环境水贮存温度和贮存时间对溶解137Cs浓度的影响

Radioisotopes Pub Date : 2020-10-15 DOI:10.3769/radioisotopes.69.315

H. Tsuji, S. Takechi, H. Ozaki, Tatsuhiro Nishikiori, T. Kubota, S. Hayashi

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引用次数: 1

摘要

本文研究了来自森林河流、城市河流和农业水库的未过滤水样在恒温储存过程中溶解137cs浓度的波动。当采样后立即酸化时，在30天的储存期内，溶解的137cs浓度比原位浓度增加。在不加酸的情况下，溶解的137cs浓度随储存温度、储存天数和水的性质而变化。研究结果表明，通过在过滤前短暂冷藏后将水温恢复到原始采样水的温度，可以重现原位溶解的137cs浓度。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Effect of Storage Temperature and Duration of Environmental Water on Dissolved 137Cs Concentration

We examined ﬂuctuations of dissolved 137 Cs concentration in the constant temperature storage of unﬁltered water samples from forest rivers, urban rivers and agricultural reservoirs. When the water was acidiﬁed im mediately after sampling, the dissolved 137 Cs concentration during the 30-day storage period increased from the in situ concentration. The dissolved 137 Cs concentration without acid varied depending on the storage temperature, number of storage days, and the nature of the water. The ﬁndings suggest that it is possible to reproduce the in situ dissolved 137 Cs concentration by restoring the water temperature to that of the originally sampled water after a short period storage of refrigeration prior to ﬁltration.

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Radioisotopes

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