Organochlorine compounds in Norwegian human fat and milk.

Analyses were carried out in 1975/76 of samples of human, perirenal fatty tissue and 45 samples of human milk with regard to persistent organochlorine compounds. A corresponding investigation was carried out in 1969/70. A comparison of the results suggests that a decrease in the content of DDT and its metabolites occurs. The PCB content showed a significant increase as compared with 1969/70. HCB levels of approx. 0.25 ppm and 0.0054 ppm were demonstrated in fatty tissue and in human milk, respectively. Concentrations of DDT plus metabolites, PCB and HCB in older people were significantly higher than those found in younger subjects.