[%] polar  GISS_PRE   KYU_PRE   LOA_PREUIO_CTM_PRUIO_GCM_PR  ULAQ_PRE   UMI_PRE   average

         SO4     51.55     52.60     53.12     52.55     43.59     49.28               50.45
          BC      2.49      2.54      2.42      2.23      2.83      3.21                2.62