SO4
                        CAM51_PD        CAM51_PI      difference     rel diff(%)
Sources (TgS/yr)          46.838          16.039          30.799          65.756
        emission           1.680           0.383           1.296          77.179
  gas-phase prod          17.712           5.087          12.625          71.281
   aq-phase prod          27.415           9.253          18.162          66.249
      nucleation           0.031           0.020           0.011          35.516
Sinks (TgS/yr)            46.514          14.618          31.896          68.573
         dry_dep           5.381           1.847           3.534          65.677
         wet_dep          41.133          12.771          28.362          68.952
Lifetime (days)            7.330           6.406           0.924          12.611
Burden (TgS)               0.551           0.162           0.388          70.505
    accumulation           0.526           0.150           0.376          71.514
          Aitken           0.013           0.008           0.005          39.773
          coarse           0.011           0.005           0.007          58.671