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

         SO4     46.40     55.57     46.76     61.27     63.31     53.06     50.26     59.09     54.47
          BC      5.64      4.44      7.10      4.04      3.69      4.76      5.53      4.12      4.92