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对福州、雄县等地的地热水水质、周围饮水、地面水、土壤、农作物、鱼及人体健康所作的调查表明:福州地热水中氯化物、总固体含量不高,但雄县地热水中氯化物和总固体的含量均超过农田灌溉水质标准,应防止土壤盐碱化;两地区地热水中的污染指标含量不高,但其有害成分氟化物的含量高达7.1～16.1mg/L,均超过农业灌溉、渔业用水标准及地面水最高允许浓度;地热水及其利用后的尾水直接排入外环境,使地热点附近的饮水、地面水及土壤受到不同程度的污染,其污染程度因南北方气候的差异而有所不同,地热点的蔬菜及地热水养殖的鱼体中氟化物的含量均高于对照点;被调查地区地热水中氟对人体健康的影响迄今尚未达到危害水平,小学生尿氟正常,氟斑牙尚未出现明显增长的趋势,但远期的影响不可忽视。
The investigation on the quality of geothermal water, surrounding drinking water, surface water, soil, crops, fish and human health in Fuzhou and Xiongxian shows that the total solid content of chloride in Fuzhou geothermal water is not high, but in Xiongxian Hot water chloride and total solids content of farmland irrigation water quality standards are exceeded, should prevent soil salinization; two areas of geothermal water pollution index is not high, but the harmful components of fluoride content as high as 7.1 ~ 16.1mg / L, all exceeding the standards of agricultural irrigation and fishery water and the maximum allowable concentration of surface water; the geothermal water and its utilized tail water are directly discharged into the external environment so that drinking water, surface water and soil near the geothermal point are polluted to different degrees , The degree of pollution due to the difference between the north and the south climate varies, geothermal vegetables and geothermal aquaculture water fluoride content of the fish were higher than the control point; geothermal water in the survey area of fluoride on human health The impact has not yet reached the level of harm, urinary fluoride normal primary school students, dental fluorosis has not yet showed a significant increase in the trend, but the long-term effects can not be ignored.