摘要
目的了解长期小剂量医用电离辐射对放射工作者健康的影响,为保障工作者的健康和改进防护措施提供依据。方法以530名医用电离辐射工作人员做为调查对象,监测其受照剂量,选取87名健康医务工作者做为对照组,同时进行健康检测(包括临床检查和实验室检查)。结果放射组的人均年剂量当量为1.47mSv。放射组神经衰弱样症状、皮肤损伤和晶体混浊患病率明显高于对照组,并且有随放射工龄增加而增加的趋势;放射组的白细胞和血小板计数与对照组相比有降低的趋势;外周血淋巴细胞染色体畸变、微核率明显高于对照组,并且有随工龄增加而增加的趋势。结论长期小剂量接触电离辐射仍可使机体产生一定的辐射损伤,应该进一步加强辐射防护工作。
Objective To Study the influence on the professional workers for long - term exposure to low - dose ionizing radiation, and provide scientific basis for further radiation protection. Method 530 radiation - exposed and 87 healthy workers were chosen for the clinical examination and laboratory test. Results Personal annual effective doses were 1.47mSv, the symptoms of neurasthenia, skin lesion and lens opacity were more serrious than those of the control group, the prevalence increased as working period prolonged. The leukocyte and platelet count was lower than that of the control group. The aberration rate of lymphocytes chromosomas and the rate of micronueles were both significantly higher than that of the control group, and the rate increase as working period prolonged. Conclusion Long - term and low - dose radiation exposure may cause certain radiant injures and radiation protection should be further improved.
出处
《中国辐射卫生》
2009年第1期11-12,共2页
Chinese Journal of Radiological Health
基金
山东省科技厅科技攻关项目(2005GG3208041)
关键词
医用电离辐射
辐射效应
遗传学改变
Ionizing Radiation
Radiation Effects
Genetic Alterations
