[Epidemiological survey in a high background radiation area in Yangjiang, China].
[Epidemiological survey in a high background radiation area in Yangjiang, China].
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DOI：
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发表时间：
1996-12
影响因子：
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通讯作者：
Zhao Yr;Tao Zf;Wei Lx
中科院分区：
文献类型：
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作者：
Zhao Yr;Tao Zf;Wei Lx
本文介绍了阳江市高本底辐射区1972 ~ 1990年的健康调查结果。用不同方法对环境和人体进行的放射学测量表明，HBRA地区的330 mR/a和控制区（CA）的114 mR/a是个体每年暴露于外部环境伽马辐射的剂量，HBRA地区和CA地区的全身有效剂量分别为6.4 mSv和2.4 mSv。对其致癌和致突变因素进行了调查。结果表明，这两个地区的影响因素相似。根据以下数据，到目前为止，未发现天然辐射造成的有害影响：HBRA地区癌症死亡率为1008,769人年，CA为995,070人年；13425例HBRA和13087例CA的遗传疾病和同类畸形；发现了人类染色体畸变和居民的免疫功能。此外，本文还讨论了癌症死亡率、染色体畸变和免疫功能的结果，并分析了它们之间可能的关系。并对低剂量辐射的致癌风险进行了估计和讨论。
The results of the health survey in a high background radiation area (HBRA) from 1972 to 1990, in Yangjiang, China, are presented in this paper. Radiological measurements of the environmental and human bodies with different methods revealed that 330 mR/a in HBRA and 114 mR/a in the control area (CA) were the doses that annually an individual exposure to the external environmental gamma radiation and effective doses to whole body are 6.4 mSv in HBRA and 2.4 mSv in CA annually. The carcinogenic and mutagenic factors were surveyed. The Results showed that these factors in the two areas were similar. Up till now, no harmful impact induced by natural radiation, based on the data as: cancer mortality from 1,008,769 person-years in HBRA and 995,070 person-years in CA; hereditary diseases and congenial malformations from 13,425 subjects in HBRA and 13,087 subjects in CA; human chromosome aberrations, and immune function of the inhabitants, was found. In addition, in this paper the authors discussed the results of cancer mortality, of chromosome aberrations and of immune function, and analyzed the possible relationship among them. The carcinogenic risk induced by low dose radiation was also estimated and discussed.