[%] polar    GISS_B    LSCE_B    ULAQ_B     LOA_B   MPI_HAM UIO_CTM_B UIO_GCM_B     UMI_B   average

         SO4     55.80     57.40     47.79     61.97     62.09     49.32     58.08     61.02     56.68
          BC      4.96      4.13      8.71      3.89      3.65      4.92      4.85      3.74      4.86