Table 1.- Estimated Hg Emissions from the Amazonian Biomass During Deforestation

                        Average       Hg       Hg release    Hg released  
       Biomass           (t/ha)      (ppm)     efficiency      (g/ha)     
                                                   (%)                    

  Above ground wood       260         0.05         90           11.7      

 Above ground leaves       9          0.05         90            0.4      

 Above ground roots        20         0.05         90            0.9      

 Below ground roots        35         0.05         20            0.4      

    Fallen trunks          16         0.05         90            0.7      

        Humus              11         0.3          20            0.7      

 Soil organic matter       47         0.3          20            2.8      

        Total             398                                   17.6