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Atmospheric deposition of 7Be, 210Pb in Xining, a typical city on the Qinghai-Tibet Plateau, China

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Abstract

First continuous observations of 7Be and 210Pb monthly total depositional fluxes were performed from December 2014 to November 2017 in Xining, a typical city on the Qinghai-Tibet Plateau, China. The depositional fluxes showed a clear seasonal variation, with peak depositional fluxes in summer for 7Be and in summer or fall for 210Pb, and minimum values in winter for both 7Be and 210Pb. These are ascribed to the seasonal variability in precipitation and the stratosphere-troposphere exchange of atmosphere. The annual depositional fluxes were 1555 Bq m−2 year−1 for 7Be and 284 Bq m−2 year−1 for 210Pb. The annual volume-weighted activities and depositional fluxes of 7Be increased with altitude.

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Acknowledgements

This work was financially supported by the Hundred Talents Program of the Chinese Academy of Science (Y210101028), National Natural Science Foundation of China (41967053), Applied Basic Research Program of Qinghai Province (2019-ZJ-7021) and the Youth Foundation of Qinghai Normal University (2018zr002).

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Authors and Affiliations

  1. Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining, 810008, Qinghai, China

    Jufang Hu

  2. Key Laboratory of Salt Lake Geology and Environment of Qinghai Province, Xining, 810008, Qinghai, China

    Jufang Hu

  3. Key Laboratory of Physical Geography and Environmental Processes of Qinghai Province, School of Geographic Science, Qinghai Normal University, Xining, 810008, Qinghai, China

    Zhanjiang Sha & Yujun Ma

  4. State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai, 200062, China

    Jinlong Wang & Jinzhou Du

  5. University of Chinese Academy of Sciences, Beijing, 100049, China

    Jufang Hu

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  1. Jufang Hu
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Correspondence to Zhanjiang Sha.

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Hu, J., Sha, Z., Wang, J. et al. Atmospheric deposition of 7Be, 210Pb in Xining, a typical city on the Qinghai-Tibet Plateau, China. J Radioanal Nucl Chem 324, 1141–1150 (2020). https://doi.org/10.1007/s10967-020-07127-3

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