in 



C 



o 



•J3 



u 



<U 

 £> 



< 



<fl 



m 



50- 

 40- 

 30- 

 20 

 10 H 







-100 



Stal3 



Sta7 







Stall 



Stal 



Sta 4 



— I ' 1 ' 1 ' 1 ' 1 ' 1 1 1 ■ 1 



100 200 300 400 500 600 700 800 

 Benzo(a)pyrene, ppb dw 



c 

 o 

 •a 



nf 



u 

 u 

 <v 

 £> 

 < 



6S 



50" 

 40" 

 30" 

 20" 

 10- 







-100 



Stal3 



Sta7 



Sta11 sia4 



Stal 



100 200 



Benz(a)anthracene, ppb dw 



300 



— I 

 400 



50 i 



2 40- 



< 



§ 



m 



30 i 



20 



io -i 



o 



I 



Sta 7 



„ * Stall 

 Sta 4 



Sta 13 



1000 2000 3000 4000 



Total PAH, ppb dw 



5000 



Stal 



6000 



7000 



Figure 2. Correspondence between incidence of anaphase aberrations (mean ± standard deviation) 

 in Strongylocentrotus purpuratus embryos and concentrations of benzo(a)pyrene, benz(a)anthracene, 

 and tPAH in sediments. 



51 



