&SPECIES_PARAMS
 PSPECIES="SO4-aero        ",
 PCRAIN_AERO=1.0    ,
 PCSNOW_AERO=1.0    ,
 PCCN_AERO=0.9    ,
 PIN_AERO=0.1    ,
 PDENSITY=2000.00000    ,
 PDQUER=4.0E-07   ,
 PDSIGMA=0.3    ,
 /