Abstract
Since 1982 the Cree Board of Health and Social Services of James Bay (Quebec, Canada) has taken samples of hair from Cree men and women in the course of the methylmercury (MeHg) surveillance program. As a measure of foetal exposure, samples of hair of the mother are taken at the beginning of pregnancy and shortly after birth (to determine exposure at birth) and a blood sample is taken from the umbilical cord blood of the newborn. Of the 2360 births between 1983 and 1991, 25% had all three samples taken, but there was not a single sample for 25% of the births. From 1983–1991, the concentrations of mercury (Hg) at the time of conception, at the time of birth and in the umbilical cord have decreased progressively. There is no relationship between Hg in the umbilical cord blood and the weight of the newborn. As is to be expected there is a relationship between the maternal hair concentration at birth and umbilical cord blood Hg concentration at birth. The relationship is the following: Hg cord blood = 8.53+.88xHg maternal blood equivalent {r=0.623, 95% CI(r) [0.770, 0.769] p<0.001}.
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References
Amin-Zaki, L. Elhassani, S. Majeed, M. A. Clarkson, T.W. Doherty, R.A.: 1979,Am J Dis Child 133, 172–177.
Dumont C., Kosatsky T.: 1989,Excess and Deficiency of Trace Elements in Relation to Human and Animal Health, The Norwegian Academy of Science and Letters, 109–133.
Farran, J.P., Brissette, D., Moncion, L., Chartrand, A.: 1981,Journal of Analytical Toxicology 5 Jan.–Feb.
Hansen, J.C.: 1990,Arch Environ Health 45–6, 355–358.
Kershaw T.G., Clarkson T.W., Dhair P.: 1980,Archives of Envionmental Health 35, 28–36.
Kjellström T., Kennedy P., Wallis S., Mantell C.: 1986,Physical and mental development of children with prenatal exposure to mercury from fish Stage 1: Preliminary tests at age 4, National Swedish Environment Protection, 1–96.
Magos L.: 1971,Analyst 96, 843–853.
Marsh D.O., Clarkson T.W., Cox C., Myers G.J., Amin-Zaki L., Al-Tirit.: 1987,Arch Neurol 44, 1017–1022.
Mckeown-Eyssen G.E., Ruedy J., Neims: 1983Am J of Epidemiol. 118:4, 470–479.
National Health and Welfare Canada: 1984,Methylmercury in Canada
Noël, F.: 1989,Manuel de Surveillance de l'Exposition au Mercure Méthylique, Cree Board of Health and Social Services of James Bay.
Ong Cnet al: 1993,Biometals,6, 61–66.
Penn, AF: 1978,The distribution of Mercury, Selemium and Certain Heavy metals in major fish species from northern Quebec, Report prepared for Fisheries and Environment Canada.
Sager P.R., Clarkson T.W., Nordberg G.F.: 1986,Reproduction and developmental toxic effects of metals, In: Friberg L, Nordberg GF, Vouk VB, ed. Handbook on the toxicology of metals, 408ff.
Tsubaki T., Hirota K., Shirakawa K., Kondo K., Sato T.: 1977,Minamata Disease — Methylmercury poisoning in Minamata and Niigata Japan., Kodansha Ltd, 1–313.
Verdon, R.et al: 1992,Les enseignements de la Phase I du Complexe La Grande, ACFAS.
Weinstein, M.et al: 1987,Mercury and the Chisasibi Fishery, Crée Regional Authority, Val d'Or Quebec.
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Girard, M., Dumont, C. Exposure of James Bay Cree to methylmercury during pregnancy for the years 1983–91. Water Air Soil Pollut 80, 13–19 (1995). https://doi.org/10.1007/BF01189648
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DOI: https://doi.org/10.1007/BF01189648