TABLE 3. CONTAMINANT RESIDUES MEASURED AND DETECTED IN NPMP 

 FRESHWATER FISH SAMPLES, 1967 THROUGH 1976-77 



^On the body of the table, + indicates that the contaminant was detected in 

 at least one sample and - indicates that none was detected. NA - not 

 analyzed. 



2Total PCB as Aroclor 1254, 1969-1971. 



^Lindane (y- benzene hexachloride) separated beginning 1976. 



^BHC as technical, 1969-74; as a - BHC beginning 1976. 



102 



