碘(1)是人体必需的微量元素之一。它在自然界分布很少,在河水中它的含量也很低。据安徽省有关部门检测与计算,每毫克河水碘含量在0.01微克以下。碘在人体内是参与合成甲状腺素必不可缺的元素。缺少了碘,甲状腺素便不能正常分泌,继而便患碘缺乏病,其表现形式包括甲状腺肿(即俗称的“大脖子病”)、死胎、流产、先天畸形等。 Iodine (1) is one of the essential trace elements of the human body. It is rarely distributed in nature, its content in the river is also very low. According to the Anhui Provincial Department of detection and calculation, iodine per mg of water in the following 0.01 micrograms. Iodine in the human body is involved in the synthesis of thyroxine essential elements. Lack of iodine, thyroid hormone can not be normal secretion, and then suffering from iodine deficiency disorders, its manifestations include goiter (commonly known as “big neck disease”), stillbirth, miscarriage, congenital malformations.