山东省高密地区高氟地下水的成因浅析

氟中毒是在特定的地理环境中发生的一种生物地球化学性疾病,其形成受多种因素的影响和制约。高密市地势南高北低,最高点海拔92 m,最低点海拔7.5 m;地下水主要以大气降水为补给源,水位标高由南向北逐渐降低,随着浅层地下水的大量蒸发,致使地下水中氟含量不断增高,最后形成高氟地下水。高密市氟中毒是由饮用高氟地下水引起的。高密市北部6镇地下水氟含量一般为5 mg/L,极值达到18.00 mg/L,当地居民长期饮用高氟水,致使部分人群发生氟中毒,对其身心健康造成极大伤害。

Genesis Analysis of High-fluorine Underground Water in Gaomi Area of Shandong Province

Fluorosis is a kind of biologic geochemistry disease which is found in particular geographic environment.It is controlled by multi-elments.The physical features of Gaomin city is high in south part and low in north part.The highest sea level is 92m and the lowest one is 7.5m.Atmospheric precipitation is major supplemental source of underground water.Water levels are decreasing from south to north part.Accompanying with evaporation of shallow underground water,fluorine content is increasing continuously,and formed high-fluorine underground water finally.Average fluorine contents of six towns in Gaomi city is 5mg/L,and extremum value can reach 18.00mg/L.Due to drinking high-fluorine water for a long time,fluorosis happened in partial local residents.It will do great harm to their physical and psychological health.