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Abstract
Long range atmospheric and stream transport and oceanic currents drive the ecologic process of PCB deposition in the abiotic environment. In contrast short range transport via bioaccumulation–biomagnification up the food chain determines PCB congener profiles and concentrations and their adverse effects in biological organisms. Two research approaches to congeners, with potential to associate specific adverse human health effects with PCB concentrations in indigenous small populations, are summarized in this study. The field epidemiologic approach includes giving questionnaires to target population groups in conjunction with sampling for PCBs (and selected persistent organic pollutants and metals), in foods purchased or hunted and collected by Inuit peoples. Direct determination of contaminant levels in food sources and among individuals in selected comparative subpopulations is also presented.
#Disclaimer: The opinions and conclusions of this article are those of the individual authors and do not necessarily reflect those of their affiliated institutions.
Notes
#Disclaimer: The opinions and conclusions of this article are those of the individual authors and do not necessarily reflect those of their affiliated institutions.
aA traditional food system includes all of the plant and animal species that typically comprise the food available to a particular cultural group from its local natural resources and the accepted patterns of its use within that culture. This term also connotes understanding of the sociocultural meanings assigned to these foods, their acquisition, processing, the chemical composition of these foods, the way each food is used by age and gender groups within the culture, and the nutritional and health consequences of consuming this food.
