浙江北部地区地下水高氟和高砷分布特点和建议

在分析了浙江北部地区地下水类型、特征、地下水开采现状和水位变化基础上，通过对不同类型地下水深井样品测试数据的研究，查明了区域地下水高氟和高砷的分布特点。高氟区主要出现于妙西花岗岩裂隙水和白雀岩溶水分布区，高砷区主要位于南浔第Ⅱ承压含水层局部区域。研究认为高氟和高砷地下水分布区与区域土壤和浅层地下水中总氟和总砷含量没有直接联系，深井地下水中的高氟和高砷主要与深部断裂构造有关。研究地区的这种高氟和高砷地下水目前仍然为很多居民所饮用，作者认为长期饮用这种高氟和高砷地下水容易导致地方病的产生，建议在高氟和高砷地下水分布区停止生活用水开采，有条件的企事业单位应实行改水方案。

Distribution characteristics of high content fluorine and arsenic of groundwater and countermeasure in Huzhou areas of Zhejiang Province

On the basis of the analysis of groundwater types, characteristics, groundwater exploitation and water level changes, the regional distribution of the high fluoride and arsenic groundwater were turned up in Huzhou areas of Zhejiang Province according to studying the test data of the different types of groundwater from the deep wells. High fluoride areas are occurred in the distribution areas of granite fissure water in Miaoxi town and those of karst water in Baique town. Areas with high concentration of arsenic are discovered mainly in the second confined aquifer of Nanxun city. The article suggests that there is no direct relationship between high fluoride and arsenic groundwater distribution areas with the contents of the total fluoride and total arsenic in soil and shallow groundwater, however, high fluoride and arsenic of the deep well groundwater are principally related with deep faults. The groundwater with high fluoride and arsenic in the studied area is still drunk by the residents. Authors thought that long-term consumption of such groundwater can lead people to the emergence of endemic easily, therefore, authors suggest stopping the exploitation of groundwater in this area for life, and some enterprises should carry out the program of groundwater management.