100 



(U 



>» 



T3 



a> 



W 



E 

 o> 

 \ 



o 

 «) 



E 



en 



10.0 - 



Ni 



3 1 

 4 



Cu 



3 4 



Pb 



i-' 



I 







Cd 



i 34 



Cr 



34 



V 



4 



3-- 



Q: Laboratory held onimols at time = 



3: Animals held at Sta. 3, Fig. 3-1 for 



3 week exposure 



4: Animals held at Sta. 3, Fig. 3-1 for 



4 week exposure 



Zn 



34 _ 



1000 



100 



10.0 



Note: Bar lines, when present, indicate one standard deviation on either side 

 of the mean; otherwise total range is indicated. 



Figure 3-5. Metal levels in Mytilus edulis indicating uptake from 

 time=0 to time=4 weeks, Narragansett Bay, Rl, 

 September-October 1976. 



33 



