診療放射線技師の継続調査による血球数の動向

概要

論文の詳細を見る
From the nine health surveys made on clinical radiation technicians working at health centers during the 18 years from 1957 to 1975,679 technicians on whom blood examinations were made for not less than ten consecutive years were sampled to investigate for chronological alterations in their blood parameters. The radiation protective means at the health centers have made rapid progress ever since the atomic bomb experiment in 1954,and the dose of exposure to radiation then began to decrease. On the other hand, it was in about 1960 that the measurement of individual exposure doses began to be made on 60% of all the technicians. Chronological alterations in the average blood counts of these technicians under the abovementioned situation were such that RBC and hemoglobin level continued to increase from 1963 until about 1967,but then began to decrease, and that WBC was as low as 5,883/mm^3 in 1957,but tended to increase though slightly at each of the subsequent surveys, and was increased to 6,570/mm^3 in 1975,that is, WBC has been approaching the normal count of 6,774/mm^3 in the Japanese, with a significant difference at a not more than 1% level of significance in each survey year. For the purpose of preventing radiation hazard, further efforts should be made to protect the technicians from exposure to radiation and to control their health.
公益社団法人日本放射線技術学会の論文
1977-07-01