Table 2. Correlation of the Model Output with Observations at Mining Sites

          Case             DoBHEF        Hg emission         Reference       

a) Madeira River Region      100       extremely high      Pfeiffer et al,    
                                                                 1991         

b) Madeira River -           55             high           Pfeiffer et al,    
Rafts                                                            1989         

c) Poconé Region             100       extremely high        CETEM, 1991a     

d) Poconé Single Site        35          not so high         CETEM, 1989      

e) Poconé Single Site        25              low             CETEM, 1989      

f) Alta Floresta Region      100       extremely high        CETEM, 1991b     

g) Serra Pelada Single       40          not so high        author's visit    
Site                                                                          

h) Itaituba Region           100       extremely high         Malm, 1991