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首页> 美国卫生研究院文献>Wiley-Blackwell Online Open >Decreased blood cell counts were not observed in cattle living in the difficult‐to‐return zone of the Fukushima nuclear accident
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Decreased blood cell counts were not observed in cattle living in the difficult‐to‐return zone of the Fukushima nuclear accident

机译：在福岛核事故难返区生活的牛中未观察到血细胞计数降低

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摘要

White blood cells, especially lymphocytes, are susceptible to radiation exposure. In the present study, red blood cell, total white blood cell, and lymphocyte counts were repeatedly measured in cattle living on three farms located in the “difficult‐to‐return zone” of the Fukushima nuclear accident, and compared with two control groups from unaffected areas. Blood cell counts differed significantly between the two control groups, although almost all the values fell within the normal range. The blood cell counts of the cattle in the “difficult‐to‐return zone” varied across sampling times even on the same farms, being sometimes higher or lower than either of the two control groups. However, neither a statistically significant decrease in blood cell counts nor an increase in the rate of cattle with extremely low blood cell counts was observed overall. The estimated cumulative exposure dose for the cattle on the most contaminated farm was within a range of 500–1000 mSv, exceeding the threshold for the lymphopenia. Because of the low dose rate on these farms, potential radiation damages would have been repaired and have not accumulated enough to cause deterministic effects.
机译：白细胞，特别是淋巴细胞，容易受到辐射的照射。在本研究中，重复测量了福岛核事故“难返区”三个农场中的牛的红细胞，总白细胞和淋巴细胞计数，并将其与来自福岛核事故的两个对照组进行了比较。不受影响的地区。尽管几乎所有值均在正常范围内，但两个对照组之间的血细胞计数差异显着。即使在同一农场，“困难返回区”中牛的血细胞计数也随采样时间的不同而变化，有时高于或低于两个对照组中的任何一个。但是，总体上，既没有观察到血细胞计数的统计学显着下降，也没有观察到具有极低血细胞计数的牛的比率增加。在受污染最严重的农场，牛的估计累积暴露剂量在500-1000 mSv的范围内，超过了淋巴细胞减少的阈值。由于这些养殖场的剂量率较低，因此可能会修复潜在的辐射损伤，并且积累的剂量不足以产生确定性影响。

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