Publicatie Laka-bibliotheek:
Health risks of low level radiation
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| Classificatie | 3.01.8.43/08 (VS - LOCATIES - HANFORD) |
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Uit de publicatie:
Introduction ABCC estimates of cancer effects of low level radiation are based on the mortality experiences of A-bomb survivors and are in reasonable agreement with estimates based on patients with ankylosing spondylitis after exposure to radiotherapy; MSK estimates are based on Hanford data and are in reasonable agreement with estimates based on children after in utero exposure to diagnostic x-rays. Nevertheless, according to ABCC estimates - which have been the mainstay of ICRP recommendations for many years - the cancer risks of radiation workers are an order of magnitude lower than MSK estimates and according to MSK estimates linear extrapolation of high dose observations underestimates the risk at low dose levels. Neither Hanford workers nor the children who were x-rayed in utero had any experience of high doses but some A-bomb survivors and all of the spondylitic patients had estimated doses which were well above the levels associated with marrow damage. The main consequences of such damage are heightened sensitivity to infections and faulty erythropoesis. Therefore, it is possible that unrecognised non-cancer deaths which were caused by marrow damage and had prevented recognition of slow growing cancers were the reason why ABCC estimates are so much lower than MSK estimates.
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