| 任天山,赵秋芬,陈炳如,等.中国地表水和地下水氚浓度[J].中华放射医学与防护杂志,2005,25(5):466-472.REN Tian-shan,ZHAO Qiu-fen,CHEN Bing-ru,et al.Tritium concentrations of surface and underground waters in China[J].Chin J Radiol Med Prot,2005,25(5):466-472 |
| 中国地表水和地下水氚浓度 |
| Tritium concentrations of surface and underground waters in China |
| 投稿时间：2004-12-18 |
| DOI： |
| 中文关键词: 氚浓度 地表水 地下水 河水 湖水 井水 泉水 环境氚 |
| 英文关键词:Tritium concentration Surface water Underground water River water Lake water Well water Spring water Environmental tritium |
| 基金项目:卫生部基金资助项目(990601) |
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| 中文摘要: |
| 目的 研究20世纪90年代初(1991—1993年)我国地表水和地下水中氚浓度的水平、分布和变化。方法 地表水样品中387个采自全国64条江、河,151个样品采自24个湖泊或水库(其中1991—1993年间采集的分别为137和34个样品);地下水样品中泉水有44个,井水122个(其中1991—1992年采集的分别为34个和96个)。样品预处理和制备采用国家标准GB1237590推荐的方法,氚浓度测量用低本底液体闪烁谱仪,数据用MSOffice进行处理和分析。结果 20世纪90年代初我国江河和湖泊水氚浓度的总体平均值分别为4.67和4.55Bq/L;泉水和井水分别为2.38和4.04Bq/L;地表水氚浓度和泉水氚浓度之间有显著差异,而与井水之差异无统计学意义。结论 20世纪90年代初我国地表水氚浓度已接近全球大气层核试验前天然氚浓度。我国江河水、湖泊水、井水氚浓度呈现西、北高,东、南低的地区分布,而泉水氚浓度则无明显的地区分布趋势。 |
| 英文摘要: |
| Objective To investigate tritium concentrations in surface and underground waters in China in the period of 1991 to 1993. Methods All together 387 surface water samples were collected from 64 rivers and 24 lakes or reservoirs all over China,among them306 were sampled in the above period.For springs and wells 44 and 122 water samples were obtained,respectively, among them34 and 96 were collected in the above period.All these samples were processed and analyzed with the method recommended in Chinese National Standards GB12375-90. The data of tritium concentrations were processed with MS Office. Results The results showed that the average tritium concentrations of river,lake,spring and well water were 4.67,4.55,2.38 and 4.04 Bq/L,respectively. Conclusion Features of regional distribution of tritium concentrations in surface and underground waters, higher in the north and west and lower in the south and east of China, were observed. |
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