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本文报道了对26种进口奶粉中总β放射性、~(40)K、减钾总β放射性和~(137)Cs的含量调查结果,平均值依次为274.5Bq/kg、215.7Bq/kg、58.8Bq/kg、0.425Bq/Kg。大部分奶粉减钾部β放射性已超出国家标准中规定的最低的核素限制浓度,但~(137)Cs含量均未超出限制浓度。本调查还表明婴儿奶粉中放射性物质含量低于全脂奶粉和高蛋白奶粉,进口奶粉放射性平均水平高于国产奶粉。
In this paper, the results of total β radioactivity, ~ (40) K, total β-radioactivity and ~ (137) Cs content in 26 kinds of imported milk powder were reported. The average values were 274.5Bq / kg, 215.7Bq / kg and 58.8 Bq / kg, 0.425 Bq / Kg. Most of the powdered milk potassium partial beta radioactivity has exceeded the minimum concentration of radionuclides specified in the national standard, but ~ (137) Cs content did not exceed the limit concentration. The survey also shows that the content of radioactive milk in infant formula is lower than whole milk powder and high protein milk powder, and the average radioactive content of imported milk powder is higher than that of domestic milk powder.