中文摘要：

大气的 polonium-210 的 depositional 流动从 2001 年 8 月在厦门在一个地点被测量到 2002 年 3 月。与占优势的海洋的气团，大气的 polonium-210 的 depositional 流动从 0.01 ～ 0.09 Bq/(m~2 · d )，与 0.04 Bq/(m~2 · d ) 的一般水准。季节的模式在夏天和秋天而非在冬季显示出提高的 polonium-210 流动。polonium-210 的大气的 depositional 流动显示出好关联 withberyllium-7 (r~2 = 0。85 ) 并且 lead-210 流动(r~2 = 0.71 ) ，从空气显示他们的类似的移动机制。在 polonium-210 depositional 流动和降水数量之间的关系证明降水从空气统治 polonium-210 移动。到 lead-210 的 polonium-210 的观察高活动比率在沿海的空气显示了过量 polonium-210 的出现，它可以从海洋的表水任何一个发源由间接(泡沫) ，或更多半，指导(空气 - 海交换) 进空气的海洋的源於生物的材料的输入。这来源比甚至更重要在里面 lead-210 的 situ 腐烂。

英文摘要：

The depositional fluxes of atmospheric polonium-210 were measured at one site in Xiamen from August 2001 to March 2002. With predominant marine air mass, the depositional fluxes of atmospheric polonium-210 ranged from 0.01 to 0.09 Bq/（m^2· d）, with an average of 0.04 Bq/（m^2 · d）. The seasonal pattern showed elevated polonium-210 fluxes in summer and autumn rather than in winter. Atmospheric depositional fluxes of polonium-210 showed a good correlation with beryllium-7 （r^2 =0. 85） and lead-210 fluxes （r^2 =0.71 ）, indicating their similar removal mechanism from atmosphere. The relationship between the polonium-210 depositional fluxes and the precipitation amount demonstrated that the precipitation dominates the polonium-210 removal from the atmosphere. The observed high activity ratios of polonium-210 to lead-210 indicated the occurrence of excess polonium-210 in coastal atmosphere, which may originate from marine surface waters either by indirect （foam）, or mare likely, direct （ air - sea exchange） input of marine bingenic material into the atmosphere. This source is even more important than the in situ decay of lead-210.