| 辽宁城镇居民饮用水总放射性水平调查 |
| 摘要点击 641 全文点击 428 投稿时间：1994-08-22 |
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| 中文关键词 放射性 饮用水 辽宁 调查 |
| 英文关键词 uranium α radioactivity βradioactivity drinking water Liaoning Province |
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| 中文摘要 |
| 报道1990—1994年间对辽宁省50个自来水公司及40个厂矿自备水样品总α、总β放射性的调查结果。其总α范围分别在0.9×10-2—16.3×10-2、0.3×10-2—21.6×10-2 Bq·L-1,均值分别为0.046、0.065 Bq·L-1,超标率分别为8%。15%。总β范围在0.08—1.07 Bq·L-1,超标样品很少。研究表明,天然放射性核素是饮水中总α的主要贡献者,其中尤以天然铀贡献为最大,约占总α的43%。 |
| 英文摘要 |
| The detection of total α and β radioactivities in the water samples collected from 50 waterworks companies and 40 self-supported water supply systems for factories or mines in the Liaoning Province was carried out in 1990 to 1994 and the results were reported. It was found that the total α radioactivity was in the ranges of 0.9×10-2—16.3×10-2 and 0.3×10-2—21.6×10-2 Bq·L-1, with the averages of 0.046 and 0.065 Bq·L-1 which were 8% and 15% over the national standards, respectively in the above two corresponding cases. The total β radioactivity was found in the range of 0.08—1.07 Bq·L-1, with less water samples which were exceeding the national standards. The results show that the naturaf radioactive nuclides were the major contributors to the total α radioactivity in the drinking water and the natural uranium compounds made the largest contribution by about 43% of the total α radioactivity. |
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