Table 4.6 



Mean Leachate Tin Content (in ppb Sn) of 



Soil Lysimeters Before and After 



Grit Addition. 



Mean 



SD 



Mean 



SD 



1 

 2 

 3 

 4 

 5 

 6 



Topsoil B 

 A 



Clay B 

 A 



Sand B 

 A 



31 ppro 

 132 ppm 



31 ppm 

 132 ppti 



31 ppn 

 132 ppm 



8 

 8 

 5 

 4 

 2 

 3 



3 

 4 

 3 

 3 



2 

 3 



2 



2 



1 

 1 

 2 

 2 



2 



1 

 1 

 



1 

 1 



* After 5 weeks of flushing with distilled water. 

 ** After 16 weeks of flushing with distilled water. 



Source: Schatzberg, 1986. 



IV-9 



