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Environmental selenium in the Kaschin-Beck disease area, Tibetan Plateau, China
Zhang B. J.; Yang L. S.; Wang W. Y.; Li Y. H.; Li H. R.
Source PublicationEnvironmental Geochemistry and Health
2011
Volume33
Issue5
Pages495-501
KeywordEnvironment Selenium Kaschin-beck Disease Tibetan Plateau Soil Selenoproteins
AbstractNow, there is a decreasing trend for the prevalence rate of Kaschin-Beck disease (KBD) in most parts of China, but the disease is still active and severe in the Tibetan Plateau for some reason. To further explore the role of selenium in the occurrence of KBD, We collected samples including drinking water, cultivated topsoil, Highland Barley grains, and tsamba in Rangtang County and Aba County, Sichuan Province and determined concentrations of selenium by Hydride Generation Atomic Fluorescence Spectrometry. Levels of selenium in the environment were analyzed in detail. Selenium in the soil-plant-food system and their relationship with prevalence rate of KBD were also discussed. The results indicate: (a) the levels of environmental selenium are very low and the study area belongs to a selenium-deficient ecological landscape; (b) the KBD becomes much more severe with decreasing environmental selenium under the selenium-deficient condition. Namely, the lower the environmental selenium is, the more severe the disease is; (c) soil selenium deficiency plays a critical role for the prevalence of local KBD, and more factors inducing selenium deficiency should be more concerned in the future.
Indexed BySCI
Language英语
ISSN0269-4042
Document TypeSCI/SSCI论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/22437
Collection历年回溯文献
Recommended Citation
GB/T 7714
Zhang B. J.,Yang L. S.,Wang W. Y.,et al. Environmental selenium in the Kaschin-Beck disease area, Tibetan Plateau, China. 2011.
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