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首页> 外文期刊>Chinese science bulletin >The input/removal rates of size-fractionated ~(210)Po in the Jiulongjiang estuary and its implications
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The input/removal rates of size-fractionated ~(210)Po in the Jiulongjiang estuary and its implications

机译：九龙河口大小的〜（210）Po的输入/去除率及其意义

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摘要

The geochemical behaviors of dissolved ( < 0.4 μm), low molecular weight ( < 10 kDa) and colloidal (10 kDa-0.4 μm) ~(210)Po in surface waters from the Jiulongjiang estuary were examined and the input/removal rates of different ~(210)Po species were estimated. Both dissolved and low molecular weight ~(210)Po were considerably removed during estuarine mixing. However, colloidal ~(210)Po was removed only at low salinity regions (S <15) but had input behavior at high salinity surface waters (S >15). The input/removal rates of three species indicate that ~(210)Po was removed rapidly in the Jiulongjiang estuary. The discrepancy of input/removal rates between ~(210)Po species suggests different geochemical behavior and a dynamic transformation between ~(210)Po species. Low molecular weight ~(210)Po may be more appropriate for characterizing the ~(210)Po behavior in estuary zone than the traditional dissolved ~(210)Po.
机译：研究了九龙江口地表水中溶解（<0.4μm），低分子量（<10 kDa）和胶体（10 kDa-0.4μm）〜（210）Po的地球化学行为，并研究了其不同的输入/去除率估计〜（210）Po种。在河口混合过程中，溶解的和低分子量的〜（210）Po都被大量除去。然而，胶体〜（210）Po仅在低盐度区域（S <15）被除去，但在高盐度地表水（S> 15）中具有输入行为。三种物种的输入/去除速率表明〜（210）Po在九龙江口迅速去除。 〜（210）Po物种之间输入/去除速率的差异表明〜（210）Po物种之间存在不同的地球化学行为和动态转换。低分子量〜（210）Po可能比传统的溶解〜（210）Po更适合表征河口区〜（210）Po的行为。

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