| 滇西临沧褐煤放射性水平及区域污染分析 |
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| 引用本文： | 喻亦林.滇西临沧褐煤放射性水平及区域污染分析[J].地球与环境,2007,35(2):147-153. |
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| 作者姓名： | 喻亦林 |
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| 作者单位： | 云南省辐射环境监督站,云南,昆明,650034 |
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| 摘 要： | 通过对临沧及云南省褐煤中放射性核素238U2、32Th2、26Ra比活度调查,类比各煤种放射性水平,得出临沧褐煤为铀煤伴生矿。通过临沧铀锗煤中放射性核素在利用过程中的转移估量和临沧城区放射环境现状调查,分析铀锗煤矿利用形成的小区域辐射污染及对放射环境的影响,得出煤中放射性核素的二次污染导致了区域放射环境水平的提高。
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| 关 键 词： | 滇西 褐煤 放射性 污染 分析 |
| 文章编号： | 1672-9250（2007）02-0147-07 |
| 修稿时间： | 2006-12-25 |
ANALYSIS OF RADIOACTIVE LEVEL OF LIGNITE AND ASSOCIATED REGIONAL POLLUTION IN LINCANG,WEST YUNNAN |
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| YU Yi-lin.ANALYSIS OF RADIOACTIVE LEVEL OF LIGNITE AND ASSOCIATED REGIONAL POLLUTION IN LINCANG,WEST YUNNAN[J].Earth and Environment,2007,35(2):147-153. |
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| Authors: | YU Yi-lin |
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| Institution: | Yunnan Radio-environment Supervision Agency, Yunnan, Kunming 650034, China |
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| Abstract: | Investigating the specific radioactivity of ^238 U, ^232 Th and ^226 Ra in lignite produced in Lincang as well as the whole province and comparing the lignite with other kinds of coal showed that the lignite mine in Lincang is U-associated. By estimating the transfer of radioactive nuclides in the U-associated lignite of Lincang during utilization, investigating the status quo of radio-environment around Lincang City, and analyzing the regional radioactive pollution caused by the utilization of U-associated lignite as well as its impact on the radio-environment, a conclusion could be drawn that it is the secondary pollution of radioactive nuclides in the lignite that results in the increase of regional radioactivity levels. |
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| Keywords: | West Yuannan lignite radioactivity pollution analysis |
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