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为了解青海省人群和环境中硒含量与分布及对健康的影响，在２３个县、市的９１个采样点内，采集人体的发、血、尿及环境的水、土、食物样品３０３５份，用荧光法进行硒含量测定。结果表明：人群生物硒含量总体水平与低硒国家相近，呈低水平。环境硒贫乏。全省有６９．５７％的地区属于低硒、缺硒和严重缺硒地区，有８４．７３％的人群血硒含量低于正常值。植物性食物硒与人体血硒间相关密切，证实外环境低硒通过食物链而致人体内环境呈缺硒状态。７种地区及６个民族人群生物硒含量各自间有差异性。提示人群硒水平与经济发展、硒摄入量、地理环境、生活习俗等因素有关，而与海拔高度无关。
To understand the selenium content and its distribution in the population and environment of Qinghai Province and its impact on health, 3035 samples of hair, blood, urine and environmental water, soil and food samples were collected at 91 sampling points in 23 counties and cities , Determination of selenium content by fluorescence method. The results showed that the overall level of biogenic selenium in the population is similar to that in low-selenium countries, showing a low level. Selenium poor environment. 69.57% of the province belongs to low-selenium, selenium-deficient and severely selenium-deficient areas, and 84.73% of the population have lower blood selenium levels than normal. Selenium and selenium in human body blood selenium is closely related to blood, confirmed that the external environment of low selenium through the food chain and the human body was selenium deficient state. There are differences in biological selenium content in seven regions and six ethnic groups. Tip Selenium levels and economic development, selenium intake, geographical environment, customs and other factors, and has nothing to do with the altitude.