o 

 o 



o 



Q. 



!E 



Q. 



E 

 ca 



c 



0) 



o 



L. 



a> 



Q- 



Newark Bay 



120 



^ 100 



80 



m 60 



40 



20 



1 



o 



o 

 o o 



SQC=100 



Rho = 0.850" 



20 40 60 80 100 120 140 



Cumulative PCB TEQs, pg/g 



160 



Figure 39. Relationship between amphipod survival and the 

 concentrations of 2,3,7,8-TCDD toxicity equivalency quotients 

 for the co-planar PCB congeners in Newark Bay sediments. 



Newark Bay 



120 



O 100 



c 

 o 

 u 



o 



> 



E 



3 

 (/> 



■o 

 o 



Q. 



!E 

 o. 



E 

 « 





o 



80 1 O 



60 " 



40 



20 ' 



O O 



o 



o 



J_ 



Rho = -0.868" 

 p<0.001 



cP 



o 



SQG = 100 



o 

 o 



■Or 



100 200 300 400 500 



2,3,7,8-tcdd, pg/g 



i— i— i— i— •— f- 



600 700 



Figure 40. Relationship of amphipod survival to the 

 concentrations of 2,3,7,8-TCDD in Newark Bay sediment 

 samples. 



103 



