69 



CLIS REF: 1979-1985 



E 



Q. 



a. 



c 

 o 



c 



o 



c 

 o 



o 



>300 

 250-300 

 200-250 

 150-200 



] 

 3 



P 



N=94 (Zn, Cu) 

 N=52 (Cd) 





i 



100-150 



i 







I 



50-100 



^^^^^ 







p«iy#i#i«iay#jMii»jM 



<50 





20 40 60 80 



Percent of Samples 



100 



□ Zn 



Cu 



!Cd(x100) 



Figure 3-16. Trace metal (Zn, Cu, Cd) concentration frequency distribution of samples 



from the CLIS reference station, cumulated over the years 1979-1985. Note 

 units and change of scale relative to Figures 3-17 and 3-18. 



Sediment Capping of Subaqueous Dredged Material Disposal Mounds 



