论文部分内容阅读
在外贝加尔地区一些缺硒省份的居民中,现已发现缺硒性心脏病。对生物地球化学链中的硒进行分析表明含量相当低。例如,土壤中的硒水平是20～30μg/kg(对照地区为290μg/kg),水中的硒是0.8～1.0μg/kg(对照地区为10～20μg/kg),牧草中的硒是3～5μg/kg(对照地区为50～80μg/,kg)。当地食品中的硒含量亦相应地低:与对照地区相比,马铃薯中的硒阵低2～4倍,肉中降低1.5～4倍,乳中降低6～15倍。
Selenium-deficient heart disease has now been found among residents of a few selenium-deficient provinces outside the Baikal region. Analysis of selenium in biogeochemical chains shows that the content is quite low. For example, selenium levels in soils ranged from 20 to 30 μg / kg (control area 290 μg / kg) and selenium in water 0.8 to 1.0 μg / kg (control area 10 to 20 μg / kg) 5μg / kg (50 ~ 80μg /, kg in control area). The selenium content in local foods is also correspondingly lower: the selenium array in potatoes is 2 to 4 times lower, 1.5 to 4 times lower in meat, and 6 to 15 times lower in milk than in the control area.