Epidemiologic studies of PCB congener profiles in North American fish consuming populations

Author Name: 
Chiu, A., Beaubier, J., Chiu, J., Chan, L. and Gerstenberger, S.
Publication Date: 
Sunday, January 1, 2006
Private File Attachment: 
Two research approaches to congeners, with potential to associate specific adverse human health effects with PCB concentrations in indigenous small populations in British Columbia, Canada, are summarized in this study. These pollutants in the arctic were studied, and it was found that it would be impossible for the pollutants to come from vents in the sea floor under the arctic. This leads researchers to find that the contaminants are from regions closer to the equator. Culprits in the pollution scandal were discovered to be former Canadian and American military installations developed for World War II. PCB congener patterns in the physical environment of a microzone determine the profile-list of PCBs inside an organism, and along the food chain leading up to the chain’s highest consumer, often human beings. (Chiu, et. Al 2006) Details of how PCB’s rises up the food chain are included. This could be highly interesting as it shows a scientific process that could be used to do your own study on the ecology of your region. Chiu et. Al warns that ‘helping to protect human populations to a certain extent, we should be concerned about human disease risks from exposure to ‘‘wild foods’’ not covered by existing regulations or monitoring’ (Chiu et. Al. 2004). Such vigilance would be better possible by applying the scientific methods employed in this article. Food contaminant levels of PCB were recorded from blood samples, hard won because of the reluctance of the indigenous tribes to having their blood sampled. Therefore this is a restricted sample size. Subjects were studied by the type of the fish they enjoyed, if they were diabetic or not and specifically to Ojibwa Indians, many tables of data are added to explain the results. Data is correlated against Great Lakesman Wisconsin Indians. Conclusion: The article helps flesh out the lower west and northern indigenous peoples exposure to PCBs in fish. It would be of use to create a larger picture of Native health.