Girard M, Noël F, Dumont C
Cree Board of Health, Chisasibi (Qc) Canada.
Arctic Med Res. 1996 Apr;55(2):69-74.
James Bay Quebec Crees are exposed to methylmercury (MM) through fish consumption. Hair mercury concentrations were measured in women of child-bearing age and men and women 40 years of age and above in a small Cree community of James Bay (with traditionally low exposure to MM) before and after fishing expeditions to inland lakes where fish were contaminated with methylmercury. Median hair mercury concentrations in persons 40 years and above increased from 4.1 mg/kg to 9.9 mg/kg and the highest value from 17.4 to 47.2 mg/kg. A similar increase was seen after a second fishing expedition where the median hair concentration increased from 3.4 mg/kg to 7.2 mg/kg and the highest value from 17.7 to 49.9 mg/kg. Populations with traditionally low exposure to MM can become highly exposed with changes in sources or quantities of fish consumed.
魁北克詹姆斯湾的克里人通过食用鱼类接触到甲基汞（MM）。在前往内陆湖泊进行捕鱼探险之前和之后，对詹姆斯湾一个小型克里社区中育龄妇女以及40岁及以上的男性和女性测量了头发中的汞浓度，这些内陆湖泊中的鱼受到甲基汞污染（该社区传统上对甲基汞的接触较低）。40岁及以上人群头发汞浓度中位数从4.1毫克/千克增至9.9毫克/千克，最高值从17.4毫克/千克增至47.2毫克/千克。在第二次捕鱼探险后也出现了类似的增长，头发浓度中位数从3.4毫克/千克增至7.2毫克/千克，最高值从17.7毫克/千克增至49.9毫克/千克。传统上对甲基汞接触较低的人群，随着食用鱼类的来源或数量发生变化，可能会受到高度暴露。
