Dabeka R W, McKenzie A D
Health and Welfare Canada, Health Protection Branch, Ottawa, ON.
J AOAC Int. 1995 Jul-Aug;78(4):897-909.
During the period 1986-1988, foods were purchased at the retail level in 5 Canadian cities and, for each city, prepared for consumption and combined into 113 composites and 39 composite subsets. Lead and cadmium were determined in all the samples; fluoride, in samples from Winnipeg; and cobalt and nickel, in samples from Montreal. Means and ranges of concentrations (ng/g) found in individual samples were lead, 23.2 (< 0.4-523); cadmium, 9.96 (< 0.02-167); fluoride, 325 (11-4970); nickel, 196 (< 0.6-2521); and cobalt, 9.4 (< 0.3-75.7). Estimated dietary intakes (microgram/day) of the elements over all ages and sexes were lead, 24; cadmium, 13; fluoride, 1763; nickel, 286; and cobalt, 11. During the period 1985-1988, the average level of lead in canned foods decreased from 73.6 to 46 ng/g.
在1986年至1988年期间，在加拿大5个城市的零售层面购买食品，针对每个城市，将食品加工以供食用并组合成113种综合样本和39种综合子样本。测定了所有样本中的铅和镉；测定了温尼伯样本中的氟化物；测定了蒙特利尔样本中的钴和镍。在各个样本中发现的浓度均值和范围（纳克/克）分别为：铅，23.2（<0.4 - 523）；镉，9.96（<0.02 - 167）；氟化物，325（11 - 4970）；镍，196（<0.6 - 2521）；钴，9.4（<0.3 - 75.7）。所有年龄和性别的人群对这些元素的估计膳食摄入量（微克/天）分别为：铅，24；镉，13；氟化物，1763；镍，286；钴，11。在1985年至1988年期间，罐装食品中的铅平均含量从73.6降至46纳克/克。
