Jjg metal/gm tissue dry weight 
100 
Ni 
10.0 
3 1 
1.0 - 
Cu 
3 4 
0 
Pb 
0 
I 
Cd 
-- 
13 4 
0 
Cr 
V 
3 -- 
3 4 
0 
Q; Laboratory held animals at time = 0 
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 
1000 
Zn 
0 3 
4 - 100 
10.0 
0.1 
.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 
