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Dietary and drinking water intake of essential trace elements in a typical Kashin-Beck disease endemic area of Tibet, China

文献类型： 外文期刊

作者： Zha, Xinjie 1 ; An, Jialu 1 ; Gao, Xue 2 ; Tian, Yuan 3 ;

作者机构： 1.Xian Univ Finance & Econ, Changning Str 360, Xian 710100, Peoples R China

2.Tibet Acad Agr & Anim Husb Sci, Inst Agr Resources & Environm, Jinzhu Str 130, Lhasa 850000, Peoples R China

3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modelling, Datun Str 11A, Beijing 100101, Peoples R China

关键词： Essential trace elements; Highland barley; Drinking-water; Oral intake; Health risk assessment

期刊名称：ENVIRONMENTAL HEALTH （ 影响因子：7.123； 五年影响因子：7.879 ）

ISSN：

年卷期： 2022 年 21 卷 1 期

页码：

收录情况： SCI

摘要： Background: Essential trace elements (ETEs), such as copper (Cu), iron (Fe), manganese (Mn), molybdenum (Mo), selenium (Se), zinc (Zn), are very important elements for human health. Methods: In this study, 89 drinking water samples and 85 highland barleys were collected from 48 villages in 11 townships, and the average daily dose (ADD) of ETEs were calculated, in addition, health effects of ETEs to rural residents in Luolong County, a typical Kashin-Beck disease (KBD) endemic area in Tibet, were assessed. Results: The mean concentrations of Cu, Fe, Mn, Mo, Se, Zn in drinking water were 0.278 +/- 0.264 mu g.kg(-1), 0.766 +/- 0.312 mu g.kg(-1), 0.411 +/- 0.526 mu g.kg(-1), 0.119 +/- 0.223 mu g.kg(-1), 0.155 +/- 0.180 mu g.kg(-1), and 0.804 +/- 1.112 mu g.kg(-1), respectively; and mean concentrations of Cu, Fe, Mn, Mo, Se and Zn in highland barley were 3.550 +/- 0.680 mg.kg(-1), 81.17 +/- 38.14 mg.kg(-1), 14.03 +/- 1.42 mg.kg(-1), 0.350 +/- 0.200 mg.kg(-1), 0.0028 +/- 0.0056 mg.kg(-1), and 23.58 +/- 3.10 mg.kg(-1), respectively. The ADD of Cu in the study area was appropriate; the ADD of Fe and Mn in each township were higher than the maximum oral reference dose recommended by the National Health Commission of China, indicating that Fe and Mn had non-carcinogenic health risks; the ADD of Mo and Zn in 36.36% and 54.55% of the townships exceeded the maximum oral reference dose; and 72.73% of the townships had insufficient ADD of Se. The ADD of Mo, Cu and Se in different townships was significantly correlated with the prevalence of KBD. Conclusions: Therefore, in order to prevent and control the prevalence of KBD and ensure the health of local residents, it is necessary to reduce the intake of high concentrations of Fe, Mn and Zn in diet, as well as increase the intake of Mo, Cu, especially Se.

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