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硒是人体生命必需的微量元素,人类有40余种疾病与缺硒有关,世界许多国家都有缺硒地带。我国有15省市约1亿人处于低硒状态,陕西省近10年来仅克山病、大骨节病补充硒已达234万人次。紫阳为中国已确认的两大富硒区之一(另有湖北恩施),境内岩石、土壤、动物、植物、人体含硒3.9826-58.2085ppm,已故的著名学者Schrauzer教授
Selenium is a trace element necessary for human life. There are more than 40 kinds of diseases in humans related to selenium deficiency. Many countries in the world have areas lack of selenium. About 15 million people in 15 provinces and cities in China have a low selenium status. In the recent 10 years in Shaanxi Province, only Keshan disease and Kaschinchipinia selenium have reached 2.34 million person-times. Ziyang is one of the two largest selenium-enriched areas in China (and another in Enshi, Hubei Province). Its soil, rock, soil, animal, plant and human body contain 3.9826-58.2085ppm of selenium, and the late Scholar Schrauzer