有关病区及非病区大量内外环境材料分析结果,证明了病区具有低硒的水土特点,这一结果为硒的现场预防效果提供了有力的证据。在内环境的研究方面,过去主要用发硒水平作为指标,为了说明整个机体的盈亏状态,有必要阐明发硒水平的高低和机体硒代谢水平的关系。以往曾用病区及非病区粮水喂养动物,发现前者心、肝、肾等组织对~(75)Se的吸取量均高 The analysis of a large amount of environmental materials in the ward and non-ward shows that the ward has the characteristics of low selenium in water and soil. This result provides strong evidence for the preventive effect of selenium on site. In the research of internal environment, the level of selenium in the past was mainly used as an index. In order to explain the state of the whole body’s profit and loss, it is necessary to elucidate the relationship between the level of selenium and the level of selenium metabolism. In the past, animals were fed on ward and non-ward water, and the amount of ~ (75) Se absorbed by the former heart, liver and kidney tissues was found to be high