Comparison of DDE and PCB residues in the general diet and in human blood?Ontario 1986?87

Determinants ofp,p'-Dichlorodiphenyldichloroethane (DDE) Concentration in Adipose Tissue in Women from Five European Cities

“…Other data also support the fact that vegetables are an important source of dietary p,p'-DDE. 26 We found that the levels of p,p'-DDE in the adipose of women in Mdlaga (Spain) were greater than in women from the other study sites. In other recent studies, relatively high levels of p,p'-DDE in adipose tissue have also been found among Spaniard~.~'-~~ In 1971, use of DDT was restricted in Spain and in 1975, it was banned (i.e., not markedly later than in other European countries).…”

Neurotoxicity produced by developmental exposure to PCBs

“…By comparison, average whole blood PCB levels in the human general population range from 2-10 ppb [Frank et al, 1993;Kannan et al, 1994;Mes et al, 1984;reviews by WHO, 1993;Kocan et al, 1994]. Levels in serum were 4 ppb based on five congeners [Dar et al, 1992].…”

Biomarkers for Great Lakes priority contaminants: halogenated aromatic hydrocarbons.

“…Based on PCB concentrations found in domestically produced foods, it is estimated that the general population in North America will have PCB whole blood values in the range of 0 to 10 pg/kg (ppb) (13). In a series of samples collected in 1986 to 1987 from Ontario urban centers, 79% of 750 samples fell within this range (mean whole blood PCB of 9.2 ppb), indicating that the remaining 21% of samples (10-100 ppb) potentially had exposure from other sources (freshwater fish consumption, occupational) (14). The U.S. Centers for Disease Control and Prevention (CDC) has estimated the mean blood PCB level in the United States as 5 to 7 ppb.…”