Survey of total mercury in total diet food composites and an estimation of the dietary intake of mercury by adults and children from two Canadian cities, 1998-2000
Survey of total mercury in total diet food composites and an estimation of the dietary intake of mercury by adults and children from two Canadian cities, 1998-2000
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DOI：
10.1080/0265203031000119034
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发表时间：
2003-07-01
期刊：
影响因子：
--
通讯作者：
Bradley, P
中科院分区：
文献类型：
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作者：
Dabeka, RW;McKenzie, AD;Bradley, P
测量了来自加拿大两个城市的259种减肥食品中的总汞含量。含量普遍较低，46%的复合材料浓度低于检测限，检测限范围为0.026至0.506 ng g（-1）。鱼类的汞浓度最高，平均为67纳克（-1），范围在24至148纳克（-1）之间。所有复合材料均低于加拿大鱼类总汞含量0.5 ppm的指导标准。饮食中汞的摄入量平均为0.022马克千克（-1）体重/天（马克千克（-1）天），范围从65岁以上女性的0.012马克千克（-1）天（-1）到0-1个月婴儿的0.062马克千克（-1）天（-1）。对于食用鱼类的人来说，摄入的汞有一半以上来自鱼类。所有摄入量都远低于粮农组织/世卫组织食品添加剂联合专家委员会临时可耐受的每周摄入量（以每日为单位表示），即0.71马克千克（-1）天总汞和0.47马克千克（-1）天甲基汞，也低于加拿大卫生部最近建议的儿童和育龄妇女甲基汞的最大摄入量0.2马克千克（-1）天。
Total mercury was measured in 259 total diet food composites from two Canadian cities. Levels were generally low, with 46% of the composites having concentrations below the limit of detection, which ranged from 0.026 to 0.506 ng g(-1) . The fish category contained the highest mercury concentrations, which averaged 67 ng g(-1) and ranged from 24 to 148 ng g(-1) . All composites were below the Canadian guideline for total mercury in fish of 0.5 ppm. Dietary intakes of mercury averaged 0.022 mug kg(-1) body weight/day (mug kg(-1) day(-1)), and ranged from 0.012 mug kg(-1) day(-1) for females over 65 years old to 0.062 mug kg(-1) day(-1) for 0-1-month-old infants. For fish consumers, fish contributed to more than half of the ingested mercury. All intakes were well below Joint FAO/WHO Expert Committee on Food Additives Provisional Tolerable Weekly Intakes, expressed on a daily basis, of 0.71 mug kg(-1) day(-1) total mercury and 0.47 mug kg(-1) day(-1) methyl mercury, and also below a recent Health Canada recommended maximum methyl mercury intake of 0.2 mug kg(-1) day(-1) for children and women of child-bearing age.