Berti P R, Receveur O, Chan H M, Kuhnlein H V
Centre for Indigenous Peoples' Nutrition and Environment, Quebec, Canada.
Environ Res. 1998 Feb;76(2):131-42. doi: 10.1006/enrs.1997.3797.
Environmental contaminants such as organochlorines and heavy metals have been reported to bioaccumulate in Arctic and subarctic wildlife. The Indigenous Peoples in northern and Arctic Canada rely on local wildlife as an important food source, and it is thus hypothesized that they may have high intakes of these contaminants. Herein, an assessment of dietary exposure to selected organochlorines and heavy metals for Indigenous Peoples of the western Northwest Territories (NWT) is presented. Dietary data were collected from 1012 adults with 24-h recalls in 16 communities in the western NWT (Denendeh). A comprehensive survey of the literature, as well as in-house analysis, formed the basis of a large traditional food-contaminant database. By combining the dietary and contaminant data, dietary exposure to 11 chemical contaminants was calculated. Dietary exposure to chemical contaminants in Denendeh is generally low and there is little, if any, associated health risk. However there are specific contaminants in certain communities for which exposure on a single day approaches the tolerable daily intake levels. These situations are detailed and monitoring needs are described.
据报道，有机氯和重金属等环境污染物会在北极和亚北极野生动物体内生物累积。加拿大北部和北极地区的原住民依靠当地野生动物作为重要的食物来源，因此据推测，他们可能大量摄入了这些污染物。在此，对西北地区（NWT）西部原住民饮食中选定的有机氯和重金属暴露情况进行了评估。通过对西北地区西部（德内地区）16个社区的1012名成年人进行24小时饮食回顾，收集了饮食数据。对文献的全面调查以及内部分析构成了一个大型传统食物污染物数据库的基础。通过结合饮食和污染物数据，计算了对11种化学污染物的饮食暴露量。德内地区对化学污染物的饮食暴露总体较低，几乎不存在相关健康风险。然而，某些社区存在特定污染物，单日暴露量接近每日可耐受摄入量水平。文中详细说明了这些情况并描述了监测需求。
