Table 5. Aroclor 1254 bioconcentration factors (BCF) 

 for selected species of whole aquatic organisms. 



Ecosystem, organism, 

 exposure duration 

 in days, (tissue) 



Aroclor 1254 

 concentration 

 in medium 

 (ug/1 ) 



BCF 



Reference' 



1.1 

 punctipennis 

 1.3 

 1.3 



Freshwater 

 Invertebrates 



Daphnid, Daphnia magna 



4 (wholeT^ 

 Phantom midge, Chaoborus 



4 (whole) 

 14 (whole) 

 Scud, Gatranarus pseudolimnaeus 



4 (whFfT) nr 



21 (whole) 1.6 



Mosquito larvae, Culex tarsalis 



4 (whole) 1.5 



Crayfish, Orconectes nais 

 4 (whole! 1.2 



1.2 

 Palae monetes kodiakensis 

 175 



21 (whole) 



Glass shrimp, 



4 (whole) 



21 (whole) 



1.3 



Protozoan, Tetrahymena pyriformis 

 4 (whole) 1.0 



Vertebrates 



Fish 

 Cichlid, Cichlasoma facetum 

 (spleerT) isotope 



3 

 3 

 3 

 3 



(fins) 



(liver) 



(muscle) 



Marine 



47,000 



23,000 

 25,000 



24,000 

 27,000 



18,000 



1,700 

 5,100 



12,000 

 17,000 



60 



NAS 1979 



EPA 1980 



Invertebrates 



American oyster, Crassostrea virginica 



168 (soft partsl ^0 85,000 



Ernst 1984 



45 



