Mitchell D G, Aldous K M
Environ Health Perspect. 1974 May;7:59-64. doi: 10.1289/ehp.74759.
The lead content of a number of foodstuffs, particularly baby fruit juices and milk, is reported. Samples were analyzed in quadruplicate by using an automated Delves cup atomic absorption procedure. A large proportion of the products examined contained significant amounts of lead. Of 256 metal can examined, the contents of 62% contained a lead level of 100 mug/l. or more, 37% contained 200 mug/l. or more and 12% contained 400 mug/l. lead or more. Of products in glass and aluminum containers, only 1% had lead levels in excess of 200 mug/l. Lead levels of contents also correlate with the seam length/volume ratio of the leaded seam can. A survey of bulk milk showed a mean lead level of 40 mug/l. for 270 samples; for canned evaporated milk the mean level was 202 mug/l. These data indicate a potential health hazard.
报道了一些食品，特别是婴儿果汁和牛奶中的铅含量。通过使用自动德尔夫斯杯原子吸收程序对样品进行了四次分析。所检测的大部分产品含有大量的铅。在检测的256个金属罐中，62%的罐内铅含量达到或超过100微克/升，37%达到或超过200微克/升，12%的铅含量达到或超过400微克/升。在玻璃和铝制容器中的产品，只有1%的铅含量超过200微克/升。罐装食品的铅含量也与含铅接缝罐的接缝长度/体积比相关。对散装牛奶的一项调查显示，270个样品的平均铅含量为40微克/升；罐装炼乳的平均铅含量为202微克/升。这些数据表明存在潜在的健康危害。
