| LIANG Min-yi,LIANG Yong-xi,ZHANG Jin-hong.Preliminary study on influences of radioactivity of residential granite building materials upon parent mice and their offspring[J].Chinese Journal of Radiological Medicine and Protection,2006,26(4):351-355 |
| Preliminary study on influences of radioactivity of residential granite building materials upon parent mice and their offspring |
| Received:February 28, 2006 |
| DOI： |
| KeyWords:Granite building materials Radioactivity Mice γ-ray Residential radon |
| FundProject:广州市建设科技发展基金资助项目(200020) |
| Author Name | Affiliation | | LIANG Min-yi | Department of Medical Genetics and Medical Cell Biology, Guangzhou Medical College, Guangzhou 510182, China | | LIANG Yong-xi | 广州市环境监测中心站 | | ZHANG Jin-hong | Department of Medical Genetics and Medical Cell Biology, Guangzhou Medical College, Guangzhou 510182, China | | 朱蔚云 | Department of Medical Genetics and Medical Cell Biology, Guangzhou Medical College, Guangzhou 510182, China | | 黎银燕 | Department of Medical Genetics and Medical Cell Biology, Guangzhou Medical College, Guangzhou 510182, China | | 张松川 | 广州市环境监测中心站 | | 朱大明 | 广州市环境监测中心站 | | 李锦林 | 广州市环境监测中心站 | | 卢庆普 | 广州市环境监测中心站 |
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| Abstract:: |
| Objective To observe the effects of radioactivity of the residential granite building materials on the survival and fertility of mice. Methods The radioactivities of A, B, C, and D granite building materials were measured and screened by gamma-ray spectrometer, and then these materials were placed into the mice cages. The residential radon was measured with solid state nuclear track detectors and 24-hour continuous measurement. Ninety-six healthy and ablactated mice were randomly selected and put into the four animal cages with different levels of radioactivity, and fed for 120 days. Mice mated and bred naturally. The fertilities and survivals of P, F1, and F2 generation were observed and analyzed. Results External exposures in the four mice cages were higher than those from the internal exposure. The differences of rates of pregnancy, abortion, and infertility between the P and F1 generations had no statistical significance among all the groups after being fed for 120 days (P>0.05). There was significant difference among each group in the fertility of F1 generation (P<0.001), and the survival rates of the offspring were decreased with increase of radioactivity in granite building materials (P<0.001). Conclusion Compared with the residential radon, the gamma rays released from the granite building materials had a greater influence on animals. The study suggested that different granite building materials had different influences on the survival and fertility of mice. |
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