Karimi Diba J, Alirezazadeh N, Garshasbi H
National Radiation Protection Department, Iranian Nuclear Regulatory Authority, PO Box 14155-4494, Tehran, Iran.
Radiat Prot Dosimetry. 2003;104(3):259-62. doi: 10.1093/oxfordjournals.rpd.a006190.
In this study 215 Iranian subjects including 180 males and 35 females were investigated for potassium body contents, its variations with age, weight, body build index, and slenderness, as well as the radiation dose due to 40K. The average total body potassium is 147 +/- 22 g for males and 100 +/- 16 g for females. The average potassium concentrations for males and females are 1.98 +/- 0.34 and 1.60 +/- 0.29 g kg(-1) body weight, respectively. The potassium content decreases with age for both sexes. The 40K concentration decreases with slenderness in both sexes, particularly in females. The total body potassium increases with body build index for males, while its value is constant for females less than 40 y, and increases for females more than 40 y. The average effective doses due to 40K are 187 +/- 32 microSv y(-1) for males and 150 +/- 27 microSv y(-1) for females.
在本研究中，对215名伊朗受试者进行了调查，其中包括180名男性和35名女性，研究了体内钾含量、其随年龄、体重、体型指数和苗条程度的变化，以及40K所致的辐射剂量。男性平均全身钾含量为147±22克，女性为100±16克。男性和女性的平均钾浓度分别为1.98±0.34和1.60±0.29克/千克体重。两性的钾含量均随年龄下降。40K浓度随苗条程度下降，两性均如此，尤其是女性。男性的全身钾含量随体型指数增加，而40岁以下女性的值恒定，40岁以上女性则增加。40K所致的平均有效剂量男性为187±32微希沃特/年，女性为150±27微希沃特/年。
