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吉林市松花江沿岸称为地甲病流行区,水碘含最较低,为2.5—3.5μg/L。虽经多年的食盐加碘防治,地甲病患病率和肿大率已有明显下降,但患病率仍维持在7%以上,分布在吉林哈达湾的几家大工业,除向大气排放大量烟尘外,还向松花江水系倾注大量工业废水,从而造成了该地区附近水源陆地和空气的严重污染,经人群流行病学调查,其下游沿岸居民甲状腺肿患病率和肿大率约高于远离沿岸
The coast of Songhua River in Jilin City is known as the endemic area of A to D, and the water iodine content is the lowest, ranging from 2.5 to 3.5 μg / L. Although many years of iodized salt prevention and control, the prevalence and enlargement rate of toya have been significantly reduced, but the prevalence rate remained at 7% or more, distributed in Jilin Hada Bay, several major industries, in addition to the atmosphere A large amount of smoke and dust, but also pouring a large amount of industrial wastewater to the Songhua River water system, resulting in serious pollution of water sources land and air near the area. According to the population epidemiological survey, the prevalence and swelling rate of goiter in the downstream residents are about high Far away from the coast