| DENG Da-ping,XU Jia-ang,ZHU Jian-guo,et al.Assessment of radiation background level of Shandong basin in east line of northward rerouting of southern river[J].Chinese Journal of Radiological Medicine and Protection,2007,27(2):188-190 |
| Assessment of radiation background level of Shandong basin in east line of northward rerouting of southern river |
| Received:February 28, 2006 |
| DOI： |
| KeyWords:Northward rerouting of southern river Shandong Radioactivity Background levels Assessment |
| FundProject:山东省医药卫生资助项目(2003-15) |
| Author Name | Affiliation | | DENG Da-ping | Institute of Radiation Medicine, Shandong Academy Medical Sciences, Jinan 250062, China | | XU Jia-ang | Institute of Radiation Medicine, Shandong Academy Medical Sciences, Jinan 250062, China | | ZHU Jian-guo | Institute of Radiation Medicine, Shandong Academy Medical Sciences, Jinan 250062, China | | 陈英民 | Institute of Radiation Medicine, Shandong Academy Medical Sciences, Jinan 250062, China | | 卢峰 | Institute of Radiation Medicine, Shandong Academy Medical Sciences, Jinan 250062, China | | 宋钢 | Institute of Radiation Medicine, Shandong Academy Medical Sciences, Jinan 250062, China | | 曹敬丽 | Institute of Radiation Medicine, Shandong Academy Medical Sciences, Jinan 250062, China |
|
| Hits: 3217 |
| Download times: 2049 |
| Abstract:: |
| Objective To assess the radiation background levels of Shandong basin in east line of northward rerouting of southern river. Methods The activity concentrations of gross-alpha, gross-beta, 137Cs, 238U, 232Th, 40K, 226Ra and 90Sr in the samples were measured by national standard methods respectively. The values of the dose conversion factor given by UNSCEAR 2000 were adopted for dose estimation. Results The average activity concentrations of gross-alpha, gross-beta, 137Cs, 238U, 232Th, 40K, 226Ra and 90Sr in the samples were pooled in order to analyze dose estimation. The committed effective doses of the 226Ra, 238U,90Sr,232Th and 137Cs from lake water for residents are 1.46,4.95×10－1,1.24×10－1,2.58×10－2 and 7.93×10－3 μSv per year respectively. The committed effective doses of the 226Ra, 238U and 90Sr from cyprinoid fish are 5.49×10－2,3.69×10－2 and 1.77×10－2 μSv per year respectively. Conclusions The results show that the average activity concentrations of gross-alpha, gross-beta, 137Cs, 238U, 232Th, 40K, 226Ra and 90Sr in the samples from Shandong basin of northward rerouting of southern river are within the background levels. And in the main lake basin, the estimated exposures of public caused by the radionuclide in water and cyprinoid fish are so low that they can be ignored unless there are some radioactive contamination in the future. |
| HTML View Full Text View/Add Comment Download reader |
| Close |
|
|
|
