0.020 — 1 



(D 



0.016 



BLACKFOOT WPA - WET10 



Total recoverable concentration in water 

 Detection limit 



Q. 

 (/> 



E 



2 0.012 



c 

 g 



0) 



o 



c 

 o 

 O 



0.008 — 



0.004 



0.000 



As 



Pb 



B 



Ni 



Cd Se Cr Zn 



Cu 



