Decreased blood cell counts were not observed in cattle living in the 'difficult-to-return zone' of the Fukushima nuclear accident
| Autor: | Hiroshi Satoh, Itaru Sato, Yoshitaka Deguchi, Masahiro Natsuhori, Hiroyuki Chida, Jun Sasaki, Keiji Okada, Kumiko Otani |
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| Rok vydání: | 2018 |
| Předmět: |
Farms
Fukushima Nuclear Accident Lymphocyte Cumulative Exposure Biology Radiation Dosage Physiology/Anatomy Blood cell Leukocyte Count 03 medical and health sciences Animal science Japan White blood cell medicine Animals Lymphocyte Count Fukushima Normal range 030304 developmental biology 0303 health sciences 0402 animal and dairy science Environmental Exposure 04 agricultural and veterinary sciences General Medicine 040201 dairy & animal science blood cell counts radiation Radiation exposure Red blood cell medicine.anatomical_structure cattle Erythrocyte Count Original Article ORIGINAL ARTICLES General Agricultural and Biological Sciences Radioactive Pollutants |
| Zdroj: | Animal Science Journal = Nihon Chikusan Gakkaiho |
| ISSN: | 1344-3941 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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