Characteristics of water radioactivity in the coal mining area at the southern margin of Yili basin
In order to investigate the current status of radioactive environment in the key coal resource development areas on the southern edge of the Yili basin,and to provide basic data for the safe development and in groundwater.The water uranium anomaly areas were mainly distributed in the Honghaigou to Jiagesitai and radiation pollution prevention and control of the coal fields.On the basis of the systematic collection of previous uranium hydrochemical investigations,we have gained a preliminary understanding of the distribution characteristics of radioactive isotopes in different water bearing rock layers by sampling and analyzing the radionuclide cativity of water sources such as well water,spring water,river water,hydrogeological long-term observation hole water,drinking water in production mining areas,and groundwater in uranium mining leaching areas within the study area.We found a total of 30 uranium anomaly points in groundwater,10 uranium anomaly points in surface water,and 32 radon anomaly points in groundwater.We have designated 9 uranium anomaly areas in groundwater,5 uranium anomaly areas in surface water,and 11 radon anomaly areas Suasu to Daladi areas,They were mostly located in uranium deposits and their surroundings.The abnormal areas of water radon were significantly controlled by mineral deposits,and some are controlled by faults.The concentration of natural radioactive nuclides in coal mine drainage is equivalent to that of the entire Xinjiang region,The concentration of natural radioactive nuclides in coal mine drainage was equivalent to that of the entire Xinjiang region,and the total amount of α and β of drinking water in daily life was accorded with the hygiene standards for drinking water,But the total amount of α and β of groundwater in the in-situ leaching area of uranium mines has exceeded the limit and was not fit to drink.We comprehensively analyze and believe that the formation of water uranium anomalies and water radon anomalies in the study area is closely related to the development of nearby uranium mineralization,so it is necessary to carry out radioactive environment assessment for the development and utilization of groundwater nearby in the future.
the southern margin of Yili basinkey coal development zoneradioactivity in water geological environment
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