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对南通市部分食品中铅含量的测定及４４ 名５ ～７ 岁学龄前儿童全面营养调查和铅污染有关指标进行分析的结果提示：所检测的１４３ 种食物基本符合现有食物中铅含量国家卫生标准。传统膨化食品加工工艺对膨化食品铅含量有较大影响。发铅含量小于１０μｇ／ｇ（ Ａ 组） 和发铅含量大于等于１０μｇ／ｇ（Ｂ 组） 儿童铅摄入量均超过ＦＡＯ／ ＷＨＯ１９８６ 年的建议值，分别为１８５－２５ ±４２－８５μｇ／ｄ 和１６０－９１ ±３１－４７μｇ／ｄ ，且Ａ 组显著高于Ｂ 组（Ｐ＜ ０－０５） 。Ａ 组膳食钙、维生素Ａ、维生素Ｅ、乳类及蔬菜的平均摄入量亦均显著高于Ｂ 组（Ｐ＜ ０－０５） ，提示这些因素对儿童铅污染有一定保护作用
The results of the determination of lead in some foods in Nantong City and the comprehensive nutrition survey of 44 preschool children aged 5 ~ 7 and the related indicators of lead pollution suggest that the 143 kinds of foods tested are basically in line with the existing lead content in food. National Health standard. Traditional puffed food processing technology has a significant impact on the content of lead in puffed food. Lead intake in children with hair lead levels less than 10 μg / g (Group A) and those with hair lead levels greater than or equal to 10 μg / g (Group B) exceeded the recommended values for FAO / WHO 1986 at 185-25 ± 42-85 μg / d And 160-91 ± 31-47μg / d, and the A group was significantly higher than the B group (P <0-05). The mean intake of dietary calcium, vitamin A, vitamin E, milk and vegetables in group A was also significantly higher than that in group B (P <0-05), suggesting that these factors may have a protective effect on lead pollution in children