高氟潜水病区低氟潜水的存在及其分布的研究

STUDY ON THE EXISTENCE AND DISTRIBUTION OF LOW FLUORINE PHREATIC WATER IN THE AREAS OF HIGH FLUORINE PHREATIC WATER

本文研究了吉林省西部9个县(市)、2665个病区10611眼潜井水含氟量,低氟潜水在高氟区存在与否及分布状况。结果表明,含氟量低于1.0mg/L以下的潜井占32.8％,有低氟潜水的病区占48.3％。证明近半数病区有低氟潜水水源。宏观与微观研究结果,高、低氟潜水在病区内镶嵌存在,与地理位置、河流多少等因素有关,且差异很大。病区低氟潜水分布无固定形态,与微地貌的变化、潜水经流和渗透、土质结构关系密切。土壤结构、成分、微量元素含量影响水的质量。高、低氟浅井周围混合土壤18种元素分析结果无明显规律性。

The fluorine contents were studied in the paper, through testing 10611 wells of 2665 areas of illness at the 9 counties in the west of Jilin Province. At the same time, whether existence and distribution of the low fluorine phreatic water in the areas of high fluorine were also studied. The results showed that the rate of wells in which the fluorine contents lower than 1. 0mg/L were 32. 8 percent, and the region of low fluorine were 48. 3 percent. These researches confirmed that the low fluorine phreatic water resources existed in the 50 percent areas of illness. The research showed that existence . of high and low fluorine phreatic water assumed mounting forms. The situation of the existence changed greatly which were related with the number of rivers in those areas and the geographical position. There were no fixed shape in the distribution of the low fluorine phreatic water. Those were related with the micro-geomorphic change. The flowage and osmosis of the under water and soil structure. The soil structure, composition and content of trace elements affected the quality of the water in these areas. It was not obvious regularity that the analyses of 18, kinds of trace elements were mixed around the high and low fluorine wells.