| 摘要: |
| 运用本实验室建立的大气沉降中7Be,210Pb的γ谱分析方法和210Po的α谱分析方法,测定了青岛大气沉降通量。结果表明,青岛市2002年4～11月大气沉降的7Be和210Pb通量平均为1.67和0.32 Bq/(m2·d);2004年5～9月7Be,210Pb和210Po通量平均值为2.15,0.51和0.083 Bq/(m2·d)。 |
| 关键词: 大气沉降 7Be 210Pb 210Po 青岛 |
| DOI： |
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| 基金项目:国家自然科学基金重点项目( 40036010) ; 中国海洋大学海洋生态环境重点实验室开放基金资助项目 |
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| Measurements of atmospheric deposition fluxes of 7Be, 210Pb and 210Po |
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| Abstract: |
| The measurement methods of atmospheric deposition fluxes of 7Be, 210Pb and 210Po have been developed, 7Be and 210Pb are measured by γ spectroscopy, and 210Po is determined using α spectroscopy. The formulas from the activities of measuring time to deposition spectroscopy have been deduced. The formulas from the activities of measuring time to deposition fluxes have been deduced, too. The atmospheric deposition fluxes of 7Be, 210Pb and 210Po at Qingdao have been studies. The result shows that the average fluxes of 7Be, 210Pb are 1.67 and 0.32 Bq/(m2·d) respectively during April to November 2002 and average fluxes of 7Be, 210Pb and 210Po are 2.15, 0.51 and 0.083 Bq/(m2·d) during May to September 2004. |
| Key words: atmospheric deposition 7Be 210Pb 210Po Qingdao |
