海河平原区高氟地下水分布与评估

海河平原区是我国政治文化中心和工农业生产基地,也是高氟地下水的重灾区。调查研究该地区高氟地下水的分布规律、影响因素、健康风险对于区域社会经济发展和水生态文明建设具有重要意义。根据2014-2015年海河平原区269眼浅层地下水监测井的氟化物检测数据,研究区地下水中氟化物浓度最高为2.26mg/L。高氟水主要分布在研究区中部,原生地质条件和人类活动是影响高氟水形成的主要因素。采用非致癌物质健康风险评估模型对高氟水地区的健康风险进行了量化评估,该地区氟化物健康风险平均为0.45×10~(-8)。避免高氟水危害应实施水源优选、水质监测、合理开发地下水等多个方面的措施。

Distribution and assessment of high fluorine groundwater in Haihe River Plain

The Haihe River Plain is the political and cultural center, the industrial and agricultural production base of China, but also the hardest hit area by the high fluorine groundwater. It is important to investigate the distribution law, influencing factors and health risk of high fluorine groundwater in the area for the regional social economic development and water ecological civilization construction. According to the fluoride detection data of 269 monitoring wells in 2014 and 2015 of the Haihe River Plain, the highest fluoride concentration in groundwater in the study area was 2.26mg/L. High fluorine water was mainly distributed in the middle of the study area, and the primary geological conditions and human activities were main factors that influence the formation of high fluorine water. Non carcinogenic substance health risk assessment model was used for the quantitative assessment of health risk of high fluorine water area, and the area of fluoride health risk is about 0.45×10^-8. To avoid high fluorine harm, many aspects of water resources optimization, water quality monitoring, rational exploitation of groundwater and other measures should be implemented.