TABLE 1 



Organochlorine concentrations (ng/g fresh wt.) in biota from the Bering and Chukchi Seas. 



HCB = hexachlorobenzene; a-HCH, y-HCH & |3-HCH = alpha, gamma & beta hexachlorocyclohexane; DDE. DDD & DDT = p.p'-DDE.DDD 

 & DDT; OXY = oxychlordane; cis-CHL = cis-chlordane; trans-CHL= trans-chlordane; trans-NON = trans-nonachlor; cis-NON = cis-nonachlor. 



TABLE 2 



Organochlorine concentration (ng/g dry wt.) in sediment from the Bering Sea and Chukchi Seas. 



Sediment 

 Layer Sampled 



Sta. 

 No. 



PCB- 



1242 



PCB- 



1254 



PCB- 



1260 



Total 

 PCB 



HCB a-HCH 7-HCH p-HCH OXY 



trans- 

 CHL 



cis- 

 CHL 



trans- 

 NON 



cis- 

 NON 



DDE DDD DDT 



UPPER 0- 

 UPPER 0- 

 HOMOG 

 UPPER 0- 

 HOMOG. 

 UPPER 0- 

 HOMOG 

 UPPER 0- 

 HOMOG. 

 HOMOG. 



1 CM 

 :CM 



0-10 CM 



:cM 



0-10 CM 



2 CM 

 0-10 CM 

 2 CM 

 0-10 CM 

 0-IOCM 



45 <6.7 



13 <6.60 



13 <3.30 



75 <7.70 



75 <2.99 



96 <6.61 



96 <2.96 



109 <7.30 



109 <3.80 



110 <5.20 



4.27 

 <5.93 

 <2.97 

 <6.91 

 <2.68 

 <5.94 

 <2.66 

 <6.56 

 <3.41 

 <4.67 



5.37 

 <6.62 

 <3.32 

 <7.72 

 <3.00 

 <6.63 

 <2.97 

 <7.32 

 <3.81 

 <5.22 



12.98 

 <19.2 

 <9.59 

 <22.3 

 <8.67 

 <19.1 

 <8.59 

 <21.2 

 <1 1,0 

 <15,1 



0.45 

 <0.20 

 <0.10 

 <0.23 

 <0.09 

 <0.20 

 <0.09 

 <0.22 

 <0.11 

 <0.16 



0.92 



<0.09 



0.24 



0.27 



0.12 



<0.09 



<0.04 



<0.10 



<0.05 



<0.07 



0.21 

 <0.09 

 <0.05 

 <0.11 

 <0.04 

 <0.09 

 <0.04 



0.15 

 <0.05 

 <0.07 



<0.2 

 0.22 

 0.12 



<0.04 

 0.04 



<0.03 

 0.04 



<0.03 



<0.02 

 0.04 



<0.01 

 <0.01 

 <0.01 

 0.05 

 <0.01 

 <0.01 

 <0.01 

 <0.01 

 <0.01 

 <0.01 



<0.3 

 <0.19 

 <0.10 

 <0.23 

 <0.09 

 <0.19 

 <0.09 

 <0.21 

 <0.11 

 <0.15 



<0.2 

 <0.18 



0.17 

 <0.21 

 <0.08 

 <0.18 

 <0.08 

 <0.20 

 <0.10 

 <0.14 



<0.1 

 <0.08 



0.18 

 <0.10 



0.13 

 <0.08 

 <0.04 

 <0.09 

 <0.05 

 <0.06 



<0.02 

 <0.04 

 <0.02 

 <0.04 

 <0.02 

 <0.04 

 0.02 

 <0.04 

 <0.02 

 <0.03 



0.95 

 <0.76 

 <0.38 

 <0.88 

 <0.34 

 <0.76 

 <0.34 

 <0.84 

 <0.44 

 <0.60 



0.66 

 <0.56 

 <0.28 

 <0.65 

 <0.25 

 <0.56 

 <0.25 

 <0.62 

 <0.32 

 <0.44 



3.49 

 0.64 

 <0.16 

 <0.37 

 <0.14 

 <0.32 

 <0.14 

 <0.35 

 <0.18 

 <0.25 



HCB = hexachlorobenzene; a-HCH. 7-HCH. (J -HCH = alpha, gamma & beta hexachlorocyclohexane; DDE. DDD. & DDT = p.p'-DDE.DDD 

 & DDT; OXY = oxychlordane; cis-CHL = cis-chlordane; trans-CHL = trans-chlordane; trans-NON = trans-nonachlor; 

 cis-NON = cis-nonachlor. 



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