| CHEN Ying-min,LI Hai-liang,SONG Gang,BI Ming-wei,WAN En-guang,LI Ming-gang,LI Ming-yan.Measurement of radon concentration and dose assessment of miners for non-uranium mines in Shandong Province[J].Chinese Journal of Radiological Medicine and Protection,2009,29(2):178-180 |
| Measurement of radon concentration and dose assessment of miners for non-uranium mines in Shandong Province |
| Received:September 17, 2008 |
| DOI：10.3760/cma.j.issn.0254-5098.2009.02.021 |
| KeyWords:Non-uranium mines Radon Time_integrating measurement Annual effective dose |
| FundProject:科技部科研院所社会公益研究专项(2005DIB1Z087) |
| Author Name | Affiliation | | CHEN Ying-min | Institute of Radiation Medicine, Shandong Academy of Medicine Sciences, Jinan 250062, China | | LI Hai-liang | Institute of Radiation Medicine, Shandong Academy of Medicine Sciences, Jinan 250062, China | | SONG Gang | Institute of Radiation Medicine, Shandong Academy of Medicine Sciences, Jinan 250062, China | | BI Ming-wei | Institute of Radiation Medicine, Shandong Academy of Medicine Sciences, Jinan 250062, China | | WAN En-guang | 兖州矿业集团职业病防治所 | | LI Ming-gang | 山东招远市疾病预防控制中心 | | LI Ming-yan | 山东莱芜市疾病预防控制中心 |
|
| Hits: 2741 |
| Download times: 1858 |
| Abstract:: |
| Objective To measure 222Rn and 220Rn concentrations in the underground non-uranium mines in Shandong Province, and to estimate the annual effective dose to the miners. Methods Concentrations of 222Rn and 220Rnin selected gold, iron, coal and clay mines were determined by passive time_integrating detectors with CR-39. Activity concentrations of 226Ra, 232Th and 40K were determined using gamma spectrometry equipped with HPGe detector. Results The average concentrations of 220Rnin the gold, iron, coal and clay mines were estimated to be 1200, 280, 120 and 40 Bq/m3, respectively. The activity concentrations of 226Ra,232Th,40K in the ores for gold, iron, coal and clay mines ranged the same as the soil in China. The annual effective dose due to radon exposure in gold and iron mine was 7.70 mSv and 1.74 mSv, respectively. The annual doses received by miners in the coal and clay mines were lower than 1 mSv. Conclusions Underground miners in some gold and iron mines should be treated as workers occupationally exposed to ionizing radiation. The measurement such as increasing ventilation should be implemented to reduce underground radon concentration in these mines. |
| HTML View Full Text View/Add Comment Download reader |
| Close |
|
|
|
