Analysis of the distribution characteristics of 226Ra and 228Ra and their sources in the western part of Qinghai Lake

Fancui Kong; Zhanjiang Sha; Jinzhou Du; Weigang Su; Chenguang Yu; Shunli Zhao; Jufang Hu; Mei Ye

doi:10.1007/s00343-015-4360-y

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Analysis of the distribution characteristics of 226Ra and 228Ra and their sources in the western part of Qinghai Lake

Updated：2023-05-16

- Analysis of the distribution characteristics of 226Ra and 228Ra and their sources in the western part of Qinghai Lake
- Journal of Oceanology and Limnology Vol. 33, Issue 6, Pages: 1402-1412(2015)
- Affiliations：
  
  1. Qinghai Institute of Salt Lakes Chinese Academy of Science s
  2. University of Chinese Academy of Sciences
  3. Zoucheng Bureau of Land and Resources
  4. Life and Geographical Sciences College and Education Ministry Key Laboratory of Environments and Resources in the Tibetan Plateau Qinghai Normal University
  5. State Key Laboratory of Estuarine and Coastal Research East China Normal University
- Author bio：
- Funds：
- DOI：10.1007/s00343-015-4360-y
  CLC：
- Online First：06 November 2015，
  
  Published：2015
- Accepted：
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Kong, F., Sha, Z., Du, J. et al. Analysis of the distribution characteristics of 226Ra and 228Ra and their sources in the western part of Qinghai Lake., Chin. J. Ocean. Limnol. 33, 1402–1412 (2015). https://doi.org/10.1007/s00343-015-4360-y
DOI：

Kong, F., Sha, Z., Du, J. et al. Analysis of the distribution characteristics of 226Ra and 228Ra and their sources in the western part of Qinghai Lake., Chin. J. Ocean. Limnol. 33, 1402–1412 (2015). https://doi.org/10.1007/s00343-015-4360-y DOI：

摘要

Abstract

The 226Ra and 228Ra activities of Qinghai Lake surface water

groundwater

river water

suspended particles

and bottom sediments were measured in a gamma-ray spectrometer. The sources of 226Ra and 228Ra were discussed according to their distribution characteristics. 226Ra and 228Ra activities (dpm/(100 L)) ranged from 14.13±0.22 to 19.22±0.42 and 17.72±0.66 to 30.96±1.47 in the surface water of the North Bay

respectively

and from 7.88±0.24 to 33.80±0.47 and 15.73±0.74 to 57.31±1.44

respectively

in the South Bay. The surface water near the estuary had a lower salinity and had a higher concentration of radium isotopes than the samples collected further away. The farther offshore the sample

the higher the salinity was

and the lower the radium isotope activity. The distribution of radium activities in the western part of Qinghai Lake is controlled by several factors

including Buha River runoff

desorption from suspended particles derived from the river

groundwater discharge

and a small amount of diffusion from the sediment.

关键词

Keywords

references

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