The Ojibwa Health Study: Fish Residue Comparisons for Lakes Superior,Michigan,and Huron

Abstract

The Ojibwa Health Study is a descriptive epidemiology study of six Ojibwa reservations in the Upper Great Lakes. Fish consumption habits, contaminant (mercury [Hg], polychlorinated biphenyls [PCBs], and other organochlorines [OCs]) residues in dietary fish and humans, and chronic disease outcomes currently are being documented. Four hundred and fifty questionnaires and approximately 200 biological samples had been collected as of December 1994. Fish collections from reservations included lake trout, walleye, lake whitefish, and lake herring from Lakes Superior (three sites), Michigan, and Huron. Hg and OC residue analyses have been completed for the fish composite samples. A preliminary examination of the data has revealed regional differences in the contaminant burdens of the fish. Lake Michigan and Lake Huron whitefish composite samples had approximately twice the OC concentrations of LakeSuperior whitefish samples. In general, the whitefish composite samples were far below the U.S. Food and Drug Administration or any state advisory limits for OC or Hg residues. Lake trout samples contained higher amounts of all residues than did the whitefish samples.

Keywords

2. Abbreviations: ATSDR Agency for Toxic Substances and Disease Registry BR Bad River BM Bay Mills GP Grand Portage GT Grand Traverse GLIFWC Great Lakes Indian Fish and Wildlife Commission KB Keweenaw Bay LdF Lac du Flambeau MeHg methyl mercury Hg mercury OC organochlorines PCBs polychlorinated biphenyls RC Red Cliff WDH Wisconsin Department of Health.

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References

Agency For Toxic Substances And Disease Registry (Atsdr) (1994). Toxicological Profile for Mercury (Update). U.S. Department of Health and Human Services, Public Health Services , ATSDR. TP-93/10. Atlanta, GA. p. 137.

Byrne, J.J. , Carbone, J.P. , and Hanson, E.A. (1987). "Hyperthyroidism and abnormalities in the kinetics of thyroid hormone metabolism in rats treated chronically with polychlorinated biphenyls and polybrominated biphenyl." Endocrinology 121 (2):520-527.

Dar, E. , Kanarek, M.S. , Anderson, M.S. , and Sonzogni, W. (1992). "Fish consumption and reproductive outcomes in Green Bay, Wisconsin." Environ. Res. 59:189-201.

Dellinger, J.A. (1993). Red Cliff Fish Consumption Study. Final Report to Great Lakes Protection Fund (GLPF.) Chicago, IL. February.

Dellinger, J.A. , Kmiecek, N. , Gerstenberger, S. , and Gnu, H. (1995a). "Mercury contamination of fish in the Ojibwa Diet: I. Walleye fillets and skin-on versus skin-off sampling." Water Air Soil Pollut. 80:69-76.

Dellinger, J.A. , Malek, L. , and Beattie, M.K. (1995b). "Mercury contamination of fish in the Ojibwa Diet: II. Sensory-evoked responses in rats fed walleye." Water Air Soil Pollut. 80:77-83.

Great Lakes Indian Fish And Wildlife Commission (Glifwc) (1993). Seasons of the Chippewa. Odanah, WI.

Hertzler, D.R. (1990). "Neurotoxic behavioral effects of Lake Ontario salmon diets in rats." Neurotox. Teratol. 12:139-143.

Humphrey, H.E.B. (1983). "Population studies of PCBs in Michigan residents ." In: PCBs: Human and Environmental Hazards ( F.M. D'Itri and M.A. Kamrin , eds.). Butterworth, Boston, MA. pp. 299-310.

10.

Knobeloch, T.J. , Ziarnik, M. , Anderson, H.A. , and Dodson, V. (1995). "Imported seabass as a source of mercury exposures: A Wisconsin case study." Envrion. Health Perspect. 103(6):604-607.

11.

International J Oint Commission (Ijc) (1991 ). Report to the International Joint Commission. Great Lakes Science Advisory Board. Revised December. IJC, U.S. and Canada, Windsor, Ontario, Canada.

12.

Ness, D.K. , Schantz, S.L. , Moshtaghain, J. , and Hansen, L.G. (1993). "Effects of perinatal exposure to specific PCB congeners on thyroid hormone concentrations and thyroid histology in the rat ." Toxicol. Lett. 68:311-323.

13.

Sonzogni, W. , Maack, C. , Gibson, T. , Degenhardt, D. , Anderson, H. , and Foire, B. (1991). "Polychlorinated biphenyl congeners in blood of Wisconsin sport fish consumers." Arch. Environ. Contam. Toxicol. 20:56-60.

14.

Wisconsin Department Of Health (Wdh) (1988 ). Minority Groups in Wisconsin: Measures in Health. Center for Health Statistics and Bureau of Community Health and Prevention, Division of Health, Wisconsin Department of Health and Social Services, Madison, WI. May.

15.

Wisconsin Department Of Health (Wdh) (1993 ). Health Guide for People Who Eat Sport Fish from Wisconsin Waters. PUBL-IE-019/ 4/93REV. Madison, WI.

16.

Wolff, M.S. , Thornton, J. , Fischbein, A. , Lilis, R. , and Selikoff, I.J. (1982). "Disposition of polychlorinated biphenyls in occupationally exposed persons." Toxicol. Appl. Pharmacol. 62:294-306.