1983年8月～1984年4月对内蒙牧区达茂旗蒙古族健康儿童血清中锌、铜、锰、镉含量进行测定,并以呼和浩特市儿童作对照。 达茂旗历年平均气温3.4℃,最低-40℃,风多雨少。居民以牧业为主,主食是牛、羊肉和奶制品(奶酪、奶油等),全年几乎无蔬菜、水果、鸡蛋、豆制品等。饮水为井水、天然河水或蓄积的雪。 From August 1983 to April 1984, the content of zinc, copper, manganese and cadmium in Mongolian healthy children in Damo Banner, Inner Mongolia, was measured, and the control was made in Hohhot children. The annual average temperature of Damao Banner is 3.4 ℃ and the lowest is -40 ℃. Residents dominated by animal husbandry, staple food is cattle, mutton and dairy products (cheese, butter, etc.), almost no vegetables, fruits, eggs, soy products and so on throughout the year. Drinking water is well water, natural river water or accumulated snow.