 (mass_concentration_of_inden_123cd_pyrene_in_pm10_in_air), perylene in pm10 (mass_concentration_of_perylene_in_pm10_in_air)